CN107189375A - 增强阻燃pet工程塑料的制备方法 - Google Patents
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Abstract
本发明提供了一种增强阻燃PET工程塑料的制备方法，包括以下步骤：按照下列配比准备原料，PET切片 75‑85重量份，阻燃剂15‑20重量份，抗氧化剂1‑3重量份，增韧剂1‑3重量份，加入高速混合机中混合均匀，再加入长玻璃纤维作为增强剂；将混合料送入双螺杆挤出机进行熔融共混挤出，挤出温度为240～275℃，螺杆转速为160rpm；挤出料条经水冷、牵引拉伸、切粒机造粒，即得成品；其中，所述的阻燃剂为红磷母粒；所述的PET切片、阻燃剂、抗氧化剂、增韧剂和长玻璃纤维在混合前均经过干燥处理，干燥处理方法为160℃下干燥8小时。本发明的增强阻燃PET工程塑料的制备方法，能够制备出增强阻燃的PET工程塑料。
Description
技术领域
本发明涉及一种增强阻燃PET工程塑料的制备方法，属于改性工程塑料技术领域。
背景技术
工程塑料是指拉伸强度在50MPa以上，弯曲模量在2GPa以上，冲击强度在60J/m以上，长期使用温度在100摄氏度以上，用于汽车、机械、电子电器等行业的塑料。
改性工程塑料，是指在通用塑料和工程塑料的基础上，经过填充、共混、增强等方法加工，提高了阻燃性、强度、抗冲击性、韧性等方面的性能的塑料制品。 普通的塑料往往会有它自身的特性和缺陷，改性塑料就是给塑料改变一下性质，基本的技术包括：1、增强：将玻璃纤维等与塑料共混以增加塑料的机械强度。2、填充：将矿物等填充物与塑料共混，使塑料的收缩率、硬度、强度等性质得到改变。3、增韧：通过给普通塑料加入增韧剂共混以提高塑料的韧性，增韧改性后的产品：铁轨垫片。4、阻燃：给普通塑料树脂里面添加阻燃剂，即可使塑料具有阻燃特性，阻燃剂可以是一种或者是几种阻燃剂的复合体系，如溴+锑系，磷系，氮系，硅系，以及其他无机阻燃体系。5、耐寒：增加塑料在低温下的强度和韧性，一般塑料在低温下固有的低温脆性，使得在低温环境中应用受限，需要添加一些耐低温增韧剂改变塑料在低温下的脆性，例如汽车保险杠等塑件，一般要求耐寒。
PET作为工程塑料中的重要品种，在较宽的温度范围内具有优良的物理机械性能，长期使用温度可达120℃，电绝缘性优良，甚至在高温高频下，其电性能仍较好，但耐电晕性较差，抗蠕变性，耐疲劳性，耐摩擦性、尺寸稳定性都很好。近年来，PET以其优良的性能、较低的生产成本和较高的性价比而在汽车用塑料中所占比例不断增加。随着国内汽车电气电子等工业的蓬勃发展，人们对材料的要求越来越高，改性工程塑料的需求将大幅上升，对改性工程塑料的强度和阻燃等性能要求越来越高。
发明内容
本发明的目的是克服现有技术的不足之处，提供一种增强阻燃PET工程塑料的制备方法。
本发明的增强阻燃PET工程塑料的制备方法，包括以下步骤：按照下列配比准备原料，PET切片 75-85重量份，阻燃剂15-20重量份，抗氧化剂1-3重量份，增韧剂1-3重量份，加入高速混合机中混合均匀，再加入长玻璃纤维作为增强剂；将混合料送入双螺杆挤出机进行熔融共混挤出，挤出温度为240～275℃，螺杆转速为160rpm；挤出料条经水冷、牵引拉伸、切粒机造粒，即得成品；
其中，
所述的阻燃剂为红磷母粒；
所述的PET切片、阻燃剂、抗氧化剂、增韧剂和长玻璃纤维在混合前均经过干燥处理，干燥处理方法为160℃下干燥8小时。
优选地，
所述的原料包括下列成分：PET切片80重量份，阻燃剂18重量份，抗氧化剂2重量份，增韧剂2重量份。
本发明的增强阻燃PET工程塑料的制备方法，能够制备出增强阻燃的PET工程塑料。
具体实施方式
实施例1
