47 results about "Benzyl peroxide" patented technology

The invention provides a preparation method of a high-strength anti-dazzling coating layer. A formula comprises a shells, methyl methacrylate, gamma-methacyloxypropyltrimethoxylsilane, an ethanol solvent, benzyl peroxide and nano titanium oxide; the preparation method of the coating layer comprises the steps that the shells are placed into a ball milling machine to be milled; the methyl methacrylate, the gamma-methacyloxypropyltrimethoxylsilane, the ethanol solvent, the benzyl peroxide and a tetraethoxysilane solution are added to a reactor to perform reaction; shell powder and a mixed solution are mixed, aerated and stirred; other components are added to an icy water bath; spraying and roasting are conducted to obtain the high-strength anti-dazzling coating layer. The high-strength anti-dazzling coating layer has the advantages of better hardness and substrate adhesion force, the service life of the coating layer is prolonged which the protecting effect on a substrate can be enhancedby the powerful wear resistance and anti-impacting performance of the coating layer, the anti-dazzling effect is strong, the permeable rate of a visible light is high, and the quality of a product isimproved.

The invention discloses an immunosorbent for removing inflammatory factors in blood and a preparation method thereof. Based on a variety of intermolecular interactions between the antigenic epitope ofinflammatory factors such as IL-6, TNF-alpha, IL-1 beta and IL-8 and corresponding receptors thereof, affinity ligand of small molecule polypeptide with 5-18 selective amino acids is designed througha computer-assisted drug design method. Specifically, with vinyl acetate-triallyl isocyanurate as a basic skeleton, a mixture of ethyl acetate and alkane as a pore-forming agent, and a synthetic resin with benzoyl peroxide as an initiator as a carrier, alcoholysis activation is carried out, and then the small molecule polypeptide is grafted to obtain the small-molecule ligand immunosorbent whichdoes not adsorb macromolecular proteins and the like. The immunosorbent is simple to prepare, has high adsorbing capacity, high selectivity, good biological and blood compatibility, and relatively lowcost, and provides a new therapeutic method for removing excessive pathogenic inflammatory factors in patients.

The invention belongs to the technical field of materials and wire cables, and relates to a water-tree-retardant crosslinked polyethylene cable material. The invention is characterized in that the cable material is prepared from linear low-density polyethylene, styrene, polyurethane thermoplastic elastomer, polyethyleneglycol, ethylene-ethyl acetate copolymer, polyethylene wax or paraffin, commercially available nucleator 4030 for wire cable plastics, di-tert-butyl peroxide, benzoperoxide, commercially available antioxidant 300 for plastics or commercially available antioxidant 1010 for plastics or commercially available antioxidant 168 for plastics, and carbon black, wherein the weight ratio of the linear low-density polyethylene to the styrene is 8-10. The invention also relates to a preparation method of the cable material and a water-tree-retardant cable using the cable material. The cable has the advantages of favorable waterproofing effect, simple structure, more stable electric / mechanical / environmental properties, higher reliability and the like, is easy to produce and does not generate water trees.

The invention relates to a benzoxazine resin / ethylene-propylene-diene rubber composite heat insulating layer and a preparation method thereof and belongs to the technical field of heat insulation of solid rocket engines. Raw materials of the composite heat insulating layer comprise the following components in parts by mass: 100 parts of ethylene-propylene-diene rubber, 30-100 parts of benzoxazineresin, 10-15 parts of ablation-resistant fibers, 3-30 parts of solid packing, 6 -12 parts of flame-retardant system, 2-5 parts of process additives and 4.5-9 parts of vulcanization system, wherein thevulcanization system comprises a vulcanizing agent, a co-vulcanizing catalyst and an accelerant, the vulcanizing agent is at least one of sulfur, dicumyl peroxide and benzoyl peroxide, and the co-vulcanizing catalyst is 2-methylimidazole or 4-methylimidazole. The heat insulating layer not only has the favorable heat, mechanical and process properties of an ethylene-propylene-diene rubber heat insulating layer and good compatibility with various propellants and shell materials, but also has high char yield and ablation resistance (the linear ablation rate is 0.02-0.06 mm / s).

