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50 results about "Triallylamine" patented technology

Triallylamine's estimated Henry's Law constant(1,2) indicates that volatilization from moist soil surfaces may occur(SRC). The pKa of triallylamine is 8.31(4), which indicates this compound will partially exist in the protonated form in water and moist soil adn the protonated form will not volatilize.

Method for industrial hydrochloric acid purification by liquid extraction

The invention discloses a method of extractive purifying industrial alcaine, which comprises the following steps: setting triallylamine as extractant, isooctanol as assisting solvent and coal oil as diluent; forming extract organic phase through kerosene; extracting industrial alcaine in the extract pot; washing through pure water; stripping; getting high-purity alcaine. The invention possesses steady quality and high-purity, which can realize continuous mass production.
Owner:广东省富远稀土有限公司

Rapid-hardened super-early strength polycarboxylate water reducer and preparation method thereof

ActiveCN108192039APromotes hydrationShorten the surfaceMethacrylateHydration reaction
The invention discloses a rapid-hardened super-early strength polycarboxylate water reducer and a preparation method thereof. According to the rapid-hardened super-early strength polycarboxylate waterreducer disclosed by the invention, by using a molecular cutting technique, molecular structures of main chain groups, side chain groups and the like are designed, a polyether monomer of a super-highmolecular weight is adopted as an active large monomer, a structure with a long side chain and a short main chain is formed by molecular chains, a small monomer of self-made unsaturated alcohol aminoester and small monomers such as ethyl methacrylate with N groups and triallylamine are introduced, and solution polymerization is carried out at a low temperature. The synthesized polycarboxylate water reducer has an outstanding function of promoting cement hydration reactions, can be applied to steam-curing concrete, low-temperature environment concrete and concrete with a requirement of demolding in advance, is capable of remarkably shortening the plastering and primary curing time of a molded plate, has a remarkable early strength effect, and is capable of accelerating the construction progress of concrete and increasing the transfer rate of mold plates.
Owner:KZJ NEW MATERIALS GROUP CO LTD

Clay antiswelling agent for petroleum extraction and preparation method thereof

ActiveCN101921366ATo overcome the shortcomings of poor anti-expansion effectOvercoming osmotic injuriesDrilling compositionPotassium persulfateNitrogen gas
The invention relates to a clay antiswelling agent for petroleum extraction and a preparation method thereof. The preparation method comprises the following steps of: dissolving 50-90 percent of diallyl ammonium chloride monomer and 10-50 percent of triallylamine monomer into distilled water according to mass proportion, wherein the total mass proportion concentration of the two monomers is 20-80 percent; adding into a reactor; charging nitrogen; adding initiator at 65-85 DEG C, wherein the initiator is ammonium persulfate, potassium persulfate or hydrogen peroxide; and reacting for 4-6 hours to obtain a polymer clay antiswelling agent for petroleum extraction, which has the molecular structure that three branch chains contain organic cations. The antiswelling agent has high inhibiting performance on clay, durable antiswelling effect, water scouring resistance and no damage to the stratum and can be used for water injection, acidification and well control fluid.
Owner:PETROCHINA CO LTD

Fabric formaldehyde-free fixing agent and preparation method thereof

The invention relates to a fabric formaldehyde-free fixing agent, and a preparation method thereof, and belongs to the technical field of textile auxiliary agents. The fixing agent comprises the following components in parts by weight: 15-25 parts of crylic acid butyl ester, 5-9 parts of chitosan hyamine, 6-10 parts of isobornyl acrylate, 7-14 parts of acrylyl oxyethyl acrylate trimethyl ammonium chloride, 8-10 parts of triallylamine, 2-5 parts of organo-siloxane, 3-5 parts of glacial acetic acid, 0.1-1 part of azodiisobutyronitrile and 100-120 parts of deionized water. The fabric formaldehyde-free fixing agent is simple in preparation process, the prepared fixing agent is free of formaldehyde and APEO (Alkylphenol Ethoxylates), static combination of cation groups in fixing agent molecules with anion groups in dye can be achieved, insoluble lake can be formed on the surface of a fabric, and hydrosolvent groups of the dye are sealed up, so that the washing fastness of the colored fabric can be improved.
Owner:JIANGSU ZHONGXIN RESOURCES GRP

