什么是荧光增白剂?要比较客观专业的回答哦...

2025-03-26 01:32:52
推荐回答(2个)
回答1:

荧光增白剂可以吸收不可见的紫外光,(波长范围约为360—380 nm),转换为波长较长的蓝光或紫色的可见光,因而可以补偿基质中不想要的微黄色,同时反射出比原来入射的波长在400——600 nm范围的更多的可见光,从而使制品显得更白、更亮、更鲜艳。在日常生活中,接触荧光剂的机会很多。只要 不超过一定标准,会给我们生活带来不少好处。如果过量的与它接触,会对人体造成伤害。科学实验表明,荧光剂被人体吸收后,不象一般的化学成分容易被分解。万一身上有伤口,使其与人体中的蛋白质相结合,便会阻碍伤口的愈合,并且除去它非常不易,只有通过肝脏的酵素分解,这无疑的加重了肝脏的负担,据医学临床实验证实,荧光物质可以使细胞产生变异性,变异荧光物质可以接收可见光比紫外线波长更短的电磁波或放射线,在将这些能量转为波长较长的可见光。这样,如果对荧光剂接触过量,可能有潜在的致癌因素。虽然目前没有证明荧光剂吸收多少会对人体造成伤害,但是荧光剂仍然被列为潜在致癌因素之一。

荧光增白剂的应用
一:荧光增白剂BC性能及用途 外观为淡黄色粉末。色光以与标准近似,溶于水呈蓝色荧光,不溶于水杂质含量0.5%,强度为标准品的1005,细度(通过100目筛残余物含量)5%,泛黄点5%,水分含量5%。本品主要用于棉纤维、人造丝、人造棉和纸浆等中性染浴增白处理。二:荧光增白剂JD-3 性能及用途 外观为淡黄色粉末,能溶于热水。本品在中性或微碱性条件下,用于合成洗涤剂、肥皂、造纸和纺织品的增白。三:荧光增白剂挺进31#性能及用途 外观为淡黄色粉末,具有一般二苯乙烯三嗪型增白剂性能。荧光色调为青光,呈阴离子型。可溶于100℃或1000倍25℃水中。水分含量5%,不溶于水的杂质含量0.5%。本品主要用于合成洗涤剂、肥皂、香皂、纸张的增白,也用于棉织物、锦纶、人造丝等的增白,可使被增白物增白发亮。四:荧光增白剂BR(增白剂BL)成 分 DSD酸钠盐与异氰酸苯酯的缩合物性能及用途 外观为淡黄色粉末,属阴离子型,微带红紫色。2%水溶液澄清,95%以上通过60目筛。五:荧光增白剂EBF成 分 邻氨基苯酚与2,5-二羧酸噻吩的缩合物性能及用途 外观为细微黄白色悬浮液。有鲜艳的蓝色荧光。含有效荧光物质10%,属非离子型,呈中性,可与水以任何比例稀释分散。耐硬水、耐酸、耐碱、耐晒,氧化漂白稳定。增白强度与标准品相似,能与大多数施用于白色织物的整理剂和染色载体共用。酸碱度为10g/L,分散液pH6。本品主要用于涤纶、锦纶和醋纤的增白,也可用于合纤与棉、毛混纺织物的增白。六:荧光增白剂R成 分 DSD酸钠盐与异氰酸苯酯的缩俣物性能及用途 外观为白色至淡黄色粉末。阴离子型。95%以上通过60目筛。0.2%水溶液澄清。本品主要用于纤维、纸张、白地印染增白和浅色纤维增艳。七: 荧光增白剂AD(荧光增白剂CA)成 分 对氯代--吗啉基丙酰苯盐酸盐与对甲磺酰苯肼盐酸盐的缩合性能及用途 外观为带绿光的淡黄色细针状结晶。本品主要用作合成纤维的增白剂。八:荧光增白剂ER(增白剂PS-1)性能及用途 强度为标准品的1003,色光与标准品近似,非离子型,在水中均匀分散。本品用于涤纶、涤/棉混纺织物的增白。用其处理的织物白度高、色光纯。具有优异的耐洗、耐晒和耐升华牢度。
  产品名称应用范围性能与特点荧光增白剂系列荧光增白剂PS-1涤纶本品为黄绿色分散液体,呈非离子型;具有高白度,适合于浸轧工艺,有好的耐升华性能。荧光增白剂PS-2涤纶本品为黄绿色分散液体,呈非离子型;具有高白度,适合于浸轧工艺。荧光增白剂PS-3涤纶本品为黄绿色分散液体,呈非离子型;具有高白度,适合于浸染低温工艺。荧光增白剂PS-D涤纶本品为白灰色分散液体,呈非离子型;具有高白度,适合于低温工艺。荧光增白剂ECS涤棉织物本品为蓝绿色乳浊液,具有白度高,能低温发色的特点;与汽巴公司ECS相类似。荧光增白剂4BK纯棉织物本品为黄绿色粉末,属阴离子型,呈蓝色光;适合于浸染,具有高白度的特点。荧光增白剂CXT纯棉织物本品为白色粉末,属阴离子型,呈蓝色光;适用于纯棉织物的浸染。尼龙增白剂CL尼龙织物本品为黄色透明液体,属阳离子型,具有高白度和高的耐晒牢度。腈纶增白剂BAC腈纶织物本品为黄色透明液体,属阳离子型,具有高白度,耐亚氯酸钠漂白。荧光增白剂XMF本品为黄色粉末,为其他增白剂的复配品种,能有效提高增白剂的使用效果。荧光增白剂CBS-X洗涤剂本品为绿色粉末,能应用于洗涤剂和洗衣粉中。

回答2:

荧光增白剂是一种色彩调理剂,具有亮白增艳的作用,广泛用于造纸、纺织、洗涤剂等多个领域中。荧光增白剂约有15种基本结构类型,近400种结构。我国允许在衣物洗涤剂中添加的荧光增白剂有两种类型:二苯乙烯基联苯类(如CBS等)和双三嗪氨基二苯乙烯类(如33#等)。

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