Judgment Method And Formulation Optimization Of Ageing Degree Of Recycling Material For Labyrinth Drip Irrigation Belt

The unique temperature difference in Xinjiang,the high intensity of ultraviolet light,dust storms,droughts in summer,and cold weather conditions in winter have a major impact on the service life and recycling of polyethylene drip irrigation belts.Single-wing labyrinth drip belt companies add 80% to 100% drip-recycled material to the production formula in order to reduce costs.The components of the drip tape recycled material are complex and affect the product's molding and processing properties.The aging problem of drip tape products continues to affect the application of large-scale promotion and efficient water-saving irrigation technology.Therefore,the durability of agricultural plastic products has become a major concern.In this paper,the drip irrigation with polyethylene raw material screening based on the study of the formulation of drip tape optimization,to explore the drip irrigation tape recycled material aging determination method.The main research contents and results of this paper are as follows:(1)Through the characterization methods of mechanical properties and anti-aging properties,the different polyethylene raw materials were exposed in Turpan and artificial indoor accelerated aging tests were conducted.The raw materials LLDPE7042,LDPE2426,HDPE5000 S and HDPE6070 were selected as the best raw materials for the formulation.(2)To optimize the design of drip tape production formula,research and formulate the best formula for drip tape applicable to Xinjiang.Formula optimization is based on the screening of polyethylene raw materials.The aging retention rate of formula 4 at room temperature was 96% for 30 days,87.8% at 120 days for outdoor exposure,and the aging resistance was the best.Screening hindered phenolic antioxidants 1076 and 3114 as antioxidants was blocked.Amine Light Stabilizer 770 is a light stabilizer formulated with a drip tape.And with reference to Fang Xing Plastic Chemical Co.,Ltd.to provide embedded drip tape formulation data,and the research group's many years of research experience will be the best mix of HDPE(5000S)27%,HDPE(6070)10%,LDPE(2426H))20%,LLDPE(7042)41%,carbon black masterbatch 1%,anti-aging agent 0.5%.(3)Provides a simple structure,easy-to-operate,and inexpensive special-purpose stretcher for agricultural drip irrigation belt reclaimed materials,which can effectively solve the problem of the ability of enterprises to purchase mechanical equipment and the lack of professional technicians to make it impossible to judge the mechanical properties and aging of recycled pellets.The question of degree.A universal testing machine and a self-made drawing machine were used to test and compare the mechanical properties of the new material formulas and recycled materials,and the basic properties of the raw materials were analyzed.It was concluded that the tensile strength of the recycled materials for drip tapes should not be lower than 19 MPa,and the elongation at break should not be lower than 270.%,in order to basically ensure that the mechanical properties of recycled materials meet the requirements of drip irrigation belt product quality.