CN109354857A - 微发泡pok复合材料及其制备方法和用途 - Google Patents

微发泡pok复合材料及其制备方法和用途 Download PDF

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CN109354857A
CN109354857A CN201811331441.4A CN201811331441A CN109354857A CN 109354857 A CN109354857 A CN 109354857A CN 201811331441 A CN201811331441 A CN 201811331441A CN 109354857 A CN109354857 A CN 109354857A
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pok
fretting map
composite material
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resin
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刘瑞来
林皓
胡家朋
徐婕
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FUJIAN ZHIQING ECOLOGICAL ENVIRONMENTAL PROTECTION Co.,Ltd.
WUYISHAN BIKONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd.
Wuyi University
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Wuyi University
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Abstract

本发明提供了一种微发泡POK复合材料,其包括按重量份数计的如下组分:POK树脂:40~80份;发泡剂:2~10份;增强剂:1~5份;增韧剂:5~15份;相容剂:3~10份;润滑剂:2~5份;抗氧化剂:0.5~2份。与现有技术相比,本发明具有如下的有益效果:1、本发明采用POK树脂作为基体树脂,利用POK树脂高耐磨、耐冲击等特性,极大的提高风叶的强度和使用寿命;2、通过添加发泡剂,采用微发泡技术制备微发泡POK风叶材料,不仅有效解决POK自重问题,降低能耗,而且可以减少POK树脂的使用量,降低成本;3、本发明采用的原材料易得,成型工艺简单,无需改变原有的生产设备,易于产业化生产。

