262 results about "Diethylene glycol dibenzoate" patented technology

Plasticizer blends comprise a triblend of diethylene glycol dibenzoate, dipropylene glycol dibenzoate, and 1,2-propylene glycol dibenzoate, in specified ratios, useful in combination with a multitude of thermoplastic polymers, thermosetting polymers, and elastomeric polymers and numerous applications, including but not limited to plastisols, adhesives, sealants, caulks, architectural coatings, industrial coatings, OEM coatings, inks, overprint varnishes, polishes, and the like. The advantages rendered by the use of the triblend depend on the type of polymer and application in which it is utilized and include among other advantages higher solvating power and lower processing time, low VOC's, reduced plasticizer freeze point, improved gelation and fusion characteristics, higher tensile strength, superior stain and extraction resistance, and improved rheology over traditional diblends of diethylene glycol dibenzoate and dipropylene glycol dibenzoate.

The invention discloses montmorillonite/isotactic polypropylene/polylactic acid composite sound absorbing cotton, which consists of a top surface layer, a back surface layer and a fiber cotton layer, wherein the fiber cotton layer is clamped and arranged between the top surface layer and the back surface layer, and the top surface layer and the back surface layer are made of non-woven fabric materials. The montmorillonite/isotactic polypropylene/polylactic acid composite sound absorbing cotton is characterized in that the non-woven fabric is prepared form the following ingredients in parts by weight by a melt blowing method: 100 parts of isotactic polypropylene, 10 to 12 parts of polylactic acid, 10 to 12 parts of montmorillonite powder, 5 to 7 parts of dilauryl thiodipropionate, 2 to 3 parts of zinc oxide, 12 to 15 parts of diethylene glycol dibenzoate, 4 to 6 parts of triethyl citrate, 2 to 3 parts of zinc chloride, 5 to 7 parts of chitosan, 2 to 3 parts of molecular sieves, 12 to 15 parts of yellow cinnamon leaf, 2 to 3 parts of rhizoma gastrodiae, 2 to 3 parts of mint, 2 to 3 parts of radix angelicae pubescentis and 4 to 5 parts of auxiliary agents. The montmorillonite/isotactic polypropylene/polylactic acid composite sound absorbing cotton has the advantages that the montmorillonite, the isotactic polypropylene and the polylactic acid are compounded for preparing the sound absorbing cotton by the melt blowing method, the production process is simple, the raw materials are easy to obtain, the cost is low, and the prepared product has the advantages that the air permeability and the oxygen permeability are good, the tensile strength and the extension degree are high, the sound absorbing effect is obvious, and the like.

The invention relates to a production method of a plasticizing agent, in particular to a production method of the plasticizing agent of DEDB. The invention is achieved as follows: taking acidum benzoicum and diglycol as the raw materials, adding a compound catalyst, adopting a solvent-free method and completing the reaction at a special temperature. The material formula comprises (by weight): the acidum benzoicum: 66.5 to 68.5 percent; the diglycol: 31.5 to 33.5 percent; the compound catalyst: 0.05 to 0.08 percent (by total feed capacity); activated carbon: 0.1 to 0.15 percent (by total feed capacity); and diatomite: 0.1 to 0.15 percent (by total feed capacity). The invention is achieved by taking the acidum benzoicum and the diglycol as the raw materials, adding the compound catalyst, adopting the solvent-free method and completing the reaction at a special temperature, thus shortening the reaction time and increasing the yield rate of finished products.

The invention relates to the field of encapsulation of electronic component, in particular relates to a flame-retardant encapsulating material applicable to electronic and electric product and a preparation method of the flame-retardant encapsulating material, solving the problems of the prior art that the fire-proofing and flame retardant performance is poor, and relatively high flame-retardant rating cannot be obtained. The material comprises a component A and a component B; in percentage by weight, the component A comprises base stock bisphenol-A epoxy resin, fire retardant, diluent diethylene glycol dibenzoate, flexibilizer dioctyl phthalate, pigment, organic silicon defoaming agent and filler silica micropowder; the component B comprises curing agent phthalic anhydride or methyl tetrahydrophthalic anhydride, curing agent eleostearate anhydride, and accelerator 2, 4, 6-tri(dimethylamino methyl) phenol; before the flame-retardant encapsulating material is used, the component A is pre-heated in an oven and then uniformly agitated in an up-to-bottom way; and the component A and the component B are uniformly mixed, so as to obtain flame-retardant encapsulating material; and then the encapsulating can be carried out. The flame-retardant encapsulating material provided by the invention is mainly applicable to insulating packaging of various electronic components such as power engine, rail transit, war industry, spaceflight, car and power.

