Effects of ambient temperature and humidity on viruses activity on different architectural coatings and kinetics study

被引：3

作者：

Zhu, Changcai ^{[1
]}

Li, Yulian ^{[2
]}

Liu, Ruirui ^{[1
]}

Ji, Zhijiang ^{[1
]}

Zhao, Chunyan ^{[1
]}

Wang, Jing ^{[1
]}

Xie, Shuai ^{[1
]}

Guo, Chunhong ^{[1
]}

机构：

[1] China Bldg Mat Acad, State Key Lab Green Bldg Mat, Beijing 10024, Peoples R China

[2] Guangdong Acad Sci, Inst Microbiol, Guangdong Detect Ctr Microbiol, Guangdong Prov Key Lab Microbial Culture Collect &, Guangzhou 510070, Guangdong, Peoples R China

来源：

PROGRESS IN ORGANIC COATINGS | 2023年 / 183卷

关键词：

Virus; Temperature; Relative humidity; Architectural coating; Kinetic model; WATER-SOLID INTERFACE; INACTIVATION KINETICS; RELATIVE-HUMIDITY; ENTERIC VIRUSES; CALCULATING STERILITY; THERMAL INACTIVATION; INFLUENZA-VIRUSES; SURVIVAL CURVES; AIR-TEMPERATURE; HIGH-PRESSURE;

D O I：

10.1016/j.porgcoat.2023.107698

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The inactivation rates of non-encapsulated virus (MS2, & phi;A039, enterovirus EV71) and enveloped virus (influenza A virus H3N2) on architectural coating with different porosity were measured at different temperatures and relative humidity (RH). To study the variation of virus activity on different architectural coating with temperature and humidity and provide reference for the control of indoor building surface virus. The inactivation rate of the virus on different surfaces was analyzed at 15 & DEG;C, 25 & DEG;C, 35 & DEG;C and 45 & DEG;C and at RHs of 30 %, 60 %, and 90 % for 12 h or 24 h. Overall, the architectural porous coating is adsorbent to viruses. Under low temperatures and high RH conditions (15 & DEG;C, 90 % RH), the viruses can survive longer on the surface of the architectural nonporous (few pores) coating. At low humidity, water can evaporate rapidly on the porous surface, which contributes to virus inactivation, especially for nonenveloped viruses. Architectural porous coating can absorb and retain more water, which reduces the impact of high temperature on the virus under high humidity conditions. The inactivation rate of H3N2 on porous surfaces decreased with the decrease of humidity. In addition, the first-order kinetic and nonlinear Weibull models are used to describe the virus inactivation data. The inactivation of the virus on the surface of the architectural coating and the goodness of fit of the virus inactivation rate is related to the porosity of the architectural coating, temperature, RH, and the type of virus.

引用

页数：17

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