CN110256741A - 相变储热橡胶、制备方法及其应用 - Google Patents
相变储热橡胶、制备方法及其应用 Download PDFInfo
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Abstract
相变储热橡胶,包括以下重量份的各组份:橡胶20~70份和改性相变粉体10~68份,含有适量的改性相变粉体,因而具备了优异的吸热和储热性能,相变焓达到15‑200J/g,比热容超过了2.0J/g·K,满足了电池和电容对吸热和储热性能的需求,改性相变粉体具有吸热储能功能,由于相变焓值大,升温慢,橡胶就可以吸收更多的热量,相变粉体经过改性剂改性,改性剂是大比表面积、含有微孔的粉体,与其混合之后,增加了比表面积,粉体含有大量的微孔,相变粉体进入微孔内被牢固地锁住,使其在高温条件下,不会从微孔中游离出来,其储热的稳定性和持续性是市场上同类产品的4‑5倍,即便长时间使用,储热性能下降不超过2‑3%。
Description
技术领域
本发明涉及储热橡胶及其制备方法技术领域,尤其涉及相变储热橡胶、制备方法及其应用。
背景技术
随着电子产品的小型化和轻量化,就要求其大大提高集成度,集成度越高,散热问题也愈发严重。所以,为了防止具备热量积聚形成热点,就需要迅速将热点的热量转移或者存储起来,由于产品小型化之后,内部空间愈发狭小,通常采用导热材料把热量转移的橡胶外壳,而目前的橡胶外壳不具备储热功能,很快就达到热量饱和,无法实现热量的持续转移和存储;
比如,大容量的锂电池组由众多经串并联组合连接在一起的锂电池单体构成,锂电池组在充电放电过程中会产生大量的热能,如何把这些热能尽快的传导到橡胶外壳,使锂电池迅速降低温度;
同样,电容长时间工作容易产生大量,电容越多,发热越厉害,如何把这些热能尽快的传导到橡胶外壳,也是行业中亟需解决点难题。
为了解决上述问题,现有技术中在橡胶中加入相变材料,然而,相变材料在高温下会发生漏液现象,相变材料从基体中游离出来,一方面会导致后续的混合搅拌成型的难度提高,另一方面,相变材料游离出来后,会使得相变储热橡胶的性能大幅度下降,影响其储热性能。
因此,急需提供一种相变储热橡胶、制备方法以及应用,以解决现有技术的不足。
发明内容
本发明的目的之一是提供一种相变储热橡胶,以解决现有技术的不足。
本发明的另一目的在于提供上述相变储热橡胶的制备方法。
本发明的又一目的在于提供上述相变储热橡胶的应用。
为实现上述目的,本发明采用如下的技术方案:
相变储热橡胶,包括以下重量份的各组份,橡胶20~60份和改性相变粉体10~68份,所述改性相变粉体的制备方法如下:将相变粉体加热熔化,然后在熔化的相变粉体中添加改性剂,添加量重量比为相变粉体的2%~40%,混合后粉体在水浴或油浴中保温,然后用振动筛振动,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
优选地,所述橡胶选自NBR、EPDM、硅橡胶、NR和CR中的任意一种或者几种的组合。
优选地,所述相变粉体选自烷烃蜡、脂肪酸、PE蜡和聚乙二醇中的任意一种或者几种的组合。
优选地,所述改性剂选自膨胀石墨、纳米二氧化硅微粉和中空微球粉体中的任意一种或者几种的组合。
优选地,还包括阻燃剂10~50份,所述阻燃剂选自磷系阻燃剂、氮系阻燃剂和氢氧化铝中的任意一种或者几种的组合。
优选地,还包括导热粉体1~20份,所述导热粉体选自氧化铝、氮化硼和氮化铝、石墨中的任意一种或者几种的组合。
优选地,还包括石墨、碳纳米管和/或石墨烯1~20份。
优选地,所述烷烃蜡的烷烃碳原子数介于10-60之间。
相变储热橡胶的制备方法,包括以下步骤,按照配方称取各组份,
步骤1、混合密炼:将橡胶和改性相变粉体混合密炼0.5~3h;
步骤2、挤出或模压成型获得相变储热橡胶。
相变储热橡胶的应用,所述的相变储热橡胶可以用于电池和电容。
与现有技术相比,本发明的相变储热橡胶具有以下有益效果:本发明的相变储热橡胶,含有适量的改性相变粉体,相变焓达到15-200J/g,比热容超过了2.0J/g·K,满足了电池和电容对吸热和储热性能的需求,改性相变粉体具有吸热储能功能,由于相变焓值大,升温慢,橡胶就可以吸收更多的热量,把电池和电容中的发热点产生的热量迅速转移到相变储热橡胶内,使得发热点降温更快,可以很好地解决电池和电容领域发热的技术难题;相变粉体经过改性剂改性,改性剂是大比表面积、含有微孔的粉体,与其混合之后,增加了比表面积,粉体含有大量的微孔,相变粉体进入微孔内被牢固地锁住,使其在高温条件下,不会从微孔中游离出来,解决了相变储热橡胶出油的问题,不仅仅提高了后面成型工艺的可操作性,更重要的是,可以大大保证其在高温条件下,长时间保持储热性能的稳定,与同类产品相变,其储热的稳定性和持续性是市场上同类产品的4-5倍,即便长时间使用,储热性能下降不超过2-3%。