本实施例的增强阻燃PET工程塑料的制备方法，包括以下步骤：按照下列配比准备原料，PET切片 75重量份，阻燃剂20重量份，抗氧化剂1重量份，增韧剂1重量份，加入高速混合机中混合均匀，再加入长玻璃纤维作为增强剂；将混合料送入双螺杆挤出机进行熔融共混挤出，挤出温度为255℃，螺杆转速为160rpm；挤出料条经水冷、牵引拉伸、切粒机造粒，即得成品；
其中，
所述的阻燃剂为红磷母粒；
所述的PET切片、阻燃剂、抗氧化剂、增韧剂和长玻璃纤维在混合前均经过干燥处理，干燥处理方法为160℃下干燥8小时。
实施例2
本实施例的增强阻燃PET工程塑料的制备方法，包括以下步骤：按照下列配比准备原料，PET切片 85重量份，阻燃剂15重量份，抗氧化剂3重量份，增韧剂3重量份，加入高速混合机中混合均匀，再加入长玻璃纤维作为增强剂；将混合料送入双螺杆挤出机进行熔融共混挤出，挤出温度为240℃，螺杆转速为160rpm；挤出料条经水冷、牵引拉伸、切粒机造粒，即得成品；
其中，
所述的阻燃剂为红磷母粒；
所述的PET切片、阻燃剂、抗氧化剂、增韧剂和长玻璃纤维在混合前均经过干燥处理，干燥处理方法为160℃下干燥8小时。
实施例3
本实施例的增强阻燃PET工程塑料的制备方法，包括以下步骤：按照下列配比准备原料，PET切片 80重量份，阻燃剂18重量份，抗氧化剂2重量份，增韧剂2重量份，加入高速混合机中混合均匀，再加入长玻璃纤维作为增强剂；将混合料送入双螺杆挤出机进行熔融共混挤出，挤出温度为275℃，螺杆转速为160rpm；挤出料条经水冷、牵引拉伸、切粒机造粒，即得成品；
其中，
所述的阻燃剂为红磷母粒；
所述的PET切片、阻燃剂、抗氧化剂、增韧剂和长玻璃纤维在混合前均经过干燥处理，干燥处理方法为160℃下干燥8小时。
Claims (2)
1.增强阻燃PET工程塑料的制备方法，其特征在于，按照下列配比准备原料，PET切片75-85重量份，阻燃剂15-20重量份，抗氧化剂1-3重量份，增韧剂1-3重量份，加入高速混合机中混合均匀，再加入长玻璃纤维作为增强剂；将混合料送入双螺杆挤出机进行熔融共混挤出，挤出温度为240～275℃，螺杆转速为160rpm；挤出料条经水冷、牵引拉伸、切粒机造粒，即得成品；
其中，
所述的阻燃剂为红磷母粒；
所述的PET切片、阻燃剂、抗氧化剂、增韧剂和长玻璃纤维在混合前均经过干燥处理，干燥处理方法为160℃下干燥8小时。
2.根据权利要求1所述的增强阻燃PET工程塑料的制备方法，其特征在于，所述的原料包括下列成分：PET切片 80重量份，阻燃剂18重量份，抗氧化剂2重量份，增韧剂2重量份。
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| CN112724617A (zh) * | 2020-12-29 | 2021-04-30 | 上海自立塑料制品有限公司 | 一种阻燃pet材料、打包带及其制备方法 |
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| CN101787184A (zh) * | 2009-12-30 | 2010-07-28 | 中国石油化工股份有限公司 | 一种快结晶聚酯工程塑料及其制备方法 |
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| CN101787184A (zh) * | 2009-12-30 | 2010-07-28 | 中国石油化工股份有限公司 | 一种快结晶聚酯工程塑料及其制备方法 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112724617A (zh) * | 2020-12-29 | 2021-04-30 | 上海自立塑料制品有限公司 | 一种阻燃pet材料、打包带及其制备方法 |
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