CN107099201B - 水可稀释型聚氟乙烯涂料与涂层及其形成方法 - Google Patents
水可稀释型聚氟乙烯涂料与涂层及其形成方法 Download PDFInfo
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- CN107099201B CN107099201B CN201610652209.5A CN201610652209A CN107099201B CN 107099201 B CN107099201 B CN 107099201B CN 201610652209 A CN201610652209 A CN 201610652209A CN 107099201 B CN107099201 B CN 107099201B
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Classifications
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- B05D7/52—Two layers
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- B05D7/542—No clear coat specified the two layers being cured or baked together
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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Abstract
本发明提供一种水可稀释型聚氟乙烯涂料、涂层及形成方法。该涂层的形成方法包括:将底漆施加至基材上,其中底漆包括100重量份的第一聚氟乙烯、30‑70重量份的辅助树脂、5‑30重量份的固化剂、100‑120重量份的第一潜溶剂、3‑甲氧基‑3‑甲基‑1‑丁醇、与水,其中第一潜溶剂:3‑甲氧基‑3‑甲基‑1‑丁醇:水的重量比为60:10‑20:40‑60;将面漆施加至底漆上,其中面漆包括:100重量份的聚氟乙烯、100‑120重量份的第二潜溶剂、3‑甲氧基‑3‑甲基‑1‑丁醇、与水,其中第二潜溶剂:3‑甲氧基‑3‑甲基‑1‑丁醇:水的重量比为50:10‑20:30‑60;以及烘干面漆与底漆以形成涂层。
Description
技术领域
本揭露关于聚氟乙烯涂料,特别关于水可稀释型聚氟乙烯涂料。
背景技术
聚氟乙烯(PVF)涂料具有优异的物化性能,如耐酸碱性、抗冲击性、无毒性、耐挠性、与耐磨性等特性。同时聚氟乙烯涂料也具有耐水性、及卓越的耐候性。与其他含氟涂料如聚三氟氯乙烯(PCTFE)、聚四氟乙烯(PTFE)、聚全氟乙丙烯(FEP)和聚偏氟乙烯(PVDF))相较,烘烤的温度相较低。
目前油性PVF涂料主要由PVF树脂、潜溶剂、颜料、和热稳定剂等组成。潜溶剂需搭配其他溶剂来稳定涂料体系,导致PVF涂料体系的挥发性有机化合物(VOC)含量较高。适用于PVF的潜溶剂种类可参考美国专利号2953818与3139470。美国专利号4786546揭露了底漆由20-40wt%具有特定结构的丙烯酸酯共聚物及80-6 0wt%PVF所组成,面漆是PVF,可以喷完底漆后直接喷面漆,达到湿对湿,二涂一烤的效果,但是属于油性系统。油性涂料在制造、施工、干燥、固化、和成膜过程中,向空气挥发的VOC是主要的环境污染物之一,对人体健康和环境构成了严重的污染和威胁。为此,世界各国都制定了相应的环保法规,限制涂料中VOC的排放。因此,如何降低PVF涂料中的VOC是当前亟需解决的问题。
发明内容
本揭露一实施例提供的水可稀释型聚氟乙烯涂料,包括:100重量份的聚氟乙烯、30-70重量份的辅助树脂、5-30重量份的固化剂、100-120重量份的潜溶剂、3-甲氧基-3-甲基-1-丁醇、与水,其中潜溶剂:3-甲氧基-3-甲基-1-丁醇:水的重量比为60:10-20:40-60。
本揭露一实施例提供的水可稀释型聚氟乙烯涂料,包括:100重量份的第二聚氟乙烯、100-120重量份的潜溶剂、3-甲氧基-3-甲基-1-丁醇、与水,其中潜溶剂:3-甲氧基-3-甲基-1-丁醇:水的重量比为50:10-20:30-60。
本揭露一实施例提供的涂层,包括:底涂层,包括100重量份的第一聚氟乙烯以及30-70重量份的辅助树脂与5-30重量份的固化剂反应形成的产物;以及面涂层位于底涂层上,且面涂层包括100重量份的第二聚氟乙烯。
