Heat stabilizer for PVC plastic production and processing

A thermal stabilizer and plastic technology, applied in the field of new functional materials, can solve the problems of PVC plastics with poor service life, poor thermal stability of PVC plastics, and limited application range, and achieve aging resistance and mechanical properties. Effect of compatibility, high mechanical stability

Inactive Publication Date: 2019-01-22
含山县胜发塑料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the poor thermal stability of PVC plastic, degradation phenomena such as cracking and thermal discoloration begin to occur when the temperature exceeds 100 °C, and the degradation of material properties is accelerated under the action of acid-base environment
Therefore, PVC plastics need long-term protection against heat, light, oxygen, acid-base damage, etc. during use, which limits its application range and prevents the service life of PVC plastics from being improved.

Method used

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  • Heat stabilizer for PVC plastic production and processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A heat stabilizer for the production and processing of PVC plastics, made of the following components in parts by weight: 1.8 parts of zinc oxide, 1.5 parts of holmium oxide, 11 parts of sodium hydroxide solution, 0.5 parts of oleic acid, 20 parts of ethanol, n-heptane 3.2 parts, 1.0 parts of triethylenetetramine, 1.2 parts of nitrogen nitrogen dimethylformamide, 5.5 parts of zeolite powder, 3 parts of concentrated ammonia water, and its preparation method comprises the following steps:

[0020] (1) Add zinc oxide and holmium oxide powder into a beaker, add sodium hydroxide solution, stir and mix evenly, then transfer to a three-necked flask equipped with a stirrer, drop oleic acid, stir quickly and mix evenly, heat in a water bath to 45°C, Then add n-heptane and nitrogen nitrogen dimethylformamide into the three-necked flask, continue to heat up to 85 ° C, stir and react for 2 hours, and cool to room temperature after the reaction;

[0021] (2) Add zeolite powder to et...

Embodiment 2

[0029] A heat stabilizer for the production and processing of PVC plastics, made of the following components in parts by weight: 1.9 parts of zinc oxide, 1.55 parts of holmium oxide, 11.5 parts of sodium hydroxide solution, 0.55 parts of oleic acid, 23 parts of ethanol, n-heptane 3.25 parts, 1.1 parts of triethylenetetramine, 1.3 parts of nitrogen nitrogen dimethylformamide, 5.8 parts of zeolite powder, 3.5 parts of concentrated ammonia water, and its preparation method comprises the following steps:

[0030] (1) Add zinc oxide and holmium oxide powder into a beaker, add sodium hydroxide solution, stir and mix evenly, then transfer to a three-necked flask equipped with a stirrer, drop oleic acid, stir quickly and mix evenly, heat in a water bath to 50°C, Then add n-heptane and nitrogen nitrogen dimethylformamide into the three-necked flask, continue to heat up to 86 ° C, stir and react for 2.5 hours, and cool to room temperature after the reaction;

[0031] (2) Add zeolite pow...

Embodiment 3

[0039] A heat stabilizer for PVC plastic production and processing, made of the following components in parts by weight: 2.0 parts of zinc oxide, 1.6 parts of holmium oxide, 12 parts of sodium hydroxide solution, 0.6 parts of oleic acid, 25 parts of ethanol, n-heptane 3.3 parts, 1.2 parts of triethylenetetramine, 1.4 parts of nitrogen nitrogen dimethylformamide, 6.0 parts of zeolite powder, 4 parts of strong ammonia water, and its preparation method comprises the following steps:

[0040] (1) Add zinc oxide and holmium oxide powder into a beaker, add sodium hydroxide solution, stir and mix evenly, then transfer to a three-necked flask equipped with a stirrer, drop oleic acid, stir quickly and mix evenly, heat in a water bath to 55°C, Then add n-heptane and nitrogen nitrogen dimethylformamide into the three-necked flask, continue to heat up to 88 ° C, stir and react for 3 hours, and cool to room temperature after the reaction;

[0041](2) Add zeolite powder to ethanol solvent, ...

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Abstract

The invention relates to the technical field of novel functional materials, and discloses a heat stabilizer for PVC plastic production and processing. According to the heat stabilizer, zinc oxide andholmium oxide with excellent thermal stability are used as core raw materials and are subjected to organizing treatment so as to improve the compatibility with PVC plastics, and coating is performed with complexing zeolite powder so as to increase the specific surface area, such that the action efficiency of the heat stabilizer can be increased, the consumption of the heat stabilizer can be reduced, and the service life of the PVC plastic can be significantly prolonged. According to the present invention, the prepared heat stabilizer solves the problem of the drastically deteriorated performance of the existing PVC plastic under the actions of heat, light, oxygen, acids, alkalis and the like, and has high mechanical stability, the aging resistance improving and the mechanical property improving of the PVC plastic are integrated, the development and utilization of PVC plastics is improved, the practical significance in the prolonging of the service life of PVC plastics and the expandingof applicable fields can be achieved, and the technical scheme is extremely worthy of being promoted.

Description

technical field [0001] The invention belongs to the technical field of new functional materials, and in particular relates to a heat stabilizer for production and processing of PVC plastics. Background technique [0002] Plastic is a high molecular compound polymerized by addition polymerization or polycondensation reaction with monomer as raw material. It is commonly known as plastic or resin. It can freely change its composition and shape. , Colorants and other additives. [0003] Polyvinyl chloride, referred to as PVC in English, is a polymer formed by the polymerization of vinyl chloride monomers in peroxides, azo compounds and other initiators, or under the action of light and heat according to the mechanism of free radical polymerization. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. PVC used to be the most widely used general-purpose plastic in the world. It is widely used in building materials, ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/06C08K9/10C08K9/04C08K3/22C08L27/06
CPCC08K3/22C08K9/04C08K9/10C08K13/06C08K2003/221C08K2003/2296C08L2201/08C08L27/06
Inventor 纪安全
Owner 含山县胜发塑料制品有限公司
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