Temperature and Relative Humidity Dependency of Film Formation of Polymeric Latex Dispersions

	Temperature and Relative Humidity Dependency of Film Formation of Polymeric Latex Dispersions
	Chen XL ; Fischer S ; Men YF
刊名	langmuir
	2011
卷号	27 期号:21 页码:12807-12814
关键词	X-RAY-SCATTERING ATOMIC-FORCE MICROSCOPY DRYING PROCESS DEFORMATION WATER PARTICLES CRYSTALS COATINGS MECHANISMS SURFACTANT
ISSN号	0743-7463
通讯作者	men yf
中文摘要	thermogravimetric analysis and a synchrotron small-angle x-ray scattering technique were employed to characterize the structural evolution of a polymeric latex dispersion during the first three stages of film formation at different temperatures and relative humidities. three intermediate stages were identified: (1) stage i, (2) stage i, and (3) stage ii. stage i* is intermediate to the conventionally defined stages i and ii, where latex particles began to crystallization. the change of drying temperature affects the location of the onset of ordering, whereas relative humidity does not. stage i** is where the latex particles with their diffuse shell of counterions in the fcc structure are in contact with each other. the overlapping of these layers results in an acceleration of the lattice shrinkage due to a decrease of effective charges. stage ii* is where the latex particles, dried well above their t(g), are deformed and packed only partially during film formation due to incomplete evaporation of water in the latex film. this is because of a rapid deformation of the soft latex particles at the liquid/air interface so that a certain amount of water is unable to evaporate from the latex film effectively. for a latex dispersion dried at a temperature close to its minimum film formation temperature, the transition between stages ii and iii can be continuous because the latex particles deform at a much slower rate, providing sufficient surface area for water evaporation.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000296211800007
公开日期	2012-06-08
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/44260]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Chen XL,Fischer S,Men YF. Temperature and Relative Humidity Dependency of Film Formation of Polymeric Latex Dispersions[J]. langmuir,2011,27(21):12807-12814.
APA	Chen XL,Fischer S,&Men YF.(2011).Temperature and Relative Humidity Dependency of Film Formation of Polymeric Latex Dispersions.langmuir,27(21),12807-12814.
MLA	Chen XL,et al."Temperature and Relative Humidity Dependency of Film Formation of Polymeric Latex Dispersions".langmuir 27.21(2011):12807-12814.