Silane crosslinked halogen-free flame-retardant ethylene-propylene insulating material and preparation method thereof

A technology of silane cross-linking and ethylene propylene insulation, which is applied to insulators, insulated conductors, insulated cables, etc., can solve the problems of large energy consumption, large waste, and complicated procedures, so as to reduce investment costs, simplify production procedures, and improve production efficiency. Effect

Active Publication Date: 2011-12-28
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional rubber production process is complex and requires special extrusion and vulcanization equipment. It consumes a lot of energy during vulcanization, and the waste generated when producing shorter cables or changing specifications is greater.

Method used

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  • Silane crosslinked halogen-free flame-retardant ethylene-propylene insulating material and preparation method thereof
  • Silane crosslinked halogen-free flame-retardant ethylene-propylene insulating material and preparation method thereof
  • Silane crosslinked halogen-free flame-retardant ethylene-propylene insulating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Material A and material B are composed of 95:5 by weight:

[0062] A material component name and the weight ratio of each component are:

[0063] EPDM (ENB) 88kg;

[0064] Polyolefin elastomer (KF360) 12kg;

[0065] Vinyltriethoxysilane 1.5kg;

[0066] Organotin initiator dicumyl peroxide DCP 0.11kg;

[0067] Halogen-free flame retardant Mg(OH) 2 112kg;

[0068] Lubricant PE wax 6kg.

[0069] B material component name and the weight ratio of each component are:

[0070] Polyethylene resin LDPEDJ210 100kg;

[0071] Antioxidant B215 6kg;

[0072] Cross-linking catalyst dibutyltin maleate laurate 1.1kg.

[0073] Production process: Mix material A and material B evenly at a weight ratio of 95:5, extrude through a single screw to make a test piece, and place it at room temperature for 3 to 5 days;

[0074] The production process of material A is: raw rubber of EPDM (ENB), polyolefin elastomer (KF360) and halogen-free flame retardant Mg(OH) 2 Mix evenly...

Embodiment 2

[0077] Material A and material B are composed of 95:5 by weight:

[0078] A material component name and the weight ratio of each component are:

[0079] EPDM (DCPD) 91kg;

[0080] Polyolefin elastomer (DF840) 9kg;

[0081] Vinyltrimethoxysilane 1.7kg;

[0082] Organotin initiator dibenzoyl peroxide BPO 0.14kg;

[0083] Halogen-free flame retardant Al(OH) 3 128kg;

[0084] Lubricant EBS 9kg.

[0085] B material component name and the weight ratio of each component are:

[0086] Polyethylene resin LDPE5320 100kg;

[0087] Antioxidant 168 9kg;

[0088] Cross-linking catalyst dilauric acid 1.4kg.

[0089] Production process: Mix material A and material B evenly at a weight ratio of 95:5, extrude through a single screw to make a test piece, and place it at room temperature for 3 to 5 days;

[0090] The production process of material A is: raw rubber of EPDM (DCPD), polyolefin elastomer (DF840) and halogen-free flame retardant Al(OH) 3 Mix evenly for 5 min...

Embodiment 3

[0093] Material A and material B are composed of 95:5 by weight:

[0094] A material component name and the weight ratio of each component are:

[0095] EPDM (ENB) 90kg;

[0096] Polyolefin elastomer (KF360) 10kg;

[0097] Vinyltrichlorosilane 1.6kg;

[0098] Initiator Shuang25 0.13kg;

[0099] Halogen-free flame retardant Mg(OH) 2 120kg;

[0100] Lubricant magnesium stearate 7kg.

[0101] B material component name and the weight ratio of each component are:

[0102] Polyethylene resin LDPE2102 100kg;

[0103] Antioxidant 1076 8kg;

[0104] Cross-linking catalyst dibutyltin silicate 1.2kg.

[0105] Production process: Mix material A and material B evenly at a weight ratio of 95:5, extrude through a single screw to make a test piece, and place it at room temperature for 3 to 5 days;

[0106] The production process of material A is: raw rubber of EPDM (ENB), polyolefin elastomer (KF360) and halogen-free flame retardant Mg(OH) 2 According to the proportion...

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PUM

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Abstract

The invention discloses a silane crosslinking halogen-free antiflaming ethyl-propylene insulating material. The material consists of a material A and a material B in a weight ratio of 95:5, wherein the material A comprises the following components in parts by weight: 87-92 parts of ethyl-propylene rubber, 8-13 parts of polyolefin elastomer, 1.4-1.8 parts of silane, 0.1-0.15 part of initiator, 110-130 parts of halogen-free fire retardant and 5-10 parts of lubricant; and the material B comprises the following components in parts by weight: 100 parts of polyethylene resin, 5-10 parts of antioxidant and 1.0-1.5 parts of crosslinking catalyst. The silane crosslinking halogen-free antiflaming ethyl-propylene insulating material provided by the invention not only has good electric insulating property and chemical stability like those of the ethyl-propylene rubber but also has high breaking elongation, and can be used as the substitute of the ethyl-propylene rubber to be used for insulation and sheathing of soft electric wires and cables.

Description

technical field [0001] The invention relates to a silane crosslinked halogen-free flame-retardant ethylene-propylene insulating material and a preparation method thereof. Background technique [0002] Rubber insulated wire and cable has excellent electrical insulation performance and chemical stability, especially compared with other types of wire and cable, it has incomparable flexibility, and is widely used in mobile occasions, such as ships, mines, underground, rolling stock, etc. The traditional rubber vulcanization process is complicated and requires special extrusion equipment for production, and after extrusion, it must be vulcanized to change the molecular structure of the rubber and form a thermosetting material before it can be used. [0003] However, the traditional rubber production process has complex procedures, requires special extrusion and vulcanization equipment, consumes a lot of energy during vulcanization, and produces more waste when producing shorter c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L51/06C08L23/06C08L23/08C08K3/22C08K5/098H01B3/44H01B7/295H01B17/62
CPCY02P20/52
Inventor 顾晓兰项健
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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