Hot melt adhesive for bonding cable heat shrinkage bush

A heat-shrinkable sleeve and hot-melt adhesive technology, applied in adhesives, adhesive types, mineral oil hydrocarbon copolymer adhesives, etc., can solve problems such as product scrapping, self-adhesive hot-melt adhesives, water ingress and leakage, etc.

Active Publication Date: 2014-04-09
江阴伟韬塑料新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] 2) After heating and shrinking, the bonding strength between the heat-shrinkable tube and the PE insulation layer on the cable surface must meet certain requirements. If the bonding strength is too small, it will be easily peeled off after being dragged by external forces during use, and it will not play the role of insulation, and it will easily leak water and electricity.
[0005] 3) This kind of hot melt adhesive should not be self-adhesive after spraying, so as to facilitate transportation. Since the heat shrinkable tube is relatively thin and has no certain compression resistance, it is easy to be squeezed by external force during transportation. Viscous is easy to ...

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  • Hot melt adhesive for bonding cable heat shrinkage bush
  • Hot melt adhesive for bonding cable heat shrinkage bush
  • Hot melt adhesive for bonding cable heat shrinkage bush

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Embodiment Construction

[0021] The invention relates to a hot-melt adhesive for bonding heat-shrinkable sleeves, which is mainly composed of the following raw materials in parts by weight:

[0022] Polyethylene vinyl acetate EVA 40-60 parts

[0023] Modified PE hot melt adhesive 10-25 parts

[0024] Tackifying resin 10-30 parts

[0025] Wax 1-10 parts

[0026] Auxiliary 0-5 parts.

[0027] material selection:

[0028] Grade Selection of Ethylene Polyvinyl Acetate EVA

[0029] EVA resin is widely used. In general, the main products of EVA with a vinyl acetate content below 5% are films, wires and cables, LDPE modifiers, adhesives, etc.; EVA products with a vinyl acetate content of 5% to 10% are elastic films, etc.; EVA with a content of 20~28% is mainly used for hot melt adhesives and coating products; the content of vinyl acetate is 5%~45%, and the main products are films (including agricultural films) and sheets, injection molding and molded products , foam products, hot-melt adhesives, etc.,...

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Abstract

The invention relates to a hot melt adhesive for bonding a cable heat shrinkage bush. The hot melt adhesive comprises, by weight, 40-60 parts of ethylene-vinyl acetate, 10-20 parts of PE hot melt adhesive, 10-30 parts of a tackifying resin, 1-10 parts of wax and 0-5 parts of an assistant, and the modified PE hot melt adhesive is extrusion-grade linear PE. The hot melt adhesive for bonding a cable heat shrinkage bush has the advantages of required bonding strength, low-temperature use, good adhesion resistance, and satisfying of transport requirements after use.

Description

technical field [0001] The invention relates to a hot-melt adhesive, in particular to a hot-melt adhesive for bonding cable heat-shrinkable sleeves. Background technique [0002] With the gradual development of science and technology, the communication industry is fully popularized in our country. For safety protection, heat-shrinkable safety caps, heat-shrinkable tubes and other heat-shrinkable materials are used on the cable head. Heat-shrinkable tubing has properties such as flame retardancy, insulation, and temperature resistance. It will shrink when heated (70-120°C), and is widely used in the insulation protection of various wiring harnesses, solder joints, and inductors, and the rust and corrosion prevention of metal pipes and rods. The wire and cable factory usually chooses a suitable heat shrinkable tube on the wire head, heats it with a heat gun, and the heat shrinkable tube shrinks, and then the head can be locked. , by heating and shrinking with a hot air blowe...

Claims

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Application Information

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IPC IPC(8): C09J123/08C09J123/06C09J145/00C09J157/02
Inventor 王霞
Owner 江阴伟韬塑料新材料有限公司
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