CN115108947A - 去污力强烷基聚氧乙烯醚苯磺酸及其盐与应用 - Google Patents

去污力强烷基聚氧乙烯醚苯磺酸及其盐与应用 Download PDF

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CN115108947A
CN115108947A CN202210549221.9A CN202210549221A CN115108947A CN 115108947 A CN115108947 A CN 115108947A CN 202210549221 A CN202210549221 A CN 202210549221A CN 115108947 A CN115108947 A CN 115108947A
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polyoxyethylene ether
alkyl
benzene
sulfonic acid
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邓龙辉
卢志敏
刘保
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Guangzhou Langqi Daily Necessities Co ltd
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Guangzhou Lonkey Industrial Co ltd
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Abstract

本发明公开了一种去污力强烷基聚氧乙烯醚苯磺酸及其盐与用途。其中所述去污力强烷基聚氧乙烯醚苯磺酸的结构通式如下：
Figure DDA0003653903810000011
其中，R为C8‑C16直链烷基或支链烷基，n选自7～9。所述烷基聚氧乙烯醚苯磺酸所制得织物洗涤剂既酶活力稳定又在低浓度活性物条件下去污力强。

Description

去污力强烷基聚氧乙烯醚苯磺酸及其盐与应用
技术领域
本发明属于表面活性剂领域，具体地，涉及一种去污力强烷基聚氧乙烯醚苯磺酸及 其盐与应用。
背景技术
烷基苯磺酸(
Figure BDA0003653903800000011
其中R＝C11～C13)，常用作洗涤剂的原料，生产烷基苯磺酸的钠盐、铵盐等。烷基苯磺酸盐是烷基苯磺酸的中和产物，是一种重要的阴离子 表面活性剂，烷基苯磺酸盐主要包括直链烷基苯磺酸盐(LAS)和支链烷基苯磺酸盐 (ABS)。
由于生物降解性差，支链烷基苯磺酸盐已逐渐被直链烷基苯磺酸盐所取代。直链烷 基苯磺酸盐的去污力强、起泡能力和泡沫稳定性好，并且在酸性、碱性甚至氧化剂溶液中都具有较好的稳定性，而且其来源充足、制造工艺成熟、成本低，是一种优良的洗涤 剂和发泡剂。但是，直链烷基苯磺酸盐也存在一些缺陷，例如对水的硬度敏感，遇到硬 水洗涤能力迅速降低，易与水中的钙镁离子反应生成有机沉积物并残留在衣物上，有机 沉积物会降低织物的性能，例如增大织物的疏水性，降低毛细效应，降低衣物的气候调 节性，加剧织物存留污迹，导致其用量和适用范围受限。