The invention relates to a preparation method of a plasticizer, particularly a preparation method of a plasticizer diethylene glycol dibenzoate, which comprises the following steps: heating benzoic acid and diethylene glycol until the benzoic acid is dissolved, adding a catalyst to carry out reflux reaction, starting a vacuum pump, heating to 200-220 DEG C, keeping the temperature to react under reduced pressure, and stopping the reaction when no water is distilled out, thereby obtaining a diethylene glycol dibenzoate crude product; and cooling the obtained diethylene glycol dibenzoate crude product, neutralizing with an Na2CO3 water solution to remove excessive benzoic acid, washing, separating out the ester layer, and dehydrating by vacuum distillation to obtain a colorless transparent oil liquid which is the plasticizer diethylene glycol dibenzoate product. The technique is simple, does not use any water-carrying agent, continuously distils out water in the reaction under negative pressure, breaks the chemical equilibrium of the esterification reaction, shortens the reaction time, greatly enhances the benzoic acid conversion rate, has the advantages of high esterification rate (up to higher than 98%), favorable catalyst selectivity, fewer side reactions, light product color and no need of activated carbon for decolorization, and is suitable for industrial production and environment-friendly.

The invention discloses a liquid rubber modified epoxidized natural rubber cable material. The liquid rubber modified epoxidized natural rubber cable material comprises raw materials in parts by weight as follows: 80-95 parts of epoxidized natural rubber, 5-20 parts of carboxyl-terminated liquid nitrile rubber, 5-15 parts of modified starch, 2-8 parts of ultrafine acrylate rubber powder, 3-8 parts of polystyrene thermoplastic elastomer, 10-25 parts of silica, 8-35 parts of modified diatomite, 15-27 parts of tetrapod-shaped zinc oxide whiskers, 1-2.5 parts of zinc oxide, 0.8-1.3 parts of sorbic acid, 2-4 parts of stearic acid, 1-2.6 parts of sulfur, 2-2.9 parts of dicumul peroxide, 1-3.5 parts of diallyl phthalate, 2-3.5 parts of diethylene glycol dibenzoate, 2-5 parts of calcium stearate, 2-5 parts of an accelerant, 2-5 parts of an anti-aging agent and 3-7 parts of a coupling agent. The liquid rubber modified epoxidized natural rubber cable material has high strength, good anti-aging performance and long service life.

The invention belongs to the technical field of building materials and especially relates to a wear-resistant wood-plastic profile and a preparation method thereof. The wear-resistant wood-plastic profile is prepared from the following raw materials (by weight): 20-60 parts of walnut shell flour, 10-26 parts of peanut shell powder, 20-40 parts of polyethylene, 5-12 parts of glyceryl triacetate, 5-10 parts of silicone powder, 3-8 parts of polytetrafluoroethylene powder, 4-9 parts of di-n-butyl phosphate, 3-7 parts of cyclohexane dicarboxylate, 3-8 parts of diethylene glycol dibenzoate, 2-7 parts of tetramethyl divinyl disiloxane, 1-5 parts of vinyl trichlorosilane, 2-8 parts of 1,3-dimethyl-6-semicarbazide pyrimidine, 3-8 parts of alkyl glycoside, 1-5 parts of 1-vinyl imidazole and 1-6 parts of dialkyl diphenylamine. The invention also provides a preparation method of the wear-resistant wood-plastic profile. The wear-resistant wood-plastic profile has characteristics of aesthetic property, high wear resistance, waterproofness and skid resistance, durability and corrosion resistance, no release of formaldehyde and the like. In addition, the preparation technology is simple.

The invention relates to a cable material, in particular to a lightweight heat-resistant flame-retardant modified PVC resin compound-mixed cable material and a preparation method thereof. The cable material is prepared from, by weight, 55-65 parts of PVC resin, 30-40 parts of an ethylene-vinyl acetate copolymer, 0.01-0.02 part of tourmaline, 10-15 parts of expandable graphite, 5-8 parts of polytetra methylene ether glycol, 15-22 parts of aluminum silicate, 3-4 parts of eleostearic acid, 3-4 parts of hexamethyldisilazane, 22-30 parts of cotton pulp, 2-4 parts of zinc stearate, 14-18 parts of diethylene glycol dibenzoate, 8-10 parts of color master batch and 2-3 parts of an additive. The PVC resin and the ethylene-vinyl acetate copolymer are blended to serve as a resin base material, the cotton pulp subjected to modification treatment serves as a filler, and through the combination with the additive and other auxiliary raw materials for improving the machining performance and effect, the cable material can show more excellent heat-resistant flame-retardant performance than a traditional PVC resin when being used.

