Effect of Pretreatment of Organo Layer Silicate with Surfactant Using Sonication to the Gallery of Silicate Layer for Biodegradable Nanocomposite Preparation

Liza, Chandra; Soegijono, Bambang; Budianto, Emil; Alinasiri, J.; Jayatin,

doi:10.1016/j.proche.2012.06.007

Cited by 2 publications

(2 citation statements)

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“…The OLS was pretreated with GMS using sonication in ethanol, refer to our previous work [9]. The starch and the GMS were conditioned in the oven for 24 hours at 60 o C. Masterbatch fabrication was carried out by treated OLS, PEgMA, GMS and starch were dry mixed according to formulation given in table 1.…”

Section: Preparation and Characterizationmentioning

confidence: 99%

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Morphological Structure of Pretreated Organo Layer Silicate Dispersion in Masterbatch Biodegradable Polymer Cassava Starch Clay Nanocomposite

Liza

Soegijono

Budianto

et al. 2012

AMR

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Biodegradable polymer using inexpensive renewable resources such as starch produced poor mechanical, barrier properties and transparency of product, these properties were the important parameter for packaging material. This research intended to study the effect of glycerol monostearate (GMS) treated organo layer silicate (OLS) in biodegradable polymer starch masterbatch to eliminate the inferior properties. Focus was in morphological structure of biodegradable polymer starch clay nanocomposite. Biodegradable polymer starch clay nanocomposite was prepared using Haake Rheomix Polydrive at a temperature of 100 °C for 5 minutes and screw speed 60 rpm and the product was used as masterbatch to get a better dispersion of OLS in the matrix. Masterbatch was formulated with the parameter of 35 %, 45 % and 50 % starch and 3.5 % of OLS. Morphological structure of biodegradable polymer starch clay nanocomposite was characterized using Scanning Electron Microscope (SEM), Atomic Force Microscope (AFM) and X-Ray Diffraction (XRD) to observe the dispersion and compatibility of the organo layer silicate in biodegradable nanocomposite matrix. XRD analysis provided the dispersion of organo layer silicate at 35% starch was better than 45% starch and 50% starch in materbatch. This was consistent with the SEM and AFM result, masterbatch containing 50% starch had interfere the OLS dispersion and produced agglomeration of organo layer silicate. SEM images of masterbatch with 50 % loading level of starch shown structure that starch not completely thermoplasticized.

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Section: Preparation and Characterizationmentioning

confidence: 99%

“…In this experiment, the plasticizer used was glycerol monostearate (GMS). GMS was also used to treat OLS to get more intercalation [9] and partly added during the preparation of masterbatch.…”

Section: Introductionmentioning

confidence: 99%