Effects of monomers on performance of grafted starch size

In order to improve the performance of grafting modified starch size,the effect of the amount and variety of monomers on grafting and sizing performances of the grafted starch size are investigated by varying the dosage of monomers at the range of 5%-30% and using different kinds of monomers such as methyl acrylate,methyl methacrylate,ethyl acrylate,ethyl methacrylate,butyl acrylate,and butyl methacrylate.The results show that ethyl acrylate used as grafting monomer is better and the optimum concentration of monomer is 20% when the grafted starch is to be applied for polyester sizing and good results can be expected.