Structures and properties of the compression-molded istactic-polypropylene/talc composites: Effect of cooling and rolling

被引：18

作者：

Gafur, Md Abdul ^{[2
]}

Nasrin, Rahima ^{[1
]}

Mina, Md Forhad ^{[1
]}

Bhuiyan, Md Abu Hashan ^{[1
]}

Tamba, Yukihiro ^{[3
]}

Asano, Tsutomu ^{[4
]}

机构：

[1] Bangladesh Univ Engn & Technol, Dept Phys, Dhaka 1000, Bangladesh

[2] Bangladesh Council Sci & Ind Res, PP & PDC, Dhaka 1205, Bangladesh

[3] Suzuka Natl Coll Technol, Shiroko, Suzuka 5100294, Japan

[4] Shizuoka Univ, Ctr Instrumental Anal, Shizuoka 4228529, Japan

来源：

POLYMER DEGRADATION AND STABILITY | 2010年 / 95卷 / 09期

关键词：

Composites; X-ray diffraction; Lamellar structure; Mechanical properties; Thermal properties; MECHANICAL-BEHAVIOR; TALC; ORIENTATION; CRYSTALLIZATION; MORPHOLOGY;

D O I：

10.1016/j.polymdegradstab.2010.05.001

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Talc-loaded isotactic polypropylene (iPP) composites with various contents of talc were fabricated by compression molding, following slow- and fast-cooling processes, to obtain slow-cooled samples (SCS) and fast-cooled samples (FCS), respectively. Lamellar thickness of the a-crystal of iPP in the SCS is observed to be larger than that in the FCS by X-ray diffraction study. Rolled fast-cooled samples (RFCS) were also prepared at 25 degrees C in order to examine the crystal growth of iPP. An epitaxial growth mechanism of the a-crystal of iPP from the talc crystal is proposed. Surface of talc-loaded FCS appears with a smaller particle size than that of talc-loaded SCS and RFCS as observed by a scanning electron microscope. Young's modulus and tangent modulus of FCS are found lower than those of SCS with the addition of talc up to 20 wt% and higher above this concentration, except microhardness which is higher in SCS at all contents of talc. From thermal studies, talc-loaded SCS and FCS are found to show higher melting temperature than the neat samples. Effect of cooling and rolling on the structures and properties of the fabricated composites are elaborately discussed. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1818 / 1825

页数：8

共 34 条

[1]

ALONSO M, 1995, PLAST RUB COMPOS PRO, V24, P131

[2] PLASTIC-DEFORMATION OF ORIENTED LAMELLAE .1. COLD ROLLING OF BETA-PHASE ISOTACTIC POLYPROPYLENE [J].

ASANO, T ;

FUJIWARA, Y .

POLYMER, 1978, 19 (01) :99-108

[3]

Asano T, 2006, SURVEY POLYM CRYSTAL, P48

[4]

Calleja F.J. B., 2000, MICROHARDNESS POLYM

[5] Talc as nucleating agent of polypropylene: morphology induced by lamellar particles addition and interface mineral-matrix modelization [J].

Ferrage, E ;

Martin, F ;

Boudet, A ;

Petit, S ;

Fourty, G ;

Jouffret, F ;

Micoud, P ;

De Parseval, P ;

Salvi, S ;

Bourgerette, C ;

Ferret, J ;

Saint-Gerard, Y ;

Buratto, S ;

Fortune, JP .

JOURNAL OF MATERIALS SCIENCE, 2002, 37 (08) :1561-1573

[6]

FORKES MJ, 1987, J MATER SCI LETT, V6, P656

[7] STRUCTURES AND PROPERTIES OF INJECTION MOLDINGS OF CRYSTALLIZATION NUCLEATOR-ADDED POLYPROPYLENES .1. STRUCTURE PROPERTY RELATIONSHIPS [J].

FUJIYAMA, M ;

WAKINO, T .

JOURNAL OF APPLIED POLYMER SCIENCE, 1991, 42 (10) :2739-2747

[8] CRYSTAL ORIENTATION IN INJECTION-MOLDING OF TALC-FILLED POLYPROPYLENE [J].

FUJIYAMA, M ;

WAKINO, T .

JOURNAL OF APPLIED POLYMER SCIENCE, 1991, 42 (01) :9-20

[9] Preparation and characterization of nickel-polystyrene nanocomposite by ultrasound irradiation [J].

Kumar, RV ;

Koltypin, Y ;

Palchik, O ;

Gedanken, A .

JOURNAL OF APPLIED POLYMER SCIENCE, 2002, 86 (01) :160-165

[10] Preparation of amorphous magnetite nanoparticles embedded in polyvinyl alcohol using ultrasound radiation [J].

Kumar, RV ;

Koltypin, Y ;

Cohen, YS ;

Cohen, Y ;

Aurbach, D ;

Palchik, O ;

Felner, I ;

Gedanken, A .

JOURNAL OF MATERIALS CHEMISTRY, 2000, 10 (05) :1125-1129

← 1 2 3 4 →