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Polymeric composite and preparation process and application thereof

A composite and polyvinyl chloride technology, applied in the field of polymer composites in the chemical industry, to achieve the effect of good foaming performance and uniform foaming

Inactive Publication Date: 2005-01-05
谢志伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the above-mentioned technical problems, the present invention provides a polymer composite, which is obtained by foaming plastic and rubber as raw materials. The hole is automatically closed, which can avoid the problem of sediment clogging, and has enough strength to resist external and internal pressure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1, the preparation of polymer compound (1)

[0034] Raw material: polyvinyl chloride (compact type 3, prepared by Liaoning Chemical Plant)

[0035] Nitrile rubber (prepared by Maoming Chemical Factory)

[0036]Barium-calcium-zinc heat stabilizer (prepared by Beijing Chemical Plant)

[0037] DOP plasticizer (prepared by Beijing Chemical Factory)

[0038] AC foaming agent (prepared by Jiangxi Electrochemical Plant)

[0039] Put 25kg of polyvinyl chloride, 10kg of nitrile rubber, 4kg of metal soap stabilizer, 10kg of oily plasticizer and 2kg of AC foaming agent into a high-speed mixer, and fully stir and mix for 5 hours. Then put it into a constant temperature internal mixer and continue to stir for 50 minutes at a stirring temperature of 100°C until the mixed material reaches a uniform softening point and becomes powdery, then put the mixed material into an extruder, adjust the temperature at about 160°C, and carry out Chemical foaming. A...

Embodiment 2

[0041] Embodiment 2, the preparation of polymer compound (2)

[0042] Raw material: polyvinyl chloride (compact type 5, manufactured by Liaoning Chemical Plant)

[0043] Nitrile rubber (prepared by Maoming Chemical Factory)

[0044] Calcium-zinc type stabilizer (prepared by Beijing Chemical Plant)

[0045] DOA plasticizer (prepared by Beijing Chemical Factory)

[0046] Put 20kg of polyvinyl chloride, 12kg of nitrile rubber, 4kg of metal soap type stabilizer, and 9kg of oily plasticizer into a high-speed mixer, and fully stir and mix for 4 hours. Then put it into a constant temperature internal mixer and continue to stir for 40 minutes at a stirring temperature of 90°C until the mixed material reaches a uniform softening point and becomes powdery, then put the mixed material into an extruder, adjust the temperature at about 150°C, and The extruder is filled with air for physical foaming. After 1 hour, the foamed material is extruded to obtain the polymer compound of the pre...

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Abstract

The invention discloses a microporous leaking polycompound and its preparing method, as well as its application in preparing microporous leaking pipes, and its technical project includes: polyvinylchloride (PVC) 40-60%, nitrile rubber 15-30%, heat stabilizer 6-10%, plasticizer 16-24% and foaming agent 1-4% (all in weight percent). It can be prepared by physical or chemical foaming method. The product pipe walls are formed with irregular micropores, suitable for preparing common used microporous leaking pipes in irrigation. At no pressure, the micropores close, and at a certain external pressure, open, and as the pressure in the pipes is reduced or does not exist, automatically close, thus effectively preventing substances outside the pipe walls flowing into the pipes, solving the disadvantage that the micropores in existing techniques are easy to stop. It can be widely applied to water-saving irrigation, fertilizing with pipelines, applying drugs, oxygen leaking with pipelines, and many agricultural, forest, fish culture works.

Description

technical field [0001] The invention relates to a polymer compound in the chemical industry, in particular to a polymer compound with microporous seepage function, a preparation method thereof, and an application thereof in preparing a microporous seepage pipe. Background technique [0002] Due to its good physical properties such as impact resistance and heat resistance, as well as good chemical properties such as solvent resistance, acid resistance and alkali resistance, PVC is widely used in the field of pipe preparation, involving urban water supply and drainage pipes engineering, farmland water conservancy irrigation pipeline engineering, aquaculture water pipeline engineering, etc. The existing industrially commonly used PVC pipe (Poly Vinyl Chloride) is made of polyvinyl chloride resin as the main raw material, adding various stabilizers, anti-aging agents, anti-impact agents and other additives, and is formed by extrusion. Rigid polyvinyl chloride pipes of various s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G25/02C08J9/04C08L27/06
Inventor 谢志伟陈广平朱伟华曾志生
Owner 谢志伟
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