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FRP prepreg tape and its preparation technology

A preparation process and technology of prepreg tape, which is applied in the field of communication cables, can solve problems such as tensile resistance, lateral pressure resistance, shrinkage resistance, and poor stamping resistance, and achieve good stamping resistance and excellent high and low temperature performance.

Inactive Publication Date: 2013-09-04
NANTONG HETAI COMM EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In general, the strengthening core of the optical cable is a round rod structure, but some special optical cables require the reinforcement to be water-resistant, compressive, and rodent-proof, but the general optical cable is resistant to tension, lateral pressure, retraction, Poor stamping resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] FRP prepreg tape, including the following raw materials:

[0015] Glass fiber 75kg;

[0016] Water-based polyurethane 25kg.

[0017] A kind of preparation technology of FRP prepreg tape, comprises in sequence yarn unwinding, guide yarn, impregnating material, calibrating mold, heating and curing oven, two-wheel pressing roller shaping and winding steps, glass fiber is unwound yarn, and then carries out with guide plate Yarn guide, multi-strand yarns are combined into one yarn, and then enter the dipping tank for impregnation, immerse the glass fiber in water-based polyurethane, perform the impregnation process according to 75kg of glass fiber and 25kg of water-based polyurethane, and then dip the impregnation The good glass fiber enters the shaping mold for cooling and shaping. The cooling temperature is 50°C, and the speed is maintained at 3m / min. Then enter the heating and curing oven for heating and curing. The heating temperature is 180°C. Finally, the heated and c...

Embodiment 2

[0019] FRP prepreg tape, including the following raw materials:

[0020] Glass fiber 80kg;

[0021] Water-based polyurethane 20kg.

[0022] A kind of preparation technology of FRP prepreg tape, comprises in sequence yarn unwinding, guide yarn, impregnating material, calibrating mold, heating and curing oven, two-wheel pressing roller shaping and winding steps, glass fiber is unwound yarn, and then carries out with guide plate Yarn guide, multi-ply yarns are combined into one yarn, and then enter the dipping tank for impregnation, immerse the glass fiber in water-based polyurethane, perform the impregnation process according to 80kg of glass fiber and 20kg of water-based polyurethane, and then dip the impregnation The good glass fiber enters the shaping mold to cool and shape. The cooling temperature is 60°C, and the speed is maintained at 4m / min. Then enter the heating and curing oven for heating and curing. The heating temperature is 200°C. Finally, the heated and cured glas...

Embodiment 3

[0024] FRP prepreg tape, including the following raw materials:

[0025] Glass fiber 85kg;

[0026] Water-based polyurethane 15kg.

[0027] A kind of preparation technology of FRP prepreg tape, comprises in sequence yarn unwinding, guide yarn, impregnating material, calibrating mold, heating and curing oven, two-wheel pressing roller shaping and winding steps, glass fiber is unwound yarn, and then carries out with guide plate Yarn guide, multi-ply yarns are combined into one yarn, and then enter the dipping tank for impregnation, immerse the glass fiber in water-based polyurethane, perform the impregnation process according to 85kg of glass fiber and 15kg of water-based polyurethane, and then dip the impregnation The good glass fiber enters the shaping mold for cooling and shaping, the cooling temperature is 60°C, and the speed is maintained at 5m / min, it enters the heating and curing oven for heating and curing, the heating temperature is 220°C, and finally the heated and cu...

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PUM

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Abstract

The invention discloses a FRP prepreg tape which comprises the following raw materials: by weight, 75-85% of glass fiber, and 15-25% of waterborne polyurethane. The invention also discloses a FRP prepreg tape preparation technology which successively comprises steps of: yarn placing, yarn guiding, dipping, setting mold, heat-curing dryer, double roller setting and rolling. After steps of yarn placing and yarn guiding, glass fiber undergoes the dipping step. That is to say, the glass fiber is dipped in waterborne polyurethane. Then, the dipped glass fiber enters a setting mold for cooling and setting and enters a heat-curing dryer at the speed of 3-5m / min for heat-curing. Finally, the heat-cured glass fiber undergoes double roller setting, and the final finished product is rolled. By combining the reinforced material glass fiber with waterborne polyurethane so as to organically combine flexibility and tensile strength thereof, the FRP prepreg tape provided by the invention has advantages of tensile resistance, good impact resistance and damp-proof and mouse-proof functions.

Description

technical field [0001] The invention relates to an FRP prepreg tape, which belongs to the field of communication cables. [0002] The invention also relates to a preparation process of the FRP prepreg tape. Background technique [0003] In general, the strengthening core of the optical cable is a round rod structure, but some special optical cables require the reinforcement to be water-resistant, compressive, and rodent-proof, but the general optical cable is resistant to tension, lateral pressure, retraction, Poor stamping resistance. Therefore, it is necessary to provide a new technical solution to solve the above problems. Contents of the invention [0004] The purpose of the present invention is to provide a FRP prepreg tape with strong tensile and lateral pressure resistance. [0005] Another object of the present invention is to provide a preparation process for the FRP prepreg tape. [0006] In order to achieve the above object, the technical scheme adopted in t...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08K7/14B29C70/50
Inventor 陆志强仇宝鑫赵荣兵陆卫强
Owner NANTONG HETAI COMM EQUIP