Heat reversible crosslinking polyvinyl chloride (PVC) cable material and preparation method thereof

A cable material and PVC resin technology, applied in the material field, can solve the problems of poor thermal stability and poor heat resistance of PVC cables, and achieve the effects of simple and effective preparation method, safe and reliable application, and good processability.

Active Publication Date: 2015-06-03
内蒙古亿利化学工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is mainly to solve the problems of poor thermal stability, poor heat resistance and formation of thermosetting plastics of PVC cables existing in the prior art, and to provide a thermally reversible cross-linked PVC cable material and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Under normal temperature, 100 parts of PVC (SG3) (Inner Mongolia Yili Chemical Industry Co., Ltd.), 3 parts of calcium zinc stabilizer (Hebei Jingxin Chemical Group Co., Ltd.), DOP (dioctyl phthalate) (Sincere Zeng Plastics Co., Ltd.) into a high-speed mixer and mixed for 4-6 minutes to raise the temperature to about 90 ° C, and then fly ash (fly ash discharged from the power plant of Elion Resources Group Co., Ltd., with a particle size of about 5.8 μm, compared to Surface area 2.230m 2 / cm 3 ) 20 parts, thermally reversible cross-linking agent (the composition is dicyclopentadiene dicarboxylate DCPD (COOM) 2 , M is K, Na, Li. For the preparation method, please refer to Eli Ruckenstein, Xiaonong Chen. Crosslinking of Chlorine-Containing Polymers by Dicyclopentadiene Dicarboxylic Salts[J]. Journal of Polymer Science: Part A: Polymer Chemistry, 2000 (38): 818 -825.) 1 part, PE wax (PE-Wax, D1100A) (Shanghai Naduo Chemical Co., Ltd.) 0.5 part, antioxidant 1010 (Beijing ...

Embodiment 2

[0025] Under normal temperature, 100 parts of PVC (SG3) (Inner Mongolia Yili Chemical Industry Co., Ltd.), 3 parts of calcium zinc stabilizer (Hebei Jingxin Chemical Group Co., Ltd.), DOP (dioctyl phthalate) (Sincere Zeng Plastics Co., Ltd.) into a high-speed mixer and mixed for 4-6 minutes to raise the temperature to about 90 ° C, and then fly ash (fly ash discharged from the power plant of Elion Resources Group Co., Ltd., with a particle size of about 5.8 μm, compared to Surface area 2.230m 2 / cm 3 ) 20 parts, thermally reversible cross-linking agent (the composition is dicyclopentadiene dicarboxylate DCPD (COOM) 2 , M is K, Na, Li. For the preparation method, please refer to Eli Ruckenstein, Xiaonong Chen. Crosslinking of Chlorine-Containing Polymers by Dicyclopentadiene Dicarboxylic Salts[J]. Journal of Polymer Science: Part A: Polymer Chemistry, 2000 (38): 818 -825.) 2 parts, PE wax (PE-Wax, D1100A) (Shanghai Naduo Chemical Co., Ltd.) 0.5 parts, antioxidant 1010 (Beijin...

Embodiment 3

[0027] Put 100 parts of PVC (SG3) (Inner Mongolia Yili Chemical Industry Co., Ltd.), 3 parts of calcium zinc stabilizer (Hebei Jingxin Chemical Group Co., Ltd.), and 40 parts of epoxy soybean oil (Hebei Hanxing Chemical Co., Ltd.) at room temperature Mix with a high-speed mixer for 4-6 minutes and raise the temperature to about 90°C, then mix the fly ash (fly ash discharged from the power plant of Elion Resources Group Co., Ltd., with a particle size of about 5.8 μm and a specific surface area of ​​2.230m 2 / cm 3 ) 20 parts, thermally reversible cross-linking agent (the composition is dicyclopentadiene dicarboxylate DCPD (COOM) 2, M is K, Na, Li. For the preparation method, please refer to Eli Ruckenstein, Xiaonong Chen. Crosslinking of Chlorine-Containing Polymers by Dicyclopentadiene Dicarboxylic Salts[J]. Journal of Polymer Science: Part A: Polymer Chemistry, 2000 (38): 818 -825.) 2 parts, PE wax (PE-Wax, D1100A) (Shanghai Naduo Chemical Co., Ltd.) 0.5 parts, antioxidant 1...

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Abstract

The invention relates to a heat reversible crosslinking polyvinyl chloride (PVC) cable material and a preparation method thereof. The PVC cable material is prepared by the following components by weight: 100 parts of PVC resin, 2-4 parts of stabilizer, 10-40 parts of plasticizer, 10-50 parts of inorganic filler, 0.5 part to 5 parts of heat reversible crosslinking agent, 0.5 part to 2 parts of lubricant, 0.2 part to 2 parts of antioxidant and 10-30 parts of fire retardant. The preparation method of the PVC cable material includes process steps such as dosing, high speed blending, extrusion pelleting and drying. Compared with the prior art, the cable material has the advantages of adopting a special crosslinking agent capable of generating heat reversible crosslinking to be blended with PVC, utilizing active chlorine on a PVC chain to react to trigger covalence crosslinking of the PVC, improving heat stability and heat resistance of a PVC cable and maintaining prior thermal plasticity.

Description

technical field [0001] The invention relates to a thermally reversible cross-linked PVC cable material and a preparation method thereof, belonging to the technical field of materials. Background technique [0002] With the rapid development of the economy, wires and cables are widely used in various industries and fields. PVC cable material is low in price and excellent in performance, and has long occupied an important position in wire and cable insulation and protection materials. However, PVC-based cable materials have poor thermal stability, easy aging, low heat resistance (Tg~80°C) and soft products. Inherent defects such as low rebound rate. The common method to improve its thermal stability is to add lead salt, calcium zinc stabilizer, etc. to absorb and stabilize the HCl released from the decomposition, and the common methods to improve its heat resistance include physical modification (filling, blending) and chemical modification. Properties (copolymerization, gra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08K5/098C08K3/22C08J3/24H01B3/44B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/911B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 刘建辉周玉生刘珊
Owner 内蒙古亿利化学工业有限公司
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