CN117645821A - 一种不含挥发性有机物水性修色材料的制备方法及其应用 - Google Patents
一种不含挥发性有机物水性修色材料的制备方法及其应用 Download PDFInfo
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Abstract
本发明提供了一种不含挥发性有机物的水性修色材料,用于木器领域涂装的底修色、面修色的水性色材料,其组成按重量份计为:水性丙烯酸乳液40~50份,水性聚氨酯分散体25~35份,润湿流平剂0.25‑0.75份,润湿分散剂1~2份,消泡剂1.5~3.5份,增稠剂0.5~2份,PH调节剂0.1~0.2份,水10~20份;本发明的水性着色材料,基于水性丙烯酸乳液耐候性优、附着力强特点,结合水性聚氨酯分散体优异成膜、韧性优异,可实现水性修色涂层实现附着力佳、修色均匀不易开花、保色优异等性能优点;本发明材料不人为添加任何挥发性的有机溶剂,实现真正意义上的不含挥发性有机物排放和施工,同时安全健康无毒环保,可在任意基材或底材上实现着色,不咬底,不脱落。
Description
技术领域
本发明属于水性木器漆技术领域,具体涉及一种不含挥发性有机物水性修色材料的制备方法及其应用。
背景技术
水性材料相比传统的溶剂型材料,使用水作为稀释剂,减少了对环境的污染。传统溶剂型漆中含有挥发性有机化合物(VOC),它们在涂装过程中挥发出来,对空气质量和人体健康有害。而水性漆的VOC含量相对大幅减少,对环境和人体健康的影响较小,符合环保要求,在木器领域市场化的过程中逐步替换传统溶剂型漆的使用。
但在水性木器领域涂装工艺因修色工艺的特殊性,其长期大量使用含酒精或大量有机溶剂的“假水性”产品进行修色施工,不符合国家标准及相关政策法规,且气味大,利用效率极低,严重影响力木器领域水性涂装进展,在此背景下,亟待开发一种不含挥发性有机物(VOCs)排放和不影响客户当前性能的水性修色材料迫在眉睫。
发明内容
本发明的目的在于克服现有技术的不足,提供一种不含挥发性有机物水性修色材料的制备方法及其应用。该水性修色材料不仅能够从源头上避免挥发性有机物(VOCs)排放,而且还能满足实际应用中修色效果和性能需求。
本发明的目的是通过以下技术方案来实现的:一种不含挥发性有机物水性修色材料,由下列重量份比的原料制备而成:
其中,所述水性丙烯酸乳液的制备方法为:甲基丙烯酸甲酯为单体,采用室温自交联引用双丙酮丙烯酰胺与已二酸二酰胺合成得到,所述甲基丙烯酸甲酯、双丙酮丙烯酰胺和已二酸二酰胺的质量比为1:1:1;
所述水性聚氨酯分散体的制备方法为:采用熔融工艺分散法,将六亚甲基二异氰酸酯作为预聚物和聚四氢呋喃二醇-2000合成得到,所述六亚甲基二异氰酸酯和聚四氢呋喃二醇-2000的质量比为1.5:1。
进一步的,其重量百份比含量为:
进一步的,所述润湿流平剂为不含溶剂的聚醚硅氧烷润湿流平剂。如德国毕克BYK-345。
进一步的,所述润湿分散剂不含溶剂和乙氧基壬基酚的阴离子型、非离子型、多官能团型。如德国TEGO公司的TEGO Dispers 755W(具高颜料亲和基团之共聚合物水溶液)或TEGO Dispers 760W(多官能团型的表面活性剂与含颜料亲和基团的水溶液)。
进一步的,所述消泡剂为有机硅类和/或有机改性聚硅氧烷乳液。如德国TEGO公司Foamex 810(消泡剂浓缩液),如美国气体化学SURFYNOL AD01。
进一步的,所述增稠剂为丙烯酸类、聚氨酯类的水性缔合增稠剂。如为德国明凌MunzingPUR 61(非离子型水性聚氨酯)。
进一步的,所述PH调节剂有机酸碱缓冲剂。优选气味小的醇胺,例如美国ANGUS的AMP-95(份子结构为2-氨基-2-甲基-1-丙醇)。调整原子灰pH值目的是为了保证储存过程中的稳定性,一般控制在pH7-9之间,加入量为0.1~0.3份,优选的为0.1份。
进一步的,所述去离子水为TDS低于100PPM过滤用水。
本发明还提供上述的一种不含挥发性有机物水性修色材料的制备方法,包括以下步骤:
