منابع مشابه
Effects of Rosin Sizing Agent on the Fixation of Boron in Styrax
The aim of this study was to evaluate the effect of rosin upon fixing boron in Styrax tonkinensis (Piere) wood treated with mixtures of 3% boric acid and 1% rosin sizing agent. After treatment, wood samples were also analyzed by scanning electron microscope observation and energy-dispersive X-ray spectroscopy (SEM-EDX). The results showed that all boron-rosin formulations impregnated Styrax ton...
متن کاملPreparation of aqueous dispersion of thermoplastic sizing agent for carbon fiber by emulsion/solvent evaporation
In this work, different sizing agent aqueous dispersions based on polyetherimide (PEI) were elaborated in order to improve the interface between carbon fibers and a thermoplastic matrix (PEEK). The dispersions were obtained by the emulsion/solvent evaporation technique. To optimize the stability and the film formation on the fibers, two surfactants were tested at different concentrations, with ...
متن کاملStability analysis of primary emulsion using a new emulsifying agent gum odina
Gum odina and various parts of the plant Odina wodier are traditionally used in Indian folk medicine. Here an effort was made to investigate the efficacy of gum odina as new pharmaceutical excipients, in particular, as an emulsifying agent. Primary emulsion was prepared using wet gum method taking oil: water: gum (4:2:1) with gum acacia powder as an emulsifying agent. This was used as a standar...
متن کاملRosin Microspheres as Taste Masking Agent in Oral Drug Delivery System
Natural resources in general and plant materials in particular are receiving more attention due to their safety as pharmaceutical excipients. Present work assessed the combination potential of natural hydrophobic resin, rosin, and synthetic polymer ethyl cellulose to mask the abhorrent inherent taste of ambroxol hydrochloride, by microencapsulation technique, and its possibility to formulate as...
متن کاملeffect of alum consumption levels in alum-rosin sizing on multilayered paperboard properties
sizing of paperboard has a distinctive position in packaging grade paperboard material. optimization of sizing by alum-rosin at neutral ph in 4 layered paperboard (330 g/m2) wereevaluated in this study to find the optimum ratio of alum- rosin loading in the process. fixed amount of 1% cationic dispersed rosin together with alum as a fixing agent at 5 different levels of 1, 1.5, 2, 3, and 4% (ba...
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ژورنال
عنوان ژورنال: JAPAN TAPPI JOURNAL
سال: 1989
ISSN: 0022-815X,1881-1000
DOI: 10.2524/jtappij.43.1229