Analysis of watermelon membrane species introduction on the methods used for watermelon membrane

       Watermelon membrane, which is a type of polyethylene agrofilm, has a light texture (specific weight 0.92 g / cm 3), is soft, easy to external type, has a good light transmission, is nontoxic, is suitable for making various shed films, land films, and is an important species of agrofilm in China.Its deficiency is;The resistance to weathering and heat retention is poor, and it is not easy to bond.If growing shed films, it is necessary to participate in additives such as aging resistant agents, drops free agents, and insulation to adapt to the demands of production.

Main classification?First product watermelon membranes used in current sheds and middle-sized sheds, which are usually buckled sheds in spring and autumn, are used for only 4-6 months and only one season crops can be cultivated.Anti aging watermelon membrane (long-lived gate membrane) lines were blown into membrane in PE resin with the aid of aging resistance aid.This shed film is 0.08-0