CN115141104A - 一种环保型有机胺及其制备方法和用途 - Google Patents
一种环保型有机胺及其制备方法和用途 Download PDFInfo
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- CN115141104A CN115141104A CN202210758400.3A CN202210758400A CN115141104A CN 115141104 A CN115141104 A CN 115141104A CN 202210758400 A CN202210758400 A CN 202210758400A CN 115141104 A CN115141104 A CN 115141104A
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- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/33—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings
- C07C211/34—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton
- C07C211/35—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton containing only non-condensed rings
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- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/44—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers
- C07C209/48—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers by reduction of nitriles
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- C07C211/01—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms
- C07C211/02—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
- C07C211/09—Diamines
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- C07C211/34—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton
- C07C211/36—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton containing at least two amino groups bound to the carbon skeleton
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- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
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- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
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Abstract
本发明提供一种环保型有机胺及制备方法和用途。所述有机胺采用油性疏水胺与卤代腈进行取代反应,继续加氢,得到目标产物环保型有机胺。所述有机胺的水溶性优异,固化速度快,固化产物的硬度高,耐热氧老化性能好,且制备技术工艺简单,成本低,生产效率高。该有机胺可作为助剂应用于高分子材料、复合材料等工程材料领域,适用于高档环保美缝剂、接缝王,水性环氧彩砂,透水砖中。
Description
技术领域
本发明属于高分子材料领域,具体涉及一种环保型有机胺及其制备方法和用途。
背景技术
随着生活水平和环保意识的不断提升,人们对于空气质量问题的关注度持续升高,化工原材料中挥发性有机物(VOC)污染的管控越来越严格。国家严格管控VOC,促进各行业向环保、低排放涂装工艺转变。在涂料行业,明确提出要推广水性涂料,减少大气VOC污染。所谓的水性涂料是指以水作为分散介质的涂料,相比以甲苯、二甲苯、苯甲醇等有机溶剂作分散介质的油性涂料,其VOC污染几乎为零。因此,化工原材料的水性化是一种降低VOC的有效手段,是行业的发展的重要方向之一。
美缝剂作为室内装修材料,其VOC污染问题与千家万户密切相关,油性美缝剂的水性化是大势所趋。CN113185939A公布了一种水性美缝剂,但其制备方法复杂,施工不便,而且体系中含有典型的VOC物质苯甲醇,并非真正的水性体系。CN112094563A公开了一种水性环氧美缝剂,但所述的制备原料毫无水性特色,仍然存在VOC污染问题。
此外,随着美缝剂产品的更新迭代,对其性能也提出了越来越高的要求。美缝剂需要经受地暖长时间的热氧老化,因此耐热氧老化性能要好,不易碎裂;此外,美缝剂的硬度要高,在处于受力变化的环境中时,能够长期保持不凹陷、不变形。但目前美缝剂产品普遍不能同时满足上述性能要求,存在诸多行业痛点。CN110257001A公开的聚氨酯型美缝剂具有高延展性、高柔韧性的特点,但其硬度不高,由于地板受力不断变化,美缝条极易受挤压而变形,凹陷处易藏污纳垢滋生霉变。
针对上述问题,行业内亟需开发一种硬度高、热稳定性好的新型水性环保美缝剂。
发明内容
本发明的目的在于提供一种环保型有机胺及其制备方法,通过在疏水油性有机胺分子中引入脂肪胺结构,使水溶性大幅改善。当原疏水胺为脂环胺或芳香胺时,经脂肪胺化后,N-H参与化学反应的位阻降低,反应活性大幅提高,作环氧树脂固化剂使用时,能显著提升固化活性,使固化程度增大,进而使固化物的硬度和耐热氧老化性能得到提升。
为实现上述目的,本发明所采用的技术方案如下:
一种环保型有机胺的制备方法,所述方法采用油性疏水胺与卤代腈进行取代反应,继续加氢,得到目标产物环保型有机胺。
本发明采用了一种新的油性胺水性化方案,即通过引入脂肪胺链段的方式,实现油性胺的水性化。该方案工艺简单,可替代各种复杂的传统水性化方式(如物理混配乳化剂等实现水性化),使生产周期大大缩短,且所用原料卤代物廉价易得,对于油性胺的水性化具有重要的现实意义,易于实现工业化生产。新的油性胺水性化方案扩展了油性胺的应用领域,同时也使油性胺的性能优势(如油性脂环胺或芳香胺具有较强的链段刚性、较高的聚合物热稳定性)能够在水性体系中得到充分发挥。
在一种实施方案中,所述制备方法涉及如下反应式:
本发明中,制备方法中所述油性疏水胺为无水溶性的胺或水中常温溶解度≤10wt%的胺,优选4,4'-二氨基二环己基甲烷(HMDA)、二环己胺(DCHA)、甲基环己二胺(HTDA)、苯胺、对氨基二苯胺、邻氨基二苯胺、己胺、己二胺、庚胺、辛胺、壬胺中的一种或多种。
本发明中,制备方法中所述卤代腈为C2-C12的卤代腈,优选氯乙腈、溴乙腈、碘乙腈、3-氯丙腈、3-溴丙腈、3-碘丙腈、4-氯丁腈、4-溴丁腈、4-碘丁腈、5-氯戊腈、5-溴戊腈、5-碘戊腈中的一种或多种;优选地,所述油性疏水胺与卤代腈的摩尔比为1:(0.8~2.1),优选1:(0.9~1.9)。本发明中,所述取代反应中,催化剂为一价铜盐CuX,其中,X为Cl、Br、I、AcO中的一种;优选地,催化剂用量为卤代腈加入量的0.13-0.17mol%。
本发明中,所述取代反应中,溶剂为芳烃,优选甲苯和/或二甲苯;优选地,溶剂用量为卤代腈用量的60-80wt%;反应温度为70-80℃。
本发明中,所述加氢反应中,采用底物质量1.7-2.3wt%wt%的雷尼镍催化剂、5.8-6.2MPa氢气、反应温度95-101℃。
本发明的另一目的在于提供一种环保型有机胺。
