Bioactivity of viscoelastic Ormosil-type organic-inorganic hybrids containing colloidal silica particles

被引：1

作者：

Aburatani, Y ^{[1
]}

Tsuru, K ^{[1
]}

Hayakawa, S ^{[1
]}

Osaka, A ^{[1
]}

机构：

[1] Okayama Univ, Fac Engn, Biomat Lab, Okayama 7008530, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2003年 / 111卷 / 05期

关键词：

compressive strength; viscoelasticity; bioactivity; apatite; organic-inorganic hybrid; sol-gel;

D O I：

10.2109/jcersj.111.318

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Synthesized were organically modified silicate (ORMOSILs) hybrids containing colloidal silica as an ingredient, starting from poly (dimethylsiloxane) (PDMS), tetraethoxysilane (TEOS) and calcium nitrate through sol-gel processing. The effects of pre-hydrolysis of TEOS on mechanical strength and viscoelasticity were examined. A sample of composition PDMS/TEOS = 0.60 (molar ratio) with pre-hydrolysis of TEOS showed about 65% maximum failure strain. Thus obtained hybrid exhibited a peak at around -75degreesC in the storage modulus-temperature curve of the hybrid, due to transverse movements of the PDMS chains. This hybrid, heated at 200degreesC deposited apatite within 1 d in the simulated body fluid of the Kokubo recipe.

引用

页码：318 / 322

页数：5

共 14 条

[1] Mechanical properties and microstructure of bioactive ORMOSILs containing silica particles [J].

Aburatani, Y ;

Tsuru, K ;

Hayakawa, S ;

Osaka, A .

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2002, 20 (1-2) :195-198

[2]

ABURATANI Y, 1999, BIOCERAMICS, V12, P457

[3] HYBRID SILOXANE-OXIDE MATERIALS VIA SOL-GEL PROCESSING - STRUCTURAL CHARACTERIZATION [J].

BABONNEAU, F .

POLYHEDRON, 1994, 13 (08) :1123-1130

[4] NMR characterization of the chemical homogeneity in sol-gel derived siloxane-silica materials [J].

Babonneau, F ;

Gualandris, V ;

Pauthe, M .

BETTER CERAMICS THROUGH CHEMISTRY VII: ORGANIC/INORGANIC HYBRID MATERIALS, 1996, 435 :119-130

[5] DEPENDENCE OF APATITE FORMATION ON SILICA-GEL ON ITS STRUCTURE - EFFECT OF HEAT-TREATMENT [J].

CHO, SB ;

NAKANISHI, K ;

KOKUBO, T ;

SOGA, N ;

OHTSUKI, C ;

NAKAMURA, T ;

KITSUGI, T ;

YAMAMURO, T .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1995, 78 (07) :1769-1774

[6] RUBBER-LIKE ELASTICITY OF ORGANICALLY MODIFIED SILICATES [J].

HU, Y ;

MACKENZIE, JD .

JOURNAL OF MATERIALS SCIENCE, 1992, 27 (16) :4415-4420

[7] LIQUID-STATE SI-29 NMR-STUDY ON THE SOL-GEL REACTION-MECHANISMS OF ORMOSILS [J].

IWAMOTO, T ;

MORITA, K ;

MACKENZIE, JD .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1993, 159 (1-2) :65-72

[8] MECHANISM OF APATITE FORMATION ON CAO-SIO2-P2O5 GLASSES IN A SIMULATED BODY-FLUID [J].

OHTSUKI, C ;

KOKUBO, T ;

YAMAMURO, T .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1992, 143 (01) :84-92

[9]

Ohtsuki C., 1991, J CERAM SOC JPN, V99, P1

[10] Sol-gel preparation and in vitro deposition of apatite on porous gelatin-siloxane hybrids [J].

Ren, L ;

Tsuru, K ;

Hayakawa, S ;

Osaka, A .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2001, 285 (1-3) :116-122

← 1 2 →