CN103756152A - 一种用于线圈骨架的无卤阻燃聚丙烯复合材料料及其制备方法 - Google Patents
一种用于线圈骨架的无卤阻燃聚丙烯复合材料料及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种用于线圈骨架的无卤阻燃聚丙烯复合材料料,包括以下按重量份数计量的原料:聚丙烯树脂80~95份、复合阻燃剂5~10份、β成核剂母粒1~5份及白矿油0.1~0.3份。该无卤阻燃聚丙烯复合材料还包括按重量份数计量的抗氧剂0.2~1份和润滑剂0.2~0.5份。本发明采用的β成核剂无填充,使得复合材料具有很轻的密度,很大程度上降低了成本,同时还具有更稳定更精密的尺寸,提高了热变形温度,更大程度上保证了线圈骨架在应用过程中的安全系数。采用复配阻燃剂改性后,使得复合材料的阻燃性能更好,且更加环保,符合社会的发展,能够更好的满足客户的安全健康需求。
Description
技术领域
本发明涉及高分子技术领域,尤其涉及一种用于线圈骨架的无卤阻燃聚丙烯复合材料料,本发明还涉及该无卤阻燃聚丙烯复合材料的制备方法。
背景技术
聚丙烯作为通用塑料之一,是无毒、无臭、无味的乳白色高结晶的聚合物,密度只有0.90~0.91g/cm3,具有良好的耐热性能,在不受外力的作用下可经受150℃的热处理;化学性能稳定,一般的酸碱或有机溶剂对其都不会造成影响,其优异的性能已应用于各行各业。聚丙烯具有较高的介电系数,可用来制作受热的电器绝缘制品。此外,聚丙烯的击穿电压也很高,适合用作电器配件等。
线圈骨架用于缠绕线圈,起到支撑线圈的作用。在注塑线圈骨架时,容易出现线圈骨架表面不光滑甚至出现毛刺,导致绕线时挂住漆包线而断线。线圈骨架缠绕铜线时基本采用自动或半自动方式,绕线中,若线圈的外涨力超出骨架的刚性,线圈骨架会出现变形或不宜察觉的微裂纹,用户使用时易导致电击穿而引发事故。圈骨架工作在大电流下时,会产生一定的热量,若周边散热性差的话,易积蓄高温,一些耐热性能差的线圈骨架,会在高温下变形,从而影响其电气性能,甚而引发事故,同时积蓄的热量,存在火灾的隐患。
因此,基于线圈骨架存在的以上问题,对其原料提出很多方面的要求。目前市场上主要应用于线圈骨架的原材料有尼龙,但由于尼龙本身成本太高,密度大,且较大的吸湿性大导致其存在安全隐患。为了迎合家电厂商以及消费者的需求,新产品应运而生,聚丙烯集众优点于一身,通过玻纤增强的阻燃聚丙烯得到了广泛的推广与应用。但是,线圈骨架其特殊的应用环境,要求线圈的表面具有一定的光滑性,不能有毛刺,有一定的韧性,不能在绕线后撑裂,以及国家相关法律法规对阻燃材料提出环保的要求,另外出于密度和成本的考虑,研究新一代的线圈骨架材料很有必要。
发明内容
本发明的目的在于为克服现有技术的不足及存在的问题,提出一种用于线圈骨架的无卤阻燃聚丙烯复合材料料,该无卤阻燃聚丙烯复合材料密度低、耐热性能好、韧性好,且同时还兼具足够的刚性。
为了解决现有技术问题,本发明通过以下技术方案实现:
一种用于线圈骨架的无卤阻燃聚丙烯复合材料料,包括以下按重量份数计量的原料:聚丙烯树脂80~95份、复合阻燃剂5~10份、β成核剂母粒1~5份及白矿油0.1~0.3份。
所述无卤阻燃聚丙烯复合材料还包括按重量份数计量的抗氧剂0.2~1份和润滑剂0.2~0.5份。
所述聚丙烯树脂为熔融指数在1~10g/10min之间的均聚聚丙烯树脂,其相对分子量分布宽度在10以内。
所述复配阻燃剂由含磷阻燃剂、含氮阻燃剂或含磷氮阻燃剂分别与协效阻燃剂复配得到,且含磷阻燃剂、含氮阻燃剂或磷氮阻燃剂与协效阻燃剂的质量比为2:1。
所述β成核剂母粒为TMB-5、NAB-83或NB-328与聚丙烯树脂混合抽粒而成。
所述抗氧剂为抗氧剂B215、抗氧剂1010、抗氧剂1076、抗氧剂1098和抗氧剂168中的任一种或几种的组合。
所述润滑剂为聚乙烯蜡、硬脂酸钙、硬脂酸锌和N,N'-乙撑双硬脂酰中的任一种或几种的组合。
本发明的另一个目的在于提出一种用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备方法,该制备方法包括以下步骤:
1)β成核剂母粒的制备:将100份的聚丙烯树脂、10份的β成核剂、0.3份的EBS和0.3份的B215置于高速搅拌机中混合5~10min,然后将混合物投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀;
