CN111761901A - 一种用于户外通信设备的防护材料及制备工艺 - Google Patents
一种用于户外通信设备的防护材料及制备工艺 Download PDFInfo
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Abstract
本发明公开了一种用于户外通信设备的防护材料及制备工艺,包括以下步骤:(1)原料混合;(2)制坯;(3)挤出压延;(4)脱脂并纵向拉升;将含油基带在260℃下脱脂,去除助挤剂,获得纵向拉伸基础膜;(5)横向拉升后烧结固化;将纵向拉伸基础膜在拉膜机上进行横向拉伸,拉伸温度为180℃,然后在380℃烧结固化50秒,获得厚度为5微米的微孔膜;(6)将微孔膜与单层PES材料采用耐酸碱盐性胶水复合,得到复合材料;(7)将复合材料进行耐酸碱盐腐蚀处理后,得到用于户外通信设备的高透气量防护材料。本发明制得的防护材料具有透气量高、抗压性能好和低阻力的特点。
Description
技术领域
本发明涉及一种用于户外通信设备的防护材料,特别是一种用于户外通信设备的防护材料及制备工艺。
背景技术
电信行业所使用的户外设备承受着自然环境温度波动变化的影响,同时还会接触各种颗粒,并始终暴露于风、雨、阳光照射等各种气候条件下。恶劣的环境会降低敏感的户外电子设备性能的可靠性和寿命,通信户外设备制造商和加工商通常会给户外通信设备安装防尘防水材料,以此来对户外通信设备进行保护。但是,现有的户外通信设备防护材料,主要用于要求不高的普通防尘防水产品,并不能胜任对电子设备使用环境要求较高的防护产品的防护,特别是4G、5G基站建设防护产品。因此,急需一种高透气量、抗压性能好和低阻力的防护产品。
发明内容
本发明的目的在于,提供一种用于户外通信设备的防护材料及制备工艺。本发明制得的防护材料具有透气量高、抗压性能好和低阻力的特点。
本发明的技术方案:一种用于户外通信设备的防护材料,用于户外通信设备的防护材料的孔径为5um;透气量为400-450L/m2.s;阻力为0-10Pa;防水性为500mmH2O。
前述的一种用于户外通信设备的防护材料中,抗UV性能为优良级。
一种用于户外通信设备的防护材料的制备工艺,包括以下步骤:
(1)原料混合;将PTFE树脂粉料、溶剂和抗菌剂按比例均匀混合,得到制膜液;
(2)制坯;将制膜液在50℃下预压成Φ120mm的圆柱形坯;
(3)挤出压延;将圆柱形坯放置在推压机上,在55℃条件下推压成Φ24mm的圆条;将圆条放置在压延机上,在70℃条件下压延成含油基带,厚度为20微米;
(4)脱脂并纵向拉升;将含油基带在260℃下脱脂,去除助挤剂,并进行第一次纵向拉伸,拉伸倍数为8倍后成为脱脂基带;在280℃下对脱脂基带进行第二次纵向拉伸,获得纵向拉伸基础膜;
(5)横向拉升后烧结固化;将纵向拉伸基础膜在拉膜机上进行横向拉伸,拉伸温度为180℃,然后在380℃烧结固化50秒,获得厚度为5微米的微孔膜;
(6)将微孔膜与单层PES材料采用耐酸碱盐性胶水复合,得到复合材料;
(7)将复合材料进行耐酸碱盐腐蚀处理后,得到用于户外通信设备的高透气量防护材料。
前述的一种用于户外通信设备的防护材料的制备工艺中,PTFE树脂粉料、溶剂和抗菌剂之间的重量比为1:0.2:0.05。
前述的一种用于户外通信设备的防护材料的工艺中,步骤(6)中,微孔膜与单层PES材料采用耐酸碱盐性胶水复合的具体过程为:将耐酸碱盐性胶水涂覆在微孔膜表面,加热至40-50℃,随后将PES材料复合在涂胶面,复合的温度为310-320℃,压力为2.5-2.8公斤的压力,时间为10-20s。
