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Composite heat stabilizer, chlorinated polyvinyl chloride pipe and preparation method of chlorinated polyvinyl chloride pipe

A technology of chlorinated polyvinyl chloride and composite heat stabilizer, which is applied in the field of composite heat stabilizer, chlorinated polyvinyl chloride pipe and its preparation, and can solve the problem of high melt viscosity and increased brittleness of mechanical properties of chlorinated polyvinyl chloride resin , low thermal stability and other issues

Inactive Publication Date: 2021-05-18
ZHONGSHAN UNIVERSAL ENTERPRISE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, chlorinated polyvinyl chloride resin has high melting viscosity, high plasticizing temperature, high friction between molten resin particles, and low thermal stability, which brings great difficulties to extrusion molding processing; at the same time, there is also an increase in brittleness in terms of mechanical properties. Large, low impact strength issues

Method used

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  • Composite heat stabilizer, chlorinated polyvinyl chloride pipe and preparation method of chlorinated polyvinyl chloride pipe
  • Composite heat stabilizer, chlorinated polyvinyl chloride pipe and preparation method of chlorinated polyvinyl chloride pipe

Examples

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Embodiment 1

[0031] This embodiment provides a kind of preparation method of chlorinated polyvinyl chloride pipe, it comprises the following steps:

[0032] S1. According to the mass parts of the above-mentioned components, weigh 1000g of chlorinated polyvinyl chloride resin, 90g of composite heat stabilizer, 30g of lubricant, 100g of impact modifier, 50g of inorganic filler, 0.5g of coupling agent, and pigment 50g, spare;

[0033] Among them, the composite heat stabilizer includes organotin heat stabilizer, zinc stearate, calcium stearate and magnesium aluminum hydrotalcite; organotin heat stabilizer, zinc stearate, calcium stearate and magnesium aluminum hydrotalcite The mass ratio is 1:1.2:4.8:2; the organotin heat stabilizer is tin methyl mercaptide;

[0034] The lubricant is a mixture of stearic acid, oxidized polyethylene wax, and ethylene bis-stearamide; the mass-number ratio of stearic acid, ethylene bis-stearamide, and oxidized polyethylene wax is 1:5:4;

[0035] The impact modi...

Embodiment 2～8

[0039] The preparation methods and process parameters adopted in Examples 2-8 are the same as those in Example 1, the difference is that the amounts of each component are different. Specifically, the components and their amounts used in Examples 1-8 are shown in Table 1 .

[0040] Table 1

[0041]

Embodiment 9

[0043] This embodiment provides a kind of preparation method of chlorinated polyvinyl chloride pipe, it comprises the following steps:

[0044] S1. According to the mass parts of the above-mentioned components, weigh 1000g of chlorinated polyvinyl chloride resin, 40g of composite heat stabilizer, 30g of lubricant, 80g of impact modifier, 10g of inorganic filler, 0.5g of coupling agent, and pigment 5g, spare;

[0045] Among them, the composite heat stabilizer includes organotin heat stabilizer, zinc stearate, calcium stearate and magnesium aluminum hydrotalcite; organotin heat stabilizer, zinc stearate, calcium stearate and magnesium aluminum hydrotalcite The mass ratio is 1:0.5:1:0.5; the organic tin heat stabilizer is a mixture of equal mass ratios of dimethyl tin chloride, butyl tin mercaptide, and dibutyl tin dichloride; the lubricant is stearate acid monoglyceride; the impact modifier is an acrylic ester copolymer; the inorganic filler is an equal mass ratio mixture of ca...

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Abstract

The invention is suitable for the technical field of pipe preparation, and provides a composite heat stabilizer, a chlorinated polyvinyl chloride pipe and a preparation method thereof, and the composite heat stabilizer comprises the following components: an organic tin heat stabilizer, zinc stearate, calcium stearate and magnesium aluminum hydrotalcite. In addition, the chlorinated polyvinyl chloride pipe comprises the following components: chlorinated polyvinyl chloride resin, a composite heat stabilizer, a lubricant, an impact modifier, an inorganic filler, a coupling agent and a pigment. The Vicat softening temperature of the chlorinated polyvinyl chloride pipe is not lower than 110 DEG C, and the chlorinated polyvinyl chloride pipe has the advantages of being resistant to high temperature and corrosion, high in strength, free of pollution, not prone to aging and the like, is good in processability, can be used as an industrial pipe and can be used in the industrial pipeline fields of petroleum, chemical engineering, sewage treatment and water treatment, power electronics, metallurgy, mining, papermaking and the like.

Description

technical field [0001] The invention belongs to the technical field of pipe preparation, and in particular relates to a composite heat stabilizer, a chlorinated polyvinyl chloride pipe and a preparation method thereof. Background technique [0002] Chlorinated polyvinyl chloride resin is a polymer material obtained by chlorination and modification of polyvinyl chloride, and the chlorine content is increased from 56% to 59% (mass percentage) to 63% to 75% (mass percentage). With the increase of chlorine content, the density of chlorinated polyvinyl chloride resin increases, the softening point increases, the heat resistance improves, the corrosion resistance of acids, alkalis, salts, oxidants, etc. increases, and the rigidity and tensile strength increase. Good comprehensive properties make chlorinated polyvinyl chloride resin one of the best engineering materials for industrial pipelines, hot and cold water pipelines and fireproof pipelines, and can also be used to manufactu...

Claims

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Application Information

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IPC IPC(8): C08K13/02C08K5/57C08K5/58C08K5/098C08K3/22C08L27/24C08L23/28C08L51/04
CPCC08K13/02C08K5/57C08K5/58C08K5/098C08K3/22C08L27/24C08L2203/18C08L23/286C08L51/04
Inventor 董智贤张新国方景辉何安华
Owner ZHONGSHAN UNIVERSAL ENTERPRISE LTD
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