A mixture containing at least one first component A and at least one second component B, characterized in that said at least one first component A comprises a methyl methacrylate, a copolymer of methyl methacrylate dissolved in excess methyl methacrylate, optionally comprising, additionally dissolved therein, atleast one polyfunctional (meth)acrylate, especially ethylene glycol dimethacrylate, butanediol dimethacrylate, hexanediol dimethacrylate, triethylene glycol dimethacrylate (TEGDMA), tetraethylene glycol dimethacrylate, diurethane dimeth- acrylate, bis(hydroxymethacryloyloxypropoxy)phenylpropane (bis-GMA), polyethylene glycol dimethacrylate, trimethylolpropane trimethacrylate, ditrimethylol- propane tetraacrylate;and a peroxide-based free-radical initiator, wherein said copolymer of methyl methacrylate is present in an amount of 30-50 parts by weight dissolved in a solution of 65-85 parts by weight of monomeric methyl methacrylate and 3-15 parts by weight of the polyfunctional (meth)acrylate, especially the triethylene glycol dimethacrylate (TEGDMA), mixed with a solution of 0.5 to 3 parts by weight of said peroxide-based free-radical initiator, especially dibenzoyl peroxide, in 70-90 parts by weight of monomeric methyl methacrylate, and said at least one second component B comprises methyl methacrylate and a tertiary amine.

The invention relates to the technical field of pressure-sensitive adhesives, in particular to an acrylate modified rubber pressure-sensitive adhesive, and an acrylate modified rubber pressure-sensitive adhesive tape and a preparation method thereof. The acrylate modified rubber pressure-sensitive adhesive is composed of a component A and a component B. The component A comprises the following rawmaterials by weight: 40-50 parts of cis-1,4-polyisoprene, 2-4 parts of acrylic acid, 30-35 parts of methylbenzene, 0.2-0.4 part of benzoperoxide and 2-4 parts of hydroxypropyl methacrylate. The component B comprises the following raw materials by weight: 6-8 parts of terpene resin, 6-8 parts of coumarone resin, 1-2 parts of glycerol, 0.5-1.5 parts of an anti-aging agent and 0.6-0.8 part of a cross-linking agent. Compared with existing special pressure-sensitive adhesives for PET pressure-sensitive adhesive tapes, the acrylate modified rubber pressure-sensitive adhesive tape of the invention has the characteristics of better aging resistance, better adhesion to a PET base material, higher peel strength and excellent high viscosity.

The invention discloses a CPE (chlorinated polyethylene) coated quartz sand modified low-density polyethylene foam material. The low-density polyethylene foam material is prepared from the following raw materials in parts by weight: 60-100 parts of LDPE (low-density polyethylene), 0-40 parts of LLDPE (linear low-density polyethylene), 30-40 parts of CPE, 10-20 parts of quartz sand, 2-3 parts of vinyl tris(beta-methoxyethoxy) silane, 5-10 parts of triphenyl phosphate, 4-6 parts of 4,4'-oxydibenzenesulfonyl hydrazide, 2-3 parts of ammonium bicarbonate, 5-8 parts of n-butyl methacrylate, 1-1.5 parts of 2,4-dichlorobenzoyl peroxide, 2-3 parts of zinc stearate, 1-2 parts of calcium stearate, 1-2 parts of lead sulfate tribasic, 2-3 parts of polyethylene wax, 3-5 parts of modified tree ash, 1-2 parts of ultraviolet light absorber THUV-328 and 2-3 parts of antioxidant 264. The CPE-coated quartz sand modified low-density polyethylene foam material disclosed by the invention is light in weight, soft, high in strength and good in rebound resilience, the foaming effect is ideal, and bubble holes are uniform, small and dense, so that the CPE-coated quartz sand modified low-density polyethylene foam material is good in fire resistance, resistant to chemical corrosion and ageing and is durable in use.

