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Preparation and Characterization of Biobased Dehydroabietyl Polyethylene Glycol Glycidyl Ether-Grafted Hydroxyethyl Cellulose with High Emulsifying Property

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Journal of Renewable Materials 2024年第1期12卷 103-117页

作者： Zhengqing Ding Quan Yang Xinyan Yan Feng Gu Xujuan Huang Zhaosheng Cai School of Chemical and Chemistry Yancheng Institute of TechnologyYancheng224051China

Dehydroabietyl polyethylene glycol glycidyl ether-grafted hydroxyethyl cellulose(HEC)polymer surfactant(DA(EO)5GE-g-HEC)was prepared using ring-opening polymerization with biobased rosin and hydroxyethyl cellulose as *** polyethylene glycol glycidyl ether(DA(EO)5GE)was formed by condensation of dehydroabietyl alcohol polyoxyethylene ether(Rosin derivative:DA(EO)5H)and *** grafting degree of DA(EO)5GE-g-HEC was manipulated by adjusting the mass ratio of HEC and DA(EO)5GE and confirmed by *** to the formula,when m(HEC)/m(DA(EO)2GE)was 1:1~1:5,the grafting rate of DA(EO)5GE in DA(EO)5GE-g-HEC varied from 34.43%to 38.33%.The surface activity and foam properties of DA(EO)5GE-g-HEC aqueous solution were *** results showed that with the increase in grafting rate,the critical micellar concentration(CMC)in aqueous solution changed from 1.28 to 0.96 g/*** results of the thermogravimetric analysis showed that the temperature range of the main stage of mass loss of DA(EO)5GE-g-HEC was 310°C~410°C,and the thermal decomposition processes of the samples with five mass ratios were *** oil in water emulsion was prepared by choosing cyclohexane as the oil phase and DA(EO)5GE-g-HEC as the *** effect of DA(EO)5GE-g-HEC mass fraction on emulsion particle size and stability was *** results suggested that when the oil-water ratio was 8:2 with 0.4%emulsifier,the emulsion droplets were the smallest in terms of particle size and were the most *** rheological test results showed that the apparent viscosity decreased with the increase in shear rate and showed a typical elastic gel phenomenon.

关键词： Rosin hydroxyethyl cellulose surfactant emulsion rheological behaviour

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rheological behaviourS OF CAST STEEL DURING SOLIDIFICATION

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Acta Metallurgica Sinica(English Letters) 1992年第8期5卷 114-119页

作者： LIN Jialiu ZHU Shigen YU Zhenzong Tsinghua University,Beijing,China

The stress-strain relation for cast low alloy carbon steel at solidification temperature has been examined by the authors' own desingned apparatus for rheological properties *** rheology model,the stress-strain constitutive equation and the rheological parameters therefrom of the cast steel were *** the theoretical basis and calcula- ting data for computerized s#nulation on the stress-strain relation and thermal cracking of the cast steel were suggested.

关键词： rheological behaviour east steel solidification rheology model constitutive equation

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DISPERSION PRODUCTION BY SEMI-CONTINUOUS RADICAL VINYL ACETATE EMULSION POLYMERIZATION WITH SILANE CO-MONOMER AND CHARACTERIZATION OF FINAL PRODUCTS

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Chinese Journal of Polymer Science 2013年第2期31卷 346-354页

作者： Mindaugas Dubininkas Gintaras Buika Department of Organic Technology Kaunas University of Technology

Vinyl acetate radical emulsion polymerization in water with GF51 silane co-monomer was performed by semi continuous way. The GF51 impacts on dispersion rheology as well on films and bonding strength properties were determined. It should be stated that even low quantities of GF51 （up to 6% from VAc） determined high viscosity of dispersions. The GF51 modified films have low water absorption and high affinity to glass. Molecular mass and thermal properties of GF51 modified polymers were determined accordingly.

关键词： Semi-continuous vinyl acetate polymerization Geniosil GF51 Triethoxy vinylsilane rheological behaviour Wood bonding.

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rheological and physicochemical characteristics of asphalt mastics incorporating lime kiln dust and dolomite powder as sustainable fillers

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Journal of Road Engineering 2023年第1期3卷 98-112页

作者： Najib Mukhtar Mohd Rosli Mohd Hasan Hanizah Osman Zainiah Mohd Zin Khairul Anuar Shariff Nur Izzi Md.Yusoff Ashiru Sani School of Civil Engineering Universiti Sains Malaysia(Engineering Campus)Nibong Tebal 14300PenangMalaysia Department of Civil Engineering Bayero University KanoKabuga 700241 KanoNigeria School of Materials and Mineral Resources Engineering Universiti Sains Malaysia(Engineering Campus)Nibong Tebal 14300PenangMalaysia Department of Civil Engineering Faculty of Engineering&Built EnvironmentUniversiti Kebangsaan MalaysiaSelangor Darul Ehsan 43600Malaysia Department of Civil Engineering Kano University of Science and TechnologyKano 3244Nigeria

