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 P

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1:

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

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

Example Embodiment

[0022] Example 2

[0023] Weigh 110 parts of stearic acid, 20 parts of zinc oxide, 0.5 part of hydrogen peroxide, 0.6 part of a mixture of ammonia and potassium hydroxide in any ratio, put the weighed stearic acid into the reactor, heat and stir to 140°C, slowly add zinc oxide , Add hydrogen peroxide to react for 100 minutes, add a mixture of ammonia water and potassium hydroxide in any proportion, cool down after the reaction material is clear and transparent, discharge the material and cool, pulverize after tabletting to obtain powdered 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, tris(2-hydroxyethyl) iso 20 parts of cyanurate, 8 parts of glyceryl monostearate, 8 parts of pentaerythritol monostearate, 15 parts of phosphites, 5 parts of antioxidants, 5 parts of external lubricants, 5 parts of β-diketones, Add the weighed zinc stearate, hydrotalcite, and fumed silica ...

Example Embodiment

[0026] Example 3

[0027] Weigh 100 parts of stearic acid, 15 parts of zinc oxide, 0.2 part of hydrogen peroxide, 0.5 part of a mixture of ammonia and potassium hydroxide in any ratio, put the weighed stearic acid into the reactor, heat and stir to 110°C, slowly add zinc oxide , Add hydrogen peroxide to react for 90 minutes, add a mixture of ammonia water and potassium hydroxide in any proportion, cool down after the reaction material is clear and transparent, cool the material after discharging, and crush to obtain powdered transparent zinc stearate after tableting.

[0028] Weigh 25 parts of zinc stearate, 25 parts of hydrotalcite, 10 parts of fumed silica, 6 parts of 6-amino-1,3-dimethyluracil, 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 antioxidants, 3 parts of external lubricants, 2 parts of β-diketones, Add the weighed zinc stearate, hydrotalcite, and fumed silica ...

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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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