前述的一种用于户外通信设备的防护材料的制备工艺中,步骤(7)中,复合材料耐酸碱盐腐蚀处理的具体方法为:将复合材料放入温度为40-50℃的耐酸碱盐处理液中进行浸轧处理后,然后在进行定型烘干,得到用于户外通信设备的高透气量防护材料。
前述的一种用于户外通信设备的防护材料的制备工艺中,定型烘干包括初始烘干段、中间烘干段和终端烘干段:初始烘干段的温度为170-180℃,烘干时间为20-25s;中间烘干段的温度为80-90℃,时间为30-50s;终端烘干端的温度为155-165℃,时间为60-70s。
与现有技术相比,本发明通过对原料混合、制坯、挤出压延、脱脂并纵向拉升、横向拉升后烧结固化、复合、耐酸碱盐腐蚀处理的各个工艺步骤及参数进行合理的优化改进,能够有效的对膜孔径进行控制,确保膜材料实现低孔径、分布均匀且开孔率高等性能,能够有效降低阻力和提高透气量,且能够高效屏蔽污染物、水和其他液体的影响,使聚四氟乙烯的透气性和透湿性保持稳定,透气量高内外压力保持平衡,最终得到的产品具有透气量高、抗压性能好和低阻力的优点。同时,本发明工艺制得的产品具有良好的抗压力耐蠕变性能,当环境压力发生变化时内部压力在一定范围内保持稳定,且长时间压力变化能保持保护膜产品蠕变控制在一定范围内,保证产品使用寿命。
另外,本发明通过对微孔膜与单层PES材料复合过程进行合理优化改进,通过热传导融合PES材料本身基质,达到复合牢度好且保留透气透湿性,实现使用复杂气候环境需求,解决在环境压力发生变化时内部压力在一定范围内保持稳定,且长时间压力变化能保持保护膜产品蠕变控制在一定范围内,保证产品使用寿命、使用性能稳定。
通过对复合材料进行耐酸碱盐处理,同时利用聚四氟乙烯和PES材料本身的耐化学腐蚀性,提高其耐酸、耐碱、耐盐性能,使复合材料能长时间处于酸碱盐环境,确保使用寿命。
综上所述,本发明制得的防护材料具有透气量高、抗压性能好和低阻力的特点。
具体实施方式
下面结合实施例对本发明作进一步的说明,但并不作为对本发明限制的依据。
实施例1。一种用于户外通信设备的防护材料的制备工艺,包括以下步骤:
(1)原料混合;将PTFE树脂粉料、溶剂和抗菌剂按比例均匀混合,得到制膜液;使PTFE树脂均匀、充分吸附助剂,保证挤出的预成型品性能一致,外观均匀。
(2)制坯;将制膜液在50℃下预压成Φ120mm的圆柱形坯;
(3)挤出压延;将圆柱形坯放置在推压机上,在55℃条件下推压成Φ24mm的圆条;将圆条放置在压延机上,在70℃条件下压延成含油基带,厚度为20微米;
(4)脱脂并纵向拉升;将含油基带在260℃下脱脂,去除助挤剂,并进行第一次纵向拉伸,拉伸倍数为8倍后成为脱脂基带;在280℃下对脱脂基带进行第二次纵向拉伸,获得纵向拉伸基础膜;
(5)横向拉升后烧结固化;将纵向拉伸基础膜在拉膜机上进行横向拉伸,拉伸温度为180℃,然后在380℃烧结固化50秒,获得厚度为5微米的微孔膜;
(6)将微孔膜与单层PES材料采用耐酸碱盐性胶水复合,得到复合材料;
(7)将复合材料进行耐酸碱盐腐蚀处理后,得到用于户外通信设备的高透气量防护材料。
PTFE树脂粉料、溶剂和抗菌剂之间的重量比为1:0.2:0.05。
步骤(6)中,微孔膜与单层PES材料采用耐酸碱盐性胶水复合的具体过程为:将耐酸碱盐性胶水涂覆在微孔膜表面,加热至40-50℃,随后将PES材料复合在涂胶面,复合的温度为310-320℃,压力为2.5-2.8公斤的压力,时间为10-20s。
