GLISEROL DAN POLI(PROPILEN ITAKONAT) SEBAGAI PLASTICIZER PADA FILM Ca?ALGINAT/CARBOXYMETHYL CELLULOSE; GLYCEROL AND POLY(PROPYLENE ITACONATE) AS PLASTICIZERS OF Ca?ALGINATE/CARBOXYMETHYL CELLULOSE FILM

Setianingrum, Oktavia, Adhitasari Suratman

2015 | Skripsi | FMIPA

Synthesis of biodegradable film from Ca?alginate/Carboxymethyl cellulose using glycerol and poly(propylene itaconate) as plasticizer has been studied. The purpose of this research is to study the effect of CMC on physical and mechanical characteristic of Ca?alginate film. The effect of glycerol and poly(propylene itaconate) as plasticizer to Ca?alginate/CMC film’s characteristic and biodegradation of the film is also studied. Ca?alginate film was prepared by casting method, i.e. the mixing of Naalginate with CaCl2 1%. The ratio of alginate:CMC are 9:1, 8:2, 7:3, 6:4 and 5:5 with variation of glycerol and poly(propylene itaconate) 0, 3, 6, 9, 12 and 15% (w/w). The solution was molded and heated to 60 oC to form the film. The film was characterized for tensile strength, elongation to break, water vapour transmission rate (WVTR), FT?IR and biodegradation test. The result showed that CMC could increase the tensile strength and biodegradability of the film. The increase of CMC reached its optimum condition at concentration of alginate:CMC 5:5 by glycerol as plasticizer and 7:3 by poly(propylene itaconate) as plasticizer. The use of glycerol as plasticizer reached its optimum condition when its concentration is 15% (w/w) with tensile strength 16.70 Mpa, elongation to break 7.67%, and WVTR 1.22 mm.g/m2.hour.atm. The use of poly(propylene itaconate) as plasticizer reached its optimum condition when its concentration is 12% (w/w) with tensile strength 16.69 Mpa, elongation to break 6.55% and WVTR 0.70 g.mm/m2.hour.atm. The result of biodegradation test showed that alginate, CMC, glycerol and poly(propylene itaconate) could reduce biodegradation time with the percentage of mass loss is 12 – 56% in 7 days.

Kata Kunci : Ca?alginate; CMC; glycerol; poly(propylene itaconate); film