中国专利申请(公开号CN108300607A)公开了一种抗硬水洗衣粉，包括以下重量份原料：直链烷基苯磺酸钠35-50、烷基糖苷22-25、十二烷基二甲基甜菜碱1.5-3、复合 二硅酸钠6-8、过碳酸钠15-25、α-脂肪酸甲酯磺酸钠7-9、脂肪醇聚氧乙烯醚AEO-9 2.5-3.5、酶0.5-0.9、香精0.1-0.15。但其是利用大量的耐硬水的表面活性剂，如烷基糖 苷、脂肪醇聚氧乙烯醚AEO-9、α-脂肪酸甲酯磺酸钠，以及碱性物质过碳酸钠，来弥补 不耐硬水的十二烷基苯磺酸钠的缺陷，在高表面活性剂浓度下才能发挥出一般浓度表面 活性剂的效果，造成洗涤剂有效成分的功效不能完全发挥，导致洗涤剂有效成分的浪费， 且不曾提及在低浓度活性物条件下的去污力如何。还有该申请的洗衣粉使用大量烷基糖 苷，烷基糖苷是液体的，所做出的洗衣粉会像严重结块，不能正常使用。
因此，需要制备一种酶活力稳定又在低浓度活性物条件下去污力强的烷基聚氧乙烯 醚苯磺酸及其盐与洗涤产品。
发明内容
为了解决现有技术中存在的上述技术问题，本发明提供一种酶活力稳定又在低浓度 活性物条件下去污力强的烷基聚氧乙烯醚苯磺酸。
本发明的技术目的是通过以下方案来实现的：
一种去污力强烷基聚氧乙烯醚苯磺酸，结构通式如下：
Figure BDA0003653903800000021
其中，R为C8-C16直链烷基或支链烷基，n选自7～9。
本发明的另一技术目的是提供一种去污力强烷基聚氧乙烯醚苯磺酸的制备方法，包 括以下步骤：苯和脂肪醇聚氧乙烯醚在催化剂的作用下生成烷基苯聚氧乙烯醚，所述烷基苯聚氧乙烯醚与三氧化硫磺化反应后即得；优选地，所述脂肪醇聚氧乙烯醚的聚合度 n为7～9。
进一步地，本发明所述催化剂为负载金属SAPO-11分子筛，其添加量为苯质量3～5％ (优选为3.5～4.5％)，所述金属选自锆、锑、铅中的一种或两种以上；所述金属负载量为分子筛重量的1.0～2.5％；优选地，所述金属选自锆、锑、铅中的两种金属，其重量比 为(1:3)～(3:1)。
进一步地，本发明所述苯和脂肪醇聚氧乙烯醚反应温度为100～200℃，压力为2.0～4.0Mpa，时间为40～60min；优选地，所述苯和脂肪醇聚氧乙烯醚反应温度为 110～150℃，压力为2.5～3.5Mpa，50～60min。
进一步地，本发明所述苯与脂肪醇聚氧乙烯醚的物质的量比为(3～6):1；优选地，所 述苯与脂肪醇聚氧乙烯醚的物质的量比为(3.5～5.0):1。
进一步地，本发明所述烷基苯聚氧乙烯醚与三氧化硫磺化反应过程为：三氧化硫与 空气预混，然后烷基苯聚氧乙烯醚与三氧化硫-空气混合气体在磺化反应器内反应，老化，用循环冷却水对磺化反应器进行冷却；优选地，三氧化硫在三氧化硫-空气混合气 体中浓度为4～6vt％；优选地，烷基苯聚氧乙烯醚与三氧化硫的物质的量比为(1.02～1.04)：1；优选地，三氧化硫-空气混合气体的进气温度为44～54℃，磺化反应器出口处气体温 度为43～44℃。
本发明的另一技术目的是提供一种去污力强烷基聚氧乙烯醚苯磺酸盐，结构通式如 下：
Figure BDA0003653903800000022
其中，R为C8-C16直链烷基或支链烷基，n选自7或9，M选自：Na+、K+、NH4 +、C2H7NOH+、C4H11NO2H+、C6H15NO3H+、C3H9ONH+。
本发明的另一技术目的是提供一种去污力强烷基聚氧乙烯醚苯磺酸盐的制备方法， 包括以下步骤：
碱性溶液和上述的烷基聚氧乙烯醚苯磺酸经中和反应得到烷基聚氧乙烯醚苯磺酸 盐；其中，所述碱溶液选自氢氧化钠溶液、氢氧化钾溶液、氨水或醇胺。
本发明的另一技术目的是提供一种织物洗涤剂，以上述的烷基聚氧乙烯醚苯磺酸或 上述烷基聚氧乙烯醚苯磺酸盐为主要活性成分。
