CN106188740A - 一种pe保温膜及其制备方法 - Google Patents
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Abstract
本发明公开了一种PE保温膜及其制备方法,原料为:PE、PP微粉、硬脂酸钙、LDPE、二氧化钛、抗氧剂1010、碳酸钙、PP、POE和BHT;产品撕裂强度130‑150kN/m,拉伸强度20‑24MPa,粘结强度0.21‑0.25MPa;伸长率400‑600%,防雾滴天数150‑160天,透光率89‑91%;杨氏模量430‑450MPa,柔韧性和弹性恢复性好,原料简单易得,制备方法简单,抗冲击能1.55‑1.75J。
Description
技术领域
本发明涉及PE材料技术领域,尤其涉及一种PE保温膜及其制备方法。
背景技术
聚乙烯为典型的热塑性塑料,是无臭、无味、无毒的可燃性白色粉末。成型加工的PE树脂均是经挤出造粒的蜡状颗粒料,外观呈乳白色。其分子量在1万一loa万范围内。分子量超过10万的则为超高分子量聚乙烯f UHMWPE3。分子量越高,其物理力学性能越好,越接近工程材料的要求水平。但分子量越高,其加工的难度也随之增大。聚乙烯熔点为100-130C·其耐低温性能优良。在-60℃下仍可保持良好的力学性能,但使用温度在80~110℃。
聚乙烯化学稳定性较好,室温下可耐稀硝酸、稀硫酸和任何浓度的盐酸、氢氟酸、磷酸、甲酸、醋酸、氨水、胺类、过氧化氢、氢氧化钠、氢氧化钾等溶液。但不耐强氧化的腐蚀,如发烟硫酸·浓硝酸、铬酸与硫酸的混合液。在室温下上述溶剂会对聚乙烯产生缓慢的侵蚀作用,而在90-100℃下,浓硫酸和浓硝酸会快速地侵蚀聚乙烯,使其破坏或分解。
聚乙烯在大气、阳光和氧的作用下,会发生老化,变色、龟裂、变脆或粉化,丧失其力学性能。在成型加工温度下,也会因氧化作用,使其熔体戮度下降,发生变色、出现条纹,故而在成型加工和使用过程或选材时应予以注意。正因为聚乙烯拥有如上特质,容易加工成型,因此聚乙烯的再生回收具有非常深远的价值。
发明内容
本发明提供一种拉伸强度高、伸长率高和撕裂强度高的PE保温膜及其制备方法,解决现有PE材料断裂伸长率和拉伸强度低等技术问题。
本发明采用以下技术方案:一种PE保温膜,其原料按质量份数配比如下:PE100份,PP微粉0.1-0.5份,硬脂酸钙0.2-0.6份,LDPE8-12份,二氧化钛1-5份,抗氧剂1010为0.3-0.7份,碳酸钙10-20份,PP5-15份,POE10-12份,BHT0.2-0.4份。
作为本发明的一种优选技术方案:所述PE保温膜的原料按质量份数配比如下:PE100份,PP微粉0.1份,硬脂酸钙0.2份,LDPE8份,二氧化钛1份,抗氧剂1010为0.3份,碳酸钙10份,PP5份,POE10份,BHT0.2份。
作为本发明的一种优选技术方案:所述PE保温膜的原料按质量份数配比如下:PE100份,PP微粉0.5份,硬脂酸钙0.6份,LDPE12份,二氧化钛5份,抗氧剂1010为0.7份,碳酸钙20份,PP15份,POE12份,BHT0.4份。
作为本发明的一种优选技术方案:所述PE保温膜的原料按质量份数配比如下:PE100份,PP微粉0.3份,硬脂酸钙0.4份,LDPE10份,二氧化钛3份,抗氧剂1010为0.5份,碳酸钙15份,PP10份,POE11份,BHT0.3份。
一种制备所述的PE保温膜的方法,步骤为:
第一步:按照质量份数配比称取PE、PP微粉、硬脂酸钙、LDPE、二氧化钛、抗氧剂1010、碳酸钙、PP、POE和BHT;
第二步:将原料投入捏合机中,升温至100-120℃,捏合20-30min;
第三步:捏合后在200-240℃下,挤出吹膜,连接体温度230℃,机头温度240℃,螺杆转速75r/min,牵引速度60r/min,吹胀比3。
有益效果
本发明所述一种PE保温膜及其制备方法采用以上技术方案与现有技术相比,具有以下技术效果:1、产品撕裂强度130-150kN/m,拉伸强度20-24MPa,粘结强度0.21-0.25MPa;2、伸长率400-600%,防雾滴天数150-160天,透光率89-91%;3、杨氏模量430-450MPa,柔韧性和弹性恢复性好,原料简单易得,制备方法简单,抗冲击能1.55-1.75J,可以广泛生产并不断代替现有材料。
具体实施方式
以下结合实例对本发明作进一步的描述,实施例仅用于对本发明进行说明,并不构成对权利要求范围的限制,本领域技术人员可以想到的其他替代手段,均在本发明权利要求范围内。
实施例1:
第一步:按照质量份数配比称取PE100份,PP微粉0.1份,硬脂酸钙0.2份,LDPE8份,二氧化钛1份,抗氧剂1010为0.3份,碳酸钙10份,PP5份,POE10份,BHT0.2份。
第二步:将原料投入捏合机中,升温至100℃,捏合20min。
第三步:捏合后在200-240℃下,挤出吹膜,连接体温度230℃,机头温度240℃,螺杆转速75r/min,牵引速度60r/min,吹胀比3。
产品撕裂强度130kN/m,拉伸强度20MPa,粘结强度0.21MPa;伸长率400%,防雾滴天数150天,透光率89%;杨氏模量430MPa,柔韧性和弹性恢复性好,原料简单易得,制备方法简单,抗冲击能1.55J。
