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Application of environment-friendly Ca-Zn composite heat stabilizer in polyvinyl chloride (PVC) products

A technology of calcium-zinc composite heat stabilizer, which is applied in the field of application of environment-friendly calcium-zinc composite heat stabilizer in PVC products, can solve the problems of poor effect of metal soap, high cost of organotin, and low price, and achieve high thermal stability. Stabilize performance and improve the effect of synergy

Active Publication Date: 2013-01-30
NANTONG XINBANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organotin has high cost and is not widely used in use
Metal soaps are relatively cheap, especially calcium and zinc soaps are non-toxic and environmentally friendly, and are widely used in stabilizers. However, since metal soaps are used alone, the effect is poor, so it is necessary to compound the zinc soaps to obtain better results. Excellent heat stabilizer, better used in the field of PVC processing
[0006] Through research and development, our company has produced a new type of calcium-zinc composite heat stabilizer composition. There is no report on this stabilizer at present, and a patent has been applied for

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment l

[0026] The raw material composition of environmentally friendly calcium-zinc composite heat stabilizer for PVC is: 27 parts of di-n-octyl phthalate, 16 parts of zinc stearate, 13 parts of calcium stearate, 3 parts of magnesium stearate, and 5 parts of aluminum hydroxide , 7 parts of paraffin, 2 parts of antioxidant, 27 parts of activated calcium carbonate.

Embodiment 2

[0028] The raw material composition of environmentally friendly calcium-zinc composite heat stabilizer for PVC is: 31 parts of dioctyl phthalate, 13 parts of zinc stearate, 8 parts of calcium stearate, 3 parts of magnesium stearate, and 5 parts of aluminum hydroxide , 7 parts of paraffin, 2 parts of antioxidant, 31 parts of activated calcium carbonate.

Embodiment 3

[0030] The raw material composition of environmentally friendly calcium-zinc composite heat stabilizer for PVC is: 27 parts of di-n-octyl phthalate, 16 parts of zinc stearate, 13 parts of calcium stearate, 3 parts of magnesium stearate, and 5 parts of aluminum hydroxide , 7 parts of paraffin, 2 parts of antioxidant, 27 parts of activated calcium carbonate.

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PUM

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Abstract

The invention relates to the application of an environment-friendly Ca-Zn composite heat stabilizer in polyvinyl chloride (PVC) products; the composite heat stabilizer takes zinc stearate, calcium stearate and di-n-octyl phthalate as foundation and comprises auxiliary stabilizer, lubricating agent and the like. The composite heat stabilizer is environment-friendly, non-toxic, efficient, low in cost and good in plasticity, and has good heat stability and processability in the processing process of PVC, thus having wide application prospect.

Description

technical field [0001] The invention relates to the application of an environment-friendly calcium-zinc composite heat stabilizer in PVC products. Background technique [0002] Polyvinyl chloride plastic has the advantages of self-extinguishing, flame retardant, wear-resistant, high strength, good electrical insulation and chemical stability, etc., and it is cheap and widely used. However, PVC has poor stability and needs to be processed during processing. Add a certain amount of heat stabilizer to inhibit its degradation. Currently, the heat stabilizers used for PVC mainly include lead salts, metal soaps, organotins, rare earths and composite heat stabilizers. [0003] Lead salt stabilizers are the earliest developed PVC heat stabilizers with better stabilizing effects, but long-term contact with lead-containing products can cause contact pollution and poisoning. Therefore, the use of lead heat stabilizers is strictly limited. [0004] In the face of increasingly stringen...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/02C08K5/098C08K3/26C08K3/22
Inventor 周松涛陆爱梅段辉丽
Owner NANTONG XINBANG CHEM
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