Composite plastic pipe and preparation process thereof

A technology of composite plastic and preparation process, applied in the field of composite plastic pipe and its preparation process, can solve the problems of increasing the production cost of plastic pipe, increasing the selling price of plastic pipe, difficult processing of pipe, etc., and achieving excellent mechanical properties and good mechanical properties. , The effect of low production cost

Active Publication Date: 2016-08-10
黑龙江京聚保温材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this patent uses a higher content of organic tin stabilizer in the process of preparing plastic pipes. Because the cost of organic tin materials is higher, the p

Method used

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  • Composite plastic pipe and preparation process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A composite plastic pipe, the raw materials and mass percentages of the composite plastic pipe are: chlorinated polyvinyl chloride 65%, polybutene 8%, styrene rubber 7%, cross-linked polyethylene 7%, medium molecular weight poly Ethylene 5%, acetal resin 4%, silane coupling agent 1.3%, plasticizer 0.7%, stabilizer 0.4%, lubricant 0.4%, modifier 0.5%, lanthanum oxide 0.7%; The molecular weight of ethylene is 4×10 5 ; The plasticizer is di-sec-octyl phthalate; the stabilizer is epoxy soybean oil; the lubricant is zinc stearate; the modifier is hydroxyphosphate.

Embodiment 2

[0032] A composite plastic pipe, the raw materials and mass percentages of the composite plastic pipe are: chlorinated polyvinyl chloride 75%, polybutene 3%, styrene rubber 3%, cross-linked polyethylene 3%, medium molecular weight poly Ethylene 6%, acetal resin 5%, silane coupling agent 1.5%, plasticizer 1%, stabilizer 0.6%, lubricant 0.4%, modifier 0.5%, lanthanum oxide 1%; The molecular weight of ethylene is 6×10 5 ; The plasticizer is di-sec-octyl phthalate; the stabilizer is epoxy soybean oil; the lubricant is zinc stearate; the modifier is hydroxyphosphate.

Embodiment 3

[0034] A composite plastic pipe, the raw materials and mass percentages of the composite plastic pipe are: chlorinated polyvinyl chloride 68%, polybutene 7%, styrene rubber 6%, cross-linked polyethylene 6%, medium molecular weight poly Ethylene 6%, acetal resin 5%, silane coupling agent 0.5%, plasticizer 0.5%, stabilizer 0.2%, lubricant 0.2%, modifier 0.1%, lanthanum oxide 0.5%; The molecular weight of ethylene is 4.5×10 5 ; The plasticizer is di-sec-octyl phthalate; the stabilizer is epoxy soybean oil; the lubricant is zinc stearate; the modifier is hydroxyphosphate.

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Abstract

The invention discloses a composite plastic pipe and a preparation process thereof. The composite plastic pipe is prepared from the following raw materials: chlorinated polyvinyl chloride, polybutylene, styrene-rubber, crosslinked polyethylene, medium relative molecular weight polyethylene, acetal resins, silane coupling agents, plasticizers, stabilizers, lubricants, modifiers and lanthanum oxide. The preparation process comprises the following steps of carrying out drying processing after stirring and cleaning the chlorinated polyvinyl chloride, the polybutylene, the styrene-rubber, the crosslinked polyethylene, the medium relative molecular weight polyethylene and the acetal resins; putting into a hopper to stir and mix; then putting the silane coupling agents, the plasticizers, the stabilizers, the lubricants, the modifiers and the lanthanum oxide into the hopper to stir and mix; performing extrusion forming to obtain the plastic pipe; and performing vacuum calibrating, cooling, dragging, annealing, cutting and packaging to obtain the composite plastic pipe. The composite plastic pipe prepared by the invention is uniform and stable in chemical property, and has excellent mechanical performance, and the processing performance of the chlorinated polyvinyl chloride pipe is greatly improved.

Description

technical field [0001] The invention relates to the field of polymer compound compositions, in particular to a composite plastic pipe and a preparation process thereof. Background technique [0002] Plastic pipes are widely used in important areas involving the national economy and the people's livelihood, such as urban construction, agricultural production, and industrial development, such as fluid transportation, gas transportation, and wire and cable sheathing pipes. [0003] Chlorinated polyvinyl chloride is a further chlorinated modified product of polyvinyl chloride. In addition to the excellent properties of polyvinyl chloride, it also has good corrosion resistance, heat resistance, solubility, flame retardancy, mechanical strength, etc. Therefore, plastic pipes made of chlorinated polyvinyl chloride have the advantages of high rigidity, high internal pressure resistance, good heat resistance, corrosion resistance, good flame retardancy, and low linear expansion coeff...

Claims

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Application Information

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IPC IPC(8): C08L27/24C08L23/18C08L25/06C08L23/06C08L91/00C08K13/02C08K5/12C08K5/098C08K5/521C08K3/22B29C47/92B29C47/82B29C47/88B29C71/02B29C48/92
CPCB29C48/09B29C48/832B29C48/9115B29C48/92B29C71/02B29C2071/022B29C2948/9259B29C2948/92704C08L27/24C08L2203/18C08L2205/025C08L2205/035C08L23/18C08L25/06C08L23/06C08L91/00C08K13/02C08K5/12C08K5/098C08K5/521C08K2003/221
Inventor 潘海云
Owner 黑龙江京聚保温材料有限公司
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