Microbial self-repairing method for tunnel lining concrete cracks

ActiveCN111056782AProlong effective lifespanImprove water seepage repair effectMicroorganism based processesOn/in inorganic carrierMicroorganismSpore
The invention provides a microbial self-repairing method for tunnel lining concrete cracks, and belongs to the technical field of microbiology and civil engineering material crossing. A microbial repairing agent is added into a concrete raw material to prepare tunnel lining concrete. The microbial repairing agent is prepared through the following steps: loading microbes or microbial spores in a carrier to serve as a base core material, immobilizing nutrient substances on the base core material to form a core structure, immobilizing a protective layer on the surface of the core structure, anddrying to obtain the microbial remediation agent, wherein the microbe or microbial spore loading operation is carried out in an environment in which trioctyl phosphate and triallylamine exist. The method can effectively prolong the effective survival time of microbes, has a good self-repairing effect on concrete cracks, and particularly still has a repairing effect of more than 50% on concrete with the cracking width of 0.5 mm or below after 90 days; and the water seepage repairing effect of the concrete is improved, and the impermeability of the repaired concrete is enhanced.
Owner:ROAD & BRIDGE SOUTH CHINA EINGINEERING CO LTD +1

Polyammonium quaternary polymer for controlling anionic Trash and pitch deposition and treating coated broke

A method is disclosed for controlling anionic trash and pitch deposition and treating coated broke which comprises the step of adding a polyammonium quaternary to a pulp and papermaking system. The polyammonium quaternary, which may be either branched or crosslinked, comprises at least one cationic monomer, preferably diallyldimethylammonium chloride, and at least one branching or crosslinking monomer, preferably N,N,N-triallylamine or N,N,N-triallylamine hydrochloride.
Owner:NALCO CHEM CO

Antibacterial finishing method used for clothes

The invention discloses an antibacterial finishing method used for clothes. The method comprises the following steps: 1) mixing 1-2 parts of glycerin monostearate, 2-3 parts of triallylamine, 1-2 parts of triethanolamine, 6-7 parts of silver nitrate and 1-2 parts of azodiisobutyronitrile, then simultaneously slowly adding 1-2 parts of carboxymethyl cellulose, 4-5 parts of styrene, 8-9 parts of butyl acrylate, 2-3 parts of methyl triethoxysilane, 5-6 parts of polyoxyethylene ether and 250 parts of deionized water, completing feeding within 45 minutes and continuously mixing the materials for 2 hours, thus preparing an impregnation liquid; and 2) carrying out padding treatment on the clothes in the impregnation liquid under the conditions that the pressure is 2MPa and the liquid carrying rate is 75%, and treating the clothes at a constant temperature of 150 DEG C for 3 hours after drying the clothes. The finished clothes have antibacterial and antistatic properties and strong durability.
Owner:苏州庄爵服饰有限公司

Color fixing agent and preparation method thereof

The invention discloses a color fixing agent and a preparation method thereof. The color fixing agent is prepared from the following raw materials in parts by mass: 90-110 parts of dimethyl diallyl ammonium chloride, 20-30 parts of triallylamine, 8-16 parts of allyl alcohol, 2-2.6 parts of persulfate, 0.95-1.35 parts of hydrosulphite, 0.16-0.2 part of dithiocarbamate, 1.2-4.5 parts of nano-silicon dioxide, 0.15-0.8 part of a silane coupling agent and the balance being water. The silane coupling agent is adopted for modifying the surface of the nano-silicon dioxide, and the obtained modified nano-silicon dioxide is capable of obviously improving the wear resistance and the mechanical properties of the color fixing agent; the dimethyl diallyl ammonium chloride is selected as a main monomer and subjected to solution copolymerization with the water-soluble triallylamine and the allyl alcohol to obtain a cationic quaternary ammonium salt polymer; as a result, the obtained color fixing agent is environmentally-friendly, safe, and high in color fixation effect.
Owner:TAICANG YUNTONG BIOCHEM ENG

