CN114196094A - 一种抗静电母粒及其制备方法 - Google Patents

一种抗静电母粒及其制备方法 Download PDF

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CN114196094A
CN114196094A CN202111570075.XA CN202111570075A CN114196094A CN 114196094 A CN114196094 A CN 114196094A CN 202111570075 A CN202111570075 A CN 202111570075A CN 114196094 A CN114196094 A CN 114196094A
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王恩伟
李冬
郑强
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Henan Junhua Development Co ltd
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Abstract

本发明属于塑料技术领域，具体公开一种抗静电塑料母粒，包括载体树脂10～40份、功能性填料50～80份、增韧剂0.5～1份、抗静电剂1～5份、偶联剂0.5～1.5份、分散剂1～2份、润滑剂2～5份，所述抗静电剂为阴离子抗静电剂，本发明采用阴离子抗静电剂，三聚氰胺及衍生物在高温燃烧时释放出氮气，为无毒无卤抗静电剂，且由于偶联剂与分散剂的作用，抗静电剂更易于均匀分散于载体树脂中，起到抗静电剂作用，同时没有降低母粒的机械性能。

Description

一种抗静电母粒及其制备方法
技术领域
本发明属于塑料技术领域，尤其涉及一种抗静电塑料母粒。
背景技术
塑料是一种重要的有机高分子合成材料，按应用领域可分为通用塑料、工程塑料、特种工程塑料等；按热力学性质可分为热塑性塑料和热固性塑料。因此，塑料被广泛应用于农业、电子电气、交通、建筑、包装、国防、日常生活等诸多领域。但塑料在加工过程中，存在污染大、分散不均匀、加工困难等问题，且加工成本很高，其物料化学性能达不到预期。
纳米碳酸钙在塑料中起着填充和补强的作用，不仅降低成本、提高了塑料的耐热性、加工性能、改善了光学性能，而且对塑料冲击强度的增韧及混炼过程中的黏流性具有明显的效果，提高了塑料的拉伸强度、弯曲强度、热变形温度、滞热性和尺寸稳定性。
塑料母粒的出现，解决了污染大、分散不均匀、加工困难等技术问题，且降低了成本，同时赋予塑料良好的物理化学性能，现有的塑料制品由于缺乏防静电的处理，在冬季干燥寒冷的季节很多塑料制品表面会吸附一些微小颗粒，因此需要开发一种防静电的塑料母粒以改善上述情况。
发明内容
本发明目的在于提供一种抗静电塑料母粒，同时提供其相应的制备方法是本发明的另一发明目的。
基于上述目的，本发明采取以下技术方案：
一种抗静电塑料母粒，由以下重量份的原料组成：载体树脂10～40份、功能性填料50～80份、增韧剂 0.5～1份、抗静电剂1～5份、偶联剂 0.5～1.5份、分散剂1～2份、润滑剂2～5份，所述抗静电剂为阴离子抗静电剂。
所述阴离子抗静电剂为烷基磺酸钠、磷酸钠或二硫代氨基甲酸钠中的任意一种。
所述载体树脂为聚乙烯、聚丙烯、聚氯乙烯、聚苯乙烯、ABS、聚甲醛、聚酰胺中的一种或两种以上的混合物。
所述功能性填料由改性纳米碳酸钙与氧化石墨烯按质量比为（7～9）︰（1～3）混合制成，改性纳米碳酸钙的制备过程：1）皂化反应；将浓度为10%的脂肪酸加入皂化罐中，然后添加占脂肪酸质量12%的氢氧化钠，于75～85℃，进行皂化反应10～20min，得脂肪酸皂化液；
2）改性：先将纳米碳酸钙加入水中配制成浓度为10-15%的浆料，然后添加步骤1）的脂肪酸皂化液，于80～90℃，混合50～65min，过滤、干燥、粉碎，得改性纳米碳酸钙；脂肪酸的质量为纳米碳酸钙质量的4%。
所述改性纳米碳酸钙的粒径为40～80nm，所述改性纳米二氧化硅的粒径为10～30nm。
所述增韧剂为聚丙烯纤维。
制备阻燃塑料母粒的方法，包括以下步骤：
1) 于温度为80～120℃、转速为1000～5000r/min下，将功能性填料、抗静电剂、偶联剂、分散剂混合，然后添加载体树脂、增韧剂、润滑剂，混合，得混合物料；