本揭露一实施例提供的涂层的形成方法,包括:将底漆施加至基材上,其中底漆包括100重量份的第一聚氟乙烯、30-70重量份的辅助树脂、5-30重量份的固化剂、100-120重量份的第一潜溶剂、3-甲氧基-3-甲基-1-丁醇、与水,其中第一潜溶剂:3-甲氧基-3-甲基-1-丁醇:水的重量比为60:10-20:40-60;将面漆施加至底漆上,其中面漆包括:100重量份的第二聚氟乙烯、100-120重量份的第二潜溶剂、3-甲氧基-3-甲基-1-丁醇、与水,其中第二潜溶剂:3-甲氧基-3-甲基-1-丁醇:水的重量比为50:10-20:30-60;以及烘干面漆与底漆以形成涂层。
具体实施方式
本揭露一实施例提供的涂层的形成方法,包括将底漆施加至基材上。上述基材可为经由喷砂或铬酸皮膜处理的铝金属或是铝合金;经由铬酸皮膜处理的镀锌铁、镀铝锌铁材,或不锈钢材。底漆包括100重量份的聚氟乙烯(PVF)、30-70重量份的辅助树脂、5-30重量份的固化剂、100-120重量份的潜溶剂、3-甲氧基-3-甲基-1-丁醇、与水,其中潜溶剂:3-甲氧基-3-甲基-1-丁醇:水的重量比为60:10-20:40-60。在一实施例中,底漆的制备方法如下。将PVF、辅助树脂、固化剂、潜溶剂、3-甲氧基-3-甲基-1-丁醇、水、颜料(非必要)、防腐蚀剂(非必要)、热稳定剂(非必要)、与助剂(非必要)混合搅拌并研磨,最后以适当目数的滤网(如300目)过滤即得底漆。值得注意的是,若上述辅助树脂的型态为液态时,其重量比例仅考虑其固成份,而非含水或其他溶剂的总重。
在一实施例中,聚氟乙烯可为美国杜邦的Tedlar TPVF 116粉末。上述辅助树脂可为水性聚酯树脂、水性丙烯酸树脂、水性苯氧基树脂、水性环氧树脂、水性环氧-聚酯树脂、或上述的组合。在一实施例中,水性丙烯酸树脂包括水溶性丙烯酸多元醇树脂、乳液型丙烯酸多元醇树脂、水溶性苯乙烯与丙烯酸共聚物多元醇树脂(如长兴材料工业股份有限公司的ETERWAT1611)、乳液型苯乙烯与丙烯酸共聚物多元醇树脂、或上述的组合。在一实施例中,水性聚酯树脂包括水溶型聚酯多元醇树脂(如上海钧胜贸易公司的WP-536、长兴材料工业股份有限公司的5050-B-75、DSM的Uradil SZ-250-M1-40、或Uradil SZ-251-G3Z-70)、乳液型聚酯多元醇树脂(如上海钧胜贸易公司的WP-850)、水性丙烯酸酯改性聚酯树脂(如DSM的Uradil SZ-260-G3-65)、或上述的组合。在一实施例中,上述水性苯氧基(Phenoxy)树脂可为美国Inchem公司的PKHW-34、PKHW-35、或PKHW-38。在一实施例中,水性环氧树脂可为日本AKEKA EM-0434AN或美国氰特BECKOPOX EP386W/5WA。在一实施例中,水性环氧-聚酯树脂可为美国氰特DUROXYN VAX6127W/42WA、VEF2406W/45WA、VEF4380W/35WA,或上述的组合。若辅助树脂的比例过高,则影响底漆与面漆的层间附着力,同时由于辅助树脂与PVF的相对较低兼容性,辅助树脂的比例过高,会使得成膜后涂层的物化性能降低,当辅助树脂增多,硬化剂相对也会增加,造成交联连密度过高时,也会使得涂层的耐折(T-bend)性能下降。若辅助树脂的比例过低,则底漆与基材的附着力下降,也使涂层的沸水附着力下降。
上述固化剂可为水性胺基树脂、水性异氰酸酯树脂、或上述的组合。在一实施例中,水性胺基树脂可为完全甲醚化三聚氰胺甲醛树脂(如Allnex的CYMEL 303LF、长春化工的MR-603LF)、部分甲基醚化三聚氰胺甲醛树脂(如长兴材料工业股份的ETERMINO 9603-80)、高NH型三聚氰胺甲醛树脂(如长春化工的M-40WT或M-50WT)、混合醚化三聚氰胺甲醛树脂如甲基醚化与正丁醇醚化的混合醚化三聚氰胺甲醛树脂(如长春化工的MR-2130,其中甲基醚化与正丁醇醚化的比例为3比1;MR-2131,其中甲基醚化与正丁醇醚化的比例为2比1)、甲基醚化与异丁醇醚化的混合醚化三聚氰胺甲醛树脂(如长春化工的MR-2161,其中甲基醚化与异丁醇醚化的比例为3比1)、水性高度烷基醚化的苯代三聚氰胺树脂(如Allnex公司所贩卖的CYMEL1123、MYCOAT 137、或其组合)、或上述的组合。在一实施例中,水性胺基树脂为部分甲醚化三聚氰胺甲醛树脂、水性高度烷基醚化苯代三聚氰胺树脂、或上述的组合。在一实施例中,采用封闭型水性异氰酸酯树脂。上述水性异氰酸酯树脂可为耐候性的不黄变水性异氰酸酯树脂,比如Perstorp公司的RhodocatTM WT-1000,Baxenden Chemical的BI200、BI 201、或BI 220、或上述的组合。若固化剂的比例过高,则会使涂层的的耐折(T-bend)性能下降。若固化剂的比例过低,则底漆与基材的附着力下降,也使涂层的沸水附着力下降。
