Pengaruh Karakteristik Bioplastik Pati Singkong dan Selulosa Mikrokristalin Terhadap Sifat Mekanik dan Hidrofobisitas

Intandiana, Sinda; Dawam, Akbar Hanif; Denny, Yus Rama; Septiyanto, Rahmat Firman; Affifah, Isriyanti

doi:10.30870/educhemia.v4i2.5953

Cited by 8 publications

(8 citation statements)

References 2 publications

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“…Seperti terlihat pada Tabel 2 di atas, menunjukkan bahwa rasio pati : selulosa 7,5 : 2,5 menghasilkan ketahanan air yang lebih baik dibandingkan rasio pati : selulosa 8,5 : 1,5 dengan nilai terbaik 46,638%. Penambahan selulosa dapat mengurangi hidrofilik pati karena karakteristik selulosa yang tidak larut dalam air [13]. Penyerapan air dari bioplastik berbanding lurus dengan peningkatan selulosa berikut.…”

Section: Analisa Daya Serap Airunclassified

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Pembuatan Plastik Biodegradable Pati Jagung Terplastisasi Sorbitol dengan Pengisi Selulosa dari Ampas Tebu

Huwaidi

Supriyo²

2022

equilibrium

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ABSTRAK. Plastik menimbulkan kerusakan lingkungan karena sifatnya yang sulit terurai secara alami. Banyaknya ampas tebu di Indonesia dan tingginya kandungan selulosa dapat digunakan sebagai pengisi pada pembuatan bioplastik. Selulosa memberikan sifat kedap air, menghambat biodegradasai, dan meningkatkan kuat tarik bioplastik. Oleh karena itu dilakukan penelitian pembuatan bioplastik menggunakan ampas tebu sebagai pengisi. Pembuatan bioplastik menggunakan metode solution casting. Hasil terbaik pengujian daya serap air pada rasio pati:ampas tebu 7,5:2,5; massa sorbitol 2,3 gr; dan suhu 75oC dengan nilai 46,638%. Hasil terbaik pengujian biodegradasi pada rasio pati:ampas tebu 8,5:1,5; masssa sorbitol 2,7 gr; dan suhu 65oC dengan nilai 88,253%. Hasil terbaik pengujian kuat tarik dan perpanjangan putus dengan nilai 2.9574 N/mm2 dan 0.8896%. Hasil kedua pengujian masih belum memenuhi standar SNI 7828:2014.Kata kunci:Ampas Tebu, Bioplastik, dan Selulosa ABSTRACT. Plastic causes environmental pollution because it is difficult to decompose in nature. The large amount of bagasse in Indonesia and the high cellulose content can be used as filler for making bioplastics. Cellulose as a bioplastic filler provides water resistance, inhibits biodegradation, and increases tensile strength. Therefore, research was conducted using bagasse as a bioplastic filler. Bioplastics are made by the solution casting method. The best results of water absorption at the ratio of starch: bagasse 7.5:2.5; mass of sorbitol 2,3 g; and temperature of 75oC with a value of 46.638%. The best results of biodegradability at the ratio of starch: bagasse 8.5:1.5; mass of sorbitol 2,7 g; and temperature of 65oC with a value of 88.253%. The best results of tensile strength and elongation at break are 2.9574 N/mm2 and 0.8896%. The results of the both tests still do not meet the requirements of SNI 7818:2014 standard.Keywords:Bagasse, Bioplastic, and Cellulose

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Section: Analisa Daya Serap Airunclassified

“…Berdasarkan Tabel 2 di atas, pada uji kuat tarik untuk run 5 dengan rasio pati:selulosa 7,5:2,5, nilai kekuatan tariknya lebih baik daripada run 4 dengan rasio pati:selulosa 8,5:1,5. Hal ini karena selulosa cenderung meningkatkan kekuatan tarik bioplastik [13]. Selulosa memiliki rantai polimer yang panjang yang memberikan sifat fisik kuat [11].…”

Section: Analisa Kuat Tarikunclassified

Pembuatan Plastik Biodegradable Pati Jagung Terplastisasi Sorbitol dengan Pengisi Selulosa dari Ampas Tebu

