scholarly journals Investigation of the Physico-Chemical Absorption Characterizations of Jute Polymer Clay Nanocomposites as a Function of Chemical Treatments

2020 ◽  
pp. 118-130
Author(s):  
Md. Faruk Hossen ◽  
Md. Ali Asraf ◽  
Md. Kudrat-E- Zahan ◽  
Md. Masuqul Haque ◽  
Rausan Zamir ◽  
...  
Keyword(s):  
Interfacial Interaction ◽  
Clay Nanocomposites ◽  
Hot Press ◽  
Chemical Absorption ◽  
Absorption Properties ◽  
Chemical Reagents ◽  
Chemical Treatments ◽  
Hydrophilic Nature ◽  
Physico Chemical ◽  
Organically Modified

In this study, jute polyethylene clay nanocomposites were developed using hot press technique. The hydrophilic nature of fiber and nanoclay exhibited poor interfacial interaction to hydrophobic polymer matrix. In order to enhance the interfacial interaction among fiber, polymer, and nanofillers, the chemically treated jute (with benzenediazonium salt, propionic anhydride, and 3-isocyanatopropyltriethoxy silane) and organically modified nanoclay were used for the manufacturing of nanocomposites in this study. The effect of chemical treatments and nanoclay addition on the improvement of absorption characterizations of prepared nanocomposites against water and few chemical reagents have been investigated. It has been observed that the treated jute composites showed higher improvement in absorption properties than raw jute composite and silane treated jute composite found highest value. In addition, nanoclay filled composites showed higher improvement than composite without nanoclay and MMT-1.31PS nanoclay loaded nanocomposite exhibited highest improvement among five types of MMT nanoclay used in this work. The fabricated nanocomposites were resistant to all chemicals used except carbon tetrachloride.

The Effect of Fiber Chemical Treatment on Chemical Resistance Behavior of Jute Polyethylene Composites for Storage Tank Application

2020 ◽  
Vol 997 ◽  
pp. 49-55
Author(s):  
Md. Faruk Hossen ◽  
Sinin Hamdan ◽  
Md. Rezaur Rahman ◽  
Md. Tipu Sultan
Keyword(s):  
Chemical Resistance ◽  
Diazonium Salt ◽  
Interfacial Interaction ◽  
Hot Press ◽  
Chemical Treatments ◽  
Hydrophobic Polymer ◽  
Propionic Anhydride ◽  
Hydrophilic Nature ◽  
Benzene Diazonium ◽  
Polyethylene Composites

The jute polyethylene composites were developed using the hot-press technique with different fiber weight ratios. Due to the hydrophilic nature of fiber, it exhibited poor interfacial interaction to hydrophobic polymer matrix. In order to enhance the interfacial interaction between fiber and polymer, the benzene diazonium salt (BDS), propionic anhydride (PA), and 3-isocyanatopropyl triethoxysilane (silane) treated jute were used for the manufacturing of composites in this study. The chemical resistance tests of prepared composites were performed in order to probe whether these are resistant to various chemicals such as: acids, alkalis, and solvents. The effect of chemical treatments of the composites have been investigated. It was observed that the fabricated composites were resistant to all chemicals except carbon tetrachloride. The treated jute composites showed higher chemical resistance than raw jute composite and silane treated jute composite yield the highest resistance which can be suggested for making the water and chemical storage tanks.

Natural nanoclays: applications and future trends – a Chilean perspective

Clay Minerals ◽  
2009 ◽  
Vol 44 (2) ◽  
pp. 161-176 ◽  
Author(s):  
M. Calabi Floody ◽  
B. K. G. Theng ◽  
P. Reyes ◽  
M. L. Mora
Keyword(s):  
Agricultural Land ◽  
Clay Fraction ◽  
Barrier Properties ◽  
Clay Nanocomposites ◽  
Volcanic Soils ◽  
Gas Barrier ◽  
Important Species ◽  
The Past ◽  
Organically Modified ◽  
Water And Wastewater

AbstractBecause of their large potential for agricultural, industrial and medicinal applications, nanomaterials have been the focus of much research during the past few decades. Nanoclays are natural nanomaterials that occur in the clay fraction of soil, among which montmorillonite and allophane are the most important species. Montmorillonite is a crystalline hydrous phyllosilicate (layer silicate). Organically-modified montmorillonites or ‘organoclays’, formed by intercalation of quaternary ammonium cations, have long been used as rheological modifiers and additives in paints, inks, greases and cosmetics and as carriers and delivery systems for the controlled release of drugs. Perhaps the largest single usage of organoclays over recent years has been in the manufacture of polymer-clay nanocomposites. These organic–inorganic hybrid materials show superior mechanical, thermal and gas-barrier properties. Organoclays are also useful in pollution control and water treatment. Allophane is a non-crystalline aluminosilicate derived from the weathering of volcanic ash. A large proportion of the agricultural land in Chile is covered by volcanic soils,the clay fraction of which is dominated by allophane. Consisting of nanosize (3.5–5.0 nm) hollow spherules, allophane is a suitable support material for enzyme immobilization. Allophane is also effective at adsorbing phenolic compounds and colour from kraft mill effluents and phosphate from water and wastewater.

