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High-strength pultruded profile and preparation method thereof

A technology of pultruded profiles and high strength, which is applied in the field of materials, can solve problems such as the performance degradation of pultruded profiles, and achieve the effects of improving cohesiveness, mechanical properties, and transverse strength

Active Publication Date: 2017-06-09
ZHUZHOU TIMES ELECTRIC INSULATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the reinforced pultruded profiles produced in the prior art only focus on the enhanced design of the profile surface, and the lateral strength of the profile surface is enhanced by using multi-axial fabric or braided layers
In practical applications, once the surface reinforcement layer is damaged, the performance of the pultruded profile will be greatly reduced

Method used

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  • High-strength pultruded profile and preparation method thereof
  • High-strength pultruded profile and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] 1) Resin preparation: 100 parts by mass of epoxy resin, 85 parts by mass of methyltetrahydrophthalic anhydride, 3 parts by mass of zinc stearate, 0.5 parts by mass of silane coupling agent, and 1 part by mass of boron trifluoride amine complex salt were placed in In the dispersion tank, the resin matrix was obtained after stirring for 60 minutes under the condition of 500 rpm.

[0057] 2) Preparation of multi-axial fabric sizing gray cloth

[0058] Using the resin matrix prepared in step 1), the multi-axial fabric was impregnated with glue by a gluing machine, and baked in an oven at 120° C. for 3 minutes for semi-curing to prepare a multi-axial fabric glued gray cloth. The multiaxial fabric is a continuous fiber mat, and the multiaxial fabric gluing gray cloths 3, 4, 5, 6, 7, and 8 are respectively one layer of continuous fiber mat gluing gray cloth.

[0059] 3) Drying and rowing

[0060] Utilize the drying room to dry the glass fiber and the multiaxial fabric sizing...

Embodiment 2

[0066] Compared with Example 1, the only difference is that the multiaxial fabric is a composite felt, and the multiaxial fabric glued gray cloths 3, 4, 5, 6, 7, and 8 are respectively one layer of composite felt. Rubber gray cloth.

Embodiment 3

[0068] Compared with Example 1, the only difference is that the multiaxial fabric is a knitted felt, and the multiaxial fabric sizing gray cloths 3, 4, 5, 6, 7, and 8 are respectively one layer of knitted felt. Rubber gray cloth.

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Abstract

The invention relates to a high-strength pultruded profile which comprises the following components: 20-30 wt% of resin matrix, 30-40 wt% of glass fiber and 30-40 wt% of multiaxial sized raw fabric. The high-strength pultruded profile is characterized in that the glass fibers are uniformly distributed inside the resin matrix to enhance the axial strength of the pultruded profile; the multiaxial sized raw fabrics are respectively formed by previously dipping the fabric in the resin matrix and carrying out semi-curing, and respectively positioned on the surface and in the middle of the pultruded profile; the multiaxial sized raw fabric on the surface is used for protecting the surface of the pultruded profile and enhancing the transverse strength of the pultruded profile surface; and the multiaxial sized raw fabric in the middle is used for enhancing the overall transverse strength of the pultruded profile. The invention also relates to a preparation method of the high-strength pultruded profile.

Description

technical field [0001] The invention relates to a material, in particular to a profile. The invention also relates to a method for the preparation of the profile. Background technique [0002] Glass fiber is a man-made inorganic fiber with a series of excellent characteristics such as high temperature resistance, corrosion resistance, high strength, light specific gravity, low moisture absorption, small elongation and good electrical insulation performance. It has incomparable characteristics in terms of heat and sound absorption, and is considered to be an excellent reinforcing material. [0003] Pultrusion molding is to pass the glass fiber, cloth or tape impregnated with resin glue through a mold with a specified cross-section, and continuously draw out the molded products. The production automation is high and the cost is low. As the main reinforcement material of pultruded profiles, glass fiber is combined with various resins to derive many excellent properties, resul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/04B32B17/12B32B27/18B29C70/52B29C70/22
CPCB29C70/22B29C70/52B32B17/04B32B27/18
Inventor 魏连连马鹏刘含茂宋欢杨科上官久桓鲍时宽
Owner ZHUZHOU TIMES ELECTRIC INSULATION
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