Description

微发泡POK复合材料及其制备方法和用途
技术领域
本发明涉及一种微发泡POK复合材料及其制备方法和用途,属于风叶材料技术领域。
背景技术
传统风叶材料根据不同的用途,通常采用金属或者塑料材料制成,金属材质强度高,使用时间长,但成型工艺复杂,自重大且造价高;而采用传统的聚丙烯或尼龙等塑料材料虽然成型简单,造价低,但也存在弯曲强度低,容易脆裂,使用时间段等缺点。
聚酮(POK)作为一种新型结晶性工程塑料,抗冲击性能要强于尼龙材料3倍,表面硬度强于POM还要好,同时还具有优异的耐化学性,耐磨性能和高阻隔性,被广泛应用于汽车、电子、产业材料的零部件。但其自重较大,达到1.24g/cm3,而且单价较高,使其应用受到了一定的限制。
中国专利文献CN107189420A公开了一种高耐磨抗静电低翘曲POK-PA合金材料,包含按重量份数计的以下组分:POK 200-400份,PA6200-500份,相容冲击改性剂10-100份,增韧剂NG700210-30份,导电炭黑100-200份,填料10-100份,PTFE 10-30份,助剂1-10份。专利文献CN107815086A公开了一种用TLCP微纤增韧的POK材料及其制造方法,专利文献CN107189420A一种高耐磨抗静电低翘曲POK-PA合金材料,专利文献CN107189306A公开了一种电机风叶用高导热绝缘AS材料及其制备方法,但关于一种微发泡POK风叶材料及制备方法目前还未见相关报道。
发明内容
本发明的目的在于采用高分子材料改性技术,提供一种微发泡POK风叶材料及制备方法,以POK树脂作为基体树脂,采用微发泡技术,制备一种高强度、轻量化的风叶材料。
本发明是通过以下技术方案实现的:
本发明提供了一种微发泡POK复合材料,其包括按重量份数计的如下组分:
作为优选方案,所述POK树脂在240℃/2.16kg条件下的熔体流动速率为6~30g/10min。
作为优选方案,所述发泡剂的分解温度为240~290℃,所述发泡剂为碳酸盐类聚合物发泡微球。
作为优选方案,所述增强剂为中空玻璃微球,粒径为10~50μm,密度为0.1~0.3g/cm3
作为优选方案,所述增韧剂为MBS、POE、TPU弹性体中的至少一种。
作为优选方案,所述相容剂为POE-g-MAH和EPDM-g-MAH的混合物,POE-g-MAH和EPDM-g-MAH的重量比为1:(2~5)。
作为优选方案,所述润滑剂为硬脂酸、硬脂酸钙和N,N'-亚乙基双硬脂酰胺中的至少一种。
作为优选方案,所述抗氧化剂为抗氧化剂1076和抗氧化剂168按照(1~3):1的重量比复配的混合物。
一种如前述的微发泡POK复合材料的制备方法,其包括如下步骤:
将POK树脂、发泡剂、增强剂、增韧剂、相容剂、润滑剂和抗氧化剂依次投入高速混合机中,以100rpm的转速在常温条件下搅拌2h,得到混合料,备用;
将所述混合料通过挤出机熔融塑化挤出,冷却,造粒,得到所述微发泡POK复合材料。
作为优选方案,所述挤出机为平行双螺杆挤出机,挤出温度为150~220℃,喂料速率为50~200rpm。
一种如前述的微发泡POK复合材料在风机制造中的用途。
与现有技术相比,本发明具有如下的有益效果:
1、本发明采用POK树脂作为基体树脂,利用POK树脂高耐磨、耐冲击等特性,极大的提高风叶的强度和使用寿命;
2、通过添加发泡剂,采用微发泡技术制备微发泡POK风叶材料,不仅有效解决POK自重问题,降低能耗,而且可以减少POK树脂的使用量,降低成本;
3、本发明采用的原材料易得,成型工艺简单,无需改变原有的生产设备,易于产业化生产。
附图说明
通过阅读参照以下附图对非限制性实施例所作的详细描述,本发明的其它特征、目的和优点将会变得更明显:
图1为本发明实施例1中微发泡POK风叶断面100μm电镜扫描图。
具体实施方式
下面结合具体实施例对本发明进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本发明,但不以任何形式限制本发明。应当指出的是,对本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进。这些都属于本发明的保护范围。
在以下的实施例和对比例中,各原料采用下述成分:
POK聚酮树脂:型号M330A,240℃/2.16kg的熔体流动速率为60g/10min和型号M620A,240℃/2.16kg的熔体流动速率为6g/10min按照不同重量比复配而成,选自韩国晓星集团;
发泡剂:碳酸盐类聚合物发泡微球,分解温度为240~290℃,选自东莞市纳奥橡塑有限公司,型号为FM-220;
增强剂:中空玻璃微球,粒径为10~50μm,密度为0.1~0.3g/cc,选自东莞市黄江汇达波丽原料经营部,型号为HD-5020;
增韧剂:MBS、POE、TPU弹性体为市售产品;
相容剂:POE-g-MAH选自美国陶氏的GR216,EPDM-g-MAH选自南京塑泰高分子科技有限公司的ST-18;
润滑剂:硬脂酸、硬脂酸钙、EBS为市售产品;
抗氧化剂:抗氧化剂1076和抗氧化剂168均选自美国巴斯夫。
实施例1-5和对比例1-5:
表1实施例1-5和对比例1-5的组分和配比
制备方法:
按照表1的材料及配比称取相应材料依次投入高速混合机中,以100rpm的转速在常温条件下搅拌2h,出料备用;
将步骤1中得到的混合料通过挤出机熔融塑化挤出,冷却、造粒制得微发泡POK风叶复合材料。所述杆挤出机为平行双螺杆挤出机,挤出温度为150~220℃,喂料速度为50~200r/min;
将步骤2中得到的微发泡POK风叶复合材料在90℃温度下热风干燥6h后,加入注塑机注塑成标准样条,性能测试,所述注塑温度为240~270℃。
实施例6性能检测及结果评价
将上述实施例1-5和对比例1-5获得的样品,密度按照ASTM D792进行测试;弯曲强度按照国标ASTM D790进行测试,简支梁缺口冲击强度按照ISO179进行测试;拉伸强度按照ASTM D638进行测试;磨耗性能按照ISO 9352进行测试;测试结果如表2所示。
表2实施例1-5和对比例1-5的测试结果
*备注:磨耗系数越大,说明材料耐磨性能越差。
由表2性能测试结果可见:
(1)本发明通过添加耐高温发泡剂,协同增强剂和增韧剂等其他助剂,采用微发泡技术,不仅有效减低材料的密度,而且提高材料的物理机械性能;
(2)在对比例1-5中,与实施例1相比较,对比例1采用纯POK树脂,对比例2和对比例3分别未添加发泡剂和增强剂,对比例4添加发泡剂为1份,对比例5发泡剂为11份,对比例1-5材料综合性能明显劣于实施例1-5,实施例1综合性能最优;
(3)从图1实施例1中微发泡POK风叶断面电镜扫描图明显看出,材料中发泡微孔均匀,玻璃微珠均匀分布在POK基体树脂中,这与材料的机械性能测试结果相符。
以上对本发明的具体实施例进行了描述。需要理解的是,本发明并不局限于上述特定实施方式,本领域技术人员可以在权利要求的范围内做出各种变形或修改,这并不影响本发明的实质内容。

