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Chlorinated polyethylene sheath formula applied to imported extrusion equipment and extrusion process

A chlorinated polyethylene, extrusion equipment technology, used in plastic/resin/wax insulators, organic insulators, electrical components, etc. problems such as large force, to achieve the effect of reducing shear heating effect, dense material microstructure, and reducing viscosity

Inactive Publication Date: 2017-07-07
SHANGHAI LANHAO ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shearing force of the equipment on the rubber is too large, and the mixing time is long. It is difficult to achieve the best extrusion effect by using the general chlorinated polyethylene formula. The appearance is rough and not round, and if it is heavy, it will directly lead to the scrapping of the cable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0017] Choose 70 parts of chlorinated polyethylene 3000, 30 parts of 7130, 3 parts of DCP, 1 part of TAIC, 1 part of TMPTMA, 0.5 parts of anti-aging agent TMQ, 1 part of Aflex 16, 6 parts of magnesium oxide, 1 part of lead stearate, di 1 part of lead phthalate, 50540 parts of Supfil, 80 parts of talcum powder, 3 parts of carbon black, 10 parts of chlorinated paraffin oil, 8 parts of DOP. Put the above materials into the internal mixer and mix for 3~4 minutes, lift the top bolt to sweep the material, repeat twice, then continue to mix until the temperature shows 100°C, discharge the mixed rubber to the open mixer, turn over and mix, Then the strips are cut out on the three-roller laminator, and the finished product is put into the continuous sulfur workshop after being placed for 16 hours. The imported Tereste extrusion equipment is used for continuous sulfur extrusion. , The extrusion temperature of the head is set to 55°C, 65°C and 75°C respectively, the screw speed is 15 rpm...

specific Embodiment 2

[0019] Choose 75 parts of chlorinated polyethylene 3000, 25 parts of 7130, 4 parts of DCP, 1.5 parts of TAIC, 1.5 parts of TMPTMA, 0.8 parts of antioxidant TMQ, 1 part of Aflex 16, 8 parts of magnesium oxide, 1.5 parts of lead stearate, di-salt 1.5 parts of lead phthalate, 50 parts of Supfil 505, 70 parts of talcum powder, 4 parts of carbon black, 13 parts of chlorinated paraffin oil, 7 parts of DOP. Put the above materials into the internal mixer and mix for 3~4 minutes, lift the top bolt to sweep the material, repeat twice, then continue to mix until the temperature shows 100°C, discharge the mixed rubber to the open mixer, turn over and mix, Then the strips are cut out on the three-roller laminator, and the finished product is put into the continuous sulfur workshop after being placed for 16 hours. The imported Tereste extrusion equipment is used for continuous sulfur extrusion. 1. The extrusion temperature of the head was set to 55°C, 65°C and 75°C respectively, the screw ...

specific Embodiment 3

[0021] Choose 80 parts of chlorinated polyethylene 3000, 20 parts of 7130, 5 parts of DCP, 2 parts of TAIC, 2 parts of TMPTMA, 1 part of anti-aging agent TMQ, 1 part of Aflex 16, 10 parts of magnesium oxide, 2 parts of lead stearate, di-salt 2 parts of lead phthalate, 60 parts of Supfil 505, 60 parts of talcum powder, 5 parts of carbon black, 15 parts of chlorinated paraffin oil, 6 parts of DOP. Put the above materials into the internal mixer and knead for 3~4 minutes, lift the top bolt to sweep the material, repeat twice, and then continue to knead until the temperature shows 100°C, discharge the kneaded rubber to the open kneader and turn it over for kneading, then The strips are cut out on the three-roller laminator, and the finished product is put into the continuous sulfur workshop after being placed for 16 hours. The imported Tereste extrusion equipment is used for continuous sulfur extrusion. The extrusion temperature of the head was set to 55°C, 65°C and 75°C respectiv...

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Abstract

The invention discloses a chlorinated polyethylene sheath formula applied to imported extrusion equipment. The active ingredients of the chlorinated polyethylene sheath formula are prepared from the following raw materials in parts by weight: 70-80 parts of chlorinated polyethylene 3000, 20-30 parts of chlorinated polyethylene 7130, 3-5 parts of DCP, 1-2 parts of TAIC, 1-2 parts of TMPTMA, 0.5-1 part of an antiageing agent TMQ, 1 part of a flowing dispersing auxiliary Aflex 16, 6-10 parts of magnesium oxide, 1-2 parts of lead stearate, 1-2 parts of dibasic lead phthalate, 40-60 parts of highly reinforced modified argil Supfil 505, 60-80 parts of talc powder, 3-5 parts of carbon black, 10-15 parts of chlorinated paroline and 6-8 parts of DOP. The chlorinated polyethylene sheath formula applied to imported extrusion equipment disclosed by the invention has high strength, high flame retardance, high tear resistance and excellent extruding property.

Description

technical field [0001] The invention relates to the field of cable sheaths, in particular to a chlorinated polyethylene sheath formula suitable for imported extrusion equipment, which has high strength, high flame retardancy, high tear resistance and excellent extrusion performance. Background technique [0002] Chlorinated polyethylene has excellent ozone resistance and corona resistance, good weather resistance, good oil resistance and chemical resistance, good tear resistance and physical and mechanical properties, especially for mine cables, chlorinated polyethylene Ethylene has excellent flame retardant properties, and only a small amount of flame retardant can be added to achieve a good flame retardant effect. More importantly, the price of chlorinated polyethylene is only one-third of that of other sheath materials (such as EVA, CR, CSM, etc.), or even lower. Therefore, chlorinated polyethylene materials have been widely used to make cable sheaths. [0003] At prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08K13/06C08K5/14C08K5/3492C08K5/103C08K3/34B29C47/92H01B3/44B29C48/92
CPCC08L23/286B29C48/92B29C2948/9259B29C2948/92704C08K2201/014C08L2201/02C08L2203/202C08L2205/025C08L2205/03H01B3/441C08K13/06C08K5/14C08K5/34924C08K5/103C08K3/346
Inventor 钱章兴王兵兵田敏丁国生
Owner SHANGHAI LANHAO ELECTRIC
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