CN115506067A - 一种快速降解的塑料编织袋的制备方法 - Google Patents
一种快速降解的塑料编织袋的制备方法 Download PDFInfo
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Abstract
本发明提供一种快速降解的塑料编织袋的制备方法，涉及塑料编织袋制备技术领域。塑料编织袋具有以下组分：改性降解原料200‑240份、植物纤维素10‑13份、钛白粉3‑7份、相容剂3‑6份、抗氧剂5‑7份、润滑剂3‑5份、增韧剂11‑15份、增容剂4‑6份、扩链剂10‑13份、导电纤维6‑8份、竹炭纤维6‑8份，且所述导电纤维和竹炭纤维的重量份配比为1：1。本发明具备较好的相容性，塑料编织袋在使用过程中具备较好的强度，使用后的塑料编织袋能够快速降解。
Description
技术领域
本发明提供一种快速降解的塑料编织袋的制备方法，涉及塑料编织袋制备技术领域。
背景技术
塑料制品带来的白色污染问题一直是不容忽视的，同样，整个回收行业，加大了回收二手编织袋，而目前市场上新出现一种可降解塑料编织袋。可降解的塑料编织袋按照原料的来源方式可以分为三类：第一种是来源于化石资源的生物分解塑料、第二种是来源于可再生资源的生物分解材料、第三种是将前两者混合加工而成的材料。生物分解复合塑料编织袋在堆肥化条件或土埋条件下或者水条件下6个月内完全分解成二氧化碳、水等小分子，最终倍环境完全消纳。生态毒性实验说明，分解后不会对任何生物、植物造成影响。我国随着限塑令的实施，垃圾分类速度加快，对可以生物分解的购物袋、垃圾袋、复合塑料编织袋用量会迅速增加。它的市场前景会远远超过普通塑料编织袋。
目前，人们开发研究塑料编织产品的方向已经导向于以生物降解塑料为主，现有的生物降解塑料主要以聚酯类的有机物与天然可降解大分子聚合而成的可生物降解塑料为主，实际应用中，该类塑料制品除了需要具备生物降解性能的要求外，还需要具备较好强度，如韧性和抗冲性能等，强度好的可生物降解速度不便于快速降解，因此，现有的可生物降解的塑料编织产品尽管具备可降解的功能，但是其降解速度不够快，同样给塑料编织垃圾处理带来一定的压力。为此，我们提出一种快速降解的塑料编织袋的制备方法。
发明内容
为解决上述问题，本发明提供一种快速降解的塑料编织袋的制备方法。
本发明提供一种快速降解的塑料编织袋的制备方法，所述塑料编织袋具有以下组分：改性降解原料200-240份、植物纤维素10-13份、钛白粉3-7份、相容剂3-6份、抗氧剂5-7份、润滑剂3-5份、增韧剂11-15份、增容剂4-6份、扩链剂10-13份、导电纤维6-8份、竹炭纤维6-8份，且所述导电纤维和竹炭纤维的重量份配比为1：1，具体制备方法如下：
S1、依次于所述改性降解原料中加入植物纤维素、钛白粉、相容剂和抗氧剂，搅拌处理 1-2h，得到混合物，备用；
S2、取润滑剂、增韧剂、增容剂、扩链剂、导电纤维和竹炭纤维加入水中混匀，得到分散液，将所述分散液加入S1中得到混合物中，一并置于高速混合机，在110-120℃下搅拌15 至30min后冷却至室温得到塑料编织袋的扁丝原料；
S3、将S2得到的扁丝原料加入螺杆挤出机中，加热条件下，经过塑化、熔融、均化后，挤出薄膜；
S4、将薄膜冷却后经过刀具切丝，得到胚丝；
S5、将胚丝经过热辊加热牵引拉伸，再经过冷辊定型处理，得到扁丝；
S6、扁丝经过经纬编织制得塑料编织袋产品；
优选的，所述改性降解原料由PBAT、PHA和淀粉经共混改性制成，所述改性降解原料的重量份组成如下：PBAT 100-120份、PHA10-12份、淀粉30-40份。
优选的，所述导电纤维包括纤维套以及填充在纤维套内导电介质，所述限位套由天然植物纤维和聚合物热熔纤维制得，所述导电介质采用碳纤维纺制得到。
