CN114437638A - 一种红外屏蔽型eva热熔胶膜及其制备方法 - Google Patents
一种红外屏蔽型eva热熔胶膜及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种红外屏蔽型EVA热熔胶膜及其制备方法,该热熔胶膜包括EVA主体树脂60份‑80份;红外线屏蔽剂10份‑30份;散热剂5份‑10份;硅烷偶联剂8份‑15份;助溶剂2份‑6份;无机阻燃剂0.1份‑1份;增粘剂3份‑10份;引发剂0.1份‑1份;抗氧化剂0.01份‑1份。上述热熔胶膜通过红外线屏蔽剂的作用,将红外线屏蔽或者吸收,将光能转为热能,再通过散热剂的作用,将热量隔在表面,提高红外线的屏蔽防护;通过无机阻燃剂的作用,提高产品的阻燃性能;通过硅烷偶联剂的作用,使硅烷偶联剂介于EVA主体树脂与红外线屏蔽剂之间,形成有机基体‑硅烷偶联剂‑无机基体的结合层,提高各物料的相容性。
Description
技术领域
本发明涉及EVA热熔胶技术领域,尤其涉及一种红外屏蔽型EVA热熔胶膜及其制备方法。
背景技术
EVA热熔胶是以乙烯-醋酸乙烯热塑性聚合物为主体材料,与增粘剂、蜡类、增塑剂、抗氧剂、填料等其它高分子材料通过熔融共混合成的新型合成胶粘剂。它运输安全贮存便利,耗能较低,操作简易,利用加热的方法使胶粘剂软化熔融处于流态对粘接界面进行涂布,在脱离热源的很短时间内借冷却固化即实现粘接。
自然界的红外线辐射源以太阳为最强,但在生产环境中,主要以熔炉、熔融态金属和玻璃、强红外线光源、烘烤和加热设备等为主的红外线辐射源,一些特殊职业从事上述的工作,容易接触到红外线,因此,特殊职业工作者长期接触红外线需要对红外线进行屏蔽防护工作。
发明内容
为了克服现有技术的不足,本发明的目的之一提供一种红外屏蔽型EVA热熔胶膜,其通过将EVA热熔胶膜与纺织品复合,提高纺织品的红外线的屏蔽防护工作。
发明的目的之二提供一种红外屏蔽型EVA热熔胶膜的制备方法。
本发明的目的之一采用如下技术方案实现:
一种红外屏蔽型EVA热熔胶膜,包括如下重量份的组分:
EVA主体树脂60份-80份;红外线屏蔽剂10份-30份;散热剂5份-10份;硅烷偶联剂8份-15份;助溶剂2份-6份;无机阻燃剂0.1份-1份;增粘剂3份-10份;引发剂0.1份-1份;抗氧化剂0.01份-1份;其中,所述EVA主体树脂的的熔指为200g/10min-300g/10min。熔指较高的EVA主体树脂容易对各物料进行包裹,使其分散性能更好。
上述的红外屏蔽型EVA热熔胶膜通过红外线屏蔽剂的作用,将红外线屏蔽或者吸收,将光能转为热能,再通过散热剂的作用,将热量隔着在表面或快速散开,提高纺织品的红外线的屏蔽防护工作;通过无机阻燃剂的作用,提高产品的阻燃性能;通过硅烷偶联剂的作用,使硅烷偶联剂介于EVA主体树脂与红外线屏蔽剂、散热剂、无机阻燃剂之间,形成有机基体-硅烷偶联剂-无机基体的结合层,提高各物料的相容性,同时能够改善胶膜与纺织品材料的粘合性能,能够大大地提高EVA的耐高温性能。
优选地,所述红外线屏蔽剂为聚苯胺、硫化铜、芘酰亚胺中的一种或两种以上。
