CN108659636A - 一种具有空气净化功能的涂料的制备方法 - Google Patents

一种具有空气净化功能的涂料的制备方法 Download PDF

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CN108659636A
CN108659636A CN201810656730.5A CN201810656730A CN108659636A CN 108659636 A CN108659636 A CN 108659636A CN 201810656730 A CN201810656730 A CN 201810656730A CN 108659636 A CN108659636 A CN 108659636A
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季红军
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Abstract

本发明公开了一种具有空气净化功能的涂料的制备方法,其技术要点是:首先,在水浴条件下,向一定量水溶液中,加入凹凸棒土、聚乙二醇、六水合硝酸镧及六水合硝酸钴,搅拌一段时间后,滴加一定质量浓度的液碱溶液,调节pH值至碱性,继续搅拌反应一段时间,经过滤得到滤液A和滤渣,滤渣经干燥、煅烧,制得复合物B;其次,在水浴条件下,向滤液A中,加入凹凸棒土、硫酸钛和氯化锌,调节pH至中性,搅拌反应一段时间后,经过滤、干燥、煅烧,制得复合物C;然后,将复合物B和C混合、研磨,制得复合物D;最后,向一定量乳液中,加入聚乙烯醇、黄原胶及复合物D,经搅拌研磨一段时间,制得具有空气净化功能的涂料。

Description

一种具有空气净化功能的涂料的制备方法
技术领域
本发明涉及环保技术领域,特别是一种具有空气净化功能的涂料的制备方法。
背景技术
室内的污染气体对人体健康存在严重威胁,例如:甲醛中毒,易引起耳鼻喉癌症等疾病,甚至产生白血病等严重疾病,有比如甲苯等挥发性气体,对于人体器官具有严重危害。在室内装饰中,涂料是最为常用的装饰材料,与空气具有广泛的接触,由此,具有净化空气功能的涂料获得了广泛的研究兴趣。
大多数具有空气净化功能的涂料,均含有二氧化钛光催化剂,例如:CN106517896A报道了具有空气净化功能的涂料,复合了改性膨润土甲醛吸附剂、改性膨润土、钛白粉等组份;CN102876147A报道了一种复合空气净化涂料及其制备方法,复合了气凝胶粒子、光催化粒子及乳液等。大多数涂料中,通过物理混合法,复合了二氧化钛光催化剂,通常无法高效去除甲醛等有毒有害气体。
因此,开发具有环保、高效、安全性能的具有净化空气功能的涂料,已成为环保技术领域的一种迫切需求。
发明内容
本发明的目的在于:提供一种具有空气净化功能的涂料的制备方法,结合物理、化学制备技术,快速批量制备复合凹凸棒土、钴酸镧、二氧化钛、氧化锌、聚乙烯醇、黄原胶及乳液的具有空气净化功能的涂料。
本发明的技术方案:首先,在水浴条件下,向一定量水溶液中,加入凹凸棒土、聚乙二醇、六水合硝酸镧及六水合硝酸钴,搅拌一段时间后,滴加一定质量浓度的液碱溶液,调节pH值至碱性,继续搅拌反应一段时间,经过滤得到滤液A和滤渣,滤渣经干燥、煅烧,制得复合物B;其次,在水浴条件下,向滤液A中,加入凹凸棒土、硫酸钛和氯化锌,调节pH至中性,搅拌反应一段时间后,经过滤、干燥、煅烧,制得复合物C;然后,将复合物B和C混合、研磨,制得复合物D;最后,向一定量乳液中,加入聚乙烯醇、黄原胶及复合物D,经搅拌研磨一段时间,制得具有空气净化功能的涂料。
所述的技术方案中,首先,在水相中,凹凸棒土、聚乙二醇、硝酸镧及硝酸钴均匀分散,凹凸棒土作为载体,聚乙二醇作为分散剂,硝酸镧和硝酸钴溶解,达到分子水平的混合,经液碱调节pH值,氢氧化镧和氢氧化钴均匀沉积于凹凸棒土中,经干燥、煅烧,制得负载钴酸镧的凹凸棒土复合物B;其次,在滤液A中,凹凸棒土、硫酸钛和氯化锌均匀分散,经液碱调节pH至中性,经过滤、干燥、热处理,得到负载二氧化钛和氧化锌的凹凸棒土复合物C;然后,复合物B和C经混合、研磨,得到含钴酸镧、二氧化钛、氧化锌及凹凸棒土的复合物D;最后,将聚乙烯醇、黄原胶及复合物D复配于乳液中,聚乙烯醇作为粘结剂、黄原胶作为稳定剂、复合物D作为空气净化剂活性组份,形成具有空气净化功能的涂料。
本发明与现有技术相比,具有显著优点:其一、该具有空气净化功能的涂料,以凹凸棒土为吸附剂,钴酸镧、二氧化钛及氧化锌为复合光催化剂,可有效吸附并通过光催化去除VOC、甲醛等有害气体,净化空气;该具有空气净化功能的涂料的生产工艺简便、成本低廉,同时该涂料具有绿色环保、耐候性好、应用广泛等优点。
具体实施方式
下面结合具体实施例说明本发明的技术解决方案,这些实施例不能理解为对技术方案的限制。
实施例1:依以下具体步骤制备一种具有空气净化功能的涂料。
步骤1、在70oC水浴条件下,向1000mL水溶液中,加入250g凹凸棒土、20g聚乙二醇PEG-2000、43.3六水合硝酸镧及29.1g六水合硝酸钴,搅拌4h后,滴加30%质量浓度的液碱溶液,调节pH值至11,继续搅拌反应5h,经过滤得到滤液A和滤渣,滤渣经110oC干燥12h、800oC煅烧10h,制得复合物B;
步骤2、在70oC水浴条件下,向1000g滤液A中,加入250g凹凸棒土、192g硫酸钛和10.9g氯化锌,调节pH至中性,搅拌8h后,经过滤、110oC干燥12h、600oC煅烧10h,制得复合物C;
步骤3、将复合物B和C混合、研磨6h,制得复合物D;
步骤4、向1000g苯丙乳液中,加入10g聚乙烯醇、10g黄原胶及50g复合物D,经搅拌研磨6h,制得具有空气净化功能的涂料。
实施例2:依以下具体步骤制备一种具有空气净化功能的涂料。
步骤1、在80oC水浴条件下,向1000mL水溶液中,加入250g凹凸棒土、80g聚乙二醇PEG-10000、86.6六水合硝酸镧及58.2g六水合硝酸钴,搅拌6h后,滴加30%质量浓度的液碱溶液,调节pH值至11,继续搅拌反应8h,经过滤得到滤液A和滤渣,滤渣经150oC干燥8h、1000oC煅烧8h,制得复合物B;
步骤2、在80oC水浴条件下,向1000g滤液A中,加入250g凹凸棒土、384g硫酸钛和54.5g氯化锌,调节pH至中性,搅拌12h后,经过滤、150oC干燥8h、800oC煅烧8h,制得复合物C;
步骤3、将复合物B和C混合、研磨8h,制得复合物D;
步骤4、向1000g硅丙乳液中,加入30g聚乙烯醇、25g黄原胶及150g复合物D,经搅拌研磨10h,制得具有空气净化功能的涂料。
实施例3:依以下具体步骤制备一种具有空气净化功能的涂料。
步骤1、在75oC水浴条件下,向1000mL水溶液中,加入250g凹凸棒土、50g聚乙二醇PEG-6000、65六水合硝酸镧及43.6g六水合硝酸钴,搅拌5h后,滴加30%质量浓度的液碱溶液,调节pH值至11,继续搅拌反应6h,经过滤得到滤液A和滤渣,滤渣经130oC干燥10h、900oC煅烧9h,制得复合物B;
步骤2、在75oC水浴条件下,向1000g滤液A中,加入250g凹凸棒土、288g硫酸钛和32.7g氯化锌,调节pH至中性,搅拌9h后,经过滤、130oC干燥10h、700oC煅烧9h,制得复合物C;
步骤3、将复合物B和C混合、研磨7h,制得复合物D;
步骤4、向1000g醋丙乳液中,加入20g聚乙烯醇、17g黄原胶及100g复合物D,经搅拌研磨8h,制得具有空气净化功能的涂料。