上述潜溶剂是指在室温下对聚氟乙烯不具有任何溶解能力,但在100℃以上高温下能完全溶解聚氟乙烯的溶剂,帮助PVF成膜。在一实施例中,潜溶剂可为N-甲基吡咯酮、N-乙基吡咯酮、二甲基乙酰胺、二甲基甲酰胺、碳酸丙烯酯、碳酸乙烯酯、碳酸丁烯酯、γ-丁内酯、环丁砜、或上述的组合。在一实施例中,潜溶剂包含碳酸丙烯酯、环丁砜、或上述的组合。在一实施例中,潜溶剂为环丁砜。值得注意的是当潜溶剂为碳酸丙烯酯、碳酸乙烯酯、或碳酸丁烯酯时,则需低温储存涂料。否则在高温时,碳酸丙烯酯、碳酸乙烯酯、或碳酸丁烯酯在有金属氧化物的存在下,会跟水产生反应,产生二氧化碳,造成涂料储存安定性不好的问题。若潜溶剂的比例过高,则VOC的含量升高,且干燥固化涂层时,需要更高的温度或更长的时间,造成能量消耗高,同时对于喷涂系统而言,会造成易于涂层流挂这种弊病,此外亦可能会造成与配方中的水性辅助树脂的兼容性变差问题,即亦会影响底漆的成膜性。若潜溶剂的比例过低,则涂层的成膜性能降低,进而影响涂层整体的物理化学耐性,耐候性等。其原因是PVF在烘烤的过程中,随着温度增加,潜溶剂会溶解PVF,同时也会部份开始挥发,当潜溶剂不足时,则无法完全溶解PVF,有效帮助PVF成膜,造成部份PVF皮膜成膜性不好,产生龟裂现象,严重时,PVF无法成膜,皮膜直接产生粉化现象。
本揭露中所使用的3-甲氧基-3-甲基-1-丁醇(3-methoxy-3-methyl-1-butanol,MMB)的醇醚溶剂,亲水亲油且环保,溶于大部分溶剂,且与水能完全互溶。3-甲氧基-3-甲基-1-丁醇/水体系可形成簇状结构,其具有作用力很强的氢键,所以在本揭露的PVF涂料底漆及面漆配方内加入3-甲氧基-3-甲基-1-丁醇,不需要添加任何的防流挂剂助剂,就可以防止涂料流挂,此外本揭露也发现,在PVF涂料配方中加入适量的3-甲氧基-3-甲基-1-丁醇,还可以增加PVF涂层的成膜性,成膜时不易缩边。3-甲氧基-3-甲基-1-丁醇在本揭露的组成配方中,主要的作用是防流挂及作为PVF的成膜助溶剂。若3-甲氧基-3-甲基-1-丁醇用量过少,则涂层容易流挂。若3-甲氧基-3-甲基-1-丁醇用量过多,则涂料组成的潜溶剂相对变少,也会影响PVF的成膜性。若上述涂料中的水比例过高,则涂层会容易流挂,成膜性能降低,进而影响涂层整体的物理化学耐性。若上述涂料中的水比例过低,则VOC的含量高。
接着将面漆施加至底漆上,其中面漆包括100重量份的聚氟乙烯、100-120重量份的潜溶剂、3-甲氧基-3-甲基-1-丁醇、与水。在本揭露的PVF面漆涂料配方内加入3-甲氧基-3-甲基-1-丁醇,不需要添加任何的防流挂剂助剂,就可以防止涂料流挂。若单独使用乙二醇丁醚、二乙二醇丁醚、或二丙二醇甲醚等两性溶剂或混合使用来取代3-甲氧基-3-甲基-1-丁醇,则涂层会流挂,造成涂层表面有缺陷。上述面漆中的潜溶剂:3-甲氧基-3-甲基-1-丁醇:水的重量比为50:10-20:30-60。接着烘干面漆与底漆以形成涂层。在一实施例中,面漆的制备方法如下。将PVF、潜溶剂、3-甲氧基-3-甲基-1-丁醇、水、颜料(非必要)、与助剂(非必要)混合搅拌并研磨,最后以适当目数的滤网(如300目)过滤即得面漆。面漆中的聚氟乙烯、潜溶剂、以及3-甲氧基-3-甲基-1-丁醇与底漆类似,在此不赘述。在一实施例中,面漆与底漆中的聚氟乙烯与潜溶剂相同。在面漆中,若潜溶剂的比例过高,则VOC的含量升高,且干燥固化时需要更高的温度或更长的时间,造成能量消耗高,同时对于喷涂系统而言,会造成涂层易于流挂这种弊病。若潜溶剂的比例过低,则涂层的成膜性能降低,进而影响涂层整体的物理化学耐性,耐候性等。其原因是PVF在烘烤的过程中,随着温度增加,潜溶剂会溶解PVF,同时也会部份开始挥发。当潜溶剂不足时,则无法完全溶解PVF以有效帮助PVF成膜,造成部份PVF皮膜成膜性不好,产生龟裂现象,严重时,PVF无法成膜,皮膜直接产生粉化现象。若3-甲氧基-3-甲基-1-丁醇用量过少,则涂层容易流挂。若3-甲氧基-3-甲基-1-丁醇的比例过高,则涂料组成的潜溶剂相对变少,且涂层的成膜性能降低,进而影响涂层整体的物理化学耐性。若水的比例过高,则涂层会容易流挂,则涂层的成膜性能降低,进而影响涂层整体的物理化学耐性。若水的比例过低,则VOC的含量高。
