CN111575125B - 一种用于列车集便器的清洗剂及其制备方法 - Google Patents
一种用于列车集便器的清洗剂及其制备方法 Download PDFInfo
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- CN111575125B CN111575125B CN202010315368.2A CN202010315368A CN111575125B CN 111575125 B CN111575125 B CN 111575125B CN 202010315368 A CN202010315368 A CN 202010315368A CN 111575125 B CN111575125 B CN 111575125B
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- cleaning agent
- parts
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- cleaning
- acid
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- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 5
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 claims abstract description 5
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- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 5
- OTPBAANTTKRERC-UHFFFAOYSA-N benzyl(dodecyl)azanium;chloride Chemical compound Cl.CCCCCCCCCCCCNCC1=CC=CC=C1 OTPBAANTTKRERC-UHFFFAOYSA-N 0.000 claims abstract description 5
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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Abstract
本发明提供一种用于列车集便器的清洗剂及其制备方法和应用。所述清洗剂pH=2‑4,以所述清洗剂的总质量为100份,包括如下质量份的组分:甲基甘氨酸二乙酸三钠6‑8质量份,酒石酸钾钠4‑8质量份,水解聚马来酸酐3‑7质量份,丙烯酸‑丙烯酸酯‑膦酸‑磺酸盐四元共聚物12‑16质量份,二乙烯三胺五乙酸铵2‑4质量份,聚天冬氨酸15‑22质量份,十二烷基苄基氯化铵0.5‑2质量份,脂肪酸甲酯乙氧基化物0.5‑2质量份,pH调节剂2‑8质量份,杀菌剂0.1‑0.3质量份,去离子水余量。本发明的组合物具有清洗效率高、无腐蚀性、安全性好的特点。
Description
技术领域
本发明属于清洁剂领域,具体涉及一种用于列车集便器的清洗剂及其制备方法。
背景技术
目前,中国动车组保有量已经达到2500列左右,高铁已成为人们出行的重要交通工具之一。伴随高速铁路的发展,高铁设施的清洗与防护问题越来越得到重视,高铁动车组集便器的清洗和维护是其中的重要环节之一。目前高铁动车组上装配的集便器包括不锈钢构成的主体(见图1)和橡胶密封圈等附件。通常,高铁动车组集便器每年需用清洗剂彻底清洗2~3次。最初的强效集便器清洗剂是从国外引进的强酸性清洗剂,主要成分是包括4%硫酸和6%磷酸的混合物。这种清洗剂虽然清洗效果较好,但是对集便器的主体材料不锈钢以及附件橡胶密封圈等都有严重腐蚀,而且也会危害人体及环境。
