CN108976482A - 一种制备塑料膜的方法 - Google Patents
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- 239000011888 foil Substances 0.000 title claims abstract description 35
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- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229920002472 Starch Polymers 0.000 claims abstract description 17
- 235000019698 starch Nutrition 0.000 claims abstract description 17
- 239000008107 starch Substances 0.000 claims abstract description 17
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims abstract description 14
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 11
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 10
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 9
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 9
- 239000011787 zinc oxide Substances 0.000 claims abstract description 7
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 10
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- 239000012467 final product Substances 0.000 claims 1
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- 235000001630 Pyrus pyrifolia var culta Nutrition 0.000 abstract description 2
- 240000002609 Pyrus pyrifolia var. culta Species 0.000 abstract description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 abstract description 2
- 239000008120 corn starch Substances 0.000 abstract description 2
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Abstract
本发明公开了一种制备塑料膜的方法,所述塑料膜的原料配比为:淀粉40‑60份,甘油30‑40份,聚乙烯醇25‑35份,亲水型纳米二氧化硅4‑6份,抗氧剂3‑5份,增溶剂4‑6份,催化剂1‑3份,所述淀粉为玉米淀粉、小麦淀粉、大米淀粉、甘薯淀粉及马铃薯淀粉中的一种,所述催化剂由气相白炭黑、氧化锌和2‑巯基苯并噻唑按重量百分比10:3:2组成,所述抗氧剂为抗氧剂1010,所述增溶剂为聚山梨酯类。该制备塑料膜的方法,加工生产出的塑料膜,其结构更稳定,同时能够改善塑料膜的生物降解性能,原料来源广,配方、制备方法简单,生产成本低,力学性能佳,有完全降解性,降解速度快,而且对环境不造成污染,具有较高的环境效益和经济效益等优点。
Description
技术领域
本发明属于塑料膜技术领域,具体涉及一种制备塑料膜的方法。
背景技术
淀粉是一种天然可再生材料,其资源丰富、价格低廉,且容易受到微生物侵蚀,最后代谢为水和二氧化碳,因而具有优良的生物降解性能,适用于作为生物降解材料的原料成分。由于淀粉的亲水性太强,与大部分通用树脂之间的相容性很差,故使用时通常需要对淀粉进行改性处理。目前,以纳米二氧化硅或聚乙烯醇对淀粉进行改性处理生产可降解塑料膜的研究已经有很多报道,但其仍存在力学性能较差、降解速度缓慢、配方复杂等问题。
发明内容
本发明的目的在于提供一种制备塑料膜的方法,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:一种塑料膜,所述塑料膜的原料配比为:淀粉40-60份,甘油30-40份,聚乙烯醇25-35份,亲水型纳米二氧化硅4-6份,抗氧剂3-5份,增溶剂4-6份,催化剂1-3份。
优选的,所述塑料膜的原料配比为:淀粉50份,甘油35份,聚乙烯醇30份,亲水型纳米二氧化硅5份,抗氧剂4份,增溶剂5份,催化剂2份。
优选的,所述淀粉为玉米淀粉、小麦淀粉、大米淀粉、甘薯淀粉及马铃薯淀粉中的一种。
优选的,所述催化剂由气相白炭黑、氧化锌和2-巯基苯并噻唑按重量百分比10:3:2组成。
优选的,所述抗氧剂为抗氧剂1010。
优选的,所述增溶剂为聚山梨酯类。
一种制备塑料膜的方法,包括以下步骤:
S1、准确称取淀粉、亲水型纳米二氧化硅、增溶剂和抗氧剂,将淀粉、亲水型纳米二氧化硅、增溶剂和抗氧剂投入超高速混合机中,在4000-4500转/min下搅拌10-15min,得混合料A;
S2、将步骤S1中得到的混合料A、聚乙烯醇和甘油依次加入密炼机中,在转子转速为40-50转/min、温度为130-140℃下反应40-50min,得混合料B;