Thickener capable of improving hand feeling of pigment print and preparation method of thickener

The invention relates to a thickener capable of improving the hand feeling of a pigment print and a preparation method of the thickener. The thickener consists of crylic acid, acrylic amide, ammonium hydroxide, deionized water, solvent oil, a softener, triallylamine, potassium peroxodisulfate, span 80 and fatty alcohol-polyoxyethylene ether, wherein the softener is self-prepared and is prepared from castor oil, isopropanol and concentrated sulfuric acid or p-toluenesulfonic acid. Compared with the prior art, according to the invention, an esterification method is adopted to synthesize the special softener for being used as an oil phase in inverse emulsion polymerization and the softener and vinyl monomers, such as crylic acid, acrylic amide and the like, are subjected to inverse emulsion polymerization to prepare the thickener capable of improving the hand feeling of the pigment print; the thickener has the characteristics of not influencing fastness of the pigment print, improving the dye field, having hydrophilcity, improving the hand feeling of the pigment print and the like. The thickener is used for a process of high-quality pigment print and dye-imitated paint.
Owner:FIBER CHEM BIOLOGICAL CHEM

Method for synthesizing allylamine using transfer line reactor

The invention discloses a preparing method of alkylamine through pipe reactor, which comprises the following steps: adopting allyl chloride as raw material; blending catalyst, solvent and ammonia phase evenly; pumping in the pipe reactor through metering pump according to the rate of materials; ammonifying to produce acrylamide, diallylamine and triallylamine; adding sodium hydroxide solution to remove amino to obtain the product; setting the normal pressure in the reactor system at 3.0Mpa under 40-80Deg C for 5-20min; rectifying the product; evaporating the solvent and surplus ammonia; gathering 52-55Deg C fraction as acrylamide; boiling to remove water; gathering 107-111Deg C fraction as diallylamine.
Owner:杭州新成化学有限公司

Antibacterial vegetable plastic packaging material and preparation method thereof

The invention discloses an antibacterial vegetable plastic packaging material and a preparation method thereof. The antibacterial vegetable plastic packaging material is prepared from the following raw materials in parts by weight: 26-36 parts of polyethylene terephthalate, 12-25 parts of polyvinyl chloride, 6-11 parts of glyceryl triacetate, 8-14 parts of modified polystyrene resin, 3-7 parts ofpropylene glycol monomethyl ether, 6-12 parts of polyvinyl alcohol, 2-5 parts of antioxidant, 0.8-1.8 parts of inorganic antibacterial agent, 1-3 parts of stabilizer, 6-14 parts of triallylamine, 7-13parts of stearic acid, 8-13 parts of montmorillonite powder, 2-8 parts of biaminopropyl polydimethylsiloxane, 6-10 parts of propenyl thermoplastic elastomer, 4-8 parts of calcium carbonate and 0.5-1.4 parts of preservative. Compared with the prior art, the antibacterial vegetable plastic packaging material disclosed by the invention has relatively high tensile strength and antibacterial propertyand is good in vegetable packaging effect and capable of prolonging the storage time of vegetables.
Owner:桐城市桃花制刷有限公司