现有技术中已经出现了弱酸性清洗剂,一般主要由草酸或柠檬酸组成。弱酸性清洗剂虽然相对安全,但在清洗过程中需浸泡24h才能达到良好效果。由于高铁列车使用频率高、车次密集、停靠时间短,实际清洗作业时间受列车出入库时间的限制,集便器的清洗不得不在尽可能短的时间内完成。因此,已有的弱酸清洗剂的清洗效率不能充分满足现场作业需求。
李先伟等报道了一种高铁列车集便器专用清洗剂,主要由多种对金属腐蚀性小,对人体皮肤刺激性小的污垢分解剂、络合剂、缓蚀剂、香精等复配而成。该清洗剂的工作原理为:清洁剂中的污垢分解剂可以与尿垢中碳酸钙、磷酸镁铵、磷酸钙、磷酸镁、尿酸铵、草酸钙等不溶性成分发生化学反应,使之变为可溶性的钙盐和镁盐被水冲走;络合剂可以加速分解反应的进行;香精起到遮盖异味的作用。经该清洁剂清洗1小时后,能使集便器管路中积存的污垢基本被清洗干净。同时该清洁剂对不锈钢和三元乙丙橡胶(集便器管路接头密封件原料)的腐蚀性小(李先伟,等.高铁列车集便器专用清洗剂的研制及应用[J].铁路节能环保与安全卫生,2018年,Vol.8(5):244-247)。但是该文献中没有公开这种清洁剂的具体组成。
发明内容
为了克服现有技术的不足,本发明提供一种用于列车集便器的清洗剂。该清洗剂清洗效率高,不腐蚀集便器构成材料,对人体及环境危害小,具有高效、安全、环保的特点,能够适应铁路列车,特别是高铁动车组列车清洗的要求。
为了实现上述技术效果,本发明采用了如下的技术方案:
一种用于列车集便器的清洗剂,pH=2~4,以所述清洗剂的总质量为100份,包括如下质量份的组分:
优选地,以所述清洗剂的总质量为100份,所述清洗剂包括如下质量份的组分:
优选地,所述水解局马来酸酐的固含量≥45%,溴值≤80毫克/克。
优选地,所述pH调节剂选自三乙醇胺或氨水。
所述氨水为含氨(NH3)25wt.%~28wt.%的水溶液,即工业氨水。
优选地,所述杀菌剂选自溴乙酸苄酯和吡啶硫酮钠中的一种或任意比例的两种。
优选地,所述清洗剂还包括0.05-0.1质量份的香精。
优选地,所述清洗剂还包括0.05-0.1质量份的色素。
本发明还有一个目的在于提供上述清洗剂的制备方法,包括:
I.按照配比称取各组分;
II.取部分去离子水,边搅拌边加入甲基甘氨酸二乙酸三钠、二乙烯三胺五乙酸铵、酒石酸钾钠、水解聚马来酸酐、丙烯酸-丙烯酸酯-膦酸-磺酸盐四元共聚物、聚天冬氨酸,搅拌均匀;
III.搅拌下再依次加入十二烷基苄基氯化铵、杀菌剂、脂肪酸甲酯乙氧基化物及剩余配方量的去离子水,搅拌均匀;
IV.最后加入pH调节剂,调节PH值2-4之间,搅拌均匀,即得。
优选地,所述清洗剂在带有搅拌装置的设备中制备,搅拌转速优选为600-800rpm。
优选地,所述步骤III中,还包括搅拌下加入香精和/或色素。
本发明还有一个目的在于提供上述清洗剂或按照上述制备方法制备得到的清洗剂在清洗收集人或动物排泄物的设备中的应用。
具体地,所述收集人或动物排泄物的设备包括交通工具的集便器、公共卫生间的化粪池、马桶或蹲便器。
优选地,所述交通工具选自铁路列车、客运巴士或飞机。
更优选地,所述铁路列车包括普通铁路客车或高铁动车组。
本说明书中,各组分所述质量份数是指各组分之间的相对用量配比,而不是实际质量数。1质量份可以是任何质量数。如根据生产制备实际情况,1质量份可以是1g、10g、100g、500g、1kg、2kg、3kg、4kg、5kg、6kg、7kg、8kg、9kg、10kg,等等。
集便器等积留的污垢主要有碳酸钙、磷酸镁铵、磷酸钙、磷酸镁、尿酸铵和草酸钙等。本发明提供的清洗剂通过各组分之间的协同作用,对上述污垢起到了高效的清洗作用。
本发明通过采用具有较强螯合缓冲性的甲基甘氨酸二乙酸三钠代替常规无机酸或有机酸,复配丙烯酸-丙烯酸酯-膦酸-磺酸盐四元共聚物,具有较强的溶解、分散作用,能有效剥离、溶解集便器内的碳酸钙、磷酸镁铵、磷酸钙、磷酸镁、尿酸铵、草酸钙等不溶性成分。