2)将步骤1)混合物料进行熔融共混，挤出、水冷、造粒、干燥、包装，得阻燃塑料母粒。
步骤2)中挤出时，采用双螺杆挤出机，挤出条件为：挤出转速为20～60r/min，挤出温度为180～260℃。
与现有技术相比，本发明具有以下有益效果：
1) 本发明采用阴离子抗静电剂，三聚氰胺及衍生物在高温燃烧时释放出氮气，为无毒无卤抗静电剂，且由于偶联剂与分散剂的作用，抗静电剂更易于均匀分散于载体树脂中，起到抗静电剂作用，同时没有降低母粒的机械性能；
2)本发明所采用的功能性填料为改性纳米碳酸钙与氧化石墨烯的混合物，纳米碳酸钙经脂肪酸改性，与载体树脂具有良好的相容性，均匀地分散于树脂中，起到增强增韧效果；氧化石墨烯具有比表面积大、孔结构丰富的特点，经硅烷偶联剂改性，与改性纳米碳酸钙起协同作用，提高了母粒的机械性能；
3)本发明的增韧剂提高了母粒的耐候性，制得的母粒不仅具有良好的机械性能，而且阻燃、耐老化，应用前景广阔，工艺简单、易于工业化。
具体实施方式
实施例1
一种阻燃塑料母粒，由以下重量份的原料组成：载体树脂（聚乙烯）15份、功能性填料75份、增韧剂0.5份、抗静电剂5份、偶联剂（钛酸酯偶联剂）1份、分散剂（硬脂酸锌）1.5份、润滑剂（硬脂酸甘油酯）2份，所述抗静电剂为烷基磺酸钠。所述功能性填料由改性纳米碳酸钙与氧化石墨烯按质量比为9︰1混合制成。所述改性纳米碳酸钙的粒径为40～80nm，所述氧化石墨烯的粒径为10～30nm。
改性纳米碳酸钙的制备过程：1）皂化反应；将浓度为10%的脂肪酸加入皂化罐中，然后添加占脂肪酸质量12%的氢氧化钠，于80℃，进行皂化反应15min，得脂肪酸皂化液；
2）改性：先将纳米碳酸钙加入水中配制成浓度为10%的浆料，然后添加步骤1）的脂肪酸皂化液，于85℃，混合60min，过滤、干燥、粉碎，得改性纳米碳酸钙；脂肪酸的质量为纳米碳酸钙质量的4%。
制备抗静电塑料母粒的方法，包括以下步骤：
1) 于温度为90℃、转速为2000r/min下，将功能性填料、抗静电剂、偶联剂、分散剂在高速混合机中混合5min，然后添加载体树脂、增韧剂、润滑剂，混合10min，得混合物料；
2)将步骤1)混合物料加入到喂料机中，在双螺杆挤出机的作用下进行熔融共混，挤出、水冷、造粒、干燥、包装，得阻燃塑料母粒。挤出转速为30r/min，挤出温度为180℃。
实施例2
实施例2与实施例1的不同之处在于：一种阻燃塑料母粒，由以下重量份的原料组成：载体树脂（聚丙烯）40份、功能性填料80份、增韧剂1份、抗静电剂5份、偶联剂（硼酸酯偶联剂）1.5份、分散剂（硬脂酸镁）2份、润滑剂（聚乙烯蜡）5份，所述功能性填料由改性纳米碳酸钙与氧化石墨烯按质量比为8︰2混合制成。所述改性纳米碳酸钙的粒径为40～80nm，所述氧化石墨烯的粒径为10～30nm。
改性纳米碳酸钙的制备过程：1）皂化反应；将浓度为10%的脂肪酸加入皂化罐中，然后添加占脂肪酸质量12%的氢氧化钠，于85℃，进行皂化反应20min，得脂肪酸皂化液；
2）改性：先将纳米碳酸钙加入水中配制成浓度为15%的浆料，然后添加步骤1）的脂肪酸皂化液，于90℃，混合65min，过滤、干燥、粉碎，得改性纳米碳酸钙；脂肪酸的质量为纳米碳酸钙质量的4%。
制备抗静电塑料母粒的方法，包括以下步骤：
1) 于温度为120℃、转速为5000r/min下，将功能性填料、抗静电剂、偶联剂、分散剂在高速混合机中混合5min，然后添加载体树脂、增韧剂、润滑剂，混合10min，得混合物料；
2)将步骤1)混合物料加入到喂料机中，在双螺杆挤出机的作用下进行熔融共混，挤出、水冷、造粒、干燥、包装，得阻燃塑料母粒。挤出转速为20r/min，挤出温度为180℃。
实施例3
实施例3与实施例1的不同之处在于：一种阻燃塑料母粒，由以下重量份的原料组成：载体树脂（聚氯乙烯）10份、功能性填料50份、增韧剂0.5份、抗静电剂1份、偶联剂（铝酸酯偶联剂）0.5份、分散剂（硬脂酸酰胺）1份、润滑剂（硬脂酸甘油酯）2份，
改性纳米碳酸钙与改性纳米二氧化硅的制备方法参照实施例1。
制备阻燃塑料母粒的方法，包括以下步骤：
1) 于温度为80℃、转速为1000r/min下，将功能性填料、抗静电剂、偶联剂、分散剂在高速混合机中混合5min，然后添加载体树脂、增韧剂、润滑剂，混合10min，得混合物料；
2)将步骤1)混合物料加入到喂料机中，在双螺杆挤出机的作用下进行熔融共混，挤出、水冷、造粒、干燥、包装，得阻燃塑料母粒。挤出转速为60r/min，挤出温度为260℃。

