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A kind of low-odor environment-friendly PVC powder coating composition and preparation method thereof

A powder coating and low-odor technology, applied in powder coatings, coatings, etc., can solve the problems of incomplete elimination of odor, different sizes, poor effects, etc., and achieves simple and easy preparation methods, high sanitation, Effect of improving low temperature resistance

Active Publication Date: 2018-03-20
CHINA PETROLEUM & CHEM CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the molecular pore size of diatomaceous earth is too wide, most of which are micron-sized, and the size of the pore size is different, while the odor molecules in PVC are mostly nano-sized.
Secondly, diatomaceous earth is easy to desorb after absorbing small odor molecules, and the effect is not good; using active oxides to eliminate acetone odor, its essence is to eliminate double bonds and generate aldehydes and carboxylic acid odor substances, but it still cannot completely eliminate odors
The above adsorption systems are not suitable for odor removal of PVC powder coatings

Method used

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  • A kind of low-odor environment-friendly PVC powder coating composition and preparation method thereof

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preparation example Construction

[0034] 2) Preparation of molecular sieves: Put NaY molecular sieves and 4A molecular sieves with a particle size of 4~5μm into a high-speed mixer in proportion to mix evenly, add polyethylene wax in proportion, and heat while mixing until the heating temperature reaches 100°C, and the molecular sieve powder begins to agglomerate Turn into small particles; stop heating and sieve the particles, and select particles with a particle size of 40-50 μm to obtain molecular sieves;

[0035] 3) Weigh the resin, plasticizer, heat stabilizer, antioxidant BHT, molecular sieve, colorant and other materials into the high and low speed mixer in proportion, stir and mix thoroughly, the stirring speed is 1000 rpm, the mixing time It takes 15 minutes. When the temperature of the mixed material reaches 120°C, it will be discharged into the low-speed mixer. When the temperature of the mixed material reaches 40~45°C, the material will be discharged into a low-odor and environmentally friendly PVC po...

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Abstract

A low-odor environment-friendly PVC powder coating composition and a preparation method thereof belong to the technical field of PVC powder coatings. The composition is composed of the following components by weight: 100 parts of PVC resin, 30-70 parts of 810 phthalate, 0.5-3.0 parts of di-n-octyltin dilaurate, 0.5-2.0 parts of antioxidant BHT, and 0.5 parts of molecular sieve ~5.0 parts, titanium dioxide 0~5.0 parts, molecular sieves are particles with a particle size of 40~50 μm, molecular sieves are heated by polyethylene wax, NaY molecular sieves and 4A molecular sieves according to the mass percentage of 1~2%, 24~25%, 72~75% Mix made. The composition of the invention has low volatility, no irritating smell, good performance in low-temperature embrittlement performance, tensile strength and elongation at break, and the preparation method of the invention is simple and easy to control, and has high production efficiency.

Description

technical field [0001] A low-odor environment-friendly PVC powder coating composition and a preparation method thereof belong to the technical field of PVC powder coatings. Background technique [0002] Plastic dipping is a method of preheating the surface-treated metal parts to the melting temperature range of the plastic, dipping the metal parts into resin powder or resin paste, and making plastic-coated metal parts after plasticizing and cooling. processing methods. This kind of powder compound formed with PVC as the base material, together with stabilizers, plasticizers, lubricants, etc., is collectively referred to as polyvinyl chloride dipped plastic compositions. Plastic-dipped products are suitable for various metal guardrails, frames, tools, the outer coating of metal cages for aquatic product breeding, and the coating of wire mesh, etc., and have broad markets in industry, agriculture and daily necessities. [0003] Due to the good oil resistance of PVC materials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D127/06C09D7/61C09D7/63C09D5/03
Inventor 孙培培李静张桦刘容德刘浩桂俊杰王晓敏盛梅王海波高磊
Owner CHINA PETROLEUM & CHEM CORP
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