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A kind of pvc environment-friendly calcium zinc stabilizer

A technology of calcium-zinc stabilizer and main stabilizer, applied in the field of materials, can solve the problems of poor stability of calcium-zinc stabilizer and narrow adjustment degree of plasticization, and achieve wide adjustment range of plasticization degree, high internal substance and bright appearance. Effect

Active Publication Date: 2021-12-28
杭州凌洲塑胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the environment-friendly liquid calcium-zinc stabilizer has poor stability and narrow degree of plasticization regulation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A PVC environment-friendly calcium-zinc stabilizer, comprising the following components in parts by weight: 20 parts of calcium salt main stabilizer, 20 parts of zinc salt main stabilizer, 20 parts of modified hydrotalcite, 15 parts of lubricant, modified halloysite 8 parts of nanotubes, 3 parts of antioxidant, 3 parts of auxiliary stabilizer and 3 parts of ultraviolet absorber.

[0031] Wherein, the calcium salt main stabilizer is calcium stearate, the zinc salt main stabilizer is zinc stearate, and the hydrotalcite is MgO / Al 2 o 3 Magnesium-aluminum binary hydrotalcite with a molar ratio of 4:1, the lubricant is butyl stearate, and the antioxidant is n-octadecyl propanoate carbon alcohol ester, the auxiliary stabilizer is dibenzoylmethane and dehydroacetic acid with a mass ratio of 1:2, and the ultraviolet absorber is ultraviolet absorber UV-9.

[0032] The modified halloysite nanotube is a surface-modified halloysite nanotube of vinyl tris (β-methoxyethoxy) silane,...

Embodiment 2

[0041] A PVC environment-friendly calcium-zinc stabilizer, comprising the following components in parts by weight: 30 parts of calcium salt main stabilizer, 10 parts of zinc salt main stabilizer, 25 parts of modified hydrotalcite, 10 parts of lubricant, modified halloysite 10 parts of nanotubes, 5 parts of antioxidant, 1 part of auxiliary stabilizer and 1 part of ultraviolet absorber.

[0042] Wherein, the calcium salt main stabilizer is calcium laurate, the zinc salt main stabilizer is zinc laurate, and the hydrotalcite is MgO / Al 2 o 3 The magnesium-aluminum binary hydrotalcite with a molar ratio of 4.3:1, the lubricant is solid paraffin, the antioxidant is tris[2,4-di-tert-butylphenyl]phosphite, and the auxiliary stabilizer is a mass ratio of 1 : 2 dibenzoylmethane and ethyl acetoacetate, the ultraviolet absorber is ultraviolet absorber UV-531.

[0043] The modified halloysite nanotube is a surface-modified halloysite nanotube of gamma-glycidyl propyl-trimethoxysilane, and...

Embodiment 3

[0052] A PVC environment-friendly calcium-zinc stabilizer, comprising the following components in parts by weight: 10 parts of calcium salt main stabilizer, 30 parts of zinc salt main stabilizer, 15 parts of modified hydrotalcite, 20 parts of lubricant, modified halloysite 5 parts of nanotubes, 3 parts of antioxidant, 5 parts of auxiliary stabilizer and 4 parts of ultraviolet absorber.

[0053] Wherein, the calcium salt main stabilizer is calcium stearate, the zinc salt main stabilizer is zinc stearate, and the hydrotalcite is ZnO / MgO / Al 2 o 3 Zinc-magnesium-aluminum ternary hydrotalcite with a molar ratio of 1:2:1, the lubricant is paraffin, and the antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] Pentaerythritol ester, the auxiliary stabilizer is dibenzoylmethane and ethyl acetoacetate with a mass ratio of 1:1, and the ultraviolet absorber is ultraviolet absorber UV-327.

[0054] The modified halloysite nanotube is a surface-modified halloysite nan...

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Abstract

The invention relates to the technical field of materials, and discloses a PVC environment-friendly calcium-zinc stabilizer. The PVC environmentally friendly calcium-zinc stabilizer comprises the following parts by weight: 10-30 parts of calcium salt main stabilizer, 10-30 parts of zinc salt main stabilizer, 15-25 parts of modified hydrotalcite, 10-20 parts of lubricant, 5-10 parts of modified halloysite nanotubes, 1-5 parts of antioxidant, 1-5 parts of auxiliary stabilizer and 1-5 parts of ultraviolet absorber. The PVC environment-friendly calcium-zinc stabilizer of the invention has high stability, strong initial tinting strength and good precipitation resistance, and overcomes the defect of easy precipitation in the traditional calcium-zinc processing process. The PVC environment-friendly calcium-zinc stabilizer of the present invention has a wide adjustment range of the degree of plasticization for different products, and overcomes the disadvantage that the plasticization of the traditional calcium-zinc stabilizer is early and fast. The PVC environment-friendly calcium-zinc stabilizer of the invention has high weather resistance, which is comparable to the weather resistance of the traditional lead salt system, and meets the requirements for outdoor use of PVC products.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a PVC environment-friendly calcium-zinc stabilizer. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose plastics in the world. It has the advantages of high strength, low price, good chemical corrosion resistance, good electrical insulation and difficult to burn. The special structure of PVC makes it easy to remove the hydrogen chloride on the molecule when it is processed under high temperature and high shear conditions, resulting in degradation of the polymer, resulting in discoloration of the product and decline in the mechanical properties of the product, affecting its service life. Therefore, it is necessary to add heat stabilizers to increase its stability. [0003] The most widely used heat stabilizers in traditional PVC production mainly include lead salts and organotin, but there are problems such as high toxicity and high price. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L91/06C08K13/06C08K9/06C08K7/26C08K3/22C08K5/098C08K5/101
Inventor 潘利民项义崇
Owner 杭州凌洲塑胶科技有限公司
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