Antibacterial finishing method used for clothes

The invention discloses an antibacterial finishing method used for clothes. The method comprises the following steps: 1) mixing 1-2 parts of glycerin monostearate, 2-3 parts of triallylamine, 1-2 parts of sodium oleate, 6-7 parts of silver nitrate and 1-2 parts of azodiisobutyronitrile, then simultaneously slowly adding 1-2 parts of polyvinylpyrrolidone, 4-5 parts of styrene, 8-9 parts of butyl acrylate, 2-3 parts of vinyl trimethoxy silane, 5-6 parts of fatty alcohol polyoxyethylene ether and 300 parts of deionized water, completing feeding within 30 minutes and continuously mixing the materials for 2.5 hours, thus preparing an impregnation liquid; and 2) carrying out padding treatment on the clothes in the impregnation liquid under the conditions that the pressure is 1.8MPa and the liquid carrying rate is 67%, and treating the clothes at a constant temperature of 148 DEG C for 2.5 hours after drying the clothes. The finished clothes have antibacterial and antistatic properties and strong durability.
Owner:海宁家纺产业基地投资开发有限公司

Composite packaging material and preparation method thereof

The invention discloses a composite packaging material and a preparation method thereof. The composite packaging material is prepared from the following raw materials in parts by weight: 8 to 15 parts of sodium polyacrylate, 8 to 15 parts of polyacrylamide, 6 to 14 parts of hydroxyanisole, 3 to 9 parts of triallylamine, 3 to 9 parts of polylactic acid, 5 to 8 parts of polycaprolactone, 8 to 16 parts of polycarbonate, 17 to 26 parts of polyvinyl chloride, 7 to 11 parts of sodium carboxymethyl starch, 14 to 18 parts of polybutene, 2 to 6 parts of methyl silicone resin, 5 to 10 parts of chlorinated ether resin, 0.5 to 0.9 part of sodium tripolyphosphate, 1 to 2.3 parts of foaming agent, and 9 to 14 parts of isopropyl alcohol. Compared with the prior art, the composite packaging material provided by the invention has the advantages of very high elongation at break and tear strength and high temperature resistance.
Owner:ANHUI JIAMU RUBBLE & PLASTIC IND

Fast-cured super-early strength polycarboxylate water reducer and preparation method thereof

InactiveCN108192038APromotes hydrationShorten the surfaceHydration reactionAmino esters
The invention discloses a fast-cured super-early strength polycarboxylate water reducer and a preparation method thereof. According to the fast-cured super-early strength polycarboxylate water reducerdisclosed by the invention, by using a molecular cutting technique, molecular structures of main chain groups, side chain groups and the like are designed, 4-hydroxybutyl vinyl polyoxyethylene etherof a super-high molecular weight is adopted as an active large monomer, a small monomer of self-made unsaturated alcohol amino ester and triallylamine are introduced, and solution polymerization is carried out at a low temperature. The polycarboxylate water reducer has an outstanding function of promoting cement hydration reactions, can be applied to steam-curing concrete, low-temperature environment concrete and concrete with a requirement of demolding in advance, is capable of remarkably shortening the plastering and primary curing time of a molded plate, has a remarkable early strength effect, and is capable of accelerating the construction progress of concrete and increasing the transfer rate of mold plates.
Owner:KZJ NEW MATERIALS GROUP CO LTD

Novel environment-friendly formaldehyde-free dye-fixing agent and preparation method thereof

The invention discloses a novel environment-friendly formaldehyde-free dye-fixing agent which is prepared from crylic acid, ammonium hydrogen sulfite, epoxy chloropropane, benzyl triethyl ammonium chloride, hydroxypropyltrimethyl ammonium chloride chitosan, polyethylene polyamine resin condensation polymer, peroxysulphate, fatty acid polyethylene glycol ester, triallylamine, methacrylic acid beta-butyl hydroxyl and deionized water. The environment-friendly formaldehyde-free dye-fixing agent and a preparation method thereof are used for improving the colour fixation effect of a fabric on a dyestuff, the colour fastness of the fabric is improved, and good washing resistance and fastness are achieved.
Owner:湖州市千金丝织厂(普通合伙)