Claims (8)

1.一种抗静电塑料母粒，其特征在于，由以下重量份的原料组成：载体树脂10～40份、功能性填料50～80份、增韧剂 0.5～1份、抗静电剂1～5份、偶联剂 0.5～1.5份、分散剂1～2份、润滑剂 2～5份，所述抗静电剂为阴离子抗静电剂。
2.如权利要求1所述的抗静电塑料母粒，其特征在于，所述阴离子抗静电剂为烷基磺酸钠、磷酸钠或二硫代氨基甲酸钠中的任意一种。
3.如权利要求1所述的抗静电塑料母粒，其特征在于，所述载体树脂为聚乙烯、聚丙烯、聚氯乙烯、聚苯乙烯、ABS、聚甲醛、聚酰胺中的一种或两种以上的混合物。
4.如权利要求1所述的抗静电塑料母粒，其特征在于，所述功能性填料由改性纳米碳酸钙与氧化石墨烯按质量比为（7～9）︰（1～3）混合制成，改性纳米碳酸钙的制备过程：1）皂化反应；将浓度为10%的脂肪酸加入皂化罐中，然后添加占脂肪酸质量12%的氢氧化钠，于75～85℃，进行皂化反应10～20min，得脂肪酸皂化液；
2）改性：先将纳米碳酸钙加入水中配制成浓度为10-15%的浆料，然后添加步骤1）的脂肪酸皂化液，于80～90℃，混合50～65min，过滤、干燥、粉碎，得改性纳米碳酸钙；脂肪酸的质量为纳米碳酸钙质量的4%。
5.如权利要求4所述的抗静电塑料母粒，其特征在于，所述改性纳米碳酸钙的粒径为40～80nm，所述氧化石墨烯的粒径为10～30nm。
6.如权利要求1～5任一所述的抗静电塑料母粒，其特征在于，所述增韧剂为聚丙烯纤维。
7.制备权利要求1所述抗静电塑料母粒的方法，其特征在于，包括以下步骤：
1) 于温度为80～120℃、转速为1000～5000r/min下，将功能性填料、抗静电剂、偶联剂、分散剂混合，然后添加载体树脂、增韧剂、润滑剂，混合，得混合物料；
2)将步骤1)混合物料进行熔融共混，挤出、水冷、造粒、干燥、包装，得抗静电塑料母粒。
8.如权利要求7所述的制备抗静电塑料母粒的方法，其特征在于，步骤2)中挤出时，采用双螺杆挤出机，挤出条件为：挤出转速为20～60r/min，挤出温度为180～260℃。
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Cited By (1)

* Cited by examiner, † Cited by third party
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CN115181391A (zh) * 2022-06-27 2022-10-14 茂泰(福建)鞋材有限公司 一种热塑性橡胶鞋底、用于热塑性橡胶鞋底的防静电耐滑组合物及其制备工艺

Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN115181391A (zh) * 2022-06-27 2022-10-14 茂泰(福建)鞋材有限公司 一种热塑性橡胶鞋底、用于热塑性橡胶鞋底的防静电耐滑组合物及其制备工艺
CN115181391B (zh) * 2022-06-27 2024-05-10 茂泰(福建)新材料科技有限公司 一种热塑性橡胶鞋底、用于热塑性橡胶鞋底的防静电耐滑组合物及其制备工艺

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