CN103524850A - 聚乙烯抗菌专用母料 - Google Patents

聚乙烯抗菌专用母料 Download PDF

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CN103524850A
CN103524850A CN201310468544.6A CN201310468544A CN103524850A CN 103524850 A CN103524850 A CN 103524850A CN 201310468544 A CN201310468544 A CN 201310468544A CN 103524850 A CN103524850 A CN 103524850A
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polyethylene
antibiosis
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plastic
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王世字
栾蓉
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Qingdao Yi Shibao Plastics Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract

本发明的目的是提供一种改善聚乙烯材料抗菌性的聚乙烯抗菌专用母料及其制备方法。抗菌塑料及抗菌家电等制品为人类抵抗细菌、保护健康树起了一道绿色的屏障。抗菌塑料是一类具备抑菌和杀菌性能的新型材料。由于塑料应用面宽、用量大，其制品与生活和工作环境密切相关，所以，抗菌塑料及其应用的意义十分重要。聚乙烯(PE)是五大合成树脂之一。聚乙烯无臭，无毒，手感似蜡，具有优良的耐低温性能(最低使用温度可达-70～-100℃)，化学稳定性好。本发明能够明显提高聚乙烯材料的力学性能，使其阻燃等级达到V0。

Description

聚乙烯抗菌专用母料
技术领域
本发明属聚乙烯材料生产技术领域, 具体说是一种改善聚乙烯原有不足，使其具有抗菌性能的聚乙烯抗菌专用母料及其制备方法。
背景技术
聚乙烯，英文名称：Polyethylene，缩写名称PE。其化学式为：（C2H4)n。结构式为：
-[-CH2-CH2-]-n。
抗菌塑料及抗菌家电等制品为人类抵抗细菌、保护健康树起了一道绿色的屏障。抗菌塑料是一类具备抑菌和杀菌性能的新型材料。由于塑料应用面宽、用量大，其制品与生活和工作环境密切相关，所以，抗菌塑料及其应用的意义十分重要。聚乙烯(PE)是五大合成树脂之一。聚乙烯无臭，无毒，手感似蜡，具有优良的耐低温性能(最低使用温度可达-70～-100℃)，化学稳定性好。
发明内容
本发明的目的是提供一种改善聚乙烯材料抗菌性的聚乙烯抗菌专用母料及其制备方法。
聚乙烯抗菌专用母料由下列重量比原料组成：
低密度聚乙烯（LDPE）（燕山石化）：50~90  
聚乙烯蜡：3.0~7.0  
线性低密度聚乙烯（LLDPE）:20~40  
硬脂酸润滑剂：1.0~3.0  
银离子抗菌剂：20~60  
抗氧剂（乙烯- 辛烯的共聚物）：0.8~1.2 
该聚乙烯抗菌专用母料的制备方法，包括下列步骤：先将上述各种原料在高速混合器中干混3-5 分钟，再置于双螺杆挤出机中经熔融挤出、冷却、切粒、包装成品即可；其中，双螺杆挤出机一区温度为90-100℃，二区为160-190℃，三区为200-210℃，四区为205-210℃ ；五区为190-200℃，停留时间为1-2 分钟，压力为10-15Mpa。    
本发明所得聚乙烯抗菌性专用母料的力学性能能够达到使用标准，并且能够极大提高聚乙烯材料的力学性能，使聚乙烯材料在使用时提高安全性能。
 
具体实施方式
    下面通过具体实施方式对本发明做进一步的说明，以下实施例仅是对本发明进行说明而非对其加以限定。
实施例1：
（1）按重量比分分别称取各原料如下：
低密度聚乙烯（LDPE）：70  
聚乙烯蜡：5.0  
线性低密度聚乙烯（LLDPE）:30  
硬脂酸润滑剂：2.0  
银离子抗菌剂：40.0  
抗氧剂（乙烯- 辛烯的共聚物）：1.0 
（2）先将上述各种原料在高速混合器中干混3-5 分钟，再置于双螺杆挤出机中经熔融挤出、冷却、切粒、包装成品即可；其中，双螺杆挤出机一区温度为90-100℃，二区为160-190℃，三区为200-210℃，四区为205-210℃ ；五区为190-200℃，停留时间为1-2 分钟，压力为10-15Mpa。
实验结果：
特性参数 测试标准 性能指标 测试数据
1 密度 g/cm3 ASTM/D 792 / 0.96
2 熔融指数 g/10min ASTM/D 1238 /   0.67
3 成型收缩率 % ASTM/D 955 / 1.0
4 拉伸强度 MPa ASTM/D 638 / 23
5 断裂伸长率 % ASTM/D 638 / 400
6 弯曲强度 MPa ASTM/D 790 / 24
7 弯曲模量MPa ASTM/D 790 / 900
8 悬臂梁缺口冲击强度J/m ASTM/D 256 / 453.7
9 热变形温度 oC ASTM/D 648 / 77.1
10 阻燃等级 UL—94 / V0
上述实验结果表明，聚乙烯抗菌专用母料的阻燃性能得到极为明显的改善和提高，阻燃等级达到V0级别，并且其余力学性能也得到提升和改善。
 
