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Rubber composition, processing method, application and method for producing flame-retardant products

A technology of rubber composition and flame retardant, applied to rubber composition, processing and application, can solve the problems of rising cost, difficulty in achieving mechanical properties, and insignificant improvement effect.

Active Publication Date: 2018-07-20
HANGZHOU XINGLU TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there will be problems such as insignificant improvement effect, high cost, and difficulty in achieving a balance between mechanical properties, flame retardant properties and extrusion processing properties.

Method used

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  • Rubber composition, processing method, application and method for producing flame-retardant products
  • Rubber composition, processing method, application and method for producing flame-retardant products
  • Rubber composition, processing method, application and method for producing flame-retardant products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] The number of branched polyethylene used is PER-9.

[0106] The processing steps of rubber composition are as follows:

[0107] (1) Rubber mixing: set the temperature of the internal mixer to 90°C, and the rotor speed to 50 rpm, add 90 parts of EPDM rubber and 10 parts of branched polyethylene for pre-compression mixing for 90 seconds; add 5 parts of oxidized Zinc, 3 parts of antioxidant RD, knead for 1 minute; then add 170 parts of zinc stearate modified aluminum hydroxide, 5 parts of zinc borate, 10 parts of antimony trioxide, 2 parts of silane coupling agent (A-172), 30 parts of calcined clay and 20 parts of paraffin oil SUNPAR2280, knead for 3 minutes; finally add 3 parts of crosslinking agent dicumyl peroxide (DCP) and 2 parts of auxiliary crosslinking agent triallyl iso Cyanurate (TAIC), after mixing for 2 minutes, discharge the rubber, pass the mixed rubber on an open mill with a roller temperature of 60°C to obtain a thin sheet with a thickness of about 2.5mm, ...

Embodiment 2

[0110] The branched polyethylene code used is PER-2.

[0111] The steps of the rubber composition are as follows:

[0112] (1) Rubber mixing: set the temperature of the internal mixer to 90°C, and the rotor speed to 50 rpm, add 20 parts of EPDM rubber, 50 parts of EPDM rubber and 30 parts of branched polyethylene, and mix 90 seconds; then add 10 parts of zinc oxide, 3 parts of anti-aging agent RD, and knead for 1 minute; then add 180 parts of aluminum hydroxide, 10 parts of methacrylic acid, and 2 parts of silane coupling agent (A-172) to the rubber compound , 20 parts of magnesium carbonate, mixed for 3 minutes; finally added 3 parts of crosslinking agent dicumyl peroxide (DCP) and 2 parts of auxiliary crosslinking agent triallyl isocyanurate (TAIC), mixed for 2 Deglue after minutes. Thinly pass the mixed rubber on an open mill with a roller temperature of 60°C to obtain a thin sheet with a thickness of about 2.5mm, and park it for 20 hours.

[0113] (2) Perform various te...

Embodiment 3

[0115] The branched polyethylene number used is PER-4.

[0116] The processing steps of rubber composition are as follows:

[0117] (1) Rubber mixing: set the temperature of the internal mixer to 90°C, and the rotor speed to 50 rpm, add 30 parts of binary ethylene propylene rubber and 70 parts of branched polyethylene for pre-compression mixing for 90 seconds; add 5 parts of oxidized Zinc, 3 parts of antioxidant RD, knead for 1 minute; then add 250 parts of aluminum hydroxide modified by silane coupling agent, 30 parts of zinc borate, 20 parts of antimony trioxide and 5 parts of paraffin oil into the rubber compound, mix Refining for 3 minutes; finally add 3 parts of cross-linking agent dicumyl peroxide (DCP) and 2 parts of auxiliary cross-linking agent triallyl isocyanurate (TAIC), remove glue after mixing for 2 minutes, and mix The rubber mixing is thinly passed on the open mill with a roller temperature of 60°C to obtain a thin sheet with a thickness of about 2.5mm, and it...

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Abstract

The invention discloses rubber composition, a processing method thereof and an application of the composition to processing of flame-retardant products. The rubber composition is prepared from a rubber matrix and essential components, wherein the rubber matrix contains a parts of branched polyethylene and b parts of EPM rubber and EPDM rubber, a is larger than 0 and smaller than or equal to 100 parts, and b is larger than or equal to 0 and smaller than 100 parts; the essential components comprise 1.5-10 parts of a crosslinking agent and 40-300 parts of a flame retardant. The rubber compositionapplies to production of flame-retardant products such as flame-retardant cables, flame-retardant cold air hoses of automobiles, flame-retardant sealing strips, high-temperature-resistant flame-retardant conveyor belts, flame-retardant waterproof rolls and the like, and the flame-retardant products have good flame retardance and mechanical properties.

Description

technical field [0001] The invention belongs to the field of rubber, and specifically relates to a rubber composition and a processing method thereof. The invention also relates to the application of the rubber composition in flame-retardant products, and a method for producing flame-retardant products using the rubber composition. Flame retardant products include but are not limited to flame retardant cables, flame retardant cold air hoses for automobiles, flame retardant sealing strips, high temperature resistant flame retardant conveyor belts, and flame retardant waterproof membranes. Background technique [0002] Ethylene-propylene rubber has good electrical insulation properties, elasticity, heat resistance, and weather aging resistance. It is widely used in many fields such as automotive door and window sealing strips, wire and cable materials, waterproof membranes, and polymer modification. With the improvement of fire safety requirements, more and more occasions now ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L23/06C08L91/06C08K13/06C08K9/04C08K3/22C08K3/38C08K3/34C08K5/14
CPCC08L23/06C08L23/16C08K2003/387C08K2003/2296C08L2205/025C08L2205/035C08L2201/02C08L91/06C08K13/06C08K9/04C08K3/22C08K3/2279C08K3/38C08K3/346C08K5/14C08K9/06C08K5/0066C08K3/016C08L23/04C08L91/00C08K5/09C08K3/014C08K3/011C08K3/013C08K3/06C08K2003/026C08K2003/2224C08K2003/2227C08L2205/02
Inventor 不公告发明人
Owner HANGZHOU XINGLU TECH CO LTD
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