The filler-bitumen interaction mechanism is one of the most essential phases for comprehending the asphalt mixture's ***,despite numerous studies,in-depth knowledge of filler-bitumen reciprocity at a microscale level is yet to be *** goal of this research is to gain a better understanding of the fillerbitumen microscale interaction in terms of the synergy and coaction between the physicochemical and rheological performance of mastics due to filler *** rheological properties of two sustainable mastics,dolomite powder(DP)and lime kiln dust(LKD),together with a neat PEN 60/70 binder,were analysed based on a temperature sweep at elevated temperature ***,frequency sweep and multiple stress creep recovery(MSCR)tests were also conducted at pavement serviceability temperature using the dynamic shear rheometer(DSR).Physicochemical tests using a scanning electron microscope(SEM)and energy dispersive X-rays(EDX)were conducted to analyse the impact of parameters such as particle shape,grain size,texture,and chemical *** DSR test results showcased how the incorporation of fillers in asphalt binder considerably improved the performance of the binder in terms of rutting and ***,its strain and nonrecoverable compliance parameters were substantially reduced at higher filler and binder *** filler attributes of low rigden voids(R.V),high fineness modulus(FM),and high specific surface area(SSA)led to greater interfacial stiffness and elasticity in LKD mastics compared to DP mastics at different loading frequencies and temperature *** SEM/EDX results also indicated that the elemental calcium and carbon composition of each filler component,together with its grain morphology,strongly influenced its rheological performance.

关键词： Asphalt mastics Industrial by-product Waste recycling Sustainable material consumption rheological behaviour Chemical characterisation

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Rheology of Steel Fibre Containing Alumina-Magnesia-Extruded Graphite Pellets Self-Flowing Castables

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China's Refractories 2007年第2期16卷 11-16页

作者： K. Balamurugan K. Sankaranarayanane Michel Riguad école Polytechnique de Montréal QC Canada H3C3A7

The influences of adding steel fibres of different lengths up to 3 volume percentages, on the rheological behaviour of an alumina-magnesia-extruded graphite pellet containing castables have been studied using a rheometer. Free-flow measurements have shown that the flow is severely affected by increasing the length of steel fibres. The calculated values of rheological constants indicate that 19 mm and 25 mm fibre up to 2 volume percentage is permitted while one volume percentage of 50 mm fibres severely degrades the rheology of the castable.

关键词： Steel fibre rheological behaviour Alumina-magnesia-extruded graphite pellet containing castables

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Numerical Simulation and Experimental Characterization of Clay Paste under Loads for Energy Saving in Clay Materials Processing

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Journal of Minerals and Materials Characterization and Engineering 2016年第2期4卷 154-163页

作者： Brahiman Traore Kokou Esso Atcholi Ouro-Djobo Samah Samuel Gomes Tibi Beda Université Bourgogne Franche-Comté IRTES EA7274 Belfort France Laboratoire de Géomateriaux Université Félix Houphouet Boigny Cocody-Abidjan Abidjan Cote d’Ivoire Unité de Recherche sur les Agroressources et la Santé Environnementale (URASE) Université de Lomé Lomé Togo Département de Physique Faculté des Sciences Université de Ngaoundéré Ngaoundéré Cameroun

Requirements for the respect of the environment encourage to reduce the impact of human activity on the nature. Civil engineering answers these requirements by the development of ecological construction materials. This paper deals with the transformation of clay raw materials which enable the processing of environmentally friendly construction materials: in addition to their biodegradability, the alveolar fired clay materials allow energy saving in home heating thanks to their thermal isolation properties. But their manufacturing is a high energy consumption process, in particular during compaction, drying and firing which contribute to the emission of greenhouse gases. The goal of this paper is to study the rheology of clay pastes in order to develop low energy in manufacturing processes. For this purpose, theoretical and experimental approaches were carried out on six clay varieties. In the theoretical approach, a finite element (FE) simulation model has been developed for pressing a non-rigid material predicting deformations and stresses occurring within the clay structure. Experiments have then been carried out to validate the finite element modelling. In this experimental approach, the clay pastes were transformed with water content respecting the Atterberg limits which determine the plasticity of clays. The samples compaction has been carried out under variable loadings in order to determine the suitable low energy consumption loading.

关键词： Simulation Model Environmentally Friendly Construction Materials rheological behaviour Clay Materials Energy Saving

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Study rheological Behavior for Rapeseed Oils

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Journal of Chemistry and Chemical Engineering 2013年第2期7卷 184-186页

作者： Ioana Stanciu Department of Physical Chemistry University of Bucharest Bucharest 030018 Romania

rheological behavior of this article presents rapeseed oil. Dynamic viscosity of rapeseed oil was determined at temperatures between 40 ℃-90 ℃ and shear rates ranging from 3.3-120 s1. All types of oils studied Bingham fluid behavior in the temperature range from 313-363 K. Correlation coefficients have similar values to one for all oils studied.

关键词： rheological behaviour rapeseed oil degummed rapeseed oil.

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