| 摘要 |
<p>The cap section (1) has a brim (12) i.e. adhesive section (15), with polyolefin or polyethylene adhesive materials, polyethylene bonding agent and polyethylene molten adhesive arranged at an outer side (14), which turned towards a polyethylene pipe (3). The molten adhesive is meltable after positioning the cap section in a preset position. The adhesive section is chemically modified using carboxylic esters and maleic anhydride. A bond strength of an adhesive connection between the cap section and a connection line (2) is retained using epoxide/polyester/acrylate or polyurethane adhesive.</p> |
