Pembuatan Natrium Karboksimetil Selulosa (Na-CMC) dari Selulosa Kulit Buah Pinang (Areca Catechu L.) pada Variasi Konsentrasi Naoh

Abstract

Areca Nut Shells Fro,11 Agricultural Waste Can Be Used To Produce Cellulose, Which Is Then Converted Into Sodiu,N Carboxy,Nethyl Cellulose (Na-CMC). Cellulose Was Isolated Using A Con1binatio11 Of Two 111ethods, Naniel Ydiluteacid Treaunent With HNO1 And Alkalination With Naoh Solution, Yielding A-Cellulose Of 12.534 G(16.713% Of The Initial Weight). The Etheriftcatio11reaction With The Initial Stage Of Alkalisation, Na111el Y The Reaction Between Cellulose And Naoh In A ,Nixed Reaction 111ediu1n Of 100ml Isopropanol-Butanol (20:80) ( Vl V), With Variations Of Naoh 10%, 15%, 20%, And 25%, Was Used To Prepare Na-CMC, .Followed By The Carboxy111eth Ylation Stage With The Addition Of Sodiu111 Chloroacetate To Alkaline Cellulose. Na-CMC Was Obtained At 76.5%, 78.2%, 80.1%, And 79% Of The Starting Weight, Respectively. In The 20% Naoh Variation, The Highest Degree Of Substitution Was 0.61. According To The Results Of FTIR Spectrophoto,Netertesting, Na-CMC Has A Vibrational Peak In The Wave N11111ber Region Of 3250.2 Cni-1, Which Is The Absorption Band Of Rhe -OH Group, The C-H Stretching Group At Wave 11u111ber 2887.5 C,11·1 , A Typical Peak At Wave N111nber 1580.4 Cn(1, Which Shows The COO· Stretching Group, And 1408.9 Cni"1 C -H Bending Group On Carboxy,Nethyl. SEM Surfa Ce ,Norphology Analysis Revealed That The Surface Of The Fibres On Sodium Carboxy,Nethyl Cellulose Appeared Larger And Expanded Than The Surface Of A-Cellulose.