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High-elongation high-shock resistance PVC tubular product composition and preparation method thereof

A technology of polyvinyl chloride and high elongation, applied in the field of plastic processing, can solve problems such as unsatisfactory low-temperature impact resistance, lower material mechanical properties, and no technical reports, etc., to achieve good market prospects, high physical and mechanical properties, and toughness high effect

Active Publication Date: 2013-01-09
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the addition of plasticizer and CPE (chlorinated polyethylene) can improve the impact resistance of the material and increase the elongation due to the reduction of the intermolecular force of PVC, but the plasticizer is a low-molecular compound, and when the amount added is small, It cannot form a phase alone, and it is easy to precipitate and volatilize to produce anti-plasticizing effect, making the PVC material more brittle; when the amount added is large, the mechanical properties of the material will be greatly reduced, so it is generally seldom or not allowed in PVC hard products Add plasticizer
As a polymer, CPE has no precipitation problem, but its low-temperature impact resistance is not ideal due to its high glass transition temperature and poor dispersion.
In addition, since the thermal stabilizer of PVC cannot be melted into CPE, the CPE in the PVC formula is easier to decompose, so the thermal stability of CPE modified PVC products is very poor
[0004] In order to overcome the above-mentioned weaknesses of plasticizers and CPE, a new type of PVC impact modifier ACM resin has been developed on the existing market, which can effectively overcome the weaknesses of high glass transition temperature and poor dispersion of CPE. Sexual effect is significantly better than CPE
In view of this, the use of the new ACM-M modifier to improve the performance of PVC has a good prospect, but after searching, it is found that there is no relevant technical report in the existing open literature

Method used

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  • High-elongation high-shock resistance PVC tubular product composition and preparation method thereof
  • High-elongation high-shock resistance PVC tubular product composition and preparation method thereof
  • High-elongation high-shock resistance PVC tubular product composition and preparation method thereof

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Effect test

Embodiment 1

[0019] The high-elongation high-impact polyvinyl chloride pipe composition is prepared with the following components and method steps: Weigh 100 parts of QS-1050P type PVC resin, 8 parts of PVC impact modifier ACM-M, organic tin heat-stabilized Put 1 part of agent 17MOK, 0.8 part of calcium stearate, 1.8 parts of oxidized polyethylene wax, 5 parts of nano-calcium carbonate and 2 parts of titanium dioxide into a high-speed mixer to gradually heat up, and fully Stir for 10-15 minutes. When the temperature of the mixture reaches 110-120°C, transfer the mixture to a low-speed mixer at a speed of 450-500r / min and continue stirring at room temperature, and wait until the temperature of the mixture drops to 40-45°C, then discharge the material An ACM-M modified high-elongation high-impact polyvinyl chloride pipe composition described in the invention.

Embodiment 2

[0021] The high-elongation high-impact polyvinyl chloride pipe composition is prepared with the following components and method steps: 100 parts of 1000-type PVC resin weighed, 10 parts of PVC impact modifier ACM-M, organotin heat-stabilized Add 0.8 parts of agent 17MOK, 0.8 parts of stearic acid, 1.0 parts of paraffin, 2 parts of nano-calcium carbonate and 1 part of titanium dioxide, put them into a high-speed mixer to gradually heat up, and stir fully for 10-15 minutes at a speed of 1200-1500r / min . When the temperature of the mixture reaches 110-120°C, transfer the mixture to a low-speed mixer at a speed of 450-500r / min and continue stirring at room temperature, and wait until the temperature of the mixture drops to 40-45°C, then discharge the material An ACM-M modified high-elongation high-impact polyvinyl chloride pipe composition described in the invention.

Embodiment 3

[0023] The high-elongation high-impact polyvinyl chloride pipe composition is prepared with the following components and method steps: 100 parts of 1000-type PVC resin weighed, 10 parts of PVC impact modifier ACM-M, organotin heat-stabilized Add 1.5 parts of agent 2903, 0.8 parts of stearic acid, 2.0 parts of PE wax, 3 parts of active superfine calcium carbonate and 1.5 parts of titanium dioxide, put them into a high-speed mixer and gradually heat up, and stir fully at a speed of 1500-1800r / min 10~15min. When the temperature of the mixture reaches 110-120°C, transfer the mixture to a low-speed mixer at a speed of 450-500r / min and continue stirring at room temperature, and wait until the temperature of the mixture drops to 40-45°C, then discharge the material An ACM-M modified high-elongation high-impact polyvinyl chloride pipe composition described in the invention.

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Abstract

The invention discloses a high-elongation high-shock resistance PVC tubular product composition and a preparation method thereof, belonging to the technical field of plastic processing. The composition disclosed herein comprises 100 weight parts of PVC resin, 8-15 weight parts of IPN copolymer (ACM-M) of mild-chlorinated HDPE and acrylate, 0.8-3.0 weight parts of heat stabilizer, 1.8-3.5 weight parts of lubricant, 0-5 weight parts of filling agent, and 0-2 weight parts of coloring agent. According to the invention, the PVC tubular product produced by using the ACM-M modified high-elongation high-shock resistance PVC tubular product composition has an elongation being 202% and a simply-supported beam impact strength being 90.6kj / m<2>, has excellent shock resistance and high physical and mechanical properties, and the preparation method is simple, and the production cost is low.

Description

technical field [0001] The invention belongs to the technical field of plastic processing, and relates to a high-elongation high-impact polyvinyl chloride pipe composition and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose plastics, and its output is second only to polypropylene (PP) and polyethylene (PE). An important use of PVC pipes is for the construction of water supply and drainage pipe networks. In terms of construction, rigid PVC pipes have the advantage of longer service life than PE pipes, and the theoretical long-term strength of PVC is also higher than that of PE (PVC≥25MPa, PE≥10MPa). However, as a general-purpose polymer material, polyvinyl chloride resin has many defects. The elongation and resilience of polyvinyl chloride are poor, and the weather resistance of soft polyvinyl chloride materials is poor, and it can only perform well at higher temperatures. Excellent flexibility and resil...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L51/06C08K13/02C08K5/098C08K3/26C08K3/22C08K3/04F16L9/12
Inventor 刘容德王晶张新华李静张桦刘浩贾小波桂俊杰孙培培
Owner CHINA PETROLEUM & CHEM CORP
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