CN110511442A - 一种可降解环保塑料薄膜配方及其生产工艺 - Google Patents
一种可降解环保塑料薄膜配方及其生产工艺 Download PDFInfo
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- UGTZMIPZNRIWHX-UHFFFAOYSA-K sodium trimetaphosphate Chemical compound [Na+].[Na+].[Na+].[O-]P1(=O)OP([O-])(=O)OP([O-])(=O)O1 UGTZMIPZNRIWHX-UHFFFAOYSA-K 0.000 claims description 2
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 2
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 4
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Classifications
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- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
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Abstract
本发明公开了一种可降解环保塑料薄膜配方,由以下按重量份的原料组成:热塑性淀粉45‑55份,相容改性成分6‑7份,聚乳酸15‑20份,硬脂酸钙10‑20份,塑料基料25‑35份,聚己酸内酯15‑20份,抗菌剂7‑12份,降解促进剂3‑7份,填充剂3‑5份,交联剂4‑8份,植物纤维26‑32份,助剂1‑3份。本发明的优点:本发明的材料配方中的原料,淀粉含量最高,在土壤微生物的作用下,可完全分解成水、二氧化碳及有机物,无污染,可广泛应用于农用地膜、包装袋等,容易降解,同时具有良好的力学性能,而且制品的成本大为降低;另外,在生产、储存、使用和降解过程中不产生有毒物质,能较快地被降解掉,有利于环境的保护。
Description
技术领域
本发明涉及塑料薄膜生产技术领域,具体是指一种可降解环保塑料薄膜配方及其生产工艺。
背景技术
塑料薄膜是用聚氯乙烯、聚乙烯、聚丙烯、聚苯乙烯以及其他树脂制成的薄膜。塑料薄膜的表面张力取决于塑料薄膜表面自由能大小,而薄膜表面能又取决于薄膜材料本身的分子结构。塑料薄膜可用于食品包装、电器产品包装、日用品包装、服装包装等。
现有的塑料薄膜由于其优异的物理性质,低廉的制造成本,被运用于生活中的方方面面,然而现有的塑料薄膜通常是透明或黑色PE薄膜,也有绿、银色薄膜,用于信息通讯器材及线缆的包装、覆盖,以提高设备运输的稳定性和安全性,避免器材或线缆受损,但是,现有塑料薄膜降解效果较差,容易造成土壤污染。
发明内容
本发明为了解决上述的各种问题,提供了一种可降解环保塑料薄膜配方及其生产工艺,具有生物降解性和优异的力学性能等优点。
为解决上述技术问题,本发明提供的技术方案为:一种可降解环保塑料薄膜配方,由以下按重量份的原料组成:
热塑性淀粉45-55份,相容改性成分6-7份,聚乳酸15-20份,硬脂酸钙10-20份,塑料基料25-35份,聚己酸内酯15-20份,抗菌剂7-12份,降解促进剂3-7份,填充剂3-5份,交联剂4-8份,植物纤维26-32份,助剂1-3份。
优选的,所述的热塑性淀粉为粒径为玉米淀粉、小麦淀粉、土豆淀粉中的一种或多种;所述的相容改性成分为十八烯酸、十二烯基丁二酸酐按照1:2组成的混合物。
优选的,所述的塑料基料为聚乙烯、聚丙烯、聚氯乙烯和聚苯乙烯中的一种或多种。
