สืบค้นงานวิจัย
THE EFFECT OF COUPLING AGENT AND MIXING METHODS ON PROPERTIES OF NATURAL RUBBER AND LOW DENSITY POLYETHYLENE BLENDS
W.D.M Sampath - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): THE EFFECT OF COUPLING AGENT AND MIXING METHODS ON PROPERTIES OF NATURAL RUBBER AND LOW DENSITY POLYETHYLENE BLENDS
ผู้แต่ง / หัวหน้าโครงการ (EN): W.D.M Sampath
บทคัดย่อ (EN): Coupling agents are molecular bridges at the interface between two substrates, an inorganic filler and organic polymer matrix. When incorporated into polymer systems, they often promote adhesion, improve dispersion, improve impact strength and thus reduce embrittlement. The practical utility of a polymer blend is determined by the compatibility of component polymers, which is considered as the fundamental property. It has been observed that majority of rubber-thermoplastic blends, including natural rubber (NR) and low density polyethylene (LDPE) blends are incompatible thus producing inferior properties. Thermoplastic molecules can be reshaped with heat and pressure since they do not cross-link. This provides them the property of being easily fabricated by conventional plastics processing techniques such as extrusion, injection molding and blow molding. The main of this study is to investigate the effects of titanate base coupling agent and mixing methods on NR and LDPE blends composites in terms of their physic-mechanical, chemical properties and phase morphology of blends. 50/50 NR/LDPE filled CaCo3 composites were prepared by using internal mixer (brabender) at 1500c and 60 rpm for 14 minutes. Coupling agent was incorporated into polymer matrix by three mixing routes by using brabender. In mixing I, coupling agent was added after mixing LDPE and In mixing II, coupling agent was added after mixing LDPE, NR and activators. In mixing III, coupling agent was added after mixing LDPE, NR, activators, CaCo3. Without coupling agent composite was called control. Properties of prepared composites were studied. Physico-mechanical properties were determined according to ISO standards. Composites were characterized using FTIR and morphological analyses of tensile fracture surfaces. Water absorption and gel content in p-xylene of the composites were investigated. Morphology of the tensile fracture surface of blends was observed using a transmitted light microscopy. Mixing III composite exhibited the highest tensile strength, tear strength, elongation at break percentage, hardness and gel content. FTIR spectrum peak of mixing III showed sharp peak compared to control. Mixing III showed good water resistivity and fine phase morphology and good filler dispersion among the NR and LDPE. Control showed coarse phase morphology. In overall, mixing III composite showed highest physical, chemical and morphological performance than the other mixing methods and control.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): physico-mechanical properties
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

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W.D.M Sampath. "THE EFFECT OF COUPLING AGENT AND MIXING METHODS ON PROPERTIES OF NATURAL RUBBER AND LOW DENSITY POLYETHYLENE BLENDS". ไม่ระบุหน่วยงาน. ม.ป.ป.

W.D.M Sampath. "THE EFFECT OF COUPLING AGENT AND MIXING METHODS ON PROPERTIES OF NATURAL RUBBER AND LOW DENSITY POLYETHYLENE BLENDS". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



TARR Wordcloud:
THE EFFECT OF COUPLING AGENT AND MIXING METHODS ON PROPERTIES OF NATURAL RUBBER AND LOW DENSITY POLYETHYLENE BLENDS
W.D.M Sampath
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
The Effect of Epoxidised Natural Rubber Content on the Physical Properties of the NR/ENR Blends Effect of Modification Technique on Properties of Blends of Natural Rubber and Modified Tyre Crumbs The Effect of Accelerator Combination of the Curing System on the Physical Properties of the Natural Rubber and Ethylene Propylene Diene Monomer Rubber Blends ORGANIZING PROFICIENCY TESTING FOR NATURAL RUBBER LABORATORIES – EXPERIENCE OF RRIV NATURALLY OCCURRING NANOMATRIX STRUCTURE FORMED IN NATURAL RUBBER AND ITS EFFECT ONVISCOELASTIC PROPERTIES Effect of Metal Ions on Quality of Natural Rubber Under-Flora in Rubber Plantations: Its Effect on Soil Properties ANALYSIS OF PRETREATMENT METHODS OF WASTE RUBBER TREE FOR EFFECTIVE CELLULOSE DEGRADATION Effect of Latex Coated Coconut Fibre on Cure Characteristics and Physico-Mechanical Properties of Natural Rubber-Coir Composites Effect of potassium persulfate, palm fiber length and maleic anhydride on physical properties of low grade natural rubber/cassava starch/palm fiber composite
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