酒石酸钾钠可在水中可以鳌合大多数二价和三价金属离子。二乙烯三胺五乙酸铵和聚天冬氨酸有较好的协同效应,可减少Ca和Mg及Si的沉积。溴类杀菌剂可快速杀灭藏匿在污垢中的及吸附在高分子材料橡胶表面的,细菌繁殖体、芽胞、病毒、结核杆菌和真菌等微生物,并祛除异味。
现有技术的集便器清洗剂多采用无机酸、有机酸和酸洗缓蚀剂。本发明的集便器清洗剂不添加缓蚀剂,彻底消除了因酸洗时缓蚀剂失效、缓蚀剂乳化不均或操作及其它突发因素对设备造成的过腐蚀;清洗时真正达到安全无腐蚀。
此外,本发明采用十二烷基苄基氯化铵与脂肪酸甲酯乙氧基化物复配,使其具有低泡沫、遇冷水不宜凝胶,溶解迅速,特别是冬季不出现凝固等特点。
附图说明
以下结合附图对本发明做进一步说明。
图1的照片示出了高铁动车组的集便器的不锈钢的主体结构。
图2的照片示出了实施例3的清洗剂在溶污能力测试中,对测试污垢的溶解能力,图中左侧示出了溶污前的状况,右侧示出了溶污后的状况。
图3的照片示出了实施例3的清洗剂实际应用的情况,图中,上面的照片示出了工作人员正在进行集便器排污管连接作业,左下的照片示出了溶垢前的集便器(局部),右下的照片示出了溶垢后该部位的情况。
具体实施方式
以下参照具体的实施例来说明本发明。本领域技术人员能够理解,这些实施例仅用于说明本发明,其不以任何方式限制本发明的范围。
下述实施例中的实验方法,如无特殊说明,均为常规方法。下述实施例中所用的原料、试剂材料等,如无特殊说明,均为市售购买产品。
实施例1~3一种集便器清洗剂
各实施例所述集便器清洗剂的原料组成见表1(10kg=1重量份),按照如下方法制备:
I.按照表1所示配比称取各组分;
II.取部分去离子水,边搅拌边加入甲基甘氨酸二乙酸三钠、二乙烯三胺五乙酸铵、酒石酸钾钠、水解聚马来酸酐、丙烯酸-丙烯酸酯-膦酸-磺酸盐四元共聚物、聚天冬氨酸,搅拌均匀;
III.搅拌下再依次加入十二烷基苄基氯化铵、杀菌剂、脂肪酸甲酯乙氧基化物及剩余配方量的去离子水,搅拌均匀;
IV.最后加入pH调节剂,调节PH值2-4之间,搅拌均匀,即得。
对比例1~3一种集便器清洗剂
各对比例所述集便器清洗剂的原料组成见表1,按照实施例1相同的方法和步骤制备。
表1实施例1~3和对比例1~3的集便器清洗剂的原料组成(单位:kg)
测试例各实施例和对比例的清洗剂性能测定
1.清洗剂稳定性
按照《金属清洗剂GB/T35759-2017》规定的稳定性测试方法对各清洗剂进行外观稳定性测定。结果见表2。
2.溶污能力
按照《工业设备化学清洗中除垢率和洗净率测试方法GB/T25148-2010》中收载的方法(4.1.2容积法)对各个清洗剂的溶污能力进行测定。结果见表2。
表2各实施例和对比例的清洗剂稳定性及对溶污能力
组别 | 溶液外观 | 溶垢时间,min | 溶垢率,% |
实施例1 | 清澈 | 120 | 92 |
实施例2 | 清澈 | 120 | 97 |
实施例3 | 清澈 | 120 | 96 |
对比例1 | 上部乳白、底部沉淀 | 180 | 83 |
对比例2 | 清澈 | 180 | 65 |
对比例3 | 沉淀 | 180 | 82 |
表2的数据示出:本发明的各清洗剂外观均清澈,稳定性好。对比例1和3的清洗剂则稳定性差。同时,本发明所述清洗剂的溶污时间较各对比例都短,溶污率也显著高于对比例的清洗剂。
图2示出了以实施例3的清洗剂为代表的本发明的清洗剂进行溶污能力测试时,溶污前后对比。从图中可以看出,经过实施例3的清洗剂清洗,污垢基本完全被清除干净。
3.对高分子材料的影响
取试片(25mm×30mm×2mm)精密称重(试片的材质见表3所示),然后将100克集便器清洗剂和试片(25mm×30mm×2mm)放入玻璃杯中,加热至60℃并保温60分钟,然后将试片从清洗剂中取出,用水冲洗净,105±1℃,鼓风干燥40分钟,精密称重,测量试片的三维尺寸,计算浸泡前后试片质量和体积的变化率(%)。测定试片前后清洗剂的质量,按照如下公式计算清洗剂中树脂成分的溶出率(%):
