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Ultrafine glass fiber reinforced HDPE double-wall corrugated pipe

A technology of double-wall corrugated pipe and glass fiber cotton, which is applied in the field of building materials, can solve the problems of poor external pressure resistance, low strength, and low rigidity of pipe rings, etc., and achieve small dimensional shrinkage, high elastic modulus, and smooth surface. Effect

Inactive Publication Date: 2017-11-10
ANHUI JIELANTE NEW MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] HDPE is one of the five most commonly used plastics in the world. Due to its good toughness and processability, it is widely used, and it is also widely used in municipal water supply and drainage pipes. Conventional HDPE double-wall corrugated pipes generally use talcum powder and calcium carbonate as reinforcement materials. Compared with glass fiber, there are disadvantages such as low strength, large weight, and obvious size shrinkage, which lead to problems such as low ring stiffness, poor external pressure resistance, and high cost.

Method used

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  • Ultrafine glass fiber reinforced HDPE double-wall corrugated pipe
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The outer wall material ratio of HDPE double-wall corrugated pipe: HDPE resin 57%, ultra-fine glass fiber cotton reinforced masterbatch 40%, black masterbatch 1.5% and desiccant 1.5%; the raw material ratio of ultra-fine glass fiber cotton reinforced masterbatch is HDPE 35% of resin, 50% of treated ultrafine glass fiber cotton, 8% of processing aid, 3% of lubricant, 2% of antioxidant and 2% of light stabilizer; treated ultrafine glass fiber cotton includes ultrafine 80% glass fiber cotton, 8% silane coupling agent, 2% titanate, 2% aluminate, 2% fluorocarbon surfactant, 2% soft water.

[0026] Among them, the silane coupling agent is vinyltriethoxysilane; the processing aid is methyl methacrylate polymer; the lubricant is stearic acid or its esters; the antioxidant is hindered phenolic antioxidant; The stabilizer is a benzotriazole ultraviolet absorber.

Embodiment 2

[0028] The outer wall material ratio of HDPE double-wall corrugated pipe: HDPE resin 52%, ultra-fine glass fiber cotton reinforced masterbatch 45%, black masterbatch 2% and desiccant 1%; the raw material ratio of ultra-fine glass fiber cotton reinforced masterbatch is HDPE 40% of resin, 42% of processed ultrafine glass fiber cotton, 9% of processing aid, 5% of lubricant, 2% of antioxidant and 2% of light stabilizer; treated ultrafine glass fiber cotton includes ultrafine Glass fiber cotton 85%, silane coupling agent 5%, titanate 2%, aluminate 2%, fluorocarbon surfactant 1%, soft water 2%.

[0029] Among them, the silane coupling agent is γ-aminopropyltriethylaminosilane; the processing aids are POE, PE-g-MAH and EVA in a ratio of 1:1:1; the lubricants are PE wax, OPE wax and fee The wax, the ratio is 1:1:1; the antioxidant is hindered amine antioxidant; the light stabilizer is benzotriazole ultraviolet absorber.

Embodiment 3

[0031] The outer wall material ratio of HDPE double-wall corrugated pipe: HDPE resin 60%, ultra-fine glass fiber cotton reinforced masterbatch 36.5%, black masterbatch 2% and desiccant 1.5%; the raw material ratio of ultra-fine glass fiber cotton reinforced masterbatch is HDPE 30% of resin, 55% of treated ultrafine glass fiber cotton, 8% of processing aid, 5% of lubricant, 1% of antioxidant and 1% of light stabilizer; treated ultrafine glass fiber cotton includes ultrafine Glass fiber cotton 85%, silane coupling agent 4%, titanate 2%, aluminate 2%, fluorocarbon surfactant 1%, soft water 3%.

[0032] Among them, the silane coupling agent is γ-(ethylenediamino)propyltrimethoxysilane; the processing aid is LLDPE, LDPE and methyl methacrylate polymer in a ratio of 1:1:2; the lubricant is metal soap compound; the antioxidant is a phosphite antioxidant; the light stabilizer is a benzotriazole ultraviolet absorber.

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Abstract

The invention discloses an ultrafine glass fiber reinforced HDPE double-wall corrugated pipe. The ultrafine glass fiber reinforced HDPE double-wall corrugated pipe is prepared through the following four steps: surface activation of glass fibers; preparation of ultrafine glass fiber reinforced master batch; extrusion molding of the HDPE double-wall corrugated pipe; and performance testing of the pipe. The HDPE double-wall corrugated pipe prepared from the ultrafine glass fiber reinforced master batch has the advantages of small dimensional shrinkage, high elastic modulus and high ring stiffness.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an ultramicro glass fiber cotton reinforced HDPE double-wall corrugated pipe. Background technique [0002] HDPE is one of the five most commonly used plastics in the world. Due to its good toughness and processability, it is widely used, and it is also widely used in municipal water supply and drainage pipes. Conventional HDPE double-wall corrugated pipes generally use talcum powder and calcium carbonate as reinforcement materials. Compared with glass fiber, it has disadvantages such as low strength, large weight, and obvious size shrinkage, which lead to problems such as low ring stiffness, poor external pressure resistance, and high cost. Contents of the invention [0003] In order to solve the above problems, the present invention proposes an ultra-fine glass fiber cotton reinforced HDPE double-wall corrugated pipe. [0004] In order to achieve the purpose of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L33/12C08L51/06C08L23/08C08L23/30C08L91/06C08K9/06C08K9/04C08K7/14C08K5/09C08K5/521C08K3/04C08J5/08C08J5/10
CPCC08L23/06C08J5/08C08J5/10C08J2323/06C08J2423/06C08J2423/08C08J2423/30C08J2433/12C08J2451/06C08J2491/06C08K2201/003C08K2201/011C08L2203/18C08L2205/02C08L2205/025C08L2205/035C08L2207/062C08L2207/066C08L33/12C08K9/06C08K9/04C08K7/14C08K5/09C08K3/04C08L23/0815C08L51/06C08L23/0853C08K5/521C08L23/30
Inventor 汪进南刘俊峰汪燕飞
Owner ANHUI JIELANTE NEW MATERIAL CO LTD
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