具体实施方式
下面结合实施例对本发明作进一步的说明,这是本发明的较佳实施例。
实施例1
相变储热橡胶,包括以下重量份的各组份:NBR橡胶20份和改性相变粉体10份;
所述改性相变粉体的制备方法如下:将石蜡加热熔化,然后在熔化的石蜡中添加膨胀石墨,添加量重量比为石蜡的2%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例2
相变储热橡胶,包括以下重量份的各组份:NBR橡胶70份和改性相变粉体10份;
所述改性相变粉体的制备方法如下:将60碳原子烷烃蜡加热熔化,然后在熔化的60碳原子烷烃蜡中添加纳米二氧化硅微粉,添加量重量比为60碳原子烷烃蜡的40%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例3
相变储热橡胶,包括以下重量份的各组份:NBR橡胶40份和改性相变粉体50份;
所述改性相变粉体的制备方法如下:将脂肪酸加热熔化,然后在熔化的脂肪酸中添加中空微球粉体,添加量重量比为脂肪酸的20%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例4
相变储热橡胶,包括以下重量份的各组份:EPDM橡胶60份和改性相变粉体50份;
所述改性相变粉体的制备方法如下:将PE蜡加热熔化,然后在熔化的PE蜡中添加纳米二氧化硅微粉,添加量重量比为PE蜡的10%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例5
相变储热橡胶,包括以下重量份的各组份:硅橡胶40份和改性相变粉体30份;
所述改性相变粉体的制备方法如下:将聚乙二醇加热熔化,然后在熔化的聚乙二醇中添加膨胀石墨,添加量重量比为聚乙二醇的5%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例6
相变储热橡胶,包括以下重量份的各组份:硅橡胶40份、改性相变粉体30份,氮系阻燃剂10份;
所述改性相变粉体的制备方法如下:将石蜡加热熔化,然后在熔化的石蜡中添加纳米二氧化硅微粉,添加量重量比为石蜡的12%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例7
相变储热橡胶,包括以下重量份的各组份:硅橡胶40份、改性相变粉体20份,氮系阻燃剂10份;
所述改性相变粉体的制备方法如下:将10碳原子烷烃蜡加热熔化,然后在熔化的10碳原子烷烃蜡中添加中空微球粉体,添加量重量比为10碳原子烷烃蜡的40%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例8
相变储热橡胶,包括以下重量份的各组份:硅橡胶40份、改性相变粉体30份,氮系阻燃剂10份;
所述改性相变粉体的制备方法如下:将脂肪酸加热熔化,然后在熔化的脂肪酸中添加纳米二氧化硅微粉,添加量重量比为脂肪酸的16%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例9
相变储热橡胶,包括以下重量份的各组份:NR橡胶30份、改性相变粉体20份,磷系阻燃剂20份;
所述改性相变粉体的制备方法如下:将石蜡加热熔化,然后在熔化的石蜡中添加纳米二氧化硅微粉,添加量重量比为石蜡的22%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例10
相变储热橡胶,包括以下重量份的各组份:NR橡胶30份、改性相变粉体20份,磷系阻燃剂20份;
所述改性相变粉体的制备方法如下:将60碳原子烷烃蜡加热熔化,然后在熔化的60碳原子烷烃蜡中添加中空微球粉体,添加量重量比为60碳原子烷烃蜡的6%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例11
相变储热橡胶,包括以下重量份的各组份:NR橡胶30、改性相变粉体20份,磷系阻燃剂20份;
所述改性相变粉体的制备方法如下:将脂肪酸加热熔化,然后在熔化的脂肪酸中添加纳米二氧化硅微粉,添加量重量比为脂肪酸的40%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例12
