Abstract: A biodecomposable film material includes: a biodecomposable material which is one or more selected from the group consisting of polylactic acid, poly(butylene adipate-co-terephthalate) and poly butylene succinate and which has a mass percentage of 60-70%; a food grade agricultural waste having a diameter smaller than 50 ?m and a mass percentage of 10-30%; a modifier which is calcium carbonate powder or magnesium silicate salt powder and which has a diameter smaller than 8 ?m and a mass percentage of 7-29%; and an organic decomposing bacterium which is Bacillus amyloliquefaciens. The organic decomposing bacterium is heat resistant bacillus capable of withstanding a temperature of 100° C. and has a mass percentage of 1-3%. The biodecomposable material, the food grade agricultural waste, the modifier, and the organic decomposing bacterium are subjected to compounding and blowing to form a film having a thickness of 40-60 ?m.

Abstract: A photosensitive adhesive is polymerized by a cinnamate monomer and a monomer A. By irradiating under different light waves, triggering reversible cyclization causes the adhesion force of the adhesive to change. The adhesion force change is repeatable. Therefore, the efficiency of the manufacture process would increase, and the cost of material would be reduced.