Performance Of Starch-based Surfactant And Its Application Research In Detergent

With the actual production of some traditional surfactant on the safety of the manifestation of the raw material cost,that is increasing day by day,industrial competition pressure is too great,study and use the natural renewable environmental friendly starch-based surfactants which is an important development direction for surfactant industry.Polymer surfactant made by starch has feature of non-toxic,non-polluting,bio-degradation.It was widely used in food industry,agriculture,detergents,cosmetics and other fields.In this paper,starch and alkenyl amber anhydride as raw material, through the chemical synthesis method,the esterification modification and biological enzymolysis,hydrophilic and hydrophobic group was introduced to the starch molecules,surfactant with special surfaceproperties was prepared,its surface activity was studied,at the same time the application for starch-based surfactants in hand with detergent and tableware dress cloth washing liquid were explored.Studyed on the surface activity for Starch-based surfactants was found that:with the increase of adding amount of anhydride Solution surface tension,the increase of the length of carbon chain anhydride and the solution concentration,the solution surface tension was lowerd,and finally close to a value;At the same time solution surface tension was significantly lower than the traditional surfactant LAS,MES atc,the critical micelle concentration relatively was lower,surface activity is higher;Starch-based surfactants HLB value were both between 12 and 16 which was in a good emulsification,Among them the starch-based surfactants which was by twelve alkenyl amber anhydride synthesised (SSDS) was more suitable for use in the detergent.SSDS was used in hand with detergent formulation,from its relevant performance study was suggested that:SSDS and LAS,AES,APG atc surfactant in a certain proportion with good cooperative performance play were blended. LAS,APG can partly displaced, the surface tension of the system was reduced,and the system of blends with surface activity was improved;the blister sex and permeability for SSDS is lower,while was blended with surfactant that washing performance in good surface active agent,the effect on related to scour catharsis performance was less,and in a certain degree of the system performance,blister decontamination performance were improved.In the dress cloth washing liquid,the APG in formula can be completely replaced by SSDS,while the surfactant as AEO7,AES can be Partly replaced by SSDS,and the detergent decontamination ability for the carbon black and the cloth JB-01 was enhanced;In blends with the system,while the quality than for AEO7:AEO9:AES:SSDS was 10:10:3.5:3,the performance of active molecule coordinating was better,quwuli index was in a higher level.