scholarly journals Influence of cellulose content on thermal properties of poly(lactic) acid/cellulose and low-density polyethylene/cellulose composites

2012 ◽  
Vol 61 (3) ◽  
pp. 237 ◽  
Author(s):  
D Šumigin ◽  
E Tarasova ◽  
A Krumme ◽  
A Viikna
1970 ◽  
Vol 17 (1) ◽  
pp. 32-37 ◽  
Author(s):  
Dmitri SHUMIGIN ◽  
Elvira TARASOVA ◽  
Andres KRUMME ◽  
Pille MEIER

In our work we studied composites of poly(lactic) acid (PLA) and low density polyethylene filled with cellulose fibres. The studied composite materials were manufactured with a twin-screw extruder. The extruded compound was processed in to samples using compression moulding. The content of cellulose in polymer/cellulose composites was varied. Effect of low amounts of cellulose on the rheological and tensile properties was studied. Tensile tests showed that the incorporation of cellulose into PLA matrix lead to stiffer but slightly more brittle and weaker materials, since Young's modulus increases and tensile strength and elongation at break slightly decrease. Mechanical results are in agreement with rheological behaviour: the composites exhibit the improvement in the storage and loss moduli of composites compared with that of matrix polymers. The composite dynamic viscosity increases with cellulose content in the same manner as loss and storage moduli. The processing and material properties of PLA/cellulose composites were compared to the more commonly used low-density-polyethylene/cellulose composites.http://dx.doi.org/10.5755/j01.ms.17.1.245


2018 ◽  
Author(s):  
Engku Zaharah Engku Zawawi ◽  
Dzaraini Kamarun ◽  
Rozana Mohd Dahan ◽  
Nor Haleeda Mohammad Adzhar

2012 ◽  
Vol 36 (1) ◽  
pp. 127-134 ◽  
Author(s):  
N. Sutivisedsak ◽  
H.N. Cheng ◽  
M.K. Dowd ◽  
G.W. Selling ◽  
A. Biswas

2009 ◽  
Vol 48 (4) ◽  
pp. 823-833 ◽  
Author(s):  
Zhizhong Su ◽  
Qiuying Li ◽  
Yongjun Liu ◽  
Haiyan Xu ◽  
Weihong Guo ◽  
...  

2021 ◽  
Vol 315 ◽  
pp. 128-133
Author(s):  
Sirirat Wacharawichanant ◽  
Patteera Opasakornwong ◽  
Ratchadakorn Poohoi ◽  
Manop Phankokkruad

This work studied the effects of medium-length fibrous cellulose (MFC) on the morphology, mechanical and thermal properties of poly(lactic acid) (PLA)/propylene-ethylene copolymer (PEC) (90/10) blends. The morphological analysis of PLA/MFC composites observed MFC fibers inserted in the PLA matrix and MFC appeared agglomeration when added high MFC loading. The phase morphology showed the two-phase separation of PLA/PEC blends. The presence of PEC reduced the agglomeration of MFC fibers in polymer matrix. The tensile stress and strain curves found that the ultimate stress of PLA was the highest value and the addition of MFC increased Young’s modulus of PLA/MFC and PLA/PEC/MFC composites. The PEC presence improved the strain at breaking point of PLA/PEC blends. The thermal properties found that the incorporation of MFC did not improve the thermal stability of PLA/MFC and PLA/PEC/MFC composites due to the PLA had degradation temperature higher than MFC.


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