Claims (3)

1.一种具有空气净化功能的涂料的制备方法,其特征是:
(1)、在70oC-80oC水浴条件下,向一定量水溶液中,加入凹凸棒土、聚乙二醇PEG、六水合硝酸镧及六水合硝酸钴,搅拌4h-6h后,滴加30%质量浓度的液碱溶液,调节pH值至11,继续搅拌反应5h-8h,经过滤得到滤液A和滤渣,滤渣经110oC-150oC干燥8h-12h、800oC-1000oC煅烧8h-10h,制得复合物B,其中,凹凸棒土和PEG占水的质量比例为25%和2%-8%、六水合硝酸镧及六水合硝酸钴占水的摩尔比例分别控制为0.1mol/L-0.2mol/L和0.1mol/L-0.2mol/L;
(2)、在70oC-80oC水浴条件下,向一定量滤液A中,加入凹凸棒土、硫酸钛和氯化锌,调节pH至中性,搅拌8h后,经过滤、110oC-150oC干燥8h-12h、600oC-800oC煅烧8h-10h,制得复合物C,其中,凹凸棒土占滤液A的质量比例控制25%,硫酸钛和氯化锌占滤液A的摩尔比例控制0.8mol/L-1.6mol/L和0.08mol/L-0.4mol/L;
(3)、将复合物B和C混合、研磨6h-8h,制得复合物D;
(4)、向一定量乳液中,加入聚乙烯醇、黄原胶及复合物D,经搅拌研磨6h-10h,制得具有空气净化功能的涂料,其中,聚乙烯醇、黄原胶及复合物D占乳液的质量比例分别为1%-3%、1%-2.5%和5%-15%。
2.根据权利要求1所述的一种具有空气净化功能的涂料的制备方法,其特征在于:所述的聚乙二醇PEG分子量可选2000-10000。
3.根据权利要求1所述的一种具有空气净化功能的涂料的制备方法,其特征在于:所述的乳液可选用纯丙乳液、苯丙乳液、醋丙乳液或硅丙乳液。
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徐虹等: "钙钛矿型 LaCoO3材料对气相甲醛的降解效果研究", 《环境科技》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110624408A (zh) * 2019-10-15 2019-12-31 陈澄江 一种空气净化剂及其制备方法

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