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强抗恶劣环境建筑抑尘剂的制备与特性

Preparation and Characteristics of Building Dust Suppressants with Strong Resistance to Harsh Environments.

作者信息

Ding Hao, Huang Zhian, Peng Shijie, Wang Hongsheng, Li Jinyang, Wang Ruixiang, Zhang Yinghua, Wang Pengfei

机构信息

Inst Risk Assessment and Control, Guangdong Technol Ctr Work Safety Co., Ltd., Guangzhou 510050, PR China.

State Key Laboratory of High-Efficient Mining and Safety of Metal Mines (University of Science and Technology Beijing), Ministry of Education, Beijing 100083, PR China.

出版信息

ACS Omega. 2024 Jan 8;9(3):3746-3757. doi: 10.1021/acsomega.3c07734. eCollection 2024 Jan 23.

DOI:10.1021/acsomega.3c07734
PMID:38284029
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10809320/
Abstract

Most dust suppressants used for buildings currently lack sufficient resistance to harsh conditions, such as high temperatures and wind erosion. To solve this problem, it is necessary to develop a new type of dust suppressant. In this study, the guar gum molecule was chemically modified to remove the active hydroxyl group in order to significantly improve the stability and adhesion of guar gum. Eventually, a composite dust suppressant was synthesized by incorporating a surfactant and an absorbent agent into modified guar gum. The functional groups of the reaction products were analyzed via infrared experiments, thus confirming the success of the modification. Wind erosion resistance and scanning electron microscopy experiments confirmed the improved bonding capabilities of the composite dust suppressant with dust particles. In experiments on wind erosion resistance, the dust fixation rate exceeded 50% after the application of the composite dust suppressant. The results of the thermogravimetric tests showed that the maximum mass loss rate of the samples with modified guar gum dust suppressants was 6.0% and 28% lower than those of the samples with unmodified guar gum dust suppressants and water, respectively. Furthermore, the tests conducted on pH value and corrosion resistance indicated that the pH value of this dust suppressant was comparable to that of tap water and demonstrated a similar rate of metal corrosion. The practical significance of this study is to improve the dust suppressant used in buildings, to improve the performance of dust suppressant and resistance to harsh environment, and to help to continuously improve the health of personnel and environmental protection during construction. The practical significance of this study is to improve the dust suppressant used in buildings, to improve the performance of dust suppressant and resistance to harsh environments, and to help to continuously improve the health of personnel and environmental protection during construction, which has positive practical significance for the building industry and related fields.

摘要

目前用于建筑物的大多数抑尘剂对高温和风蚀等恶劣条件缺乏足够的抗性。为了解决这个问题，有必要开发一种新型抑尘剂。在本研究中，对瓜尔胶分子进行化学改性以去除活性羟基，从而显著提高瓜尔胶的稳定性和附着力。最终，通过将表面活性剂和吸收剂加入改性瓜尔胶中合成了一种复合抑尘剂。通过红外实验分析了反应产物的官能团，从而证实了改性的成功。抗风蚀和扫描电子显微镜实验证实了复合抑尘剂与粉尘颗粒的结合能力得到了提高。在抗风蚀实验中，施用复合抑尘剂后固尘率超过50%。热重测试结果表明，使用改性瓜尔胶抑尘剂的样品的最大质量损失率分别比使用未改性瓜尔胶抑尘剂的样品和水的样品低6.0%和28%。此外，对pH值和耐腐蚀性进行的测试表明，这种抑尘剂的pH值与自来水相当，并且金属腐蚀速率相似。本研究的实际意义在于改进用于建筑物的抑尘剂，提高抑尘剂的性能和对恶劣环境的抗性，并有助于在施工期间持续改善人员健康和环境保护。本研究的实际意义在于改进用于建筑物的抑尘剂，提高抑尘剂的性能和对恶劣环境的抗性，并有助于在施工期间持续改善人员健康和环境保护，这对建筑行业及相关领域具有积极的现实意义。

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