树脂溶出率φ=M2/M1×100%
其中,M1:浸泡试片前清洗剂的质量,
M2:浸泡试片后清洗剂的质量。
每种清洗剂平行测定三次,各项结果取平均值,记录于表3和表4中。
表3实施例1~3的清洗剂对高分子材料的影响
表4对比例1~3的清洗剂对高分子材料的影响
表3和表4的数据示出,在测定条件下,本发明所述清洗剂的各个组分对硬质和软质氯乙烯、聚丙烯、丙烯酸树脂和三元乙丙橡胶等高分子材料制品基本没有腐蚀性。
4.对金属材料的腐蚀
按照《工业设备化学清洗质量标准HG/T 2387-2016》收载的方法测定本发明的清洗剂对金属材料的腐蚀。结果见表5。
表5实施例1~3的清洗剂对金属的腐蚀
表5的数据示出,本发明所述清洗剂对碳钢、不锈钢等金属材料基本无腐蚀,不会对高铁集便器的主要部件造成不利影响,影响其使用寿命。
实施例4本发明清洗剂的实际应用
采用实施例3的配方及方法制备的清洗剂对运行在京沪线上CRH380动车组的集便器进行清洗。清洗过程为:
1.将集便器内部污物排空,每个集便器使用10KG清洗剂。
2.将清洗剂用水稀释,配置成10wt.%至30wt.%的溶液,加入到集便器蓄污池中,静置,待充分反应2小时。
3.排空集便器内清洗液及污垢混合物,用清水冲洗两次,结束清洗,清洗总时长为4小时。
清洗前集便器如图3左下图照片示,清洗后如图3右下照片所示。经过本发明的清洗剂的清洗,集便器上积留的绝大部分污垢都被清除,除垢效果明显。
总之,本发明提供了一种用于列车集便器的清洗剂,尤其适用于对清洗时限有要求的高铁动车组列车,本发明所述的清洗剂清洗能力强,同时对金属、高分子材料等的腐蚀作用小,环境友好。
Claims (14)
3.根据权利要求1或2所述的清洗剂,其特征在于,所述水解聚马来酸酐的固含量≥45%,溴值≤80毫克/克。
4.根据权利要求1或2所述的清洗剂,其特征在于,所述pH调节剂选自三乙醇胺或氨水。
5.根据权利要求1或2所述的清洗剂,其特征在于,所述杀菌剂选自溴乙酸苄酯和吡啶硫酮钠中的一种或任意比例的两种。
6.根据权利要求1或2所述的清洗剂,其特征在于,所述清洗剂还包括0.05-0.1质量份的香精。
7.根据权利要求1或2所述的清洗剂,其特征在于,所述清洗剂还包括0.05-0.1质量份的色素。
8.根据权利要求6所述的清洗剂,其特征在于,所述清洗剂还包括0.05-0.1质量份的色素。
9.权利要求1至8中任一项所述清洗剂的制备方法,包括:
I.按照配比称取各组分;
II.取部分去离子水,边搅拌边加入甲基甘氨酸二乙酸三钠、二乙烯三胺五乙酸铵、酒石酸钾钠、水解聚马来酸酐、丙烯酸-丙烯酸酯-膦酸-磺酸盐四元共聚物、聚天冬氨酸,搅拌均匀;
III.搅拌下再依次加入十二烷基苄基氯化铵、杀菌剂、脂肪酸甲酯乙氧基化物及剩余配方量的去离子水,搅拌均匀;
IV.最后加入pH调节剂,调节PH值2-4之间,搅拌均匀,即得。
10.根据权利要求9所述的制备方法,其特征在于,所述清洗剂在带有搅拌装置的设备中制备,搅拌转速为600-800rpm。
11.根据权利要求9或10所述的制备方法,其特征在于,所述步骤III中,还包括搅拌下加入香精和/或色素。
12.权利要求1至8中任一项所述清洗剂或按照权利要求9至11中任一项所述制备方法制备得到的清洗剂在清洗收集人或动物排泄物的设备中的应用,所述设备是交通工具的集便器和/或公共卫生间的化粪池。
13.根据权利要求12所述的应用,其特征在于,
所述交通工具选自铁路列车、客运巴士或飞机。
14.根据权利要求13所述的应用,其特征在于,所述铁路列车包括普通铁路客车或高铁动车组。
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