Study On Synthesis And Application Property Of Polyglycerol Fatty Acid Ester As Ecological Textile Auxiliary Agent

Polyglycerol fatty acid ester is a new type of surfactant with manifold performanceswhich has developed recently,such as emulsification,solubilization,dispersion,defoaming,etc.It is used to a wide range of fields,such as food additives, petrochemical industry,health &medicine,cosmetic,plastic processing,etc.In the field of textile,the application of polyglycerol fatty acid ester is started,single species;its service performance isn't expanded.At present,people pay attention to the environmental protection;research and development of polyglycerol fatty acid ester surfactant and their application as the textile auxiliary agent has of great significance.The raw material is glycerin,two different degree of polymerization(n=3,5) of polyglycerols were synthesized by controlling the reaction conditions(temperature,amount of catalyst,water),at the same time,selected four kinds of fatty acids,a series of new polyglycerol di-fatty acid esters were synthesized.Tested basic properties of the synthesis samples (acid value,saponification value,hydroxyl value,surface tension),and in accordance with the fatty acid value and of the sample.Test results showed that part of the performance of products reached to those of foreign products by this method. The effect of smooth,wettability,antistatic of the polyglycerol di-fatty acid esters for different fabrics were discussed,analyzed and compared the effect of different degree of polymerization,type of fatty acids,concentration of finishing liquor.Test results showed that(1)smooth:the synthesis samples were prepared into different concentration of finishing liquors,processed cotton fabric by double-dip-double-nip.The smooth of finished gray fabrics increased by 15%to 25%;(2) antistatic:the synthesis samples were prepared into different concentration of finishing liquors,processed polyester fabric by double-dip-double-nip.The sensor/friction static voltage on the surface of the finished fabric decreased obviously,the sensor/friction static voltage on the surface of polyester fabric was 4122V,After processing,its sensor/friction static voltage was 1258V,obtained good finishing effect.(3)wettability: Tripolyglycerol dioleic acid ester has the best wettability to polyester fabric.The feasibility application performance of polyglycerol di-fatty acid esters were discussed,which were added to cassava starch size in order to improve flexility of the starch film,6%concentration of cassava starch was prepared,added different amounts of polyglycerol di-fatty acid esters,poured into starch films.Results showed that pure starch films were cracked into many small pieces,which couldn't be required to a sample specifications for testing:20cm×2.5cm,starch films joined the synthesized samples were integrated,obtained a sample specifications for testing.Tested the bending stiffness of films,analyzed and compared the effect of different degree of polymerization,type of fatty acids,amount of additive for flexility of the film.Finally,obtained molecular structure information of good effect of Polyglycerol di-fatty acid ester.