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A kind of continuous glass fiber reinforced high-density polyethylene unidirectional prepreg material and its preparation method and application

A technology of high-density polyethylene and unidirectional prepreg tape, which is applied in the field of fiber-reinforced composite materials, can solve the problems of unsatisfactory long-term service performance of pipelines and general retention of hydrolysis performance, and improve interface bonding force and water resistance. Excellent hydrolysis resistance and performance

Active Publication Date: 2022-01-25
中广核俊尔(浙江)新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The patent specification with the publication number CN 109161098 A discloses a hydrolysis-resistant continuous glass fiber reinforced polypropylene prepreg tape and its preparation method. The performance retention is average, which cannot meet the long-term service of the pipeline

Method used

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  • A kind of continuous glass fiber reinforced high-density polyethylene unidirectional prepreg material and its preparation method and application
  • A kind of continuous glass fiber reinforced high-density polyethylene unidirectional prepreg material and its preparation method and application
  • A kind of continuous glass fiber reinforced high-density polyethylene unidirectional prepreg material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] 100 parts of HDPE (Braskem IG 58), 5.0 parts of maleic anhydride grafted high-density polyethylene (HDPE-g-MAH, BYK SCONA TSPE 2102), 0.8 parts of zinc dimethyldithiocarbamate (ZDMC, commercially available ), 5.0 parts of LDPE (Dow Pont 303C), 0.3 parts of antioxidant 1010, and 0.3 parts of antioxidant 9228 were placed in a mixer for low-speed mixing. After the melt distributor enters the impregnation mold evenly. 240 parts of continuous E-grade glass fiber (self-made according to the above method, 1200tex) are heated by an infrared heating device and merged with the melt in the dipping mold. The glass fiber is forced to The fiber is spread in the mold, and the infiltration angle of the melt formed by multiple sets of impregnating rollers produces a large melt pressure difference, so that the resin melt penetrates the unfolded fiber bundles, thereby impregnating the glass fiber. By adjusting the extruder Feeding amount, traction speed and flat die exit gap, the thickne...

Embodiment 2

[0058] 100 parts of HDPE (Braskem IG 58), 4.0 parts of maleic anhydride grafted low-density polyethylene (LDPE-g-MAH, Ningbo Nengzhiguang WP128), 0.5 parts of zinc dimethyl dithiocarbamate (ZDMC, ), 3.0 parts of LLDPE (Dow Pont 6500), 0.3 part of antioxidant 3114, 0.3 part of antioxidant 9228, put them into a mixer for low-speed mixing, melt through a twin-screw extruder after mixing, and transport after vacuuming After entering the melt distributor, it evenly enters the impregnation mold. 200 parts of continuous E-grade glass fibers (self-made according to the above method, 1200tex) are heated by an infrared heating device and merged with the melt in the dipping mold. The fiber is spread in the mold, and the infiltration angle of the melt formed by multiple sets of impregnating rollers produces a large melt pressure difference, so that the resin melt penetrates the unfolded fiber bundles, thereby impregnating the glass fiber. By adjusting the extruder Feeding amount, tractio...

Embodiment 3

[0062] 100 parts of HDPE (Braskem IG 58), 4.0 parts of maleic anhydride grafted high-density polyethylene (HDPE-g-MAH, BYK SCONA TSPE 2102), 6.0 parts of POE-g-MAH (Ningbo Nengzhiguang FB168), 1.0 Part of diphenyl phosphite (commercially available), 3.0 parts of LLDPE (Dow Pont 6500), 0.2 part of antioxidant 1010, 0.2 part of antioxidant 3114, 0.3 part of antioxidant 9228, put into a mixer and mix at a low speed, After mixing, it is melted by a twin-screw extruder, vacuumized, transported into a melt distributor, and evenly entered into an impregnation mold. 170 parts of continuous E-grade glass fiber (self-made according to the above method, 1200tex) are heated by an infrared heating device and merged with the melt in the dipping mold. The glass fiber is forced to The fiber is spread in the mold, and the infiltration angle of the melt formed by multiple sets of impregnating rollers produces a large melt pressure difference, so that the resin melt penetrates the unfolded fiber...

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Abstract

The invention discloses a continuous glass fiber-reinforced high-density polyethylene unidirectional prepreg material which can be applied to the reinforcing layer of a thermoplastic composite pipe. The raw material composition includes: 100 parts of high-density polyethylene; 100-250 parts of fiber; 1-5 parts of compatibilizer; 0.5-1.0 parts of gel regulator; 0-10 parts of toughening agent; 0.2-1.0 parts of heat stabilizer. The present invention also provides a preparation method for the continuous glass fiber reinforced high-density polyethylene unidirectional prepreg material, which includes: after uniformly mixing the raw materials except the continuous glass fiber, melting and kneading through a twin-screw extruder, The melt is transported into the impregnation mold through a melt distributor or a casting mold, and is impregnated with the continuous glass fiber to obtain the continuous glass fiber reinforced high-density polyethylene unidirectional prepreg material.

Description

technical field [0001] The invention relates to the technical field of fiber-reinforced composite materials, in particular to a continuous glass fiber-reinforced high-density polyethylene unidirectional prepreg material and its preparation method and application. Background technique [0002] Compared with traditional materials such as metals and ceramics, fiber-reinforced resin-based composite materials have the characteristics of high strength, high modulus, light weight and corrosion resistance, and have very broad application prospects in marine fields such as shipbuilding industry and seawater oil fields. [0003] At present, continuous fiber-reinforced thermoplastic prepreg tapes have been used as reinforcing materials to prepare continuous coilable fiber-reinforced flexible composite pipes, which have been applied in marine pipeline engineering. Seawater is a corrosive electrolyte solution in which a variety of salts are dissolved. There are a large number of marine o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L51/06C08L23/08C08K13/06C08K9/04C08K7/14C08K5/39C08K5/526C08J5/08C08G18/83B29C70/52
CPCC08J5/08C08G18/837B29C70/523C08J2323/06C08J2451/06C08J2423/06C08J2423/08C08K13/06C08K9/08C08K7/14C08K5/39C08K5/526B29K2105/08
Inventor 陈光剑宋玉兴黄瑞杰金学斌李永喆张磊陈晓敏
Owner 中广核俊尔(浙江)新材料有限公司