Environmental friendly high-strength adhesive for building crack and preparation method thereof

The invention discloses an environmental friendly high-strength adhesive for a building crack and a preparation method thereof. The environment friendly high-strength adhesive comprises the following components by mass percent: 69-73 percent of waterborne epoxy emulsion, 19-25 percent of triallylamine waterborne curing agent, 2-6 percent of superfine cement (DMFC-GM), 0.15-0.2 percent of dioctyl phthalate (DOP), 0.1-0.2 percent of sterilizing agent KS25 and 2.6-5.73 percent of tap water. The adhesive disclosed by the invention has the advantages that the content of the volatile organic compounds is low, no methyl aldehyde exists, the non-toxic and environmental friendly effects are achieved, the bonding strength, compressive strength, and tensile strength are high, the adhesion stress is strong, the surface drying time is short, the cost is low, the process is simple, and the construction is convenient by using the adhesive, so that the environmental friendly high-strength adhesive is a novel environmental friendly high-strength adhesive for the building crack, and an ideal substitute for the traditional normal adhesive for the building crack.
Owner:JIANGSU UNIV OF SCI & TECH

Triallylamine film packaging material and preparation method thereof

The invention belongs to the field of packing materials, and relates to a triallylamine film packaging material and a preparation method thereof. The triallylamine film packaging material comprises, by weight, 2-8 parts of triallylamine, 15-30 parts of polypropylene chloride, 12-22 parts of polycarbonate, 3-10 parts of 2-methyl-2,4-pentanediol, 6-10 parts of a polyacrylonitrile fiber, 6-12 parts of chlorine ether resin, and 11-16 parts of polyurethane. The preparation method comprises the steps of high temperature stirring, extruding granulation, and molding cooling. The triallylamine film packaging material prepared in the invention has higher elongation at break and tearing strength than conventional film packaging materials.
Owner:厦门市瀚邦包装制品有限公司

Heat-insulating packaging material and preparation method thereof

The invention discloses a heat-insulating packaging material and a preparation method thereof. The heat-insulating packaging material comprises the following raw materials in parts by weight: 15 to 25 parts of chloric ether resin, 10 to 18 parts of polyvinylidene chloride, 6 to 14 parts of butylated hydroxyanisole, 10 to 20 parts of lignite cerotic acid oxalic ester, 8 to 16 parts of polyurethane, 5 to 10 parts of organic silicon gel, 1 to 3 parts of magnesium chloride, 3 to 7 parts of sodium polystyrenesulfonate, 6 to 13 parts of triallylamine, 5 to 10 parts of a talcum powder, 5 to 12 parts of triphenylphosphine, 3 to 6 parts of diphenyl dichlorosilane, 3 to 9 parts of zinc stearate, 8 to 14 parts of ethoxylated alkylamine, 3 to 7 parts of graphene, 8 to 14 parts of polyamide fiber, 5 to 10 parts of crosslinked polyvinylpolypyrrolidone, 1 to 5 parts of a flame retardant, 2 to 6 parts of benzotriazole and 5 to 9 parts of aluminium silicate fiber. Compared with the prior art, the packaging material has high heat-insulating property and heat-insulating property and is favorable for improving the energy-saving effect.
Owner:桐城市人和包装有限公司

Method of cleaning and process for producing semiconductor device

A method of cleaning for removing metal compounds attached to a surface of a substrate, wherein the cleaning is conducted by supplying a supercritical fluid of carbon dioxide comprising at least one of triallylamine and tris(3-aminopropyl)amine to the surface of the substrate and a process for producing a semiconductor device using the method of cleaning are provided. In accordance with the method of cleaning and the method for producing a semiconductor device using the method, etching residues or polishing residues containing metal compounds are efficiently removed selectively from the electroconductive material forming the electroconductive layer. When the electroconductive layer is a wiring, an increase in resistance due to residual metal compounds can be suppressed, and an increase in the leak current due to diffusion of the metal from the metal compounds to the insulating film can be prevented. Therefore, reliability on the wiring is improved, and the yield of the semiconductor device can be increased.
Owner:SONY CORP +1

