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Dehydrating and drying master batch for plastic pipe and production method thereof

A technology for a plastic pipe and a production method, which is applied in the field of water-removing drying masterbatch for plastic pipes and its production field, can solve the problems of plastic pipe honeycomb phenomenon, decreased bending strength, poor compactness, etc., and achieves the effect of saving electric energy consumption.

Active Publication Date: 2013-10-16
HUA BO ENVIRONMENTAL PROTECTION MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Plastic pipe materials came into being. According to the technical indicators of plastic pipes, when manufacturing plastic pipes, colorants, fillers, and recycled plastics must be added. These materials entrain or carry water molecules, resulting in honeycomb phenomenon in plastic pipes. The compactness is not good, there are sunken blister marks on the inner and outer walls of the pipe, and the technical indicators such as the ring rigidity and bending strength of the pipe are reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The production method of dewatering and drying masterbatch for plastic pipes, the production method steps are as follows:

[0014] Get 60 kg of calcium oxide, 5 kg of erucamide, 2 kg of ethylene bis-stearamide, 8 kg of ethylene-butene copolymer, 2 kg of ethylene-octene copolymer, and 20 kg of high-density polyethylene. Add calcium oxide, dispersant, compatibilizer, and high-density polyethylene in the above-mentioned ratio of parts by weight into a high-speed mixer, stir the temperature of the material to 110°C to form a mixed material, cool and pulverize the mixed material, and then add the ground material to the In the twin-screw extrusion granulator, the surface is ground and cut, and then vacuum-packed to make a water-removing and drying masterbatch for plastic pipes.

Embodiment 2

[0016] The production method of dewatering and drying masterbatch for plastic pipes, the production method steps are as follows:

[0017] Take 75 kg of calcium oxide, 5 kg of erucamide, 5 kg of ethylene-butylene copolymer, and 15 kg of high-density polyethylene. Add calcium oxide, dispersant, compatibilizer, and high-density polyethylene in the above-mentioned ratio of parts by weight to a high-speed mixer, stir the temperature of the material to 125°C to form a blended material, cool and pulverize the mixed material, and then add the crushed material to the In the twin-screw extrusion granulator, the surface is ground and cut, and then vacuum-packed to make a water-removing and drying masterbatch for plastic pipes.

Embodiment 3

[0019] The production method of dewatering and drying masterbatch for plastic pipes, the production method steps are as follows:

[0020] Get 80 kilograms of calcium oxide, 4 kilograms of ethylene bisstearic acid amide, 6 kilograms of ethylene-octene copolymers, and 10 kilograms of high-density polyethylene. Add calcium oxide, dispersant, compatibilizer, and high-density polyethylene in the above-mentioned ratio of parts by weight to a high-speed mixer, stir the temperature of the material to 135°C to form a blended material, cool and pulverize the mixed material, and then add the crushed material to the In the twin-screw extrusion granulator, the surface is ground and cut, and then vacuum-packed to make a water-removing and drying masterbatch for plastic pipes.

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PUM

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Abstract

The invention relates to a dehydrating and drying master batch for a plastic pipe and a production method thereof. The master batch is prepared from calcium oxide, a dispersing agent, a compatilizer and high density polyethylene by the steps of stirring, double screw extrusion and granulation. Due to the addition of the dehydrating and drying master batch, a drying process and electric energy are saved, recesses, bubbles, honeycombs or fish scales do not exist on the surface of the plastic pipe, the surface of the plastic pipe has high glossiness, and compactness, ring stiffness and bending strength are improved.

Description

technical field [0001] The invention relates to a water-removing and drying masterbatch for plastic pipes and a production method thereof. Background technique [0002] In recent years, the market demand for plastic pipes in the construction industry, municipal engineering, agriculture, industry and other industries has continued to increase, which has further stimulated the rapid development of my country's plastic pipe industry. Plastic pipes have been widely used in many fields such as building water supply and drainage, building heating, urban gas transmission, urban tap water, municipal drainage, sewage discharge, drinking water improvement for rural people and animals, electric power, communication, etc. Plastic pipe materials came into being. According to the technical indicators of plastic pipes, when manufacturing plastic pipes, colorants, fillers, and recycled plastics must be added. These materials entrain or carry water molecules, resulting in honeycomb phenomeno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K13/02C08K3/22C08K5/20C08L23/08B29B9/06
Inventor 梁树旺
Owner HUA BO ENVIRONMENTAL PROTECTION MATERIAL CO LTD