CN105952250A - 表面履有氟塑料层的防护栏及制备方法 - Google Patents
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Abstract
本发明公开了一种表面履有氟塑料层的防护栏,属于防护设施领域。防护栏的表面从内层至表层依次为金属涂层、环氧富锌层、氟塑料层,金属涂层为喷铝涂层,所述氟塑料层为涂履聚四氟乙烯膜。喷铝涂层的质地较轻且提高了涂层表层的致密性,并且与基材的结合强度高,保证了防护栏的防腐性能;环氧富锌底漆中锌的加入起着阴极保护作用,进一步提升了防护栏的防腐性能;聚四氟乙烯层在防护栏表面形成的聚四氟乙烯膜,将氟塑料应用于防护栏表面形成的轻质涂层,其膜厚较薄,不仅可以增强与基材表面的附着力,同时具有很好的耐腐蚀能;氟塑料表面为膜材料,具有极佳的耐负压特性以及耐冲击力。本发明还公开了上述防护栏的制作方法。
Description
技术领域
本发明涉及一种防护栏,具体讲是一种表面履有氟塑料层的防护栏及制备方法,属于防护设施领域。
背景技术
在大众普遍的观点中,防护栏表面一般是由底漆加面漆组成,底漆是有一些阴极的保护层,例如镀锌层;而面漆是使用清漆,例如树脂面漆之类,当然这样的防护栏涂层表面可以起到防腐的作用,镀锌层可以起到阴极保护作用,聚酯面漆也是常见的面漆。然而聚酯面漆通常的涂抹厚度是比较大的。这里明显的缺陷就是增加了防护栏的重量,这样的涂层与基材的附着力较低,与此同时,聚酯面漆在长时间的太阳暴晒以及雨水的冲刷下,首当其冲的弊病不在于腐蚀,而是会大面积的剥落,这样的情况是时有发生。当表层的面漆脱落之后,防护栏的钢铁基材就完全暴露在空气中,加快了腐蚀的速度。与此同时,聚酯面漆对灰层有一定的吸附,所以在防护栏的清洁方便问题上也是待解决的问题之一。因此 ,寻找一个较为轻质并且与钢铁基材的附着力强的涂层一直是本领域待解决的技术难题。
发明内容
本发明所要解决的技术问题在于克服现有技术缺陷,提供一种耐腐蚀性好的表面履有氟塑料层的防护栏及制备方法。
为了解决上述技术问题,本发明提供的表面履有氟塑料层的防护栏,所述防护栏的表面从内层至表层依次为金属涂层、环氧富锌层、氟塑料层,所述金属涂层为喷铝涂层,所述氟塑料层为涂履聚四氟乙烯膜。
本发明中:所述聚四氟乙烯膜由聚四氟乙烯悬浮液、十二醇酯、二氧化钼、三氧化二铬组成,所述聚四氟乙烯悬浮液、十二醇酯、二氧化钼、三氧化二铬的质量比为100:2:6:3。
本发明中,所述聚四氟乙烯膜的厚度为150±10um。
本发明中,所述喷铝涂层的厚度为200±5um。
本发明还提供上述表面履有氟塑料层的防护栏的制备方法,包括以下步骤:
1)、对防护拦进行脱脂除锈处理;
2)、对防护拦进行喷砂处理;
3)、在防护拦上喷铝涂层:将99.5%的铝雾化喷涂防护拦上;
4)、在防护拦上喷涂环氧富锌层:在120℃温度下进行第一道喷涂,第一道喷涂厚度为50±5um,50℃干燥10小时;再在常温下进行第二道喷涂,第二道喷涂厚度为40±5um,50℃干燥后形成最终环氧富锌层;
5)、在400℃的高温条件下,使用高压空气将聚四氟乙烯涂料雾化并喷涂在步骤4)处理后的防护栏表面形成聚四氟乙烯膜。
相对于现有技术,本发明的有益效果在于:(1)、本发明采用喷铝涂层,喷铝涂层的质地较轻且提高了涂层表层的致密性,并且与基材的结合强度高,在一定程度上保证了防护栏的防腐性能;环氧富锌底漆具有防腐的作用,其中锌的加入起着阴极保护作用,进一步提升了防护栏的防腐性能;聚四氟乙烯层在防护栏表面形成的聚四氟乙烯膜,将氟塑料应用于防护栏表面形成的轻质涂层,其膜厚较薄,不仅可以增强与基材表面的附着力,同时具有很好的耐腐蚀能;此外,氟塑料表面为膜材料,具有极佳的耐负压特性以及耐冲击力;(2)、喷铝涂层选用电弧喷涂系统,使用99.5%的铝作为金属阴极保护层,在压缩空气条件下将金属铝雾化,喷涂在基材的最内层,其中铝基大幅度提高了涂层表层的致密性,并且与基材的结合强度更高,具有很强的耐腐蚀性能。
具体实施方式
以下结合具体的实施例对本发明的技术方案做进一步的阐述,但这实施例仅用于说明而非是对本发明权利要求的限制。
本发明的表面履有氟塑料层的防护栏,包括防护栏本体,防护栏本体为钢材质,防护栏本体的表面从内层至表层依次为喷铝涂层、环氧富锌层、氟塑料层,其中,氟塑料层为涂履聚四氟乙烯膜。其制备方法如下:
实施例
1
1、脱脂除锈处理:采用磷酸作为酸液对防护栏表面进行除油处理,处理后烘干;
2、喷砂处理:采用喷砂的方式使得经步骤1处理后防护栏表面粗糙化,选择石英砂进行喷砂处理;