接着在基材上施加底漆,然后在底漆上施加面漆。上述施加底漆与面漆的方法可为常见的涂布方法如喷涂、淋涂、刮刀涂布、旋转涂布、滚涂,或其他涂布法。接着将基材置入关闭鼓风的烘箱中以215至235℃烘烤2至5分钟,再于开启鼓风的烘箱中以180至205℃烘烤8至15分钟,或在有微风循环的烘箱中以280至350℃烘烤2至5分钟(根据基材的厚度调整炉温,基材越厚,炉温越高,烘烤时间亦需延长),再于开启鼓风的烘箱中以240℃烘烤5分钟,再于开启鼓风的烘箱中以180至200℃烘烤10至15分钟,最后冷却至室温。上述烘烤步骤将去除底漆中的潜溶剂、溶剂、3-甲氧基-3-甲基-1-丁醇、与水,并使其辅助树脂与固化剂反应以形成底涂层。此外,上述烘烤步骤亦去除面漆中的潜溶剂、3-甲氧基-3-甲基-1-丁醇、与水以形成面涂层于底涂层上,达到湿对湿两次喷涂,一次烘烤的加工程序。
在一实施例中,烘烤后的涂层总厚度介于25至35μm之间。若涂层的厚度过厚,则需要湿膜的厚度较大,极易在固化干燥时涂层产生流挂现象。若涂层的厚度过薄,则可能会使涂层的物化性能降低。在一实施例中,烘烤后的底漆厚度介于10至15μm之间,且面漆厚度介于15至20μm之间。由于涂层的厚度有一定的范围要求,过厚的面漆等同过薄的底漆,这将降低涂层于基材上的附着力。另一方面,过厚的底漆等同过薄的面漆,这将降低双层涂层的耐化学性、耐溶剂性、与耐候性。
上述底漆和面漆可进一步添加颜料如各种颜色的无机色粉,包含但不限于白色粉如钛白粉、珠光粉、或硫化锌;黑色粉如钴铜锰氧化物、炭黑、铜锰氧化物、铜锰铁氧化物、或氧化铁;黄色粉如钛黄或铋黄;绿色粉如钴绿、或氧化铬绿;或蓝色粉如钴铬铝氧化物等及水性铝浆。色粉可单独使用或混合使用。底漆和面漆优先选择相同颜色的色粉,或是底漆选择白色,灰色或是淡黄色,面漆选择比较深的颜色,原则只要可以盖住底漆的颜色即可。
在本揭露一实施例中,底漆和面漆中可添加助剂。助剂没有具体限制,只要不影响本揭露目的即可。助剂可为防腐蚀剂、分散剂、润湿剂、消泡剂、或上述的组合。
为了让本揭露的上述和其他目的、特征、和优点能更明显易懂,下文特举数实施例,作详细说明如下:
实施例
实施例所用的药品名称及来源列举如下,但不限于下述药品:
PVF:购自美国杜邦的Tedlar TPVF 116粉末,固成份100%。
水性丙烯酸树脂:购自长兴材料工业股份有限公司的ETERWAT 1611,固成份51%,含水量28%,乙二醇丁醚(BCS)含量18%,二甲基乙醇胺含量3%。
水性聚酯树脂:购自上海钧胜贸易公司的WP-850,固成份30%,含水量30%,乙二醇丁醚(BCS)含量40%、或购自长兴材料股份有限公司的ETERKYD 5050-B-75固成份75%,乙二醇丁醚(BCS)含量25%。
水性苯氧基树脂:购自美国Inchem公司的PKHW-34,固成份34%,含水量为52%,正丁醇含量4%,二甲基乙醇胺含量3%,丙二醇丙醚含量7%。
水性环氧树脂:购自日本ADEKA EM-043AN,固成份30%,丙二醇丙醚含量10%,含水量为60%。
水性环氧-聚酯树脂:购自美国氰特DUROXYN VAX6127W/42WA,固成份42%,含水量为58%。
水性胺基树脂:购自Allnex的CYMEL 1123,固成份100%、或购自长兴材料工业股份有限公司的ETERMINO 9603-80,固成份80%,甲醇/异丁醇含量为20%。
水性异氰酸酯树脂:购自瑞士Perstorp公司的RhodocatTM WT-1000,固成份63%,含水量为35%,乙酸丁酯含量为2%。
碳酸丙烯酯:购自山东石大胜华集团的碳酸丙烯酯。
环丁砜:购自中国光华化工(营口)有限公司。
3-甲氧基-3-甲基-1-丁醇:购自日本KURARAY的MMB。
乙二醇丁醚:购自DOW CHEMICAL的BCS。
钛白粉:购自HUNTSMAN的TIOXIDE TR-81。
分散剂:购自德国BYK的DISPERBYK-190。
润湿剂:购自美国Momentive的CoatOSil 1211。
热稳定剂:购自PERSTORP的甲酸钠,购自日本DAICEL公司的Celloxide 2021P环氧树脂。
防腐蚀剂:购自美国HALOX的Z-Plex 111。
测试板:购自美国Q-Panel的化铬表面铝板(AL型),厚度0.64mm。
测试板:台湾长耕国际有限公司所提供经过铬酸盐皮膜处理的铝板,厚度为3.5mm。
实施例1
制备底漆:将100g的TPVF 116粉末、135g的ETERWAT 1611水性丙烯酸树脂、100g的碳酸丙烯酯潜溶剂、33.3g的3-甲氧基-3-甲基-1-丁醇、67g的水、30.5g的ETERMINO 9603-80水性胺基树脂、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide 2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备面漆:将100g的TPVF 116粉末、100g的碳酸丙烯酯潜溶剂、20g的3-甲氧基-3-甲基-1-丁醇、60g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)、与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上先涂布底漆,再于底漆上涂布面漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