Preparation method for pad-dyeing high-temperature-resistant acidic dye-fixing agent and dye-fixing agent prepared by preparation method

The invention discloses a preparation method for a pad-dyeing high-temperature-resistant acidic dye-fixing agent and a dye-fixing agent prepared by the preparation method. The preparation method comprises the following steps: mixing, heating and stirring vinyl acetate and benzoyl peroxide, dropwise adding a triallylamine solution while stirring, cooling and stirring after dropwise adding; adding salicylic acid, heating and stirring; dropwise adding piperidine at a 20-minute moment, heating and stirring after dropwise adding, and cooling to the room temperature to obtain the dye-fixing agent. The preparation method is simple in preparation process; the dye-fixing agent obtained by mutual action of the components does not contain formaldehyde or APEO; positive ion groups in dye-fixing agent molecules are statically combined with negative ion groups in dye to form insoluble color lakes on the surface of fabric to seal water solvent groups of the dye, so that washing fastness resistance of the dyeing fabric is improved. The pad-dyeing high-temperature-resistant acidic dye-fixing agent has the characteristics of being high in dyeing firmness, improving washing fastness and dry-wet firmness, being resistant to high temperature, being environmentally friendly, and being free of pollution, is low in production cost, is stable in performance, is suitable for industrial production, and has a wide market prospect.
Owner:江西德盛精细化学品有限公司

Medicine packing material and preparing method thereof

The invention releases the medicine packing material and preparing method thereof. The medicine packing material is prepared from, by weight, 5-12 parts of triallylamine, 15-30 parts of polycarbonate, 10-26 parts of copolymer of vinyl chloride and vinyl isobutyl ether, 6-12 parts of ethylene-vinyl acetate copolymer, 1.5-5 parts of modified magnesium carbonate, 0.7-1.6 parts of polydimethylsiloxane second quaternary amine, 4-10 parts of talcum powder, 3-9 parts of diatomaceous earth, 4-10 parts of polyetherurathane rubber compound, 5-14 parts of dichlorodifluoromethane, 3-9 parts of polyoxyethylene N-dimethyldodecylamine, 0.8-2 parts of nekal, 1-5 parts of cellulose, 1-6 Nano-TiO_2 and 3-10 parts of ethylene-vinyl acetate copolymer. Compared with the existing technology, the medicine packing material in this invention has better mechanical property and anti-bacterial effect. The material is not easy to become deformed after disposed by high-temperature and high-pressure sterilization. Therefore, it is suitable for the medicine packing field.
Owner:ANHUI SHUNTONG PACKAGING MATERIAL

Water-based flame-retardant paint and preparation method and application thereof

The invention provides a water-based flame-retardant paint and a preparation method and application thereof. The water-based flame-retardant paint is prepared from the following components in parts by weight: 10 to 15 parts of acrylate, 3 to 5 parts of sulfate, 10 to 15 parts of polyvinyl alcohol, 5 to 10 parts of iso-octyl acrylate, 3 to 5 parts of triallylamine, 3 to 5 parts of fatty alcohol-polyoxyethylene ether with a molecular weight of 400 to 1200, 3 to 5 parts of curing agent, 10 to 15 parts of fillers, 12 to 20 parts of dispersing agent and 30 to 45 parts of water. By adding the iso-octyl acrylate, the triallylamine and the fatty alcohol-polyoxyethylene ether with the molecular weight of 400 to 1200 into the raw materials, by virtue of the synergistic effect, the water-based flame-retardant paint is obtained by virtue of modification, so that the paint has good compatibility and flame retardant property.
Owner:顾渊

Solid acid catalyst for glycerinum esterification and aldolization, and preparation method therefor