步骤(7)中,复合材料耐酸碱盐腐蚀处理的具体方法为:将复合材料放入温度为40-50℃的耐酸碱盐处理液中进行浸轧处理后,然后在进行定型烘干,得到用于户外通信设备的高透气量防护材料。
定型烘干包括初始烘干段、中间烘干段和终端烘干段:初始烘干段的温度为170-180℃,烘干时间为20-25s;中间烘干段的温度为80-90℃,时间为30-50s;终端烘干端的温度为155-165℃,时间为60-70s。
用于户外通信设备的防护材料,其是根据前述的一种用于户外通信设备的防护材料的制备工艺制得的产品。
用于户外通信设备的防护材料的孔径为5um;透气量为400-450l/m2.s;阻力为0-10Pa;防水性为500mmH2O;抗UV性能为优良级。
实施例2。一种用于户外通信设备的防护材料的制备工艺,包括以下步骤:
(1)原料混合;将PTFE树脂粉料、溶剂和抗菌剂按比例均匀混合,得到制膜液;使PTFE树脂均匀、充分吸附助剂,保证挤出的预成型品性能一致,外观均匀。
(2)制坯;将制膜液在50℃下预压成Φ120mm的圆柱形坯;
(3)挤出压延;将圆柱形坯放置在推压机上,在55℃条件下推压成Φ24mm的圆条;将圆条放置在压延机上,在70℃条件下压延成含油基带,厚度为20微米;
(4)脱脂并纵向拉升;将含油基带在260℃下脱脂,去除助挤剂,并进行第一次纵向拉伸,拉伸倍数为8倍后成为脱脂基带;在280℃下对脱脂基带进行第二次纵向拉伸,获得纵向拉伸基础膜;
(5)横向拉升后烧结固化;将纵向拉伸基础膜在拉膜机上进行横向拉伸,拉伸温度为180℃,然后在380℃烧结固化50秒,获得厚度为5微米的微孔膜;
(6)将微孔膜与单层PES材料采用耐酸碱盐性胶水复合,得到复合材料;
(7)将复合材料进行耐酸碱盐腐蚀处理后,得到用于户外通信设备的高透气量防护材料。
PTFE树脂粉料、溶剂和抗菌剂之间的重量比为1:0.2:0.05。
步骤(6)中,微孔膜与单层PES材料采用耐酸碱盐性胶水复合的具体过程为:将耐酸碱盐性胶水涂覆在微孔膜表面,加热至40-50℃,随后将PES材料复合在涂胶面,复合的温度为310-320℃,压力为2.5-2.8公斤的压力,时间为10-20s。
步骤(7)中,复合材料耐酸碱盐腐蚀处理的具体方法为:将复合材料放入温度为45℃的耐酸碱盐处理液中进行浸轧处理后,然后在进行定型烘干,得到用于户外通信设备的高透气量防护材料。
定型烘干包括初始烘干段、中间烘干段和终端烘干段:初始烘干段的温度为175℃,烘干时间为23s;中间烘干段的温度为85℃,时间为45s;终端烘干端的温度为160℃,时间为65s。
用于户外通信设备的防护材料,其是根据前述的一种用于户外通信设备的高透气量防护材料的制备工艺制得的产品。
用于户外通信设备的防护材料的孔径为5um;透气量为420l/m2.s;阻力为5Pa;防水性为500mmH2O;抗UV性能为优良级。
Claims (7)
1.一种用于户外通信设备的防护材料,其特征在于:用于户外通信设备的防护材料的孔径为5um;透气量为400-450L/m2.s;阻力为0-10Pa;防水性为500mmH2O。
2.根据权利要求1所述的一种用于户外通信设备的防护材料,其特征在于:抗UV性能为优良级。
3.制备权利要求1或2所述的一种用于户外通信设备的防护材料的工艺,其特征在于,包括以下步骤:
(1)原料混合;将PTFE树脂粉料、溶剂和抗菌剂按比例均匀混合,得到制膜液;
(2)制坯;将制膜液在50℃下预压成Φ120mm的圆柱形坯;
(3)挤出压延;将圆柱形坯放置在推压机上,在55℃条件下推压成Φ24mm的圆条;将圆条放置在压延机上,在70℃条件下压延成含油基带,厚度为20微米;
