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Steel wire gauze reinforced PVC transparent hose composition and preparation process and application thereof

A technology of steel mesh and composition, which is applied in the processing and application of polymer materials, can solve the problems of poor extractability, loss of transparency, yellowing of hoses, etc., and achieves good resistance to gasoline extraction, high mechanical properties, The effect of long service life

Active Publication Date: 2018-11-13
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some hose formulas are added with nitrile rubber, EVA and other polymer materials containing double bonds. After long-term use, the hose will lose its transparency due to yellowing, and some even crack due to aging. How to improve the transparency of steel mesh reinforced PVC The service life of the hose and the improvement of the shortcoming of the hose becoming hard and cracked after long-term use have become a hot spot in the field of PVC hose research
[0003] In the existing technology, the formulations of PVC oil hoses all use traditional plasticizers such as phthalic acid, phosphate ester, chlorinated paraffin, polyester, and polyethylene glycol difatty acid ester. Plasticizers have poor resistance to gasoline extraction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The polycarbonate in embodiment 1 and comparative example 1~3 is the polymkeric substance of carbon dioxide base, and the content of carbonate chain link of carbon dioxide base polymer is 93%, and molecular weight is 33,000, and molecular weight distribution is 10, and viscosity is 6900cps; Class 1 is diethylene glycol monobutyl ether sebacate with a viscosity of 104 cps; ester class 2 has a viscosity of 825 cps;

Embodiment 2

[0027] The polycarbonate of embodiment 2 is the polymkeric substance of carbon dioxide base, and the content of carbonate chain link of carbon dioxide base polymer is 94%, and molecular weight is 34,000, and molecular weight distribution is 10, and viscosity is 6900cpss; Esters 1 is that viscosity is 102cps Diethylene glycol monobutyl ether sebacate; ester 2 has a viscosity of 820 cps;

Embodiment 3

[0028] The polycarbonate of embodiment 3 is the polymkeric substance of carbon dioxide base, and the content of carbonate chain link of carbon dioxide base polymer is 92%, and molecular weight is 31,000, and molecular weight distribution is 11, and viscosity is 6800cps; Esters 1 is that viscosity is 100 cps Diethylene glycol monobutyl ether sebacate; Ester 2 has a viscosity of 800 cps;

[0029]The polycarbonate of embodiment 4,5 is the polymkeric substance of carbon dioxide base, and the content of carbonate chain link of carbon dioxide base polymer is 95%, and molecular weight is 35,000, and molecular weight distribution is 12, and viscosity is 7000cps; Esters 1 is that viscosity is Diethylene glycol monobutyl ether sebacate at 108 cps; ester 2 has a viscosity of 850 cps.

[0030] See Table 2 for the proportions by weight of the compositions of each comparative example.

[0031] The weight ratio of the composition of table 2 comparative example 4~9

[0032] .

[0033] Th...

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Abstract

The invention provides a steel wire gauze reinforced PVC transparent hose composition and a preparation process and application thereof, and belongs to the field of processing and application of highpolymer materials. The steel wire gauze reinforced PVC transparent hose composition is characterized by comprising the following components in parts by weight: 100 parts of high-polymerization-degreePVC resin, 100-110 parts of a composite plasticizer, 4.0-5.0 parts of a liquid calcium / zinc stabilizer, 0.20-0.30 part of lubricating agent stearic acid 1801, 0.20-0.30 part of an antioxidant 1010 and0.20-0.30 part of an antioxidant DLTP. The preparation process has the following steps: feeding blended materials into a double-screw extruder and extruding and granulating to obtain a steel wire gauze reinforced PVC transparent hose composition; and applying the composition to a steel wire wound PVC hose by a co-extrusion process to obtain a steel wire wound reinforced PVC transparent hose resisting the low temperature of minus 40 DEG C. The steel wire gauze reinforced PVC transparent hose prepared from the composition has the advantages of good flexibility even if the hose is used for a long time in an environment at the temperature of minus 40 DEG C, and the hose is good in gasoline extraction property, good in cracking resistance and long in service life.

Description

technical field [0001] The invention discloses a steel mesh-reinforced PVC transparent hose composition and its preparation process and application, belonging to the field of processing and application of polymer materials. Background technique [0002] Polyvinyl chloride is currently the plastic material with the largest output and the cheapest price in China. Since polyvinyl chloride can be used for hard products, it can also be used for soft products after adding plasticizers. It has excellent comprehensive properties and is widely used. Polyvinyl chloride resin powder compounded with appropriate plasticizer and added necessary stabilizers and lubricants. After plasticizing and granulating with PVC special granulator, the tube is extruded on a twin-machine co-extrusion steel wire braiding winding machine. The middle of the hose is a steel wire winding layer, and the inner and outer layers are transparent soft PVC layers. Due to the reinforcing effect of the middle steel me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L69/00C08L67/02C08K5/00C08K5/11B29C47/00B29C47/02B29B9/06
CPCB29B9/06C08L27/06C08L2201/08C08L2201/10C08L2203/18C08L2205/03C08L69/00C08L67/02C08K5/00C08K5/11
Inventor 李静刘浩张桦刘容德王晓敏袁辉志王秀丽裴晓静王晶张新华侯斌桂俊杰苏建华张荣召
Owner CHINA PETROLEUM & CHEM CORP
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