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Room-temperature-cured high-pressure epoxy pipeline and preparation method thereof

A technology of curing at room temperature and high-pressure ring, applied in the direction of tubular objects, other household appliances, applications, etc., can solve the problems of low activity of epoxy resin, energy loss, environmental impact, etc., to save production costs and energy, reduce pollution damage, highly operable effect

Inactive Publication Date: 2018-12-11
LIANYUNGANG ZHONGFU LIANZHONG COMPOSITES GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, epoxy resin has low activity at room temperature and hardly reacts at room temperature. Both the anhydride-cured epoxy system and the aromatic amine-cured epoxy system used in the prior art need to be heated to 150-160°C for curing, which is difficult for production equipment. The requirements are high, a large amount of heat energy needs to be provided, the energy loss is serious in the production process, and the production method of steam heating and curing is mostly used, which will also have a great impact on the environment

Method used

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  • Room-temperature-cured high-pressure epoxy pipeline and preparation method thereof
  • Room-temperature-cured high-pressure epoxy pipeline and preparation method thereof
  • Room-temperature-cured high-pressure epoxy pipeline and preparation method thereof

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Embodiment 1

[0054] Such as figure 1 , figure 2 Shown: a kind of normal temperature curing high-pressure epoxy pipeline preparation method, it comprises the following steps:

[0055] (a) Epoxy resin curing glue system configuration at room temperature;

[0056] The specific materials and configuration methods are as follows:

[0057] With the ratio of epoxy resin: curing agent: defoamer=100:13.5:0.2 (ratio is in parts by weight), weigh 50KG epoxy resin, 5~6.75KG curing agent, 0.05~0.1KG defoamer respectively, Stir and mix the epoxy resin and curing agent for 2 minutes, then add the defoamer, stir and mix for 5 minutes, and let stand for 5 minutes.

[0058] In the present invention, the epoxy resin is a bisphenol A type epoxy resin, the curing agent is triethylenetetramine, and the defoaming agent is an acrylate polymer.

[0059] (b) Winding control; the specific method is:

[0060] Calculate wall thickness based on pressure requirements:

[0061]

[0062] (Where Ps is the static pr...

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Abstract

The invention discloses a room-temperature-cured high-pressure epoxy pipeline and a preparation method thereof. The method includes the steps of preparing normal-temperature-curing epoxy resin adhesive liquid, processing a mold, and forming winding and room-temperature curing. The high-pressure epoxy pipeline is prepared from 100 parts of epoxy resin, 10-16 parts of curing agents, 0.1-0.2 part ofdefoaming agent and 260-340 parts of glass fiber winding yarns. The preparation method of the room-temperature-cured high-pressure epoxy pipeline has the advantages that curing can be realized at theroom temperature of 25-40 DEG C, heat treatment can be conducted without energy consumption, the defect that existing high-pressure epoxy pipelines are cured at the high temperature of 150-160 DEG C can be overcome, the production cost and the energy can be saved, and pollution and damage to the environment can be relieved remarkably during production of the high-pressure epoxy pipeline.

Description

technical field [0001] The patent of the present invention relates to a preparation method of a composite pipe, in particular to a method for manufacturing a high-pressure epoxy pipe by curing a glass fiber-reinforced epoxy resin at room temperature. Background technique [0002] Due to its excellent corrosion resistance, fatigue resistance, longer service life, light weight and low installation cost, epoxy pipes are widely used in petrochemical, urban water supply and drainage, hot spring pipelines and other fields. [0003] However, epoxy resin has low activity at room temperature and hardly reacts at room temperature. Both the anhydride-cured epoxy system and the aromatic amine-cured epoxy system used in the prior art need to be heated to 150-160°C for curing, which is difficult for production equipment. The requirements are high, a large amount of heat energy needs to be provided, the energy loss is serious in the production process, and the production method of steam he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L33/04C08L71/00C08K7/14C08G59/50B29C70/30B29C70/54B29L23/00
CPCB29C70/30B29C70/54B29L2023/22C08G59/5006C08L63/00C08L2203/18C08L2205/03C08L33/04C08L71/00C08K7/14
Inventor 南洋刘卫生周松林刘永齐帆李青
Owner LIANYUNGANG ZHONGFU LIANZHONG COMPOSITES GRP
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