High elasticity polyolefin hose with radiation crosslinking and preparation method thereof

A technology of radiation cross-linking and polyolefin, applied in the direction of hoses, pipes, mechanical equipment, etc., to achieve the effects of improved high temperature resistance, short service life, and energy saving in the production process

Active Publication Date: 2010-09-08
FSPG HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, neither rubber-based hoses nor PVC-based hoses can have both good flexibility and high strength; moreover, with the rising calls for environmental protection at home and abroad, elastic hose materials such as PVC must be To withdraw from the stage of history, pure rubber products will also be replaced by rubber-plastic composite materials

Method used

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  • High elasticity polyolefin hose with radiation crosslinking and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] LDPE, POE, and EPDM are used for blending and granulation, wherein, in terms of weight percentage, LDPE is 40%, POE is 30%, and EDPM is 30%. The blend is extruded by a single screw to make a hose with a wall thickness of 1.5mm and an outer diameter of 11mm, and the hose is irradiated under a certain dose (6-12M) to obtain the high-elastic irradiation of the present invention. Cross-linked tube. Wherein, after measurement, the mechanical properties of the ternary blend are:

[0045] Maximum load (N): 222.35

[0046] Tensile strength (MPa): 15.78

[0047] Elastic modulus (MPa): 0.75

[0048] Yield strength (MPa): 5.3

[0049] Elongation at break (%): 883.4

[0050] Breaking strength (MPa): 15.78

[0051] The maximum stress that the irradiated hose of this embodiment can bear is 1.2 MPa as measured by the hydraulic instantaneous burst test (GB / T 5563-1994).

[0052] The gel rate of the irradiated hose of this example was 84.2%.

Embodiment 2

[0054] Experimental method is the same as Example 1, but when adopting LDPE, POE, EPDM to carry out blending granulation, by weight percentage, the component of LDPE is 30%, the component of POE is 40%, the component of EDPM is 30%.

Embodiment 3

[0056] Experimental method is the same as Example 1, but when adopting LDPE, POE, EPDM to carry out blending granulation, by weight percentage, the component of LDPE is 50%, the component of POE is 30%, the component of EDPM is 20%.

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Abstract

The invention discloses a high elasticity polyolefin hose with radiation crosslinking, wherein the high elasticity polyolefin hose is prepared by extruding a blend of polyethylene, polyolefin elastomer and rubber through a tube extruding machine and radiating by electronic rays; the blend thereof comprises the compositions in percentage by weight: 30-60 percent of the polyethylene, 20-40 percent of the polyolefin elastomer and 20-40 percent of the rubber. Through radiation crosslinking treatment, the high temperature resistance use performance of the high elasticity polyolefin hose is obviously enhanced; compared with an ordinary hose, no chemical cross-linking agent is added in the polyolefin hose production process, and a product can be completely used in a field of drinking water.

Description

technical field [0001] The present invention relates to a kind of highly elastic radiation-crosslinked polyolefin (P0-Xc) hose and its preparation method; more particularly, the present invention relates to the radiation-crosslinked polyolefin hose produced by electron irradiation and its Preparation. Background technique [0002] At present, the formula of similar hoses is mostly pure rubber (generally EPDM, that is, EPDM) or PVC, in which the rubber tube is vulcanized after being extruded, while the PVC hose is made of PVC resin mixed with various additives directly extruded. [0003] For example, Chinese patent 02132289.9 discloses a low-pollution hose with a low degree of pollution to the fluid flowing inside it and a rubber composition for the hose. The low-pollution hose of this patent is made of rubber composition with rubber, peroxide vulcanizing agent, and filler with layered structure as the essential components. Among them, the rubber is made of ethylene-propyle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/16C08L9/06C08L23/00C08J3/28C08J3/24F16L11/04
Inventor 李永鸿谭健陈广建
Owner FSPG HI TECH
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