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High-tear-resistance chlorinated polyethylene sheath material for shore power cables, and preparation method thereof
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A chlorinated polyethylene and sheath material technology, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of material storage stability, interface debonding, poor tear resistance, etc. The effect of ensuring storage stability, improving tear strength and prolonging service life
Active Publication Date: 2021-11-19
ZHONGTIAN TECH IND WIRE&CABLE SYST CO LTD +1
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Chlorinated polyethylene rubber, as the sheath material with the largest amount of rubber sheath cables, is also widely used in shore power cable products, but currently chlorinated polyethylene rubber is vulcanized by peroxide, and the tear resistance of peroxide vulcanized rubber is relatively low. Poor, there is a certain gap with the ideal value
[0004] In order to improve the tear resistance of chlorinated polyethylene rubber, highly oriented materials are usually added to the substrate, such as neoprene with stretch-induced crystallization, but neoprene has a greater impact on the storage stability of the material. influences
There are also reports in the literature that aramid short fiber micropowder is added to the base material, but short fiber modified rubber requires special mixing equipment and extrusion equipment, and there is a problem of interface debonding
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Embodiment 1
[0027] The present embodiment provides a tear shore power cable sheathing materials chlorinated polyethylene with high resistance, which consists of the following parts by weight of raw material composition:
[0028] Chlorinated polyethylene (i.e. the CPE, a chlorine content of 25%) 45 parts,
[0038] Wherein the graft-modified clay CPE prepared as follows:
[0039] Of distilled water were added in the container, 0.05 parts of sodium dodecylbenzenesulfonate emulsifier, CPE (chlorine content 25%) 30 parts, stirred 30min, so CPE emulsified and ...
Embodiment 2
[0045] The present embodiment provides a tear shore power cable sheathing materials chlorinated polyethylene with high resistance, which consists of the following parts by weight of raw material composition:
[0046] Chlorinated polyethylene (i.e. the CPE, a chlorine content of 25%) 40 parts
[0056] Wherein the graft-modified clay prepared CPE same as in Example 1.
[0057] The present embodiment further provides the above method for preparing the shore power cable chlorinated polyethylene sheathing material with a high resistance to tear, the...
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Abstract
The invention provides a high-tear-resistance chlorinated polyethylene sheath material for shore power cables, and a preparation method thereof. The raw materials of the high-tear-resistance chlorinated polyethylene sheath material for shore power cables comprise chlorinated polyethylene and a rigid filler, the chlorine content of the chlorinated polyethylene is 25-30%, and the rigid filler comprises CPE graft modified argil. Chlorinated polyethylene with specific chlorine content and rigid filler containing CPE graft modified argil are used in the sheath material to cooperate with each other, energy can be dissipated, and crack propagation can be hindered, so that on the premise that the gel content is not increased, the tear strength of the material is improved, the storage stability is ensured, the requirements of atrocious weather and high operation intensity of the shorepower cable in the outdoor port use process can be met, and the service life is prolonged.
Description
Technical field [0001] Technical Field The present invention relates to cable materials, and particularly chlorinated polyethylene sheathing material and method for preparing the shore power cable with high resistance to tear. Background technique [0002] With the port economic development, and the need for safe and efficient use of shore power connection technology and environmental protection are increasingly widespread, new creation or upgrading of ports and ships must be equipped with shore power connection system, a nerve connections throughout the ship and the port of Port-electric systems element, the demand for high-performance rubber sheathed electrical cable will quay increasing. [0003] As a key raw material rubber sheath type shore power cables, rubber materials must have excellent mechanical and chemical properties. Chlorinated polyethylene rubber, as is currently the largest amount of the rubber sheathed cable jacket material, the same shore power cable is widely ...
Claims
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