进一步地，本发明所述织物洗涤剂包括液体织物洗涤剂和粉体织物洗涤剂。
本发明采用上述技术解决方案所能达到的有益效果是：
本发明的烷基链经过乙氧基化以后，乙氧基链段的氧原子的电子对能对钙镁离子起 螯合作用，降低了钙镁离子对表面活性剂的负面作用，令表面活性剂的抗硬水能力增加； 估计表面活性剂分子中的乙氧基链段能降低表面张力，降低表面活性剂的临界胶束浓度，令表面活性剂在低浓度下都具有良好的去污力；同时，可能是由于乙氧基化链段的 存在，对离子性表面活性剂的电荷起到分散作用，且苯环的存在，令电荷的分散作用更 明显，因此，电荷对酶的作用减弱，令洗涤剂中的酶得到了更好的稳定作用。
本发明烷基聚氧乙烯醚苯磺酸盐的洗涤产品酶活力稳定、低浓度活性物条件下去污 力强。
具体实施方式
以下通过具体较佳实施例对本发明作进一步详细说明，但本发明并不仅限于以下的 实施例。本发明所述烷基聚氧乙烯醚苯磺酸及其盐不但可以应用于粉体织物洗涤剂上，还可以应用在液体织物洗涤剂等其它洗护用品上。
一、烷基聚氧乙烯醚苯磺酸及其盐的制备
实施例1
1.1、烷基苯聚氧乙烯醚的制备
将物质的量比为3：1的苯和脂肪醇聚氧乙烯醚(R为C10H21直链烷基，聚合度n值 为9)混合，加入苯质量5％的负载金属SAPO-11分子筛(负载量为SAPO-11分子筛重 量的1％，负载金属为Pb和Zr，其质量比为1：3)，混匀后控制温度为100～105℃，压 强为3.4～4.0Mpa，反应40～45min，得到烷基苯聚氧乙烯醚，经检测，脂肪醇聚氧乙烯 醚的转化率为75％。
1.2、烷基聚氧乙烯醚苯磺酸的制备
将三氧化硫与空气预混待用(三氧化硫的浓度为5vt％)；将1.1部分制得的烷基苯聚 氧乙烯醚置于膜式磺化反应器内，通入温度为50℃的三氧化硫-空气混合气体，磺化反应器内烷基苯聚氧乙烯醚与三氧化硫的物质的量比为(1.02-1.04)：1，反应过程中磺化反应器的冷却采用循环冷却水，磺化反应器出口处的气体温度为45℃，反应完成后，经老 化得到实施例1的烷基聚氧乙烯醚苯磺酸。
实施例1的烷基聚氧乙烯醚苯磺酸的结构式如下式IIⅠ所示，
Figure BDA0003653903800000041
其中R为C10H21直链烷基，n＝9。
1.3、烷基聚氧乙烯醚的苯磺酸钾的制备
实施例1的烷基聚氧乙烯醚苯磺酸钾的制备方法包括以下步骤：
在搅拌的条件下，向浓度为20wt％氢氧化钾溶液中加入实施例1.2所制得烷基聚氧 乙烯醚苯磺酸(氢氧化钾与烷基聚氧乙烯醚苯磺酸的物质的量比为1:1)，中和反应完成后，即得烷基聚氧乙烯醚苯磺酸钾，其反应式如下：
Figure BDA0003653903800000042
实施例2
2.1、烷基苯聚氧乙烯醚的制备
将物质的量比为6：1的苯和脂肪醇聚氧乙烯醚(R为1-甲基十一烷基，聚合度n值为7)混合，加入苯质量3％的负载金属SAPO-11分子筛(负载量为SAPO-11分子筛重量 的2.5％，负载金属为Sb和Zr，二者的质量比为3:1)，混匀后控制温度为195～200℃， 压强为2.0～2.2Mpa，反应42～46min，得到烷基苯聚氧乙烯醚，经检测，脂肪醇聚氧乙 烯醚的转化率为70％。
2.2、烷基聚氧乙烯醚苯磺酸的制备
实施例2所述烷基聚氧乙烯醚苯磺酸采用实施例1的制备方法制得,其结构式如式ⅠV所示，
Figure BDA0003653903800000043
其中，R为C12H25支链烷基，n＝7。
2.3、烷基聚氧乙烯醚的苯磺酸三乙醇胺的制备
实施例2的烷基聚氧乙烯醚苯磺酸三乙醇胺的制备方法包括以下步骤：
