Browsing Polymer Science and Engineering by Issue Date
Now showing items 21-40 of 162
-
A study of thermoplastic starch preparation in twin screw extruder using native and modified tapioca starch.
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 12/7/2019)This objective of this work was to study types and contents of plasticizers was effect to prepare thermoplastic starch from native or modified tapioca starch (NT, KFM) by using internal mixer and the effect of Ethylene ... -
Morphology and mechanical properties ofbacterial cellulose/modified natural rubber blend
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 12/7/2019)The aim of this research is to improve the elasticity of bacterial cellulose with natural rubber and modified natural rubber. Dextrin-grafted epoxidized natural rubber (ENR-Dex) was obtained by grafting dextrin onto ENR. ... -
Development of antibacterial food packaging films from polymer blend between poly(butylene succinate) and poly(butylene adipate-co-terephthalate)
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 17/8/2018)This research aimed to study the preparation of antibacterial food packaging films from polymer blends between PBS/PBAT with and without peroxide as a reaction initiator then coated with chitosan or zinc oxide. In part 1, ... -
Preparation of polymer composite from biodegradable polymers and coffee bean waste for agriculture application
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 17/8/2018)This research was aimed to study feasibility to improve properties of PBS to be suitable for agriculture application. The study was divided into two parts. The first part was performed to improve properties of PBS by ... -
Development of food packaging films from poly(butylene succinate) coating with microcrystalline cellulose
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 17/8/2018)The objective of this work was to develop gas barrier properties of food packaging films which were biodegradable polymer. The food packaging films were prepared from poly(butylene succinate); PBS films coated with ... -
Synthesis of Copolycarbonate from CO2 and Probability to Improve Impact properties of Poly (lactic acid)
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 17/8/2018)This work aimed to study the preparation of copolycarbonate based on carbon dioxide (CO2) and 1, 2-butylene oxide using zinc glutarate (ZnGA) as a catalyst. The effect of reaction time, temperature, and pressure on the ... -
Effect of NR, NBR composition and nanofiller on BR foaming.
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 17/8/2018)Blend of NR and BR is high flexibility and abrasion resistance. Nevertheless, NR/BR blend has some drawbacks such as poor non-polar solvent resistance. NBR compound has an excellent resistance to non-polar oils. Foam ... -
Study and comparison mechanical properties of different Poly(lactic acid) grades with filler and plasticizers
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 17/8/2018)The aim of this research was to study and compare the effect of plasticizer type and content including the addition of talcum on mechanical and dynamic mechanical properties of poly(lactic acid). Two types of plasticizer ... -
Study the effect of In-situ micro fibrillation of PE on properties of PLA/polyolefin blend
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 17/8/2018)Poly (lactic acid), PLA is widely accepted because it is a biodegradable thermoplastic that can be produced from renewable resources. PLA has good mechanical performances, transparent and barrier properties. However, it ... -
Polybutylene succinate porous scaffold prepared by fused deposition modeling and salt leaching techniques for drug delivery application
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 18/6/2021)A scaffold is a biomedical appliance for tissue restoration that can be used to achieve drug delivery purposes. The objective of this research was to prepare polybutylene succinate scaffolds fabricated by fused deposition ... -
Study and properties enhancement of biodegradable polymer with recycled poly(ethylene terephthalate)
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 18/6/2021)This research was aimed to enhance properties of PLA by blending PLA with RPET, which the effect of different grades of RPET, RPET content and chain extender content on properties of polymer blends were studied. Two grades ... -
Preparation and characterization of bio - foam from polymer blends of polylactic acid and polybutylene succinate
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 18/6/2021)Nowadays, plastics are widely used but they are non-biodegradable plastics which have been caused serious environmental pollutions due to the degradability issue, especially consumable food packaging. In this research, ... -
PREPARATION AND PROPERTIES OF HOLLOW GLASS MICROSPHERES REINFORCED POLYAMIDE 11 COMPOSITES
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 2/1/2019)This research aimed to study the preparation of silane treated hollow glass microspheres (HGMs) reinforced polyamide 11 (PA11) composites, which the research was divided into two parts. The first part studied effect of ... -
Effect of nanofiller on in-situ fibrillation of dispersed PE phase in PLA blend.
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 2/1/2019)This research is aimed to improve ductility of PLA by blending with PE containing different branched structures which are HDPE, LLDPE and LDPE. The films of PLA/PE with various contents of PE at 5-30 % by weight were ... -
Improvement of mechanical properties and investigation of thermal stability of PHBV with bio-polymer blend and polymer composite method
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 2/7/2021)Poly(hydroxybutylate-co-hydroxyvalerate (PHBV) possesses good mechanical properties. However, this polymer has limitations such as narrow processing window and low impact resistance. Therefore, in this research thermal ... -
Preparation and characterization of poly(butylene adipate-co-terephthalate) biocomposites films for extended shelf-life of fruits
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 2/7/2021)Nowadays, packagings are widely used in post-harvest agro industry which subsequently caused the environmental problems due to it is not biodegradable. In this research, biodegradable materials i.e., Polybutylene ... -
Preparation and characterization of ternary blend of thermoplastic starch/poly(hydroxybutyrate-co-hydroxyvalerate)/poly(vinyl alcohol)
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 2/7/2021)This research aims to study the preparation of thermoplastic starch (TPS)/polyvinyl alcohol (PVOH) blend with the reactive agent as Joncryl® ADR-4300 and Dicumyl peroxide by adding poly(hydroxybutyrate-co-hydroxyvalerate) ... -
Study and preparation of PLA/PEG blended films incorporated with antimicrobial agent for prolonging shelf-life of mushroom
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(Silpakorn University, 2/7/2021)The aim of this research is to develop biodegradable polymer as poly(lactic acid),PLA for mushroom shelf life extension packaging. There are 4 parts : the first part is the determination on plasticizer as poly(ethylene ... -
การลดปริมาณของเสียที่เป็นพิษในการย้อมผ้าไหมด้วยสีธรรมชาติโดยการทำให้เกิดโครงสร้างของสารอนินทรีย์ที่ทำหน้าที่เชื่อมโยง
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(มหาวิทยาลัยศิลปากร, 2003) -
การรวมการย้อมและการตกแต่งสำเร็จของผ้าฝ้ายเป็นขั้นตอนเดียวโดยใช้กรดซิตริกเป็นสารตกแต่งสำเร็จ
Collection: Theses (Master's degree) - Polymer Science and Engineering / วิทยานิพนธ์ - วิทยาการและวิศวกรรมพอลิเมอร์Type: Thesis(มหาวิทยาลัยศิลปากร, 2003)