实施例2
制备底漆:将100g的TPVF 116粉末、225g的水性聚酯树脂WP-850、100g环丁砜潜溶剂、33.3g的3-甲氧基-3-甲基-1-丁醇、100g的水、24.5g的水性胺基树脂(CYMEL 1123)、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide 2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备面漆:将100g的TPVF 116粉末、110g的环丁砜潜溶剂、22g的3-甲氧基-3-甲基-1-丁醇、110g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)、与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在铬酸盐皮膜处理的铝板,厚度为3.5mm的测试板上先涂布底漆,再于底漆上涂布面漆,然后将测试板在有微循环风的烘箱中以350℃烘烤2分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
实施例3
制备底漆:将100g的TPVF 116粉末、205g的PKHW-34水性苯氧基树脂、110g的碳酸丙烯酯潜溶剂、36g的3-甲氧基-3-甲基-1-丁醇、74g的水、47.6g的WT-1000水性异氰酸酯树脂、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide 2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备面漆:将100g的TPVF 116粉末、120g的碳酸丙烯酯潜溶剂、48g的3-甲氧基-3-甲基-1-丁醇、96g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上先涂布底漆,再于底漆上涂布面漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
实施例4
制备底漆:将100g的TPVF 116粉末、80g的ETERKYD 5050-B-75水性聚酯树脂、110g的环丁砜潜溶剂、18.5g的3-甲氧基-3-甲基-1-丁醇、110g的水、20g的CYMEL 1123水性胺基树脂、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide 2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备面漆:将100g的TPVF 116粉末、100g的环丁砜潜溶剂、40g的3-甲氧基-3-甲基-1-丁醇、120g的水、1g的分散剂、3g的润湿剂、1g的热稳定散剂(0.94g的Celloxide2021P环氧树脂及0.06g的甲酸钠所组成)、与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在铬酸盐皮膜处理的铝板,厚度为3.5mm的测试板上先涂布底漆,再于底漆上涂布面漆,然后将测试板在有微循环风的烘箱中以340℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
实施例5
制备底漆:将100g的TPVF 116粉末、100g的ETERWAT 1611水性丙烯酸树脂、50g的PKHW-34水性苯氧基树脂、120g的碳酸丙烯酯潜溶剂、40g的3-甲氧基-3-甲基-1-丁醇、120g的水、6.5g的ETERMINO 9603-80水性胺基树脂、19.5g的CYMEL 1123水性胺基树脂、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide 2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备面漆:将100g的TPVF 116粉末、110g的环丁砜潜溶剂、44g的3-甲氧基-3-甲基-1-丁醇、77g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上先涂布底漆,再于底漆上涂布面漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
