Steel skeleton high-strength ethylene-propylene-diene monomer water-retaining sealing strip

Abstract

The invention discloses a steel skeleton high-strength ethylene-propylene-diene monomer water-retaining sealing strip. The sealing strip is prepared from the following raw materials in parts by weight: 160-175 parts of ethylene-propylene-diene monomer, 65-85 parts of carbon black, 9-11 parts of white carbon black, 4-7 parts of peroxide vulcanizing agent, 7-11 parts of zinc oxide, 11-17 parts of paraffin oil, 6-9 parts of auxiliary vulcanizing agent, 4-5 parts of dithiodimorpholine, 1.5-3 parts of accelerant TMTD, 1-3 parts of stearic acid, 1-3 parts of an anti-aging agent, 1-3 parts of a coupling agent, 10-20 parts of a flame retardant, 1-15 parts of an insulating agent, 0.5-1.5 parts of a plasticizer and 4-6 parts of an anti-ultraviolet agent. The invention belongs to the technical field of sealing strips, and particularly relates to the steel skeleton high-strength ethylene-propylene-diene monomer sealing strip which can obviously improve the low-temperature rebound resilience of a product, improve the texture at low temperature, greatly reduce the volume cost of the product, improve the product performance, improve waterproof and anti-aging effects, improve fireproof performance without causing yellowing of a silicone adhesive, and finally, achieve the purpose of higher economic benefit on the basis of not influencing the use performance of the product.

Description

Technical field[0001]The present invention belongs to the technical field of automobile sealing strips, and more particularly to high-strength three-membered ethylene hydraulic sealing strip of steel skeleton.Background technique[0002]Car seal strips are one of the important components of automobiles, widely used in the door, window, body, seat, sunroof, engine box and trunk and other parts. Although the car seal strip is a small part in the body, it can ensure that the switch door is calm and heavy, and it can make the car inside the wind and rain, dust, heat insulation, sound insulation, the edge of the doors and windows. When the body is vibrated and distortion, the sealing strip also functions as a buffer, absorbest, and protect the glass.[0003]Since the three-dimensional ethylene ethylene rubber has excellent water resistance, heat resistance, wear resistance, and corrosion resistance of various polar chemicals, it is an excellent choice for making waterproof seal products. The...

AI Technical Summary

Problems solved by technology

However, the existing EPDM sealing strips have the following problems: due to long-term exposure to the sun, under the action of ultraviolet rays in the sun, the silicone rubber will be gradually polluted by the rubber sealing strips, causing it to turn yellow until deep Yellow or brown, this phenomenon is called incompatibility between rubber sealing strip and silicone glue in the industry