优选地,所述红外线屏蔽剂由质量比为1:(4-5)的硫化铜与聚苯胺或芘酰亚胺所组成,其中,所述硫化铜为硫化铜纳米颗粒、硫化铜纳米球中的一种或两种。聚苯胺能够对红外线吸收,将光能转化为热能,芘酰亚胺的阴离子自由基具有强烈的近红外吸收特点,硫化铜具有较好的红外线吸收效果,与聚苯胺或芘酰亚胺配合,形成有机和无机等两种红外线吸收功效。
优选地,所述散热剂为氧化石墨烯、石墨烯、碳纳米管中的一种或两种以上。进一步优选地,所述散热剂由质量比为1:2的石墨烯、碳纳米管组成,通过两者结合,形成横纵交错的散热体系。
优选地,所述硅烷偶联剂为乙烯基硅烷、氨基硅烷、甲基丙烯酰氧基硅烷中的一种或两种以上。
优选地,所述助溶剂为乙二醇单丁醚、丙二醇单丁醚、二乙二醇单丁醚、丁醇中的一种或两种以上。提高散热剂或者无机阻燃剂的分散性能。
优选地,所述无机阻燃剂为氢氧化镁、氢氧化铝中的一种或两种;所述增粘剂为松香树脂、碳五加氢石油树脂、萜烯树脂中的一种或者两种以上。
优选地,所述EVA主体树脂与所述红外线屏蔽剂、硅烷偶联剂的质量比为1:(0.2-0.4):(0.1-0.2)。进一步优选地,所述EVA主体树脂与所述红外线屏蔽剂、硅烷偶联剂的质量比为1:0.3:0.2。
优选地,所述引发剂为过氧化苯甲酰、过氧化二乙酰、过氧化苯甲酸叔丁酯、2,4-二氯过氧化苯甲酰、过氧化十二酰中的一种或者两种以上;所述抗氧剂为四[β-(3,5-二叔丁基-4-羟基苯基)丙酸]季戊四醇酯、三[2.4-二叔丁基苯基]亚磷酸酯、4,4'-硫代双(6-叔丁基-3-甲基苯酚)中的一种或者两种以上。
本发明的目的之二采用如下技术方案实现:
一种红外屏蔽型EVA热熔胶膜的制备方法,包括如下制备步骤:
S1:将EVA主体树脂、硅烷偶联剂、助溶剂、无机阻燃剂、引发剂、抗氧化剂和增粘剂加入到高速混合机中高速搅拌混合,边搅拌边加入红外线屏蔽剂和散热剂,混合均匀,得到混合物料;
S2:将混合物料投入螺杆挤出机中熔融挤出,经延流、冷却、牵引及收卷的步骤,得到红外屏蔽型EVA热熔胶膜。
优选地,该红外屏蔽型EVA热熔胶膜的制备方法包括如下制备步骤:
S1:将EVA主体树脂、硅烷偶联剂、助溶剂、无机阻燃剂、引发剂、抗氧化剂和增粘剂加入到高速混合机中高速搅拌混合,混合20min-40min后,边搅拌边加入红外线屏蔽剂和散热剂,混合均匀30min-40min,得到混合物料;
S2:将混合物料投入螺杆挤出机中在120℃-140℃下熔融挤出,经延流、冷却、牵引及收卷的步骤,得到红外屏蔽型EVA热熔胶膜。
相比现有技术,本发明的有益效果在于:
本发明的红外屏蔽型EVA热熔胶膜通过红外线屏蔽剂的作用,将红外线屏蔽或者吸收,将光能转为热能,再通过散热剂的作用,将热量隔在表面或快速散开,提高纺织品的红外线的屏蔽防护工作;通过无机阻燃剂的作用,提高产品的阻燃性能;通过硅烷偶联剂的作用,使硅烷偶联剂介于EVA主体树脂与红外线屏蔽剂、散热剂、无机阻燃剂之间,形成有机基体-硅烷偶联剂-无机基体的结合层,提高各物料的相容性,同时能够改善胶膜与纺织品材料的粘合性能,能够大大地提高EVA的耐高温性能。
具体实施方式
