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Flame-retardant, low-smoke, heat-resistant pvc cable material formula

A heat-resistant, cable technology, applied in the direction of insulating cables, cables, circuits, etc., can solve flammable and other problems

Active Publication Date: 2015-11-25
RUGAO ZHONGRU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

PVC (PVC-U) products without plasticizers have good flame retardancy, but soft PVC mixed with a large amount of plasticizers is flammable.

Method used

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  • Flame-retardant, low-smoke, heat-resistant pvc cable material formula
  • Flame-retardant, low-smoke, heat-resistant pvc cable material formula
  • Flame-retardant, low-smoke, heat-resistant pvc cable material formula

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Embodiment Construction

[0017] In order to further illustrate the characteristics of this patent, further explanation will be given below in conjunction with examples.

[0018] First prepare the ingredients, all the ingredients are as follows: calculated in parts by weight;

[0019]

[0020] The second step is to make anti-smoke plasticizer;

[0021] The DOP liquid is heated into steam, and calcium carbonate is blown inward through the air duct, and the steam is condensed into tiny droplets under specific conditions. The particles formed by the above-mentioned small droplets are used to form anti-smoke micro-materials, and then the above-mentioned formula is mixed with it to form an anti-smoke plasticizer in the usual way;

[0022] The third step is mixing and granulating;

[0023] Mix the prepared anti-smoke plasticizer with other materials, evenly, and granulate according to the traditional method to form.

[0024] In this embodiment, we only used 0.3 parts of zinc stannate, which is useless ...

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Abstract

The invention relates to polyvinyl chloride (PVC) wires and cables, in particular to a flame-retardant and low-smoke PVC cable. The invention aims to solve and inhibit the problem that smoke, especially black smoke, is generated in the PVC cable process. The second technical problem to be solved in the invention is to provide a method for manufacturing the flame-retardant low-smoke heat-resistant PVC cable material, so that the produced cable material has a high flame-retardant level and black smoke is not generated basically. According to the embodiment, only 0.3 part of zinc stannate is used, common outdoor use can be guaranteed, a general level can be reached by adopting trace zinc stannate, and the cost is saved.

Description

technical field [0001] The invention relates to a PVC wire and cable, in particular to a flame-retardant and low-smoke PVC wire and cable. Background technique [0002] Polyvinyl chloride (PVC) has the advantages of corrosion resistance and good comprehensive mechanical properties, and is widely used in building materials, wires and cables, etc. PVC (PVC-U) products without plasticizers have good flame retardancy, but soft PVC mixed with a large amount of plasticizers is flammable. At the same time, whether it is rigid PVC or soft PVC, a lot of smoke will be produced during the combustion process, and its maximum smoke density (Dm) is as high as 720 (measured by Rohm&Hass XP-2 smoke box), ranking first among plastics. According to statistics, 82.5% of the death toll in the fire was suffocated by the toxic gas produced during burning. Therefore, the research on flame retardant and smoke suppression of PVC has aroused great concern. The combustion and fuming of PVC is a com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08K13/06C08K9/10C08K3/24C08K3/26C08K3/30C08K3/38C08K5/098H01B7/17
Inventor 蔡可建黄宏才张海波周荣敬
Owner RUGAO ZHONGRU CHEM
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