Nano-stage hard polyvinyl chloride pipe

A technology of hard polyvinyl chloride and polyvinyl chloride resin is applied in the field of hard polyvinyl chloride pipes and their preparation, which can solve the problems of poor low temperature toughness and the like, and achieve the effects of good ring stiffness, good wear resistance and reduced pipe loss.

Inactive Publication Date: 2008-04-23
上海正鸣塑胶管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a hard polyvinyl chloride pipe, and the hard polyvinyl chloride drainage pipe made of the pipe overcomes the defects of the existing pipes such as poor low-temperature toughness, and has high strength, good heat resistance, corrosion resistance, etc. excellent chemical stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 100 kg of PVC-5 resin, 5.5 kg of composite stabilizer, 8 kg of chlorinated polyethylene, 4 kg of acrylate ACR, 30 kg of calcium carbonate (20 kg of heavy calcium carbonate, 10 kg of nanocarbon Calcium) according to the conventional method for hot mixing and cold mixing treatment, put the mixture into the feeder of the extruder, and make samples through a series of production processes such as extrusion, molding, cutting, etc., and then measure its drop hammer impact index (0°C environment The real impact rate at temperature) and ring stiffness index, the measurement results are shown in Table 1.

Embodiment 2

[0027] Add 100 kg of PVC-5 resin, 5.5 kg of composite stabilizer, 4 kg of acrylate ACR, 8 kg of chlorinated polyethylene, 30 kg of calcium carbonate (25 kg of heavy calcium carbonate, 5 kg of nanocarbonate) in the high-speed mixer. Calcium) according to the conventional method for hot mixing and cold mixing treatment, the mixture is added to the feeding system of the extruder, and then a series of production processes such as extrusion, molding, cutting, etc. are made into samples, and then the drop hammer impact index (0 ° C The real impact rate at temperature) and ring stiffness index, the measurement results are shown in Table 1.

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Abstract

The nanometer level hard polyvinyl chloride pipe material consists of polyvinyl chloride resin 100 weight portions, composite stabilizer 2-6 weight portions, machining assistant 1-6 weight portions, shock resisting agent 1-8 weight portions, and stuffing 20-30 weight portions. The present invention adopts nanometer level stuffing, such as nanometer level calcium carbonate material, to make the hard polyvinyl chloride pipe material possess low temperature shock resisting performance and cyclic rigidity higher than that of available similar pipe material. In addition, the nanometer level hard polyvinyl chloride pipe material has excellent wear resistance, low construction loss and high corrosion resistance.

Description

technical field [0001] The invention relates to a hard polyvinyl chloride (U-PVC) pipe material and a preparation method thereof, in particular to a hard polyvinyl chloride pipe material for manufacturing drainage pipes and a preparation method thereof. Background technique [0002] In the past, the drainage pipes buried in the ground used large-volume pipes such as cast iron pipes or cement pipes. The construction was very troublesome. The cast iron pipes buried underground for a long time had to be replaced every certain number of years, which brought a lot of inconvenience to the project. Traditional cast iron pipes, Cement pipes are gradually replaced by hard PVC pipes. Reinforced pipes and corrugated pipes made of rigid PVC have the characteristics of light weight, low cost, good corrosion resistance, etc., and do not require frequent maintenance and replacement. Construction and installation are convenient. But its disadvantages are poor thermal stability and poor im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K3/26F16L9/12C08L9/06C08L23/28C08L23/08
Inventor 翁友富
Owner 上海正鸣塑胶管业有限公司
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