scholarly journals KARAKTERISTIK FOURIER TRANSFORM INFRA RED DAN KEKUATAN BENTUR KOMPOSIT POLIESTER TAK JENUH BERPENGISI ABU SEKAM PADI PUTIH

2014 ◽  
Vol 3 (1) ◽  
pp. 23-26
Author(s):  
Caroline Oktaviana Hutagalung ◽  
Maulida
Keyword(s):  
Fourier Transform ◽  
Impact Strength ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Unsaturated Polyester ◽  
White Rice ◽  
Infra Red ◽  
Polyester Composite ◽  
Mixing Method ◽  
Polyester Composites

This study was aimed to investigate the effect of white rice husk ash as filler in Fourier Transform Infra Red (FTIR) caractheristic and impact strength of polyester composites. The composites were made with open mixing method by mixing unsaturated polyester with white rice husk ash with the composition of each fillers of 5,10, 15, and 20 % (w/w) then added with 1% methyl ethyl ketone peroxide as catalizer. The parameters which was carried on the prepared samples was characteristic of FTIR and impact strength. It was found that impact strength increased at each of composition of fillers white rice husk ash (WRHA). The optimum value of unsaturated polyester composite filled WRHA are 7031 J/m2 and 8297,333 J/m2 for particle size maximum 100 and 250 mesh.

scholarly journals The Analysis of Silica From Rice Husks Siam Unus from South Kalimantan

2021 ◽  
Vol 9 (2) ◽  
pp. 81-87
Author(s):  
Dwi Rasy Mujiyanti ◽  
Dahlena Ariyani ◽  
Muna Lisa
Keyword(s):  
Fourier Transform ◽  
Functional Groups ◽  
Rice Husk ◽  
Functional Group ◽  
Optimum Temperature ◽  
Rice Husks ◽  
White Rice ◽  
X Ray ◽  
Infra Red

Research on analysis of rice husk content of Siam Unus with various NaOH concentrations (1.0 M; 1.5 M; 2.0 M; 2.5 M; 3.0 M) has been done. This study aims to obtain data on the effect of variations in NaOH concentration on the purity of the silica extract from Siam Unus rice husks and silica characterization of Siam Unus rice husks using Fourier Transform Infra-Red (FTIR) and X-ray fluorescence spectrometry (XRF). The results showed that the combustion of rice husks at 200 °C as optimum temperature for 1 hour followed by combustion at 600 °C for 4 hours produces grayish-white rice husks with a yield is 20.70%. Silica functional group characterization showed that silanol (Si-OH) and siloxane (Si-O-Si) as dominant functional groups. The result of composition characterization using XRF showed that SiO2 as the dominant compound with the highest percentage of SiO2 is 1.5 M NaOH extract at 42.80%.

PENGARUH UKURAN PARTIKEL DAN KOMPOSISI ABU SEKAM PADI HITAM TERHADAP SIFAT KEKUATAN TARIK KOMPOSIT POLIESTER TIDAK JENUH

2015 ◽  
Vol 3 (4) ◽  
pp. 31-36 ◽  
Author(s):  
Rotua Adryani ◽  
Maulida
Keyword(s):  
Particle Size ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Volume Fraction ◽  
Unsaturated Polyester ◽  
Tensile Elongation ◽  
Size Variation ◽  
Black Rice ◽  
Elongation At Break ◽  
Mixing Method

This research was aimed to investigate the effect of black rice husk ash particle size and black rice husk ash composition as filler in tensile strength of unsaturated polyester composites. The composites were made with open mixing method by mixing unsaturated polyester with black rice husk ash with particle size variation of 100 mesh and 250 mesh, and volume fraction ratio between filler and matrix 95/5 : 90/10 : 85/15 : 80/20 then added with 1% methyl ethyl ketone peroxide as catalizer into mixture of unsaturated polyester and black rice husk ash. Tests performed are tensile, elongation at break, and Young’s modulus. The result of obtained at a ratio 95/5 with a particle size of 100 and 250 mesh was 24,413 MPa and 24,689 MPa.

RICE HUSK ASH AS FILLER IN UNSATURATED POLYESTER BASED SHEET MOULDING COMPOUNDS (SMC)

2004 ◽  
Vol 53 (8) ◽  
pp. 659-670 ◽  
Author(s):  
R. N. Kumar ◽  
Ban Hee Voon ◽  
H. D. Rozman ◽  
A. Abusamah ◽  
Frank Bauer
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Unsaturated Polyester

Composite Materials from Unsaturated Polyester/Rice Husk Ash/ Natural Rubber-g-Polystyrene

