摘要：本论文针对护肤凝胶体系，主要研究护肤凝胶体系各种成分对产品流变特性的影响，通过制备含不同浓度保湿剂、流变调节剂及其他成分的凝胶产品，并测定各产品的流变特性，以揭示不同成分对产品流变特性影响的规律性。黏度测试表明：凝胶体系黏度及流变特性随不同浓度保湿剂、流变调节剂及其他添加剂的加入量的增加而增大；黏度随温度升高而增大，随温度降低而减小。稳态测试结果表明，随着剪切速率的增加，凝胶体系的表观黏度随之下降，体现出“剪切变稀”的特征，说明凝胶体系是假塑性流体；动态测定结果表明，随着角频率的增加，凝胶体系的储能模量（G '）和损耗模量（G ' '）均随之增大，说明凝胶体系是粘弹性流体。5810
关键词：凝胶；黏度；流变性 ；影响因素；规律性
Research of the influence factors of rheology in skin care gel system
Abstract: For skin care gel system, this paper mainly research on the effect of various components on the rheological properties of the product through the preparation containing different concentrations moisturizers, rheological regulator and other components of gel product and the determination of the rheological properties of products, to reveal the regularity of the impact of different components on the rheological properties of the product. Experimental results show that the viscosity and rheological properties of the gel system with different concentrations moisturizers, rheological regulator and other additives increases with the increase of the dosage; Viscosity increases with temperature increasing, decreases with temperature decrease. Steady state test results show that, with the increase of the shear rate， gel viscosity decrease, also show that shear thinning fluid characteristics and gel system is pseudoplastic fluid. The results of dynamic measurements show that, with the increase of angular frequency, gel system storage modulus （G '） and loss modulus （G ' '） are increased, also show that the gel system is a viscoelastic fluid.
Key words: gel; viscosity; rheological property; influencing factor; regularity
目 录
1. 绪论 1
1.1凝胶概况 1
1.1.1凝胶的定义 1
1.1.2凝胶的组成 1
1.1.3凝胶形成机理 2
1.1.4凝胶的种类 2
1.1.5凝胶在化妆品中的应用 3
1.2凝胶性能及其应用 3
1.2.1流变性概念 3
1.2.2流变性在化妆品中的应用 5
1.3化妆品流变特性的影响因素 6
1.4 本课题的研究目的和意义 6
2. 实验内容 8
2.1 实验原料与设备 8
2.1.1 实验原料 8
2.1.2 实验设备 8
2.2 实验方法 9
2.2.1 卡波系列凝胶制备工艺 9
2.2 2丙烯酸羟乙酯系列凝胶制备工艺 9
2.3 NDJ-5S型黏度计测定凝胶黏度 9
2.4 护肤凝胶的流变性能测试 9
3. 实验结果与讨论 10
3.1 凝胶制备工艺的研究 10
3.2 配方组成对凝胶体系黏度的影响 10
3.2.1增稠剂种类及用量对凝胶体系黏度的影响 10
3.2.2保湿剂种类对凝胶体系黏度的影响 14
3.2.3水溶性油脂种类及用量对凝胶体系黏度的影响 16
3.3配方组成及用量对凝胶体系流变性的影响 18
3.3.1 U20用量对凝胶体系流变特性的影响 18 护肤凝胶体系流变性的影响因素研究:http://www.751com.cn/huaxue/lunwen_3005.html