Thermal, morphological, and mechanical characteristics of polypropylene/polybutylene terephthalate blends with a liquid crystalline polymer or ionomer

Zhang, Baoyan; Sun, Qiu-Ju; Li, Qianyue; Wang, Yang

doi:10.1002/app.24797

Cited by 17 publications

(9 citation statements)

References 22 publications

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“…The improvement of compatibilization between PBT and PMHS is possible because of the PBT/PMHS copolymer produced by hydrosilylation. This point is also demonstrated by Zhang et al They added from 4% to 12% side‐chain liquid crystalline ionomer (SLCI), PMHS/butylene terephthalate, to PP/PBT blend and they found that the domain size of the PBT phase decreased significantly, the diameter of the largest particle of PBT changed from10 μm to almost disappearance. Through FTIR and SEM, they identified the intermolecular interaction between sulfonate acid groups of SLCI and PBT phase as they both contain aromatic ring and ester groups.…”

Section: Resultssupporting

confidence: 53%

Polybutylene terephthalate reactive blending with polymethylhydrosiloxane by ruthenium‐catalyzed carbonyl hydrosilylation reaction

Cassagnau

Cruz-Boisson

et al. 2017

J. Polym. Sci. Part A: Polym. Chem.

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Carbonyl hydrosilylation reaction was developed to prepare reactive blending between PBT and polymethylhydrosiloxane (PMHS). It focused on the addition reaction of Si–H groups from PMHS onto carbonyl groups from PBT catalyzed by triruthenium dodecacarbonyl (Ru3(CO)12). An approach on PBT model compounds was carried out and investigated by NMR spectroscopy to evidence the potentiality and efficiency of carbonyl hydrosilylation reaction. At temperatures up to 100 °C, the hydrosilylation reaction can reach 33 mol% conversion in a few hours. Side reactions were also highlighted. Such side reactions can reach more than 23 mol% of the final products when temperature increases to 180 °C. Then hydrosilylation reaction was extended to PBT modification with a molar ratio of ester group/SiH = 3.5 and viscosity ratio polysiloxane/PBT = 4.0 × 10−5. The reaction was carried out in an internal mixer at 220 °C and followed through the evolution of the torque of the reactional medium. Samples for different processing times were investigated by SEM and rheology. From these analyses, the dispersion of PMHS was promoted with diameters of few micrometers. The elastic behavior of final material was characteristic of solid or gel‐like structures, suggesting a network structure formation consistent with the gel fraction increase from 0 to 0.55. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 1855–1868

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Section: Resultssupporting

confidence: 53%

Polybutylene terephthalate reactive blending with polymethylhydrosiloxane by ruthenium‐catalyzed carbonyl hydrosilylation reaction

Cassagnau

Cruz-Boisson

et al. 2017

J. Polym. Sci. Part A: Polym. Chem.

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“…According to the author, the T c of PBT component decreased on compatibilization, indicating that SLCI phase acted as a nucleating agent, and affected the crystallization rate of PBT. Such a decrease in the crystallization temperature is known to enhance the compatibilization of immiscible mixtures …”

Section: Characterization Of Pp/pa6/talc Ternary Blendsmentioning

confidence: 99%

Compatibilization of polypropylene/polyamide 6 blends using new synthetic nanosized talc fillers: Morphology, thermal, and mechanical properties

Yousfi

Livi

Dumas

et al. 2014

J of Applied Polymer Sci

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New synthetic nanotalc and a commercially available natural fine talc (LuzenacV C A3) were chosen in order to establish a comparative study in terms of their contributions on the improvement of the morphology as well as the final properties of PP/PA6 blends prepared by melt processing. At first, the TEM and SEM micrographs showed that both talc particles have a preferential affinity for the more hydrophilic polyamide 6 phase compared with the continuous PP matrix. Moreover, in both cases, the addition of talc fillers induces a significant decrease of the size of the PA6 domains but the better compatibilization efficiency was obtained in the presence of synthetic nanotalc particles. In this work, the positive change induced by the talc nanofillers on the crystallization kinetics and final morphology was highlighted. In addition, compared with natural talc, a highly level of dispersion of talc layers has been obtained with the synthetic nanotalc which is more hydrophilic. Thus, this better dispersion greatly improves the thermal stability of PP/PA6 blends and leads to better mechanical properties (1 40% in Young's modulus).

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“…Other compatibilizers found to be used in polyolefin/polyester systems include PP grafted with phenol formaldehyde,29 isocyanate30 and itaconate groups,31 liquid‐crystalline ionomers and polymers,32, 33 epoxidized ethylene propylene diene rubber,34 and bismaleimide35 and silane36 molecules. These publications reported the existence of specific interactions between those materials and PET or PBT that caused some level of blend compatibilization.…”

Section: Introductionmentioning

confidence: 99%

Compatibilization of polypropylene/ poly(3‐hydroxybutyrate) blends

Sadi

Kurusu

Fechine

2011

J of Applied Polymer Sci

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Blending polypropylene (PP) with biodegradable poly(3-hydroxybutyrate) (PHB) can be a nice alternative to minimize the disposal problem of PP and the intrinsic brittleness that restricts PHB applications. However, to achieve acceptable engineering properties, the blend needs to be compatibilized because of the immiscibility between PP and PHB. In this work, PP/PHB blends were prepared with different types of copolymers as possible compatibilizers: poly(propylene-g-maleic anhydride) (PP-MAH), poly (ethylene-co-methyl acrylate) [P(E-MA)], poly(ethylene-coglycidyl methacrylate) [P(E-GMA)], and poly(ethylene-comethyl acrylate-co-glycidyl methacrylate) [P(E-MA-GMA)].The effect of each copolymer on the morphology and mechanical properties of the blends was investigated. The results show that the compatibilizers efficiency decreased in this order: P(E-MA-GMA) > P(E-MA) > P(E-GMA) > PP-MAH; we explained this by taking into consideration the affinity degree of the compatibilizers with the PP matrix, the compatibilizers properties, and their ability to provide physical and/or reactive compatibilization with PHB.

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Thermal, morphological, and mechanical characteristics of polypropylene/polybutylene terephthalate blends with a liquid crystalline polymer or ionomer

Cited by 17 publications

References 22 publications

Polybutylene terephthalate reactive blending with polymethylhydrosiloxane by ruthenium‐catalyzed carbonyl hydrosilylation reaction

Polybutylene terephthalate reactive blending with polymethylhydrosiloxane by ruthenium‐catalyzed carbonyl hydrosilylation reaction

Compatibilization of polypropylene/polyamide 6 blends using new synthetic nanosized talc fillers: Morphology, thermal, and mechanical properties

Compatibilization of polypropylene/ poly(3‐hydroxybutyrate) blends

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