(1)将水性丙烯酸乳液、水性聚氨酯分散体投入容器罐内;取部分水与PH调节剂混合后,再缓慢投入容器罐内,中速500-800r/min换拌2分钟至均匀;其中,所述部分水占总水量1/10-1/9;
(2)中速500-800r/min搅拌下缓慢投入增稠剂、润湿流平剂、润湿分散剂、消泡剂搅拌2分钟至均匀;
(3)高速800-1000r/min搅拌30分钟,加入余下水,过滤检测包装。
本发明还提供上述的一种不含挥发性有机物水性修色材料用于木器漆的应用。具体为用于木器领域涂装的底修色、面修色的水性色材料。
当用于木器漆的应用时,直接采用本领域公知的方法,添加颜料色精或色浆,均匀喷涂于被涂物体上即可。
本发明的有益效果是:
1、本发明采用室温自交联技术引用双丙酮丙烯酰胺与已二酸二酰胺(1.1:1)合成的水性丙烯酸乳液,其漆膜对被涂物具有优异的附着力,同时修色工艺中还具有不易发花、保光保色性号的特点。
2、本发明采用六亚甲基二异氰酸酯(HDI)作为预聚物和聚四氢呋喃二醇(PTMG)-2000合成而成的水性聚氨酯分散体,同水性丙烯酸乳液搭配具有优异的成膜效果、漆膜韧性佳、丰满度优良。
3、本发明采用具有成膜效果的消泡剂,在帮助漆膜消泡的同时辅以水性聚氨酯分散体可保证极地温度的成膜效果,漆膜完整不开裂。
4、本发明产品直接加水可使用,无使用时间限制,使用不添加水。
5、本发明的水性修色材料为水性环保产品,同比常规产品具有不含VCO排放,可满足日益增长的客户健康安全需求。
具体实施方式
下面进一步详细描述本发明的技术方案,但本发明的保护范围不局限于以下所述。
实施例1主体成膜物采用水性丙烯酸乳液制备
制备方法:将水性丙烯酸乳液40份、水性聚氨酯分散体35份投入容器罐内;取用先用2份水与AMP-95 0.1份混合后,再缓慢投入容器内,中速500-800r/min换拌2分钟至均匀;中速500-800r/min搅拌下缓慢投入TEGO Dispers 755W 1份、Tego-810 0.3份、AD01 3份,高速800-1000r/min搅拌搅拌30分钟;最后加入余下去离子水17.8份,调节粘度过滤。
对比例1(使用水性丙烯酸乳液等量替代水性聚氨酯分散体)
制备方法:将水性丙烯酸乳液75份投入容器罐内,先用2份水与AMP-95 0.1份混合后,再缓慢投入容器内,中速500-800r/min换拌2分钟至均匀;中速500-800r/min搅拌下缓慢投入TEGO Dispers 715W1份、Tego-810 0.3份、AD01 3份,高速800-1000r/min搅拌搅拌30分钟;最后加入余下去离子水17.8份,调节粘度过滤。
对比例2(使用常见水性丙烯酸乳液替代本发明的水性丙烯酸乳液)
制备过程同实施例1,不同的是本对照例的水性修色材料采用常规的水性丙烯酸乳液制作,如DSM XK-14或万华4509,组分如下:
对比例3(使用常见水性聚氨酯分散体替代本发明的水性聚氨酯分散体)
制备过程同实施例1,不同的是本对照例的水性修色材料采用常规的水性聚氨酯分散体制作,如万华Crysol 6130,组分如下:
对比例4(不使用具有成膜效果的AD01)
制备方法:将水性丙烯酸乳液40份、水性聚氨酯分散体35份投入容器罐内;取用2份水与AMP-95 0.1份混合后,再缓慢投入容器内,中速500-800r/min换拌2分钟至均匀;中速500-800r/min搅拌下缓慢投入TEGO Dispers 715W 1份、Tego-810 0.3份,高速800-1000r/min搅拌搅拌30分钟;最后加入余下去离子水20.8份,调节粘度过滤。
实验例
不含挥发性有机物(VOCs)排放水性修色材料基础数据检测指标:
表1-1
水性修色材料的性能评估方法及步骤
本发明用于水性木器涂装的修色材料可应用于不同基材、不同工艺环节的透明效果涂装修色。对上述实施例、对照例的样品进行修色性能评价,这些水性修色试验全部是在20cm×30cm×2cm的溶剂型聚氨酯清底材料和光固化清底材料、水性单组分清底材料的黑胡桃板上进行的,重点评估在溶剂型聚氨酯清底材料上性能,具体操作方法为:按表1-1进行人工喷涂,分别评价湿膜后展色性、入孔性、消泡性、净味性、成膜性,隔夜后喷涂水性单组分三分光材料评估干膜后的通透性、附着力、干膜效果,评估常温自干7天后评估耐老化性能,测定不同实施案例水性修色材料挥发性有机物(VOCs),其评价结果见表1-2。