Huwaidi

Supriyo²

2022

equilibrium

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“…After, the samples were removed and dried on a tissue for about 15 seconds. These steps were repeated until the samples were destroyed or the sample weight became constant [46]. The water uptake value of each sample was determined as % water uptake = ((final sample weight -initial sample weight) / initial sample weight) (g) x 100 [36].…”

Section: Water Uptake Testingmentioning

confidence: 99%

The potential of rice bran waste (Oryza sativa L.) and shrimp shell waste as chitin nanowhisker with glycerol plasticizer in the production of bioplastic

Setiawan

Adhitama

Goeltom

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Bioplastics are plastics made from biopolymers as an alternative to commercial plastics to reduce environmental pollution. Starch from rice bran waste is an essential biopolymer material, and chitin from shrimp shell waste; can be converted into chitin nanowhiskers (CNWs) that can strengthen biopolymer materials. A glycerol plasticizer was added to improve its elasticity. This research aims to determine the potential of starch from rice bran waste and CNWs from shrimp shell waste as ingredients in the production of bioplastics with the addition of glycerol plasticizer and its degradation property through soil burial testing. This fundamental research consists of chitin extraction, CNW production, starch extraction, bioplastic production, tensile strength testing, water uptake testing and soil burial testing on the sand, humus, and compost. The use of rice bran starch and shrimp shell CNW as ingredients in the production of bioplastics are deemed potential. This bioplastic exhibited low mechanical properties such as tensile strength and water uptake but outstanding degradation in the soil burial testing.

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“…Glycerol can weaken the tensile strength of plastic because glycerol can cause the formation of empty spaces by breaking the polysaccharide bonds [7]. The addition of cellulose material during the production of biodegradable plastic can increase its tensile strength because cellulose has straight and long polymer chains that can make bioplastics strong [8]. The increased tensile strength due to the addition of cellulose can form a network of strong hydrogen bonds that occur between the starch and cellulose matrix [9].…”

Section: Tensile Testmentioning

confidence: 99%

The Characterization of Biodegradable Plastics from Cassava Starch with Varried Addition of Robusta Coffee Skin (Coffea canefora) and Glycerol

et al. 2022

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One of the solutions to the plastic pollution crisis is biodegradable plastic. The most efficient raw material for making biodegradable plastic is cassava starch, but it has a weakness in that natural fibers are generally added as reinforcement and natural filler. In this study, Robusta coffee skin fiber was used as a reinforcement for biodegradable plastic. To obtain the right variation of coffee skin composition, this study applied a completely randomized design (CRD) with two factors. The parameters observed in this study were thickness, water absorption, biodegradation, tensile strength, elongation, and modulus of elasticity. Data were analyzed using descriptive statistics and ANOVA test, coupled with the effectiveness index test was carried out. The results showed a thickness value of 0.703 – 1.007 mm. The value of water absorption is between 3.437 – 13.512 %. The resulting biodegradation value is between 32.914 – 68.971%. The tensile strength value is 19,056 – 46,507% and it is directly proportional to the modulus of elasticity, which is produced between 2.557 – 16.442 Mpa. The effectiveness index test demonstrated that the best treatments were obtained from the addition of 15% coffee skin with 20% glycerol, 10% glycerol with 20% coffee skin, and 5% glycerol with 20% coffee skin.

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Pengaruh Karakteristik Bioplastik Pati Singkong dan Selulosa Mikrokristalin Terhadap Sifat Mekanik dan Hidrofobisitas

Cited by 8 publications

References 2 publications

Pembuatan Plastik Biodegradable Pati Jagung Terplastisasi Sorbitol dengan Pengisi Selulosa dari Ampas Tebu

Pembuatan Plastik Biodegradable Pati Jagung Terplastisasi Sorbitol dengan Pengisi Selulosa dari Ampas Tebu

The potential of rice bran waste (Oryza sativa L.) and shrimp shell waste as chitin nanowhisker with glycerol plasticizer in the production of bioplastic

The Characterization of Biodegradable Plastics from Cassava Starch with Varried Addition of Robusta Coffee Skin (Coffea canefora) and Glycerol

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