S3、准确称取气相白炭黑、氧化锌和2-巯基苯并噻唑,投入超高速混合机中,4000-4500转/min下搅拌15-20min,搅拌完成后得混合料C,将混合料C放入球磨机中球磨2-3h即得;
S4、将步骤S3中制得的催化剂与步骤S2中制得的混合料B混合,在转子转速为40-50转/min、温度为80-100℃下密炼15-20min,流延成膜,再将所得塑料膜在紫外辐照下辐照10-15min,将辐照后的塑料膜经干燥处理即得塑料膜。
本发明的技术效果和优点:该制备塑料膜的方法,加工生产出的塑料膜,其结构更稳定,同时能够改善塑料膜的生物降解性能,原料来源广,配方、制备方法简单,生产成本低,力学性能佳,有完全降解性,降解速度快,而且对环境不造成污染,具有较高的环境效益和经济效益等优点。
具体实施方式
下面将结合本发明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
一种制备塑料膜的方法,包括以下步骤:
S1、准确称取淀粉40份、亲水型纳米二氧化硅4份、增溶剂4份和抗氧剂3份,投入超高速混合机中,在4000-4500转/min下搅拌10-15min,得混合料A;
S2、将步骤S1中得到的混合料A、聚乙烯醇25份和甘油30份依次加入密炼机中,在转子转速为40-50转/min、温度为130-140℃下反应40-50min,得混合料B;
S3、准确称取气相白炭黑、氧化锌和2-巯基苯并噻唑,投入超高速混合机中,4000-4500转/min下搅拌15-20min,搅拌完成后得混合料C,将混合料C放入球磨机中球磨2-3h即得;
S4、将步骤S3中制得的催化剂1份与步骤S2中制得的混合料B混合,在转子转速为40-50转/min、温度为80-100℃下密炼15-20min,流延成膜,再将所得塑料膜在紫外辐照下辐照10-15min,将辐照后的塑料膜经干燥处理即得塑料膜。
实施例2
一种制备塑料膜的方法,其特征在于:包括以下步骤:
S1、准确称取淀粉50份、亲水型纳米二氧化硅5份、增溶剂5份和抗氧剂4份,投入超高速混合机中,在4000-4500转/min下搅拌10-15min,得混合料A;
S2、将步骤S1中得到的混合料A、聚乙烯醇30份和甘油35份依次加入密炼机中,在转子转速为40-50转/min、温度为130-140℃下反应40-50min,得混合料B;
S3、准确称取气相白炭黑、氧化锌和2-巯基苯并噻唑,投入超高速混合机中,4000-4500转/min下搅拌15-20min,搅拌完成后得混合料C,将混合料C放入球磨机中球磨2-3h即得;
S4、将步骤S3中制得的催化剂2份与步骤S2中制得的混合料B混合,在转子转速为40-50转/min、温度为80-100℃下密炼15-20min,流延成膜,再将所得塑料膜在紫外辐照下辐照10-15min,将辐照后的塑料膜经干燥处理即得塑料膜。
实施例3
一种制备塑料膜的方法,其特征在于:包括以下步骤:
S1、准确称取淀粉60份、亲水型纳米二氧化6份、增溶剂6份和抗氧剂5份,投入超高速混合机中,在4000-4500转/min下搅拌10-15min,得混合料A;
S2、将步骤S1中得到的混合料A、聚乙烯醇35份和甘油40份依次加入密炼机中,在转子转速为40-50转/min、温度为130-140℃下反应40-50min,得混合料B;
S3、准确称取气相白炭黑、氧化锌和2-巯基苯并噻唑,投入超高速混合机中,4000-4500转/min下搅拌15-20min,搅拌完成后得混合料C,将混合料C放入球磨机中球磨2-3h即得;
S4、将步骤S3中制得的催化剂3份与步骤S2中制得的混合料B混合,在转子转速为40-50转/min、温度为80-100℃下密炼15-20min,流延成膜,再将所得塑料膜在紫外辐照下辐照10-15min,将辐照后的塑料膜经干燥处理即得塑料膜。
最后应说明的是:以上所述仅为本发明的优选实施例而已,并不用于限制本发明,尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (1)
1.一种制备塑料膜的方法,其特征在于:包括以下步骤:
S1、准确称取淀粉50份、亲水型纳米二氧化硅5份、增溶剂5份和抗氧剂4份,投入超高速混合机中,在4000-4500转/min下搅拌10-15min,得混合料A;
S2、将步骤S1中得到的混合料A、聚乙烯醇30份和甘油35份依次加入密炼机中,在转子转速为40-50转/min、温度为130-140℃下反应40-50min,得混合料B;
S3、准确称取气相白炭黑、氧化锌和2-巯基苯并噻唑,投入超高速混合机中,4000-4500转/min下搅拌15-20min,搅拌完成后得混合料C,将混合料C放入球磨机中球磨2-3h即得;
S4、将步骤S3中制得的催化剂2份与步骤S2中制得的混合料B混合,在转子转速为40-50转/min、温度为80-100℃下密炼15-20min,流延成膜,再将所得塑料膜在紫外辐照下辐照10-15min,将辐照后的塑料膜经干燥处理即得塑料膜。
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CN111925616B (zh) * | 2020-07-23 | 2022-11-08 | 安徽瑞鸿新材料科技有限公司 | 利用pva/生物基复合材料制备农用地膜的方法 |
CN115246970A (zh) * | 2021-04-28 | 2022-10-28 | 中国石油化工股份有限公司 | 一种亲水pvc组合材料及制备方法 |
CN115246970B (zh) * | 2021-04-28 | 2023-04-28 | 中国石油化工股份有限公司 | 一种亲水pvc组合材料及制备方法 |
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