优选的，所述润滑剂采用EVA蜡或甘油，所述增韧剂采用聚丙烯酸酯、苯乙烯-丁二烯热塑性弹性体或乙烯-醋酸乙烯酯共聚物，所述扩链剂采用三羟甲基丙烷。
优选的，所述塑料编织袋具有以下组分：改性降解原料215份、植物纤维素12份、钛白粉6份、相容剂5份、抗氧剂6份、润滑剂4份、增韧剂13份、增容剂5份、扩链剂12份、导电纤维7份、竹炭纤维7份。
优选的，所述的螺杆挤出机为双螺杆挤出机，螺杆挤出依次设置6个温区，从进料到出料的温度依次为220～255℃、170～200℃、210～250℃、220～240℃、190～210℃、205～ 240℃，所述的胚丝经过热辊加热牵引拉伸时，热辊的温度为205～210℃，扁丝的牵引速度与牵引速度的比值为0.95，所述的冷辊定型时，冷辊的温度为45～55℃。
优选的，S5中的扁丝的宽度为3-5mm，厚度为0.05mm。
本发明的有益效果：
本发明提供一种快速降解的塑料编织袋的制备方法，采用PBAT+PHA+淀粉的复配模式作为降解塑料编织袋的基础料，基于三者共混改性以克服采用单一PBAT进行制作所存在的洁净度差和熔体强度低的问题，此外，采用来源广成本低的淀粉进行共混，促进塑料编织袋的降解进程并降低基础料成本，推广前景优异。掺入1:1混配的导电纤维和竹炭纤维来改善塑料熔体的化学性能，使得基于该熔体制作得到的塑料编织袋具备防静电和抗菌的效果，应用前景优异。
具体实施方式
下面对本发明的优选实施例进行详细的描述。
本发明提供一种快速降解的塑料编织袋的制备方法，所述塑料编织袋具有以下组分：改性降解原料200-240份、植物纤维素10-13份、钛白粉3-7份、相容剂3-6份、抗氧剂5-7份、润滑剂3-5份、增韧剂11-15份、增容剂4-6份、扩链剂10-13份、导电纤维6-8份、竹炭纤维6-8份，且所述导电纤维和竹炭纤维的重量份配比为1：1，具体制备方法如下：
S1、依次于所述改性降解原料中加入植物纤维素、钛白粉、相容剂和抗氧剂，搅拌处理1-2h，得到混合物，备用；
S2、取润滑剂、增韧剂、增容剂、扩链剂、导电纤维和竹炭纤维加入水中混匀，得到分散液，将所述分散液加入S1中得到混合物中，一并置于高速混合机，在110-120℃下搅拌15 至30min后冷却至室温得到塑料编织袋的扁丝原料；
S3、将S2得到的扁丝原料加入螺杆挤出机中，加热条件下，经过塑化、熔融、均化后，挤出薄膜；
S4、将薄膜冷却后经过刀具切丝，得到胚丝；
S5、将胚丝经过热辊加热牵引拉伸，再经过冷辊定型处理，得到扁丝；
S6、扁丝经过经纬编织制得塑料编织袋产品；
本发明中所述改性降解原料由PBAT、PHA和淀粉经共混改性制成，所述改性降解原料的重量份组成如下：PBAT 100-120份、PHA10-12份、淀粉30-40份。采用PBAT+PHA+淀粉的复配模式作为降解塑料的基础料，基于三者共混改性以克服采用单一PBAT进行制作所存在的洁净度差和熔体强度低的问题，此外，采用来源广成本低的淀粉进行共混，促进塑料的降解进程并降低基础料成本，推广前景优异。
本发明中所述导电纤维包括纤维套以及填充在纤维套内导电介质，所述限位套由天然植物纤维和聚合物热熔纤维制得，所述导电介质采用碳纤维纺制得到，掺入1:1混配的导电纤维和竹炭纤维来改善塑料熔体的化学性能，使得基于该熔体制作得到的塑料具备防静电和抗菌的效果，应用前景优异。
本发明中所述润滑剂采用EVA 蜡或甘油，所述增韧剂采用聚丙烯酸酯、苯乙烯-丁二烯热塑性弹性体或乙烯-醋酸乙烯酯共聚物，所述扩链剂采用三羟甲基丙烷。
本发明中所述塑料编织袋具有以下组分：改性降解原料215份、植物纤维素12份、钛白粉6份、相容剂5份、抗氧剂6份、润滑剂4份、增韧剂13份、增容剂5份、扩链剂12份、导电纤维7份、竹炭纤维7份。