优选的,所述的抗菌剂为受阻酚类交联剂和亚磷酸酯类交联剂按照1:1组成的混合物;所述的降解促进剂为玉米油、葵花籽油、环氧大豆油或硬脂酸锰中的一种或多种。
优选的,所述的填充剂为硬脂酸、液体石蜡、聚乙烯蜡中的至少一种;交联剂为双叔丁基过氧异丙基苯、六偏磷酸钠、三偏磷酸钠或三聚磷酸钠中的一种或两种任意组合。
优选的,所述的植物纤维为稻子秸秆、小麦秸秆、玉米秸秆或它们的混合物;所述的助剂为碳酸钙、硬脂酸镉和纳米二氧化钛按照1:1:1组成的混合物。
本发明还包括一种可降解环保塑料薄膜的生产工艺,包括以下步骤:
步骤一,按重量份数计算,将称取的热塑性淀粉、相容改性成分、塑料基料、聚乳酸、硬脂酸钙和聚己酸内酯按比例同时投入混合机中,在室温条件下搅拌混合均匀;
步骤二,按所述重量取植物纤维粉碎,并将抗菌剂、降解促进剂、填充剂、交联剂和助剂与步骤一制备的混合料均匀加入进行搅拌得混合物;
步骤三,将上述步骤二中得到的混合料混合均匀后,并进行加热熔融;
步骤四,将上述步骤三中得到的加热熔融后的混合熔融液经挤出机挤出后通过吹膜机制成塑料薄膜,将混合物吹制成生物降解性塑料薄膜;
步骤五,将上述步骤四中得到的生物降解性塑料薄膜用分切机切割成不同规格大小,生物降解性塑料薄膜收卷封装入库。
优选的,所述步骤四中吹膜机的型号为SJ-45-FM1000。
本发明与现有技术相比的优点在于:本发明的材料配方中的原料,淀粉含量最高,在土壤微生物的作用下,可完全分解成水、二氧化碳及有机物,无污染,可广泛应用于农用地膜、包装袋等,容易降解,同时具有良好的力学性能,而且制品的成本大为降低;另外,在生产、储存、使用和降解过程中不产生有毒物质,能较快地被降解掉,有利于环境的保护。
具体实施方式
下面将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
一种可降解环保塑料薄膜配方,由以下按重量份的原料组成:
热塑性淀粉45份,相容改性成分6份,聚乳酸15份,硬脂酸钙10份,塑料基料25份,聚己酸内酯15份,抗菌剂7份,降解促进剂3份,填充剂3份,交联剂4份,植物纤维26份,助剂1份。
本发明还包括一种可降解环保塑料薄膜的生产工艺,包括以下步骤:
步骤一,按重量份数计算,将称取的热塑性淀粉、相容改性成分、塑料基料、聚乳酸、硬脂酸钙和聚己酸内酯按比例同时投入混合机中,在室温条件下搅拌混合均匀;
步骤二,按所述重量取植物纤维粉碎,并将抗菌剂、降解促进剂、填充剂、交联剂和助剂与步骤一制备的混合料均匀加入进行搅拌得混合物;
步骤三,将上述步骤二中得到的混合料混合均匀后,并进行加热熔融;
步骤四,将上述步骤三中得到的加热熔融后的混合熔融液经挤出机挤出后通过吹膜机制成塑料薄膜,将混合物吹制成生物降解性塑料薄膜;
步骤五,将上述步骤四中得到的生物降解性塑料薄膜用分切机切割成不同规格大小,生物降解性塑料薄膜收卷封装入库。
实施例2
一种可降解环保塑料薄膜配方,由以下按重量份的原料组成:
热塑性淀粉55份,相容改性成分7份,聚乳酸20份,硬脂酸钙20份,塑料基料35份,聚己酸内酯20份,抗菌剂12份,降解促进剂7份,填充剂5份,交联剂8份,植物纤维32份,助剂3份。
本发明还包括一种可降解环保塑料薄膜的生产工艺,包括以下步骤:
步骤一,按重量份数计算,将称取的热塑性淀粉、相容改性成分、塑料基料、聚乳酸、硬脂酸钙和聚己酸内酯按比例同时投入混合机中,在室温条件下搅拌混合均匀;
步骤二,按所述重量取植物纤维粉碎,并将抗菌剂、降解促进剂、填充剂、交联剂和助剂与步骤一制备的混合料均匀加入进行搅拌得混合物;
步骤三,将上述步骤二中得到的混合料混合均匀后,并进行加热熔融;
步骤四,将上述步骤三中得到的加热熔融后的混合熔融液经挤出机挤出后通过吹膜机制成塑料薄膜,将混合物吹制成生物降解性塑料薄膜;
