275 results about "OCTYL ACRYLATE" patented technology

This invention relates to a core/shell impact modifier having as a core a copolymer or terpolymer having from 25 to 75 percent by weight of 2-ethylhexyl acrylate (2-EHA) monomer units with from 25 and 75 percent by weight of n-octyl acrylate (n-OA) monomer units. This core-shell impact modifier is used in performance polymers to improve low temperature impact performance.

The invention discloses a hydrophobic associated polymer modified magnetic nano-thickener and a preparation method thereof. The hydrophobic associated polymer modified magnetic nano-thickener is a core-shell structured nanocomposite prepared by taking nanometer Fe3O4 as the core, modifying the Fe3O4 through oleic surfactants and grafting an amphiphilic high-polymer compound, wherein the amphiphilic high-polymer compound is a hydrophobic associated water-soluble ternary polymer prepared by copolymerizing a water-soluble monomer, a heat-resistant and anti-salt monomer and a hydrophobic monomer,the water-soluble monomer is acrylamide, the heat-resistant and anti-salt monomer is 2-acrylamide-2-methylpropanesulfonic acid, and the hydrophobic monomer is styrene, n-octyl acrylate or octadecyl dimethyl allyl ammonium chloride. The hydrophobic associated polymer modified magnetic nano-thickener helps solve the problems of high cost and poor thickening performance of nano-thickeners and reutilization difficulty of polymer thickeners and is an efficient thickening and recycling integrated nano-thickener obtained by modifying low-toxicity magnetic nanometer materials and amphiphilic high-polymers; the preparation method of the hydrophobic associated polymer modified magnetic nano-thickener has no need for high-temperature and high-pressure reaction conditions and helps reduce the operation difficulty and the production cost.

The invention discloses a water emulsion type plant adhesive and a preparation method thereof, belonging to the field of adhesives. The adhesive consists of styrene or methyl methacrylate, vinyl acetate, butyl methacrylate, butyl acrylate, iso-octyl acrylate, acrylic acid, crosslinking monomer, adhesion reinforcing monomer, emulsifier, initiator, tert-butyl hydroperoxide, buffer agent, pH regulator and deionized water; and through a seeded emulsion polymerization technology, the homopolymer of styrene or methyl methacrylate is synthesized firstly as seed, the pre-emulsion is dropwise added to the seed polymerization particles to synthesize a shell polymer, and finally a core-shell structure with a hard core and a soft shell is formed. After the film formation of the polymer particles, the initial adhesion is high, and the sticking of glass beads on an adhesive layer is facilitated; and moreover, the cohesion is great, thus no adhesive residue is transferred to the base fabric during the transfer of the plant particles, and the washing effect of the reflective fabric is improved.

The invention discloses acrylic epoxy core-shell emulsion and a preparation method thereof. The acrylic epoxy core-shell emulsion is prepared from the following components in parts by mass: 150 to 300 parts of water, 30 to 60 parts of styrene, 30 to 60 parts of methyl methacrylate, 20 to 75 parts of iso-octyl acrylate, 20 to 75 parts of butyl acrylate, 0.5 to 5 parts of acrylic acid, 0.5 to 5 parts of methacrylic acid, 5 to 10 parts of epoxy resin, 5 to 20 parts of an anionic emulsifier, 1 to 5 parts of a cross-linking monomer, 5 to 15 parts of a waterborne epoxy curing agent, 0.5 to 2 parts of an initiator, 0.1 to 0.5 part of an oxidant and 0.1 to 0.5 part of a reductant. According to the acrylic epoxy core-shell emulsion disclosed by the invention, acrylic emulsion is combined with the epoxy resin, so that the disadvantages of easiness in yellowing, poor damp heat resistance, poor toughness and the like of the epoxy resin are remedied, and the properties of hardness, wear resistance and the like of the acrylic emulsion are increased.

The invention discloses synthetic styrene-acrylic latex, which includes components by weight: 2-4 parts of crylic acid, 5-8 parts of iso-octyl acrylate, 10-15 parts of styrene, 6-9 parts of butyl acrylate, 0.4-0.8 part of emulsifying agent, 0.1-0.4 part of ammonium persulfate and 65-80 parts of ionic water. Because soft monomer and hard monomer proportion MAA:St:BA is 36:25:36, the obtained emulsion has high hardness, and good anti-aging performance, when amount of seed emulsion is 10-12%, comprehensive properties of the obtained emulsion are best, and proper amount of carboxyl functional monomer is added to significantly improve polymerization stability of the emulsion, calcium ionic stability, emulsion viscosity and film water absorption rate.