本发明中所述的螺杆挤出机为双螺杆挤出机，螺杆挤出依次设置6个温区，从进料到出料的温度依次为220～255℃、170～200℃、210～250℃、220～240℃、190～210℃、205～ 240℃，所述的胚丝经过热辊加热牵引拉伸时，热辊的温度为205～210℃，扁丝的牵引速度与牵引速度的比值为0.95，所述的冷辊定型时，冷辊的温度为45～55℃。
本发明中S5中的扁丝的宽度为3-5mm，厚度为0.05mm。
以上对本发明及其实施方式进行了描述，这种描述没有限制性。总而言之如果本领域的普通技术人员受其启示，在不脱离本发明创造宗旨的情况下，不经创造性的设计出与该技术方案相似的结构方式及实施例，均应属于本发明的保护范围。
Claims (7)
1.一种快速降解的塑料编织袋的制备方法，其特征在于：所述塑料编织袋具有以下组分：改性降解原料200-240份、植物纤维素10-13份、钛白粉3-7份、相容剂3-6份、抗氧剂5-7份、润滑剂3-5份、增韧剂11-15份、增容剂4-6份、扩链剂10-13份、导电纤维6-8份、竹炭纤维6-8份，且所述导电纤维和竹炭纤维的重量份配比为1：1，具体制备方法如下：
S1、依次于所述改性降解原料中加入植物纤维素、钛白粉、相容剂和抗氧剂，搅拌处理1-2h，得到混合物，备用；
S2、取润滑剂、增韧剂、增容剂、扩链剂、导电纤维和竹炭纤维加入水中混匀，得到分散液，将所述分散液加入S1中得到混合物中，一并置于高速混合机，在110-120℃下搅拌15至30min后冷却至室温得到塑料编织袋的扁丝原料；
S3、将S2得到的扁丝原料加入螺杆挤出机中，加热条件下，经过塑化、熔融、均化后，挤出薄膜；
S4、将薄膜冷却后经过刀具切丝，得到胚丝；
S5、将胚丝经过热辊加热牵引拉伸，再经过冷辊定型处理，得到扁丝；
S6、扁丝经过经纬编织制得塑料编织袋产品；
2.根据权利要求1所述的一种快速降解的塑料编织袋的制备方法，其特征在于：所述改性降解原料由PBAT、PHA和淀粉经共混改性制成，所述改性降解原料的重量份组成如下：PBAT 100-120份、PHA10-12份、淀粉30-40份。
3.根据权利要求1所述的一种快速降解的塑料编织袋的制备方法，其特征在于：所述导电纤维包括纤维套以及填充在纤维套内导电介质，所述限位套由天然植物纤维和聚合物热熔纤维制得，所述导电介质采用碳纤维纺制得到。
4.根据权利要求1所述的一种快速降解的塑料编织袋的制备方法，其特征在于：所述润滑剂采用EVA蜡或甘油，所述增韧剂采用聚丙烯酸酯、苯乙烯-丁二烯热塑性弹性体或乙烯-醋酸乙烯酯共聚物，所述扩链剂采用三羟甲基丙烷。
5.根据权利要求1所述的一种快速降解的塑料编织袋的制备方法，其特征在于：所述塑料编织袋具有以下组分：改性降解原料215份、植物纤维素12份、钛白粉6份、相容剂5份、抗氧剂6份、润滑剂4份、增韧剂13份、增容剂5份、扩链剂12份、导电纤维7份、竹炭纤维7份。
6.根据权利要求1所述的一种快速降解的塑料编织袋的制备方法，其特征在于：所述的螺杆挤出机为双螺杆挤出机，螺杆挤出依次设置6个温区，从进料到出料的温度依次为220～255℃、170～200℃、210～250℃、220～240℃、190～210℃、205～240℃，所述的胚丝经过热辊加热牵引拉伸时，热辊的温度为205～210℃，扁丝的牵引速度与牵引速度的比值为0.95，所述的冷辊定型时，冷辊的温度为45～55℃。
7.根据权利要求1所述的一种快速降解的塑料编织袋的制备方法，其特征在于：S5中的扁丝的宽度为3-5mm，厚度为0.05mm。
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| CN115074854A (zh) * | 2022-06-30 | 2022-09-20 | 界首市宏利塑料股份有限公司 | 一种环保编织袋及其制备方法 |
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