在搅拌的条件下,向三乙醇胺中加入实施例2的2.2部分所制得烷基聚氧乙烯醚苯磺酸(三乙醇胺与烷基聚氧乙烯醚苯磺酸的物质的量比为1:1)，中和反应完成后，即得 烷基聚氧乙烯醚苯磺酸三乙醇胺，其反应式如下：
Figure BDA0003653903800000051
实施例3
3.1、烷基苯聚氧乙烯醚的制备
将物质的量比为3.5：1的苯和脂肪醇聚氧乙烯醚(R为C16H33直链烷基，聚合度n 值为7)混合，加入苯质量3.5％的负载金属SAPO-11分子筛(负载量为SAPO-11分子筛 重量的2％，负载金属为Zr和Sb,二者的质量比为1:2)，混匀后控制温度为145～150℃， 压强为2.5～2.7Mpa，反应55～60min，得到烷基苯聚氧乙烯醚，经检测，脂肪醇聚氧乙 烯醚的转化率为45％。
3.2、烷基聚氧乙烯醚苯磺酸的制备
实施例3所述烷基聚氧乙烯醚苯磺酸采用实施例1的制备方法制得，其结构通式如下式V所示，
Figure BDA0003653903800000052
其中，R为C16H33直链烷基，n＝7。
3.3、烷基聚氧乙烯醚的苯磺酸铵的制备
实施例3的烷基聚氧乙烯醚苯磺酸铵的制备方法包括以下步骤：
在搅拌的条件下，向氨水中加入实施例3的3.2部分所制得烷基聚氧乙烯醚苯磺酸(氨水与烷基聚氧乙烯醚苯磺酸的物质的量比为1:1)，中和反应完成后，即得烷基聚氧 乙烯醚苯磺酸铵，其反应式如下：
Figure BDA0003653903800000053
实施例4
4.1、烷基苯聚氧乙烯醚的制备
将物质的量比为5：1的苯和脂肪醇聚氧乙烯醚(R为C14H29直链烷基，聚合度n值 为4)混合，加入苯质量4％的负载金属SAPO-11分子筛(负载量为SAPO-11分子筛重 量的2％，负载金属为Sb和Pb，二者的质量比为2：1)，混匀后控制温度为135～140℃， 压强为3.0～3.2Mpa，反应50～55min，得到烷基苯聚氧乙烯醚，经检测，脂肪醇聚氧乙 烯醚的转化率为46％。
4.2、烷基聚氧乙烯醚苯磺酸的制备
实施例4所述烷基聚氧乙烯醚苯磺酸采用实施例1的制备方法制得，其结构式如下式VⅠ所示:
Figure BDA0003653903800000061
其中，R为C14H29直链烷基，n＝4。
4.3、烷基聚氧乙烯醚的苯磺酸异丙醇胺的制备
实施例4的烷基聚氧乙烯醚苯磺酸异丙醇胺的制备方法，包括以下步骤：
在搅拌的条件下，向异丙醇胺中加入实施例4的4.2部分所制得烷基聚氧乙烯醚苯磺酸(异丙醇胺与烷基聚氧乙烯醚苯磺酸的物质的量比为1:1)，中和反应完成后，即得 烷基聚氧乙烯醚苯磺酸异丙醇胺，其反应式如下：
Figure BDA0003653903800000062
实施例5
5.1、烷基聚氧乙烯醚的制备
将物质的量比为4：1的苯和脂肪醇聚氧乙烯醚(R为C4H17直链烷基，聚合度n值 为9)混合，加入苯质量4.5％的负载金属SAPO-11分子筛(负载量为SAPO-11分子筛重 量的1.2％，负载金属为Zr和Pb，二者的质量比为1:1)，混匀后控制温度为110～115℃， 压强为3.3～3.5Mpa，反应52～54min，得到烷基苯聚氧乙烯醚，经检测，脂肪醇聚氧乙 烯醚的转化率为44％。
5.2、烷基聚氧乙烯醚苯磺酸的制备
所述烷基聚氧乙烯醚苯磺酸采用实施例1的制备方法制得，其结构式如下式VIⅠ所示，
Figure BDA0003653903800000063
其中，R为C4H17直链烷基，n＝9。
5.3、烷基聚氧乙烯醚的苯磺酸钠的制备
实施例5的烷基聚氧乙烯醚苯磺酸钠的制备方法包括以下步骤：