实施例6
制备底漆:将100g的TPVF 116粉末、75g的ETERWAT 1611水性丙烯酸树脂、40g的ETERKYD 5050-B-75水性聚酯树脂、55g的碳酸丙烯酯和55g的环丁砜潜溶剂、36g的3-甲氧基-3-甲基-1-丁醇、74g的水、14.5g的CYMEL 1123水性胺基树脂、16g的WT-1000水性异氰酸酯树脂、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide 2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备面漆:将100g的TPVF 116粉末、60g的碳酸丙烯酯和60g的环丁砜潜溶剂、36g的3-甲氧基-3-甲基-1-丁醇、108g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)、与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上先涂布底漆,再于底漆上涂布面漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
实施例7
制备底漆:将100g的TPVF 116粉末、75g的ETERWAT 1611水性丙烯酸树脂、100g的WP-850水性聚酯树脂、120g的环丁砜潜溶剂、20g的3-甲氧基-3-甲基-1-丁醇、80g的水、12.5g的ETERMINO 9603-80水性胺基树脂、10g的CYMEL 1123水性胺基树脂、7.5g的WT-1000水性异氰酸酯树脂、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide 2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备面漆:将100g的TPVF 116粉末、120g的环丁砜潜溶剂、24g的3-甲氧基-3-甲基-1-丁醇、96g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上先涂布底漆,再于底漆上涂布面漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
实施例8
制备底漆:将100g的TPVF 116粉末、73.8g的VAX6127W/42WA水性环氧-聚酯树脂、110g的环丁砜潜溶剂、20g的3-甲氧基-3-甲基-1-丁醇、87g的水、5g的CYMEL 1123水性胺基树脂、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide 2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备面漆:将100g的TPVF 116粉末、120g的环丁砜潜溶剂、24g的3-甲氧基-3-甲基-1-丁醇、96g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)、与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上先涂布底漆,再于底漆上涂布面漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
实施例9
制备底漆:将100g的TPVF 116粉末、110g的EM-043AN水性环氧树脂、110g的环丁砜潜溶剂、20g的3-甲氧基-3-甲基-1-丁醇、87g的水、5g的CYMEL 1123水性胺基树脂、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide 2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备面漆:将100g的TPVF 116粉末、120g的环丁砜潜溶剂、24g的3-甲氧基-3-甲基-1-丁醇、96g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)、与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上先涂布底漆,再于底漆上涂布面漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
实施例1-9的组成如第1表所示。
第1表
续第1表