下面,结合具体实施方式,对本发明做进一步描述,需要说明的是,在不相冲突的前提下,以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。以下实施例中若无特别说明,EVA主体树脂的的熔指为200g/10min;红外线屏蔽剂由质量比为1:4的硫化铜与聚苯胺或芘酰亚胺所组成,硫化铜为硫化铜纳米颗粒;散热剂由质量比为1:2的石墨烯、碳纳米管组成;硅烷偶联剂为乙烯基硅烷;助溶剂由质量比为1:1的乙二醇单丁醚与丁醇组成;无机阻燃剂为氢氧化镁;增粘剂为松香树脂;引发剂为过氧化苯甲酰;抗氧剂为四[β-(3,5-二叔丁基-4-羟基苯基)丙酸]季戊四醇酯。
实施例1
一种红外屏蔽型EVA热熔胶膜,包括如下重量份的组分:
EVA主体树脂60份;红外线屏蔽剂10份;散热剂5份;硅烷偶联剂8份;助溶剂2份;无机阻燃剂0.1份;增粘剂3份;引发剂0.1份;抗氧化剂0.01份。
该红外屏蔽型EVA热熔胶膜的制备方法包括如下制备步骤:
S1:将EVA主体树脂、硅烷偶联剂、助溶剂、无机阻燃剂、引发剂、抗氧化剂和增粘剂加入到高速混合机中高速搅拌混合,混合20min后,边搅拌边加入红外线屏蔽剂和散热剂,混合均匀30min,得到混合物料;
S2:将混合物料投入螺杆挤出机中在120℃下熔融挤出,经延流、冷却、牵引及收卷的步骤,得到红外屏蔽型EVA热熔胶膜。
实施例2
一种红外屏蔽型EVA热熔胶膜,包括如下重量份的组分:
EVA主体树脂70份;红外线屏蔽剂20份;散热剂7份;硅烷偶联剂12份;助溶剂4份;无机阻燃剂0.5份;增粘剂7份;引发剂0.5份;抗氧化剂0.5份。
该红外屏蔽型EVA热熔胶膜的制备方法包括如下制备步骤:
S1:将EVA主体树脂、硅烷偶联剂、助溶剂、无机阻燃剂、引发剂、抗氧化剂和增粘剂加入到高速混合机中高速搅拌混合,混合20min后,边搅拌边加入红外线屏蔽剂和散热剂,混合均匀30min,得到混合物料;
S2:将混合物料投入螺杆挤出机中在120℃下熔融挤出,经延流、冷却、牵引及收卷的步骤,得到红外屏蔽型EVA热熔胶膜。
实施例3
一种红外屏蔽型EVA热熔胶膜,包括如下重量份的组分:
EVA主体树脂80份;红外线屏蔽剂30份;散热剂10份;硅烷偶联剂15份;助溶剂6份;无机阻燃剂1份;增粘剂10份;引发剂1份;抗氧化剂1份。
该红外屏蔽型EVA热熔胶膜的制备方法包括如下制备步骤:
S1:将EVA主体树脂、硅烷偶联剂、助溶剂、无机阻燃剂、引发剂、抗氧化剂和增粘剂加入到高速混合机中高速搅拌混合,混合20min后,边搅拌边加入红外线屏蔽剂和散热剂,混合均匀30min,得到混合物料;
S2:将混合物料投入螺杆挤出机中在120℃下熔融挤出,经延流、冷却、牵引及收卷的步骤,得到红外屏蔽型EVA热熔胶膜。
对比例1
与实施例1不同的是,对比例1的EVA热熔胶膜中不含散热剂。其他成分和制备方法与实施例1相同,在此不再赘述。
对比例2
与实施例1不同的是,对比例2的EVA热熔胶膜中不含助溶剂。其他成分和制备方法与实施例1相同,在此不再赘述。
对比例3
与实施例1不同的是,对比例3的EVA热熔胶膜中EVA主体树脂的的熔指为100g/10min。其他成分和制备方法与实施例1相同,在此不再赘述。
性能测试
对实施例和对比例的EVA热熔胶膜与纺织品复合,胶膜的厚度为0.2mm,进行如下测试,耐热性测试标准为HG/T 5052-2016;导热系数测试标准为GB/T10295-2008。样品在近红外区的透过率(NIR)由日本日立公司的U4110型分光光度计测试得到数据,经计算得到。