展色性:展色均匀、不发花为5级,着色发花为0级,依次分为5级;
入孔性:孔洞均匀不缩边为5级,入孔臃肿缩边为0级,依次分为5级;
消泡性:湿膜干净无泡为5级,明显气泡且不消除0级,依次分为5级;
净味性:无任何气味为5级,刺激性气味为0级,依次分为5级;
成膜性:4℃湿膜厚度300um不开裂为最佳;
通透性:自然通透为5级,发白雾影为0级,依次分为5级;
附着力:用刻刀划出5组问距约1m的交叉网格,用透明胶带贴于刻痕表面压实后撕下,以网格内色料脱落情况依次分为0到5级;
耐老化性:按GB/T 23999-2009耐老化△E数据记录,数值越小性能越好;
挥发性有机物(VOCs):按木器涂料有害物质限量GB 18581-2020中GB/T 23986-2009中10.4进行计算测定;
表1-2
参阅表1-2,可以看出本发明所述不含挥发性有机物(VOCs)排放水性修色材料具有优秀的施工入孔性、消泡性,在保证不人为添加有机溶剂情况下也具有优异的成膜性、不同种类基材的附着力,其干膜效果也达到实际应用需求,耐老化指标远远优于国家标准。
以上所述仅是本发明的优选实施方式,应当理解本发明并非局限于本文所披露的形式,不应看作是对其他实施例的排除,而可用于各种其他组合、修改和环境,并能够在本文所述构想范围内,通过上述教导或相关领域的技术或知识进行改动。而本领域人员所进行的改动和变化不脱离本发明的精神和范围,则都应在本发明所附权利要求的保护范围内。
Claims (10)
1.一种不含挥发性有机物水性修色材料,其特征在于,由下列重量份比的原料制备而成:
其中,所述水性丙烯酸乳液的制备方法为:甲基丙烯酸甲酯为单体,采用室温自交联引用双丙酮丙烯酰胺与已二酸二酰胺合成得到,所述甲基丙烯酸甲酯、双丙酮丙烯酰胺和已二酸二酰胺的质量比为1:1:1;
所述水性聚氨酯分散体的制备方法为:采用熔融工艺分散法,将六亚甲基二异氰酸酯作为预聚物和聚四氢呋喃二醇-2000合成得到,所述六亚甲基二异氰酸酯和聚四氢呋喃二醇-2000的质量比为1.5:1。
2.根据权利要求1所述的一种不含挥发性有机物水性修色材料,其特征在于,其重量百份比含量为:
3.根据权利要求1或2所述的一种不含挥发性有机物水性修色材料,其特征在于,所述润湿流平剂为不含溶剂的聚醚硅氧烷润湿流平剂。
4.根据权利要求1或2所述的一种不含挥发性有机物水性修色材料,其特征在于,所述润湿分散剂不含溶剂和乙氧基壬基酚的阴离子型、非离子型、多官能团型。
5.根据权利要求1或2所述的一种不含挥发性有机物水性修色材料,其特征在于,所述消泡剂为有机硅类和/或有机改性聚硅氧烷乳液。
6.根据权利要求1或2所述的一种不含挥发性有机物水性修色材料,其特征在于,所述增稠剂为丙烯酸类、聚氨酯类的水性缔合增稠剂。
7.根据权利要求1或2所述的一种不含挥发性有机物水性修色材料,其特征在于,所述PH调节剂有机酸碱缓冲剂。
8.根据权利要求1或2所述的一种不含挥发性有机物水性修色材料,其特征在于,所述去离子水为TDS低于100PPM过滤用水。
9.权利要求1-8任一项所述的一种不含挥发性有机物水性修色材料的制备方法,其特征在于,包括以下步骤:
(1)将水性丙烯酸乳液、水性聚氨酯分散体投入容器罐内;取部分水与PH调节剂混合后,再缓慢投入容器罐内,中速500-800r/min换拌2分钟至均匀;其中,所述部分水占总水量1/10-1/9;
(2)中速500-800r/min搅拌下缓慢投入增稠剂、润湿流平剂、润湿分散剂、消泡剂搅拌2分钟至均匀;
(3)高速800-1000r/min搅拌30分钟,加入余下水,过滤检测包装。
10.权利要求1-8任一项所述的一种不含挥发性有机物水性修色材料用于木器漆的应用。
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