The invention relates to the technical field of adhesive tapes, and particularly relates to a termination adhesive tape and a manufacture method thereof. The termination adhesive tape comprises a base tape and a glue layer located on the base tape, wherein the glue layer is an acrylic glue layer, which is composed of the following raw materials in parts by weight: 1-5 parts of butyl acrylate, 5-12 parts of vinyl acetate, 40-60 parts of ethyl acetate, 20-35 parts of iso-octyl acrylate, 0.5-2 parts of hydroxyethyl methacrylate, 1-3 parts of acrylic acid, 2-4 parts of toluene and 0.1-0.4 part of benzoyl peroxide. The manufacture method sequentially comprises the following steps: A. preparing the acrylic glue: titrating toluene-dissolved benzoyl peroxide used as an initiator to a mixed solution of butyl acrylate, vinyl acetate, ethyl acetate, iso-octyl acrylate, hydroxyethyl methacrylate and acrylic acid at the temperature of 80 DEG C, and ensuring the titration time of 2 hours and self-reaction time of 2.5 hours; and B. applying the acrylic glue on the base tape, sequentially drying, cooling and coiling. The termination adhesive tape provided by the invention has the advantages of low cost, beautiful appearance, simple manufacture process and good electrolyte resistance.

The invention provides modified white latex and a preparation method thereof. The modified white latex is prepared from, by weight, 100 parts of monomer mixture, 5-10 parts of protective colloid, 0.2-5.0 parts of chain transfer agent, 1.0-5.0 parts of plasticizer, 0.6-1.2 parts of emulsifier, 1.0-2.0 parts of buffering agent, 0.6-0.9 part of initiator and 100-120 parts of water. The monomer mixture comprises main monomers and functional monomers. The weight of main monomers accounts for 80%-95% of the total quantity of the monomer mixture. The main monomers are vinyl acetate, and the functional monomers comprise iso-octyl acrylate and vinyl versatate. The water tolerance and bonding performance of the white latex are improved, and the prepared white latex has the advantages that a coating is good in water tolerance and high in bonding strength.

The invention relates to a method for loading drugs on a drug eluting balloon catheter. The method comprises the following steps: (1) swelling a balloon for 0.5-3 hours; (2) spraying a mixed liquid composed of therapeutic drugs, additives and a solvent onto the surface of the swelled balloon by adopting a vacuum spraying technology, and naturally drying by air for 10-30 minutes, wherein the weight ratio of the solvent, the therapeutic drugs and the additives in the mixed liquid is (10-90) to (0.5-30) to (5-60); and the solution for swelling the balloon in the step (1) is any one or more of methyl formate, ethyl acetate, ethyl formate, methyl acetate, propyl formate, methyl propionate, ethyl propionate, phenyl acetate, n-octyl acrylate and methyl benzoate. According to the method for loading drugs on the drug eluting balloon catheter, a drug coating can be uniform and firm, and drugs can be released quickly and stably.

The invention discloses amphiphilic copolymer dispersant, a preparation method and application.Firstly, a water-alcohol solution is configured, chain transfer and polyvinyl alcohol is added for preheating, then initiator, methacrylic acid, iso-octyl acrylate and a functional monomer are added, after a reaction is conducted, neutralization reagent with the carboxyl carboxyl being 80-100% is added, then pressure reduction, distillation and alcohol removal are conducted, and after pH is adjusted, liquid dispersant is obtained; the liquid dispersant is dried, and solid dispersant is obtained; the functional monomer is hydroxyethyl acrylate or sodium ethylenesulphonate or combination of the hydroxyethyl acrylate and the sodium ethylenesulphonate, and the functional monomer is composed of, by mass, 20-80 parts of methacrylic acid, 10-50 parts of iso-octyl acrylate, 10-40 parts of hydroxyethyl acrylate and 10-20 parts of sodium ethylenesulphonate.According to the preparation method, a water-alcohol system is adopted, distilled and recovered solvent can be directly used without being processed, emission of waste water, waste gas and solid waste is avoided, and the production cost is lowered.The dispersant prepared from the method is good in dispersing agent, and suspension percentage can reach 98.5%.

