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Polyethylene pipe composite material

A technology of composite materials and polyethylene pipes, which is applied in the field of composite materials of polyethylene pipes, can solve the problems of high density, low temperature, poor environment containing chemical media, low impact resistance, etc., and achieve good fluidity and high dimensional stability , good flame retardant and aging resistance

Inactive Publication Date: 2015-05-20
许春光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing composite materials, there are many shortcomings such as high density, low impact resistance, resistance to different climate environments, high temperature resistance, low temperature resistance and poor chemical medium environment, so it is difficult to be widely used.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) get hollow microsphere 75.5kg, glass fiber 12.5kg, mica 12.5kg and the high-density polyethylene of 23.7kg carry out drying process in drier respectively, make moisture content be less than 19 / o;

[0019] (2) Get (1) hollow microspheres, glass fibers, and mica and put them into the high-speed mixer GHR and stir at a low speed for 2 minutes, and in the process of stirring, 0.8kg silane coupling agent KH-550 (T-aminopropyl triethoxysilane) into the high-speed mixer (the coupling agent is sprayed with a high-pressure nozzle), and then stirred at high speed for 7 minutes at a stirring temperature of 90-105°C;

[0020] (3) Take (1) medium and high-density polyethylene and put it into a high-speed mixer, and stir with the materials in the barrel for 8 minutes;

[0021] (4) Put the obtained mixture into a TE-65 twin-screw extruder, melt extrude, and pelletize to prepare a composite material.

[0022] 64%。 The composition of the prepared composite material is inorganic fil...

Embodiment 2

[0024] (l) Take 75.3kg of hollow microspheres, 12.5kg of glass fibers, 12.5kg of mica, and 22.7kg of high-density polyethylene and dry them in a drier respectively, so that the moisture content is less than 11)o;

[0025] (2) Get (1) hollow microspheres, glass fibers, and mica and put them into the high-speed mixer GHR and stir them at a low speed for 2 minutes. During the stirring process, 0.2kg of EBS (ethylene bis stearamide), Add 1.8kg of aluminum phthalein composite coupling agent into the high-speed mixer in sequence, then stir at high speed for 8 minutes, and the stirring temperature is 90-105°C;

[0026] (3) Take (1) medium and high-density polyethylene and put it into a high-speed mixer, and stir 8mjn with the materials in the barrel;

[0027] (4) Put the obtained mixture into a TE-65 twin-screw extruder, melt extrude, and pelletize to prepare a composite material.

[0028] The composition of the prepared composite material is 80.24% of inorganic filler, 18.16% of ma...

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PUM

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Abstract

The invention relates to a polyethylene pipe composite material. The polyethylene pipe composite material is characterized by comprising the following main components in percentage by weight: 30.3-92% of inorganic filler, 0.3-2% of a modifying agent and 8-69.7% of a resin matrix, wherein the sum of the contents of all the components is 100%; the inorganic filler comprises hollow microspheres, glass fiber, mica, superfine calcium carbonate, glass fiber / mica, glass fiber / superfine calcium carbonate, mica / superfine calcium carbonate or glass fiber / mica / superfine calcium carbonate, wherein the hollow microspheres are refined from coal ash, and particle size of the hollow microspheres is 3-10mu m; the modifying agent is titanate ester, aluminic acid ester, titanate ester / aluminic acid ester or a silane coupling agent; and the resin matrix is high-density polyethylene. The polyethylene pipe composite material has the advantages that loop stiffness can be improved and cost can be reduced; therefore, the polyethylene pipe composite material has a great prospect.

Description

technical field [0001] The invention relates to a composite material, especially a composite material of polyethylene pipe. Background technique [0002] With the continuous expansion of the application field of polyethylene pipes and fierce market competition, how to produce pipes that meet the requirements at a lower cost has become the main goal pursued by various manufacturers. The composite materials used for polyethylene filling modification have become the first choice of various manufacturers due to their strong flame resistance, excellent impact resistance, small shrinkage rate of finished products, and low raw material cost. In the existing composite materials, there are many shortcomings such as high density, low impact resistance, resistance to different climate environments, high temperature resistance, low temperature resistance and chemical medium environment, etc., so it is difficult to be widely used. How to make the inorganic fillers used in the composite ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K9/06C08K9/04C08K7/28C08K7/14C08K3/34C08K3/26
CPCC08L23/06C08K3/26C08K3/34C08K7/14C08K7/28C08K9/04C08K9/06C08L2203/18C08L2207/062
Inventor 许春光
Owner 许春光
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