2)用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备:称取配方量原料,先将聚丙烯树脂、β成核剂母粒和白矿油置于高速混合机中搅拌2~4min,然后加入复配阻燃剂、抗氧剂和润滑剂,混合搅拌5~10min,再投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀,得到用于线圈骨架的无卤阻燃聚丙烯复合材料料。
所述熔融挤出过程中熔体的温度为180~200℃。
所述双螺杆挤出机的加工温度为190~210℃、转速为200~500rmp。
本发明采用的β成核剂无填充,使得复合材料具有很轻的密度,很大程度上降低了成本,同时还具有更稳定更精密的尺寸,提高了热变形温度,更大程度上保证了线圈骨架矮应用过程中的安全系数。采用复配阻燃剂改性后,使得复合材料的阻燃性能更好,且更加环保,符合社会的发展,能够更好的满足客户的安全健康需求。
此外,本发明无卤阻燃聚丙烯复合材料还具有良好的耐热性能和韧性好,且同时还兼具足够的刚性。可用于线圈骨架的制备,制品表面光滑,没有毛刺,韧性好,绕线后不容易撑裂。
具体实施方式
本发明揭示了一种用于线圈骨架的无卤阻燃聚丙烯复合材料料,包括以下按重量份数计量的原料:聚丙烯树脂80~95份、复合阻燃剂5~10份、β成核剂母粒1~5份及白矿油0.1~0.3份。
为了提高复合材料的抗氧性能及良好的光滑性,所述无卤阻燃聚丙烯复合材料还包括按重量份数计量的抗氧剂0.2~1份和润滑剂0.2~0.5份。所述抗氧剂为抗氧剂B215、抗氧剂1010、抗氧剂1076、抗氧剂1098和抗氧剂168中的任一种或几种的组合。润滑剂为聚乙烯蜡、硬脂酸钙、硬脂酸锌和N,N'-乙撑双硬脂酰中的任一种或几种的组合。
本发明中聚丙烯树脂为熔融指数在1~10g/10min之间的均聚聚丙烯树脂,其相对分子量分布宽度在10以内,优选熔融指数在2~4g/10min之间的均聚聚丙烯树脂,且其相对分子量分布宽度在10以内,具体地,聚丙烯树脂为T30S、2832E1、F280T和S1005中的任一种。
本发明中复配阻燃剂由含磷阻燃剂、含氮阻燃剂或含磷氮阻燃剂分别与协效阻燃剂复配得到,且含磷阻燃剂、含氮阻燃剂或含磷氮阻燃剂与协效阻燃剂的质量比为2:1。所述的含磷阻燃剂、含氮阻燃剂、含磷氮阻燃剂及协效阻燃剂均为本领域技术人员所熟知的产品,并无特殊限制,且可由市购得到。需说明的是,以下实施例中所使用的复配阻燃剂为含磷阻燃剂与协效阻燃剂按质量比为2:1复配得到,或含氮阻燃剂与协效阻燃剂按质量比为2:1复配得到,或含磷氮阻燃剂与协效阻燃剂按质量比为2:1复配得到。
本发明中β成核剂母粒为TMB-5、NAB-83或NB-328与聚丙烯树脂混合抽粒而成。所述TMB-5、NAB-83及NB-328均为现有产品,可由市购得到。具体地,β成核剂母粒是由聚丙烯树脂、β成核剂、EBS和B215按重量份数依次为100份、10份、0.3份及0.3份置于高速搅拌机中混合5~10min,然后将混合物投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀得到。
本发明一种用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备方法,该制备方法包括以下步骤:
1)β成核剂母粒的制备:将100份的聚丙烯树脂、10份的β成核剂、0.3份的EBS和0.3份的B215置于高速搅拌机中混合5~10min,然后将混合物投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀;
2)用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备:称取配方量原料,先将聚丙烯树脂、β成核剂母粒和白矿油置于高速混合机中搅拌2~4min,然后加入复配阻燃剂、抗氧剂和润滑剂,混合搅拌5~10min,再投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀,得到用于线圈骨架的无卤阻燃聚丙烯复合材料料。
