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Now showing items 1-20 of 85

3D printing of graphene/thermoplastic elastomer composites

Warrayut Kanabenja (Chulalongkorn University, 2017)

Graphene based thermoplastic polyurethane composites filaments was prepared by melt blending process prior to fabricate with 3D printing technique. The effects of different graphene loading (0.05 wt% - 0.20 wt%) in TPU ...
All-cellulose nanocomposites film from sisal fiber

Noppon Somsesta (Chulalongkorn University, 2015)

In this work, self-reinforced cellulose nanocomposite films were produced using cellulose and nanofiber from sisal fiber as matrix and reinforcement, respectively. Cellulose nanofiber was prepared via catalytic oxidation ...
Antibacterial properties of polyethylene and silicone rubber surface-modifiled by plasma generated from plasma focus device

Werawat Sriprapai (Chulalongkorn University, 2009)

Surface modifications of polyethylene and silicone rubber were done using plasma generated from a plasma focus device operated with different types of gas including nitrogen, oxygen and argon. The number of plasma shots ...
Applications of enzymes in cotton yarn and fabric preparation processes

Theeradol Rungraungkitkrai, 1974- (Chulalongkorn University, 1999)

Cotton plain and twill weave fabrics, cotton jersey knits and cotton yarn were treated under enzymatic and conventional preparation processes. Samples desized with amylase enzyme show complete sizes removal. Samples scoured ...
Bacterial imprinted polymer : innovation for leptospira diagnostic kit

Suraphun Aungwerojanawit (Chulalongkorn University, 2016)

Molecular imprinted polymer is a functional polymer that has gained attention in many researches due to its abilities to recognize and bind the molecules which are imprinted onto the polymer. In this study, we aimed to ...
Biodegradability and mechanical properties of silane treated microcrystalline cellulose / poly(lactic acid) composites

Tanawat Tayommai (Chulalongkorn University, 2011)

Biodegradable plastic reinforced natural fiber composites are finding applications in many fields ranging from construction industry to food industry. The use of natural bio based fillers as reinforcements in composites ...
Biodegradability of microcrystalline cellulose/poly(lactic acid)-graftedmaleic anhydride/poly(lactic acid) composites

Dhananya Masamran (Chulalongkorn University, 2011)

This research aimed to prepare microcrystalline cellulose (MCC)/PLA composite films in which MCC was obtained from acid hydrolysis of cotton fabric (CT-MCC) by hydrochloric acid. In addition, maleic anhydride – grafted-polylactic ...
Biodegradation of LDPE/banana starch films compatibilized with ethylene vinyl acetate copolymer

Kanjana Charoenkongthum (Chulalongkorn University, 2001)

This research investigated the effects of starch and compatibilizer contents on tensile properties and biodegradability of new polymer blend films from low-density polyethylene (LDPE) and starch. The compatibilizer used ...
Characterization of highly loaded calcium carbonate filled high density polyethylene composites

Sutida Teimprateeb (Chulalongkorn University, 1997)

The processing and mechanical properties of calcium carbonate filled high density polyethylene composites with varying filler volume fraction up to 0.40 were investigated. Using scanning electron microscopy technique, a ...
Chemical Modifcation of Cellulosic Fibers to improve Fixation of Rea Ctivedyes

Papida Pornsuriyasaak (Chulalongkorn University, 1997)

The modification of cotton cellulose by chemical treatment was studied. The study was aimed to dye cotton fabric in the absence of alkali. The principle method of modification was to incorporate a free amino group into ...
Chemical recycling of rigid polyurethane foam

Supanee Keesuwan (Chulalongkorn University, 1997)

Chemical recycling of rigid polyurethane (PU) foams been investigated in this work. PU foam was decomposed through the transesterification reaction. Diethanolamine was used as a decomposer for glycolysis of PU foam. This ...
Coating of polyamide fibers with polyelectrolyte multilayer thin films to improve wash fastness

Chularat Iamsamai (2005)

Polyelectrolyte multilayer thin films (PEM) were coated on polyamide fibers, namely nylon and silk fibers, using the Layer-by-Layer technique and characterized using the spectrophotometry technique. PEM built from poly ...
Combining reactive dyeing and finishing of cotton in one stage process

Sirinun Kaenthong (Chulalongkorn University, 1998)

A simultaneous dyeing and finishing of cotton fabric was investigated. The reactive dye was prepared by the chemical modification of commercial reactive dye. The butanetetracarboxylic acid (BTCA) was used as a crosslinking ...
Comparative studies of blending techniques and dispersibility of organic pigments in medium density polyethylene powder

Ratchanu Buhngachat (Chulalongkorn University, 2003)

This research investigated the effects of pigment type, pigment contents, blending techniques, and manufacturing processes on the mechanical, physical, and thermal properties of colored MDPE which composed of medium density ...
Development of diagnostic kit for detection of pathogenic Leptospira- specific protein by water soluble chitosan derivatives

Naruemon Sangkapong (Chulalongkorn University, 2016)

Responsive polymers have been studied intensively in various field of applications. The aim of this study was to use water soluble chitosan derivatives conjugated with antigen or antibody for rapid detecting Leptospira-specific ...
Effect of Beta-nucleator on crystalline structure and mechanical properties of isotactic polypropylene

Tikhamporn Meesane (Chulalongkorn University, 1999)

ß structure (hexagonal) of isotactic polypropylene (PP) can be generated by an addition of ß nucleator. The nucleator used in this study is quinacridone (Permanent Red E3B). The samples are blended or mixed, by mechanical ...
Effects of composition and processing variables on barrier property of liquid crystalline polymer/polyethylene blend films

Tatiya Trongsatikul (Chulalongkorn University, 2003)

Cast films of liquid crystalline polymer I polyethylene were investigated. Effects of compatibilizer and LCP content as well as processing parameters i.e., processing temperature profile, use of mixing elements, screw ...
Effects of crosslinking on mechanical properties of hydroxy-terminated polybutadiene binder

Ruangsak Chongruangsri (Chulalongkorn University, 1998)

A series of composite propellant binder compositions synthesized by the reaction of 4,4-diphenyl methane disocyanate with hydroxy-terminated polybutadiene, HTPB instead of standard polyols. Composition studies on different ...
Effects of plasticizers on physical and mechanical properties of modified cellulose films from waste cotton fabrics

Panita Hongphruk (Chulalongkorn University, 2009)

The aim of this research was to study the effects of type and concentration of plasticizer on the properties of cellulose laurate films. Firstly, cellulose from waste cotton fabric was modified with lauroyl chloride under ...
Effects of processing agents on bead formation of electrospun poly(ethylene oxide) nanofibers

Kunawan Arayanarakul (Chulalongkorn University, 2004)

Electrospun fiber often have beads as "by products". This research is therefore aimed at investigating the effects of processing agents, i.e. solution concentration, addition of poly(ethylene glycol) (PEG) of different ...

Now showing items 1-20 of 85

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