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High-temperature-resistant and high-pressure-resistant PP-R composite pipe material and preparation method thereof

A technology of PP-R and composite pipes, which is applied in the field of PP-R composite pipes, can solve the problems of PP-R pipes not being resistant to high temperature and pressure, and achieve fine microstructure grains, high compressive strength, enhanced resistance pressure effect

Inactive Publication Date: 2019-09-06
福建富华管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a PP-R composite pipe with high temperature and high pressure resistance and its preparation method, which solves the problems of PP-R pipes in the prior art that are not resistant to high temperature and pressure.

Method used

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  • High-temperature-resistant and high-pressure-resistant PP-R composite pipe material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: A PP-R composite pipe with high temperature and high pressure resistance, containing the following proportioning components in parts by mass: 70 parts of polyethylene resin, 30 parts of epoxy resin, 7 parts of talcum powder, and 13 parts of methyl isobutyl ketone , 18 parts of tea stem powder, 12 parts of seaweed cellulose, 6 parts of decabromodiphenylethane, 7 parts of aluminum hydroxide, 4 parts of crosslinking agent and 4 parts of stabilizer.

[0016] The preparation method of the high temperature and high pressure resistant PP-R composite pipe comprises the following steps:

[0017] (1) Polyethylene resin, epoxy resin, talcum powder, methyl isobutyl ketone, tea stalk powder, seaweed cellulose, decabromodiphenylethane, aluminum hydroxide, cross-linked The coupling agent and the stabilizer were stirred for 40 minutes to obtain a mixture;

[0018] (2) Extruding the mixture with a twin-screw extruder at 230°C to obtain PP-R composite materials;

[0019] (3)...

Embodiment 2

[0020] Example 2: A PP-R composite pipe with high temperature and high pressure resistance, containing the following proportioning components in parts by mass: 60 parts of polyethylene resin, 25 parts of epoxy resin, 5 parts of talcum powder, and 10 parts of methyl isobutyl ketone , 15 parts of tea stem powder, 10 parts of seaweed cellulose, 5 parts of decabromodiphenylethane, 5 parts of aluminum hydroxide, 3 parts of crosslinking agent and 2 parts of stabilizer.

[0021] The preparation method of the high temperature and high pressure resistant PP-R composite pipe comprises the following steps:

[0022] (1) Polyethylene resin, epoxy resin, talcum powder, methyl isobutyl ketone, tea stalk powder, seaweed cellulose, decabromodiphenylethane, aluminum hydroxide, cross-linked The coupling agent and the stabilizer were stirred for 20 minutes to obtain a mixture;

[0023] (2) extruding and granulating the mixture with a twin-screw extruder at 220° C. to obtain a PP-R composite mate...

Embodiment 3

[0025] Example 3: A PP-R composite pipe with high temperature and high pressure resistance, containing the following proportioning components in parts by mass: 80 parts of polyethylene resin, 35 parts of epoxy resin, 10 parts of talcum powder, and 15 parts of methyl isobutyl ketone , 20 parts of tea stem powder, 15 parts of seaweed cellulose, 7 parts of decabromodiphenylethane, 10 parts of aluminum hydroxide, 6 parts of crosslinking agent and 6 parts of stabilizer.

[0026] The preparation method of the high temperature and high pressure resistant PP-R composite pipe comprises the following steps:

[0027] (1) Polyethylene resin, epoxy resin, talcum powder, methyl isobutyl ketone, tea stalk powder, seaweed cellulose, decabromodiphenylethane, aluminum hydroxide, cross-linked The coupling agent and the stabilizer were stirred for 50 minutes to obtain a mixture;

[0028] (2) extruding the mixture with a twin-screw extruder at 250°C to obtain PP-R composite materials;

[0029] (...

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Abstract

The invention discloses a high-temperature-resistant and high-pressure-resistant PP-R composite pipe material and a preparation method thereof. The pipe material comprises, by mass, 60-80 parts of polyethylene resin, 25-35 parts of epoxy resin, 5-10 parts of talc, 10-15 parts of methyl isobutyl ketone, 15-20 parts tea stalk powder, 10-15 parts of seaweed cellulose, 5-7 parts of decabromodiphenylethane, 5-10 parts of aluminum hydroxide, 3-6 parts of a crosslinking agent and 2-6 parts of a stabilizer. The production process is simple and free of toxins and pollutants, the grain size of the microstructure is fine, pores are evenly distributed, the compressive strength of the product is high, and the composite pipe has the advantages of good temperature resistance, high pressure resistance, strong corrosion resistance and the like, and is durable.

Description

technical field [0001] The invention belongs to the field of PP-R composite pipes, and in particular relates to a high-temperature and high-pressure-resistant PP-R composite pipe and a preparation method thereof. Background technique [0002] The microstructure of a polymer plays a decisive role in its performance, and its main chain structure has the greatest influence on the rigidity and flexibility of the chain. For isotactic polypropylene (PP), in isotactic PP, the pendant methyl groups are in the same configuration and located on the same side of the polymer chain, and in the extended configuration, these groups strongly repel each other, by forming 31 helices (that is, each helical cycle has 3 chemical repeating units), the methyl groups on the chain are as far away from each other as possible, this is the configuration with the lowest energy of the polymer, according to this regular repeat arrangement, isotactic PP has high crystallinity Degree, poor impact resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L63/00C08L1/02C08L97/02C08K13/02C08K3/34C08K3/22C08K5/03C08K5/07
CPCC08K2003/2227C08L23/06C08L2201/08C08L2203/18C08L2205/035C08L2205/16C08L63/00C08L1/02C08L97/02C08K13/02C08K3/34C08K3/22C08K5/03C08K5/07
Inventor 杨利忠
Owner 福建富华管业有限公司
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