在搅拌的条件下，向浓度为20wt％氢氧化钠溶液中加入实施例5的5.2部分所制得烷基聚氧乙烯醚苯磺酸(氢氧化钠与烷基聚氧乙烯醚苯磺酸的物质的量比为1:1)，中和 反应完成后，即得烷基聚氧乙烯醚苯磺酸钠，其反应式如下：
Figure BDA0003653903800000071
实施例6
6.1、烷基苯聚氧乙烯醚的制备
将物质的量比为3.4：1的苯和脂肪醇聚氧乙烯醚(R为C12H25直链烷基，聚合度n 值为9)混合，加入苯质量4.2％的负载金属SAPO-11分子筛(负载量为SAPO-11分子筛 重量的1.4％，负载金属为Zr和Pb，二者的质量比为3：2)，混匀后控制温度为120～125℃， 压强为3.1～3.3Mpa，反应50～55min，得到烷基苯聚氧乙烯醚，经检测，脂肪醇聚氧乙 烯醚的转化率为42％。
6.2、烷基聚氧乙烯醚苯磺酸的制备
实施例6所述烷基聚氧乙烯醚苯磺酸采用实施例1的制备方法制得，其结构式如下式VIⅠ所示，
Figure BDA0003653903800000072
其中，R为C12H25直链烷基，n＝9。
6.3、烷基聚氧乙烯醚的苯磺酸单乙醇胺的制备
实施例6的烷基聚氧乙烯醚苯磺酸单乙醇胺的制备方法包括以下步骤：
在搅拌的条件下向单乙醇胺中加入实施例6的6.2部分所制得烷基聚氧乙烯醚苯磺 酸(单乙醇胺与烷基聚氧乙烯醚苯磺酸的物质的量比为1:1)，中和反应完成后，即得烷基聚氧乙烯醚苯磺酸单乙醇胺，其反应式如下：
Figure BDA0003653903800000073
实施例7
7.1、烷基苯聚氧乙烯醚的制备
将物质的量比为4.5：1的苯和脂肪醇聚氧乙烯醚(R为C10H21直链烷基，聚合度n 值为7)混合，加入苯质量4.2％的负载金属SAPO-11分子筛(负载量为SAPO-11分子筛 重量的1.4％,负载金属为Pb和Sb,二者的质量比为3:2),制温度为120～125℃，压强为 3.1～3.3Mpa，反应51～57min，得到烷基苯聚氧乙烯醚，经检测，脂肪醇聚氧乙烯醚的转 化率为44％。
7.2、烷基聚氧乙烯醚苯磺酸的制备
所述烷基聚氧乙烯醚苯磺酸采用实施例1的制备方法制得，其结构式如式VIIⅠ所 示，
Figure BDA0003653903800000081
其中R为C10H21直链烷基，n＝7。
7.3、烷基聚氧乙烯醚的苯磺酸二乙醇胺的制备
实施例7的烷基聚氧乙烯醚苯磺酸二乙醇胺的制备方法包括以下步骤：
在搅拌的条件下向二乙醇胺中加入实施例6的6.2部分所制得烷基聚氧乙烯醚苯磺 酸(二乙醇胺与烷基聚氧乙烯醚苯磺酸的物质的量比为1:1)，中和反应完成后，即得烷基聚氧乙烯醚苯磺酸二乙醇胺，其反应式如下：
Figure BDA0003653903800000082
实施例8
8.1、烷基苯聚氧乙烯醚的制备
将物质的量比为3.2：1的苯和脂肪醇聚氧乙烯醚(R为3-甲基十三烷基支链烷基，聚合度n值为9)混合，加入苯质量3.2％的负载金属SAPO-11分子筛(负载量为SAPO-11 分子筛重量的1.1％，负载金属为Pb和Sb，二者的质量比为2：5)，混匀后控制温度为 160～165℃，压强为3.6～3.4Mpa，反应时间为42～44min，得到烷基苯聚氧乙烯醚，经检 测，脂肪醇聚氧乙烯醚的转化率为72％。
8.2、烷基聚氧乙烯醚苯磺酸的制备
所述烷基聚氧乙烯醚苯磺酸采用实施例1的制备方法制得，结构通式如式ⅠX所 示，
Figure BDA0003653903800000083
其中，R为C14H29支链烷基，n＝9。
8.3、烷基聚氧乙烯醚的苯磺酸钠的制备
实施例8的烷基聚氧乙烯醚苯磺酸钠的制备方法包括以下步骤：
