Anti-burn double-layer co-extrusion built-in drip irrigation tape and preparation method thereof

The invention discloses an anti-burn double-layer co-extrusion built-in drip irrigation tape. The drip irrigation tape comprises an inner layer and an outer layer, wherein the inner layer is prepared from, by mass, 40-60% of high-density polyethylene, 10-30% of low-density polyethylene, 10-30% of linear low-density polyethylene, 1-2% of multifunctional master batch and 3-8% of silver master batch; the outer layer is prepared from, by mass, 60-80% of high-density polyethylene, 1-2% of AC foaming system, 1-2% of DCP cross-linking system, 15-30% of linear low-density polyethylene and 3-8% of silver master batch; concentration master batch is prepared from the AC foaming system and the DCP cross-linking system; the anti-burn capability of the drip irrigation tape is improved, and the service life of the drip irrigation tape is prolonged. 本发明公开了种抗灼伤双层共挤内镶式滴灌带，滴灌带包括内层和外层，所述内层是由包括以下质量分数的各组分制备得到的：高密度聚乙烯40%~60%，低密度聚乙烯10%~30%，线性低密度聚乙烯10%~30%，多功能母料1%~2%，银色母3%~8%；所述外层是由包括以下质量分数的各组分制备得到的：高密度聚乙烯60%~80%，AC发泡体系1%~2%，DCP交联体系1