实施例2:
第一步:按照质量份数配比称取PE100份,PP微粉0.5份,硬脂酸钙0.6份,LDPE12份,二氧化钛5份,抗氧剂1010为0.7份,碳酸钙20份,PP15份,POE12份,BHT0.4份。
第二步:将原料投入捏合机中,升温至120℃,捏合30min。
第三步:捏合后在200-240℃下,挤出吹膜,连接体温度230℃,机头温度240℃,螺杆转速75r/min,牵引速度60r/min,吹胀比3。
产品撕裂强度140kN/m,拉伸强度22MPa,粘结强度0.23MPa;伸长率500%,防雾滴天数155天,透光率90%;杨氏模量440MPa,柔韧性和弹性恢复性好,原料简单易得,制备方法简单,抗冲击能1.65J。
实施例3:
第一步:按照质量份数配比称取PE100份,PP微粉0.3份,硬脂酸钙0.4份,LDPE10份,二氧化钛3份,抗氧剂1010为0.5份,碳酸钙15份,PP10份,POE11份,BHT0.3份。
第二步:将原料投入捏合机中,升温至110℃,捏合25min。
第三步:捏合后在200-240℃下,挤出吹膜,连接体温度230℃,机头温度240℃,螺杆转速75r/min,牵引速度60r/min,吹胀比3。产品撕裂强度150kN/m,拉伸强度24MPa,粘结强度0.25MPa;伸长率600%,防雾滴天数160天,透光率91%;杨氏模量450MPa,柔韧性和弹性恢复性好,原料简单易得,制备方法简单,抗冲击能1.75J。
Claims (5)
1.一种PE保温膜,其特征在于,所述PE保温膜的原料按质量份数配比如下:PE100份,PP微粉0.1-0.5份,硬脂酸钙0.2-0.6份,LDPE8-12份,二氧化钛1-5份,抗氧剂1010为0.3-0.7份,碳酸钙10-20份,PP5-15份,POE10-12份,BHT0.2-0.4份。
2.根据权利要求1所述的一种PE保温膜,其特征在于,所述PE保温膜的原料按质量份数配比如下:PE100份,PP微粉0.1份,硬脂酸钙0.2份,LDPE8份,二氧化钛1份,抗氧剂1010为0.3份,碳酸钙10份,PP5份,POE10份,BHT0.2份。
3.根据权利要求1所述的一种PE保温膜,其特征在于,所述PE保温膜的原料按质量份数配比如下:PE100份,PP微粉0.5份,硬脂酸钙0.6份,LDPE12份,二氧化钛5份,抗氧剂1010为0.7份,碳酸钙20份,PP15份,POE12份,BHT0.4份。
4.根据权利要求1所述的一种PE保温膜,其特征在于,所述PE保温膜的原料按质量份数配比如下:PE100份,PP微粉0.3份,硬脂酸钙0.4份,LDPE10份,二氧化钛3份,抗氧剂1010为0.5份,碳酸钙15份,PP10份,POE11份,BHT0.3份。
5.一种制备权利要求1所述的PE保温膜的方法,其特征在于,包括如下步骤:
第一步:按照质量份数配比称取PE、PP微粉、硬脂酸钙、LDPE、二氧化钛、抗氧剂1010、碳酸钙、PP、POE和BHT;
第二步:将原料投入捏合机中,升温至100-120℃,捏合20-30min;
第三步:捏合后在200-240℃下,挤出吹膜,连接体温度230℃,机头温度240℃,螺杆转速75r/min,牵引速度60r/min,吹胀比3。
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CN106867082A (zh) * | 2017-04-13 | 2017-06-20 | 杨寨 | 一种温室聚乙烯树脂塑料薄膜及其制备方法 |
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CN1358791A (zh) * | 2000-12-12 | 2002-07-17 | 海尔科化工程塑料国家工程研究中心有限公司 | 一种制造农用棚膜用聚合物无机纳米复合组合物及其制备方法 |
CN103937075A (zh) * | 2014-05-06 | 2014-07-23 | 康泰塑胶科技集团有限公司 | 一种聚乙烯波纹管材及其制备方法 |
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CN1358791A (zh) * | 2000-12-12 | 2002-07-17 | 海尔科化工程塑料国家工程研究中心有限公司 | 一种制造农用棚膜用聚合物无机纳米复合组合物及其制备方法 |
CN103937075A (zh) * | 2014-05-06 | 2014-07-23 | 康泰塑胶科技集团有限公司 | 一种聚乙烯波纹管材及其制备方法 |
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CN106867082A (zh) * | 2017-04-13 | 2017-06-20 | 杨寨 | 一种温室聚乙烯树脂塑料薄膜及其制备方法 |
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Application publication date: 20161207 |