3、喷铝涂层:选用电弧喷涂系统,使用99.5%的铝作为金属阴极保护层,在压缩空气条件下将金属铝雾化,喷涂在经步骤2处理的防护栏表面,喷涂厚度为200um;
4、喷涂环氧富锌层:首先,在120℃温度下在步骤3处理后的防护栏表面喷涂环氧富锌漆,第一道喷涂厚度为50um,在50℃下干燥10小时;然后,在常温下喷涂第二道环氧富锌漆,第二道喷涂厚度为40um,在50℃烘干即可;
5、氟塑料层:400℃的高温条件下,使用高压空气雾化处理,使聚四氟乙烯涂料雾化并喷涂在步骤4处理后防护栏表面,形成聚四氟乙烯膜;聚四氟乙烯膜的厚度为140um。聚四氟乙烯涂料为聚四氟乙烯悬浮液、十二醇酯、二氧化钼、三氧化二铬,其质量比为100:2:6:3。
实施例
2
1、脱脂除锈处理:将防护栏置于400℃的高温环境中15min,使其表面部分酯自动挥发;
2、喷砂处理:采用喷砂的方式使得经步骤1处理后防护栏表面粗糙化,选择石英砂进行喷砂处理;
3、喷铝涂层:选用电弧喷涂系统,使用99.5%的铝作为金属阴极保护层,在压缩空气条件下将金属铝雾化,喷涂在经步骤2处理的防护栏表面,喷涂厚度为195um;
4、喷涂环氧富锌层:首先,在120℃温度下在步骤3处理后的防护栏表面喷涂环氧富锌漆,第一道喷涂厚度为55um,在50℃下干燥10小时;然后,在常温下喷涂第二道环氧富锌漆,第二道喷涂厚度为35um,在50℃烘干即可;
5、氟塑料层:400℃的高温条件下,使用高压空气雾化处理,使聚四氟乙烯涂料雾化并喷涂在步骤4处理后防护栏表面,形成聚四氟乙烯膜;聚四氟乙烯膜的厚度为160um。聚四氟乙烯涂料为聚四氟乙烯悬浮液、十二醇酯、二氧化钼、三氧化二铬,其质量比为100:2:6:3。
实施例
3
1、脱脂除锈处理:采用磷酸作为酸液对防护栏表面进行除油处理,处理后烘干;
2、喷砂处理:采用喷砂的方式使得经步骤1处理后防护栏表面粗糙化,选择石英砂进行喷砂处理;
3、喷铝涂层:选用电弧喷涂系统,使用99.5%的铝作为金属阴极保护层,在压缩空气条件下将金属铝雾化,喷涂在经步骤2处理的防护栏表面,喷涂厚度为205um;
4、喷涂环氧富锌层:首先,在120℃温度下在步骤3处理后的防护栏表面喷涂环氧富锌漆,第一道喷涂厚度为45um,在50℃下干燥10小时;然后,在常温下喷涂第二道环氧富锌漆,第二道喷涂厚度为45um,在50℃烘干即可;
5、氟塑料层:400℃的高温条件下,使用高压空气雾化处理,使聚四氟乙烯涂料雾化并喷涂在步骤4处理后防护栏表面,形成聚四氟乙烯膜;聚四氟乙烯膜的厚度为150um。聚四氟乙烯涂料为聚四氟乙烯悬浮液、十二醇酯、二氧化钼、三氧化二铬,其质量比为100:2:6:3。
以上对本发明实施例所提供的技术方案进行了详细介绍,本文中应用了具体个例对本发明实施例的原理以及实施方式进行了阐述,以上实施例的说明只适用于帮助理解本发明实施例的原理;同时,对于本领域的一般技术人员,依据本发明实施例,在具体实施方式以及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本发明的限制。
Claims (5)
1.一种表面履有氟塑料层的防护栏,其特征在于:所述防护栏的表面从内层至表层依次为金属涂层、环氧富锌层、氟塑料层,所述的金属涂层为喷铝涂层,所述氟塑料层为涂履聚四氟乙烯膜。
2.根据权利要求1所述的表面履有氟塑料层的防护栏,其特征在于:所述聚四氟乙烯膜由聚四氟乙烯悬浮液、十二醇酯、二氧化钼、三氧化二铬组成,所述聚四氟乙烯悬浮液、十二醇酯、二氧化钼、三氧化二铬的质量比为100:2:6:3。
3. 根据权利要求1或2所述的表面履有氟塑料层的防护栏,其特征在于:所述聚四氟乙烯膜的厚度为150±10um。
4.根据权利要求3所述的表面履有氟塑料层的防护栏,其特征在于:所述喷铝涂层的厚度为200±5um。
5.权利要求1所述表面履有氟塑料层的防护栏的制备方法,其特征在于包括以下步骤:
1)、对防护拦进行脱脂除锈处理;
2)、对防护拦进行喷砂处理;
3)、在防护拦上喷铝涂层:将99.5%的铝雾化喷涂防护拦上;
4)、在防护拦上喷涂环氧富锌层:在120℃温度下进行第一道喷涂,第一道喷涂厚度为50±5um,50℃干燥10小时;再在常温下进行第二道喷涂,第二道喷涂厚度为40±5um,50℃干燥后形成最终环氧富锌层;
5)、在400℃的高温条件下,使用高压空气将聚四氟乙烯涂料雾化并喷涂在步骤4)处理后的防护栏表面形成聚四氟乙烯膜。
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