The invention belongs to the field of latex coatings, and particularly relates to low-emulsion-addition and high-scrubbing-resistance water-based interior wall emulsion and preparation thereof. The water-based interior wall emulsion is prepared from the following raw materials in parts by weight: 10 to 25 parts of styrene, 5 to 20 parts of butyl acrylate, 5 to 20 parts of iso-octyl acrylate, 0.5 to 5 parts of an alkyl carboxylic acid cross-linking monomer, 0.5 to 5 parts of siloxane, 1 to 5 parts of organic matter oil, 1.0 to 2.5 parts of an emulsifier, 0.1 to 0.5 part of persulfate and 50 to 55 parts of water. The prepared emulsion has extremely high wetting, dispersing and wrapping capability for a pigment filler, so that a latex paint obtained under the condition of low emulsion addition is endowed with high scrubbing resistance.

The invention discloses a heat dissipation adhesive tape applied to an electronic device, which is characterized by comprising a PET (polyethylene terephthalate) thin film with the thickness of 0.004 mm to 0.025 mm, wherein the lower surface of the PET thin film is coated with a heat conduction adhesive layer; the heat conduction adhesive layer is prepared from the following components in part by weight by baking after mixing: 100 parts of acrylic ester adhesive, 50 to 150 parts of graphite powder, 200 to 300 parts of solvent, 0.1 to 1 part of curing agent and 0.01 to 0.1 part of coupling agent; and the acrylic ester adhesive consists of the following components in part by weight: 100 parts of butyl acrylate, 0.1 to 1 part of benzoyl peroxide, 50 to 150 parts of iso-octyl acrylate, 2 to 5 parts of acrylic acid, 10 to 30 parts of methyl methacrylate, 0 to 10 parts of vinyl acetate and 0.1 to 1 part of 2-hydroxyethyl methacrylate. According to the invention, the effect that thermal conductivity is improved in both length and thickness directions is ensured; uniformity of thermal conductivity of the adhesive tape is realized; not only is the heat dissipation adhesive tape beneficial for dissipating heat, but also local overheating of the adhesive tape is avoided; and performance and service life of the product are improved.

The invention relates to a PVC auxiliary agent with good weathering resistance, shock resistance and economical efficiency, which is characterized in that: the PVC auxiliary agent is a copolymer with a nuclear shell structure, wherein, a nuclear layer of the PVC auxiliary agent is formed by emulsion polymerization of butyl acrylate, chlorinated polyethylene and 2-ethyl hexyl acrylate under the protection of a surfactant and nitrogen and through initiation of an initiator, and a core shell is formed by continuous emulsion polymerization and grafting reaction of methyl methacrylate on the nuclear layer. By adoption of the total weight of a monomer polymer as 100 percent, the butyl acrylate occupies 30 to 40 percent; the chlorinated polyethylene occupies 30 to 40 percent; the 2-ethyl hexyl acrylate occupies 15 to 35 percent; and the methyl methacrylate occupies 5 to 20 percent. The PVC auxiliary agent has superior shock resistance and weathering resistance and simultaneously has superior powder fluidity, and the shock resistance of the PVC auxiliary agent is higher than that of MBS and acrylic ester shock modifiers which are widely applied in the industry.

The invention relates to the technical field of lithium battery materials, and in particular relates to special-purpose acrylic glue of a lithium battery and a preparation method thereof. The special-purpose acrylic glue of the lithium battery comprises the following materials in percentage by weight: 20%-40% of iso-octyl acrylate, 5%-10% of butyl acrylate, 5%-10% of vinyl acetate, 0.5%-3% of acrylic acid, 5%-10% of rubber, 1%-5% of pentaerythritol trimethyl acrylate, 0.5%-2% of azodiisobutyronitrile and 40%-60% of ethyl ester. An adhesive tape which is prepared by using the glue does not lose viscosity due to chemical reaction after being soaked in electrolyte, and can keep good viscosity, so that a metal strap of a lug can be effectively fixed, and the metal strap of the lug is enabled to be not infiltrated by the electrolyte, thereby prolonging the service life of the battery and eliminating potential safety hazards. Besides, the glue can resist a high temperature of 150 DEG C at most, so that the battery can keeping a good working state under the high-temperature condition, the service life of the battery is prolonged, and the potential safety hazards are eliminated.