步骤五,将上述步骤四中得到的生物降解性塑料薄膜用分切机切割成不同规格大小,生物降解性塑料薄膜收卷封装入库。
实施例3
一种可降解环保塑料薄膜配方,由以下按重量份的原料组成:
热塑性淀粉50份,相容改性成分6份,聚乳酸18份,硬脂酸钙15份,塑料基料30份,聚己酸内酯18份,抗菌剂10份,降解促进剂5份,填充剂4份,交联剂6份,植物纤维29份,助剂2份。
本发明还包括一种可降解环保塑料薄膜的生产工艺,包括以下步骤:
步骤一,按重量份数计算,将称取的热塑性淀粉、相容改性成分、塑料基料、聚乳酸、硬脂酸钙和聚己酸内酯按比例同时投入混合机中,在室温条件下搅拌混合均匀;
步骤二,按所述重量取植物纤维粉碎,并将抗菌剂、降解促进剂、填充剂、交联剂和助剂与步骤一制备的混合料均匀加入进行搅拌得混合物;
步骤三,将上述步骤二中得到的混合料混合均匀后,并进行加热熔融;
步骤四,将上述步骤三中得到的加热熔融后的混合熔融液经挤出机挤出后通过吹膜机制成塑料薄膜,将混合物吹制成生物降解性塑料薄膜;
步骤五,将上述步骤四中得到的生物降解性塑料薄膜用分切机切割成不同规格大小,生物降解性塑料薄膜收卷封装入库。
以上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 (8)
1.一种可降解环保塑料薄膜配方,其特征在于:由以下按重量份的原料组成:
热塑性淀粉45-55份,相容改性成分6-7份,聚乳酸15-20份,硬脂酸钙10-20份,塑料基料25-35份,聚己酸内酯15-20份,抗菌剂7-12份,降解促进剂3-7份,填充剂3-5份,交联剂4-8份,植物纤维26-32份,助剂1-3份。
2.根据权利要求1所述的一种可降解环保塑料薄膜配方,其特征在于:所述的热塑性淀粉为粒径为玉米淀粉、小麦淀粉、土豆淀粉中的一种或多种;所述的相容改性成分为十八烯酸、十二烯基丁二酸酐按照1:2组成的混合物。
3.根据权利要求1所述的一种可降解环保塑料薄膜配方,其特征在于:所述的塑料基料为聚乙烯、聚丙烯、聚氯乙烯和聚苯乙烯中的一种或多种。
4.根据权利要求1所述的一种可降解环保塑料薄膜配方,其特征在于:所述的抗菌剂为受阻酚类交联剂和亚磷酸酯类交联剂按照1:1组成的混合物;所述的降解促进剂为玉米油、葵花籽油、环氧大豆油或硬脂酸锰中的一种或多种。
5.根据权利要求1所述的一种可降解环保塑料薄膜配方,其特征在于:所述的填充剂为硬脂酸、液体石蜡、聚乙烯蜡中的至少一种;交联剂为双叔丁基过氧异丙基苯、六偏磷酸钠、三偏磷酸钠或三聚磷酸钠中的一种或两种任意组合。
6.根据权利要求1所述的一种可降解环保塑料薄膜配方,其特征在于:所述的植物纤维为稻子秸秆、小麦秸秆、玉米秸秆或它们的混合物;所述的助剂为碳酸钙、硬脂酸镉和纳米二氧化钛按照1:1:1组成的混合物。
7.一种可降解环保塑料薄膜的生产工艺,其特征在于:包括以下步骤:
步骤一,按重量份数计算,将称取的热塑性淀粉、相容改性成分、塑料基料、聚乳酸、硬脂酸钙和聚己酸内酯按比例同时投入混合机中,在室温条件下搅拌混合均匀;
步骤二,按所述重量取植物纤维粉碎,并将抗菌剂、降解促进剂、填充剂、交联剂和助剂与步骤一制备的混合料均匀加入进行搅拌得混合物;
步骤三,将上述步骤二中得到的混合料混合均匀后,并进行加热熔融;
步骤四,将上述步骤三中得到的加热熔融后的混合熔融液经挤出机挤出后通过吹膜机制成塑料薄膜,将混合物吹制成生物降解性塑料薄膜;
步骤五,将上述步骤四中得到的生物降解性塑料薄膜用分切机切割成不同规格大小,生物降解性塑料薄膜收卷封装入库。
8.根据权利要求7所述的一种可降解环保塑料薄膜的生产工艺,其特征在于:所述的步骤四中吹膜机的型号为SJ-45-FM1000。
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