Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/14383
ชื่อเรื่อง: Utilization of ultrafine acrylate rubber particles as a toughening agent for poly(lactic acid)
ผู้แต่ง: Petchwattana N.
Covavisaruch S.
Euapanthasate N.
Keywords: Degree of crystallinity
Flexural modulus
Fractographs
Microscopic observations
Poly(lactic acid)
Polylactic acids
Rubber particles
Rubber toughening
Tensile elongation
Toughening agents
Ultrafine
Fracture mechanics
Impact strength
Lactic acid
Mechanical properties
Rubber
วันที่เผยแพร่: 2012
บทคัดย่อ: The present research aims to utilize ultrafine elastomeric particles to reduce the problem of brittleness in poly(lactic acid) (PLA). Particles of acrylate rubber were added to PLA at the range from 0.1 to 10. wt%. Maximum reduction of the flexural modulus and the tensile modulus was achieved by 20 and 45% respectively when the acrylate rubber was applied at 10. wt%. The tensile elongation at break of the rubber-modified PLA was also raised around 50 times from the 3.5% observed in the neat PLA to 200%. The toughening efficiency of the ultrafine rubber particles was also reflected through the significant increase in the impact strength by fourfolds. Fractographs of the acrylate rubber-modified PLA verified plastic deformation and good dispersion of the rubber particles in the PLA. Microscopic observation revealed that the ultrafine acrylate rubber played an important role inducing numerous crazes as the mechanism for energy absorption. The introduction of the ultrafine acrylate rubber particles by only 0.5. wt% helped increasing the degree of crystallinity. © 2011 Elsevier B.V.
URI: https://ir.swu.ac.th/jspui/handle/123456789/14383
https://www.scopus.com/inward/record.uri?eid=2-s2.0-83855160769&doi=10.1016%2fj.msea.2011.10.063&partnerID=40&md5=c658cea8d3c79a2ac452bf833ed3c0cf
ISSN: 9215093
Appears in Collections:Scopus 1983-2021

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