The invention discloses water-based acrylate emulsion for water-based woodware paint and a preparation method thereof. The water-based acrylate emulsion is prepared from the following materials in parts by weight: 0.1-5 parts of butyl acrylate, 10-30 parts of methyl methacrylate, 5-15 parts of iso-octyl acrylate, 3-15 parts of oligomer, 0.1-3 parts of an emulsifying agent, 0.1-5 parts of crosslinking monomer, 0.05-0.2 part of a chain transferring agent, 0.1-5 parts of carboxylic monomer, 0.1-0.3 part of persulfate, 1.4-3 parts of ammonia water, 0.1-5 parts of adipic acid dihydrazide and 43-67 parts of water. The preparation process comprises the steps of emulsifying, polymerizing and discharging. The preparation method disclosed by the invention has the advantages of simple equipment, convenience in operation, low cost and short period. The prepared emulsion has the characteristics of low film-forming temperature, high paint-film fullness and good cohesion resistance and has good application prospect in the field of the water-based woodware paint.

A preparation method of an emulsion type pressure-sensitive adhesive comprises, by weight, 60-65 parts of a soft monomer, 20-25 parts of iso-octyl acrylate, 10-15 parts of a hard monomer, 1-3 parts of acrylic acid, 100 parts of deionized water, 0.1-0.2 parts of dodecyl mercaptan, 0.4-0.5 parts of an initiator, 0.2-0.5 parts of sodium bicarbonate, 0.8-1.2 parts of an anionic emulsifier, 1.8-2.2 parts of a nonionic emulsifier, and a proper amount of ammonia water, wherein the soft monomer is selected from one or a mixture of two of butyl acrylate and ethyl acrylate; the hard monomer is selected from one or a mixture of more of vinyl acetate, styrene and methyl methacrylate; the anionic emulsifier is one or a combination of more of CO-436, k-12 and DB-45; and the nonionic emulsifier is one or a combination of two of OP-10 and TA300-70. The preparation method adopting a seed emulsion technology makes an emulsion have good stability, narrow particle size distribution and easy control property, and the pressure-sensitive adhesive obtained in the invention improves the initial adhesion and the peel strength under large permanent adhesion.

A preparation technology of an acrylate adhesive comprises the following steps: a, raw materials are taken in a weight ratio; b, part of butyl acrylate, iso-octyl acrylate and ethyl acetate are taken and added to a reactor and stirred; c, part of acrylic acid and 2-hydroxyethyl acrylate are taken and added to the reactor in the step b and stirred; d, part of butyl acrylate, ethyl acetate, acrylic acid and 2-hydroxyethyl acrylate are taken and added to the reactor in the step c and stirred; e, an initiator is taken, divided into 6 parts and dissolved in ethyl acetate respectively, six solutions are added to the reactor in the step d sequentially, and after addition, the mixture is stirred; f, resin is taken and dissolved in ethyl acetate, the mixture after dissolution is added to the reactor in the step e and stirred, and the acrylate adhesive is obtained. According to the preparation technology, a non-toluene solvent is used, environment-friendliness is realized, the technology is optimized, the polymer dispersion is improved, and a down-stream product meets the environmental protection requirements for low VOC (volatile organic compounds) quantity and low total carbon on the premise that the performance is guaranteed.

The invention discloses an elastic emulsion used to cure construction putty and a preparation method thereof. The elastic emulsion contains the components with the following weight portion: 80 to 100 portions of methyl methacrylate, 0 to 60 portions of styrene, 70 to 90 portions of butyl acrylate, 135 to 165 portions of iso-octyl acrylate, 3 to 11 portions of acrylic acid, 0.2 to 1.2 portions of anionic emulsifier, 0.6 to 2.6 portions of non-ionic emulsifier, 1.0 to 2.2 portions of reactive emulsifier, 1.0 to 2.2 portions of buffer, 1.6 to 2.5 portions of initiator, 0.4 to 1.2 portions of sodium formaldehyde sulfoxylate, 0.4 to 1.2 portions of tert-butyl hydroperoxide, 2.0 to 6.0 portions of pH value regulator, 0.4 to 1.2 portions of defoamer, 0.4 to 1.2 portions of thickener, and 290 to 350 portions of water. The invention is rationally designed, the process is simple, putty layer cured by the product has high anti-cracking and dynamic anti-cracking performance at the early stage, which meets the needs of the construction industry.