The invention discloses a steel mesh skeleton composite pipe, which comprises the following raw material components in parts by mass: 15-55 parts of HDPE, 3-18 parts of LDPE, 6-24 parts of LLDPE, 2-20 parts of EVA, drawing grade 4-18 parts of polypropylene, 5-10 parts of montmorillonite, 1-10 parts of white carbon black, 1-10 parts of barium sulfate, 10-20 parts of graphite, 5-15 parts of carbon nanometer, 8- 20 parts, 0.5-4 parts of silane coupling agent KH 151, 1-2 parts of benzophenone, 1-10 parts of composite lubricant, 0.01-0.2 parts of nano silver, 0.5-5 parts of flavonol, 0.5 parts of zinc stearate -5 parts, 1-5 parts of polyacrylamide, 5-10 parts of methyl methacrylate, 1-5 parts of 2,4-dichlorobenzoyl peroxide, 6-ethoxy-2,2,4- 10-20 parts of trimethyl-1,2-dihydroquinoline. The mechanical properties, impact resistance, deformability, anti-aging performance and anti-fouling performance of the pipe made of the raw material of the invention are significantly and greatly improved.

The invention discloses a skin-care facial cleanser, comprising the following components by weight percent: 20-30 parts of salicylic acid, 5-10 parts of benzyl peroxide, 15-25 parts of glycollic acid, 5-10 parts of medicated scrubs, 5-10 parts of bamboo charcoal powder, 5-9 parts of beewax and 2000-3000 parts of deionized water. The skin-care facial cleanser disclosed by the invention is low in preparation cost, good in skin-care and face-cleaning effects, free of irritation, low in susceptibility and suitable for various skins, and face skins are not allergic after the skin-care facial cleanser is used for a long period of time.

The invention discloses a water-glass-containing compression-resistant impervious wear-resistant reinforced concrete drainage pipe and a preparation method thereof. The invention is characterized in that the drainage pipe is prepared from fly ash, mineral slag powder, metakaolin, gypsum, sodium sulfate, a naphthalene high efficiency water reducing agent, sand, gravel, a bisphenol A epoxy resin E-44, benzoperoxide, acrylic acid, N,N-dimethylethanolamine, organic montmorillonite, cement, steel fibers, calcined diatomite, steel bars, urea, sodium methylsiliconate, potassium dichromate, water glass and the like. The water-based epoxy resin is prepared by graft copolymerization, thereby obtaining the polymer-cement base material interpenetrating-network structure. The organic montmorillonite used as the filler is added into the water-based epoxy resin matrix by high-polymer solution intercalation to prepare the water-based epoxy resin / montmorillonite nano composite material. The uniform intense magnetic field is applied to the steel fiber reinforced concrete mixture to prepare the one-way-distributed steel fiber reinforced concrete, so the fibers have high utilization ratio and favorable reinforcement effect.

The invention discloses a method for preparing benzyl peroxide by adopting a toluene liquid-phase air oxidation method. Under the synergistic effect of a catalyst, an initiator and an assistant, toluene and oxygen in the air perform oxidizing reaction to generate the benzyl peroxide, the balance of reaction temperature is ensured by adopting an external circulated cooling mode, pressure balance in a toluene oxidation reactor is controlled according to the discharge amount of high-temperature compressed tail gas or nitrogen or reaction tail gas led from the upper portion of the reactor, the reaction process is full-automatically controlled, and safe, stable and continuous reaction is ensured. The oxygen content in the reaction tail gas is ensured by controlling the high-temperature compressed tail gas or nitrogen led from the lower portion of the reactor and reaction conditions, and higher toluene conversion rate is ensured. The product benzyl peroxide can serve as a raw production material of benzene-alcohol, aromatic aldehyde, aromatic acid and benzyl ester, and the method is a green and environment-friendly no-chloride involved process.