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Method for producing thermosetting phenolic resin-based composite material

A phenolic resin and composite material technology is applied in the field of producing thermosetting phenolic resin-based composite materials to achieve the effects of simple production process, excellent performance and low cost

Inactive Publication Date: 2022-02-11
BAMSTONE NEW MATERIAL TECH (WUHAN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vacuum introduction process generally uses unsaturated polyester resin, vinyl ester resin and epoxy resin, and there is no report on the use of phenolic resin in the vacuum introduction process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Clean the mold first and apply a release agent, then spread 27 layers of 300*300mm 018 glass fiber grid cloth (weight 318g) on ​​the mold; then spread a layer of release cloth, and finally lay a vacuum bag film And seal with sealing tape. A resin pipe, a suction pipe and a spare suction pipe are respectively laid on both sides of the reinforcement material, and the suction pipe and the spare suction pipe are connected to the vacuum pump through the buffer tank. Tighten the resin tube and spare exhaust tube to make it airtight, turn on the vacuum pump, and draw a vacuum through the exhaust tube.

[0027] Preheat BST-PF21 phenolic resin (provided by Beston Composite Materials (Wuhan) Co., Ltd., containing 25% ethanol, viscosity 200-300cP at 50°C) to 60±5°C, immerse the resin tube in the resin, release Ties to allow resin to be drawn in through the resin tube. When the resin has completely saturated the reinforcement, re-tighten the resin tube so that there is no air lea...

Embodiment 2

[0032] Clean the mold first and apply a release agent, then spread 6 layers of 300*300mm 600g / m on the mold 2 Glass fiber biaxial cloth (weight is 372g); then spread 1 layer of release cloth, and finally lay vacuum bag film and seal it with sealing tape. A resin pipe, a suction pipe and a spare suction pipe are respectively laid on both sides of the reinforcement material, and the suction pipe and the spare suction pipe are connected to the vacuum pump through the buffer tank. Tighten the resin tube and spare exhaust tube to make it airtight, turn on the vacuum pump, and draw a vacuum through the exhaust tube.

[0033] Preheat BST-PF21 phenolic resin (provided by Beston Composite Materials (Wuhan) Co., Ltd., containing 25% ethanol, viscosity 200-300cP at 50°C) to 55±5°C, immerse the resin tube in the resin, release Ties to allow resin to be drawn in through the resin tube. When the resin has completely saturated the reinforcement, re-tighten the resin tube so that there is n...

Embodiment 3

[0038]Clean the mold first and apply a release agent, then spread 27 layers of 300*300mm 018 glass fiber grid cloth (weight 318g) on ​​the mold; then spread a layer of release cloth, and finally lay a vacuum bag film And seal with sealing tape. A resin pipe, a suction pipe and a spare suction pipe are respectively laid on both sides of the reinforcement material, and the suction pipe and the spare suction pipe are connected to the vacuum pump through the buffer tank. Tighten the resin tube and spare exhaust tube to make it airtight, turn on the vacuum pump, and draw a vacuum through the exhaust tube.

[0039] Preheat BST-PF22 phenolic resin (provided by Beston Composite Materials (Wuhan) Co., Ltd., containing 15% ethanol, viscosity 200-300cP at 50°C) to 60±5°C, immerse the resin tube in the resin, release Ties to allow resin to be drawn in through the resin tube. When the resin has completely saturated the reinforcement, re-tighten the resin tube so that there is no air leak...

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PUM

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Abstract

The invention provides a method for producing a thermosetting phenolic resin-based composite material. A vacuum infusion process is used, thermosetting phenolic resin is used as a resin matrix, the thermosetting phenolic resin contains not more than 25% by weight of an organic solvent, and the viscosity at the infusion temperature is less than 300 mPa.s; when the resin is cured, an acidic curing agent is not added, gradient temperature heating curing is adopted, the infusion temperature is 50-70 DEG C, and the highest-stage curing temperature is 100-130 DEG C. The production process is simple, the investment is low, the cost is low, the application range is wide, and the prepared composite material is low in porosity and excellent in performance.

Description

technical field [0001] The invention belongs to the technical field of production of phenolic resin-based composite materials, and relates to a method for producing thermosetting phenolic resin-based composite materials. Background technique [0002] Phenolic resin is the first artificially synthesized high molecular polymer invented in the world. From 1905 to 1909, L.H. Baekeland conducted systematic research on phenolic resin and its molding process. In 1910, he established a general-purpose phenolic resin company in the Ruegers factory in Berlin and realized industrial production. Phenolic resin-based composite materials also have a long history and are widely used in fields such as fire prevention, flame retardancy, insulation, and ablation resistance. [0003] Phenolic resins are divided into two categories: thermosetting and thermoplastic. Among them, thermosetting phenolic resins are mainly used for continuous fiber reinforced composite materials. There are two main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/54
CPCB29C70/342B29C70/54
Inventor 刘伟
Owner BAMSTONE NEW MATERIAL TECH (WUHAN) CO LTD