相变储热橡胶,包括以下重量份的各组份:NR橡胶38、改性相变粉体25份,氢氧化铝18份;
所述改性相变粉体的制备方法如下:将PE蜡加热熔化,然后在熔化的PE蜡中添加纳米膨胀石墨,添加量重量比为PE蜡的30%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例13
相变储热橡胶,包括以下重量份的各组份:NBR橡胶25份、改性相变粉体12份,氢氧化铝12份,石墨4份;
所述改性相变粉体的制备方法如下:将石蜡加热熔化,然后在熔化的石蜡中添加纳米二氧化硅微粉,添加量重量比为石蜡的28%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例14
相变储热橡胶,包括以下重量份的各组份:NBR橡胶25份、改性相变粉体12份,氢氧化铝12份,石墨4份;
所述改性相变粉体的制备方法如下:将30碳原子烷烃蜡加热熔化,然后在熔化的30碳原子烷烃蜡中添加纳米二氧化硅微粉,添加量重量比为30碳原子烷烃蜡的38%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例15
相变储热橡胶,包括以下重量份的各组份:NBR橡胶25份、改性相变粉体12份,氢氧化铝12份,石墨4份;
所述改性相变粉体的制备方法如下:将脂肪酸加热熔化,然后在熔化的脂肪酸中添加纳米二氧化硅微粉,添加量重量比为脂肪酸的18%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例16
相变储热橡胶,包括以下重量份的各组份:NBR橡胶35份、改性相变粉体15份,氢氧化铝15份,氮化硼8份;
所述改性相变粉体的制备方法如下:将石蜡加热熔化,然后在熔化的石蜡中添加膨胀石墨,添加量重量比为石蜡的8%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例17
相变储热橡胶,包括以下重量份的各组份:NBR橡胶35份、改性相变粉体15份,氢氧化铝15份,氮化硼8份;
所述改性相变粉体的制备方法如下:将20碳原子烷烃蜡加热熔化,然后在熔化的20碳原子烷烃蜡中添加中空微球粉体,添加量重量比为20碳原子烷烃蜡的18%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例18
相变储热橡胶,包括以下重量份的各组份:NBR橡胶35份、改性相变粉体15份,氢氧化铝15份,氮化硼8份;
所述改性相变粉体的制备方法如下:将脂肪酸加热熔化,然后在熔化的脂肪酸中添加纳米二氧化硅微粉,添加量重量比为脂肪酸的30%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例19
相变储热橡胶,包括以下重量份的各组份:硅橡胶40份、改性相变粉体30份,磷系阻燃剂10份、碳纳米管18份;
所述改性相变粉体的制备方法如下:将石蜡加热熔化,然后在熔化的石蜡中添加中空微球粉体,添加量重量比为石蜡的28%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例20
相变储热橡胶,包括以下重量份的各组份:硅橡胶40份、改性相变粉体30份,磷系阻燃剂10份、碳纳米管18份;
所述改性相变粉体的制备方法如下:将20碳原子烷烃蜡加热熔化,然后在熔化的20碳原子烷烃蜡中添加纳米二氧化硅微粉,添加量重量比为20碳原子烷烃蜡的36%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例21
相变储热橡胶,包括以下重量份的各组份:硅橡胶40份、改性相变粉体30份,磷系阻燃剂10份、碳纳米管18份;
所述改性相变粉体的制备方法如下:将脂肪酸加热熔化,然后在熔化的脂肪酸中添加膨胀石墨,添加量重量比为脂肪酸的12%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例22
相变储热橡胶,包括以下重量份的各组份:硅橡胶55份、改性相变粉体33份,氢氧化铝15份、氮化硼8份;
所述改性相变粉体的制备方法如下:将石蜡加热熔化,然后在熔化的石蜡中添加中空微球粉体,添加量重量比为石蜡的35%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例23
相变储热橡胶,包括以下重量份的各组份:硅橡胶55份、改性相变粉体33份,氢氧化铝15份、氮化硼8份;
