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Glass fiber reinforced plastic

A glass fiber and reinforced plastic technology, applied in the field of glass fiber reinforced plastics, can solve the problems of large differences in thermal expansion coefficient, failure stress, strength, corrosion resistance and weather resistance, etc.

Active Publication Date: 2015-06-24
SUZHOU HENG CHUAN PHOTOVOLTAIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the difference in thermal expansion coefficient between glass fiber and resin matrix is ​​large; the surface energy of glass fiber is high, which promotes hydrophilicity, so the wettability of resin to glass fiber is poor, the interface is not well bonded, and destructive stress is easily formed. Reinforced plastics are easy to delaminate, which affects the performance of the product, that is, the product cannot achieve ideal results in terms of strength, corrosion resistance and weather resistance

Method used

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  • Glass fiber reinforced plastic
  • Glass fiber reinforced plastic
  • Glass fiber reinforced plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The glass fiber reinforced plastic of the present invention comprises the following components by weight:

[0018]

[0019] The weight ratio of combined low-shrinkage additive is 3 parts

[0020] The weight proportion of organic peroxy compound is 0.4 part

[0021] The preparation process is as follows: Step 1: Add coupling agent, combined low-shrinkage additive and organic peroxygen compound to the dispersant and disperse evenly, then add it to the vinyl resin epoxy resin, then add chopped fibers and stir evenly to obtain Hardener;

[0022] Step 2, laying the glass fiber cloth into the mold layer by layer, and placing the curing agent obtained in step 1 in the mold, at a temperature of 160 degrees Celsius and a vacuum (vacuum degree of 0.01-0.08MPa, preferably 0.03MPa) Carry out curing molding to obtain glass fiber reinforced plastic.

[0023] The glass fiber cloth is made of non-alkali glass fiber cloth. The characteristics of the non-alkali glass fiber cloth ar...

Embodiment 2

[0037] The glass fiber reinforced plastic of the present invention comprises the following components by weight:

[0038]

[0039]

[0040] The weight ratio of combined low-shrinkage additive is 4 parts

[0041] The weight proportion of organic peroxy compound is 0.5 part

[0042] The preparation process is, the preparation process is, step 1: add the coupling agent, combined low shrinkage additive and organic peroxygen compound to the dispersant and disperse evenly, then add it to the vinyl resin epoxy resin, and then add the chopped fiber And stir evenly to obtain curing agent;

[0043] Step 2, laying the glass fiber cloth into the mold layer by layer, and placing the curing agent obtained in the step 1 into the mold, at a temperature of 180 degrees Celsius and a vacuum degree of (0.01-0.08MPa, preferably 0.05MPa) Carry out curing molding to obtain glass fiber reinforced plastic.

[0044] What the glass fiber cloth adopts is alkali-free glass fiber cloth, and the ch...

Embodiment 3

[0058] The glass fiber reinforced plastic of the present invention comprises the following components by weight:

[0059]

[0060] The weight ratio of combined low-shrinkage additive is 5 parts

[0061] The weight proportion of organic peroxy compound is 0.6 part

[0062] The preparation process is, the preparation process is, step 1: add the coupling agent, combined low shrinkage additive and organic peroxygen compound to the dispersant and disperse evenly, then add it to the vinyl resin epoxy resin, and then add the chopped fiber And stir evenly to obtain curing agent;

[0063]Step 2: Lay the glass fiber cloth into the mold layer by layer, place the curing agent obtained in Step 1 into the mold, and cure it at a temperature of 200 degrees Celsius and a vacuum (0.01-0.08MPa, preferably 0.06MPa) Molded to obtain glass fiber reinforced plastic.

[0064] What the glass fiber cloth adopts is alkali-free glass fiber cloth, and the chopped fiber adopts chopped glass fiber, an...

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Abstract

The invention discloses a glass fiber reinforced plastic comprising the following components in parts by weight: 40-60 parts of vinyl epoxy resin, 90-140 parts of glass fiber cloth, 15-30 parts of chopped fibers, 3-6 parts of a coupling agent and 1-3 parts of a dispersant. The preparation process comprises the following steps: 1, adding the coupling agent into the dispersant, uniformly dispersing, then adding into the vinyl epoxy resin, then adding the chopped fibers, and stirring uniformly to obtain a curing agent; and 2, paving the glass fiber cloth into a mold layer by layer, putting the curing agent obtained in the step 1 into the mold, and molding by curing at 160-220 DEG C to obtain the glass fiber reinforced plastic. According to the glass fiber reinforced plastic disclosed by the invention, the combination between glass fibers and resin is increased, so that the strength, corrosion resistance and weathering resistance of the product are promoted.

Description

technical field [0001] The invention relates to a glass fiber reinforced plastic. Background technique [0002] Glass fiber reinforced plastic (FRP) is a composite plastic based on glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin. As a kind of composite material, due to its unique performance advantages, FRP has been widely used in aerospace, railway, decorative architecture, home furniture, building materials, bathroom and sanitation engineering and other related industries. Existing glass fiber reinforced plastics are made by the pultrusion process, specifically: under the traction of the traction device, the fiber reinforced material impregnated with resin is first preformed in the mold, and then heated to solidify and form it into FRP. Profiles, and finally cut into FRP products of required length. [0003] In the above preparation process, the glass fiber is directly impregnated in the resin solution. Since the surface of the glass fiber is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K13/04C08K7/00C08K7/14C08K5/14C08J5/04
Inventor 时剑李顺程强倪星
Owner SUZHOU HENG CHUAN PHOTOVOLTAIC TECH CO LTD
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