本发明的又一目的在于提供一种环保型有机胺的用途。
一种环保型有机胺的用途,所述有机胺采用上述的制备方法制备获得,或为上述的有机胺,所述有机胺可作为助剂应用于工程材料的水性体系产品,优选作为助剂应用于高分子材料、复合材料的水性体系产品。
油性的疏水胺难以应用于水性体系配方,本发明在其分子结构中引入脂肪胺链段的方式将其水性化,极大扩展了应用领域,同时也使油性胺的性能优势(如较强的链段刚性、较高的聚合物热稳定性)能够在水性体系中得到充分发挥。
本发明的再一目的在于提供一种水性环氧树脂组合物。
一种水性环氧树脂组合物,所述组合物包含上述的制备方法制备的有机胺,或包含上述的有机胺,所述组合物由A、B双组份制备:
其中,A组分以总质量为100%计,包含:
B组分以总质量为100%计,包含:
环氧树脂 68-82wt%
水 5-15wt%
触变剂 13-17wt%;
所述A组分与B组分的质量比为1:(2-4)。
本发明中脂环胺或芳香胺的N-H参与化学反应时,由于位阻效应,反应活性较低。采用本发明的方案对其进行水性化,引入了脂肪胺链段,大大降低了位阻效应,使反应活性大幅提高,做环氧固化剂使用时,能显著提升固化活性,使固化程度增大,进而使固化物的硬度和耐热氧老化性能得到提升。
本发明中,组合物中所述触变剂为氢化蓖麻油、纤维素、气相二氧化硅、膨润土中的一种或多种,优选气相二氧化硅,更优选CABOT TS-530和/或赢创A200。
本发明中,组合物中所述止流剂为毕克化学BYK607、百辰化学BC-607、上海德予得NP607中的一种或多种。
本发明中,组合物中所述色粉为珠光粉、金葱粉、钛白粉中的一种或多种。
本发明的还一目的在于提供一种水性环氧树脂组合物的用途。
一种水性环氧树脂组合物的用途,所述组合物为上述的水性环氧树脂组合物,所述组合物用于高档环保美缝剂、接缝王,水性环氧彩砂,透水砖。
上述水性环氧树脂组合物应用于美缝剂、接缝王、环氧彩砂或透水砖时,不仅能够实现快速表干,而且室温条件下固化24h,固化后样块的硬度可达到80D以上;且耐热氧老化性能优异(Tg>120℃),满足行业的要求。
本发明采用引入脂肪胺链段的方式将油性疏水胺水性化,极大扩展了其应用领域;与此同时,当原疏水胺为脂环胺或芳香胺时,脂肪胺链段的引入还使原疏水胺的反应活性大幅提高,做环氧固化剂使用时,能显著提升固化活性,使固化程度增大,进而使固化物的硬度和耐热氧老化性能得到提升。
本发明的方案由于固化剂已水性化,使组合物体系以水作溶剂变成可能,应用于室内装饰材料(如美缝剂)时,极大减少了室内VOC污染,降低了人体健康危害,是一种极具市场竞争力的产品。与此同时,该组合物应用于美缝剂时,固化反应活性高,可实现快速表干,且固化后的美缝条硬度高、坚硬如瓷,进而不易沾染污垢、抗霉变性能优异;耐热氧老化性能好,经受地暖长时间的热氧老化而不易碎裂。
与现有技术相比较,本发明的有益效果在于:
(1)油性胺水性化方案扩展了油性胺的应用领域,同时也使油性胺的性能优势(如油性脂环胺或芳香胺具有较强的链段刚性、较高的聚合物热稳定性)能够在水性体系中得到充分发挥。
(2)做环氧固化剂使用时,能显著提升固化活性,使固化程度增大,进而使固化物的硬度和耐热氧老化性能得到提升。
(3)由于固化剂已水性化,使组合物体系以水作溶剂变成可能,应用于室内装饰材料时,极大减少了室内VOC污染,降低了人体健康危害,同时,该组合物固化反应活性高,可实现快速表干,硬度高、不易沾染污垢、抗霉变性能优异,耐热氧老化性能好不易碎裂。
附图说明
图1中左杯为疏水胺4,4'-二氨基二环己基甲烷(HMDA)置于水中,呈白色絮状不溶,右杯为HMDA经本发明技术水性化后制得的有机胺1#置于水中,有机胺1#完全溶解。
具体实施方式
下面通过具体实施例对本发明做进一步说明,本发明所述实施例只是作为对本发明的说明,不限制本发明的范围。
所使用的主要原料信息:
3-氯丙腈:98%,上海阿拉丁生化科技股份有限公司;
离子交换树脂:YKW800,天津允开树脂科技有限公司;
壬基酚:优级纯,上海阿拉丁生化科技股份有限公司;
气相二氧化硅A200:Evonik;
气相二氧化硅CABOT TS-530:卡博特蓝星化工(江西)有限公司;
