Ca-Zn-Sn composite stabilizer for polyvinyl chloride and method for preparing same

A composite stabilizer and polyvinyl chloride technology, applied in the field of plastic processing, to achieve the effects of improving stabilization performance, simple production and processing technology, and easy industrial production

Active Publication Date: 2005-06-29
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For the problems existing in PVC stabilizers in the prior art, the purpose of Ca-Zn-Sn composite stabilizer for polyvinyl chloride provided by the invention and its preparation method is to solve the following technical problems

Method used

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  • Ca-Zn-Sn composite stabilizer for polyvinyl chloride and method for preparing same
  • Ca-Zn-Sn composite stabilizer for polyvinyl chloride and method for preparing same
  • Ca-Zn-Sn composite stabilizer for polyvinyl chloride and method for preparing same

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Effect test

Embodiment 1

[0033] The raw material composition of Ca-Zn-Sn stabilizer for PVC is: 1 part of Ca / Zn, 0.2 part of butyltin laurate, wherein the composite Ca / Zn is prepared by compound reaction of calcium stearate and zinc stearate, stearate Calcium acid and zinc stearate are proportioned according to the ratio of Ca and Zn elements in the stabilizer being 1:1.

Embodiment 2

[0035] The raw material composition of the Ca-Zn-Sn composite stabilizer for PVC is: 1.5 parts of Ca / Zn, 0.5 parts of dibutyltin maleate, and 0.3 parts of auxiliary stabilizer. Wherein the compound Ca / Zn is prepared by compound reaction of calcium stearate and zinc stearate, calcium stearate and zinc stearate are formulated according to the ratio of Ca and Zn elements in the product stabilizer being 1:1 Compare. The auxiliary stabilizer is a composition containing 30% of β-diketone, 40% of triphenyl phosphite, and 30% of antioxidant 1010.

Embodiment 3

[0037] The raw material composition of the Ca-Zn-Sn composite stabilizer for PVC is: 2.0 parts of Ca / Zn, 0.3 parts of tin methyl mercaptide, and 0.8 parts of auxiliary stabilizer. The compound Ca / Zn is prepared by compound reaction of calcium laurate and zinc octylate, and the ratio of calcium laurate and zinc octylate is prepared according to the ratio of Ca and Zn elements in the product stabilizer being 1:1. The auxiliary stabilizer is a composition containing 30% of β-diketone, 40% of epoxidized soybean oil, and 30% of chelating agent.

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PUM

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Abstract

The invention relates to a Ca-Zn-Sn compound thermal stabilizer for stabalizer and its preparing method, which is based on Ca St2/ZnSt2, comprised of angxiliary stabalizer and orgnic tin, with the main components: Ca/Zn compound of zincate and polyvinyl chloride-stabalizer portion and orgic tin 0.1-0.3 portion. The invention has outstanding thermal stabalization and processcable performance, increases thermal stabalization effect of thermal stabalizer, anlarge its application range, reduce the quantity of organic tin and decreases the productive cost.

Description

1. Technical field [0001] The present invention relates to plastic processing technology, and more specifically relates to a stabilizer used in polyvinyl chloride (abbreviated as "PVC") plastic processing and its preparation process. 2. Background technology [0002] PVC came out more than 120 years ago. Due to poor thermal stability and processing difficulties, it was not until 1930 that the copolymerization method and the appearance of various additives such as heat stabilizers, light stabilizers, fillers, plasticizers, and lubricants were invented. The above shortcomings After being overcome, PVC becomes an important material. The earliest stabilizer used was lead oxide, followed by basic lead salts, metal soaps, organic tin, organic antimony, rare earth and other stabilizers. Although they have good thermal stability for PVC, most of them have Toxicity, so its application is limited, and the environmental pollution and public hazards caused by its production and use can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/08C08L27/06
Inventor 郭少云许家友王明
Owner SICHUAN UNIV
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