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Formula of high-impact-resistance polyvinyl chloride (PVC) pipe material

A technology of PVC pipes and impact resistance, applied in the field of PVC pipe formulations, can solve the problems of difficulty in processing fluidity of inorganic PVC melts, product discoloration and product mechanical performance degradation, and problems such as PVC threading pipes, etc., to achieve flattening pressure improvement , Improve the tensile strength and elongation at break, the effect of high market competitiveness

Inactive Publication Date: 2013-03-20
QINGDAO XINWANTONG PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to structural defects in the PVC molecular chain, hydrogen chloride will be released when heated to 110°C, and the released hydrogen chloride will accelerate the decomposition of PVC. Decrease in mechanical properties, etc., affecting service life
[0003] At present, PVC pipes are becoming more and more important and common in people's daily life. However, in the production process of PVC pipes, the impact resistance of PVC pipes produced by most manufacturers is not good, especially in PVC products. The plasticizing process in processing, the dispersion of inorganic substances and the processing fluidity of PVC melt have always been a difficult problem, which has always plagued the production enterprises of PVC threading pipes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1, a PVC pipe material formula with strong impact resistance is made of the following raw materials in parts by weight: 60 parts of SG-5 type PVC, 5 parts of powdered nitrile, 3 parts of stabilizer, 5 parts of light calcium carbonate, 5 parts of anti-impact agent, 2 parts of titanium dioxide, 4 parts of lubricant, and 1 part of plasticizer.

[0015] The above-mentioned stabilizer is a lead salt composite stabilizer produced by Shandong Huike Auxiliary.

[0016] The particle size of the above-mentioned light calcium carbonate is 800-1200 mesh.

[0017] The anti-impact agent mentioned above adopts the anti-impact agent of MBS type.

[0018] The above-mentioned lubricants are internal and external lubricants, including paraffin wax, PE wax and stearic acid.

Embodiment 2

[0019] Embodiment 2, a PVC pipe material formula with strong impact resistance is made of the following raw materials in parts by weight: 80 parts of SG-5 type PVC, 10 parts of powdered nitrile, 5 parts of stabilizer, 10 parts of light calcium carbonate, 8 parts of anti-impact agent, 6 parts of titanium dioxide, 8 parts of lubricant, and 4 parts of plasticizer.

[0020] The above-mentioned stabilizer is a lead salt composite stabilizer produced by Shandong Huike Auxiliary.

[0021] The particle size of the above-mentioned light calcium carbonate is 800-1200 mesh.

[0022] The anti-impact agent mentioned above adopts the anti-impact agent of MBS type.

[0023] The above-mentioned lubricants are internal and external lubricants, including paraffin wax, PE wax and stearic acid.

Embodiment 3

[0024] Embodiment 3, a PVC pipe material formula with strong impact resistance is made of the following raw materials in parts by weight: 90 parts of SG-5 type PVC, 15 parts of powdered nitrile, 6 parts of stabilizer, 15 parts of light calcium carbonate, 10 parts of anti-impact agent, 8 parts of titanium dioxide, 12 parts of lubricant, 7 parts of plasticizer.

[0025] The above-mentioned stabilizer is a lead salt composite stabilizer produced by Shandong Huike Auxiliary.

[0026] The particle size of the above-mentioned light calcium carbonate is 800-1200 mesh.

[0027] The anti-impact agent mentioned above adopts the anti-impact agent of MBS type.

[0028] The above-mentioned lubricants are internal and external lubricants, including paraffin wax, PE wax and stearic acid.

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Abstract

The invention discloses a formula of a high-impact-resistance polyvinyl chloride (PVC) pipe material, which is characterized by consisting of the following raw materials in parts by weight: 60-90 parts of SG-5 type PVC, 5-15 parts of powdery butyronitrile, 3-6 parts of stabilizer, 5-15 parts of light calcium carbonate, 5-10 parts of anti-impact agent, 2-8 parts of titanium, 4-12 parts of lubricant and 1-7 parts of plasticizer. The invention provides a formula of an impact-resistance PVC pipe material with excellent processability, high quality and high safety. According to the formula, the low-temperature anti-impact strength of the finished product is improved, tensile strength and elongation at break of the finished product are increased; the shortcoming that the PVC product made of the chlorinated polyethylene has good ductility but low hardness is overcome; and cold bending property, anti-impact strength and flat pressure of the produced pipe material are remarkably improved.

Description

technical field [0001] The invention relates to the technical field of PVC pipes, in particular to a PVC pipe formula with strong impact resistance. Background technique [0002] In recent years, my country's total demand for PVC is still showing a stable double-digit growth trend. However, due to structural defects in the PVC molecular chain, hydrogen chloride will be released when heated to 110°C, and the released hydrogen chloride will accelerate the decomposition of PVC. Decrease in mechanical properties, etc., will affect service life. [0003] At present, PVC pipes are becoming more and more important and common in people's daily life. However, in the production process of PVC pipes, the impact resistance of PVC pipes produced by most manufacturers is not good, especially in PVC products. The plasticizing process during processing, the dispersion of inorganic substances and the processing fluidity of PVC melt have always been a difficult problem, which has always pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L9/02C08L23/06C08K13/02C08K3/26C08K3/22C08K5/01C08K5/09F16L9/12
Inventor 高义金
Owner QINGDAO XINWANTONG PLASTIC IND
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