在搅拌的条件下，向浓度为wt30％氢氧化钠溶液中加入实施例8的8.2部分所制得烷基聚氧乙烯醚苯磺酸(氢氧化钠与烷基聚氧乙烯醚苯磺酸的物质的量比为1:1)，中和 反应完成后，即得烷基聚氧乙烯醚苯磺酸钠，其反应式如下：
Figure BDA0003653903800000091
实施例9
9.1、烷基聚氧乙烯醚的制备
将物质的量比为5.5：1的苯和脂肪醇聚氧乙烯醚(R为4-甲基十五烷基支链烷基，聚合度n值为4)混合，加入苯质量4.4％的负载金属SAPO-11分子筛(负载量为SAPO-11 分子筛重量的2.3％，负载金属为Zr和Pb，二者的质量比为2.5：1)，混匀后控制温度 为175～140℃，压强为2.2～2.4Mpa，反应时间为43～49min，得到烷基苯聚氧乙烯醚，经 检测，脂肪醇聚氧乙烯醚的转化率为74％。
9.2、烷基聚氧乙烯醚苯磺酸的制备
所述烷基聚氧乙烯醚苯磺酸采用实施例1的制备方法制得，其结构式如式X所示，
Figure BDA0003653903800000092
其中，R为C16H33支链烷基，n＝4。
9.3、烷基聚氧乙烯醚的苯磺酸钾的制备
实施例9的烷基聚氧乙烯醚苯磺酸钾的制备方法包括以下步骤：
在搅拌的条件下向30％氢氧化钾溶液中加入实施例9的9.2部分所制得烷基聚氧乙 烯醚苯磺酸(氢氧化钾与烷基聚氧乙烯醚苯磺酸的物质的量比为1:1)，中和反应完成后， 即得烷基聚氧乙烯醚苯磺酸钾，其反应式如下：
Figure BDA0003653903800000093
二、织物洗涤剂的制备
1、粉体织物洗涤剂的配方及制备工艺
粉体织物洗涤剂的配方如下表1所示。
在配料锅中加入水，启动搅拌，先加入工业用氢氧化钠/氢氧化钾搅拌均匀，再加入 实施例1、5的烷基聚氧乙烯醚苯磺酸，搅拌至两者完全中和形成均匀浆状物，然后加 入全部纯碱(行业一般前配添加量大于等于总量的50％)、水玻璃、高分子助洗剂(聚 丙烯酸钠、改性聚丙烯酸钠或聚丙烯酸-马来酸钠)、羧甲基纤维素钠、荧光增白剂、 AES、AOS、总量的wt60％无水硫酸钠(行业一般前配添加量大于等于总量的wt60％)， 然后将浆料送至老化锅，高压泵输送老化锅浆料至喷雾干燥塔内，采用逆流式喷雾干燥 法对洗衣粉浆料进行干燥，得到粉体织物洗涤剂基粉。
浆料的总固体为70±5％，浆料温度为45～75℃，高压泵的输送压力为2.0～4.0Mpa， 喷雾干燥塔的热风进口温度为300～450℃，喷雾干燥塔的热风出口温度为40～150℃。 含洗衣粉基粉通过料仓，稳定下料至下方皮带系统，计量输送至后配滚筒设备中，与其 它后配原料(K12、MES、剩余纯碱、剩余无水硫酸钠、沸石、蛋白酶(还可以脂肪酶、 甘露聚糖酶、纤维素酶)、非离子表面活性剂例如AEO7、AEO9、XP-40、XP-70或 XL-40、香精)混合均匀，从滚筒出来的粉体经过包装得到粉体织物洗涤剂成品。
对照例1～9的粉体织物洗涤剂的制备工艺可以参考该实施例10～14的制备工艺。
2、液体织物洗涤剂的配方及制备工艺
液体织物洗涤剂的配方如下表2所示。
在配料锅中加入水，启动搅拌，先加入EDTA-4Na，再加入经计量的工业用氢氧化钠/氢氧化钾/醇氨搅拌均匀，再加入实施例8、9、4、6、2所述的烷基聚氧乙烯醚苯磺酸 或常规的十二烷基苯磺酸钠，搅拌至两者完全中和，然后根据配方需求加入其它表面活 性剂、多元醇、有机硅消泡剂、聚丙烯酸钠，搅拌均匀，加入氯化钠调整黏度，保证温 度在40℃以下，加入香精、防腐剂、蛋白酶，搅拌均匀，出锅。
Figure BDA0003653903800000111
