Mechanical properties, morphology, and crystallization behavior of polypropylene/elastomer/talc composites

Wu, Jyh‐Horng; Chen, Chien-Wen; Wu, Yao-Tsu; Guan-ting, WU; Kuo, M. C.; Tsai, Yuhsin

doi:10.1002/pc.22914

Cited by 28 publications

(19 citation statements)

References 37 publications

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“…The degree of crystallinity ( χ c ) of iPP was determined from Eq . ;

χ_{c} = true(Δ H_{c} / Δ H_{m}^{o} w true) \times 100

where Δ H c is the crystallization enthalpy of the tested sample and

Δ H_{m}^{o}

is the melting enthalpy of the 100% crystalline iPP with a value of 209 J/g and w is the weight fraction of iPP in the sample.…”

Section: Methodsmentioning

confidence: 99%

“…The iPP is one of the most important semicrystalline thermoplastics that is widely used in many areas such as automobile and textile industries, household appliance, construction, food packaging, and container owing to its versatility and useful properties with low cost, low density, nontoxicity, easy processing, and recyclability . However, iPP has relatively poor notched impact resistance, especially at low temperature, and thus its application as an engineering plastic is limited . This is because iPP is a crystallizable plastic that generally forms large crystallites during the crystallization process .…”

Section: Introductionmentioning

confidence: 99%

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Effects of analcime zeolite synthesized from local pottery stone as nucleating agent on crystallization behaviors and mechanical properties of isotactic polypropylene

Chuayjuljit

Larpkasemsuk

Chaiwutthinan

et al. 2017

Vinyl Additive Technology

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This study reported the synthesis of analcime zeolite (AN‐zeolite) from a local pottery stone via hydrothermal method using 2 M NaOH at 120°C for 8 h in a Teflon‐lined stainless steel autoclave. The as‐synthesized AN‐zeolite was characterized for its phase composition, morphology, and particle size using X‐ray diffraction (XRD) analysis, scanning electron microscopy, and dynamic light scattering analysis, respectively. Subsequently, the AN‐zeolite was used as a nucleating agent for isotactic polypropylene (iPP). The prepared nucleated iPP was analyzed for its crystallization behaviors (by XRD, polarized optical microscopy, and differential scanning calorimetry), mechanical properties (impact strength and tensile properties), and morphology. It was found that the AN‐zeolite can induce to form a mass of α‐crystal and only a little β‐crystal in the iPP, along with the significant increase in the nuclei content, crystallization rate, and crystallization temperature, but a substantial decrease in the spherulite size. In addition, the incorporation of an appropriate amount of the AN‐zeolite into the iPP caused an increase in the impact strength (at 1.25 wt% optimal), tensile strength (at 1.25 wt% optimal), and Young's modulus (at 2 wt% optimal), but a deterioration of the elongation at break with increasing AN‐zeolite content compared with the neat iPP. J. VINYL ADDIT. TECHNOL., 24:E85–E95, 2018. © 2017 Society of Plastics Engineers

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“…The degree of crystallinity ( χ c ) of iPP was determined from Eq . ;

χ_{c} = true(Δ H_{c} / Δ H_{m}^{o} w true) \times 100

where Δ H c is the crystallization enthalpy of the tested sample and

Δ H_{m}^{o}

is the melting enthalpy of the 100% crystalline iPP with a value of 209 J/g and w is the weight fraction of iPP in the sample.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of analcime zeolite synthesized from local pottery stone as nucleating agent on crystallization behaviors and mechanical properties of isotactic polypropylene

Chuayjuljit

Larpkasemsuk

Chaiwutthinan

et al. 2017

Vinyl Additive Technology

View full text Add to dashboard Cite

show abstract

“…Polypropylene (PP) is a recyclable thermoplastic, that is, it melts when heated and hardens again when cooled, in a reversible process. Moreover, PP is easily mixed, primarily with organic reinforcing loads such as natural or inorganic fibers, including calcium carbonate, clay and talcum, and is widely used in structural applications [39][40][41].…”

Section: The Use Of Polypropylene In a Composite Or Mixturementioning

confidence: 99%

Study of the Technical Feasibility of the Use of Polypropylene Residue in Composites for Automotive Industry

Dias¹,

Guimarães²,

Nascimento³

et al. 2019

Plastics in the Environment

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Polypropylene (PP) is widely used in short-term use artifacts, rapidly discarded and should partially replace neat PP. In addition, it is one of the polymers most used in the automobile industry. This study shows the technical feasibility of partially substituting neat PP for a post-consumer counterpart (PP r), as well as adding ground glass (GP), used as filler in the polymer matrix. Mechanical and thermal properties of the recycled blends (PP/PP r) and composites (PP/PP r /GP) were evaluated. The results demonstrated that the blend with the highest PP r content obtained a statistically significant decline in elastic modulus, but adding 5 wt% of GP to this blend increased this property, achieving a similar value in relation to neat PP. The composite developed may be a promising tailor-made product with properties resembling those of the virgin plastic. Thus, the automotive industry seems to be a good option for the use of PP r and GP composites and blends, without increasing product requirements.

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“…However, a marginal improvement (1.7%) was noticed in the PP/LLDPE composite containing 10 wt.% talc and 10 wt.% magnesium carbonate. [ 12 ] A considerable improvement in HDT was also noticed in a PP/elastomer/talc composite, [ 13 ] where the concentrations of micron‐sized talc particles and the elastomer were maintained at 25% and 15%, respectively. Depending on the type of elastomer, HDT improved from 12% in neat PP to 18% in the PP/elastomer/talc composite.…”

Section: Introductionmentioning

confidence: 99%

Influence of nucleation and growth mechanisms on the heat deflection temperature of a reactively processed polypropylene nanocomposite

Bandyopadhyay

Mekoa

Makwakwa

et al. 2021

Polymer Engineering & Sci

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The development of a reactively processed polypropylene nanocomposite (PPNC) with consequential improvements in the heat deflection temperature (HDT), Vicat softening temperature (VST), and crystallization peak temperature (Tc) is reported herein. Neat PP without nanoclay was also reactively processed to elucidate the effects of fillers on the improvement in physical properties. The results show a considerable improvement in the HDT of PPNC (77.9 °C) compared to those of neat PP (62.6 °C) and reactively processed branched PP (BPP; 69.2 °C). Moreover, the Tc of PP in PPNC improved by ~14% compared to that of neat PP. Various models of nonisothermal crystallization kinetics were employed to elucidate the nucleation and crystal growth mechanisms, and to correlate them with the observed HDT improvement in PPNC. Thermal transitions investigated by modulated differential scanning calorimetry explained the changes observed in the VSTs of all the samples. To the best of our knowledge, this is the first report on a significant improvement in HDT along with a marked increase in Tc. Such simultaneous improvements in HDT, VST, and Tc are highly desirable for applications involving the use of PP‐based materials in rigid packaging.

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Mechanical properties, morphology, and crystallization behavior of polypropylene/elastomer/talc composites

Cited by 28 publications

References 37 publications

Effects of analcime zeolite synthesized from local pottery stone as nucleating agent on crystallization behaviors and mechanical properties of isotactic polypropylene

Effects of analcime zeolite synthesized from local pottery stone as nucleating agent on crystallization behaviors and mechanical properties of isotactic polypropylene

Study of the Technical Feasibility of the Use of Polypropylene Residue in Composites for Automotive Industry

Influence of nucleation and growth mechanisms on the heat deflection temperature of a reactively processed polypropylene nanocomposite

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