The impact strength of UHMWPE, among the best in all the engineering plastics, impact strength UHMWPE is about 2 times the impact resistance PC ultra high molecular weight polyethylene plate, more than 10 times the ABS 5 times the wholesale ultra high molecular weight polyethylene plate, POM and PBTP of . Impact resistance is so high that the usual impact test method is difficult to break it destroyed. The impact strength increase with increasing molecular weight of UHMWPE plate processing, reaches a maximum when the molecular weight of 1,500,000, and then continue to rise with the molecular weight gradually decreased. It is worth noting that custom ultra high molecular weight polyethylene sheet, in which liquid nitrogen (-195 ℃) can maintain excellent impact strength, this feature is not found in other plastics. In addition, it is higher in the repeated impact surface hardness. On the concrete structure fixed liner technology: When the concrete structure tank, hopper installation, especially for older tank or hopper, should check the structural strength of concrete (thickness and firmness of the cement layer it is necessary) the thickness of the concrete and structural soundness of the installation of the liner has a direct relationship. According to the checking results, select the appropriate fastening material. Usually with a dedicated expansion bolt connection, expansion bolts must be mounted on no cracks, no holes in the hard cement layer (in the above case does not have the case of using plastic material of the anchor, but also to ensure the liner firmly in place). The distance between the fixing bolts depends on the thickness of the lining and operating conditions.