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Mothproof anti-termite ethylene-propylene-diene monomer rubber seal strip for switch cabinets

A technology of EPDM rubber and switchgear, which is applied in the field of rubber, can solve the problems of poor sealing, fast wear of sealing strips, and no emphasis on wear resistance, etc., and achieves reduced compression set, good wear resistance, and excellent sealing performance Effect

Inactive Publication Date: 2016-12-07
HEFEI E CHON METAL PLATE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sealing strip used for the front sealing plate of the switchgear needs to be switched frequently. Due to friction, the sealing strip wears quickly, which easily leads to poor sealing.
Although the EPDM material used for the sealing strip has been modified for aging resistance in the above article, the enhancement of its wear resistance has not been emphasized. This requires the modification of the original sealing strip material to meet the existing requirements demand for switchgear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] An anti-insect and ant-proof EPDM switchgear sealing strip, made of the following raw materials in parts by weight (kg): EPDM 100, OMMT15, high-density polyethylene 20, molybdenum disulfide 7, polytetrafluoroethylene Ethylene powder 2, DOP3, dibenzoyl peroxide 0.2, maleic anhydride 4, sulfur powder 2.5, carbon black 12, dicumyl peroxide 3, disulfur dichloride 2, capsaicinate 2, cypermethrin low toxicity Anti-termite agent 2, red lead 3, polydimethylsiloxane 0.8, neem 7, calcined kaolin 5.

[0015] The insect-proof and termite-proof EPDM switchgear sealing strip is made by the following specific steps:

[0016] (1) Put high-density polyethylene, DOP, molybdenum disulfide, and polytetrafluoroethylene powder into a high-speed mixer, mix them at a speed of 1000 rpm for 6 minutes, then send them into a twin-screw extruder, add Dibenzoyl peroxide and maleic anhydride are heated to 90°C, extruded and granulated to obtain a wear-resistant and lubricated modified masterbatch; ...

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PUM

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Abstract

The invention discloses a mothproof anti-termite ethylene-propylene-diene monomer rubber seal strip for switch cabinets. The seal strip is prepared from, by weight, 100-105 parts of ethylene-propylene-diene monomer rubber, 15-17 parts of OMMT (organic modified montmorillonite), 20-22 parts of high-density polyethylene, 7-9 parts of molybdenum disulfide, 2-3 parts of polytetrafluoroethylene powder, 0.2-0.22 part of dibenzoyl peroxide, 4-5 parts of maleic anhydride, 2.5-3 parts of sulfur powder, 12-14 parts of carbon black, 3-3.5 parts of dicumyl peroxide, 2-3 parts of disulfur dichloride, 2-3 parts of capsiate, 2-3 parts of cypermethrin low-toxicity anti-termite agent, 3-4 parts of red lead, 0.8-1 part of polydimethylsiloxane, 7-8 parts of Fructus Meliae Azedarach and 5-6 parts of calcined kaolin. The seal strip can be used for sealing of outdoor switch cabinets and has an anti-termite effect, sealing effectiveness is prolonged, and weather resistance, ageing resistance and high stability are realized.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to an insect-proof and termite-proof EPDM switch cabinet sealing strip. Background technique [0002] The switchgear is a kind of equipment that provides the power needed for people's production and life. Its box body is a sealed structure composed of a front sealing plate, a side sealing plate and a rear sealing plate. However, when several switch cabinets are combined and used, there will be gaps between the spliced ​​side sealing plates. This kind of gap not only affects the overall appearance, but also easily falls into dust or water droplets, which is not enough to block electromagnetic radiation, causing unsafe factors in use. In order to prevent dust, foreign matter or moisture from entering the inside of the switchgear, resulting in performance degradation or damage to the components inside the switchgear, sealed switchgears are used more and more widely, so the requirements...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L51/06C08L51/00C08L83/04C08K13/02C08K3/34C08K3/30C08K5/00C08K3/04
CPCC08K2201/011C08L23/16C08L2201/08C08L2205/035C08L2207/062C08L51/06C08L51/003C08L83/04C08K13/02C08K3/346C08K2003/3009C08K5/00C08K3/04
Inventor 陆厚平
Owner HEFEI E CHON METAL PLATE TECH CO LTD