所述改性相变粉体的制备方法如下:将20碳原子烷烃蜡加热熔化,然后在熔化的20碳原子烷烃蜡中添加纳米二氧化硅微粉,添加量重量比为20碳原子烷烃蜡的16%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例24
相变储热橡胶,包括以下重量份的各组份:硅橡胶55份、改性相变粉体33份,氢氧化铝15份、氮化硼8份。
所述改性相变粉体的制备方法如下:将脂肪酸加热熔化,然后在熔化的脂肪酸中添加膨胀石墨,添加量重量比为脂肪酸的5%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例25
相变储热橡胶,包括以下重量份的各组份:EPDM橡胶25份、改性相变粉体12份,氢氧化铝12份,石墨4份;
所述改性相变粉体的制备方法如下:将石蜡加热熔化,然后在熔化的石蜡中添加中空微球粉体,添加量重量比为石蜡的25%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例26
相变储热橡胶,包括以下重量份的各组份:EPDM橡胶25份、改性相变粉体12份,氢氧化铝12份,石墨4份;
所述改性相变粉体的制备方法如下:将20碳原子烷烃蜡加热熔化,然后在熔化的20碳原子烷烃蜡中添加纳米二氧化硅微粉,添加量重量比为20碳原子烷烃蜡的8%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例27
相变储热橡胶,包括以下重量份的各组份:EPDM橡胶25份、改性相变粉体12份,氢氧化铝12份,石墨4份;
所述改性相变粉体的制备方法如下:将脂肪酸加热熔化,然后在熔化的脂肪酸中添加膨胀石墨,添加量重量比为脂肪酸的15%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例28
相变储热橡胶,包括以下重量份的各组份:EPDM橡胶60份、改性相变粉体40份,氢氧化铝30份,氧化铝20份;
所述改性相变粉体的制备方法如下:将石蜡加热熔化,然后在熔化的石蜡中添加中空微球粉体,添加量重量比为石蜡的22%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例29
相变储热橡胶,包括以下重量份的各组份:EPDM橡胶60份、改性相变粉体40份,氢氧化铝30份,氧化铝20份;
所述改性相变粉体的制备方法如下:将20碳原子烷烃蜡加热熔化,然后在熔化的20碳原子烷烃蜡中添加纳米二氧化硅微粉,添加量重量比为20碳原子烷烃蜡的8%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例30
相变储热橡胶,包括以下重量份的各组份:EPDM橡胶60份、改性相变粉体40份,氢氧化铝30份,氧化铝20份;
所述改性相变粉体的制备方法如下:将脂肪酸加热熔化,然后在熔化的脂肪酸中添加膨胀石墨,添加量重量比为脂肪酸的6%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例31
相变储热橡胶,包括以下重量份的各组份:NR橡胶50份、改性相变粉体30份,氢氧化铝20份,氧化铝10份;
所述改性相变粉体的制备方法如下:将PE蜡加热熔化,然后在熔化的PE蜡中添加纳米二氧化硅微粉,添加量重量比为PE蜡的10%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例32
相变储热橡胶,包括以下重量份的各组份:NR橡胶40份、改性相变粉体20份,氢氧化铝20份,碳纳米管15份;
所述改性相变粉体的制备方法如下:将聚乙二醇加热熔化,然后在熔化的聚乙二醇中添加纳米膨胀石墨,添加量重量比为聚乙二醇的16%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例33
相变储热橡胶,包括以下重量份的各组份:CR橡胶55份、聚乙二醇45份,氢氧化铝22份,石墨15份;
所述改性相变粉体的制备方法如下:将聚乙二醇加热熔化,然后在熔化的聚乙二醇中添加纳米膨胀石墨,添加量重量比为聚乙二醇的36%,混合后粉体在水浴或油浴中保温,然后用振动筛振动4h以上,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
实施例34
相变储热橡胶的制备方法,包括以下步骤,按照配方称取各组份,
步骤1、混合密炼:将橡胶和改性相变粉体混合密炼0.5~3h;
步骤2、挤出或模压成型获得相变储热橡胶。
实施例35
实施例1-33所述的相变储热橡胶的应用,所述的相变储热橡胶可以用于电池和电容。
