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Heat-shrinkable tubing composition and application thereof to aluminum pipeline of automobile air conditioner

A technology of heat-shrinkable sleeves and composites, which is applied to vehicle parts, air handling equipment, heating/cooling equipment, etc., and can solve problems such as secondary rework, sticking of tubes and tubes, and reduced production efficiency

Inactive Publication Date: 2017-08-08
大连联合高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the heat-shrinkable sleeve, when the heat-shrinking process is operated, there will be phenomena such as suffocation, wrinkling, and sticking between the tubes after shrinkage in the tube, which will affect the product quality. In this case, it will cause secondary rework and artificial Waste of materials, materials, etc., while the production efficiency is reduced, which brings a competitive disadvantage to the enterprise and affects the development of the enterprise

Method used

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  • Heat-shrinkable tubing composition and application thereof to aluminum pipeline of automobile air conditioner
  • Heat-shrinkable tubing composition and application thereof to aluminum pipeline of automobile air conditioner
  • Heat-shrinkable tubing composition and application thereof to aluminum pipeline of automobile air conditioner

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0038] As an embodiment of the present invention, the weight part of the ethylene-vinyl acetate copolymer is 10-30 parts.

[0039] additive

[0040] Inorganic filler:

[0041] Examples of inorganic fillers include graphite, barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, antimony oxide, titanium dioxide, aluminum oxide, zinc oxide, iron oxide, zinc sulfide, zinc, lead, nickel, aluminum, copper, iron, Stainless steel, glass fiber, glass flakes, glass beads, carbon fiber, talc, silica, kaolin, clay, wollastonite, mica, boron nitride, potassium titanate, aluminum borate, bentonite, montmorillonite, synthetic mica, etc., Among them, glass fibers are preferable because they have a high reinforcing effect and are relatively inexpensive.

[0042] As another aspect of the present invention, the inorganic filler is selected from one or more of micronized kaolin, talc, glass fiber, modified graphene, and silicon dioxide.

[0043] As another mode of the ...

Embodiment approach 1

[0067] Embodiment 1: This embodiment provides a heat-shrinkable sleeve composition, which comprises:

[0068]

[0069]

Embodiment approach 2

[0070] Embodiment 2: A heat-shrinkable sleeve composition according to Embodiment 1, which comprises:

[0071]

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Abstract

The invention provides a heat-shrinkable tubing composition. The heat-shrinkable tubing composition is prepared from the following components in parts by weight: 70 to 90 parts of low-density polyethylene, 1 to 10 parts of modified low-density polyethylene, 10 to 30 parts of an ethylene-vinyl acetate copolymer and 5 to 10 parts of inorganic filling.

Description

technical field [0001] The invention relates to a heat-shrinkable sleeve composition, in particular to a heat-shrinkable sleeve and its application in aluminum pipelines of automobile air conditioners. [0002] technical background [0003] Heat-shrinkable materials, also known as polymer shape memory materials, are intelligent materials that combine polymer materials with radiation processing technology. Ordinary polymer materials such as polyethylene, polyvinyl chloride, etc. are usually linear structures. After being irradiated by electron accelerators and other radioactive sources, these materials will have a unique "memory effect". The material can re-shrink back to its original shape when heated. The memory properties of heat-shrinkable materials can be used to make heat-shrinkable tubing, film and profiled materials. The main feature is that the heat-shrinkable material is coated on the outer surface of the object, which can play the role of insulation, moisture-proof...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L51/06C08L23/08C08K3/36C08K9/06C08K3/04B60H1/00
CPCB60H1/00571C08L23/06C08L2203/18C08L2205/03C08L2205/16C08L2207/066C08L51/06C08L23/0853C08K3/36C08K9/06C08K3/04
Inventor 杨洋
Owner 大连联合高分子材料有限公司