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Plastisol for automobile chassis and preparation method of plastisol

A technology of automobile chassis and plastisol, applied in the direction of polyamide coating, coating, etc., can solve the problems that the sealant is difficult to achieve the sealing effect, affects the body of the operator, and the shrinkage of the bubble volume, and achieves low cost, broad development scenarios, and solidification fast speed effect

Inactive Publication Date: 2015-11-04
韩功篑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before the 1980s, the biggest disadvantage of the sealant (mainly neoprene, nitrile rubber and alkyd resin) used in the automobile industry was that it contained benzene solvents, which were very toxic, affecting the health of operators and polluting the environment.
In addition, during the curing process of the glue, due to the volatilization of the solvent, bubbles and volume shrinkage will occur, making it difficult for the sealant to achieve the sealing effect.

Method used

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  • Plastisol for automobile chassis and preparation method of plastisol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] By weight, weigh 2 parts of low-molecular-weight polyamide tackifier and disperse at high speed in 35.8 parts of DOP to uniformity, then add 9.8 parts of PVC paste resin (P440), 1 part of vinyl chloride-vinyl copolymer resin (KCM-12 ), 5 parts of heavy CaCO with a mesh number of 1250 3 , 22 parts of nano-active CaCO 3 , 0.5 parts of ZnO with 200 meshes, 1 part of CaO, 1 part of tribasic lead sulfate stabilizer, at 1200rpm, turn 30s, at 2200rpm, turn 90s, at 3000rpm, turn 60s (make sure fineness below 120um); finally add 1.5 parts of viscosity reducer (D-80), at 3000rpm, turn for 60s; then 15min under the condition of vacuum degree of 0.085MPa; mature at room temperature for 24h to obtain the experimental PVC car Anti-stone glue is used for the chassis. Bake at 160°C for 30 minutes and cool at room temperature for 4 hours.

Embodiment 2

[0032] By weight, weigh 2 parts of low-molecular-weight polyamide tackifier and disperse at high speed in 37 parts of DOP until uniform, then add 12 parts of PVC paste resin (P440), 2 parts of chloro-vinegar copolymer resin (KCM-12 ), 10 parts of heavy CaCO with a mesh number of 1250 3 , 23 parts of nano-active CaCO 3 , 0.5 parts of ZnO with 200 meshes, 1 part of CaO, 1 part of tribasic lead sulfate stabilizer, at 1200rpm, turn 30s, at 2200rpm, turn 90s, at 3000rpm, turn 60s (make sure fineness below 120um); finally add 1.3 parts of viscosity reducer (D-80), turn 60s at 3000rpm; then 15min under vacuum of 0.085MPa; ripen at room temperature for 24h to obtain experimental PVC car Anti-stone glue is used for the chassis. Bake at 160°C for 30 minutes and cool at room temperature for 4 hours.

Embodiment 3

[0034]By weight, weigh 2 parts of low-molecular-weight polyamide tackifier and disperse at high speed in 36.5 parts of DOP until uniform, then add 20 parts of PVC paste resin (P440), 16 parts of heavy CaCO with a mesh number of 1300 3 , 23 parts of nano-active CaCO 3 , 0.5 parts of ZnO with 250 meshes, 1 part of CaO, 1 part of tribasic lead sulfate stabilizer, at 1200 rpm, turn 30s, at 2200rpm, turn 90s, at 3000rpm, turn 60s ( Make sure that the fineness is less than 120um); finally add 1.5 parts of viscosity reducer (D-80), at 3000rpm, rotate for 60s; then under the condition of vacuum degree of 0.085MPa for 15min; ripen at room temperature for 24h to obtain PVC for experiment Anti-stone glue for automobile chassis. Bake at 160°C for 30 minutes and cool at room temperature for 4 hours.

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Abstract

The invention discloses plastisol for an automobile chassis and a preparation method of the plastisol. PVC (polyvinyl chloride) paste resin and DOP (dioctyl phthalate) are taken as main materials, and the plastisol comprises components in parts by weight as follows: PVC paste resin, DOP, KCM-12, heavy calcium carbonate, a lead sulfate tribasic stabilizer, ZnO, low-molecule polyamide, nano activated calcium carbonate, CaO and a viscosity reducer.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a method for preparing automobile chassis plastisol with PVC paste resin as the main raw material. Background technique [0002] The application of adhesives in the automotive industry began in the 1940s. The purpose of developing adhesives at the beginning was to seal and prevent rust. Since the 1960s, with the improvement of the production process of the automobile industry and the need for comfort and luxury of cars, the automobile industry began to use a large number of sealants and adhesives. Before the 1980s, the sealants used in the automotive industry (mainly neoprene, nitrile rubber and alkyd resin) had the biggest disadvantage of containing benzene solvents, which were very toxic, affecting the health of operators and polluting the environment. In addition, during the curing process of the glue, due to the volatilization of the solvent, bubbles and volume sh...

Claims

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Application Information

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IPC IPC(8): C09D127/06C09D177/00C09D7/12
Inventor 韩功篑
Owner 韩功篑
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