The invention discloses a nitrile rubber material for a high-performance engine. The nitrile rubber material comprises the following raw materials in parts by weight: 70-100 parts of nitrile rubber 3604, 20-30 parts of ethylene propylene diene monomer, 4-10 parts of organic silicon modified acrylate, 4-6 parts of polyvinyl chloride resin, 0.8-1.3 parts of stearic acid, 1.5-2.5 parts of paraffin, 40-60 parts of carbon black N550, 15-30 parts of zinc oxide whiskers, 8-12 parts of coupling agent KH-550, 13-17 parts of high styrene, 0.7-1.3 parts of trihydroxymethylaminomethane, 1.5-2.1 parts of dicumyl peroxide, 0.5-0.8 part of N,N-diphenyl-phenylene diamine, 0.3-0.5 part of antiager MB, 0.7-1 part of trimethylol-propane trimethacrylate, 1-2 parts of triallyl isocyanurate, 3-8 parts of magnesium hydrate, 1-3 parts of antimonous oxide, 8-13 parts of diethylene glycol dibenzoate and 0.5-1 part of accelerant TMTD. The nitrile rubber material for the high-performance engine disclosed by the invention is excellent in oil resistance, excellent in high temperature resistance, and good in wear-resisting property, warping strength and breaking performance, can be applied to preparation of various sealing materials inside the engines, and is long in service life.

The invention discloses single-component reaction-type polyurethane hot melt adhesive. The single-component reaction-type polyurethane hot melt adhesive is prepared from the following raw materials: polyurethane prepolymer, a chain extender, tackifying resin, a latent curing agent and filler, wherein the polyurethane prepolymer is formed by polymerizing polyalcohol with a molecular weight of 500 to 3000, polyisocyanate and a catalyst; and the raw material composition also comprises a plasticizer, wherein the plasticizer is dioctyl phthalate and/or diethylene glycol dibenzoate. The components of the single-component reaction-type polyurethane hot melt adhesive of the invention are mixed with plasticizers, the plasticizers are dioctyl phthalate and/or diethylene glycol dibenzoate, the two substances have high plasticizing efficiency for the polyurethane and low volatility and have good low-temperature flexibility; and by adding the plasticizers, the interaction between polymer macromolecular chains can be weakened, the elasticity and flexibility of the polymer materials of the polyurethane hot melt adhesive can be improved, and the high-temperature and low-temperature resistance of the hot melt adhesive can be improved.

The invention discloses a preparation method of diethylene glycol dibenzoate. Benzoic acid and diethylene glycol are used as raw materials, and a composite catalyst employed is a mixture of tetraisopropyl titanate and a solid titanium base compound. The method comprises steps of: adding by weight 66.5-68.5 parts of benzoic acid and 31.5-33.5 parts of diethylene glycol in a reaction kettle; heating; after complete dissolving of benzoic acid, adding 0.05-0.08 part of the composite catalyst; insulating at a temperature of 190-210 DEG C for 4-6 h to achieve complete reaction; after the reaction, removing alcohol by reducing temperature and pressure to obtain crude diethylene glycol dibenzoate; adding 0.1-0.15 part of diatomite and 0.1-0.15 part of activated carbon; and decolorizing and filtering to obtain the diethylene glycol dibenzoate finished product. The preparation method provided by the invention has characteristics of safe and stable technical operation, low cost, no environmental pollution, short reaction time and high yield of finished product.

A novel, low volatility, non-phthalate plasticizer/coalescent blend for use in paints and other polymeric coatings comprises a triblend of diethylene glycol dibenzoate, dipropylene glycol dibenzoate, and 1,2-propylene glycol dibenzoate. The triblend when used in a paint or other coatings achieves a low VOC paint or coating having stable viscosity after three freeze/thaw cycles and equivalent or superior wet edge/open time ratings, gloss ratings, scrub resistance and block resistance when compared to traditional coalescents, including without limitation high VOC coalescents, low VOC non-dibenzoate coalescents and other dibenzoate blends. The triblend may be used as a substitute or alternative coalescent in latex and acrylic emulsion coatings, among others, to achieve a lower VOC content without sacrificing performance properties.