Claims (10)

1.一种微发泡POK复合材料,其特征在于,包括按重量份数计的如下组分:
2.如权利要求1所述的微发泡POK复合材料,其特征在于,所述POK树脂在240℃/2.16kg条件下的熔体流动速率为6~30g/10min。
3.如权利要求1所述的微发泡POK复合材料,其特征在于,所述发泡剂的分解温度为240~290℃,所述发泡剂为碳酸盐类聚合物发泡微球。
4.如权利要求1所述的微发泡POK复合材料,其特征在于,所述增强剂为中空玻璃微球,粒径为10~50μm,密度为0.1~0.3g/cm3
5.如权利要求1所述的微发泡POK复合材料,其特征在于,所述增韧剂为MBS、POE、TPU弹性体中的至少一种。
6.如权利要求1所述的微发泡POK复合材料,其特征在于,所述相容剂为POE-g-MAH和EPDM-g-MAH的混合物,POE-g-MAH和EPDM-g-MAH的重量比为1:(2~5)。
7.如权利要求1所述的微发泡POK复合材料,其特征在于,所述润滑剂为硬脂酸、硬脂酸钙和N,N'-亚乙基双硬脂酰胺中的至少一种。
8.如权利要求1所述的微发泡POK复合材料,其特征在于,所述抗氧化剂为抗氧化剂1076和抗氧化剂168按照(1~3):1的重量比复配的混合物。
9.一种如权利要求1~8中任意一项所述的微发泡POK复合材料的制备方法,其特征在于,包括如下步骤:
将POK树脂、发泡剂、增强剂、增韧剂、相容剂、润滑剂和抗氧化剂依次投入高速混合机中,以100rpm的转速在常温条件下搅拌2h,得到混合料,备用;
将所述混合料通过挤出机熔融塑化挤出,冷却,造粒,得到所述微发泡POK复合材料;
优选地,所述挤出机为平行双螺杆挤出机,挤出温度为150~220℃,喂料速率为50~200rpm。
10.一种如权利要求1所述的微发泡POK复合材料在风机制造中的用途。
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CN115725168A (zh) * 2022-11-22 2023-03-03 黄河三角洲京博化工研究院有限公司 一种pok多孔泡沫材料及其制备方法
CN116875030A (zh) * 2023-08-14 2023-10-13 广东瑞捷新材料股份有限公司 一种pok扩散板及其制备方法

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CN114539666A (zh) * 2022-01-27 2022-05-27 泉州师范学院 一种抗冲抗应力发白适合超临界发泡的聚丙烯复合材料及其制备方法
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CN116875030B (zh) * 2023-08-14 2024-04-16 广东瑞捷新材料股份有限公司 一种pok扩散板及其制备方法

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