所述熔融挤出过程中熔体的温度为180~200℃。
所述双螺杆挤出机的加工温度为190~210℃、转速为200~500rmp。
为了本领域技术人员的理解,以下通过具体实施例对本发明作进一步详细的描述。
实施例1
一种用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备方法,该制备方法包括以下步骤:
1)β成核剂母粒的制备:将100份的聚丙烯树脂、10份的TMB-5、0.3份的N,N'-乙撑双硬脂酰和0.3份的抗氧剂B215置于高速搅拌机中混合5min,然后将混合物投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀;
2)用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备:称取聚丙烯树脂T30S 80份、β成核剂母粒 1份和白矿油 0.1份置于高速混合机中搅拌2min,然后加入复配阻燃剂 5份、抗氧剂B215 0.2份和聚乙烯蜡 0.2份,混合搅拌5min,再投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀,得到用于线圈骨架的无卤阻燃聚丙烯复合材料料。
实施例2
一种用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备方法,该制备方法包括以下步骤:
1)β成核剂母粒的制备:将100份的聚丙烯树脂、10份的NAB-83、0.3份的N,N'-乙撑双硬脂酰和0.3份的抗氧剂B215置于高速搅拌机中混合7min,然后将混合物投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀;
2)用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备:称取2832E1 85份、β成核剂母粒 3份和白矿油 0.2份置于高速混合机中搅拌3min,然后加入复配阻燃剂 7份、抗氧剂1010 0.5份和硬脂酸钙 0.4份,混合搅拌7min,再投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀,得到用于线圈骨架的无卤阻燃聚丙烯复合材料料。
实施例3
一种用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备方法,该制备方法包括以下步骤:
1)β成核剂母粒的制备:将100份的聚丙烯树脂、10份的NAB-83、0.3份的N,N'-乙撑双硬脂酰和0.3份的抗氧剂B215置于高速搅拌机中混合10min,然后将混合物投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀;
2)用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备:称取将F280T 90份、β成核剂母粒 4份和白矿油 0.3份置于高速混合机中搅拌3min,然后加入复配阻燃剂 8份、抗氧剂168 0.7份和硬脂酸锌和N 0.4份,混合搅拌8min,再投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀,得到用于线圈骨架的无卤阻燃聚丙烯复合材料料。
实施例4
一种用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备方法,该制备方法包括以下步骤:
1)β成核剂母粒的制备:将100份的聚丙烯树脂、10份的NB-328、0.3份的N,N'-乙撑双硬脂酰和0.3份的抗氧剂B215置于高速搅拌机中混合7min,然后将混合物投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀;
2)用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备:称取S1005 95份、β成核剂母粒 5份和白矿油 0.3份置于高速混合机中搅拌4min,然后加入复配阻燃剂 10份、抗氧剂1076 1份和润滑剂N,N'-乙撑双硬脂酰 0.5份,混合搅拌10min,再投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀,得到用于线圈骨架的无卤阻燃聚丙烯复合材料料。
