Structure and properties of polyamides‐epoxidized elastomers blends

Steller, Ryszard; Micewicz, Ewa; Meissner, W.; Pigłowski, J.; Haponiuk, Józef T.

doi:10.1002/app.22599

Cited by 6 publications

(7 citation statements)

References 15 publications

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“…Powy¿sze dane mog¹ wskazywaae, ¿e o mieszalnooeci epoksydowanych elastomerów (ENR, ESBS) zarówno z nowolakiem, jak i z innymi funkcjonalnymi polimerami termoplastycznymi, np. alifatycznymi poliamidami, decyduje przede wszystkim stopieñ epoksydowania a nastêpnie ich budowa chemiczna [22][23][24]. Wymieszanie sk³adników na poziomie cz¹steczkowym w warunkach odpowiednio du¿ego stê¿enia grup reaktywnych powinno u³atwiaae reakcjê miêdzy nimi.…”

Section: Rys 3 Krzywe Lepkooeci Nowolaku I Jego Mieszanin Z 20 % Kauc...unclassified

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Blends of novolac resins with epoxidized elastomers

Steller¹,

Zuchowska²,

Meissner³

et al. 2012

Polimery

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Mieszaniny ¿ywic nowolakowych z epoksydowanymi elastomeramiStreszczenie -Przedstawiono wyniki badañ wybranych w³aoeciwooeci mieszanin ¿ywicy nowolakowej z kauczukiem naturalnym (NR/NBR) lub kopolimerem blokowym styren-butadien-styren (SBS/ESBS) o ró¿nym stopniu epoksydowania wi¹zañ podwójnych. Ró¿nice w³aoeciwooeci oewiad-cz¹ o przebiegu reakcji miêdzy sk³adnikami mieszanin. Stwierdzono, ¿e istotny wp³yw na w³aoeciwooeci a pooerednio na reaktywnooeae uk³adów wywieraj¹: stopieñ epoksydowania, rodzaj i udzia³ elastomeru oraz warunki utwardzania, tj. temperatura, czas i dodatek urotropiny. S³owa kluczowe: kauczuk naturalny, elastomer termoplastyczny, ¿ywica nowolakowa, reaktywne przetwarzanie, w³aoeciwooeci mechaniczne i reologiczne. BLENDS OF NOVOLAC RESINS WITH EPOXIDIZED ELASTOMERSSummary -This paper presents the results of a study on selected properties of the blends of novolac resin with natural rubber (NR/NBR) and styrene-butadiene-styrene block copolymer (SBS/ESBS) with various degree of double bond epoxidation. The differences in properties indicate that the reaction between blend components took place. It was found that the degree of epoxidation, the type and content of elastomer as well as the hardening conditions, i.e. temperature, time and urotropine addition, have a significant effect on the blend properties and indirectly on the reactivity of the system.

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Section: Rys 3 Krzywe Lepkooeci Nowolaku I Jego Mieszanin Z 20 % Kauc...unclassified

“…W naszych poprzednich pracach zbadano reaktywnooeae poliamidów alifatycznych (PA 6, PA 6,6, PA 12) z epoksydowanymi elastomerami, takimi jak: ESBS, EBR, ESBR [22,23]. Wykazano, ¿e zachodzi reakcja miêdzy grupami funkcyjnymi PA 6 a grupami epoksydowymi elastomerów, skutkuj¹ca popraw¹ w³aoeciwooeci dynamicznych mieszanin PA 6-ESBS, zawieraj¹cych 5, 10 lub 15 % ESBS.…”

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Blends of novolac resins with epoxidized elastomers

Steller¹,

Zuchowska²,

Meissner³

et al. 2012

Polimery

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“…To date, the prevailing traditional petroleum-derived plastics employed for diverse purposes encompass high-density and low-density polyethylene (HDPE and LDPE), polyamide (PA), polypropylene (PP), and poly(ethylene terephthalate) (PET). 1 This has resulted in the emergence of worldwide concern regarding plastic pollution. Thus, the European countries foster the industry to reconsider production methods in order to decrease the use of fossil resources and to minimize the environmental impact of the products throughout their whole life cycle.…”

Section: ■ Introductionmentioning

confidence: 99%

Ionic Liquids versus Deep Eutectic Solvent: A Tunable Platform for the Design of Biopolymer Blends

Bensalem,

Chabane,

Ababsa

et al. 2024

ACS Sustainable Chem. Eng.

