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Continuous glass fiber reinforced polypropylene prepreg tape and preparation method thereof

A technology of glass fiber and prepreg tape, applied in the field of composite material board, can solve the problems of poor bonding between resin and glass fiber and high porosity, and achieve the effect of good strength and surface finish, excellent performance and reducing porosity

Inactive Publication Date: 2020-10-30
ZHENSHI GRP HUAMEI NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of high porosity of continuous glass fiber reinforced polypropylene composite material and poor combination of resin and glass fiber, the present invention provides a continuous glass fiber reinforced polypropylene prepreg tape and its preparation method

Method used

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  • Continuous glass fiber reinforced polypropylene prepreg tape and preparation method thereof
  • Continuous glass fiber reinforced polypropylene prepreg tape and preparation method thereof
  • Continuous glass fiber reinforced polypropylene prepreg tape and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A continuous glass fiber reinforced polypropylene prepreg tape and a preparation method thereof, the technological process is as follows:

[0030] Step 1, weighing the raw materials according to the weight ratio, each component and its ratio data are shown in Table 1;

[0031] Step 2: Mix and stir the raw materials except the continuous glass fiber and put them into the screw extruder. The temperature of the extruder has five sections in total. The first section is set at 180°C, and the second section is set at 220°C. The third, fourth and fifth stages are set at 240°C. The high-temperature melt is transported to the prepreg die through the screw extruder, and then enters the impregnation mold through the die. ℃.

[0032] Step 3, drawing the continuous glass fiber through the high-temperature impregnation mold at a speed of 3-15m / min, and after being fully impregnated, drawing it through the rolling equipment, cooling and molding to obtain the continuous glass fiber re...

Embodiment 2～7

[0034] The raw materials of each component were weighed according to the weight distribution data provided in Table 1, and the rest of the implementation process was the same as in Example 1.

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Abstract

The invention discloses a continuous glass fiber reinforced polypropylene prepreg tape and a preparation method thereof. The continuous glass fiber reinforced polypropylene prepreg tape is prepared from the following raw materials in parts by weight: 30-70 parts of continuous glass fibers, 30-70 parts of polypropylene, 0.1-5 parts of a compatilizer, 0.1-5 parts of an antioxidant, 0.1-10 parts of alubricant, 0-5 parts of organic peroxide and 0.1-5 parts of nano silicon dioxide. The formula is scientific and reasonable, the nano silicon dioxide is used for producing a continuous glass fiber reinforced polypropylene prepreg tape, micron gaps among glass fibers can be filled and the porosity of a composite material can be greatly reduced, the combination of a compatilizer and the glass fiberscan be promoted to enhance the interface fastness of a resin system and the glass fibers so that the continuous glass fiber reinforced polypropylene prepreg tape with better toughness, strength and surface smoothness is prepared.

Description

technical field [0001] The invention relates to the field of composite material plates, in particular to a continuous glass fiber reinforced polypropylene prepreg tape and a preparation method thereof. [0002] technical background [0003] Since the performance of the composite material increases with the increase of the length of the reinforcing fiber, the continuous glass fiber reinforced polypropylene composite material has extremely excellent mechanical properties, and can even replace metal materials in some cases. Compared with polypropylene composite materials reinforced with glass fiber mat, short glass fiber or long glass fiber, the glass fibers in continuous glass fiber reinforced polypropylene composite materials are arranged in one direction, which has higher strength, modulus and fracture toughness. and excellent creep resistance. [0004] The physical properties of continuous glass fiber reinforced polypropylene composites are mainly affected by the flow prope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L53/00C08L83/04C08K13/04C08K7/14C08K3/36C08K5/14C08J5/04
CPCC08J5/043C08J2323/12C08J2323/14C08J2353/00C08J2423/12C08J2423/14C08J2453/00C08J2483/04C08K3/36C08K5/14C08K7/14C08K13/04C08K2201/003C08K2201/006C08K2201/011
Inventor 李代文周杰姚玉元张海旭
Owner ZHENSHI GRP HUAMEI NEW MATERIALS
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