比较例1(无辅助树脂)
制备底漆:将100g的TPVF 116粉末、100g的碳酸丙烯酯潜溶剂、33.3g的3-甲氧基-3-甲基-1-丁醇、67g的水、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备面漆:将100g的TPVF 116粉末、100g的碳酸丙烯酯潜溶剂、20g的3-甲氧基-3-甲基-1-丁醇、60g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)、与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上先涂布底漆,再于底漆上涂布面漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
比较例2(MMB少)
制备底漆:将100g的TPVF 116粉末、135g的ETERWAT 1611水性丙烯酸树脂、100g的碳酸丙烯酯潜溶剂、15g的3-甲氧基-3-甲基-1-丁醇、67g的水、24.5g的CYMEL 1123水性胺基树脂、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide 2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备面漆:将100g的TPVF 116粉末、100g的碳酸丙烯酯潜溶剂、18g的3-甲氧基-3-甲基-1-丁醇、60g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)、与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上先涂布底漆,再于底漆上涂布面漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
比较例3(MMB多)
制备底漆:将100g的TPVF 116粉末、135g的ETERWAT 1611水性丙烯酸树脂、100g的碳酸丙烯酯潜溶剂、40g的3-甲氧基-3-甲基-1-丁醇、67g的水、24.5g的水性胺基树脂(CYMEL 1123)、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide 2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备面漆:将100g的TPVF 116粉末、100g的碳酸丙烯酯潜溶剂、50g的3-甲氧基-3-甲基-1-丁醇、60g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)、与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上先涂布底漆,再于底漆上涂布面漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
比较例4(只有底漆)
将100g的TPVF 116粉末、135g的ETERWAT 1611水性丙烯酸树脂、110g的环丁砜潜溶剂、27.5g的3-甲氧基-3-甲基-1-丁醇、74g的水、24.5g的水性胺基树脂(CYMEL 1123)、2g的分散剂、2g的润湿剂、0.5g的热稳定剂(0.47g的Celloxide 2021P环氧树脂及0.03g的甲酸钠所组成)、10g的防腐蚀剂、与60g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上涂布底漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
比较例5(只有面漆)
制备面漆:将100g的TPVF 116粉末、100g的环丁砜潜溶剂、40g的3-甲氧基-3-甲基-1-丁醇、60g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)、与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上先涂布面漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
比较例6(只有面漆,乙二醇丁醚取代3-甲氧基-3-甲基-1-丁醇)
制备面漆:将100g的TPVF 116粉末、100g的环丁砜潜溶剂、40g的乙二醇丁醚、60g的水、1g的分散剂、3g的润湿剂、1g的热稳定剂(0.94g的Celloxide 2021P环氧树脂及0.06g的甲酸钠所组成)、与45g的钛白粉混合搅拌并研磨至粒径小于10微米,最后以300目的滤网过滤。