上述实施例1~4中熔融挤出过程中熔体的温度为180~200℃,双螺杆挤出机的加工温度为190~210℃,转速为200~500rmp。
将上述实施例所得的复合材料注塑成标准样条,按以下方法对材料的性能进行测试:
1)灼热丝:按IEC 60695-2-13 GWIT:775/3.0标准进行测试;
2)灼热丝:按IEC 60695-2-12 GWFI:960/3.0标准进行测试;
3)球压:按照IEC 60695-10-2:2003标准进行测试;
4)热变形温度:按ASTM D648 0.45MPa标准进行测试;
5)缺口冲击:按ASTM D256标准进行测试;
6)阻燃性能:按UL94垂直燃烧测试标准进行测试。测试结果如表1所示:
表1 实施例1-4的测试结果。
从试验数据可以看出,本发明所制备的材料的耐热性能和悬梁臂缺口冲击强度均能满足线圈骨架的要求。
根据以上说明书中的阐述,本发明所属领域的技术人员还可以对上述实施方式进行适当的变更和修改。因此,上述实施例中提到的内容并非是对本发明的限定,在不脱离本发明的发明构思的前提下,任何显而易见的替换均在本发明的保护范围之内。
Claims (10)
1.一种用于线圈骨架的无卤阻燃聚丙烯复合材料,包括以下按重量份数计量的原料:聚丙烯树脂80~95份、复合阻燃剂5~10份、β成核剂母粒1~5份及白矿油0.1~0.3份。
2.根据权利要求1所述的用于线圈骨架的无卤阻燃聚丙烯复合材料料,其特征在于:所述无卤阻燃聚丙烯复合材料还包括按重量份数计量的抗氧剂0.2~1份和润滑剂0.2~0.5份。
3.根据权利要求2所述的用于线圈骨架的无卤阻燃聚丙烯复合材料料,其特征在于:所述聚丙烯树脂为熔融指数在1~10g/10min之间的均聚聚丙烯树脂,其相对分子量分布宽度在10以内。
4.根据权利要求2所述的用于线圈骨架的无卤阻燃聚丙烯复合材料料,其特征在于:所述复配阻燃剂由含磷阻燃剂、含氮阻燃剂或含磷氮阻燃剂分别与协效阻燃剂复配得到,且含磷阻燃剂、含氮阻燃剂或磷氮阻燃剂与协效阻燃剂的质量比为2:1。
5.根据权利要求2所述的用于线圈骨架的无卤阻燃聚丙烯复合材料料,其特征在于:所述β成核剂母粒为TMB-5、NAB-83或NB-328与聚丙烯树脂混合抽粒而成。
6.根据权利要求2所述的用于线圈骨架的无卤阻燃聚丙烯复合材料料,其特征在于:所述抗氧剂为抗氧剂B215、抗氧剂1010、抗氧剂1076、抗氧剂1098和抗氧剂168中的任一种或几种的组合。
7.根据权利要求2所述的用于线圈骨架的无卤阻燃聚丙烯复合材料料,其特征在于:所述润滑剂为聚乙烯蜡、硬脂酸钙、硬脂酸锌和N,N'-乙撑双硬脂酰中的任一种或几种的组合。
8.一种根据权利要求1~7中任一项所述的用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备方法,该制备方法包括以下步骤:
1)β成核剂母粒的制备:将100份的聚丙烯树脂、10份的β成核剂、0.3份的EBS和0.3份的B215置于高速搅拌机中混合5~10min,然后将混合物投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀;
2)用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备:称取配方量原料,先将聚丙烯树脂、β成核剂母粒和白矿油置于高速混合机中搅拌2~4min,然后加入复配阻燃剂、抗氧剂和润滑剂,混合搅拌5~10min,再投入到双螺杆挤出机中进行熔融挤出造粒并混合均匀,得到用于线圈骨架的无卤阻燃聚丙烯复合材料料。
9.根据权利要求8所述的用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备方法,其特征在于:所述熔融挤出过程中熔体的温度为180~200℃。
10.根据权利要求8所述的用于线圈骨架的无卤阻燃聚丙烯复合材料料的制备方法,其特征在于:所述双螺杆挤出机的加工温度为190~210℃、转速为200~500rmp。
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