CN108276714A - 一种生物降解塑料地膜 - Google Patents

一种生物降解塑料地膜 Download PDF

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CN108276714A
CN108276714A CN201711408945.7A CN201711408945A CN108276714A CN 108276714 A CN108276714 A CN 108276714A CN 201711408945 A CN201711408945 A CN 201711408945A CN 108276714 A CN108276714 A CN 108276714A
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biodegradable plastic
parts
plastic mulch
biodegradable
raw material
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董如兵
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Hefei Good Teng Plastics Technology Co Ltd
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Hefei Good Teng Plastics Technology Co Ltd
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    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protecting plants
    • A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • A01G13/0256—Ground coverings
    • A01G13/0268—Mats or sheets, e.g. nets or fabrics
    • A01G13/0275—Films
    • C—CHEMISTRY; METALLURGY
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    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
    • C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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    • C08J2429/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
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Abstract

本发明公开了一种生物降解塑料地膜。所述生物降解塑料地膜由线性低密度聚乙烯40‑70份、聚乙烯醇50‑60份、聚乳酸50‑60份、纳米碳酸钙颗粒15‑30份、润滑剂10‑20份、增塑剂5‑10份充分混合均匀，挤出造粒，吹塑成型。本发明制备的塑料地膜中不仅具有较好的保湿、保温功能，还可以生物降解，强度高，不会造成环境污染。本发明提供的方法生产工艺简单，适合大规模工业生产。

Description

一种生物降解塑料地膜
技术领域
本发明涉及塑料领域，具体涉及一种生物降解塑料地膜。
背景技术
塑料地膜的使用有利于农作物的生长发育和提高农作物的产量和经济效益，但大规模使用无法降解的塑料地膜也造成了大量的“白色污染”，且还会导致土壤板结、透气性差、地力下降等问题，进而会影响农作物的生长发育和产量。
解决非降解塑料地膜引起的“白色污染”和土壤板结等问题的有效措施之一是开发使用可降解塑料地膜。目前，可降解地膜大多使用生物降解地膜，其由淀粉、改性淀粉、纤维等生物可降解成分组成。由于，淀粉来源于农作物，大量使用会与人类有一定竞争，不利于长期使用和发展。且此类薄膜强度小，很难达到应用的要求，同时还不易加工成型。因此，制备易加工低成本可降解塑料地膜十分重要。
发明内容
(一)解决的技术问题
针对现有技术的不足，本发明提供了一种一种生物降解塑料地膜，解决了目前大多数塑料地膜不能降解和生物降解塑料地膜强度不高的问题，本发明提供的方法制备的塑料地膜可生物降解无污染，强度高，易加工，环境友好。
(二)技术方案
为实现上述目的，本发明提供如下技术方案：一种生物降解塑料地膜。
所述一种生物降解塑料地膜的原料按重量份计包括：
优选的，一种生物降解塑料地膜由如下步骤制备：
(1)将原料按比例充分混合均匀；
(2)双螺杆挤出机挤出造粒；
(3)再经吹塑机吹塑成型。
优选的，所述润滑剂为脂肪酸酯类、醇类、石蜡、硅油的一种或几种的混合物。
优选的，所述增塑剂为邻苯二甲酸酯、脂肪二羧酸酯、聚酯的一种或几种的混合物。
(三)有益效果
本发明提供了一种生物降解塑料地膜，具备以下有益效果：
(1)本发明工艺配方中使用低密度聚乙烯与聚乳酸、聚乙烯醇共混，纳米碳酸钙颗粒填充改性，制备的塑料地膜的强度高，且易加工成型。
(2)本发明工艺配方中使用聚乙烯醇和聚乳酸等可生物降解的聚合物，使塑料地膜具有可生物降解的性质。
(3)使本发明制得的塑料地膜可生物降解，不会造成“白色污染”，有利于生态可持续发展。
具体实施方式
下面将结合本发明的实施例，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
一种生物降解塑料地膜，原料按重量份计包括：
将原料按上述比例于高剪切搅拌器中充分混合均匀，混合均匀的物料经双螺杆挤出机挤出造粒，再经吹塑机吹塑成型。
实施例2
一种生物降解塑料地膜，原料按重量份计包括：
将原料按上述比例于高剪切搅拌器中充分混合均匀，混合均匀的物料经双螺杆挤出机挤出造粒，再经吹塑机吹塑成型。
实施例3
一种生物降解塑料地膜，原料按重量份计包括：
将原料按上述比例于高剪切搅拌器中充分混合均匀，混合均匀的物料经双螺杆挤出机挤出造粒，再经吹塑机吹塑成型。
实施例4
一种生物降解塑料地膜，原料按重量份计包括：
将原料按上述比例于高剪切搅拌器中充分混合均匀，混合均匀的物料经双螺杆挤出机挤出造粒，再经吹塑机吹塑成型。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (4)

1.一种生物降解塑料地膜，其特征在于，所述一种生物降解塑料地膜的原料按重量份计包括：
。
2.根据权利要求1所述的一种生物降解塑料地膜，其特征在于，由如下步骤制备：
(1)将原料按比例充分混合均匀；
(2)双螺杆挤出机挤出造粒；
(3)再经吹塑机吹塑成型。
3.根据权利要求1或2所述的一种生物降解塑料地膜，其特征在于，所述润滑剂为脂肪酸酯类、醇类、石蜡、硅油的一种或几种的混合物。
4.根据权利要求1或2所述的一种生物降解塑料地膜，其特征在于，所述增塑剂为邻苯二甲酸酯、脂肪二羧酸酯、聚酯的一种或几种的混合物。
CN201711408945.7A 2017-12-22 2017-12-22 一种生物降解塑料地膜 Pending CN108276714A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109233051A (zh) * 2018-08-20 2019-01-18 蚌埠市维光塑胶制品有限公司 一种可用于雪青梨保鲜用的聚乙烯塑料包装膜
CN111909496A (zh) * 2020-08-03 2020-11-10 日彩复合塑料(深圳)有限公司 可生物降解的塑料及其生产工艺和应用
CN114410088A (zh) * 2022-01-21 2022-04-29 杭州泽同新材料科技有限公司 适用于长周期生长植物的生物降解地膜

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109233051A (zh) * 2018-08-20 2019-01-18 蚌埠市维光塑胶制品有限公司 一种可用于雪青梨保鲜用的聚乙烯塑料包装膜
CN111909496A (zh) * 2020-08-03 2020-11-10 日彩复合塑料(深圳)有限公司 可生物降解的塑料及其生产工艺和应用
CN111909496B (zh) * 2020-08-03 2022-09-13 日彩复合塑料(深圳)有限公司 可生物降解的塑料及其生产工艺和应用
CN114410088A (zh) * 2022-01-21 2022-04-29 杭州泽同新材料科技有限公司 适用于长周期生长植物的生物降解地膜

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