• Title/Summary/Keyword: 열적 성질

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Synthesis and Properties of PET-PCT Copolyester I - Thermal Property and Degradation Behavior - (PET-PCT 공중합체의 합성과 물성 I - 열적성질과 분해거동 -)

  • 이원옥;김해영;백두현
    • Proceedings of the Korean Fiber Society Conference
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    • 2001.10a
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    • pp.351-354
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    • 2001

  • Poly(ethylene terephthalate) (PET)는 물리적, 기계적 성질이 우수한 엔지니어링 플라스틱의 하나로 섬유, 필름, 및 여러 가지 용도로 다양하게 사용되고 있다. PET는 DMT(dimethyl terephthalate) 또는 TPA(terephthalic acid)와 EG(ethylene glycol)를 축합 중합하여 제조한다. (중략)

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Poly(vinyl alcohol) Nanocomposite Films (II): Thermo-mechanical Properties and Morphology (폴리(비닐 알코올) 나노복합체 필름(II) : 열적-기계적 성질 및 모폴로지)

  • Ham, Shin-Kyun;Jung, Min-Hye;Chang, Jin-Hae
    • Polymer(Korea)
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    • v.30 no.6
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    • pp.545-549
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    • 2006

  • Blends of poly(acrylic acid- co-maleic acid) (PAM) with poly (vinyl alcohol) (PVA) were pre -pared in distilled water PVA/PAM/saponite (PVA/PAM/SPT) nanocomposite films were prepared with various clay contents by using the solution intercalation method. The variations of the dispersion, morphology, and thermo-mechanical properties of the nanocomposites with clay content in the range 0 to 9 wt% were examined. Up to 3 wt% clay loading, the clay particles were homogeneously dispersed in the PVA/PAM blends. However, some agglomerated structures form in the polymer matrix above a clay content of 7 wt%. The thermal stability of the hybrids was increased linearly with increasing the clay loading up to 9 wt%. The maximum strength and modulus were obtained at a clay content of 7 wt%. Thus, the addition of small amounts of clay to the PVA/PAM blends produced PVA/PAM nano-composites with improved the thermo-mechanical properties.

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