膨润土:TY-138,安吉天裕膨润土有限公司;
纤维素:HT-K,山东潍坊力特复合材料有限公司;
氢化蓖麻油:KEY-129,中科微新材料(深圳)有限公司;
BYK607:毕克化学;
BC-607:百辰化学科技(沈阳)有限公司;
NP607:上海德予得贸易有限公司;
珠光粉:P120SW,江苏贝丽得新材料有限公司;
金葱粉:GH3500,广东冠虹金葱科技有限公司;
钛白粉:BA01-01,河北唯彩颜料有限公司;
间苯二甲胺:99%,上海阿拉丁生化科技股份有限公司;
酸性离子交换树脂:YKW800,天津允开树脂科技有限公司。
测试方法:
表干时间:参照《GB 1728-1979漆膜、腻子膜干燥时间测定法》;
硬度:参照《GB/T 2411-1980塑料邵氏硬度试验方法》,HTS-800D,上海奕纵精密仪器有限公司;
玻璃化转变温度Tg:参照《GB/T 19466.2-2004塑料差示扫描量热法(DSC)第2部分:玻璃化转变温度的测定》,升温速率10℃/min。
实施例1
按照以下方法制备环保型有机胺1#:
氮气保护下,控制反应温度在75℃,将3-氯丙腈(1.9mol)滴加到4,4'-二氨基二环己基甲烷(1mol)与119.1g甲苯、0.0015mol CuCl的混合物中,滴加完成后保温反应2h,蒸馏(90℃、绝压2kPa)除去残余单体,再用酸性离子交换树脂对产物进行后处理(产物以4m/h的流速反复通过柱子,直至出口液体PH=7),后经催化加氢(采用底物质量2wt%的雷尼镍催化剂RC-211(江苏雷尼金属科技有限公司)、6MPa氢气、反应温度98℃),即得目标产物环保型有机胺1#。
实验室环境下(温度16℃,湿度28%),将10g的4,4'-二氨基二环己基甲烷和10g的有机胺1#分别溶于100g水中,二者在水中溶解度见图1。
实施例2
氮气保护下,控制反应温度在70℃,将氯乙腈(0.8mol)滴加到二环己胺(1mol)与36.2g二甲苯、0.0013mol CuBr的混合物中,滴加完成后保温反应2h,蒸馏(90℃、绝压2kPa)除去残余单体,再用酸性离子交换树脂对产物进行后处理(产物以4m/h的流速反复通过柱子,直至出口液体PH=7),后经催化加氢(采用底物质量1.7wt%的雷尼镍催化剂RC-211(江苏雷尼金属科技有限公司)、5.8MPa氢气、反应温度95℃),即得目标产物环保型有机胺2#。
实施例3
氮气保护下,控制反应温度在80℃,将4-碘丁腈(2.1mol)滴加到甲基环己二胺(1mol)与327.6g甲苯、0.0017mol CuI的混合物中,滴加完成后保温反应2h,蒸馏(90℃、绝压2kPa)除去残余单体,再用酸性离子交换树脂对产物进行后处理(产物以4m/h的流速反复通过柱子,直至出口液体PH=7),后经催化加氢(采用底物质量2.3wt%的雷尼镍催化剂RC-211(江苏雷尼金属科技有限公司)、6.2MPa氢气、反应温度101℃),即得目标产物环保型有机胺3#。
实施例4
氮气保护下,控制反应温度在75℃,将5-溴戊腈(0.9mol)滴加到己胺(1mol)与109.4g二甲苯、0.0014mol CuAcO的混合物中,滴加完成后保温反应2h,蒸馏(90℃、绝压2kPa)除去残余单体,再用酸性离子交换树脂对产物进行后处理(产物以4m/h的流速反复通过柱子,直至出口液体PH=7),后经催化加氢(采用底物质量1.9wt%的雷尼镍催化剂RC-211(江苏雷尼金属科技有限公司)、6.1MPa氢气、反应温度99℃),即得目标产物环保型有机胺4#。
实施例5
按照以下方法制备水性环氧树脂组合物:
分别准备A、B组分:
B组分:将75g水性环氧树脂,10g水,15g气相二氧化硅A200混合均匀。
将A、B组分按照质量比1:3混合均匀(总量500g),得到水性环氧树脂组合物,其性能测试结果如表1所示。
实施例6
按照以下方法制备水性环氧树脂组合物:
分别准备A、B组分:
B组分:将68g水性环氧树脂,15g水,17g气相二氧化硅CABOT TS-530混合均匀。
将A、B组分按照质量比1:2混合均匀(总量500g),得到水性环氧树脂组合物,其性能测试结果如表1所示。
实施例7
按照以下方法制备水性环氧树脂组合物:
