High-density polyethylene reinforced with submicron titania particles

被引：39

作者：

Bondioli, Federica ^{[1
]}

Dorigato, Andrea ^{[2
,3
]}

Fabbri, Paola ^{[1
,3
]}

Messori, Massimo ^{[1
,3
]}

Pegoretti, Alessandro ^{[2
,3
]}

机构：

[1] Univ Modena, Dipartimento Ingn Mat Ambiente, I-41100 Modena, Italy

[2] Univ Trent, Dipartimento Ingn Mat & Tecnol Ind, I-38050 Trento, Italy

[3] Italian Interuniv Consortium Mat Sci & Technol, NIPLAB Reference Ctr, Florence, Italy

来源：

POLYMER ENGINEERING AND SCIENCE | 2008年 / 48卷 / 03期

关键词：

D O I：

10.1002/pen.20973

中图分类号：

TQ [化学工业];

学科分类号：

0817 [化学工程与技术];

摘要：

Submicron titania particles were prepared by means of two different synthetic procedures in order to obtain different particle size (diameter ranging from 20 to 350 nm), shapes, and morphologies (amorphous or crystalline). Titania particles were surface modified with octadecylsilane in order to improve their compatibility with respect to polymeric matrices. High-density polyethylene (HDPE)-titania composites were prepared by melt blending by using an internal mixer. T. he obtained composites were mechanically characterized in quasi static and creep tensile conditions. The presence of submicron titania particles (1 %vol) led to a significant increase of elastic modulus (20-25%) with respect to the unreinforced HDPE together with a slight increase of yield stress and a decrease of ultimate elongation. An interesting reduction for both elastic and viscoelastic creep compliance components was also evidenced.

引用

页码：448 / 457

页数：10

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