46results about How to "Simple industrial preparation" patented technology

The invention discloses a polylactic acid / polyamide 11 alloy material. The polylactic acid / polyamide 11 alloy material is mainly prepared by melting and blending polylactic acid, polyamide 11, and a third component by using melting and mixing equipment; based on the mass of the polylactic acid and the polyamide 11, the polylactic acid is 5 to 95 mass percent, and the polyamide 11 is 5 to 95 mass percent; and the third component is 0 to 15 percent based on the total mass of the polylactic acid and the polyamide 11, wherein 0 infinitely approaches 0 but is not 0; and the third component is an elastomer containing an epoxide group. The polylactic acid / polyamide 11 alloy material is high in hardness, modulus and tensile strength, the impact resistance is greatly improved and the polylactic acid / polyamide 11 alloy material meets the performance using requirements of a structural material.

The invention discloses a transparent heat-resistant polycarbonate material and a preparation method thereof. The polycarbonate material is a blend of polycarbonate, polyarylate and organic salt. The preparation method is to vacuum-dry polycarbonate and polyarylate at 80-120°C for 24-48 hours respectively; dry polycarbonate, polyarylate and organic salt according to the mass ratio of 60-90:40-10: 0.3-3, put into the melting and mixing equipment for melting and kneading at 250-300°C to obtain a mixture; discharge the mixture from the melting and mixing equipment, and lower it to normal temperature to obtain a polycarbonate material. The polycarbonate material in the invention has excellent light transmittance and good heat resistance, and its preparation method only needs to use common melting and mixing equipment, and the industrial preparation is simple.

The invention discloses an in-situ self-assembly method for preparing ABS / PVDF alloy and a product thereof. Because the ABS and PVDF are completely incompatible systems of thermodynamics with poor interfacial adhesion force, so that the performance thereof is influenced, and the material has no practical value. In the invention, a graft polymer is generated in situ by using a melt blending method,and is applied to an ABS / PVDF system as a compatibilizer, so that the prepared compatibilizer can effectively compatibilize the ABS and the PVDF, enhance interfacial adhesion force, and improve the mechanical property of the ABS / PVDF alloy material. The in-situ self-assembly method for preparing ABS / PVDF alloy and product thereof has the advantages that: 1) the mechanical property of the alloy material added with the compatibilizer is greatly improved; 2) self-cleaning function through the addition of PVDF is achieved to solve the problem that the ABS is easy to get dirty and not resistant tooil; 3) the preparative equipment is a common melt blending equipment with simple industrial preparation, and easy achievement of the process.

The invention discloses a deep eutectic solvent (DES)-water mixture used for simultaneous extraction of rhodioloside and 4-(2-hydroxyethyl)phenol from rhodiola root, and a preparation method and an extraction method thereof. The DES-water mixture is prepare through mixing of DES and deionized water, wherein the DES is prepared from glycol and acetylpropionic acid at a molar ratio of (1-3) : (3-1).The DES-water mixture is simple to prepare, is convenient for industrialized preparation, can be biologically degraded easily, is nontoxic, and is high in environment compatibility. The DES-water mixture is low in viscosity, and excellent in fluidity. The DES-water mixture can be used for simultaneous extraction of rhodioloside and 4-(2-hydroxyethyl)phenol from rhodiola root, increasing the extraction rate of rhodioloside and 4-(2-hydroxyethyl)phenol from rhodiola root; operation is safe; and no environment pollution or harm on human body is caused.

Provided is a method for preparing a lower unsaturated fatty acid ester, which comprises carrying out an aldol condensation reaction between dimethoxymethane (DMM) and a lower acid or ester with a molecular formula of R1—CH2—COO—R2 on an acidic molecular sieve catalyst in an inert atmosphere to obtain a lower unsaturated fatty acid or ester(CH2═C(R1)—COO—R2), wherein R1 and R2 are groups each independently selected from the group consisting of H— and C1-C4 saturated alkyl group.

The invention discloses a PLA (polylactic acid) / ABS (acrylonitrile-butadiene-styrene copolymers) alloy material and a preparation method thereof. The PLA / ABS alloy material is a blend and the blend comprises PLA, ABS and a third component, wherein PLA accounts for 5-95% of total PLA and ABS by mass; ABS accounts for 95-5% of total PLA and ABS by mass; the third component accounts for 0.5-15% of total PLA and ABS by mass. The method comprises the following steps: mixing dried PLA, ABS and the third component uniformly and then adding the mixture to melt mixing equipment to undergo melt blending and blending the mixture at 180-220 DEG C for 5-10 minutes, thus obtaining a blend; then preparing the PLA / ABS alloy material through a forming process. The PLA / ABS alloy material and the preparation method have the advantages that the raw materials of PLA root in biomass, so that the PLA material has good biocompatibility and biodegradability; the prepared alloy material has high hardness, high modulus and tensile strength and high impact resistance.

