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Environment-friendly transparent zinc-based heat stabilizer for PVC and preparation process thereof

A zinc-based heat and stabilizer technology, applied in the field of material chemistry, can solve problems such as poor environmental protection, poor transparency, and high toxicity, and achieve the effects of inhibiting initial discoloration, solving poor transparency, and ensuring low haze.

Inactive Publication Date: 2019-05-07
山东三义集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an environmentally friendly transparent zinc-based heat stabilizer for PVC, which solves the technical problems of poor transparency, high toxicity and poor environmental protection of existing PVC transparent heat stabilizers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh 90 parts of stearic acid, 10 parts of zinc oxide, 0.1 part of hydrogen peroxide, 0.4 parts of a mixture of ammonia water and potassium hydroxide in any proportion, put the weighed stearic acid into the reaction kettle, heat and stir to a temperature of 90°C, and slowly add zinc oxide , then add hydrogen peroxide and react for 80 minutes, add ammonia water and potassium hydroxide mixture in any proportion, cool down after the reaction material is clear and transparent, discharge the material to cool, crush after tableting, and obtain powdery transparent zinc stearate.

[0020] Weigh 15 parts of zinc stearate, 10 parts of hydrotalcite, 5 parts of fumed silica, 2 parts of 6-amino-1,3-dimethyluracil, 2 parts of tris(2-hydroxyethyl)iso 5 parts of cyanurate, 2 parts of glyceryl monostearate, 2 parts of pentaerythritol monostearate, 3 parts of phosphite, 1 part of antioxidant, 1 part of external lubricant, 0.5 part of β-diketones, Add the weighed zinc stearate, hydrotalc...

Embodiment 2

[0023] Weigh 110 parts of stearic acid, 20 parts of zinc oxide, 0.5 parts of hydrogen peroxide, 0.6 parts of a mixture of ammonia water and potassium hydroxide in any proportion, put the weighed stearic acid into the reaction kettle, heat and stir until the temperature is 140°C, and slowly add zinc oxide , then add hydrogen peroxide and react for 100 min, add ammonia water and potassium hydroxide mixture in any proportion, cool down after the reaction material is clear and transparent, discharge the material for cooling, and pulverize after tableting to obtain powdery transparent zinc stearate.

[0024] Weigh 35 parts of zinc stearate, 32 parts of hydrotalcite, 15 parts of fumed silica, 8 parts of 6-amino-1,3-dimethyluracil, 8 parts of tris(2-hydroxyethyl)iso 20 parts of cyanurate, 8 parts of glyceryl monostearate, 8 parts of pentaerythritol monostearate, 15 parts of phosphite, 5 parts of antioxidant, 5 parts of external lubricant, 5 parts of β-diketones, Add the weighed zinc ...

Embodiment 3

[0027] Weigh 100 parts of stearic acid, 15 parts of zinc oxide, 0.2 parts of hydrogen peroxide, 0.5 parts of a mixture of ammonia water and potassium hydroxide in any proportion, put the weighed stearic acid into the reaction kettle, heat and stir until the temperature is 110°C, and slowly add zinc oxide , and then add hydrogen peroxide to react for 90 minutes, add ammonia water and potassium hydroxide mixture in any proportion, cool down after the reaction material is clear and transparent, discharge the material to cool, and pulverize after tableting to obtain powdery transparent zinc stearate.

[0028] Weigh 25 parts of zinc stearate, 25 parts of hydrotalcite, 10 parts of fumed silica, 6 parts of 6-amino-1,3-dimethyluracil, 6 parts of tris(2-hydroxyethyl)iso 12 parts of cyanurate, 4 parts of glyceryl monostearate, 4 parts of pentaerythritol monostearate, 6 parts of phosphite, 3 parts of antioxidant, 3 parts of external lubricant, 2 parts of β-diketones, Add the weighed zinc...

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Abstract

The invention discloses an environment-friendly transparent zinc-based heat stabilizer for PVC and a preparation process thereof, and relates to the technical field of material chemistry. The heat stabilizer comprises the following components: in parts by weight, 15-35 parts of zinc stearate, 10-32 parts of hydrotalcite, 5-15 parts of gaseous silica, 2-8 parts of 6-amino-1,3-dimethyl uracil, 5-20parts of tris(2-hydroxyethyl)isocyanurate, 2-8 parts of glyceryl monostearate, 2-8 parts of pentaerythritol monostearate, 3-15 parts of phosphite, 1-15 parts of an antioxidant, 1-15 parts of an external lubricant and 0.5-5 parts of beta-diketone, and the preparation process of the heat stabilizer comprises preparation of zinc stearate and preparation of the transparent zinc-based heat stabilizer for PVC. The environment-friendly transparent zinc-based heat stabilizer for PVC does not contain lead, cadmium, mercury and other toxic heavy metal, has good long-term thermal stability, initial discoloration can be inhibited effectively, and the technical problems of poor transparency, high toxicity and poor environmental protection of existing transparent heat stabilizers are solved fully; and the process technology is simple, and rapid industrialization and large-scale production can be realized.

Description

technical field [0001] The invention relates to the technical field of material chemistry, in particular to an environmentally friendly transparent zinc-based heat stabilizer for PVC and a preparation process thereof. Background technique [0002] PVC is one of the plastic products with the largest output in the world. It is cheap and widely used in industrial construction, agriculture, daily necessities, packaging, electric power, public utilities and other fields. Due to the existence of allyl chloride and tertiary chlorine in the molecules of PVC Unstable structure, when it is processed under high temperature conditions, it is easy to remove the hydrogen chloride on the molecule, resulting in degradation and discoloration of the polymer, which seriously affects its performance and application effect. Therefore, it is usually necessary to add heat stabilizers to increase its stability during the processing of PVC. [0003] The commonly used PVC transparent heat stabilizer...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L91/06C08K5/098C08K3/26C08K3/36C08K5/103C08K5/524C08K5/3492C08K5/07C08K5/3462
Inventor 谭学政潘学良高海生冯国良孟庆举蒋建林李军明张玉青张众伟
Owner 山东三义集团股份有限公司
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