分别准备A、B组分:
B组分:将82g水性环氧树脂,5g水,13g氢化蓖麻油混合均匀。
将A、B组分按照质量比1:4混合均匀(总量500g),得到水性环氧树脂组合物,其性能测试结果如表1所示。
实施例8
按照以下方法制备水性环氧树脂组合物:
分别准备A、B组分:
将A、B组分按照质量比1:2混合均匀(总量500g),得到水性环氧树脂组合物,其性能测试结果如表1所示。
对比例1
对比例2
采用实施例2的方法制备水性环氧树脂组合物,不同之处在于,用间苯二甲胺替换A组分中的环保型有机胺1#,该组环氧树脂组合物的性能测试结果如表1所示。
对实施例5-8以及对比例1、2制备的水性环氧树脂组合物进行表干时间、硬度、耐热氧老化性能进行测试,测试结果如表1所示:
表1环氧树脂组合物的性能测试结果
表干时间/min | 硬度/邵D | Tg/℃ | |
实施例5 | 41 | 84 | 125 |
实施例6 | 43 | 85 | 126 |
实施例7 | 45 | 85 | 126 |
实施例8 | 42 | 83 | 122 |
对比例1 | 210 | 58 | 61 |
对比例2 | 293 | 89 | 135 |
结果分析:
实施例5-8使用本发明制备的环保型有机胺制备水性环氧树脂组合物,对比例1-2采用其他水性胺类固化剂制备环氧树脂组合物。由表1可知,相比对比例1-2,实施例5-8的表干时间大大缩短,表干速度显著提升,这是因为,脂环胺4,4'-二氨基二环己基甲烷经胺丙基化后,引入了脂肪胺链段,N-H参与环氧树脂固化反应的位阻减小,反应活性提高,因而表干速度加快。
玻璃化转变温度Tg可以表征环氧树脂组合物的耐热氧老化性能,Tg越高,耐热氧老化性能越好。由表1可知,在4个具体实施方式举例中,实施例5-8的耐热氧老化性能同样具有优势。
此外,实施例5-8的硬度也适中。
综合来看,本发明制备的环保型有机胺,适用于水性环氧树脂美缝剂体系,做固化剂制备出的美缝剂产品,表干速度快,硬度高,耐热氧老化性能好,综合性能优异。
以上所述仅是本发明的优选实施方式,应当指出,对于本领域技术的普通技术人员,在不脱离本发明方法的前提下,还可以做出若干改进和补充,这些改进和补充也应视为本发明的保护范围。
Claims (9)
1.一种环保型有机胺的制备方法,其特征在于,所述方法采用油性疏水胺与卤代腈进行取代反应,继续加氢,得到目标产物环保型有机胺。
2.根据权利要求1所述的制备方法,其特征在于,所述油性疏水胺为无水溶性的胺或水中常温溶解度≤10wt%的胺,优选4,4'-二氨基二环己基甲烷、二环己胺、甲基环己二胺、苯胺、对氨基二苯胺、邻氨基二苯胺、己胺、己二胺、庚胺、辛胺、壬胺中的一种或多种;
和/或,所述卤代腈为C2-C12的卤代腈,优选氯乙腈、溴乙腈、碘乙腈、3-氯丙腈、3-溴丙腈、3-碘丙腈、4-氯丁腈、4-溴丁腈、4-碘丁腈、5-氯戊腈、5-溴戊腈、5-碘戊腈中的一种或多种;
优选地,所述油性疏水胺与卤代腈的摩尔比为1:(0.8~2.1),优选1:(0.9~1.9)。
3.根据权利要求1或2所述的制备方法,其特征在于,所述取代反应中,催化剂为一价铜盐CuX,其中,X为Cl、Br、I、AcO中的一种;
优选地,催化剂用量为卤代腈加入量的0.13-0.17mol%;
和/或,所述取代反应中,溶剂为芳烃,优选甲苯和/或二甲苯;
优选地,溶剂用量为卤代腈用量的60-80wt%;
和/或,所述取代反应中,反应温度为70-80℃;
和/或,所述加氢反应中,采用底物质量1.7-2.3wt%的雷尼镍催化剂、5.8-6.2MPa氢气、反应温度95-101℃。
5.一种环保型有机胺的用途,所述有机胺采用权利要求1-3中任一项所述的制备方法制备获得,或为权利要求4所述的有机胺,其特征在于,所述有机胺可作为助剂应用于工程材料的水性体系产品,优选作为助剂应用于高分子材料、复合材料的水性体系产品。
9.一种水性环氧树脂组合物的用途,所述组合物为权利要求6-8中任一项所述的水性环氧树脂组合物,其特征在于,所述组合物用于高档环保美缝剂、接缝王,水性环氧彩砂,透水砖。
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