The invention discloses a heat-resisting conveying belt special for a large junk and a preparation process of the heat-resisting conveying belt. According to the technical scheme, the heat-resisting conveying belt special for the large junk comprises a belt core, belt core rubber and coverage rubber. The coverage rubber comprises upper coverage rubber and lower coverage rubber. The coverage rubberis formed by polymerizing raw materials which include EPDM, chlorinated polyethylene rubber, carbon black, modified ceramic fibers, a vulcanizing agent, an accelerant, an activation agent, a plasticizer and an anti-aging agent. Ceramic fibers are immersed into impregnation liquid formed by polyethylene glycol, imvite, glycerol ester of rosin, a silane coupling agent, BMDPM and diethylene glycol dibenzoate, and the modified ceramic fibers are obtained through modification treatment. The bonding strength of the modified ceramic fibers is high, the bonding force of the modified ceramic fibers and rubber can be improved, the defect that the bonding strength of EPDM and the belt core is low can be overcome, heat resistance of the conveying belt is improved, and meanwhile the interlayer bondingstrength of EPDM and the belt core is improved.

The invention discloses a mouse-proof optical cable rubber sleeve. The mouse-proof optical cable rubber sleeve is composed of an insulating layer on the innermost layer, a sandwiched layer in the middle and a protection layer on the outermost layer, wherein the insulating layer is prepared from ethylene propylene diene monomer, silicon rubber, stearic acid, polyethylene glycol PEG4000, white carbon black, carbon black N568, carbon black N765, light calcium carbonate and paraffin oil 2280; the sandwiched layer is prepared from natural rubber, polyurethane rubber, mustard, chili, ground pepper, carbon black N550, carbon black N774, a plasticizer DEDB (Diethylene Glycol Dibenzoate), an anti-ageing agent A, a vulcanizing agent, diatomite, an accelerant TMTD (Tetramethylthiuram Disulfide) and gas-phase white carbon black; the protection layer is prepared from the ethylene propylene diene monomer, butyl rubber, fluorous rubber, chloroprene rubber, carbon black N660, carbon black N539, the accelerant TMTD, magnesium oxide and modified talcum powder. The mustard, the chili and the pepper, which have spicy and stimulating smells, are added into the sandwiched layer, so that oral mucosa and gustatory nerves of mice are strongly stimulated, and the mice reject eating, and furthermore, the mouse-proof optical cable rubber sleeve can prevent the mice from biting.

The invention belongs to the technical field of bituminous road material and relates to a high-modulus bituminous concrete additive. The high-modulus bituminous concrete additive is composed of the following materials by mass: 60-90 parts of waste polyethylene, 10-30 parts of polypropylene, 5-10 parts of ethyl acetate and 0.5-1.5 parts of additive, wherein the additive is prepared by mixing a plasticizer and a modifier according to the mass ratio of 1:(2-4), wherein the plasticizer is dioctyl phthalate, diisobutyl phthalate or diethylene glycol dibenzoate, and the modifier is 19-tert-lauryl mercaptan, isooctyl 3-mercaptopropionate, ethanethio or dodecanethiol. The additive provided by the invention is convenient to use, low in cost and stable in performance, and the track prevention performance, the low temperature anti-cracking performance, the water stability and the anti-fatigue performance of the bituminous mixture are improved. Meanwhile, the waste plastic can be effectively recycled, the advantage of ecological environmental protection is achieved, the resource waste is directly reduced, the natural landscape and the ecological environment balance are greatly kept, and good social and environmental benefits are obtained.

The invention discloses an anti-aging high-flame-retardant ethylene propylene diene monomer rubber pipe comprising the raw materials: ethylene propylene diene monomer, polyvinyl chloride, chlorinated polyethylene, zinc oxide, stearic acid, bromo-octyl-phenolic curing resin, dicumyl peroxide, modified nano-silicon dioxide, attapulgite, expandable graphite, polyacrylonitrile fiber, cerous phosphate, pentaerythritol, ammonium polyphosphate, an anti-aging agent MC, an anti-aging agent MB, zinc nitrilotiracetate, calcium nitrilotiracetate, an accelerant, diethylene glycol dibenzoate, tricresyl phosphate, and a silane coupling agent. The anti-aging high-flame-retardant ethylene propylene diene monomer rubber pipe disclosed by the invention has the advantages of high strength, excellent anti-aging and flame-retardant property and long service life.

The invention discloses a production technique of diethylene glycol dibenzoate, which comprises the following steps: putting benzoic acid, diethylene glycol and catalyst into a reactor to carry out esterification reaction, neutralizing the synthesized crude product, washing with water, stripping, decolorizing, and carrying out pressure filtration to obtain the finished product. The invention is characterized in that a vegetable oil plasticizer, which accounts for 10-30% of the finished product, is added to the decolorization product, and after the vegetable oil plasticizer and the decolorization product are evenly mixed, pressure filtration is carried out on the mixture; the weight ratio of the benzoic acid to the diethylene glycol is (1.8-2.5):1; and the catalyst accounts for 0.5-0.8% of the total amount of the benzoic acid and the diethylene glycol. Compared with the prior art, the invention lowers the production cost and reduces the environmental pollution; and oxidation technique and low-cost low-color-number vegetable oil plasticizer are added to the after-treatment process to obtain the light-color low-cost low-freezing-point diethylene glycol dibenzoate, thereby further widening the application range of the product.