The invention discloses an internally-plasticized antistatic polyformaldehyde material and a preparation method thereof. The polyformaldehyde material is a mixture of polyformaldehyde and ironic liquid. The preparation method comprises the following steps: respectively carrying out vacuum drying on polyformaldehyde and ironic liquid at 80-120 DEG C for 24-48 hours; adding the dried polyformaldehyde and ironic liquid into fusion mixing equipment in a mass ratio of 100 to (0.01-10), and carrying out fusion mixing at 170-200 DEG C, so as to obtain a mixture; and discharging the mixture out of the fusion mixing equipment, and cooling to the room temperature, so as to obtain the polyformaldehyde material. The polyformaldehyde material disclosed by the invention has excellent antistatic performance; by adding ironic liquid, the size of a spherocrystal of a polyformaldehyde matrix can be effectively reduced, so that a certain plasticization effect is achieved; and only common fusion mixing equipment is used in the preparation method, so that the industrial preparation is simple.

The invention relates to a complex catalyst for viscosity reduction of thick oil by hydrothermal catalytic cracking and application thereof. The complex catalyst is prepared by the following steps of: 1) selecting raw materials: selecting 2 to 3 mass parts of C12-C18 aliphatic carboxylic acid, 1 to 2 mass parts of ethylene dimine, 3 to 5 mass parts of sodium fluoroacetate, 1 to 2 mass parts of sodium hydroxide, 3 to 5 mass parts of nickel chloride hydrate and 140 to 180 mass parts of toluene; and 2) mixing the C12-C18 carboxylic acid and ethylene dimine, then heating to 160 to 180 DEG C in anoil bath and reacting for 2 to 3 hours, cooling to 90 to 95 DEG C, adding sodium chloroacetate-containing aqueous solution, stirring, reacting for 40 to 50 minutes and then adding NaOH, continuously reacting for 10 to 13 hours at the temperature of between 90 and 100 DEG C, finally adding the NiCl2.6H2O and the toluene, refluxing and splitting water for 3 to 5 hours and filtering, and performing reduced pressure desolvation on the filtrate to obtain the catalyst, wherein after the reaction is finished, the viscosity reduction rate of the thick oil reaches over 90 percent, and 9 to 15 percent of heavy component is cracked into a light component.

The invention discloses an optically transparent polymethyl methacrylate / polycarbonate composite and a preparation method thereof. The material of the invention is a blend of polymethyl methacrylate, polycarbonate and an organic salt whose cation is a metal. The mass ratio is 60-90:40-10:0.2-3. In the present invention, adding the metal organic salt as the cation greatly improves the compatibility between polymethyl methacrylate and polycarbonate, greatly improves the light transmittance of the material, and makes the light transmittance of the material greater than 90%. , the haze is less than 10%, the refractive index is greater than 1.49, and the material is optically transparent.

The invention discloses a supersoft halogen-free flame retardant thermoplastic elastomer and a preparation method thereof. The existing commercialized thermoplastic elastomer hardly realizes integration of halogen-free flame retardance and softness. The elastomer is a blend which comprises ethylene vinyl acetate crosslink, ethylene vinyl acetate (EVA), a peroxide vulcanizing agent and a flame retardant. The method comprises the following steps of: carrying out dynamic vulcanization on the ethylene vinyl acetate (EVM), ethylene vinyl acetate (EVA) and the vulcanizing agent according to the mass ratio of 1000:1000:0.1-5 at the temperature of 30-200 DEG C, drying and preparing a base material; and adding the flame retardant into the base material, fusing and blending at the temperature of 140-250 DEG C, and discharging to prepare the elastomer. The supersoft halogen-free flame retardant thermoplastic elastomer disclosed by the invention has the advantages of good softness, excellent flame retardance, no halogen, simple industrial preparation, economical processing and recoverability.

The invention discloses a method for reusing the waste film of a solar cell backboard and its leftover materials. In the method, the crushed solar cell backboard waste film, ethylene-vinyl acetate copolymer (EVA) and a high-efficiency compatibilizer are added into a melt blending device to melt and extrude to prepare a novel alloy material. The invention solves the industrial problems of the manufacturers of the solar battery backplane and its upstream backplane film, turns the waste of the waste film of the solar battery backplane in the solar battery industry into treasure, truly realizes the recycling and reuse of resources, and saves non-renewable resources, energy saving and environmental protection.