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1溶解度参数原理在厨房重垢洗涤剂配方中的应用显示文摘厨房油烟会产生烦人的油垢,既影响厨房卫生,又不利于身体健康,其清洗难度很大。常用的重油垢清洗剂有强碱型、溶剂型和表面活性剂型。强碱型对重油垢去除能力强,其缺点是腐蚀性较强,对器具表面和使用者有腐蚀性和伤害作用。有机溶剂型对油垢具有良好的溶解作用,但由于有机溶剂易燃、易爆而且有毒,不太适用于厨房环境。表面活性剂型使用方便、作用温和以及成本低,但对重垢的去除效果不太理想。利用溶解度参数原理,结合HLB值,在测定油垢酸值、溶解度参数等的基础上配制溶剂/表面活性剂型厨房重油垢清洗剂,所制得的清洗剂对油垢有较好的溶解和乳化效果。易玉峰 迟姚玲 冀德坤 丁福臣 2010日用化学品科学2010,33,2:5
2反气相色谱法测定聚环己基丙烯酸甲酯的热力学性质(英文)显示文摘In this work,some thermodynamic properties of poly(cyclohexyl methacrylate)were studied by inverse gas chromatography(IGC).For this purpose,the polymeric substance was coated on Chromosorb W and which was filled into a glass column.The retention times(tr)of the probes were determined from the interactions of poly(cyclohexyl methacrylate)with n-pentane,n-hexane,n-heptane,n-octane,n-decane,methanol,ethanol,2-propanol,butanol,acetone,ethyl methyl ketone,benzene,toluene and o-xylene by IGC technique.Then,the specific volume(V0g)was determined for each probe molecule.By using(1/T;ln V0g)graphics,the glass transition temperature of poly(cyclohexyl methacrylate)was found to be 373 K.The adsorption heat under the glass transition temperature(ΔHa),and partial molar heat of sorption above the glass transition(ΔHS1),partial molar free energy of sorption(ΔGS1)and partial molar entropy of sorption(ΔSS1)belonging to sorption for every probe were calculated.The partial molar heat of mixing at infinite dilution(ΔH∞1),partial molar free energy of mixing at infinite dilution(ΔG∞1),Flory-Huggins interaction parameter(χ∞12)and weight fraction activity coefficient(a1/w1)∞values of polymer-solute systems were calculated at different column temperatures.The solubility parameters(δ2)of the polymer were obtained by IGC technique.Ismet KAYA Cigdem Yigit PALA 2014色谱2014,32,7:0
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