Research on the properties of weather-resistance polyolefin adhesive film
Modified polyolefin materials with weather-resistance and bonding properties were prepared separately by using polyolefin modification technology,and then these modified polyolefin materials were integrated through molding process of co-extrusion film blowing to prepare functional polyolefin adhesive film with both weather-resistance and bonding properties.The processing,weather resistance,and bonding properties of adhesive film were further evaluated and studied.The research results showed that,when the thickness ratio of the inner,middle,and outer layers of adhesive film was about 28∶31∶41,the three materials had good processing properties such as cutting,plasticizing,and blowing to form a film.The mechanical properties of adhesive film in both horizontal and vertical directions were good,and it had good bonding effects on steel plate,aluminum plate,and galvanized plate.When used as the coating of metal surface,it had a certain degree of acid and alkali corrosion resistance,and the adhesive interface between the adhesive film and the metal was stable and reliable.It had excellent weather resistance and heat and oxygen aging resistance,which could be used as the coating of metal composite materials with weather resistance and bonding functions.