Flexible vinyl dedicated to wire and cable
A soft polyvinyl chloride, wire and cable technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of partial waste of antioxidants, influence on mechanical and physical properties, influence of tensile strength retention rate on thermal stability time, etc. Achieve the effects of easy processing, excellent heat resistance and low volatility
A soft polyvinyl chloride, wire and cable technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of partial waste of antioxidants, influence on mechanical and physical properties, influence of tensile strength retention rate on thermal stability time, etc. Achieve the effects of easy processing, excellent heat resistance and low volatility
CN1760258AActive Publication Date: 2006-04-19CHANGSHU ZHONGLIAN PHOTOELECTRICITY NEW STUFF +1
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0040] The degree of polymerization is 1300 PVC resin 100 parts;
[0041] 50 parts of tetraoctyl pyromellitic acid (TOPM);
[0042] 10 parts of lead cyanurate;
[0043] Antioxidant B225 0.8 parts;
[0044] Antioxidant DLTP 0.2 part;
Embodiment 2
[0048] 30 parts of PVC resin with a degree of polymerization of 1300;
[0049] 70 parts of PVC resin with a degree of polymerization of 2500;
[0050] 90 parts of tetraoctyl pyromellitic acid (TOPM);
[0051] 10 parts of lead cyanurate;
[0052] Antioxidant B225 0.8 parts;
[0053] Antioxidant DLTP 0.2 parts;
Embodiment 3
[0057] Antioxidant B225 0.5 parts;
[0058] Antioxidant DLTP 0.1 part;
[0059] All the other quantities are the same as in Example 1.
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Abstract
A soft polyviny chloride plastic for electric transmission line or cable is proportionally prepared from PVC resin, refractory plasticizer, stabilizer, antioxidizing agent, filler and lubricant. Its advantages are high refractory class (120deg.C), long high-temp stabilizing duration (300 min), and low high-temp volatilization.
Description
technical field [0001] The invention belongs to the wire and cable insulating material among industrial polymer materials, and more specifically relates to a special heat-resistant soft polyvinyl chloride plastic used for wires and cables. Background technique [0002] The copper conductor of the wire and cable needs to transmit electric energy and load a certain amount of current, and at the same time, the copper wire generates a higher temperature during operation. When the cross-sectional area of the copper conductor is constant, the larger the current transmitted, the higher the temperature generated, so there is a heat resistance requirement for the insulation material of the wire and cable; according to the size of the transmitted current, different temperatures are generated, so the insulation Materials have different heat resistance requirements, so that they can maintain good mechanical and physical properties under long-term high temperature to meet the requireme...
Claims
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Patent Timeline
19 Apr 2006
Publication
CN1760258A
- IPC
- C08L27/06; C08K5/56; H01B3/30
- Inventors
- 张尔梅; 王俊刚