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Impact-resistant and fireproof glass fiber reinforced phenolic aldehyde board and preparation method thereof

A technology of fiber reinforced material and glass fiber, which is applied in the field of glass fiber reinforced phenolic sheet and its preparation, can solve the problems of poor flame retardancy, combustion and smoke toxicity, etc., and achieve improved impact resistance, processing performance, and high production efficiency , fast forming effect

Active Publication Date: 2016-01-20
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A lot of research has been done on the toughening modification of phenolic resin at home and abroad, but the glass fiber reinforced phenolic composite material sheet prepared by the current method, taking the thickness specification of 1.27mm as an example, has a drop hammer impact strength of only 20N. m, at the same time, its intrinsic flame retardant performance and combustion smoke toxicity performance are all deteriorated.

Method used

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  • Impact-resistant and fireproof glass fiber reinforced phenolic aldehyde board and preparation method thereof
  • Impact-resistant and fireproof glass fiber reinforced phenolic aldehyde board and preparation method thereof
  • Impact-resistant and fireproof glass fiber reinforced phenolic aldehyde board and preparation method thereof

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preparation example Construction

[0043] The present invention is a kind of impact-resistant, fireproof glass fiber reinforced phenolic sheet material preparation method for cargo hold liner, comprising the following steps:

[0044] (1) In the state of low-speed stirring of the mixed solution of phenolic resin and organic solvent, add the above-mentioned corresponding toughening agent, flame retardant and additive to the resin in sequence, stir at high speed for 60-150 minutes, and then mix the stirred resin The liquid is ground by three rolls to obtain the modified phenolic resin matrix;

[0045](2) Use an organic solvent to dilute the specific gravity of the above-mentioned modified phenolic resin matrix to the range of 0.9 to 1.2, and then put it and the fiber reinforced material on a solution impregnation machine for continuous impregnation, post-drying and winding processes to prepare fiber reinforcement For phenolic prepregs, the volatile content of the prepregs should be less than 5%.

[0046] (3) Cut ...

Embodiment 1

[0059] It is required to prepare surface density specifications ≤976g / m 2 、≤1465g / m 2 、≤2051g / m 2 、≤2539g / m 2 and ≤3418g / m 2 The glass fiber reinforced phenolic sheet is used as a decorative liner and installed in different load-bearing areas inside the cargo hold. The preparation method steps are:

[0060] 1) Add 50kg of commercially available barium hydroxide catalyzed phenolic resin and 15kg of ethanol in a 100L reactor, and stir at a speed of 100 rpm to obtain a phenolic resin solution; then add 1.5kg polyvinyl butyral, 1.5kg Nano-nitrile rubber powder, 1.5kg nano-organosilicon, 1kg nylon particles, 1kg aluminum hydroxide, 1.5kg polyphosphate and 1.5kg nano-silica powder, then stirred at a speed of 500 rpm for 100 minutes, Finally, the stirred mixed solution is ground by three rollers to obtain the modified phenolic resin matrix;

[0061] 2) The modified phenolic resin matrix obtained in step 1) is diluted with an appropriate amount of ethanol, and the specific gravit...

Embodiment 2

[0064] It is required to prepare surface density specifications ≤ 2539g / m 2 The glass fiber reinforced phenolic sheet is used as a decorative liner and installed in a specific load-bearing area in the cargo hold. The preparation method steps are:

[0065] 1) Add 50kg of commercially available barium hydroxide catalyzed phenolic resin and 15kg of ethanol in a 100L reactor, stir at a speed of 100 rpm to obtain a phenolic resin solution; then add 2.5kg polyvinyl butyral, 1.5kg Nano-nitrile rubber powder, 1kg aluminum hydroxide, 1.5kg polyphosphate and 1.5kg nano-silica powder, then stirred at 500 rpm for 100 minutes, and finally passed the stirred mixture through three rollers Grinding to obtain a modified phenolic resin matrix;

[0066] 2) The modified phenolic resin matrix obtained in step 1) is diluted with an appropriate amount of ethanol, and the specific gravity of the solution obtained is 1.10; m 2 ) on the solution impregnation machine with the technological parameters...

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Abstract

The invention relates to an impact-resistant and fireproof glass fiber reinforced phenolic aldehyde board and a preparation method thereof. The board adopts a laminating structure and is formed through hot pressing of multiple layers of prepregs according to the thickness of the board, wherein each prepreg comprises components in percentage by mass as follows: 65%-75% of fiber reinforced materials and 25%-35% of phenolic resin matrix; the phenolic resin matrix comprises components in parts by mass as follows: 100 parts of phenolic resin, 8-15 parts of a toughening agent, 5-10 parts of a fire retardant and 3-5 parts of a thickening additive. The impact resistance of the glass fiber reinforced phenolic aldehyde board is improved by more than 50% while compared with that of conventional phenolic resin based composite, the flame retardant property meets the requirements of CCAR25 and FAR25, particularly, the density of smoke produced after the board is burnt for 4 min is lower than 10, a preparation process is simple, the processing manufacturability and the economical efficiency are good, and the impact-resistant and fireproof glass fiber reinforced phenolic aldehyde board is particularly suitable for being used as a decorative liner plate to be mounted in cargo compartments of an airplane, a ship and a high-speed rail train.

Description

technical field [0001] The invention relates to a glass fiber reinforced phenolic board and a preparation method thereof, in particular to a glass fiber reinforced phenolic board used for cargo hold lining boards and a preparation method thereof, belonging to the technical field of functional composite materials. Background technique [0002] Phenolic resin has excellent heat resistance, flame retardancy and electrical insulation properties as well as good dimensional stability and process adaptability. It is suitable for the manufacture of various fiber-reinforced functional material components and has been widely used in aerospace, electronics, and architectural decoration. and other fields. In recent years, with the rapid development and wide demand of civil aviation, shipbuilding, high-speed rail and other transportation industries, phenolic composite materials have been widely used to manufacture cabin interior structural components such as cabins, ship cabins, ceilings...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L13/00C08L9/02C08L33/00C08L47/00C08L29/14C08L83/04C08L77/00C08K13/06C08K9/10C08K7/14C08K3/22C08K5/3492C08K3/02B29C43/58B32B15/098B32B27/04B32B27/42
Inventor 王伟左小彪冯志海颜雪
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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