Thermal properties of isotactic polypropylene degraded with gamma irradiation

被引：51
|
作者：
Krupa, I
Luyt, AS
机构：
[1] Univ North Qwa Qwa, Sch Chem Sci, ZA-9866 Phuthadithaba, South Africa
[2] Slovak Acad Sci, Inst Polymer, Bratislava, Slovakia
来源：
POLYMER DEGRADATION AND STABILITY | 2001年 / 72卷 / 03期
关键词：
polypropylene; gamma irradiation; degradation; DSC; TGA;
D O I：
10.1016/S0141-3910(01)00052-0
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We discuss some thermal properties, as well as the thermal stability, of irradiated isotactic polypropylene. Sol-gel analysis showed that, despite the fact that irradiation doses were relatively high, no gel was formed. Values for DSC melting temperature, specific enthalpy of melting, crystallization temperature and crystallization enthalpy are different for the first and second scan, but the trend was similar. The melting temperature and specific melting enthalpy decreased with an increase in irradiation dose. TGA results showed that irradiation lowered the thermal stability of PP. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：505 / 508
页数：4
相关论文
共 50 条
  • [31] Structural, elastic and thermal properties of titanium dioxide filled isotactic polypropylene
    Bhuiyan, A. H.
    Mina, M. F.
    Seema, S.
    Khan, M. M.
    Rahman, Mohammad Jellur
    Gafur, M. A.
    JOURNAL OF POLYMER RESEARCH, 2011, 18 (05) : 1073 - 1079
  • [32] Thermal properties of quenched isotactic polypropylene doped with multilwalled carbon nanotubes
    Cabrera, Yaniel
    Georgiev, Georgi Y.
    Wielgus, Lauren
    Judith, Robert
    Cebe, Peggy
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2009, 238
  • [33] Gamma polymorph and branching formation as inductors of resistance to electron beam irradiation in metallocene isotactic polypropylene
    Cerrada, Maria L.
    Perez, Ernesto
    Benavente, Rosario
    Ressia, Jorge
    Sarmoria, Claudia
    Valles, Enrique M.
    POLYMER DEGRADATION AND STABILITY, 2010, 95 (04) : 462 - 469
  • [34] A MODIFICATION OF THE PROPERTIES OF ISOTACTIC POLYPROPYLENE FILM BY GAMMA-RADIATION IN THE PRESENCE OF BUTADIENE
    BUSFIELD, WK
    EUROPEAN POLYMER JOURNAL, 1981, 17 (04) : 333 - 340
  • [35] Oxidative degradation and morphological properties of gamma-irradiated isotactic polypropylene films
    Mouaci, Sarah
    Saidi, Mohamed
    Saidi-Amroun, Nadia
    MICRO & NANO LETTERS, 2017, 12 (07) : 478 - 481
  • [36] Study of the morphology, thermal and mechanical properties of irradiated isotactic polypropylene films
    Oliani, W. L.
    Lima, L. F. C. P.
    Parra, D. F.
    Dias, D. B.
    Lugao, A. B.
    RADIATION PHYSICS AND CHEMISTRY, 2010, 79 (03) : 325 - 328
  • [37] Influence of the surface nature and caolin content on thermal properties of isotactic polypropylene
    Baranovskij, V.M.
    Bondarenko, S.I.
    Kachanovskaya, L.D.
    Zelenev, Yu.V.
    Makarov, V.G.
    Ovcharenko, F.D.
    Plasticheskie Massy: Sintez Svojstva Pererabotka Primenenie, 1993, (05): : 17 - 18
  • [38] Influence of the irradiation parameters on the molecular modifications of an isotactic polypropylene gamma-irradiated under vacuum
    Spadaro, G
    Valenza, A
    POLYMER DEGRADATION AND STABILITY, 2000, 67 (03) : 449 - 454
  • [39] Influence of β nucleation on the mechanical properties of isotactic polypropylene and rubber modified isotactic polypropylene
    Grein, C
    Plummer, CJG
    Kausch, HH
    Germain, Y
    Béguelin, P
    POLYMER, 2002, 43 (11) : 3279 - 3293
  • [40] Influence of nucleating agent on the mechanical and thermal properties of neat isotactic polypropylene/reprocessed polypropylene blends
    Berktas, Mete Evren
    Ekinci, Aysun
    Oksuz, Mustafa
    Ates, Murat
    Aydin, Ismail
    IRANIAN POLYMER JOURNAL, 2025, 34 (03) : 299 - 310
12345