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Ca/Zn composite stabilizer, preparation method thereof and environment-friendly profile

A technology of stabilizer and antioxidant, applied in the field of plastic processing, can solve problems such as "pockmarks", organic tin containing heavy metal Sn odor, etc., and achieve the effect of promoting synergy and improving thermal stability

Inactive Publication Date: 2015-03-04
TIANJIN ZHONGCAI PROFILES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the stabilizing effect of the Ca / Zn stabilizer, the patent CN163 1963A uses organic tin to improve the stabilizing effect of Ca / Zn, but because the organic tin contains heavy metal Sn and has a large odor; people also add some acid absorbents on the basis of Ca / Zn Zeolite is used to improve the stabilization effect, but in practice, it is found that "pitting" is easy to appear on the surface of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0031] 1) Add 2kg of dibenzoylmethane HDBM, 0.5kg of β-diketone metal complex and 11kg of zinc stearate into a small mixer, control the temperature at 60°C, stir for 10 minutes, and stop mixing;

[0032] 2) Add 8kg of stearic acid, 3kg of polyethylene wax, such as Thai W112, and 2kg of calcium carbonate to the mixture obtained in step 1), control the temperature at 60°C, stir for 10min, and stop mixing;

[0033] 3) Add 14kg calcium stearate, 0.5kg pentaerythritol, 6kg hydrotalcite, 0.5kg triphenyl phosphite, and 0.5kg antioxidant 1010 to the mixture obtained in step 2), control the temperature at 80°C, and stir After 10 minutes, fully mix, cool to 30-45°C, and complete the preparation of the composite Ca / Zn stabilizer.

no. 2 example

[0035] 1) Add 5kg stearoylbenzoylmethane HSBM, 3kg β-diketone metal complex and 16kg zinc stearate into a small mixer, control the temperature at 80°C, stir for 5min, and stop mixing;

[0036] 2) Add 13kg of stearic acid, 6kg of polyethylene wax, such as Thai W110, and 2-6kg of calcium carbonate to the mixture obtained in step 1), control the temperature at 80°C, stir for 5 minutes, and stop mixing;

[0037] 3) Add 19kg calcium stearate, 5kg dipentaerythritol, 11kg hydrotalcite, 4kg trinonylphenyl phosphite and 4kg antioxidant 1076 to the mixture obtained in step 2), control the temperature at 100°C, and stir After 10 minutes, fully mix, cool to 30-45°C, and complete the preparation of the composite Ca / Zn stabilizer.

no. 3 example

[0039] 1) 4kg, 2kg of β-diketone metal complexes and 14kg of zinc stearate in a mass ratio of 1:1 in dibenzoylmethane HDBM and stearoylbenzoylmethane HSBM are added to a small mixer, Control the temperature at 70°C, stir for 8 minutes, and stop mixing;

[0040] 2) Add 10kg of stearic acid, 5kg of polyethylene wax, such as PE-WAX G-200A from Thailand, and 5kg of calcium carbonate to the mixture obtained in step 1), control the temperature at 70°C, stir for 8min, and stop mixing;

[0041] 3) 16kg calcium stearate, 3kg trimethylolpropane, 7kg hydrotalcite, 2kg phenylenedioctyl phosphite and 3kg antioxidant BHT are added to the mixture obtained in step 2), and the temperature is controlled at 92 ℃, stirring for 6 minutes, fully mixed, and then cooled to 30-45 ℃ to complete the preparation of the composite Ca / Zn stabilizer.

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Abstract

The invention discloses a Ca / Zn composite stabilizer which comprises components in parts by mass as follows: 14-19 parts of calcium stearate, 11-16 parts of zinc stearate, 2-6 parts of beta-diketone compounds, 0.5-3 parts of beta-diketone metal complexes, 8-13 parts of stearic acid, 0.5-5 parts of polyol, 6-11 parts of hydrotalcite, 0.5-4 parts of phosphite ester, 0.5-4 parts of an antioxidant, 2-6 parts of calcium carbonate and 3-6 parts of polyethylene wax. The beta-diketone metal complexes are directly added to a Ca / Zn composite stabilizer system, by means of increase of the effective concentration of the beta-diketone metal ion complexes of the stabilizer in PVC (polyvinyl chloride) thermal stabilization, the synergistic effect is promoted, and the thermal stability of the Ca / Zn composite stabilizer is improved.

Description

technical field [0001] The invention relates to the technical field of plastic processing, in particular to a composite Ca / Zn stabilizer, a preparation method thereof and an environment-friendly profile. Background technique [0002] PVC came out more than 120 years ago. Due to its poor thermal stability, heat stabilizers are often added. The earliest use was PbO, followed by lead salts, organotin, Ba / Cd, Ca / Zn and other stabilizers. Lead salt stabilizers have been mainly used in my country for a long time. Since the 1990s, the detoxification of stabilizers has mainly focused on Ca / Zn stabilizers. There is still a big gap between domestic Ca / Zn stabilizers and imported products. PVC hard products The Ca / Zn stabilizers used still rely on imports. In order to improve the stabilizing effect of the Ca / Zn stabilizer, the patent CN163 1963A uses organic tin to improve the stabilizing effect of Ca / Zn, but because the organic tin contains heavy metal Sn and has a large odor; people ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/02C08K5/098C08K5/07C08K5/00C08K5/09C08K5/053C08K5/06C08K3/26C08K5/524C08K5/526C08L27/06C08L23/06
Inventor 刘芳兴王景旺刘伟
Owner TIANJIN ZHONGCAI PROFILES
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