制备涂层:在Q-Panel的化铬表面铝板(AL型),厚度0.64mm测试板上先涂布面漆,然后将测试板在有微循环风的烘箱中以280℃烘烤3分钟,再于240℃烘烤3分钟,再于开启鼓风的烘箱中以200℃烘烤15分钟,最后冷却至室温即得涂层。
比较例1-6的组成如第2表所示。
第2表
上述实施例1-9与比较例1-6的涂层性质的量测方法如下,且涂层性质如第3表所示。
光泽:按照美国材料标准ASTM D523所述方法测定。
膜厚:按美国材料标准ASTM D7091所述方法测定。
硬度:按照日本工业标准JIS K 5400所述方法测定。
成膜性:以眼睛观察。
耐酸性:按照日本工业标准JIS K 5400所述方法测试。
耐碱性:按照日本工业标准JIS K 5400所述方法测试。
耐MEK性:按照美国材料标准ASTM D5402所述方法测定。
耐折(T-Bend)加工试验:按照美国材料标准ASTM D4145所述方法测定。
抗冲击性:按照美国建筑制造商协会规范AAMA_2605-05所述方法测试。
附着力:按照美国材料标准ASTM D3359所述方法测定。干态及煮沸水2小钟后的附着力是依照美国建筑制造商协会规范AAMA_2605-05所述方法测试,唯不同处是本揭露进一步煮沸水2小时后来测附着力。
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虽然本揭露已以数个实施例揭露如上,然其并非用以限定本揭露,任何本技术领域中具有通常知识者,在不脱离本揭露的精神和范围内,当可作任意的更动与润饰,因此本揭露的保护范围当视后附的申请专利范围所界定者为准。
Claims (7)
1.一种水可稀释型聚氟乙烯涂料,包括:
100重量份的聚氟乙烯、30-70重量份的辅助树脂、5-30重量份的固化剂、100-120重量份的潜溶剂、3-甲氧基-3-甲基-1-丁醇、与水,其中潜溶剂:3-甲氧基-3-甲基-1-丁醇:水的重量比为60:10-20:40-60;
其中该辅助树脂为水性聚酯树脂、水性丙烯酸树脂、水性苯氧基树脂、水性环氧树脂、水性环氧-聚酯树脂、或上述的组合,且其中该潜溶剂为N-甲基吡咯酮、N-乙基吡咯酮、二甲基乙酰胺、二甲基甲酰胺、碳酸丙烯酯、碳酸乙烯酯、碳酸丁烯酯、γ-丁内酯、环丁砜、或上述的组合。
2.根据权利要求1所述的水可稀释型聚氟乙烯涂料,其中该固化剂为水性胺基树脂、水性异氰酸酯树脂、或上述的组合。
3.一种水可稀释型聚氟乙烯涂料,包括:
100重量份的第二聚氟乙烯、100-120重量份的潜溶剂、3-甲氧基-3-甲基-1-丁醇、与水,
其中潜溶剂:3-甲氧基-3-甲基-1-丁醇:水的重量比为50:10-20:30-60;
其中该潜溶剂为N-甲基吡咯酮、N-乙基吡咯酮、二甲基乙酰胺、二甲基甲酰胺、碳酸丙烯酯、碳酸乙烯酯、碳酸丁烯酯、γ-丁内酯、环丁砜、或上述的组合。
4.一种涂层,包括:
一底涂层,包括100重量份的第一聚氟乙烯,以及30-70重量份的辅助树脂与5-30重量份的固化剂反应形成的产物;以及
一面涂层位于该底涂层上,且该面涂层包括100重量份的第二聚氟乙烯;
其中该辅助树脂为水性聚酯树脂、水性丙烯酸树脂、水性苯氧基树脂、水性环氧树脂、水性环氧-聚酯树脂、或上述的组合。
5.根据权利要求4所述的涂层,其中该固化剂为水性胺基树脂、水性异氰酸酯树脂、或上述的组合。
6.一种涂层的形成方法,包括:
将一底漆施加至一基材上,其中该底漆包括100重量份的第一聚氟乙烯、30-70重量份的辅助树脂、5-30重量份的固化剂、100-120重量份的第一潜溶剂、3-甲氧基-3-甲基-1-丁醇、与水,其中第一潜溶剂:3-甲氧基-3-甲基-1-丁醇:水的重量比为60:10-20:40-60;
将一面漆施加至该底漆上,其中该面漆包括:100重量份的第二聚氟乙烯、100-120重量份的第二潜溶剂、3-甲氧基-3-甲基-1-丁醇、与水,其中第二潜溶剂:3-甲氧基-3-甲基-1-丁醇:水的重量比为50:10-20:30-60;以及
烘干该面漆与该底漆以形成一涂层;
其中该辅助树脂为水性聚酯树脂、水性丙烯酸树脂、水性苯氧基树脂、水性环氧树脂、水性环氧-聚酯树脂、或上述的组合,且其中该第一潜溶剂与该第二潜溶剂各自为N-甲基吡咯酮、N-乙基吡咯酮、二甲基乙酰胺、二甲基甲酰胺、碳酸丙烯酯、碳酸乙烯酯、碳酸丁烯酯、γ-丁内酯、环丁砜、或上述的组合。
7.根据权利要求6所述的涂层的形成方法,其中该固化剂为水性胺基树脂、水性异氰酸酯树脂、或上述的组合。
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