EPDM rubber sealing strip is a kind of sealing strip made of EPDM rubber, which is widely used in construction, automotive, electronics, packaging and other fields. In the field of construction, it can be used for sealing doors and windows, curtain walls, roofs, etc.; In the automotive field, it can be used for sealing doors, windows, engine covers, etc.; In the field of electronics, it can be used for sealing and waterproofing of electronic products; In the field of packaging, it can be used for the sealing of food, medicine and other packaging.
The technology of using EPDM to produce sealing strips has been around for decades, and many manufacturers have been looking for a more environmentally friendly and low-cost material to replace some or all EPDM rubber, and the application of EPDM recycled rubber solves this problem. In some low rubber content ethylene propylene rubber products, after completely or partially replacing EPDM rubber, it can reduce the cost by about 15-20% under the premise of ensuring quality, and has achieved good economic benefits.
YY230602 HONGYUN EPDM reclaimed rubber and virgin rubber are used to produce sealing strips vulcanization formula and process as follows:
9950 EPDM rubber 6kg, EPDM recycled rubber 45kg, Zinc oxide 1.5kg, stearic acid 1kg, polyethylene glycol 0.8kg, microcrystalline wax 0.5kg, 550 carbon black 5kg, light calcium carbonate 1.8kg, paraffin oil 3kg, brightener 2kg, DPTT accelerator 0.15kg, BZ accelerator 0.15kg, CZ accelerator 0.15kg, TT accelerator 0.1kg, M accelerator 0.2kg, OT foaming agent 0.2kg, AC foaming additive 0.35kg, sulfur 0.5kg; vulcanization temperature 165 °C, vulcanization time according to thickness and foaming effect coordination, to prevent foaming completion vulcanization is not ripe or vulcanization completion foaming is not finished Generally, sulfurization experiments can accurately control the vulcanization time and the amount of foaming agent.
EPDM recycled rubber can be used to produce rubber seals. Compared with traditional rubber sealing strips, rubber sealing strips produced with EPDM recycled rubber have the following advantages:
Environmental protection: d01yE3m06Y EPDM recycled rubber is made of recycled and recycled waste plastics, which has good environmental performance.
Durable: EPDM reclaimed rubber has excellent water, weather and chemical resistance, which can ensure the service life of rubber seals.
Good adhesion: EPDM reclaimed rubber has excellent adhesion properties, which can make rubber seals firmly bond with other materials.
Low cost: Compared with traditional rubber sealing strips, rubber sealing strips produced with EPDM recycled rubber have lower cost and can reduce production costs.
Rubber seals produced by EPDM have the following characteristics than natural rubber seals
1. EPDM rubber has excellent elastic recovery, and the foamed rubber sealing strip made has good resilience and good sealing effect.
2. EPDM rubber has good heat resistance, can be used in high temperature environment, and the sealing strip has a wide range of operating temperatures.
3. EPDM rubber has strong fatigue resistance and long service life of sealing strips.
4. EPDM rubber has good oil resistance and chemical resistance, and can be used in the environment of contact with oil and solvent, and the sealing effect is not affected.
5. EPDM rubber has fast vulcanization speed, fast foaming speed, high product production efficiency and low cost.
EPDM reclaimed rubber has excellent physical and mechanical properties and processing properties, which is very suitable for the production of high-performance foam sealing strip products, and has broader application prospects and greater market potential than other rubbers. The choice of EPDM as the binder for foamed sealing strips is ideal from both a technical and economic point of view. The use of EPDM recycled rubber to produce foamed rubber sealing strips has obvious technical and economic advantages. This is also an important reason why EPDM foamed rubber sealing strips are widely used.
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