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Pipe made from copolymer of PVC/ acrylonitrile butadiene - styrene, and preparation method

A styrene copolymer, polyvinyl chloride technology, applied in chemical instruments and methods, tubular articles, lamination and other directions, can solve the problems of sound insulation, heat insulation, shock resistance, poor impact resistance, etc. Simple, effect of improving corrosion resistance and heat resistance

Inactive Publication Date: 2006-12-06
金德管业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a hard plastic composite pipe and its production method in view of the defects of poor sound insulation, heat insulation, shock resistance and impact resistance existing in the existing common PVC-U pipe

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] 87kg of rigid polyvinyl chloride (Qilu Petrochemical, a commercially available product) in the outer layer material. Put the above rigid polyvinyl chloride material into the hopper of the main extruder in the extrusion unit, extrude after drying, and process at a temperature of 160-180°C.

[0014] The weight of the hot-melt layer is 3kg (SoamolDT2903 Nichimen Company, USA). Add the above-mentioned hot melt into the hopper of the auxiliary extruder in the extrusion unit, and the processing temperature is between 195-205°C.

[0015] The inner material acrylonitrile-butadiene-styrene copolymer (ABS) weighs 10kg (Korea LGHI121). Add the above-mentioned ABS into the hopper of the auxiliary extruder in the extrusion unit, and the processing temperature is between 200-240°C. The above 3 extruders share a composite molding head, and the above three materials are melted and then enter the composite molding head at the same time. The production pipe diameter is φ40, and the ext...

Embodiment 2

[0017] 80kg of rigid polyvinyl chloride (Qilu Petrochemical, a commercially available product) in the outer layer material. Add the above rigid polyvinyl chloride material into the hopper of the main extruder in the extrusion unit, extrude after drying, and process at a temperature of 180-200°C.

[0018] The weight of the hot melt layer is 4kg (DFDS6498 Finnish Naist Chemical Company). Add the above-mentioned hot melt into the hopper of the auxiliary extruder in the extrusion unit, and the processing temperature is between 200-220°C.

[0019] The inner material acrylonitrile-butadiene-styrene copolymer (ABS) weighs 16kg (Taiwan Chimei 777B). The above-mentioned ABS is added into the hopper of the auxiliary extruder in the extrusion unit, and the processing temperature is between 240-260°C. The above 3 extruders share a compound molding head. The above 3 materials are melted and then enter the head for composite molding. The production pipe diameter is φ160, and the extrusion...

Embodiment 3

[0021] Rigid polyvinyl chloride 82kg (Qilu Petrochemical, commercially available product) in the outer layer material. Put the above rigid polyvinyl chloride material into the hopper of the main extruder in the extrusion unit, extrude after drying, and process at a temperature of 185-205°C.

[0022] The weight of the hot-melt layer is 6kg (V3510K, BASF, Germany). Add the above-mentioned hot melt into the hopper of the auxiliary extruder in the extrusion unit, and the processing temperature is between 220-235°C.

[0023] The inner material acrylonitrile-butadiene-styrene copolymer (ABS) weighs 12kg (Taiwan Chimei 747S). The above-mentioned ABS is added into the hopper of the auxiliary extruder in the extrusion unit, and the processing temperature is between 260-280°C. The above 3 extruders share a compound molding head. The above 3 materials are melted and enter the head for compound molding at the same time. The production pipe diameter is φ160, and the extrusion speed is 5 ...

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PUM

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Abstract

A polyvinyl chloride (PVC) / acrylonitrile-butadiene-styrene copolymer (ABS) tube is composed of an external hard PVC layer, an internal ABS layer, and a thermofusible adhesive layer as sandwich layer. It is prepared by three layers coextruding out method, which includes such steps as extruding out PVC-U layer by primary extruder while extruding internal ABS layer and adhesive sandwich layer by two secondary extruders, passing than through a common shaping die, sizing, cooling, winding, and packing.

Description

(1) Technical field [0001] The invention relates to a polyvinyl chloride / acrylonitrile-butadiene-styrene copolymer pipe and a preparation method. (2) Background technology [0002] Although ordinary PVC-U pipes are a new generation of chemical building material pipes with certain superior comprehensive properties, their application in some special requirements is limited. Ordinary PVC-U pipes are solid wall pipes, which are extruded from PVC resin and other processing aids. Its sound insulation, heat insulation, shock resistance, impact resistance and other properties are poor, and its application in some special requirements is limited, but it has excellent flame retardancy. ABS pipe has a smooth inner wall, and has superior sound insulation, heat insulation, shock resistance, and impact resistance, but it is more expensive for drainage and is easy to burn. In order to improve the shortcomings of ordinary PVC-U pipes such as poor sound insulation, heat insulation, shock r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/06B32B27/30B32B37/12B29L23/00B29K27/06B29K33/18
Inventor 魏钢王仁强孙丽娜王士良
Owner 金德管业集团有限公司
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