The present invention discloses a solid acid catalyst for the glycerinum esterification and aldolization, and a preparation method therefor. Triallylamine is reacted with 1, 3-propane sultone to obtain -SO3-functionalized quaternary ammonium salt. After that, through the free-radical polymerization process, the quaternary ammonium salt is initiated by azodiisobutyronitrile to be subjected to the polymerization reaction and the obtained polymer is subjected to the protonation reaction with phosphotungstic acid to obtain a polymeric type solid acid catalyst. The preparation method for the solid acid catalyst is simple and easy to operate, high in catalytic efficiency, reusable and lower in production cost, thus providing a very competitive cleaning means.
Owner:NANCHANG BAIYUN PHARMA

Method of cleaning and process for producing semiconductor device

A method of cleaning for removing metal compounds attached to a surface of a substrate, wherein the cleaning is conducted by supplying a supercritical fluid of carbon dioxide comprising at least one of triallylamine and tris(3-aminopropyl)amine to the surface of the substrate and a process for producing a semiconductor device using the method of cleaning are provided. In accordance with the method of cleaning and the method for producing a semiconductor device using the method, etching residues or polishing residues containing metal compounds are efficiently removed selectively from the electroconductive material forming the electroconductive layer. When the electroconductive layer is a wiring, an increase in resistance due to residual metal compounds can be suppressed, and an increase in the leak current due to diffusion of the metal from the metal compounds to the insulating film can be prevented. Therefore, reliability on the wiring is improved, and the yield of the semiconductor device can be increased.
Owner:SONY CORP +1

Multilayer packaging material and preparation method thereof

The invention discloses a multilayer packaging material and a preparation method thereof. The multilayer packaging material is prepared from the following raw materials in parts by weight: 60-85 parts of polyvinyl chloride resins, 15-25 parts of nickel-plated carbon fiber, 2-5 parts of barium stearate, 3-6 parts of crosslinker, 3-8 parts of phenylsilane, 1-5 parts of lead oxide, 3-8 parts of zinc oxide, 1-5 parts of a lubricant, 8-16 parts of polyvinyl alcohol, 15-25 parts of polyarmide fiber, 3-10 parts of polyisobutene, 7-13 parts of polyphenylene sulfide, 10-16 parts of crylic acid, 5-12 parts of mica powder, 8-13 parts of polyprenol, 12-20 parts of octyl butanate, 2-7 parts of sodium melamine phosphate, 1-6 parts of a wear-resistant agent, 6-15 parts of tetramethoxysilane, and 5-12 parts of triallylamine. Compared with the prior art, the multilayer packaging material has the advantages of being high in strength, strong in wear resistance and the like, thus being capable of better meeting the industrial production demand.
Owner:安徽浩峯塑业有限公司

Preparation method of PDAC with serialized relative molecular mass and high monomer conversion rate

The invention discloses a preparation method of PDAC with serialized relative molecular mass and high monomer conversion rate. According to the method, an industrial product DAC solution is used as araw material, and under a nitrogen atmosphere, a metal ion chelating agent and triallylamine hydrochloride containing a terminal double bond having an average degree of polymerization of 0 to 180 or an oligomer thereof are added, the monomer initial mass fraction ranges from 30.0% to 60.0%, a corresponding water-soluble azo initiator accounts for 0.85%-0.06% by mass of the monomer, and by means oftemperature programmed initiation, heat preservation and curing, a PDAC colloid product with increasing serialized relative molecular mass and high monomer conversion rate is obtained. The colloidalproduct is granulated and dried in a fluidized bed, PDAC dry power is obtained, the serialized relative molecular mass ranges from 2.00 dL / g to 14.00 dL / g on the basis of a characteristic viscometer,the PDAC dry powder is stable and controllable, and the monomer conversion rate is 99.50% or above.
Owner:NANJING UNIV OF SCI & TECH
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