实施例1-12所述的相变储热橡胶的应用于电池领域进行了性能测试,各项指标测试结果如表1所示,在相同环境温度下测试性能如下(0.1mm):
表1
实施例13-33所述的相变储热橡胶的应用于电池领域进行了性能测试,各项指标测试结果如表2所示,在相同环境温度下测试性能如下(0.1mm):
表2
应用实施例1-10的相变储热橡胶,应用于电芯,与无相变橡胶应用于电芯,30A放电1500mAH,放电时间约90min,进行测试对比,结果如3所示:
表3
上述电芯测试结果看出,相变材料可显著降低电芯工作时温度,降温平均可达到13℃左右;
由表1-表3的数据可知,本发明的相变储热橡胶的相变焓(J/g)约15~200,吸热值高;相变温度(℃)28~85;比热容(J/(g·K))≥2.0;比重(g/cc)达到了0.9~1.6,而当改性相变粉体的添加量增加时,比热容、相变焓也随之增大,具有更高的相变焓及更大的比热容,吸热和储热性能也更加优异,以此可以说明,改性相变粉体的搭配应用,使得橡胶具有了令人惊讶的吸热焓与比热容,而且其它各项性能指标也随之增强,具有意想不到的增强效果,经过测试发现,随着改性相变粉体加入量的增加,比热容也随之增大,但是当改性相变粉体加入的量过大时,橡胶成型困难,而且机械性能也随之降低,因此,改性相变粉体的比例最好不超过橡胶的重量份数。
最后应当说明的是,以上实施例仅用以说明本发明的技术方案,而非对本发明保护范围的限制,尽管参照较佳实施例对本发明作了详细地说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的实质和范围。
Claims (10)
1.相变储热橡胶,其特征在于,包括以下重量份的各组份:
橡胶20~70份和改性相变粉体10~68份,所述改性相变粉体的制备方法如下:将相变粉体加热熔化,然后在熔化的相变粉体中添加改性剂,添加量重量比为相变粉体的2%~40%,混合后粉体在水浴或油浴中保温,然后用振动筛振动,接着用吸油纸吸油,再用球磨机或砂磨机研磨粉体,获得所述的改性相变粉体。
2.根据权利要求1所述的相变储热橡胶,其特征在于:所述橡胶选自NBR、EPDM、硅橡胶、NR和CR中的任意一种或者几种的组合。
3.根据权利要求1所述的相变储热橡胶,其特征在于:所述相变粉体选自烷烃蜡、脂肪酸、PE蜡和聚乙二醇中的任意一种或者几种的组合。
4.根据权利要求1所述的相变储热橡胶,其特征在于:所述改性剂选自膨胀石墨、纳米二氧化硅微粉和中空微球粉体中的任意一种或者几种的组合。
5.根据权利要求4任一项所述的相变储热橡胶,其特征在于:还包括阻燃剂10~50份,所述阻燃剂选自磷系阻燃剂、氮系阻燃剂和氢氧化铝中的任意一种或者几种的组合。
6.根据权利要求5所述的相变储热橡胶,其特征在于,还包括导热粉体1~20份,所述导热粉体选自氧化铝、氮化硼和氮化铝、石墨中的任意一种或者几种的组合。
7.根据权利要求5所述的相变储热橡胶,其特征在于,还包括石墨、碳纳米管和/或石墨烯1~30份。
8.根据权利要求3所述的相变储热橡胶,其特征在于:所述烷烃蜡的烷烃碳原子数介于10-60之间。
9.根据权利要求1所述的相变储热橡胶的制备方法,其特征在于,包括以下步骤,按照配方称取各组份,
步骤1、混合密炼:将橡胶和改性相变粉体混合密炼0.5~3h;
步骤2、挤出或模压成型获得相变储热橡胶。
10.根据权利要求1-8任一项所述的相变储热橡胶的应用,其特征在于,所述的相变储热橡胶可以用于电池和电容。
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Effective date of registration: 20190909 Address after: 464432 Suntai Formation, Wamen Village, Zhangzhuang Township, Huaibin County, Xinyang City, Henan Province Applicant after: Zhang Liqiang Address before: 516100 Jinding Ling, Tangquan Forest Farm, Luoyang Town, Boluo County, Huizhou City, Guangdong Province Applicant before: KINGBALI NEW MATERIAL (HUIZHOU) Co.,Ltd. |
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