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A novel modified polypropylene pipe and its preparation method

A polypropylene pipe, polypropylene technology, used in rigid pipes, pipes, mechanical equipment, etc., can solve problems such as cost increase, material stiffness, heat resistance decline, etc., to achieve low cost, improve dispersion, and solve the problem of easy aging due to light. Effect

Active Publication Date: 2017-10-31
杭州金泰塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ensuing problem is the compatibility of the blend before, and the stiffness and heat resistance of the material have decreased, and the cost has also increased.

Method used

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  • A novel modified polypropylene pipe and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A novel modified polypropylene pipe, in parts by weight, comprises the following components:

[0032] 15 parts of polypropylene, 2 parts of nano calcium carbonate,

[0033] 1 part of mica powder, 1 part of nano-titanium oxide,

[0034] 5 parts of dispersant, 2 parts of compatibilizer,

[0035] Anti-aging agent 1 part.

[0036] Its preparation method comprises the following steps:

[0037] (1) Mix 2 parts of nano-calcium carbonate, 1 part of nano-titanium oxide, 1 part of mica powder and absolute ethanol, mix and stir evenly, add 5 parts of dispersant, sonicate for 20 minutes and then ball mill for 12 hours. Repeat this 3-4 times to obtain a dispersion ;

[0038] (2) Add the dispersion obtained in step (1) into a high-temperature mixer, stir at 50°C for 1 hour, continue to add 15 parts of polypropylene, 2 parts of compatibilizer, and 1 part of anti-aging agent, and stir at 100°C 2h, obtain mixed material;

[0039] (3) Extrude the mixed material obtained in step (2)...

Embodiment 2

[0041] A novel modified polypropylene pipe, in parts by weight, comprises the following components:

[0042] 30 parts of polypropylene, 5 parts of nano calcium carbonate,

[0043] 3 parts of mica powder, 3 parts of nano-titanium oxide,

[0044] 8 parts of dispersant, 6 parts of compatibilizer,

[0045] Anti-aging agent 5 parts.

[0046] Its preparation method comprises the following steps:

[0047] (1) Mix 5 parts of nano-calcium carbonate, 3 parts of nano-titanium oxide, 3 parts of mica powder and absolute ethanol, mix and stir evenly, add 8 parts of dispersant, sonicate for 30 minutes and then ball mill for 24 hours. Repeat this 3-4 times to obtain a dispersion ;

[0048] (2) Add the dispersion obtained in step (1) into a high-temperature mixer, stir at 60°C for 2 hours, continue to add 30 parts of polypropylene, 6 parts of compatibilizer, and 5 parts of anti-aging agent, and stir at 110°C 5h, obtain mixed material;

[0049] (3) Extrude the mixed material obtained in s...

Embodiment 3

[0051] A novel modified polypropylene pipe, in parts by weight, comprises the following components:

[0052] 17 parts of polypropylene, 3 parts of nano calcium carbonate,

[0053] 2 parts of mica powder, 2 parts of nano-titanium oxide,

[0054] 6 parts of dispersant, 3 parts of compatibilizer,

[0055] Anti-aging agent 2 parts.

[0056] Its preparation method comprises the following steps:

[0057] (1) Mix 3 parts of nano-calcium carbonate, 2 parts of nano-titanium oxide, 2 parts of mica powder and absolute ethanol, mix and stir evenly, add 6 parts of dispersant, sonicate for 22 minutes and then ball mill for 14 hours. Repeat this 3-4 times to obtain a dispersion ;

[0058] (2) Add the dispersion obtained in step (1) into a high-temperature mixer, stir at 52°C for 1.2h, continue to add 17 parts of polypropylene, 3 parts of compatibilizer, and 2 parts of anti-aging agent, at 102°C, Stir for 3h to obtain the mixed material;

[0059] (3) Extrude the mixed material obtained ...

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Abstract

The invention aims to provide a novel modified polypropylene (PP) pipe. The pipe comprises the following components in parts by weight: 15-30 parts of PP, 2-5 parts of nano calcium carbonate, 1-3 parts of mica powder, 1-3 parts of nano titanium oxide, 5-8 parts of a dispersing agent, 2-6 parts of a compatilizer and 1-5 parts of an anti-aging agent. The invention also discloses a preparation method of the novel modified PP pipe. The novel modified PP pipe provided by the invention has good stability, good impact resistance, high rigidity, good heat resistance and improved illumination aging resistance, is nontoxic and is beneficial to environmental protection. The preparation method is simple and is low in cost.

Description

Technical field: [0001] The invention relates to the field of building materials, in particular to a novel modified polypropylene pipe. Background technique: [0002] Polypropylene (PP) is a thermoplastic resin obtained by polymerizing propylene. According to the arrangement of the methyl group, it can be divided into three types: isotactic polypropylene, atactic polypropylene and syndiotactic polypropylene. Polypropylene is one of the lightest varieties of all plastics at present. It is particularly stable to water. The water absorption rate in water is only 0.01%. It has good formability, good surface gloss and easy coloring. It has high crystallinity and regular structure, so it has excellent mechanical properties. Polypropylene has excellent bending fatigue resistance. Its products can be bent 106 times at room temperature without damage. It has good heat resistance and good chemical stability. It is suitable for making various chemical pipes and fittings, and has good...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/08C08K13/04C08K3/26C08K7/00C08K3/34C08K3/22C08K5/098F16L9/12
CPCC08K2201/011C08K2201/014C08L23/12C08L2201/08C08L2203/18C08L2205/02C08L2205/03C08L2207/10C08L23/0853C08L51/00C08K13/06C08K9/00C08K2003/265C08K3/34C08K2003/2237C08K5/098
Inventor 金巍忠
Owner 杭州金泰塑业有限公司