Manually-pasting molding method of para-position aramid fiber composite material
A composite material, para-aramid fiber technology, which is applied in the field of preparation of para-aramid fiber composite material parts, can solve the problems of affecting life, low interlaminar shear strength of composite materials, poor adhesion of aramid fiber materials, etc.
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Embodiment 1
[0087] A hand lay-up method process for flat para-aramid composite parts:
[0088] figure 1 Flowchart of the hand lay-up method. Specifically include the following steps:
[0089] 1. Clean the mold
[0090] A composite mold made of stainless steel is adopted, including a relative female mold and a male mold, and the prepared para-aramid composite material is a rectangular plate-shaped workpiece. The mold is stuck with the residual glue left over from the last demoulding, carefully remove it with a flat shovel without damaging the surface; wash the release agent with water, dry it and set it aside.
[0091] 2. Brushing release agent
[0092] Heat 45 parts of water to 60~70°C, add 5 parts of polyvinyl alcohol (low molecular powder, average molecular weight 16000~20000), keep stirring until completely dissolved, then cool to room temperature, then add 50 parts of ethanol dropwise with stirring to complete Filter to remove particles and impurities. Finally, add 1 part of def...
Embodiment 2
[0121] A hand lay-up method process for cuboid-shaped para-aramid composite parts:
[0122] figure 1 Flowchart of the hand lay-up method. Specifically include the following steps:
[0123] 1. Clean the mold
[0124] A composite mold made of stainless steel is adopted, including a relative female mold and a male mold, and the prepared para-aramid composite material is a rectangular shaped workpiece. The mold is stuck with the residual glue left over from the last demoulding, carefully remove it with a flat shovel without damaging the surface; wash the release agent with water, dry it and set it aside.
[0125] 2. Brushing release agent
[0126] Heat 45 parts of water to 60~70°C, add 5 parts of polyvinyl alcohol (low molecular powder, average molecular weight 16000~20000), keep stirring until completely dissolved, then cool to room temperature, then add 50 parts of ethanol dropwise with stirring to complete Filter to remove particles and impurities. Finally, add 1 part of ...
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