2007 ◽  
Vol 15 (4) ◽  
pp. 291-295
Author(s):  
Saowaroj Chuayjuljit ◽  
Pecharee Sriratampai ◽  
Pranut Potiyaraj
Keyword(s):  
Composite Materials ◽  
Natural Rubber ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Unsaturated Polyester

scholarly journals SYNTHESIS OF ZEOLITE BETA DIRECTLY FROM RICE HUSK ASH: EFFECT OF REACTION COMPOSITION ON CRYSTALLINITY OF ZEOLITE BETA

2010 ◽  
Vol 6 (1) ◽  
pp. 11-15 ◽  
Author(s):  
Didik Prasetyoko ◽  
Zainab Ramli ◽  
Salasiah Endud ◽  
Halimaton Hamdan ◽  
Bogdan Sulikowski
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Static Condition ◽  
Zeolite Beta ◽  
The Other ◽  
Crystalline Phases ◽  
Mixture Ratio ◽  
White Rice ◽  
Oxide Ratio ◽  
Solid Phases

White rice husk ash obtained from complete uncontrolled burning of rice husk contains more than 94% silica. The ash, which consists of crystalline silica of the type tridymite and a-crystobalite, was used directly as a source of silica in the synthesis of zeolite beta. The mole oxide ratio of the initial gel of 1.25-8Na2O: 10-120SiO2: Al2O3: 1-20TEA2O: 150-1000H2O was prepared and heated at 150°C in a static condition for 6 d. The solid phases formed were monitored by XRD technique. Influence of reaction mixture ratio in the initial gel to the crystalline products formed was studied. Results showed that the pure zeolite beta was formed in a certain range of reaction mixture, i.e.: 1.25-4Na2O : 15-45SiO2 : Al2O3 : 4-10TEA2O : 240-480H2O. The other ratio of reaction mixtures produced crystalline phases such as analcime, Na-P, mordenite, and gismondine, and non-reacted of a-crystobalite and tridymite. Keywords: rice husk ash, tridymite, a-crystobalite, zeolite beta, synthesis

scholarly journals RECYCLED PET FOR RICE HUSK/POLYESTER COMPOSITES

2017 ◽  
Vol 22 (4) ◽  
pp. 345 ◽  
Author(s):  
I. Ahmad ◽  
D. R. Abu Bakar ◽  
S. N. Mokhilas ◽  
A Ramli
Keyword(s):  
Mechanical Properties ◽  
Rice Husk ◽  
Soft Drink ◽  
Unsaturated Polyester ◽  
Filler Loading ◽  
Rice Husks ◽  
Recycled Pet ◽  
Poly Ethylene Terephthalate ◽  
Polyester Composites ◽  
Poly Ethylene

Rice husks were combined with unsaturated polyester resin, synthesized from glycolysed product of poly (ethylene terephthalate) (PET) waste to form rice husk (RH)/polyester composites. PET from post-consumer soft drink bottles was recycled through glycolysis, followed by polyesterified with maleic anhydride and then cross-linked with styrene to producea formulation for the resin. Characterizations of the synthesized resin were performed byhydroxyl, acid values and Fourier Transform InfraRed (FTIR) techniques. The effect of filler loading and surface modification of rice husks on the mechanical properties of the composites were also investigated. It has been observed that the increasing filler loading resulted in reduction of tensile strength, elongation at break and impact strength but increased tensilemodulus and hardness. At similar filler loading, alkalized filler composites have higher mechanical properties. 

scholarly journals SYNTHESIS AND CHARACTERIZATION OF CALCIUM SILICATE FROM RICE HUSK ASH AND SNAIL SHELL

2019 ◽  
Vol 11 (2) ◽  
pp. 45
Author(s):  
Sadang Husain ◽  
Ninis Hadi Haryanti ◽  
Suryajaya Suryajaya ◽  
Antung Permitaria
Keyword(s):  
Rice Husk ◽  
Calcium Silicate ◽  
Rice Husk Ash ◽  
Wave Number ◽  
X Ray Diffraction ◽  
Solid Reaction ◽  
Snail Shell ◽  
X Ray ◽  
Infra Red

<p class="abstrak">Calcium silicate ceramics have been made using natural ingredients such as rice husk and snail shell with solid reaction techniques. The aim of this study to determine the characteristics of calcium silicate that have been sintered at a temperature of 900 <sup>°</sup>C, 1000 <sup>°</sup>C, and 1100 <sup>°</sup>C. Samples were characterized by X-Ray Diffraction (XRD), optical microscopy, and Fourier Transform Infra-Red (FTIR). The results of XRD characterization showed that CaSiO<sub>3</sub> (calcium silicate) along with the increase in calcination temperature and quantity was increased due to the increase of temperature of calcination. FTIR analysis showed that the Ca-Si-O bond was formed at wave number ranging from 848 cm<sup>-1</sup> and 999 – 1001 cm<sup>-1</sup>.</p>

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