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Beta PP-R tubular product, and manufacturing method thereof

A PP-R and pipe technology, applied in the field of βPP-R pipes, can solve the problems of low thermal deformation temperature, large thermal expansion coefficient, and low ring stress resistance, and achieve convenient hot-melt connection, small linear expansion coefficient, and thermal deformation The effect of high temperature

Inactive Publication Date: 2014-04-09
ZHEJIANG ZHONGDE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PP-R pipes on the existing market still have deficiencies and need to be improved
For example, the resistance to ring stress is not high, which affects the service life, the thermal deformation temperature is not high, and it does not have high temperature creep resistance. At the same time, the thermal expansion coefficient is large, which causes deformation during installation and use and affects the appearance. In addition, before the inflection point in the production process The pipe is plastic failure, followed by brittle failure after the inflection point, resulting in an increase in production costs, which needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] This embodiment discloses a βPP-R pipe, which is characterized in that: its composition includes PP-R, and the mass percentage of PP-R also includes the following ingredients:

[0063] Beta-PPR, 40%;

[0064] Color masterbatch, 4%;

[0065] Nano emery, 2%;

[0066] Long-acting oxygen inhibitor, 0.5%;

[0067] Nucleating agent, 3%.

[0068] The product obtained from the above formula has greatly improved structural strength and performance, and greatly extended service life. The fusion connection is convenient, the installation is easy, and the labor cost is greatly reduced.

Embodiment 2

[0070] This embodiment discloses a βPP-R pipe, which is characterized in that: its composition includes PP-R, and the mass percentage of PP-R also includes the following ingredients:

[0071] Beta-PPR, 70%;

[0072] Masterbatch, 2%;

[0073] Nano emery, 0.7%;

[0074] Long-acting oxygen inhibitor, 0.5%;

[0075] Nucleating agent, 1%.

[0076] The product obtained from the above formula has greatly improved structural strength and performance, and greatly extended service life. The fusion connection is convenient, the installation is easy, and the labor cost is greatly reduced.

Embodiment 3

[0078] This embodiment discloses a βPP-R pipe, which is characterized in that: its composition includes PP-R, and the mass percentage of PP-R also includes the following ingredients:

[0079] Beta-PPR, 50%;

[0080] Masterbatch, 2%;

[0081] Nano emery, 2%;

[0082] Long-acting oxygen inhibitor, 1%;

[0083] Nucleating agent, 1.5%.

[0084] The product obtained from the above formula has greatly improved structural strength and performance, and greatly extended service life. The fusion connection is convenient, the installation is easy, and the labor cost is greatly reduced.

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Abstract

The invention discloses a beta PP-R tubular product. The beta PP-R tubular product comprises PP-R; PP-R comprises, by mass, 40 to 70% of Beta-PPR, 2 to 4 % of a color master, 0.7 to 2% of nano silicon carbide, 0.5 to 2% of a long-acting oxygen inhibitor, and 1 to 3% of a nucleating agent. The invention also relates to a manufacturing method of the beta PP-R tubular product. The manufacturing method is simple; production efficiency is high; structural strength and performance of obtained products are improved greatly; service life is prolonged significantly; the beta PP-R tubular product possesses super high-temperature resistance, high compression strength, excellent high-temperature creep resistance, low linear expansion coefficient, and high heat distortion temperature; hot-melt conjunction of the beta PP-R tubular product with pipe fittings is convenient; installation is simple; and artificial cost is reduced greatly.

Description

technical field [0001] The invention is a βPP-R pipe, and also relates to a method for manufacturing the βPP-R pipe. Background technique [0002] At present, the most common pipe is PP-R pipe, which has great advantages in performance and is deeply loved by the people. However, the existing PP-R pipes on the market still have deficiencies and need to be improved. For example, the resistance to ring stress is not high, which affects the service life, the thermal deformation temperature is not high, and it does not have high temperature creep resistance. At the same time, the thermal expansion coefficient is large, which causes deformation during installation and use and affects the appearance. In addition, before the inflection point in the production process The pipe is plastic failure, followed by brittle failure after the inflection point, which leads to an increase in production costs and needs to be improved. [0003] It can be seen from the above that it is imminent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08K3/34
CPCC08L23/14C08L2201/08C08L2203/18C08L2205/025C08L2205/24C08K3/34
Inventor 冯伟东彭文华
Owner ZHEJIANG ZHONGDE IND
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