In this study found contents Tensile Stress of SA/SPI at 70/30 have a good properties because (หนูไม่รู้จะเขียนเหตุผลว่าอย่างไรดี) and water degradation test film (None crosslink) SA/SPI film 90/10 and 80/20 very high degradation because Alginate good water absorption.