实施例2：
（1）按重量比分分别称取各原料如下：
低密度聚乙烯（LDPE）：50 
聚乙烯蜡：3.0  
线性低密度聚乙烯（LLDPE）:20  
硬脂酸润滑剂：1.0  
银离子抗菌剂：20  
抗氧剂（乙烯- 辛烯的共聚物）：0.8 
（2）先将上述各种原料在高速混合器中干混3-5 分钟，再置于双螺杆挤出机中经熔融挤出、冷却、切粒、包装成品即可；其中，双螺杆挤出机一区温度为90-100℃，二区为150-180℃，三区为200-210℃，四区为200-205℃ ；五区为190-200℃，停留时间为1-2 分钟，压力为10-15Mpa。 
实验结果：
特性参数 测试标准 性能指标 测试数据
1 密度 g/cm3 ASTM/D 792 / 0.85
2 熔融指数 g/10min ASTM/D 1238 /   0.56
3 成型收缩率 % ASTM/D 955 / 1.3
4 拉伸强度 MPa ASTM/D 638 / 21
5 断裂伸长率 % ASTM/D 638 / 387
6 弯曲强度 MPa ASTM/D 790 / 22
7 弯曲模量MPa ASTM/D 790 / 879
8 悬臂梁缺口冲击强度J/m ASTM/D 256 / 432.7
9 热变形温度 oC ASTM/D 648 / 74.9
10 阻燃等级 UL—94 / V0
   上述测试结果表明，聚乙烯抗菌专用母料的阻燃性能得到明显的改善和提高，达到V0等级。但是其热变形温度较实施例1为低。
 
实施例3：
（1）按重量比分分别称取各原料如下：
低密度聚乙烯（LDPE）：90  
聚乙烯蜡：7.0  
线性低密度聚乙烯（LLDPE）：40  
硬脂酸润滑剂： 3.0  
银离子抗菌剂：60  
抗氧剂（乙烯- 辛烯的共聚物）：1.2 
（2）先将上述各种原料在高速混合器中干混3-5分钟，再置于双螺杆挤出机中经熔融挤出、冷却、切粒、包装成品即可；其中，双螺杆挤出机一区温度为90-100℃，二区为150-180℃，三区为200-210℃，四区为200-205℃ ；五区为190-200℃，停留时间为1-2 分钟，压力为10-15Mpa。 
实验结果：
特性参数 测试标准 性能指标 测试数据
1 密度 g/cm3 ASTM/D 792 / 0.80
2 熔融指数 g/10min ASTM/D 1238 /   0.78
3 成型收缩率 % ASTM/D 955 / 1.5
4 拉伸强度 MPa ASTM/D 638 / 19
5 断裂伸长率 % ASTM/D 638 / 410
6 弯曲强度 MPa ASTM/D 790 / 26
7 弯曲模量MPa ASTM/D 790 / 921
8 悬臂梁缺口冲击强度J/m ASTM/D 256 / 432.7
9 热变形温度 oC ASTM/D 648 / 73.0
10 阻燃等级 UL—94 / V1
上述实验结果表明，聚乙烯抗菌专用母料的阻燃性能得到较为明显的改善和提高，但是相对于实施例1和实施例2的配比，其阻燃性能和热变形温度等，都存在一定差距。
 
上述实施例为本发明的举例说明，并不用来限制本发明。通过上述实验表明，其中实施例1为最优重量比，通过本方法制造的高阻燃性聚乙烯材料的熔融指数、热变形温度、成性收缩率和韧性等性能得到了明显改善。
发明所述的聚乙烯抗菌专用母料，能够克服聚乙烯原来存在的不足，对于聚乙烯材料的应用和进一步推广，具有十分重要的意义。也使得电器、仪器设备在使用时的安全系数得以提高。

Claims (3)

1.聚乙烯抗菌专用母料，其特征在于：由下列重量比原料组成，
  低密度聚乙烯（LDPE）：50~90  
聚乙烯蜡：3.0~7.0  
线性低密度聚乙烯（LLDPE）:20~40  
硬脂酸润滑剂：1.0~3.0  
银离子抗菌剂：20~60  
抗氧剂（乙烯- 辛烯的共聚物）：0.8~1.2 。
2.根据权利要求1所述的聚乙烯抗菌专用母料，其特征在于：最优重量比原料组成为：
  低密度聚乙烯（LDPE）：70  
聚乙烯蜡：5.0  
线性低密度聚乙烯（LLDPE）:30  
硬脂酸润滑剂：2.0  
银离子抗菌剂：40.0  
抗氧剂（乙烯- 辛烯的共聚物）：1.0。
3.根据权利要求1所述的聚乙烯抗菌专用母料，其特征在于：制备方法为，先将上述各种原料在高速混合器中干混3-5 分钟，再置于双螺杆挤出机中经熔融挤出、冷却、切粒、包装成品即可；其中，双螺杆挤出机一区温度为90-100℃，二区为160-190℃，三区为200-210℃，四区为205-210℃ ；五区为190-200℃，停留时间为1-2 分钟，压力为10-15Mpa。
CN201310468544.6A 2013-10-10 2013-10-10 聚乙烯抗菌专用母料 Pending CN103524850A (zh)

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CN105056627A (zh) * 2015-07-10 2015-11-18 天津市静海县远大工贸有限公司 一种接触抑菌的熔喷滤芯制备方法
CN106832523A (zh) * 2017-02-10 2017-06-13 金华市美居家业用品有限公司 一种抗菌浴球

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CN1789317A (zh) * 2004-12-17 2006-06-21 上海三成化工有限公司 薄膜用抗菌透气防水塑料粒料及其制造方法

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CN1789317A (zh) * 2004-12-17 2006-06-21 上海三成化工有限公司 薄膜用抗菌透气防水塑料粒料及其制造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105056627A (zh) * 2015-07-10 2015-11-18 天津市静海县远大工贸有限公司 一种接触抑菌的熔喷滤芯制备方法
CN106832523A (zh) * 2017-02-10 2017-06-13 金华市美居家业用品有限公司 一种抗菌浴球

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