共查询到19条相似文献,搜索用时 718 毫秒
1.
2.
叙述了制造有色压敏胶带时,所需色浆的制备方法,按色浆配方,色浆调色和色浆的研磨分别进行了介绍,给出了一个黄青色色浆的配方实例,并且从涂布后胶带的色泽和遮盖力两方面讨论了色浆质量的判别,介绍了判断胶带遮盖力的简易迭层法。 相似文献
3.
浅析影响溶剂型色浆研磨效率的因素 总被引:1,自引:0,他引:1
考虑树脂、色粉、分散剂、溶剂的选择准则和颜基比的计算对溶剂型色浆配方进行设计,并在一定的研磨工艺基础上,通过对达到合格细度时所需研磨时间的比较,来评价色浆的研磨效率,简单分析了研磨设备的选择对色浆研磨效率的影响。 相似文献
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
简述了传统的对苯二胺氧化染发剂的危害性,指出了无氨染发剂、无过敏染发剂和天然植物染发剂是染发产品的科技创新和科技进步。为发展和振兴中国染发剂工业提供最新的动态和信息。 相似文献
14.
David M. Mahli Jon M. Wegner J. Edward Glass Daniel G. Phillips 《Journal of Coatings Technology and Research》2005,2(8):635-647
A matrix of coating variables, nonassociative versus associative thickeners, different latex median particle sizes, individual
surfactants and colorants [carbon black (CB), red, and yellow pigments], was examined for their influence on variances in
coatings rheology and color development. Within the different coating groups, the variable of interest in this study was the
surfactant added to the colorant formulation. In all three colorant formulations, sodium dodecyl sulfate (an anionic surfactant)
provided poorer color development (CD) than in applied formulations containing an equivalent nonylphenol oxyethylene (EO)
surfactant. In CB formulations, nonionic surfactants with higher EO content provide improved color development at low (2 mM)
concentrations, but near equality in CD is achieved with low EO surfactants at higher concentrations. In contrast to CB formulations,
red and yellow colorants exhibit good color development with high EO content nonionic surfactants only at low nonionic surfactants
concentrations. This variance appears to be related to the interactions of surfactants with inorganic pigments (talc and laponite)
in the colorant formulation.
The coating’s rheology is related to latex, thickeners, and surfactant components of the paint, as has been noted in previous
studies, but not to the nature of the color pigment. The viscosity of the hydroxyethyl cellulose (nonassociative type) and
HEUR (associative type) thickened paint decreased with colorant addition due to dilution effects. There were no unusual deviations
with the NP(EO)x surfactants, except when a large hydrophobe nonionic surfactant [e.g., C18H37(EO)100] is added. In HEC thickened coatings, the viscosity decreases when C18H37-(EO)100 is in the colorant due to that surfactant inhibiting depletion flocculation. In the C18H37(EO)100 coatings containing the HEUR thickener, significant increases in viscosity were observed, above the dilution values observed
with the colorant addition. This is related to the viscosity maximum in the low concentration of HEUR with the C18H37(EO)100 surfactant. Color development is independent of the viscosity profile of the coating.
Presented in part at the 81st Annual Meeting of the Federation of Societies for Coatings Technology, November 13–14, 2003
in Philadelphia, PA. 相似文献
15.
16.
17.
David M. Mahli Jon M. Wegner J. Edward Glass Daniel G. Phillips 《Journal of Coatings Technology and Research》2007,4(1):31-41
Oxyethylene (PEO)/oxypropylene (PPO) triblock polymers are added to colorant formulations to determine the influence of molecular
weight and other structural variances on the rheology and color development of tinted latex paints. Waterborne coatings are
a matrix of many coating components. In this study, a 108- or a 600-nm latex was thickened with a nonassociative thickener,
hydroxyethyl cellulose, or an associative telechelic HEUR thickener. Triblock polymers with internal PPO segments and PEO
terminal segments added as a dispersant to colorant packages, lead to better color development than PPO/PEO/PPO triblocks
dispersants in carbon black (CB) tinted paints. The increase in color development with high molecular weight (MW) triblocks
starts at a very low concentration (2 mM) and plateaus in a Langmuir-type adsorption isotherm. Lower molecular weight triblock
polymers also exhibit this behavior in CB-, red-, and yellow-tinted latex coatings; however, increasing the terminal PEO segment
sizes leads to better color development only in the CB-tinted coatings. With large PEO terminal units red and yellow tints
are high only at very low concentrations (2 mM) of the triblock. This parabolic response in color development, in contrast
to CB-tinted formulations, is attributed to the high surface area and porosity of CB that limits the amount of large PEO segments
interacting with the talc particle present at twice the volume fraction of the colorant. With the lower surface areas of the
red and yellow colorants, the interaction of the large PEO terminal segments with talc particles accounts for the limited
triblock concentration for which good color development is observed. This can be reversed by decreasing or eliminating talc
from the formulation. 相似文献
18.
19.