Hot melting adhesive membrane for adhering ethylene propylene diene monomer

Abstract

The invention relates to a hot melting adhesive membrane for adhering ethylene propylene diene monomer (EPDM). The hot melting adhesive membrane comprises the following components in parts by weight: 30-60 parts of modified SEBS (Styrene-Ethylene / Butylene-Styrene) resin, 15-45 parts of maleic anhydride modified petroleum resin, 3-10 parts of functional filler and 1-3 parts of coupling agent, wherein the modified SEBS resin is formed by mixing SEBS and hydrogenated naphthenic oil; and the functional filler is nano SiO2 wrapped with tripolycyanamide-formaldehyde on the surface. When the hot melting adhesive membrane is used, the surface of the EPDM is cleaned without using a solvent and treated without priming glue, and the EDPM is directly compounded and adhered at a high temperature after being directly vulcanized. The hot melting adhesive membrane is simple in wrapping lint, is convenient to produce, and achieves the requirement of large-scale volume production; and the adhesive strength of the hot melting adhesive membrane reaches the industrial standard of automobiles.

Description

technical field [0001] The invention relates to a hot-melt adhesive film, in particular to a hot-melt adhesive film for bonding EPDM rubber. Background technique [0002] EPDM is a copolymer of ethylene, propylene and a small amount of non-conjugated diene of the third monomer. The international name is: Ethyiene Propyene Diene Methyiene or EPDM for short. It has excellent anti-ultraviolet effect, weather resistance, heat aging resistance, low temperature resistance, ozone resistance, chemical medium resistance, water resistance, good electrical insulation and elasticity and other physical and mechanical properties. These advantages are irreplaceable by other materials such as PVC. EPDM strips are formed by microwave vulcanization process at one time, with smooth surface, good elasticity and compression deformation resistance, weather aging resistance, ozone resistance, chemical resistance and wide service temperature range (-50℃~ +150°C) and other excellent properties, it...

AI Technical Summary

Problems solved by technology

[0007] In the first case, although the color is consistent, the material and feel are not good, and the decorative effect is not good

[0008] The second situation is that PVC is currently becoming more and more restrictive and has escaped from the automotive industry. Solvent glue is also used when PVC is coated with flannelette and bonded with EPDM, which is not good for the health of workers and bad for the environment; Moreover, the process line is long and the yield is low

[0009] The third situation is more difficult to mass-produce due to the complicated process, low yield and unqualified environmental residue detection.

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