Abstract
Synthetic polymer polyethylene LDPE has been grafted with natural polymers of banana talas (Musa paradisiacal Var sapientum L.) peels flour. The aim of this research is to make compossed plastic of the thermoplastic banana peels flour with LDPE resins plastic based on mechanic and degradation behaviours. Low Density Polyethylene (LDPE) resins, glycerol, banana peels, humus soil, xylene p.a as the raw materials. Thermoplastic banana peels flour produced by added 30% glycerol concentration and then by aging for 2 weeks. The mixing of the thermoplastic banana peels flour with LDPE resins using a ratio of 1:3, 2:3 and 3:3. Xylene (coupling agent) 6 times of the total mass were added to increase compatibility between thermoplastic banana peels flour and LDPE. The mechanical properties of composite were analyzed using ASTM D638 method and the biodegradation capability composite were charactherized using soil burial test method. The results show that tensile strength in the ratio of 1:3, 2:3, 3:3 respectively were 28.94 kg/cm2, 36.16 kg/cm2, 29.94 kg/cm2. The percentage of residual weight show the biodegradation capability in the ratio of 1:3, 2:3, 3:3 was 98.46%, 97.67%, 98.24%. Mixing ratio of 2:3 thermoplastic banana peels flour and LDPE has the best value of tensile strength and degradation capability. Mixing ratio of 2:3 thermoplastic banana peels flour and LDPE has the best value of tensile strength and degradation capability.
Highlights
ABSTRACT−Synthetic polymer polyethylene Low-Density Polyethylene (LDPE) has been grafted with natural polymers of banana talas (Musa paradisiacal Var sapientum L.) peels flour
This research intends to make plastic composites of the thermoplastic banana peels flour with LDPE resins plastic based on mechanic and degradation behaviors
The results show that tensile strength in the ratio of 1:3, 2:3, and 3:3 respectively were 28.94 kg/cm2, 36.16 kg/cm2, 29.94 kg/cm2
Summary
2003, dimana konsumsi plastik Indonesia sendiri pada tahun 2003 hanya 1,35 juta ton per tahun. Salah satu upaya yang ditempuh untuk menghadapi sampah plastik konvensional adalah pengembangan plastik biodegradable. Salah satu material yang bisa digunakan yaitu tepung kulit pisang talas (Musa paradisiaca var sapientum L.) termoplastis (TKPTT) sebagai pengisi (filler). Pemilihan tepung kulit pisang sebagai filler didasarkan pada potensi kulit pisang yang melimpah dan belum dimaksimalkan. Pisang talas (Musa paradisiaca var sapientum L.) adalah salah satu jenis pisang khas Kalimantan Selatan yang memiliki prospek cerah ke depan. Bobot kulit pisang mencapai 40% dari buahnya dan kandungan pati kulit pisang mencapai 12,8% dari 100 gram berat keringnya (Emaga et al, 2007). Kulit pisang mengandung pati sebesar 12,8%; serat sebesar 50,3%; protein 8,6%; sisanya lemak dan abu sebesar 28,3% per 100 gram bobot kering kulit pisang. Maka dengan demikian kulit pisang menghasilkan limbah dengan jumlah volume yang besar (Emaga et al 2007)
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