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Phenolic glass fiber prepreg with light color and high quality surface effects and preparation method thereof

A phenolic glass fiber prepreg and surface effect technology is applied in the fields of phenolic glass fiber prepreg and its preparation, functionally modified phenolic glass fiber prepreg and its preparation, and can solve the problems of dark color, poor shading effect and low surface quality, etc. , to achieve the effect of uniform color, good effect and flexible molding process

Active Publication Date: 2016-08-17
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

One of the big breakthroughs is to reduce the amount of Tedlar film pasted on the surface of composite parts or the amount of sprayed paint as much as possible, and the sensory comfort requirements of passengers can be met under the condition of using a thin layer of decorative materials to cover the surface of the parts. This needs to completely solve the problems of darker color, poor shading effect and low surface quality of traditional phenolic resin and its composite products

Method used

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  • Phenolic glass fiber prepreg with light color and high quality surface effects and preparation method thereof
  • Phenolic glass fiber prepreg with light color and high quality surface effects and preparation method thereof
  • Phenolic glass fiber prepreg with light color and high quality surface effects and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1) In a reaction kettle with an effective volume of 200L, add phenol and formaldehyde solution in sequence at a molar ratio of 1:1.8, stir at a speed of 100r / min, and add Ba(OH) 2 ·8H 2 O to adjust the pH value to 8, then slowly raise the temperature to about 95°C and react at a constant temperature for more than 2 hours, then vacuum dehydrate for more than 1 hour, add phosphoric acid to neutralize until the pH value reaches 7, precipitate and cool to room temperature, and the obtained is the basic phenolic resin , keep 100kg in the kettle for standby;

[0034] 2) Add 1kg of titanium dioxide, 1kg of polymerized ammonium phosphate and 5kg of E51 epoxy resin into a 10L reaction kettle with heating function, stir at a speed of 300r / min, then heat to 90°C and keep it warm for more than 30min, then move into three The roller grinder stops after grinding 2 times, and it is used for standby;

[0035]3) add 50kg ethanol in step 1) gained base phenolic resin, under the stirrin...

Embodiment 2

[0042] 1) In a reaction kettle with an effective volume of 200L, add phenol and formaldehyde solution in sequence at a molar ratio of 1:1.8, stir at a speed of 100r / min, and add Ba(OH) 2 ·8H 2 O to adjust the pH value to 8, then slowly raise the temperature to about 95°C and react at a constant temperature for more than 2 hours, then vacuum dehydrate for more than 1 hour, add a certain amount of phosphoric acid to neutralize until the pH value reaches 7, precipitate and cool to room temperature, and the obtained is the basis Phenolic resin, keep 100kg in the kettle for subsequent use;

[0043] 2) Add 1kg of titanium dioxide, 1kg of polymerized ammonium phosphate and 5kg of E51 epoxy resin into a 10L reaction kettle with heating function, stir at a speed of 300r / min, then heat to 90°C and keep it warm for more than 30min, then move into three The roller grinder stops after grinding 2 times, and it is used for standby;

[0044] 3) Add 50kg ethanol in step 1) gained basic pheno...

Embodiment 3

[0051] 1) In a reaction kettle with an effective volume of 200L, add phenol and formaldehyde solution in sequence at a molar ratio of 1:1.8, stir at a speed of 100r / min, and add Ba(OH) 2 ·8H 2 O to adjust the pH value to 8, then slowly raise the temperature to about 95°C and react at a constant temperature for more than 2 hours, then vacuum dehydrate for more than 1 hour, add a certain amount of phosphoric acid to neutralize until the pH value reaches 7, precipitate and cool to room temperature, and the obtained is the basis Phenolic resin, keep 100kg in the kettle for subsequent use;

[0052] 2) Add 1kg of titanium dioxide, 1kg of polymerized ammonium phosphate and 5kg of E51 epoxy resin into a 10L reaction kettle with heating function, stir at a speed of 300r / min, then heat to 90°C and keep it warm for more than 30min, then move into three The roller grinder stops after grinding 2 times, and it is used for standby;

[0053] 3) Add 50kg ethanol in step 1) gained basic pheno...

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Abstract

The invention relates to a phenolic glass fiber prepreg with light color and high quality surface effects and a preparation method thereof. The prepreg is mainly prepared by the following two steps: I, uniformly dispersing an insoluble inorganic powder mixed filler treated in epoxy resin in advance and other fillers in light-colored basic phenolic resin optimally synthesized according to a formula to prepare a modified phenolic resin solution; II, pre-impregnating a glass fiber fabric in the resin solution to prepare the prepreg. The prepreg has good processability and economical property, can be cured under high, medium and low temperature conditions respectively, is flexible in forming process and lower in required pressure, is suitable for preparing various laminated structures and sandwich structures, has excellent mechanical and FST properties and meets the requirements of CCAR25 and TB / T3237, and in particular, the finished product is light ivory yellow, has obvious shading effects and high surface quality and is easy to popularize and apply in manufacturing interior decorating parts of carriages of high-speed rails, such as railway vehicles, and aircraft cabins.

Description

technical field [0001] The invention relates to a phenolic glass fiber prepreg and a preparation method thereof, in particular to a functionally modified phenolic glass fiber prepreg and a preparation method thereof, belonging to the technical field of functional composite materials. Background technique [0002] The cabin materials of advanced large aircraft must not only have higher safety, but also better comfort and economy. Due to its excellent intrinsic flame retardancy, low smoke and low toxicity, thermosetting phenolic resin is suitable for preparing glass fiber reinforced prepregs and is widely used in various laminated structures and sandwich structures such as ceilings, side wall panels, partitions, doors, etc. Manufacturing of interior components to increase the fire safety of aircraft cabins. At the same time, in order to meet the comfort requirements of passengers in the interior space of the aircraft, the surface of the above-mentioned interior parts must be ...

Claims

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Application Information

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IPC IPC(8): C08L61/10C08L63/02C08L29/14C08K13/04C08K7/14C08K3/32C08K5/521C08K3/36C08K3/22C08J5/24
CPCC08J5/24C08J2361/06C08J2429/14C08J2463/00C08L61/06C08L2205/03C08L63/00C08L29/14C08K13/04C08K7/14C08K2003/323C08K5/521C08K3/36C08K2003/2227
Inventor 王伟左小彪冯志海胡宏林孙福瑞
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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