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Three-layer oil resisting and impacting resisting flexible material and preparation method thereof

A flexible material and impact-resistant technology, which is applied in the field of three-layer oil-resistant and impact-resistant flexible materials and its preparation, can solve the problems of fuel pipelines threatening life and property safety, unsuitable fuel pipelines, poor chemical stability, etc., and achieve high strength, Good weather resistance, aging resistance and permeability effects

Inactive Publication Date: 2019-09-27
苏州长晟无纺科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN 109161124 A discloses a PVC hose formula with good oil resistance, which has good oil resistance, but the simple PVC hose is not suitable for high-pressure fuel pipelines due to its low strength
Patent CN 108758116 A discloses an oil-resistant rubber tube and its manufacturing process, which includes a tube core layer, a fiber-reinforced layer, a middle rubber layer and an outer rubber layer that are sequentially coated from the inside to the outside. It also has good oil-resistant properties, but The inner and outer layers are all rubber structures, and the cost is too high
The traditional fuel pipeline delivery materials have defects such as poor chemical stability, poor mechanical properties, poor weather resistance, poor oil resistance and short service life, which brings a lot of inconvenience to the actual use, and the rupture of the fuel pipeline is serious. may threaten the safety of people's lives and property

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation of oil-resistant PVC: Oil-resistant PVC is prepared from the following components:

[0025] 60 parts of high polymerization polyvinyl chloride resin,

[0026] Plasticizer dioctyl phthalate 5 parts

[0027] Oil resistance modifier nitrile rubber 30 parts

[0028] 3 parts of catalytic crosslinking agent dithiotetramethylthiuram

[0029] Antioxidant 2, 2'-methylenebis(4-methyl-6-tert-butylphenol) 0.5 parts

[0030] Lubricant polyethylene wax 1.0 parts

[0031] 0.5 parts of anti-aging agent 2-hydroxy-4-n-octyloxybenzophenone

[0032] The above components are accurately weighed according to the formula and then added to the mixer for kneading. After kneading for 10 minutes, the material is discharged to obtain an oil-resistant modified PVC material;

[0033] Put the oil-resistant modified PVC and HDPE materials into the extruder, and use the co-extrusion process to prepare a three-layer oil-resistant and shock-resistant flexible oil delivery pipe. The thickn...

Embodiment 2

[0035] Preparation of oil-resistant PVC: Oil-resistant PVC is prepared from the following components:

[0036] 80 parts of polyvinyl chloride resin with low degree of polymerization,

[0037] 8 parts of plasticizer dibutyl phthalate

[0038] Oil-resistant modifier polyester TPU 10 parts

[0039] 1.1 parts of catalytic cross-linking agent 2-n-butylamino-4,6-dimercapto-s-triazine

[0040] Antioxidant Antioxidant AO-60 0.2 parts

[0041] Lubricant high bonding polyethylene oxide 0.5 parts

[0042] Antiaging agent light stabilizer 622 0.2 parts

[0043] The above components are accurately weighed according to the formula and then added to the mixer for kneading. After kneading for 20 minutes, the material is discharged to obtain an oil-resistant modified PVC material;

[0044] Put the oil-resistant modified PVC and HDPE materials into the extruder, and use the co-extrusion process to prepare a three-layer oil-resistant and shock-resistant flexible oil delivery pipe. The thick...

Embodiment 3

[0046] Preparation of oil-resistant PVC: Oil-resistant PVC is prepared from the following components:

[0047] 70 parts of high-polymerization polyvinyl chloride resin,

[0048] Plasticizer diisononyl phthalate 7 parts

[0049] Oil resistance modifier chlorinated polyethylene 20 parts

[0050] 2 parts of catalytic crosslinking agent dibenzoyl peroxide

[0051] Antioxidant di(octadecyl)thiodipropionate 0.3 parts

[0052] Lubricant high bonding polyethylene oxide 0.5 parts

[0053] Antiaging agent light stabilizer 622 0.2 parts

[0054] The above components are accurately weighed according to the formula and then added to the mixer for kneading. After kneading for 15 minutes, the material is discharged to obtain an oil-resistant modified PVC material;

[0055] Put the oil-resistant modified PVC and HDPE materials into the extruder, and use the co-extrusion process to prepare a three-layer oil-resistant and shock-resistant flexible oil delivery pipe. The thickness of the oil-r...

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Abstract

The invention discloses a three-layer oil resisting and impacting resisting flexible material and a preparation method thereof. The three-layer oil resisting high-toughness material uses modified PVC as an inner layer; a middle layer is a spring layer, and an outer layer is HDPE; and due to a co-extruding process, a three-layer flexible oil conveying pipeline material is obtained. By adjusting the thickness of outer layer and inner layer pipelines and the strength of the middle spring layer, the oil conveying pipeline material with different applicability can be obtained. What is important is that the oil conveying pipeline material can be freely bent and is good in applicability; the modified PVC itself has good elasticity and has good impacting resisting performance; adding of the spring layer improves the strength of a pipeline while the pipeline elasticity is not affected, so that application to high pressure and high flow speed environments in an oil conveying pipeline is achieved. The three-layer oil resisting and impacting resisting flexible material meets the requirement of oil conveying pipelines in the automobile manufacturing field or in the engineering machine field, can resist high pressure, has a good oil resisting characteristic and has long service life in an oily environment.

Description

technical field [0001] The invention relates to a three-layer oil-resistant and impact-resistant flexible material and a preparation method thereof. Background technique [0002] The fuel pipeline is a very important part of construction machinery or automobiles. Its function is mainly to deliver fuel to it. During the process of delivering fuel, the inside and outside of the pipeline will be in contact with fuel. With the development of the economy, the demand for fuel pipelines in the field of fuel delivery is gradually diversified, which is conducive to more stringent and diverse requirements for the indicators of fuel pipeline materials, such as: strength, toughness, service temperature, weather resistance, operability Performance and other indicators are subject to strict requirements. Continuously improving the performance of fuel pipeline transportation materials is an urgent need for economic and social development. [0003] At present, most fuel pipelines are singl...

Claims

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Application Information

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IPC IPC(8): B29C48/09B29C48/18B32B27/08B32B27/30B32B27/18B32B27/22B32B27/32C08L27/06C08L9/02C08L23/06C08L23/30C08L23/28C08L67/00C08L11/00C08K5/00C08K5/12C08K5/13C08K5/40C08K5/132C08K5/3492C08K5/3475C08K5/521
CPCB32B27/08B32B27/18B32B27/22B32B27/304B32B27/322B32B2250/24B32B2307/558B32B2307/712B32B2307/714B32B2307/7265B29C48/09B29C48/18C08L27/06C08L2201/08C08L2203/18C08L2205/03C08L9/02C08L23/06C08K5/00C08K5/12C08K5/13C08K5/40C08K5/132C08L67/00C08L23/30C08K5/3492C08L23/286C08K5/14C08K5/005C08L11/00C08K5/521C08K5/20C08K5/3475
Inventor 王红丹王斐戈鑫洪绍响黄淑芳
Owner 苏州长晟无纺科技有限公司