نتایج جستجو برای: poly butylene terephthalate
تعداد نتایج: 86477 فیلتر نتایج به سال:
Abstract In this work new biodegradable composite materials based on poly(butylene-adipate-co-terephthalate) (PBAT) reinforced with water-soluble calcium-phosphate glass (CPG) microparticles at different filler concentration (0, 4, 10, 20 and 40 wt%) were characterized by dynamic-mechanical analysis (DMA), aging fragmentation tests. DMA results showed increasing storage modulus ( E ′) values th...
nowadays polymer nanocomposites have introduced as a new class of food packaging materials due to their enhanced mechanical, thermal, and barrier properties. in this study pet nano composites were prepared by melt blending of poly (ethylene terephthalate) pellets and mica nanoparticles. the morphology of pet/mica nanocomposites was characterized by x-ray diffraction and transmission electron mi...
In this research, thermoplastic polyurethane (TPU) and clay nanoparticles were incorporated into poly (butylene terephthalate) (PBT) to improve the impact and tensile properties. The PBT/TPU (90/10, 80/20 and 70/30) samples were prepared by melt mixing using a co-rotating twin-screw extruder followed by injection molding. At the next stage, clay nanoparticles of different weight fractions were ...
The long-term use of polyethylene mulch (PEM) films can cause plastic film residual pollution that has an adverse effect on soil health and crop quality. To address this issue, poly(butylene adipate-co-terephthalate) (PBAT), aliphatic–aromatic copolyester, is widely used in the production commercially biodegradable (BDM) films. BDMs alleviate reduce labor cost retrieving residues from field. ef...
in this work, ternary polymer blends based on polypropylene (pp)/ polyethylene terephthalate (pet) /poly(styrene-b (ethylene-co-butylene)-b-styrene) (sebs) triblock copolymer and a reactive maleic anhydride grafted sebs (sebs-g-mah) at various compositions were prepared by co-rotating twin screw extruder. the effects of pet, sebs and sebs-g-mah compatibilizer on morphology of the blends were ex...
The degradation and stability of biodegradable films determine the service length mulch in actual use. Most polymers degrade too fast to meet required durability films. objective this work is investigate behaviors poly(butylene adipate-co-terephthalate) (PBAT)/polyhydroxyalkanoate (PHA) blend Several different types stabilizers were incorporated blends provide protection for PHA/PBAT during the...
The packaging industry requires permeable materials capable of offering freshness the content. use fillers can enhance these properties to polymeric material. This work investigates effect incorporating different (organophilic clay and corn straw) on rheological, mechanical, permeability, water absorption biodegradability characteristics poly (butylene adipate co-terephthalate) (PBAT) processed...
A review is given of the academic and industrial aspects of the preparation, characterization, materials properties, crystallization behavior, melt rheology, and processing of polymer/layered silicate nanocomposites. These materials are attracting considerable interest in polymer science research. Hectorite and montmorillonite are among the most commonly used smectite-type layered silicates for...
This paper reports the thermal, morphological and mechanical properties of environmentally friendly poly(3-hydroxybutyrate) (PHB)/poly(butylene succinate) (PBS) PHB/poly[(butylene succinate)-co-(butylene adipate)] (PBSA) blends, prepared by melt mixing. The blends are known to be immiscible, as also confirmed thermodynamic analysis here presented. A detailed quantification crystalline amorphous...
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