首页>
外国专利>
AGRICULTURAL BARRIER FILMS HAVING SUPERIOR TEAR STRENGTH PROPERTIES.
AGRICULTURAL BARRIER FILMS HAVING SUPERIOR TEAR STRENGTH PROPERTIES.
展开▼
机译:具有优异的抗撕强度特性的农业阻隔膜。
展开▼
页面导航
摘要
著录项
相似文献
摘要
A mulch barrier film having, for example, a methyl bromide permeability of less than about 15 g/msup2/sup-hr and machine direction Elmendorf tear strength of at least about 75 gf. The mulch barrier film is an extruded, cast, and preferably embossed, multilayer film having at least one polyolefin layer and at least one polyamide layer. The combination of the film structure and the casting process achieves a barrier film that has low permeability to volatile soil treatment chemicals, such as methyl bromide, and superior tear strength properties.
展开▼
机译:一种覆盖膜,该覆盖膜具有例如小于约15g / m 2 s-hr的甲基溴渗透率和至少约75gf的纵向埃尔曼多夫撕裂强度。覆盖屏障膜是具有至少一个聚烯烃层和至少一个聚酰胺层的挤出的,流延的并且优选为压花的多层膜。膜结构和流延工艺的结合,可得到一种阻隔膜,该膜对挥发性的土壤处理化学品(如甲基溴)的渗透性低,并且具有出色的撕裂强度特性。
展开▼