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Presently, governments across the globe are encouraging the industry to reassess their manufacturing techniques with the aim of reducing reliance on fossil resources and mitigating the environmental consequences associated with products over their entire life cycle. Hence, the advancement of novel biobased and biodegradable materials poses a significant challenge. This study involves the preparation of blends consisting of poly(butylene succinate adipate) (PBSA) and poly-(hydroxybutyrate) (PHB) in an 80:20 ratio. The blends are generated by a melt mixing process utilizing ionic liquids (ILs) and deep eutectic solvent (DES) as interfacial agents. The interfacial agents are added at a concentration of only 2 wt %. Consequently, there is a notable decrease in the size of PHB particles and an enhancement in the interfacial adhesion between PBSA and PHB, resulting in the attainment of a uniform morphology with particle sizes ranging from 0.4 to 1 μm. Subsequently, the utilization of ionic liquids (ILs) or deep eutectic solvent (DES) resulted in a notable elevation of the glass-transition temperature, shifting it from −48 to −18 °C for the poly(butylene succinate-co-adipate) (PBSA) polymer. This observation suggests an improved compatibility of the poly(hydroxybutyrate) (PHB) phases inside the PBSA matrix. Ultimately, the improved compatibility between poly(butylene succinate-co-adipate) (PBSA) and poly(hydroxybutyrate) (PHB) resulted in enhanced mechanical properties, including a higher Young's modulus (2186 compared to 896 MPa) and elongation at break (301 compared to 138%). Additionally, this compatibility led to increased thermal stability, with a temperature increase of 100 °C. Additionally, the inclusion of a limited quantity of these interfacial agents demonstrated substantial decreases in oxygen permeability (by 93%) and water vapor penetration (by 82%), underscoring the considerable potential of these compostable and biodegradable blends for many applications.

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“…[39] In blends containing 0-15 wt% non-epoxidized/epoxidized elastomers (statistical copolymer butadiene-styrene/epoxidized statistical copolymer butadiene-styrene or linear block copolymer SBS/ epoxidized linear block copolymer SBS) and aliphatic polyamide (PA6, PA66, and PA12), the mechanical properties of blends were improved and the glass transition temperature (T g ) was increased with the extension of blending time, which was regarded as an indicator of reaction between epoxy and carboxyl groups in the blends. [10,48] The increased toughness of polylactic acid (PLA) by epoxidized polybutadiene (EPB) shows that the introduction of active groups in blends is an effective means to adjust the phase structure and to change the properties of blends. [49] Thus, the reparations of both chain extension and phase interface are the keys to improve the toughness of R-ABS.…”

Section: Introductionmentioning

confidence: 99%

“…[ 9 ] From the viewpoint of processing, ABS from the discarded products can be processed repeatedly for reuse. [ 10 ] However, as a result of aging arising from the service, the mechanical properties of recycled ABS (R‐ABS) are usually inferior to virgin ABS (V‐ABS), especially the decreased impact strength. This limits the application and reuse of R‐ABS.…”

Section: Introductionmentioning

confidence: 99%

Chain Extension, Phase Interface Reparation and Mechanical Property of Recycled Acrylonitrile‐Butadiene‐Styrene by Epoxidized Styrene‐Butadiene‐Styrene

Shu

et al. 2020

Macro Materials & Eng

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For ABS, the styrene-acrylonitrile (SAN) block copolymer phase is the matrix phase, polybutadiene (PB) phase is the disperse phase, and styrene-acrylonitrile block copolymer grafted polybutadiene (SAN-g-PB) is the compatibilizer. [9] From the viewpoint of processing, ABS from the discarded products can be processed repeatedly for reuse. [10] However, as a result of aging arising from the service, the mechanical properties of recycled ABS (R-ABS) are usually inferior to virgin ABS (V-ABS), especially the decreased impact strength. This limits the application and reuse of R-ABS. [10] Recycling is an efficient way to manage and treat waste plastics. It has been a significant section of industry since plastics now involve every aspect of our living. [11-25] The International Organization for Standardization (ISO) and the American Society for Testing and Materials (ASTM) have standardized the classification and there are four main techniques for recycling waste plastics. These include reuse (primary), mechanical recycling (secondary), chemical recycling (tertiary), and energy recovery (quaternary). [26-28] Plastic recycling is a valuable practice to save 20-50% from the point of market price in comparison with their virgin counterparts. [29,30] However, lots of recycled The demand for processing recycled acrylonitrile-butadiene-styrene copolymer plastics (R-ABS) grows fast. Herein, epoxidized styrene-butadienestyrene (ESBS) with reactive groups including polybutadiene (PB) phase, epoxidized polybutadiene (EPB) phase and polystyrene phase is prepared by modifying SBS with an in situ peroxyformic acid method. Both chain extension and phase interface reparation of R-ABS are successfully reported by simple melt blending. Compared with R-ABS, when ESBS content is 15 wt%, the average molecular weight (M w) of the ESBS/R-ABS is increased from 118.01 to 612.51 kDa. The particle size of the dispersed phase is decreased obviously. The compatibility between these two phases became better. The average notch impact strength of R-ABS is 5.72 kJ m −2. When the ESBS content is 15 wt%, the average notch impact strength of ESBS/R-ABS reaches 13.90 kJ m −2 , which is increased by 143% compared with that of R-ABS. The notch impact strength of ESBS/R-ABS is close to that of virgin ABS. The reported high-value usage of R-ABS has a great potential for industrial-scale applications.

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Structure and properties of polyamides‐epoxidized elastomers blends

Cited by 6 publications

References 15 publications

Blends of novolac resins with epoxidized elastomers

Blends of novolac resins with epoxidized elastomers

Ionic Liquids versus Deep Eutectic Solvent: A Tunable Platform for the Design of Biopolymer Blends

Chain Extension, Phase Interface Reparation and Mechanical Property of Recycled Acrylonitrile‐Butadiene‐Styrene by Epoxidized Styrene‐Butadiene‐Styrene

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