结果如下表所示。
表1
上述实施方式仅为本发明的优选实施方式,不能以此来限定本发明保护的范围,本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换均属于本发明所要求保护的范围。
Claims (10)
1.一种红外屏蔽型EVA热熔胶膜,其特征在于,包括如下重量份的组分:
EVA主体树脂60份-80份;红外线屏蔽剂10份-30份;散热剂5份-10份;硅烷偶联剂8份-15份;助溶剂2份-6份;无机阻燃剂0.1份-1份;增粘剂3份-10份;引发剂0.1份-1份;抗氧化剂0.01份-1份;其中,所述EVA主体树脂的的熔指为200g/10min-300g/10min。
2.根据权利要求1所述的红外屏蔽型EVA热熔胶膜,其特征在于,所述红外线屏蔽剂为聚苯胺、硫化铜、芘酰亚胺中的一种或两种以上。
3.根据权利要求2所述的红外屏蔽型EVA热熔胶膜,其特征在于,所述红外线屏蔽剂由质量比为1:(4-5)的硫化铜与聚苯胺或芘酰亚胺所组成,其中,所述硫化铜为硫化铜纳米颗粒、硫化铜纳米球中的一种或两种。
4.根据权利要求1所述的红外屏蔽型EVA热熔胶膜,其特征在于,所述散热剂为氧化石墨烯、石墨烯、碳纳米管中的一种或两种以上。
5.根据权利要求1所述的红外屏蔽型EVA热熔胶膜,其特征在于,所述硅烷偶联剂为乙烯基硅烷、氨基硅烷、甲基丙烯酰氧基硅烷中的一种或两种以上。
6.根据权利要求1所述的红外屏蔽型EVA热熔胶膜,其特征在于,所述助溶剂为乙二醇单丁醚、丙二醇单丁醚、二乙二醇单丁醚、丁醇中的一种或两种以上。
7.根据权利要求1所述的红外屏蔽型EVA热熔胶膜,其特征在于,所述无机阻燃剂为氢氧化镁、氢氧化铝中的一种或两种;所述增粘剂为松香树脂、碳五加氢石油树脂、萜烯树脂中的一种或者两种以上。
8.根据权利要求1所述的红外屏蔽型EVA热熔胶膜,其特征在于,所述EVA主体树脂与所述红外线屏蔽剂、硅烷偶联剂的质量比为1:(0.2-0.4):(0.1-0.2)。
9.一种如权利要求1-8任一项所述的红外屏蔽型EVA热熔胶膜的制备方法,其特征在于,包括如下制备步骤:
S1:将EVA主体树脂、硅烷偶联剂、助溶剂、无机阻燃剂、引发剂、抗氧化剂和增粘剂加入到高速混合机中高速搅拌混合,边搅拌边加入红外线屏蔽剂和散热剂,混合均匀,得到混合物料;
S2:将混合物料投入螺杆挤出机中熔融挤出,经延流、冷却、牵引及收卷的步骤,得到红外屏蔽型EVA热熔胶膜。
10.根据权利要求9所述的红外屏蔽型EVA热熔胶膜的制备方法,其特征在于,包括如下制备步骤:
S1:将EVA主体树脂、硅烷偶联剂、助溶剂、无机阻燃剂、引发剂、抗氧化剂和增粘剂加入到高速混合机中高速搅拌混合,混合20min-40min后,边搅拌边加入红外线屏蔽剂和散热剂,混合均匀30min-40min,得到混合物料;
S2:将混合物料投入螺杆挤出机中在120℃-140℃下熔融挤出,经延流、冷却、牵引及收卷的步骤,得到红外屏蔽型EVA热熔胶膜。
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