Preparation and Characterization of Ionic Liquild Modified Clay and its Application in Polypropylene/Clay Nanocomposites

2011 ◽  
Vol 55-57 ◽  
pp. 1588-1592
Author(s):  
Li Mei Wang
Keyword(s):  
Clay Nanocomposites ◽  
X Ray Diffraction ◽  
Modified Clay ◽  
Solution Blending ◽  
Organically Modified ◽  
Result Show ◽  
Xrd Patterns ◽  
Clay Layers ◽  
Poly Propylene

Clay was organically modified with one kind of ionic liquild. Organical clay obtained was used to prepare poly(propylene) (PP)/clay nanocomposites by solution blending. Flourier transform infrared (FTIR), wide-angle X-ray diffraction (XRD) and thermogravimetric analysis (TGA) revealed that the ionic liquild was loaded in the galleries of organically modified clay. TGA result show the thermal stability of organically modified clay was superior to clay. XRD patterns indicated that the d-spacing of clay layers increased to 2.96 nm from 1.22 nm of clay. XRD patterns of PP/clay nanocomposites show that clay layers were dispersed in PP matrix by nanometer size.

Enhanced interfacial interaction of rubber/clay nanocomposites by a novel two-step method

2008 ◽  
Vol 68 (3-4) ◽  
pp. 1050-1056 ◽  
Author(s):  
Qing-Xiu Jia ◽  
You-Ping Wu ◽  
Yi-Qing Wang ◽  
Ming Lu ◽  
Li-Qun Zhang
Keyword(s):  
Interfacial Interaction ◽  
Clay Nanocomposites ◽  
Step Method

scholarly journals Effect of Glycidyl Methacrylate on Water Absorption Properties of Sago Hampas Biocomposite

2015 ◽  
Vol 6 (2) ◽  
pp. 34-38
Author(s):  
M. S. Jamaludin ◽  
A. Zulkharnain ◽  
A. A. Khan ◽  
N. Wagiman
Keyword(s):  
Water Absorption ◽  
Glycidyl Methacrylate ◽  
Standard Test ◽  
Test Method ◽  
Matrix Composites ◽  
Hot Press ◽  
Absorption Properties ◽  
Average Water ◽  
Absorption Percentage ◽  
Properties Of Composites

 This study examines the water absorption of sago hampas biocomposite utilizing glycidyl methacrylate as its matrix. Composites were fabricated with 25, 30, 40 wt% sago hampas content and another sample of pure sago hampas using hydraulics hot press machine. The water absorption properties of composites with different sago hampas composition were investigated according to Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials of ASTM D570. Water absorption of pure sago hampas composite have the highest average water absorption percentage with 59.1 wt% as compared to the lowest average water absorption percentage recorded for 30 wt% sago hampas content biocomposite with 16.8%. However sago hampas loading was increased resulting in the increased in average water absorption on biocomposite for 40 wt% sago hampas content which is 33.1%.

scholarly journals EFFECT OF SOLAR DEHYDRATION METHOD ON PHYSICO-CHEMICAL AND SENSORY CHARACTERISTICS OF GREEN BEANS (PHASEOLUS VULGARIS)

2017 ◽  
Vol 5 (4RAST) ◽  
pp. 39-44
Author(s):  
Kuna Priyanka ◽  
R.C. Chandni ◽  
Amar Sankar ◽  
A.V. Raghu
Keyword(s):  
Sodium Chloride ◽  
Sodium Bicarbonate ◽  
Magnesium Chloride ◽  
Chemical Characteristics ◽  
Green Beans ◽  
Chemical Treatments ◽  
Physico Chemical ◽  
Nutritional Characteristics ◽  
Microbial Analysis ◽  
Chlorophyll Retention

Studies were done by different chemical treatments under solar dehydration of Green beans. The Green beans were treated by five different methods which are mentioned and the end product was underwent analysis for physico-chemical characteristics, nutritional characteristics, microbial analysis and sensory evaluation. Five treatments of different proportions with Magnesium chloride, Sodium chloride, Sodium bicarbonate and Magnesium oxide were done for solar dehydration of Green beans and (0.1% Magnesium chloride and 0.1% Sodium bicarbonate) treated Green beans were found to be good in all characteristics i.e. Physico-chemical (better chlorophyll retention) and nutritional characteristics when compared to other  treatments.

scholarly journals PHARMACOGNOSTICAL AND PRELIMINARY PHYTOCHEMICAL SCREENING OF THE LEAVES OF KEDROSTIS FOETIDISSIMA (JACQ.)COGN.

