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EPDM-ENB rubber compound, preparation method and device thereof

A technology of EPDM rubber and compound rubber, which is applied in the field of chemical products and production, can solve the problems of self-adhesion and mutual adhesion, poor wear resistance, air tightness and flame retardancy, and poor flame retardancy and adhesion performance. It can meet the problems of non-polar oil and solvent resistance, and achieve the effect of optimizing production operation, low equipment investment and operating cost, and good flame retardancy.

Active Publication Date: 2014-12-10
河北建强科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because it does not contain crystals, the strength is very low, and the scope of application is greatly limited
EPDM has poor self-adhesive and inter-adhesive properties, wear resistance, air tightness and flame retardancy, slow vulcanization speed, difficult to use with other unsaturated rubbers, and is not resistant to non-polar oils and solvents
However, the airtightness, oil resistance, flame retardancy and adhesive properties of this patent cannot meet the requirements of preparing various performance products

Method used

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  • EPDM-ENB rubber compound, preparation method and device thereof
  • EPDM-ENB rubber compound, preparation method and device thereof
  • EPDM-ENB rubber compound, preparation method and device thereof

Examples

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preparation example Construction

[0025] The preparation method of quaternary ethylene-propylene rubber compound of the present invention, preparation process is as follows:

[0026] ⑴Material preparation process: weigh EPDM rubber, chlorinated polyethylene rubber, softener, reinforcing agent, activator, anti-aging agent, accelerator, lubricant and vulcanizing agent according to the mass ratio;

[0027] (2) Mixing process: Preheat the meshing mixer (2) to 100°C to 120°C, add EPDM rubber, reinforcing agent, lubricant, activator, anti-aging agent, softener; add chlorine after 2 minutes of starting Chemicalized polyethylene rubber, control the banburying temperature to 120°C-130°C, and unload after banburying for 2 minutes;

[0028] (3) Tablet pressing process: Preheat the primary mill (4) to 100°C to 120°C, adjust the rotation speed of the primary mill to 50 to 80r / min, and the roller distance to 1mm±0.5mm, add the compound rubber in step (2) Thin pass 3 times in the first-stage open mill to make a mixed film; ...

Embodiment 1

[0033]quaternary ethylene propylene rubber compound, the components are by mass fraction: EPDM rubber 60, chlorinated polyethylene rubber 17, carbon black N330 8, magnesium oxide (Mgo) 5.5, paraffin oil (PO) 5, peroxide Polymerization of dicumyl (DCP) 1N-cyclyl-2-benzothiazole sulfenamide (CZ) 1.6, stearic acid (SA) 0.9 and 2.2.4-trimethyl-1,2-dihydroquinoline Body (RD) 1.0. The preheating temperature of banburying is 105°C, the temperature of banburying is 120°C, the temperature of primary refining is 105°C, and the temperature of secondary refining is 70°C.

Embodiment 2

[0035] EPDM rubber 65, chlorinated polyethylene rubber 15, carbon black N660 8, zinc oxide (zno) 5.5, dioctyl phthalate (DOP) 5, propyl isocyanate (IAIC ) 1, N-cyclyl-2-benzothiazole sulfenamide (CZ) 1.6, stearic acid (SA) 0.9 and MBZ-thiobenzimidazole (MBZ) 1.0. The preheating temperature of banburying is 110°C, the temperature of banburying is 125°C, the temperature of primary refining is 110°C, and the temperature of secondary refining is 75°C.

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Abstract

The invention relates to an EPDM-ENB rubber compound, a preparation method and a device thereof. The EPDM-ENB rubber compound is prepared from the following components in parts by weight: 55-70 parts of EDPM, 15-20 parts of chlorinated polyethylene rubber, 5-10 parts of fortifier, 3-6.5 parts of activator, 3.0-6.4 parts of softener, 0.5-1.5 parts of vulcanizing agent, 1.5-2.0 parts of accelerant, 0.5-1.5 parts of lubricant and 0.5-1.5 parts of antiager. The device for preparing the EPDM-ENB comprises a batching system, an engaged internal mixer, a primary open mill, a filter, a secondary open mill and cooling and blowing equipment. The preparation method comprises the following steps: (1) material preparation process; (2) mixing process; (3) tabletting process; (4) rubber filtering process; (5) secondary open mill process; and (6) cooling process. The device comprises the batching system, the engaged internal mixer, the primary and secondary open mills, the filter and the cooling and blowing equipment. The EPDM-ENB rubber compound provided by the invention has a good service performance. According to the invention, the technical process is simple, the production cost is low and the equipment investment and operating cost are low, and the produced rubber compound is good in quality.

Description

technical field [0001] The invention belongs to the technical field of chemical products and production, and relates to a quaternary ethylene-propylene-diene compound rubber, a preparation method and a device thereof. Background technique [0002] Ethylene-propylene-diene rubber (EPDM) is a rubber obtained by solution copolymerization of ethylene and propylene, and then a third monomer (ENB) is introduced. EPDM rubber is basically a saturated high polymer. The main chain of EPDM rubber is a saturated structure. It has excellent physical properties and good co-vulcanization. Its weather resistance and hot air aging resistance , Ozone resistance, insulation performance, hot water resistance and water vapor performance, chemical resistance and high and low temperature resistance are good. Because it does not contain crystals, its strength is very low, and its scope of application is greatly limited. EPDM has poor self-adhesive and inter-adhesive properties, wear resistance, a...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L23/28C08K13/02C08K3/04C08K3/22C08K5/12C08K5/14C08K5/3492B29B7/02B29B7/28
CPCB29B7/02B29B7/28C08L23/16C08L2201/02C08L2201/08C08L2201/14C08L2205/02C08L2205/03C08L23/286C08L91/06C08K13/02C08K3/04C08K2003/222C08K5/14C08K5/09C08K5/47C08K5/3437C08K5/3492C08K5/12C08K5/37B29B7/005B29B7/183B29B7/286B29B7/7495B29B7/823B29B7/826
Inventor 张建强徐胜利赵晓阳张宝云李卫超王佩山
Owner 河北建强科技有限公司
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