Figure BDA0003653903800000121
Figure BDA0003653903800000131
三、效果测试
1、去污力测试
参照GB/T 13174-2021《衣料用洗涤剂去污力及循环洗涤性能的测定》，对表面活性剂进行去污力测试，在水硬度条件为250ppm的条件下，测试表面活性剂的浓度为0.03％和0.02％的去污力，表征表面活性剂在低浓度下的去污能力；在表面活性剂浓度为0.03％的条件下，测试水硬度条件为150ppm和400ppm的去污力，表征表面活性剂在高水硬 度条件下的去污力，以标准污布洗涤前后的白度差值表示表面活性剂的去污力。
表3实施例1产物、实施例3产物去污力效果测试
Figure BDA0003653903800000141
通过表3的测试结果可知，实施例1烷基聚氧乙烯醚苯磺酸钾和实施例3的烷基聚氧乙烯醚苯磺酸铵在低表面活性剂浓度0.02wt％下的去污力仍有较好的体现，其去污力明显高于相同浓度下的直链烷基苯磺酸钠；实施例1烷基聚氧乙烯醚苯磺酸钾和实施例 3烷基聚氧乙烯醚苯磺酸铵在水硬度条件高的情况下，仍能够保持就好的去污力，且无 论在水硬度低还是水硬度高的情况下，都有比常规直链十二烷基苯磺酸钠去污力更好。
参照GB/T 13174-2021《衣料用洗涤剂去污力及循环洗涤性能的测定》，对粉体织物洗涤剂实施例10～14以及对比例1～9进行去污力测试，根据配方的表面活性剂含量对样品的称样量进行调整，令测试去污力的样品溶液的表面活性剂浓度为0.03％，测试水 硬度条件为250ppm和400ppm，参比物为标准洗衣粉，其去污力为1.00。
Figure BDA0003653903800000151
通过表4的测试结果可知，实施例10～14的粉体织物洗涤剂去污力，无论是在250ppm硬水条件下，还是在400ppm硬水条件下，都比对比例1～9的去污力强，且水 硬度对实施例10～14的粉体织物洗涤剂的去污力的影响远低于对比例1～9的影响。
参照GB/T 13174-2021《衣料用洗涤剂去污力及循环洗涤性能的测定》，对液体织物洗涤剂实施例1～5以及液体织物洗涤剂对比例1～5进行去污力测试，根据配方的表面活性剂含量对样品的称样量进行调整，令测试去污力的样品溶液的表面活性剂浓度为0.03％，参比物为标准洗衣液，其去污力为1.00。
表5液体织物洗涤剂效果测试
Figure BDA0003653903800000161
从表5可见，应用本专利的烷基聚氧乙烯醚苯磺酸盐制备的液体织物洗涤剂产品实 施例1～5相对于对比例1～5，具有更好的去污力，经过40℃，4周的强化后，应用本专 利的烷基聚氧乙烯醚苯磺酸盐制备的液体织物洗涤剂产品对蛋白污布的去污力仍有较 好的保持，从另一个方面证明了蛋白酶能在配方中稳定存在。
2、酶活力
依照GB/T 13173-2004《表面活性剂洗涤剂试验方法》，蛋白酶以SAVINASE ULTRA16XL(诺维信)作为标准酶计算酶活力，结果以SAVINASE ULTRA 16XL的 百分含量表示。
测试过程：配制表面活性剂浓度为30％，丙二醇为10％，酶制剂含量为0.5％的溶液，余量为水，并对样品进行强化测试，强化条件为40℃，4周，分别测定强化前和强 化后的酶活力。
表6原料酶活力
Figure BDA0003653903800000162
Figure BDA0003653903800000171
表7液体织物洗涤剂酶活力
Figure BDA0003653903800000172
