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Pipe composite and preparation method thereof

A composite material and pipeline technology, applied in the field of pipeline composite materials and its preparation, can solve the problems of large internal stress, poor toughness and thermal stability, etc., and achieve the effects of increasing space, improving compatibility, and improving interface differences

Active Publication Date: 2018-08-28
北京中环鑫汇科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Epoxy resin is an organic material with good physical and chemical stability and mechanical properties. It is widely used in pipeline materials. However, due to the defects of large internal stress, poor toughness and thermal stability, epoxy resin is formed by adding other components. Composite material use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Pipeline composite material, comprising 5wt% modified bamboo fiber; The preparation method of described modified bamboo fiber comprises the following steps: (1) bamboo cellulose is pretreated in subcritical water for 20 seconds at 370°C and a pressure of 21MPa, wherein The mass ratio of bamboo fiber and water is 1:10; (2) the sodium hydroxide lye treatment 6h that the pretreated bamboo fiber that obtains of (2) step (1) and pH value are 13, add 0.05wt% in the lye OP-10; (3) Add propylene oxide according to the mass ratio of 1:10, react for 1h, (4) adjust the pH value to 6-6.5 after immersing in the metaaluminate aqueous solution for 24h, stir and age for 48h, filter and in Dry at 110°C for 10h.

Embodiment 2

[0023] The pipeline composite material comprises 10wt% modified bamboo fiber; the preparation method of the modified bamboo fiber comprises the following steps: (1) bamboo cellulose is pretreated in subcritical water for 20 seconds at 370° C. and a pressure of 21 MPa, wherein The mass ratio of bamboo fiber and water is 1:10; (2) the sodium hydroxide lye treatment 6h that the pretreated bamboo fiber that obtains of (2) step (1) and pH value are 13, add 0.05wt% in the lye OP-10; (3) Add propylene oxide according to the mass ratio of 1:10, react for 1h, (4) adjust the pH value to 6-6.5 after immersing in the metaaluminate aqueous solution for 24h, stir and age for 48h, filter and in Dry at 110°C for 10h.

Embodiment 3

[0025] The pipeline composite material comprises 15wt% modified bamboo fiber; the preparation method of the modified bamboo fiber comprises the following steps: (1) bamboo cellulose is pretreated in subcritical water for 20 seconds at 370°C and a pressure of 21MPa, wherein The mass ratio of bamboo fiber and water is 1:10; (2) the sodium hydroxide lye treatment 6h that the pretreated bamboo fiber that obtains of (2) step (1) and pH value are 13, add 0.05wt% in the lye OP-10; (3) Add propylene oxide according to the mass ratio of 1:10, react for 1h, (4) adjust the pH value to 6-6.5 after immersing in the metaaluminate aqueous solution for 24h, stir and age for 48h, filter and in Dry at 110°C for 10h.

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PUM

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Abstract

A pipe composite comprises modified bamboo fiber and epoxy resin. The modified bamboo fiber accounts for 5-20% of the weight of the composite. The preparation method of the modified bamboo fiber includes the following steps that 1, bamboo fiber is pretreated in subcritical water; 2, the pretreated bamboo fiber obtained in step 1 reacts with alkali liquor and a surfactant; 3, the reaction product reacts with alkylene oxide; 4, the reaction product is evenly mixed with a meta-aluminate aqueous solution, dipping is performed, the pH is regulated to be a neutral value, stirring is performed for aging, and filtering and drying are performed. The method is simple in process, environmentally friendly and safe; a composite pipe prepared by the method has high strength and high toughness and is widely applied to the fields of chemical production, agricultural production and the like.

Description

technical field [0001] The invention belongs to the field of pipeline production, in particular to a pipeline composite material and a preparation method thereof. Background technique [0002] Non-metallic composite pipes are widely used in petroleum, chemical, paper, urban water supply and other industries due to their advantages of corrosion resistance, smooth inner surface, and low energy consumption. With the rapid development of my country's economy, the market's recognition and demand for composite pipes expanding day by day. However, non-metallic composite pipes still have shortcomings such as insufficient toughness and high temperature resistance, so the research on non-metallic composite pipe materials has very important practical significance. [0003] In materials science, the material composed of two or more objects with different organizational phases is called a composite material. Usually, high-strength, high-modulus brittle materials are dispersed into low-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L97/02C08L1/02
CPCC08L63/00C08L2205/03C08L2205/16C08L97/02C08L1/02
Inventor 魏晶何新平
Owner 北京中环鑫汇科技有限公司
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