2014 ◽  
Vol 1 (2) ◽  
pp. 112-115
Author(s):  
Thenmozhi K ◽  
Karthika K ◽  
Manian S
Keyword(s):  
Chemical Analysis ◽  
Fluorescence Analysis ◽  
Phytochemical Screening ◽  
Preliminary Screening ◽  
Chemical Reagents ◽  
Physico Chemical ◽  
The Family ◽  
Leaf Powder ◽  
Medicinal Properties ◽  
Phytochemical Extraction

The objective of the study is to cover the pharmacognostical and preliminary phytochemical screening of traditional medicinal plant, Kedrostis foetidissima belonging to the family Cucurbitaceae. This study includes organoleptic characters, physico-chemical analysis, fluorescence analysis, behaviour of leaf powder with different chemical reagents, phytochemical extraction, extractive yield and qualitative phytochemical screening. The preliminary screening revealed the presence of alkaloids, flavonoids, steroids, tannins, phenolics, glycosides, carbohydrates, proteins and aminoacids which explains that the plant must have valuable medicinal properties and so it can be explored

Controllable synthesis of uniform ZnO nanorods and their enhanced dielectric and absorption properties

2014 ◽  
Vol 2 (23) ◽  
pp. 8644-8651 ◽  
Author(s):  
Guang-Sheng Wang ◽  
Ying-Ying Wu ◽  
Xiao-Juan Zhang ◽  
Yong Li ◽  
Lin Guo ◽  
...  
Keyword(s):  
Percolation Threshold ◽  
Reflection Loss ◽  
Filler Content ◽  
Zno Nanorods ◽  
Dielectric Behavior ◽  
Hot Press ◽  
Controllable Synthesis ◽  
Absorption Properties ◽  
Press Method ◽  
Two Peaks

The PVDF/ZnO composites were prepared by a simple hot-press method. The dielectric behavior of the composites was improved at a lower percolation threshold. For the composites with a filler content of 10 wt%, the reflection loss appears as two peaks that can reach −15.90 dB at 6.60 GHz and −25.44 dB at 16.48 GHz.

Effect of interfacial interaction on the structure and rheological properties of polyamide-6/clay nanocomposites

2006 ◽  
Vol 13 (8-9) ◽  
pp. 773-782 ◽  
Author(s):  
J. S. Choi ◽  
S. T. Lim ◽  
H. J. Choi ◽  
A. Pozsgay ◽  
L. Százdi
Keyword(s):  
Rheological Properties ◽  
Polyamide 6 ◽  
Interfacial Interaction ◽  
Clay Nanocomposites

Integrated Leachate Treatment Technology

2020 ◽  
pp. 204-220
Author(s):  
Zawawi Daud ◽  
Halizah Awang
Keyword(s):  
Organic Compounds ◽  
Landfill Leachate ◽  
Combined Treatment ◽  
Treatment Technology ◽  
Leachate Treatment ◽  
Chemical Treatments ◽  
Physico Chemical ◽  
Effective Removal ◽  
Removal Of Heavy Metals ◽  
Pre Treatment

In this chapter, the performance of combined treatment of municipal landfill leachate is reviewed. Although individual physico-chemical treatments are suitable for the removal of heavy metals and hydrolyzation of some organic compounds, a combination of two physico-chemical treatments or physico-chemical and biological is required for optimum treatment of stabilized landfill leachate. A combination of two physico-chemical treatments can give optimum results in removal of recalcitrant organic compounds from stabilized leachate, as reflected by a significant decrease of the COD values after treatment. On the other hand, a combination of physico-chemical and biological treatments is required to achieve effective removal of NH3-N and COD with a substantial amount of biodegradable organic matter. In many cases, physico-chemical treatments are suitable for pre-treatment of stabilized leachate. The objective of this paper is to highlight various types of integrated leachate treatments as it has been difficult to get optimum efficiency from single approached treatment.

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