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Low-cost high-temperature pultruded epoxy resin for smart energy carbon fiber resin-based composite core

A carbon fiber resin-based, epoxy resin technology, applied in the field of low-cost high-temperature pultrusion epoxy resin, can solve the problems of difficulty in meeting the use requirements, prone to cracking, fracture, poor toughness of epoxy resin, etc., to promote rapid curing, Improve the heat and humidity aging resistance and the effect of not easy to absorb

Active Publication Date: 2018-03-20
FAR EAST CABLE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the epoxy resin used for carbon fiber resin-based composite core Tg at 190 ° C is expensive, which is 8 to 12 times the price of ordinary epoxy resin, resulting in high prices for carbon fiber resin-based composite wires. Carbon fiber is promoted in the State Grid Resin-based composite conductors are subject to great restrictions; due to the relatively high Tg of epoxy resin used for carbon fiber resin-based composite cores, the toughness of epoxy resin is relatively poor, carbon fiber composite conductors are generally used in harsh heavy ice areas , Large-span areas, if the prepared carbon fiber resin-based composite core has poor toughness, it is prone to cracking and breaking during use, and it is difficult to meet the increasing use requirements

Method used

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  • Low-cost high-temperature pultruded epoxy resin for smart energy carbon fiber resin-based composite core
  • Low-cost high-temperature pultruded epoxy resin for smart energy carbon fiber resin-based composite core

Examples

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Embodiment 1

[0017] The composition, proportioning number and model of this embodiment are shown in Table 1:

[0018] Table I

[0019]

[0020]

[0021] The epoxy resin cost that present embodiment makes and performance are as follows:

[0022] The price of the epoxy resin system is 80-90 yuan / Kg, which is significantly lower than the existing 200 yuan / Kg.

[0023] Epoxy resin has a viscosity of 500-1000cps at 25°C.

[0024] It takes 10 hours for the viscosity of epoxy resin to double at 25°C.

[0025] The composite mandrel formed by the epoxy resin pultrusion made by the present embodiment can pass through the 50D winding cylinder body for 2min at a speed of 3r / min without peeling or cracking on the surface; / min speed to reverse 360 ​​°, keep 2min, and then straighten, the mandrel does not crack. The pultruded composite mandrel is steadily applied with radial pressure at a speed of 2mm / min, and can withstand a pressure of more than 40kN. The Tg of the pultruded composite mandr...

Embodiment 2

[0027] On the basis of Example 1, adding 10-20 parts of polyethersulfone will further improve Tg and toughness, wherein Tg can be increased to 200-210°C, and the composite core passes through the surface of the 45D winding cylinder at a speed of 3r / min for 2min No peeling, no cracking.

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Abstract

The invention discloses a low-cost high-temperature pultruded epoxy resin for smart energy carbon fiber resin-based composite cores. 10-15 parts, 6-8 parts of silicone slip agent, 100-160 parts of acid anhydride curing agent, 2-4 parts of tertiary amine accelerator, 6-15 parts of kaolin, 2-6 parts of release agent; nano-SiO2 0.5-1 part; coupling agent 0.2-0.4 part. The heat-resistant epoxy resin of the present invention is composed of various epoxy resins, which can improve the comprehensive performance of the heat-resistant epoxy resin; the acid anhydride curing agent is used, the operating time is long, the viscosity is low, the heat distortion temperature is high, and the price is cheap , so the present invention is a low-cost, high-toughness, high-Tg high-temperature pultrusion epoxy resin used for producing carbon fiber resin-based composite cores for cables.

Description

technical field [0001] The invention relates to a low-cost, high-temperature pultruded epoxy resin for smart energy carbon fiber resin-based composite cores. Background technique [0002] Epoxy resin (EP) is an important thermosetting resin with excellent adhesive properties, wear resistance, mechanical properties, electrical insulation properties, chemical stability, high and low temperature resistance, low shrinkage, easy processing and low cost. Low cost and other advantages, widely used in light industry, construction, machinery, aerospace and other fields. [0003] At present, the epoxy resin used for carbon fiber resin-based composite core Tg at 190 ° C is expensive, which is 8 to 12 times the price of ordinary epoxy resin, resulting in high prices for carbon fiber resin-based composite wires. Carbon fiber is promoted in the State Grid Resin-based composite conductors are subject to great restrictions; due to the relatively high Tg of epoxy resin used for carbon fiber...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08L81/06C08K9/06C08K3/34C08K3/36C08G59/42C08G59/58
Inventor 陈涛徐静郑忠敏李世霞陈来
Owner FAR EAST CABLE