一种可降解地膜的制作方法

Method of prepn. of degradable soil film

Abstract

A degradable ground film for preserving soil moisture, thermal insulating and promoting growth of crops is made up of one or more of straw, stalk, leaf and tree bark through mixing, drying until its water content is lower than 50%, crushing, sieving by 50-325 meshes, mixing it with 66-99% polyvinyl alcohol (5-20 Wt. portions), sodium silicate (5-20) and water (20-40), stirring, and spraying it onthe ground.
本发明涉及一种可降解地膜的制作方法,其是将植物的秸秆、叶片、树皮中的一种或几种混合物干燥至含水量5%以下后,粉碎至50—325目筛通过的细度,取100份(重量比)置于混拌釜中,加入醇解度为66—99%的聚乙烯醇5—20份(重量比),模数为2.2—3.7的硅酸钠5—20份(重量比),水20—40份(重量比),用搅拌器搅拌至充分混溶即成,将本发明注入喷涂机,按所需厚度、宽度、长度均匀喷涂于土地表面,形成一层紧贴于地表的膜,具有保温保水、促进作物生长的能力。

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Cited By (6)

    Publication numberPublication dateAssigneeTitle
    CN-100496931-CJune 10, 2009兰州瑞德干燥技术有限公司聚乙烯醇两级干燥工艺
    CN-102126892-AJuly 20, 2011扬州大学Coating slurry for slow release fertilizer and production method thereof
    CN-102126892-BOctober 09, 2013扬州大学缓释肥料包膜浆及其生产方法
    CN-102283057-ADecember 21, 2011福建中烟工业公司一种新型的稠浆法多功能有机环保薄片地膜的制作方法
    CN-102283057-BJune 19, 2013福建中烟工业有限责任公司Method for manufacturing slurry-processed multifunction organic environmental-protection flaky mulching film
    CN-103819923-AMay 28, 2014罗世伟, 深圳市旱宝科技有限公司, 深圳市三联粘合胶有限公司腐植酸硅酸生物可降解农用地膜