(4)脱脂并纵向拉升;将含油基带在260℃下脱脂,去除助挤剂,并进行第一次纵向拉伸,拉伸倍数为8倍后成为脱脂基带;在280℃下对脱脂基带进行第二次纵向拉伸,获得纵向拉伸基础膜;
(5)横向拉升后烧结固化;将纵向拉伸基础膜在拉膜机上进行横向拉伸,拉伸温度为180℃,然后在380℃烧结固化50秒,获得厚度为5微米的微孔膜;
(6)将微孔膜与单层PES材料采用耐酸碱盐性胶水复合,得到复合材料;
(7)将复合材料进行耐酸碱盐腐蚀处理后,得到用于户外通信设备的高透气量防护材料。
4.根据权利要求3所述的一种用于户外通信设备的防护材料的制备工艺,其特征在于:PTFE树脂粉料、溶剂和抗菌剂之间的重量比为1:0.2:0.05。
5.根据权利要求3所述的一种用于户外通信设备的防护材料的工艺,其特征在于:步骤(6)中,微孔膜与单层PES材料采用耐酸碱盐性胶水复合的具体过程为:将耐酸碱盐性胶水涂覆在微孔膜表面,加热至40-50℃,随后将PES材料复合在涂胶面,复合的温度为310-320℃,压力为2.5-2.8公斤的压力,时间为10-20s。
6.根据权利要求1所述的一种用于户外通信设备的防护材料的制备工艺,其特征在于:步骤(7)中,复合材料耐酸碱盐腐蚀处理的具体方法为:将复合材料放入温度为40-50℃的耐酸碱盐处理液中进行浸轧处理后,然后在进行定型烘干,得到用于户外通信设备的高透气量防护材料。
7.根据权利要求6所述的一种用于户外通信设备的防护材料的制备工艺,其特征在于:定型烘干包括初始烘干段、中间烘干段和终端烘干段:初始烘干段的温度为170-180℃,烘干时间为20-25s;中间烘干段的温度为80-90℃,时间为30-50s;终端烘干端的温度为155-165℃,时间为60-70s。
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5286279A (en) * | 1992-12-14 | 1994-02-15 | W. L. Gore & Associates, Inc. | Gas permeable coated porous membranes |
CN103612397A (zh) * | 2013-11-22 | 2014-03-05 | 湖州森诺氟材料科技有限公司 | 一种用于电子通信密封行业的聚四氟乙烯微孔膜及其制备方法 |
CN109049909A (zh) * | 2018-07-27 | 2018-12-21 | 湖州森诺氟材料科技有限公司 | 抑菌除臭的聚四氟乙烯复合膜及生产工艺 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5286279A (en) * | 1992-12-14 | 1994-02-15 | W. L. Gore & Associates, Inc. | Gas permeable coated porous membranes |
CN103612397A (zh) * | 2013-11-22 | 2014-03-05 | 湖州森诺氟材料科技有限公司 | 一种用于电子通信密封行业的聚四氟乙烯微孔膜及其制备方法 |
CN109049909A (zh) * | 2018-07-27 | 2018-12-21 | 湖州森诺氟材料科技有限公司 | 抑菌除臭的聚四氟乙烯复合膜及生产工艺 |
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