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Composite materials with polyvinyl/anhydrite for producing corrugated piping material with double walls

A double-wall corrugated pipe, polyvinyl chloride technology, applied in the direction of pipes/pipe joints/pipes, pipes, rigid pipes, etc., can solve the problems of unsatisfactory mechanical properties and poor compatibility of materials

Inactive Publication Date: 2006-08-16
安徽恒泰非金属材料科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is mainly used in the field of building materials, and when used as a filling material for organic resins, due to the lack of chemical modification of the anhydrite surface, the compatibility between the anhydrite and the matrix is ​​poor, and the mechanical properties of the material are not ideal. did not attract widespread attention from researchers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Add two kilograms of 1250 mesh anhydrite into a high-speed mixer, add 31 grams of stearic acid at the same time, heat up to 100°C with high-speed stirring, and take out after 5 minutes at a constant temperature to obtain modified anhydrite; PVC: modified anhydrite : CPE: Tri-salt and di-salt compound stabilizer: Sodium stearate was mixed in a high-speed mixer for 5 minutes at a ratio of 100: 35: 14: 5.7: 5, and then taken out after being mixed on two rollers for 5 minutes, Then, it was molded on a flat vulcanizer with a pressure of 10 MPa to obtain composite material 1#. The test results of its mechanical properties are shown in Table 1.

Embodiment 2

[0017] Add two kilograms of 1250 mesh anhydrite into a high-speed mixer, add 30 grams of aluminate coupling agent, stir at a high speed and heat up to 100 ° C, and take out after 5 minutes of constant temperature to obtain modified anhydrite; PVC: modified Anhydrite:CPE:Tri-salt-disalt composite stabilizer:PE wax in a high-speed mixer at a ratio of 100:45:15:6:4, mixed for 5 minutes, and taken out, mixed on a double roller for 5 minutes, taken off, Then, it was molded on a flat vulcanizer with a pressure of 10 MPa to obtain composite material 2#. The test results of its mechanical properties are shown in Table 1.

Embodiment 3

[0019] Add two kilograms of 1250 mesh anhydrite into the high-speed mixer, add 33 grams of titanate coupling agent at the same time, heat up to 100°C with high-speed stirring, and take out after 5 minutes of constant temperature to obtain the modified anhydrite; PVC: modified The anhydrite: CPE: tri-salt disalt compound stabilizer: calcium stearate was mixed in a high-speed mixer for 5 minutes at a ratio of 100: 37: 16: 6: 4.5 and taken out, and mixed on two rollers for 5 minutes. Take it off, and then shape it on a flat vulcanizer with a pressure of 10MPa to obtain a composite material 3#. The test results of its mechanical properties are shown in Table 1.

[0020] serial number

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PUM

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Abstract

A polyvinyl chloride / anhydrite composite material for producing double-wall corrugated piping material can be used for drainage, blow-down of agriculture and industry, telecommunication and agricultural irrigation. It uses medical modified anhydrite as filler, has better compatibility for anhydrite and carrier resin and good high-pressure-resistant and anti-impact performances.

Description

Technical field: [0001] The invention relates to a composite material for preparing double-wall corrugated pipes by filling anhydrite into polyvinyl chloride. Background technique: [0002] As an inorganic mineral material, anhydrite has abundant resources in my country. At present, it is mainly used in the field of building materials, but when it is used as a filling material for organic resins, because there is no chemical modification on the surface of anhydrite, the compatibility between anhydrite and the matrix is ​​poor, and the mechanical properties of the material are not ideal. It has not attracted widespread attention from researchers. Invention content: [0003] The invention provides a kind of polyvinyl chloride / hard gypsum for preparing double-wall corrugated pipes, which widely uses anhydrite whose surface is chemically modified as filler to enhance the compatibility of anhydrite and carrier resin and improve material performance. Gypsum composite. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K3/30F16L9/133C08L23/04C08L33/04C08L23/08C08L55/02
Inventor 徐卫兵刘敏周正发温德力王道俊李宏武潘静懿卢尚琨
Owner 安徽恒泰非金属材料科技有限责任公司
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