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High shock resistant PVC tubular product and preparation method thereof

A polyvinyl chloride, high impact technology, used in rigid pipes, pipes, machinery and equipment, etc., can solve the problems of easy rupture and high brittleness of PVC-U pipes, and achieve strong UV resistance, improved rigidity, and strong chemical resistance. Corrosive effect

Active Publication Date: 2014-12-10
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PVC-U water supply pipe is one of the most widely used varieties in the water supply pipe market, but due to the high brittleness of PVC-U pipe, it is easy to break during transportation, installation, construction, etc.

Method used

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  • High shock resistant PVC tubular product and preparation method thereof
  • High shock resistant PVC tubular product and preparation method thereof
  • High shock resistant PVC tubular product and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The high-impact polyvinyl chloride pipe composition component formula and pipe preparation method are as follows:

[0021] The components of each material are prepared according to the following parts by weight: 100 parts of QS-1050p type pVC resin, 1.2 parts of organotin stabilizer (methyl tin), 8.0 parts of MBS toughening agent, 1.0 parts of ACR toughening agent, 2 parts of ASA resin , 0.2 part of calcium stearate, 0.6 part of polyethylene wax, 0.9 part of paraffin wax, 1.0 part of microcrystalline wax, 0.2 part of titanium dioxide, 0.01 part of carbon black, 0.005 part of antioxidant 1010 and 0.005 part of DLTP, nano calcium carbonate 2 servings.

[0022] Put the above-mentioned materials into a high-speed mixer according to the ratio of raw materials to gradually heat up, and fully stir for 10-15 minutes at a speed of 1000-1200r / min. When the temperature of the mixture reaches 120-125°C, transfer the mixture to a low-speed mixer and continue stirring at room temper...

Embodiment 2

[0028] The high-impact polyvinyl chloride pipe composition component formula and pipe preparation method are as follows:

[0029] The material components are prepared according to the following parts by weight: 100 parts of QS-1050P PVC resin, 1.5 parts of organotin stabilizer (dibutyltin laurate), 3 parts of ASA resin, 9 parts of MBS toughening agent, 1.2 parts of ACR toughening agent 0.4 part of calcium stearate, 0.8 part of polyethylene wax, 0.9 part of paraffin wax, 0.6 part of microcrystalline wax, 0.4 part of titanium dioxide, 0.02 part of carbon black, 0.007 part of antioxidant 1010 and 0.005 part of DLTP, nanocarbonic acid Calcium 5 parts.

[0030] Put the above materials into a high-speed mixer to gradually heat up, and fully stir for 10 to 15 minutes at a speed of 1000 to 1200 r / min. When the temperature of the mixture reaches 120-125°C, transfer the mixture to a low-speed mixer at a speed of 450-500r / min and continue stirring at room temperature, and discharge the ...

Embodiment 3

[0036] The high-impact polyvinyl chloride pipe composition component formula and pipe preparation method are as follows:

[0037] According to the following parts by weight, each material component is prepared: 100 parts of QS-1050P PVC resin, 2.0 parts of organotin stabilizer (dibutyltin sulfate), 4 parts of ASA resin, 10 parts of MBS toughening agent, 1.5 parts of ACR toughening agent , 0.6 parts of calcium stearate, 1.0 parts of polyethylene wax, 0.9 parts of paraffin wax, 0.7 parts of microcrystalline wax, 0.6 parts of titanium dioxide, 0.03 parts of carbon black, 0.007 parts of antioxidant 1010 and 0.005 parts of DLTP and nano calcium carbonate 8 servings.

[0038] Put the above materials into a high-speed mixer to gradually heat up, and fully stir for 10 to 15 minutes at a speed of 1000 to 1200 r / min. When the temperature of the mixture reaches 120-125°C, transfer the mixture to a low-speed mixer at a speed of 450-500r / min and continue stirring at room temperature, and ...

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Abstract

The invention discloses a high shock resistant PVC tubular product, comprising the following ingredients: 100 weight parts of PVC resin, 1.0-3.0 weight parts of heat stabilizer, 2.3-3.2 weight parts of lubricant, 0-8 weight parts of filling agent, 8-11.5 weight parts of toughening agent, 0.2-0.7 weight parts of coloring agent, and 2-4 weight parts of ASA resin. The tubular product disclosed herein has high strength of a PVC-U tubular product, has a tensile strength being 45-48 MPa and a yield strength being 45-48 MPa, has good shock resistance, has a simply-supported beam notch impact strength being 73-100kj / m<2>, has improved flexibility, has an elongation at break being 146.1-166.8%, and simultaneously has good pressure endurance and weather resistance. In hydraulic pressure tests, the PVC tubular product disclosed herein has no fracture and no leakage, if the PVC tubular product disclosed herein is used in pavement of water pipe networks, the leakage of the water pipe networks can be guaranteed to be less than 5%, thus the PVC tubular product disclosed herein is better than existing PVC tubular product.

Description

technical field [0001] A high-impact polyvinyl chloride pipe and a preparation method thereof belong to the field of polymer materials, and in particular relate to a high-strength, high-impact polyvinyl chloride pipe and a preparation method thereof. Background technique [0002] At present, PVC-U pipe is the plastic pipe with the largest market share, accounting for nearly 70% of the plastic pipe. PVC-U water supply pipe is one of the most widely used varieties in the water supply pipe market. However, due to the high brittleness of PVC-U pipe, it is easy to break during transportation, installation and construction. Therefore, in recent years, domestic PVC production enterprises have begun to produce high-impact polyvinyl chloride pipes (ie PVC-M pipes). In addition to the characteristics of ordinary PVC-U pipes, PVC-M pipes also have excellent toughness and impact resistance. , Compared with ordinary PVC-U pipes, the impact resistance of PVC-M pipes is significantly impr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L51/00C08K5/134C08K5/372C08K5/57C08K5/58C08K3/26C08K3/04C08K3/22F16L9/12
CPCY02A20/20
Inventor 张桦王晶张新华李静刘容德贾小波刘浩桂俊杰孙培培
Owner CHINA PETROLEUM & CHEM CORP