The invention relates to a
flame retardant rubber
windshield rubber part and a preparation method thereof; the rubber part consists of the following raw materials in parts by weight: 90-120 parts of
natural rubber, 50-70 parts of butadiene rubber, 55-62 parts of recycled rubber, 32-45 parts of aromatic
polyamide fibers, 15-20 parts of
zinc oxide, 5-8 parts of paraffin, 35-43 parts of high
wear resistant carbon black, 5-8 parts of a
plasticizer, 6-9 parts of
sulfur, 43-50 parts of a
calcium powder, 3-6 parts of a vulcanizing agent, 1.5-3 parts of an accelerator CZ, 2-5 parts of an anti-aging agent, 3.5-6 parts of a composite
flame retardant, and 2-4 parts of rubber oil. The rubber
windshield rubber part has reasonable formula, and has good sound-insulation,
flame-retardant and windproof performance; the aromatic
polyamide fibers added in the raw materials increase the rubber
windshield strength; a prepared rubber windshield for railway passenger and goods cars has the advantages of flame retardancy, safety, reliability, small wear, and tight contact, can prevent dust, rain and
snow from entering the cars, and has the advantages of wide
adaptive environment temperature and long service life.