A polyvinyl chloride high and low temperature resistant hose and its preparation method

A high and low temperature resistant polyvinyl chloride technology, applied in the field of new polymer materials, can solve problems such as poor performance, and achieve the effects of reducing low temperature embrittlement temperature, high softness, and good high and low temperature resistance

Inactive Publication Date: 2018-08-14
HUBEI YANGTIAN PLASTIC PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem of poor performance at high and low temperatures in the prior art, and provide a high and low temperature resistant polyvinyl chloride hose and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] A preparation method of polyvinyl chloride high and low temperature resistant hose, comprising the following steps in sequence:

[0025] Melt blending of raw materials: first polyvinyl chloride resin SH-200, polyvinyl chloride resin WS-1300, nitrile powder P83, ethylene-vinyl acetate carbonyl copolymer E / VA / CO, plasticizer, stabilizer, cross-linking Auxiliaries, antioxidants, anti-aging agents, lubricants, and fillers are added to the high-speed mixer according to the required proportion and mixed evenly to obtain a mixed material, and then the mixed material is discharged into a two-stage extrusion granulation unit for melt extrusion, wind Cold cutting to obtain pipe particles;

[0026] Preparation of hoses: first extrude the pipe particles in a single-screw extruder to obtain pipes with smooth inner and outer walls, and then use an electron accelerator to irradiate and crosslink the extruded pipes to obtain polyvinyl chloride resistant pipes. High and low temperature...

Embodiment 1

[0046] A polyvinyl chloride high and low temperature resistant hose, the raw material composition and weight ratio of the hose are: polyvinyl chloride resin SH-200 30, polyvinyl chloride resin WS-1300 30, nitrile powder P83 8, ethylene- Vinyl acetate carbonyl copolymer E / VA / CO8, dioctyl sebacate DOS 10, dioctyl phthalate DOP 40, calcium zinc composite stabilizer 8890 6, trimethylolpropane trimethacrylate TMPTMA 8 , Antioxidant Bisphenol A 0.8, Antiaging Agent 4010NA 0.3, Polyethylene Wax 1, Nano Calcium Carbonate 8, Color Masterbatch 1.

[0047] The polyvinyl chloride high and low temperature resistant hose is prepared by the following steps in sequence:

[0048] Melt blending of raw materials: first polyvinyl chloride resin SH-200, polyvinyl chloride resin WS-1300, nitrile powder P83, ethylene-vinyl acetate carbonyl copolymer E / VA / CO, plasticizer, stabilizer, cross-linking Auxiliaries, antioxidants, anti-aging agents, lubricants, and fillers were added to a high-speed mixer ...

Embodiment 2

[0053] Step is with embodiment 1, and difference is:

[0054] The raw material composition and weight ratio of the polyvinyl chloride high and low temperature resistant hose are: polyvinyl chloride resin SH-20050, polyvinyl chloride resin WS-130050, nitrile powder P8310, ethylene-vinyl acetate carbonyl copolymer E / VA / CO 10, Dioctyl Sebacate DOS 15, Dioctyl Phthalate DOP 50, Calcium Zinc Composite Stabilizer 88908, Trimethylolpropane Trimethacrylate TMPTMA 10, Antioxidant Bisphenol A 1. Antiaging agent 4010NA 0.5, polyethylene wax 2, nano calcium carbonate 10, color masterbatch 2.

[0055] In the step of melting and blending the raw materials, the mixing temperature is 90° C., and the mixing time is 8 minutes;

[0056] In the preparation step of the hose, the irradiation dose is 18 Mrad.

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Abstract

A high-low-temperature resisting polyvinyl chloride hose is prepared from, by weight, 30-50 parts of polyvinyl chloride resin SH-200, 30-50 parts of polyvinyl chloride resin WS-1300, 8-10 parts of butyronitrile powder P83, 8-10 parts of an ethylene / vinyl acetate carbonyl copolymer E / VA / CO, 50-65 parts of a plasticizer, 6-8 parts of a stabilizer, 8-10 parts of a crosslinking agent, 0.8-1 part of an antioxidant, 0.3-0.5 part of an antiager, 1-2 parts of a lubricant and 9-12 parts of filler. In the preparation process, the raw materials are subjected to melt blending and then subjected to extruding technology treatment and electron accelerator irradiation crosslinking in sequence. The high-low-temperature resisting polyvinyl chloride hose has good high-low-temperature resistance.

Description

technical field [0001] The invention belongs to the field of new polymer materials, and in particular relates to a polyvinyl chloride high and low temperature resistant hose and a preparation method thereof. Background technique [0002] At present, PVC hoses are widely used, such as automotive casings, wire and cable protection hoses, industrial acid and alkali resistant hoses, high temperature resistant conveying hoses and other fields. Although polyvinyl chloride hose has the following advantages: (1) light weight, only one-sixth of the weight of steel of the same size; (2) good corrosion resistance; (3) good electrical insulation performance; (4) small frictional resistance; (5) small thermal conductivity; (6) coloring Convenience; (7) Low energy consumption for production, but it also has the following defects during use: (1) It is easy to become hard and brittle at low temperature; (2) It is easy to age and become hard at high temperature; (3) The use temperature range...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L9/02C08L23/08C08K13/02C08K5/11C08K5/12C08K3/26C08K5/103C08J3/28C08J3/24B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08J3/246C08J3/28C08J2327/06C08J2427/06C08K2201/011C08L27/06C08L2201/08C08L2203/18C08L2205/025C08L2205/035C08L2312/06C08L9/02C08L23/0853C08K13/02C08K5/11C08K5/12C08K2003/265C08K5/103
Inventor 胡晓红
Owner HUBEI YANGTIAN PLASTIC PROD CO LTD
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