CN115044116A - 一种散光农用薄膜 - Google Patents

一种散光农用薄膜 Download PDF

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CN115044116A
CN115044116A CN202110256349.1A CN202110256349A CN115044116A CN 115044116 A CN115044116 A CN 115044116A CN 202110256349 A CN202110256349 A CN 202110256349A CN 115044116 A CN115044116 A CN 115044116A
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calcium sulfate
sulfate whisker
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罗新峰
钟正平
朱建
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Jiangxi Fengzhu New Material Technology Co ltd
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Abstract

本发明公开了一种散光农用薄膜，原料包括树脂、散光剂硫酸钙晶须、分散剂、抗氧剂、紫外光吸收剂、增塑剂、耐候剂和防雾剂。本发明散光效果好，很好的解决了阳光直射造成的光照不均匀，农作物局部强弱差别的问题。推广使用该散光农用薄膜对于提升农作物产量有重要的意义。本发明薄膜制备方法是将农膜用树脂，硫酸钙晶须，偶联剂和分散剂加入到高速混合机中改性硫酸钙晶须，改性硫酸钙晶须于双螺杆中挤出造粒，得到硫酸钙晶须改性聚乙烯母粒。或将改性硫酸钙晶须单螺杆造粒机物料密炼机单螺杆，挤出造粒后得到硫酸钙晶须改性聚乙烯母粒。将聚乙烯母粒，硫酸钙晶须改性聚乙烯母粒和助剂进入到塑料挤出机内，通过吹胀工艺成为农用散光膜。

