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Glass fiber reinforced plastic woven-pultruded-wound pipe and preparation method thereof

A technology of pultrusion winding and FRP, which is applied in the field of FRP braided pultrusion winding pipe and its preparation, which can solve the problems of affecting product quality, high production cost, and large consumption, so as to reduce mobility, enhance integrity, and reduce voids Effect

Pending Publication Date: 2021-02-05
广西北海跃达玻璃钢制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the disadvantages that the production of existing glass steel pipes consumes a large amount of raw materials such as resin and limited resources such as quartz sand, and the production cost is relatively large, the present invention provides a preparation method for fiberglass braided pultruded winding pipes, by adding a reinforcing agent in the lining making step , in the pultrusion step, when the pipe passes through at a faster pultrusion speed, it can prevent the pipe from entering the gel zone when it is not fully preheated, resulting in excessive local curing, resulting in delamination and cracking, affecting the product quality problem

Method used

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  • Glass fiber reinforced plastic woven-pultruded-wound pipe and preparation method thereof
  • Glass fiber reinforced plastic woven-pultruded-wound pipe and preparation method thereof
  • Glass fiber reinforced plastic woven-pultruded-wound pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The preparation method of the fiberglass braided pultrusion winding pipe comprises the following technical steps:

[0048] 1) Lining:

[0049] Prepare materials according to the type and specification of the design materials. The materials are stacked neatly, safely and cleanly, and the materials are strictly protected from moisture. The accelerator and curing agent are stored at a distance of not less than 5 meters;

[0050] Remove the sundries on the surface of the mold, make the outer surface of the mold smooth, check whether the structure of the mold is intact, whether the welding seam of the shaft head is open, apply the release wax evenly on the outer surface of the mold, and squeeze repeatedly to make the wax layer on the surface of the mold even , the thickness meets the design requirements, the mold needs to be waxed once when it is used for the first time or used continuously for many times, and the frequency of waxing should be increased when it is difficult ...

Embodiment 2

[0072] The preparation method of fiberglass braided pultruded winding pipe, compared with Example 1:

[0073] In the lining system of step 1), prepare a 200mm specification film according to the pipe diameter requirements;

[0074] The accelerator is cobalt water, the curing agent is methyl ethyl ketone peroxide, and the resin is selected from unsaturated polyacyl resins, wherein the lining layer resin is selected from bisphenol A type unsaturated polyacyl resins; accelerator, curing agent, reinforcing agent The mass ratio to the resin is 0.3:3:2:100;

[0075] Other steps are the same as in Example 1.

Embodiment 3

[0077] The preparation method of fiberglass braided pultruded winding pipe, compared with Example 1:

[0078] In the lining system of step 1), prepare a 100mm specification film according to the pipe diameter requirements;

[0079] The accelerator is cobalt water, the curing agent is methyl ethyl ketone peroxide, and the resin is selected from unsaturated polyacyl resin, wherein the resin of the lining layer is selected from polyacyl resin or vinyl acyl resin; accelerator, curing agent, reinforcing agent and The mass ratio of resin is 0.3:2:2:100;

[0080] Other steps are the same as in Example 1.

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Abstract

The invention discloses a glass fiber reinforced plastic woven-pultruded-wound pipe and a preparation method thereof. The preparation method comprises the following technical steps: 1) lining preparation; 2) winding; 3) curing: immediately hoisting a mold with the pipe to a curing station after the winding is completed, and starting a main shaft to enable the mold to be in a constant-speed rotating state for curing; 4) pultruding: pulling out the cured pipeline through a traction machine, wherein a traction speed is synchronous with the winding speed and automatically controlled by a computer;and 5) cutting: cutting by a cutting machine according to a set length. According to the invention, in the step of lining preparation, a reinforcing agent is added when an accelerant, a curing agentand resin are mixed, the reinforcing agent is obtained by uniformly mixing nano silicon oxide, acetone and a divinyltetramethyldisiloxane platinum complex according to the mass ratio of 1: 4: 0.05, the cross-linking effect of the divinyltetramethyldisiloxane platinum complex is utilized, and due to the existence of the divinyltetramethyldisiloxane platinum complex in the reinforcing agent, the separation of the inner layer and the outer layer of the pipeline can be prevented.

Description

【Technical field】 [0001] The invention relates to the technical field of FRP pipes, in particular to a FRP braided pultruded winding pipe and a preparation method thereof. 【Background technique】 [0002] FRP pipe is a kind of waste metal pipe. FRP pipe is a kind of pipe made of glass fiber with the same quality as resin and wound on the rotating mandrel layer by layer according to a certain process. It is characterized by light weight and high strength. , strong corrosion resistance, compared with products with the same function, glass steel pipe has strong corrosion resistance, good heat resistance and frost resistance, light weight, high strength, convenient transportation and installation, good electric insulation, no rust, It has the advantages of strong design, various connection methods, and strong repairability. With the rapid development of my country's economy, the safety requirements for municipal engineering, power systems, chemical industry, communications, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/32B29C70/34B29C70/54C08L67/06C08K3/34C08K5/00
CPCB29C70/32B29C70/34B29C70/54C08K3/34C08K5/0091C08L67/06
Inventor 孟飞孟冲孟宪月刘永乐
Owner 广西北海跃达玻璃钢制品有限公司
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