新型温室覆盖材料PETP膜的直角抗撕裂性能研究  

Study on the Right-angle Tear Resistance of New Type Covering Materials PETP Film for Greenhous

作　　者：刘海明[1] 张立芸[2] 施卫省[1] 

机构地区：[1]昆明理工大学,云南昆明650224 [2]云南农业大学,云南昆明650201

出　　处：《北方园艺》2010年第22期66-68,共3页Northern Horticulture

摘　　要：以3种薄膜为试材,研究其直角抗撕裂性能。结果表明:PETP、PVC、PE薄膜的直角抗撕裂性能中屈服强度都随着试验速度的增大而呈曲线上升;PETP薄膜横向和纵向的屈服点占峰值的百分比要比相同厚度PVC、PE薄膜小15%左右,但PETP薄膜横向和纵向屈服力要比相同厚度PVC、PE薄膜的大6 N以上,PETP薄膜的直角抗撕裂性能无论是从峰值还是屈服点来看都比PVC、PE薄膜要好的多。Taking 3 thin films as test material,the it＇s right angle tear resistance were studied.The results showed that the yield strength of PETP,PVC,PE films＇ right-angle tear resistances were increasing with the increasing test speed,until up and equal to the ultimate strength.Compared with PVC,PE films of the same thickness,PETP film＇s horizontal and vertical yield points＇ percentage of total peak was low 15%,but the force corresponds to yield point of PETP film was greater than others about 6 N at least.The results proved that,the right-angle tear resistance of PETP Film were better the PVC,PE films.

关 键 词：PETP薄膜 塑料薄膜 抗撕裂性能 

分 类 号：S625.3[农业科学—园艺学]