Description

一种散光农用薄膜
技术领域
本发明涉及农用产品技术领域，特别涉及一种散光农用薄膜。
背景技术
现有的农用聚烯烃薄膜膜存在一些缺点，由于阳光的直射，农作物受光照的强度不均匀，光照强的农作物光合作用强，光照弱的则光合作用弱，直接影响了棚内农作物的生长，大大的降低了阳光的的利用效率性。硫酸钙晶须又称石膏晶须，为纤维状或针状晶体，是一种以单晶形式生长的新型针状、具有均匀横截面、完整外形、内部结构完善的纤维微纳米材料，添加了硫酸钙晶须的农用聚烯烃薄膜对于阳光具有良好的散射作用。本发明提供了一种均匀照射的散光膜及其制作方法，解决了农用膜更好的利用光照进行散光以及折射，提高阳光的利用效率从而提升农作物的产量的问题。
发明内容
本发明的目的是提供一种散光农用薄膜及其制备方法。农用聚烯烃散光薄膜，包括散光剂硫酸钙晶须，分散剂，抗氧剂，紫外光吸收剂，增塑剂、耐候剂和防雾剂，树脂为聚乙烯，聚丙烯，聚苯乙烯、聚氯乙烯、聚碳酸酯、聚酯等。
本发明是将农膜用树脂，硫酸钙晶须，偶联剂和分散剂加入到高速混合机中改性硫酸钙晶须，改性硫酸钙晶须于双螺杆中挤出造粒，得到硫酸钙晶须改性聚乙烯母粒。或将改性硫酸钙晶须单螺杆造粒机物料密炼机单螺杆，挤出造粒后得到硫酸钙晶须改性聚乙烯母粒。将聚乙烯母粒，硫酸钙晶须改性聚乙烯母粒和助剂进入到塑料挤出机内，通过吹胀工艺成为农用散光膜。
本发明制备的散光膜散光效果好，很好的解决了阳光直射造成的光照不均匀，农作物局部强弱差别的问题。推广使用该散光农用薄膜对于提升农作物产量有重要的意义。
具体实施方式
下面结合实施例对本发明做进一步的说明。
以下结合实施例对本发明作进一步详细说明。
实施例1
本实施例硫酸钙晶须改性聚乙烯PE母粒由以下质量份数的原料制成 ：低密度聚乙烯树脂25份，硫酸钙晶须70 份，硬脂酸锌4份，偶联剂(KH550) 1份。制备方法 ：
（1）将聚乙烯树脂，硫酸钙晶须，偶联剂(KH550)和硬脂酸锌5份加入到高速混合机中混合20min，得到改性硫酸钙晶须混合物。
（2）将所述聚乙烯，改性硫酸钙晶须混合物和加入高速混合机中，于60℃下混合5-10min，将所得混合物于双螺杆中挤出造粒，料筒温度为 150℃，螺杆转速为 100 转 / 分钟，得到硫酸钙晶须改性聚乙烯母粒。
另，可将所述聚乙烯，改性硫酸钙晶须混合物单螺杆造粒机物料密炼后能进入单螺杆，挤出机，切粒，冷却，筛分，得到硫酸钙晶须改性聚乙烯母粒。
（3）将聚乙烯母粒85份，硫酸钙晶须改性聚乙烯母粒10份，抗氧剂1份，紫外光吸收剂1份，增塑剂1份、耐候剂1份和防雾剂0.5份，抗静电剂0.5份，经过干燥器斗进入到塑料挤出机内，通过吹胀工艺成为农用聚乙烯散光PE膜。机筒温度130-150℃/160-180℃，机头温度160-170℃，吹胀比2-4，螺杆转速30-50r/min，挤出机螺杆直径φ65mm，L/D为28，压缩比3.5。
实施例2
本实施例硫酸钙晶须改性聚乙烯PE母粒由以下质量份数的原料制成 ：低密度聚乙烯树脂45份，硫酸钙晶须50份，硬脂酸锌4份，偶联剂(KH560) 1份。制备方法 ：
（1）将聚乙烯树脂，硫酸钙晶须，偶联剂(KH560)和硬脂酸锌加入到高速混合机中混合20min，得到改性硫酸钙晶须混合物。
（2）将所述聚乙烯，改性硫酸钙晶须混合物和加入高速混合机中，于60℃下混合5-10min，将所得混合物于双螺杆中挤出造粒，料筒温度为 140℃，螺杆转速为 110 转 / 分钟，得到硫酸钙晶须改性聚乙烯母粒。
另，可将所述聚乙烯，改性硫酸钙晶须混合物单螺杆造粒机物料密炼后能进入单螺杆，挤出机，切粒，冷却，筛分，得到硫酸钙晶须改性聚乙烯母粒。
（3）将聚乙烯母粒85份，硫酸钙晶须改性聚乙烯母粒10份，抗氧剂1份，紫外光吸收剂1份，增塑剂1份、耐候剂1份和防雾剂0.5份，抗静电剂0.5份，经过干燥器斗进入到塑料挤出机内，通过吹胀工艺成为农用聚乙烯散光PE膜。机筒温度120-150℃/150-180℃，机头温度150-170℃，吹胀比2-4，螺杆转速30-50r/min，挤出机螺杆直径φ65mm，L/D为28，压缩比3.5。
实施例3
本实施例硫酸钙晶须改性聚氯乙烯PVC母粒由以下质量份数的原料制成 ：低密度聚氯乙烯树脂45份，硫酸钙晶须50份，硬脂酸钙4份，偶联剂(KH550) 1份。制备方法 ：
（1）将聚氯乙烯树脂，硫酸钙晶须，偶联剂(KH550)和硬脂酸锌加入到高速混合机中混合20min，得到改性硫酸钙晶须混合物。
（2）将所述聚氯乙烯，改性硫酸钙晶须混合物和加入高速混合机中，于60℃下混合5-10min，将所得混合物于双螺杆中挤出造粒，料筒温度为 140℃，螺杆转速为 110 转 /分钟，得到硫酸钙晶须改性聚氯乙烯母粒。
另，可将所述聚氯乙烯，改性硫酸钙晶须混合物单螺杆造粒机物料密炼后能进入单螺杆，挤出机，切粒，冷却，筛分，得到硫酸钙晶须改性聚氯乙烯母粒。
（3）将聚氯乙烯母粒85份，硫酸钙晶须改性聚氯乙烯母粒10份，抗氧剂1份，紫外光吸收剂1份，增塑剂1份、耐候剂1份和防雾剂0.5份，抗静电剂0.5份，经过干燥器斗进入到塑料挤出机内，通过吹胀工艺成为农用聚氯乙烯散光PVC膜。机筒温度120-150℃/150-180℃，机头温度150-170℃，吹胀比2-4，螺杆转速30-50r/min，挤出机螺杆直径φ65mm，L/D为28，压缩比3.5。
实施例4
本实施例硫酸钙晶须改性聚丙烯PP母粒由以下质量份数的原料制成 ：低密度聚丙烯树脂25份，硫酸钙晶须70 份，硬脂酸锌4份，偶联剂(KH550) 1份。制备方法 ：
（1）将聚丙烯树脂，硫酸钙晶须，偶联剂(KH550)和硬脂酸锌5份加入到高速混合机中混合20min，得到改性硫酸钙晶须混合物。
（2）将所述聚丙烯，改性硫酸钙晶须混合物和加入高速混合机中，于60℃下混合5-10min，将所得混合物于双螺杆中挤出造粒，料筒温度为 150℃，螺杆转速为 100 转 / 分钟，得到硫酸钙晶须改性聚丙烯母粒。
另，可将所述聚丙烯，改性硫酸钙晶须混合物单螺杆造粒机物料密炼后能进入单螺杆，挤出机，切粒，冷却，筛分，得到硫酸钙晶须改性聚丙烯母粒。
（3）将聚丙烯母粒85份，硫酸钙晶须改性聚丙烯母粒10份，抗氧剂1份，紫外光吸收剂1份，增塑剂1份、耐候剂1份和防雾剂0.5份，抗静电剂0.5份，经过干燥器斗进入到塑料挤出机内，通过吹胀工艺成为农用聚丙烯散光PP膜。机筒温度130-150℃/160-180℃，机头温度160-170℃，吹胀比2-4，螺杆转速30-50r/min，挤出机螺杆直径φ65mm，L/D为28，压缩比3.5。
实施例5
本实施例硫酸钙晶须改性聚丙烯PP母粒由以下质量份数的原料制成 ：低密度聚丙烯树脂25份，硫酸钙晶须70 份，硬脂酸锌4份，偶联剂(KH550) 1份。制备方法 ：
（1）将聚丙烯树脂，硫酸钙晶须，偶联剂(KH550)和硬脂酸锌5份加入到高速混合机中混合20min，得到改性硫酸钙晶须混合物。
（2）将所述聚丙烯，改性硫酸钙晶须混合物和加入高速混合机中，于60℃下混合5-10min，将所得混合物于双螺杆中挤出造粒，料筒温度为 150℃，螺杆转速为 100 转 / 分钟，得到硫酸钙晶须改性聚丙烯母粒。
另，可将所述聚丙烯，改性硫酸钙晶须混合物单螺杆造粒机物料密炼后能进入单螺杆，挤出机，切粒，冷却，筛分，得到硫酸钙晶须改性聚丙烯母粒。
（3）将聚丙烯母粒85份，硫酸钙晶须改性聚丙烯母粒10份，抗氧剂1份，紫外光吸收剂1份，增塑剂1份、耐候剂1份和防雾剂0.5份，抗静电剂0.5份，经过干燥器斗进入到塑料挤出机内，通过吹胀工艺成为农用聚丙烯散光PP膜。机筒温度130-150℃/160-180℃，机头温度160-170℃，吹胀比2-4，螺杆转速30-50r/min，挤出机螺杆直径φ65mm，L/D为28，压缩比3.5。

