A kind of pvc color composition
A composition and color technology, applied in the field of polymer materials, can solve problems such as aging, discoloration and deformation, and achieve the effects of long stability time, improved physical properties, and improved impact resistance
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preparation example 1
[0027] Preparation example 1 (preparation of toughening agent)
[0028] Prepared by emulsion polymerization method: 100 parts by weight of butadiene, α-methylstyrene and maleic anhydride, 0.1-1 part of initiator, 2-10 parts by weight of emulsifier, 100-300 parts by weight of deionized water, 0.1-10 parts by weight of the joint agent, nitrogen protection, stirring, and polymerization at 50-85 ° C for 12-24 hours to obtain butadiene-α-methylstyrene-maleic anhydride copolymer microspheres, the emulsifier is potassium oleate, Potassium stearate, disproportionated potassium abietate, sodium dodecylbenzenesulfonate or their complexes; the initiator uses potassium persulfate or dicumyl hydroperoxide-ferrous sulfate composite initiation system; crosslinking agent is divinylbenzene or ethylene glycol dimethacrylate;
[0029] The graft polymerization of octadecyl methacrylate in the outer layer adopts the emulsion polymerization method: in the reactor, add the following materials accor...
preparation example 2
[0030] Preparation example 2 (preparation of enhancer)
[0031] Add 50 parts each of needle-shaped wollastonite and flat glass fiber and decane to a high-speed mixer, mix and heat up to 50-80 degrees, add a mixture of low-temperature acrylate waterproof emulsion and water, control the temperature at 90-120 degrees, and react After 1 hour, mix the above product in a cold mixer at a temperature of 30-50 degrees for 1-2 hours, discharge and sieve to obtain the required reinforcing agent.
[0032] Low-temperature acrylate waterproof emulsion can adopt pre-emulsification process, the emulsifier is sodium lauryl sulfate, the monomer is a mixture of butyl acrylate and isooctyl acrylate, 1,4-butanediol acrylate is used as a crosslinking agent, persulfuric acid Potassium is used as an initiator, and a low-temperature acrylate waterproof emulsion is prepared by a conventional emulsion polymerization process.
[0033] The detection method or standard that embodiment is used is:
[0034...
Embodiment 1
[0036] A PVC color composition, characterized in that it contains the following raw materials in parts by mass: 70 parts of PVC resin, 1.5 parts of stabilizer, 10 parts of toughening agent, 100 parts of reinforcing agent, 0.3 parts of lubricant, 5 parts of microemulsion, pigment 0.1 parts, where the stabilizer is a 1:1 mixture of tris(2-hydroxyethyl)amine and 2-acetylpyridine, and the toughening agent is butadiene, α-methylstyrene, maleic anhydride and methacrylic acid Octadecyl ester core-shell structure copolymer, the reinforcing agent is acicular wollastonite and flat glass fiber as the core material, the surface is coated with low-temperature acrylate emulsion as the shell particles, the lubricant is paraffin, and the microemulsion is The microemulsion is obtained by mixing commercially available weather-resistant self-cleaning emulsion and luminescent material particles. The mixing ratio is 2 parts of luminescent material particles per 100 parts of weather-resistant self-c...
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