从表6和表7可见，本专利的烷基聚氧乙烯醚苯磺酸盐对酶有较好的稳定作用，经过长时间的高温强化，仍能够保持较好的活力，能够保证80％以上的酶活力，而应用了 本发明的烷基聚氧乙烯醚苯磺酸盐的液体织物洗涤剂，经过强化后，酶活力也得到较好 的保存，能够保证80％以上的酶活力，大大优于使用常规的十二烷基苯磺酸盐的配方。
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，故凡是未脱离本发明技术方案内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明技术方案的范围内。

Claims (10)

1.一种去污力强烷基聚氧乙烯醚苯磺酸，其特征在于，其结构通式如下：
Figure FDA0003653903790000011
其中，R为C8-C16直链烷基或支链烷基，n选自7～9。
2.一种权利要求1所述的去污力强烷基聚氧乙烯醚苯磺酸的制备方法，其特征在于，包括以下步骤：苯和脂肪醇聚氧乙烯醚在催化剂的作用下生成烷基苯聚氧乙烯醚，所述烷基苯聚氧乙烯醚与三氧化硫磺化反应后即得；优选地，所述脂肪醇聚氧乙烯醚的聚合度n为7～9。
3.根据权利要求2所述的制备方法，其特征在于，所述催化剂为负载金属SAPO-11分子筛，其添加量为苯质量3～5％，所述金属选自锆、锑、铅中的一种或两种以上；所述金属负载量为分子筛重量的1.0～2.5％；优选地，所述金属选自锆、锑、铅中的两种金属，其重量比为1:3～3:1。
4.根据权利要求2所述的制备方法，其特征在于，所述苯和脂肪醇聚氧乙烯醚反应温度为100～200℃，压力为2.0～4.0Mpa，时间为40～60min；优选地，所述苯和脂肪醇聚氧乙烯醚反应温度为110～150℃，压力为2.5～3.5Mpa，50～60min。
5.根据权利要求2所述的制备方法，其特征在于，所述苯与脂肪醇聚氧乙烯醚的物质的量比为(3～6):1；优选地，所述苯与脂肪醇聚氧乙烯醚的物质的量比为(3.5～5.0):1。
6.根据权利要求2所述的制备方法，其特征在于，所述烷基苯聚氧乙烯醚与三氧化硫磺化反应过程为：三氧化硫与空气预混，然后烷基苯聚氧乙烯醚与三氧化硫-空气混合气体在磺化反应器内反应，老化，用循环冷却水对磺化反应器进行冷却；优选地，三氧化硫在三氧化硫-空气混合气体中浓度为4～6vt％；优选地，烷基苯聚氧乙烯醚与三氧化硫的物质的量比为(1.02～1.04)：1；优选地，三氧化硫-空气混合气体的进气温度为44～54℃，磺化反应器出口处气体温度为43～44℃。
7.一种去污力强烷基聚氧乙烯醚苯磺酸盐，其特征在于，其结构通式如下：
Figure FDA0003653903790000012
其中，R为C8-C16直链烷基或支链烷基，n选自7或9，M选自：Na+、K+、NH4 +、C2H7NOH+、C4H11NO2H+、C6H15NO3H+、C3H9ONH+。
8.一种如权利要求7所述的去污力强烷基聚氧乙烯醚苯磺酸盐的制备方法，其特征在于，包括以下步骤：
碱性溶液和权利要求1所述的烷基聚氧乙烯醚苯磺酸经中和反应得到烷基聚氧乙烯醚苯磺酸盐；其中，所述碱溶液选自氢氧化钠溶液、氢氧化钾溶液、氨水或醇胺。
9.一种织物洗涤剂，其特征在于，其以权利要求1所述的烷基聚氧乙烯醚苯磺酸或权利要求7所述烷基聚氧乙烯醚苯磺酸盐为主要活性成分。
10.根据权利要求9所述的织物洗涤剂，其特征在于，其包括液体织物洗涤剂和粉体织物洗涤剂。
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