The invention discloses a preparation method of a terylene low temperature dyeing carrier composition. The method comprises a step of mixing aromatic compounds with a weight fraction of 50 to 90, non-ionic surfactant with a weight fraction of 5 to 40, and an organic solvent with a weight fraction of 4 to 20; wherein the aromatic compounds are more than one of compounds (A), compounds (B), compounds (C), and diethylene glycol dibenzoate, the structures of compounds (A), (B), and (C) are represented in the description, R1 represents a C1-C4 alkyl group or benzyl group, R2 represents a C1-C4 alkyl group, R3 represents a hydrogen atom or a C1-C4 alkyl group, the nonionic surfactant is polyoxyethylene ether, and the organic solvent is an alcohol solvent and/or an alcohol-ether solvent. The preparation method has the advantages of simple operation, cleanness, and environment-friendliness. The prepared terylene low temperature dyeing carrier composition has the advantages of low cost, easy removal, high color fastness, low toxicity, and environment-friendliness.

The invention discloses a flame-retardant foamed sheet which is characterized by being prepared from the following raw materials in parts by weight: 100 parts of SG-3PVC, 5-7 parts of light calcium carbonate, 10-14 parts of titanium dioxide, 4-5 parts of azodicarbonamide, 1.4-1.6 parts of hexamine, 2.8-3.2 parts of nanometer titania, 4-6 parts of precipitated barium sulphate, 1-2 parts of sodium dodecyl benzene sulfonate, 1-2 parts of dibutyltin dilaurate, 4-5 parts of diethylene glycol dibenzoate, 2-3 parts of zinc oxide, 1-2 parts of dicumyl peroxide and 6-8 parts of modified packing. The foamed sheet has an uncommon excellent flame-retardant effect, is low in density, light in weight, sound-insulated, heat-insulated, attractive in appearance and suitable for serving as a building material and is convenient and simple in raw material source, low in production cost and suitable for large-area popularization.

The invention relates to a polyethylene powder coating and particularly relates to a magnetic polyethylene powder coating containing maleic anhydride grafted activated nano calcium carbonate and a preparation method of the polyethylene powder coating. The powder coating is prepared from the following raw materials in parts by weight: 6-10 parts of nano calcium carbonate, 2-3 parts of an aluminate coupling agent DL-411, 5-8 parts of diethylene glycol dibenzoate, 2-3 parts of polyethylene glycol, 12-16 parts of a polyurethane thermal elastomer, 2-3 parts of maleic anhydride, 1-2 parts of diethyl isopropyl benzene peroxide, 1-2 parts of nano spherical ferroferric oxide magnetic powder, 5-6 parts of pigments, 2-3 parts of an antioxidant and 40-50 parts of polyethylene. According to the coating prepared by the invention, nano calcium carbonate is activated by oxygen, and maleic anhydride is grafted on the surface of nano calcium carbonate, so that the binding force and compatibility of the raw materials and high molecular materials are improved; the doped nano spherical ferroferric oxide magnetic powder endows the material with uniform magnetism. The coating shows good flowability and adhesiveness, the strength and toughness of the sprayed coating are improved, and the coating is smooth and fine in surface, heat-resistant and stable, and has certain magnetism. The product is environmental-friendly and efficient and is excellent in coating effect.

The invention discloses an environment-friendly method for preparing a fluorine-containing polymer microporous film. The method comprises steps of mixing fluorine-containing polymer and diluents, wherein the diluents are one or more than two of citrate, p-phenyl trimellitate, and diethylene glycol dibenzoate; heating to dissolve, and defoaming to form uniform casting film liquid; processing, solidifying and molding through natural cooling or gel bath; extracting the diluents in the film holes through an extraction agent so as to obtain the fluorine-containing polymer microporous film; and separating and recycling the formed extraction agent or diluents mixture through rectification. Compared with the prior art, the method uses a thermally induced phase separation principle so as to prepare the fluorine-containing polymer microporous film which has a bicontinuous pore structure with uniform fracture surfaces, has controllable cortex structure, and has high connectivity and excellent mechanical property; on the other hand, in the process of preparing the film, environment-friendly diluents and the extraction agent or diluents are combined and used in rectification separating and recycling, so that no contaminants are discharged, and the method is environment-friendly and is economic and feasible.