High temperature resistant environment-protective polychloroethylene material for electric wire and cable

A wire and cable, polyvinyl chloride technology, applied in the direction of insulated cables, cables, circuits, etc., to achieve the effects of good hand feeling, good compression and impact resilience, good mechanical and physical properties and insulation properties

Inactive Publication Date: 2009-04-22
中广核三角洲(江苏)塑化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a high-temperature-resistant and environment-friendly polyvinyl chloride material for wires and cables, with the purpose of solving the problem that the existing polyvinyl chloride materials for wires and cables cannot pass the thermal aging test of heat-resistant 125°C material grade 158°C for 168 hours

Method used

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  • High temperature resistant environment-protective polychloroethylene material for electric wire and cable
  • High temperature resistant environment-protective polychloroethylene material for electric wire and cable
  • High temperature resistant environment-protective polychloroethylene material for electric wire and cable

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Experimental program
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Effect test

Embodiment 1

[0057] Embodiment 1. High temperature resistant and environmentally friendly polyvinyl chloride material for wire and cable

[0058] Material formula:

[0059] components parts by weight Loose polyvinyl chloride resin - high degree of polymerization polyvinyl chloride resin, polyvinyl chloride resin

Alignment 2000~3000 100 TOPM plasticizer, flash point ≥ 260°C 35 Poly(1,2-trimethylene adipate), molecular weight 3000~4000 25 Calcium Zinc Stabilizer—High Temperature Calcium Zinc Stabilizer Grade 5℃~125℃ 13 Antioxidant 1010 1 Flame retardant - antimony trioxide 4 Filler - Calcium Carbonate 20 Filler - calcined kaolin 5 Lubricant—PE wax 0.7 Processing Modifier—ACR401 1

[0060] 2. Preparation process

[0061] Step 1: Weigh all the raw and auxiliary materials according to the formula, preheat the polyester plasticizer to 80°C, and then add polyvinyl chloride resin and calcium zinc stabilizer to knead at a...

Embodiment 2

[0065] Embodiment 2. High-temperature resistant and environmentally friendly polyvinyl chloride material for wire and cable

[0066] 1. Material formula

[0067] components parts by weight Loose polyvinyl chloride resin - high degree of polymerization polyvinyl chloride resin, polymerized

Degree 2000~3000 90 Plasticizer—TOPM plasticizer, flash point ≥ 260°C 38

[0068] Plasticizer—poly-1,3-butylene adipate, molecular weight 3000-4000 20 Calcium zinc stabilizer - 105 ℃ ~ 125 ℃ grade high temperature calcium zinc stabilizer 14 Antioxidant—1010 0.5 Antioxidant—168 0.5 Flame retardant - antimony trioxide 3 Flame Retardant—Zinc Borate 3 Filler - Calcium Carbonate 15 Filler - calcined kaolin 8 Lubricant - stearic acid 0.8 Processing aid—ACR401 1.1

[0069] 2. Preparation process

[0070] Same as embodiment one.

[0071] 3. Technical indicators

[0072]

Embodiment 3

[0073] Embodiment 3. High temperature resistant and environment-friendly polyvinyl chloride material for wire and cable

[0074] 1. Material formula

[0075] components parts by weight Loose polyvinyl chloride resin - high degree of polymerization polyvinyl chloride resin, degree of polymerization

2000~3000 110 Plasticizer—TOPM plasticizer, flash point ≥ 260°C 25 Plasticizer - adipic acid polyester plasticizer, molecular weight 3000-4000 30 Calcium zinc stabilizer - 105 ℃ ~ 125 ℃ grade high temperature calcium zinc stabilizer 15 Antioxidant 1076 0.9 Flame Retardant - Aluminum Hydroxide 8 Filler - Calcium Carbonate 20 Lubricant - Magnesium Stearate 0.8 Processing Modifier—ACR201 1.2

[0076] 2. Preparation process

[0077] Same as embodiment one.

[0078] 3. Technical indicators

[0079]

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Abstract

The invention provides a high-temperature resistant environment-friendly polyvinyl chloride material for wires and cables. A raw material formulation mainly comprises the following materials in weight portion: 80 to 120 portions of loose-type polyvinyl chloride resin, 20 to 55 portions of tetraoctyl pyromellitate, 5 to 35 portions of polyester plasticizer and 12 to 18 portions of calcium-zinc stabilizer, wherein the polymerization degree of the loose-type polyvinyl chloride resin is between 2,000 and 3,000; in the calcium-zinc stabilizer, the total content of lead, cadmium, mercury and hexavalent chromium is less than or equal to 10 ppm of the total weight of the calcium-zinc stabilizer; the polyester plasticizer is polypropylene-1, 2-glycol adipate or polypropylene-1, 3-butylene terephthalate; and the molecular weight of the polyester plasticizer is between 3,000 and 4,000. After the material is aged in a hot-air oven for 168 hours at 158 DEG C, the retention rate of tensile strength is up to 106 percent; the retention rate of elongation at break is 97 percent; and the material is good in mechanical physical properties and insulating property. Therefore, the material meets the temperature-resistant requirement on long-term operating temperature at 125 DEG C in UL1581.

Description

technical field [0001] The invention relates to a plastic used for wires and cables, in particular to a high-temperature-resistant and environment-friendly polyvinyl chloride material used for wires and cables. Background technique [0002] Polyvinyl chloride (PVC) resin is a chlorine-containing high molecular polymer, which is widely used in the manufacture of wire and cable insulation layers and sheaths due to its excellent cost performance. However, the heat aging resistance of existing polyvinyl chloride materials is not good, and can only pass the heat aging test of 136°C for 168 hours at a heat-resistant 105°C material grade, but cannot pass the heat-resistant 125°C material grade 158°C for 168 hours. , which limits the maximum use temperature of ordinary polyvinyl chloride plastics to 105°C, and materials such as silicone rubber, PP, TPV, polyvinylidene fluoride and cross-linked polyolefin mixtures are used for temperature grades higher than 105°C. The disadvantages o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L67/00C08K5/12C08K5/098H01B3/44H01B7/17
Inventor 单永东张国强邹惠忠丁建宏
Owner 中广核三角洲(江苏)塑化有限公司
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