流变调节剂在二元喷雾产品中的影响

doi:10.3969/j.issn.2097-2806.2024.02.009

Abstract

Abstract:

The effects of rheology modifiers on the stability and spraying performance of Bag-on-valve spray products were studied. Five rheology modifiers that were commonly used in cosmetics （carbomer, ammonium acryloyldimethyltaurate/VP copolymer, polyacrylate crosspolymer-6, xanthan gum, and cellulose） were studied either alone in water or in a lotion base at different concentrations （0.02%, 0.05%, 0.10%, and 0.20%）. The rheological behavior was investigated with a rheometer. The spraying performance was tested on Malven Panalytic Spraytec. The micro-gel size distribution in water was measured on a laser granulometer. The stability of the lotions containing different rheology modifiers was also monitored for 3 months. The results showed that xanthan gum showed bad spraying performance and provided relatively high normal stress. Cellulose had relatively low normal stress and good spraying performance. Carbomer, acryloyldimethyltaurate/VP copolymer, and polyacrylate crosspolymer-6 had relatively small micro-gel size, which proposed a concentration-dependent rheological response. When used at high concentration, the molecules interacted with each other so that higher viscosity was build up. Good elasticity could also be obtained at high concentration. When used at low concentration, the micro-particles were incompact, especially for cellulose and ammonium acryloyldimethyltaurate/VP copolymer, the spraying performance was good, but the rheological behavior was viscous-like, indicative of bad stability.

Key words: rheology, shear-thinning, yield stress, atomizing, Bag-on-valve

CLC Number:

TQ658

Xinyu Peng, Haiyan Liang, Zixian Wen, Meiting Li, Xin Li, Xiaofeng Qiu. Impact of rheology modifiers on Bag-on-valve spray products[J].China Surfactant Detergent & Cosmetics, 2024, 54(2): 181-187.

Figures/Tables 9

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References 13

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	INCI名称	w/%
A相	去离子水	To 100
	甘油	3.00
	羟苯甲酯	0.20
	硬脂酰谷氨酸钠	0.20
	流变调节剂	0.02，0.05，0.10，0.20
	聚甘油-3二异硬脂酸酯	0.50
B相	山梨坦异硬脂酸酯	2.00
	肉豆蔻酸异丙酯	6.00
	聚二甲基硅氧烷	2.00
C相	氢氧化钠	适量（调节pH 6.5~7.0）

剂型	聚合物名称	压力/Mpa	喷雾距离/mm	喷雾角度/（°）	Dv50/μm
水溶液	黄原胶	0.61	1 300±43	不可喷	不可喷
	纤维素	0.61	620±28	58.50±3.28	73.09±5.00
	卡波姆	0.61	1 100±53	不可喷	不可喷
	丙烯酰二甲基牛磺酸铵/VP共聚物	0.61	520±16	58.28±3.81	73.99±3.35
	聚丙烯酸酯交联聚合物-6	0.61	510±12	41.95±2.13	86.35±3.61
乳液	黄原胶	0.63	900±32	22.62±1.52	361.17±37.15
	纤维素	0.62	720±17	53.10±3.37	69.76±5.88
	卡波姆	0.62	890±15	38.58±4.40	107.30±12.51
	丙烯酰二甲基牛磺酸铵/VP共聚物	0.61	600±22	57.62±4.01	75.32±3.99
	聚丙烯酸酯交联聚合物-6	0.62	610±23	53.13±3.37	77.84±5.32

剂型	水溶液		乳液
剂型	屈服应力/Pa	Strain/%	屈服应力/Pa	Strain/%
黄原胶	―	―	1.18	37.96
纤维素	―	―	0.10	25.00
丙烯酰二甲基牛磺酸铵/VP共聚物	―	―	―	―
聚丙烯酸酯交联聚合物-6	1.09	6.30	2.66	28.30
卡波姆	4.54	1.55	8.15	9.45

剂型	Dv50/μm
剂型	不加氯化钠	加入氯化钠
黄原胶	754.40±53.20	747.60±47.15
纤维素	8.24±2.37	8.36±1.59
丙烯酰二甲基牛磺酸铵/VP共聚物	5.26±0.99	5.53±0.38
聚丙烯酸酯交联聚合物-6	18.57±1.67	11.32±1.39
卡波姆	24.32±1.95	21.68±2.09

INCI名称	化学结构	主要增稠机理
黄原胶	天然来源阴离子增稠剂，一级结构由葡萄糖主链及甘露糖和葡萄糖醛酸侧链组成，二级形成螺旋结构，三级形成螺旋复合体	氢键，静电排斥及分子缠绕
纤维素	天然来源非离子增稠剂，纤维呈纳米尺寸，具有三维网络结构	氢键，缠结作用
卡波姆	化学合成阴离子增稠剂，丙烯酸均聚物，未中和	静电排斥作用，高浓度时缠结作用
聚丙烯酸酯交联聚合物-6	化学合成阴离子增稠剂，丙烯酸酯类及甲基丙烯酸酯类共聚物，其侧链主要为中长碳链的烷基醇酯和烷基醇醚类。已中和	静电排斥及疏水基团的相互作用
丙烯酰二甲基牛磺酸铵/VP 共聚物	化学合成阴离子增稠剂，丙烯酰胺甲基丙磺酸，乙烯基吡咯烷酮共聚物，已中和	静电排斥作用，高浓度时缠结作用

Impact of rheology modifiers on Bag-on-valve spray products

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