CN112409644A - 一种耐高温pbat/pla全生物降解材料 - Google Patents
一种耐高温pbat/pla全生物降解材料 Download PDFInfo
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- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/02—Starch; Degradation products thereof, e.g. dextrin
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- C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2303/02—Starch; Degradation products thereof, e.g. dextrin
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- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
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Abstract
本发明公开了一种耐高温PBAT/PLA全生物降解材料,由下列重量配比的原料制备制成:淀粉40%‑50%、PBAT(聚己二酸/对苯二甲酸丁二脂)10%‑15%、PLA(聚乳酸)10%‑15%、增塑剂5%‑18%、偶联剂1%‑5%、抗氧化剂3%‑5%、扩链剂5%‑10%、交联剂3%‑5%。其制备简单,能达到降低成本、保持挺度、韧性、又同时提高了维卡变形温度到100度。
Description
技术领域
本发明涉及降解材料领域,尤其涉及一种耐高温PBAT/PLA全生物降解材料。
背景技术
过去的可降解产品多数用淀粉加PVA(聚乙烯醇),此材料比较亲水,遇水即溶,过分柔软,挺度不够,不适合制造餐具或盛水容器。以前的餐具等防水一次性用品基本用普通塑料,如PP、HDPE、PET等。这些是防水材料,但却是不可降解的,没有环境友好性,对环境形成“白色污染”。
如果用纯PBAT(聚己二酸/对苯二甲酸丁二脂)\纯PLA(聚乳酸)生产产品,可以获得防水、挺度高、有韧性等性能,但凸显的特点是:1、成本高(每吨约2.8万元);2、维卡变形温度低(50度-60度)。
发明内容
针对现有技术中的上述不足,本发明提供了一种耐高温PBAT/PLA全生物降解材料,其制备简单,能达到降低成本、保持挺度、韧性、又同时提高了维卡变形温度到100度。
为了达到上述发明目的,本发明采用的具体方案为:
一种耐高温PBAT/PLA全生物降解材料,由下列重量配比的原料制备制成:淀粉40%-50%、PBAT(聚己二酸/对苯二甲酸丁二脂)10%-15%、PLA(聚乳酸)10%-15%、增塑剂5%-18%、偶联剂1%-5%、抗氧化剂3%-5%、扩链剂5%-10%、交联剂3%-5%。
进一步,该材料的制备方法:先将淀粉及偶联剂置于高速混合机中,常温,速度60转每分钟,低速搅拌,时间15-30分钟,使淀粉表面活化,然后加入其他材料,把温度调到90度-100度,高速搅拌15-30分钟,然后置于双螺杆塑料挤出机中挤出造粒,造粒温度190度-200度。
本发明的有益效果为:
防水、挺度高、韧性好、成本低于纯PBAT(聚己二酸/对苯二甲酸丁二脂)/纯PLA(聚乳酸),本产品由于运用了分子交联技术和分子结晶技术,维卡变形温度可达100度,适用于注塑成型,成型温度:190度-200度,降解时间可控制在3-18个月,PBAT(聚己二酸/对苯二甲酸丁二脂)为全降解材料/PLA(聚乳酸)为玉米淀粉提取物,主要材料可降解物为二氧化碳和水,不会造成环境污染;其他助剂全部可以变成自然界天然的无机物。
具体实施方式
以下通过具体实施例进一步描述本发明,但本发明不仅仅限于以下实施例。在本发明的范围内或者在不脱离本发明的内容、精神和范围内,对本发明进行的变更、组合或替换,对于本领域的技术人员来说是显而易见的,且包含在本发明的范围之内。
一种耐高温PBAT/PLA全生物降解材料,由下列重量配比的原料制备制成:淀粉40%-50%、PBAT(聚己二酸/对苯二甲酸丁二脂)10%-15%、PLA(聚乳酸)10%-15%、增塑剂5%-18%、偶联剂1%-5%、抗氧化剂3%-5%、扩链剂5%-10%、交联剂3%-5%。
该材料的制备方法:先将淀粉及偶联剂置于高速混合机中,常温,速度60转每分钟,低速搅拌,时间15-30分钟,使淀粉表面活化,然后加入其他材料,把温度调到90度-100度,高速搅拌15-30分钟,然后置于双螺杆塑料挤出机中挤出造粒,造粒温度190度-200度。
以上所述仅为本发明专利的较佳实施例而已,并不用以限制本发明专利,凡在本发明专利的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明专利的保护范围之内。
Claims (2)
1.一种耐高温PBAT/PLA全生物降解材料,其特征在于,由下列重量配比的原料制备制成:淀粉40%-50%、PBAT(聚己二酸/对苯二甲酸丁二脂)10%-15%、PLA(聚乳酸)10%-15%、增塑剂5%-18%、偶联剂1%-5%、抗氧化剂3%-5%、扩链剂5%-10%、交联剂3%-5%。
2.根据权利要求1所述的一种耐高温PBAT/PLA全生物降解材料,其特征在于,该材料的制备方法:先将淀粉及偶联剂置于高速混合机中,常温,速度60转每分钟,低速搅拌,时间15-30分钟,使淀粉表面活化,然后加入其他材料,把温度调到90度-100度,高速搅拌15-30分钟,然后置于双螺杆塑料挤出机中挤出造粒,造粒温度190度-200度。
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CN115011079A (zh) * | 2022-05-31 | 2022-09-06 | 东莞市惠国新材科技有限公司 | 一种聚合物材料及其制备方法和应用 |
Citations (4)
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US20130253102A1 (en) * | 2012-03-26 | 2013-09-26 | Sung-Yuan LIU | Biodegradable plastic material |
CN103627153A (zh) * | 2012-08-20 | 2014-03-12 | 上海杰事杰新材料(集团)股份有限公司 | 一种全生物降解pla/pbat复合材料及其制备方法 |
CN105038163A (zh) * | 2015-08-19 | 2015-11-11 | 广东益德环保科技有限公司 | 一种全生物降解材料及其制备方法和应用 |
CN106366587A (zh) * | 2016-08-26 | 2017-02-01 | 江苏允友成生物环保材料有限公司 | 一种生物可降解聚乳酸/淀粉复合材料的制备方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US20130253102A1 (en) * | 2012-03-26 | 2013-09-26 | Sung-Yuan LIU | Biodegradable plastic material |
CN103627153A (zh) * | 2012-08-20 | 2014-03-12 | 上海杰事杰新材料(集团)股份有限公司 | 一种全生物降解pla/pbat复合材料及其制备方法 |
CN105038163A (zh) * | 2015-08-19 | 2015-11-11 | 广东益德环保科技有限公司 | 一种全生物降解材料及其制备方法和应用 |
CN106366587A (zh) * | 2016-08-26 | 2017-02-01 | 江苏允友成生物环保材料有限公司 | 一种生物可降解聚乳酸/淀粉复合材料的制备方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115011079A (zh) * | 2022-05-31 | 2022-09-06 | 东莞市惠国新材科技有限公司 | 一种聚合物材料及其制备方法和应用 |
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