Claims (7)

1.一种散光农用薄膜，其特征在于，所述农用薄膜的原料包括树脂、散光剂硫酸钙晶须、分散剂、抗氧剂、紫外光吸收剂、增塑剂、耐候剂，防雾剂和偶联剂。
2.根据权利要求1所述的一种散光农用薄膜，其特征在于，所述树脂为聚烯烃（PO）、聚乙烯，聚丙烯，聚苯乙烯、聚氯乙烯、聚碳酸酯、乙烯-乙酸乙烯共聚物（EVA）、PBAT、聚乳酸（PLA）、乙烯-乙烯醇、聚酯、PS，ABS，PUR中的一种。
3.根据权利要求1所述的一种散光农用薄膜，其特征在于，所述散光剂硫酸钙晶须，硫酸钙晶须长径比 5~80，平均直径 0.5~10μm；所述分散剂为硬脂酸钙、硬脂酸锌或硬脂酸；所述偶联剂为硅烷偶联剂、钛酸酯或铝酸酯；所述抗氧剂为抗氧剂1010、1076、PKY-168或抗氧剂JC-242。
4.根据权利要求1所述的农用散光膜，其特征在于，所述农膜树脂、硫酸钙晶须和农膜助剂的质量比为(80～95):(0.1～5):(1～5)；优选地，所述农膜树脂、硫酸钙晶须和农膜助剂的质量比为(90～95):(1～3):(1～5)；所述农膜助剂包括分散剂、抗氧剂、紫外光吸收剂、增塑剂、耐候剂，防雾剂和偶联剂中至少两种的组合。
5.根据权利要求1所述的一种散光农用薄膜，其制备方法是是将农膜用树脂，硫酸钙晶须，偶联剂和分散剂加入到高速混合机中改性硫酸钙晶须，改性硫酸钙晶须于双螺杆中挤出造粒，得到硫酸钙晶须改性聚乙烯母粒，或将改性硫酸钙晶须单螺杆造粒机物料密炼机单螺杆，挤出造粒后得到硫酸钙晶须改性聚乙烯母粒；将聚乙烯母粒，硫酸钙晶须改性聚乙烯母粒和助剂进入到塑料挤出机内，通过吹胀工艺成为农用散光膜。
6.根据权利要求1所述的一种散光农用薄膜，硫酸钙晶须改性聚乙烯母粒的制备方法是将树脂，硫酸钙晶须，偶联剂和分散剂加入到高速混合机中混合，得到改性硫酸钙晶须混合物；将所述聚乙烯，改性硫酸钙晶须混合物和加入高速混合机中混合5-10min，将所得混合物于双螺杆中挤出造粒，得到硫酸钙晶须改性聚乙烯母粒。
7.根据权利要求1所述的一种散光农用薄膜，硫酸钙晶须改性聚乙烯母粒的制备方法将农膜母粒，硫酸钙晶须改性聚乙烯母粒，抗氧剂，紫外光吸收剂，增塑剂、耐候剂和防雾剂，抗静电剂等，经过干燥器斗进入到塑料挤出机内，通过吹胀工艺成为农用散光膜。
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CN116253949A (zh) * 2022-12-31 2023-06-13 江苏因倍思科技发展有限公司 一次性使用静脉营养输液袋及制备工艺

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116253949A (zh) * 2022-12-31 2023-06-13 江苏因倍思科技发展有限公司 一次性使用静脉营养输液袋及制备工艺

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