000099293 001__ 99293
000099293 005__ 20230921135439.0
000099293 0247_ $$2doi$$a10.31025/2611-4135/2019.13857
000099293 0248_ $$2sideral$$a122907
000099293 037__ $$aART-2019-122907
000099293 041__ $$aeng
000099293 100__ $$aBogataj, V.Z.
000099293 245__ $$aUtilization of recycled polypropylene, cellulose and newsprint fibres for production of green composites
000099293 260__ $$c2019
000099293 5060_ $$aAccess copy available to the general public$$fUnrestricted
000099293 5203_ $$aThis work investigates the feasibility of using the recycled polypropylene (rPP), cellulose (CF) and newsprint (NP) fibres in polyolefin reinforced composites. Recycled PP filled with 40 wt.% of cellulose (rPP/CF) or newsprint (rPP/NP), with the addition of impact modifier (IM) and compatibilizing agent (CA), have been prepared with ex-trusion melting and injection moulding. Melting and crystallization behaviour of plain matrix and composites were measured by differential scanning calorimetry (DSC). Morphological and mechanical properties were also studied using scanning electron microscope (SEM) and tensile testing, respectively. Thermal stability of composites was similar to neat rPP for both types of the filler used. Though, the crystallinity was progressively decreased with the addition of CF or NP. The DSC further revealed an occurrence of the two distinct melting transitions, meaning that the examined materials were not based on pure polypropylene (PP), but are rather blends of high-density polyethylene (HDPE) and PP, what has been confirmed also by the Fourier transform infrared spectroscopy (FTIR). The largest single source of contaminations in recycled PP comes from HDPE since both polymers are identified by a similar density and can be accidentally mixed during the conventional physical separation process. Composites reinforced with CF have shown better mechanical performances than those based on reclaimed NP fibres, what can be attributed to the initial fibre quality. Tensile strength of the composites filled with CF and NP fibres was 36 MPa and 29 MPa, respectively, in disparity to 23 MPa measured for neat rPP. The fibre addition further resulted in substantial increase in Young modulus of the composites. The addition of CF and NP fibres lead to an improved modulus of elasticity by 16 and 47%, respectively. Waste paper in the form of recovered cellulose or reclaimed newsprint fibre can thus meet all the technical requirements to become an alternative to inor-ganic fillers in thermoplastic composites.
000099293 536__ $$9info:eu-repo/grantAgreement/EUR/LIFE17/ENV-SI-000119
000099293 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000099293 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000099293 700__ $$aFajs, P.
000099293 700__ $$0(orcid)0000-0003-4685-6202$$aPeñalva, C.
000099293 700__ $$aOmahen, M.
000099293 700__ $$aCop, M.
000099293 700__ $$aHenttonen, A.
000099293 773__ $$g7, 9 (2019), 36-43$$pDetritus$$tDetritus$$x2611-4127
000099293 8564_ $$s545527$$uhttps://zaguan.unizar.es/record/99293/files/texto_completo.pdf$$yVersión publicada
000099293 8564_ $$s2575785$$uhttps://zaguan.unizar.es/record/99293/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000099293 909CO $$ooai:zaguan.unizar.es:99293$$particulos$$pdriver
000099293 951__ $$a2023-09-21-13:31:10
000099293 980__ $$aARTICLE