Structure-related properties of bionanocomposites based on poly(lactic acid), cellulose nanocrystals and organic impact modifier

Kód výsledku v IS VaVaI

RIV/46747885:24210/19:00005989 - isvavai.cz

Nalezeny alternativní kódy

RIV/46747885:24410/19:00005989

Výsledek na webu

https://www.tandfonline.com/doi/full/10.1080/10667857.2018.1540332

DOI - Digital Object Identifier

10.1080/10667857.2018.1540332

Jazyk výsledku

angličtina

Název v původním jazyce

Structure-related properties of bionanocomposites based on poly(lactic acid), cellulose nanocrystals and organic impact modifier

Popis výsledku v původním jazyce

Poly (lactic acid) (PLA) as a leading biobased, biodegradable and biocompatible thermoplastic still faces important industrial problems such as a slow crystallization, low thermal stability, and low impact resistance. This problem is addressed by the addition of nucleation agents based on cellulose nanocrystals (CNCs) and lignin-coated cellulose nanocrystals (L-CNCs) to increase nucleation density, enhance higher crystallization rate and increase the thermal stability. However, the effectiveness of CNCs/L-CNCs incorporation strongly depends on the quality of the dispersion and distribution in non-polar PLA matrix. The two-step pre dispersion processes based on solution ultra-sonication/mechanical stirring and masterbatch preparation by melt mixing using an internal mixer has been used. An organic impact modifier masterbatch has been used to increase the impact toughness that depends on many extrinsic and intrinsic variables. Injection molding technology has been used to prepare final samples and these were characterized by means of structure-morphology investigation, thermal and impact properties evaluation.

Název v anglickém jazyce

Structure-related properties of bionanocomposites based on poly(lactic acid), cellulose nanocrystals and organic impact modifier

Popis výsledku anglicky

Poly (lactic acid) (PLA) as a leading biobased, biodegradable and biocompatible thermoplastic still faces important industrial problems such as a slow crystallization, low thermal stability, and low impact resistance. This problem is addressed by the addition of nucleation agents based on cellulose nanocrystals (CNCs) and lignin-coated cellulose nanocrystals (L-CNCs) to increase nucleation density, enhance higher crystallization rate and increase the thermal stability. However, the effectiveness of CNCs/L-CNCs incorporation strongly depends on the quality of the dispersion and distribution in non-polar PLA matrix. The two-step pre dispersion processes based on solution ultra-sonication/mechanical stirring and masterbatch preparation by melt mixing using an internal mixer has been used. An organic impact modifier masterbatch has been used to increase the impact toughness that depends on many extrinsic and intrinsic variables. Injection molding technology has been used to prepare final samples and these were characterized by means of structure-morphology investigation, thermal and impact properties evaluation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

EF16_019/0000843: Hybridní materiály pro hierarchické struktury

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials Technology

ISSN

1066-7857

e-ISSN

—

Svazek periodika

34

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

143-156

Kód UT WoS článku

000455344500004

EID výsledku v databázi Scopus

2-s2.0-85055697051