Blends containing core-shell impact modifiers - Part 2. Melt rheology of rubber-toughened plastics (IUPAC technical report)

被引：13

作者：

Kozlowski, M

Bucknall, CB

机构：

[1] Wroclaw Tech Univ, PL-50370 Wroclaw, Poland

[2] Cranfield Inst Technol, Adv Mat Dept, Cranfield MK43 0AL, Beds, England

来源：

PURE AND APPLIED CHEMISTRY | 2001年 / 73卷 / 06期

关键词：

D O I：

10.1351/pac200173060913

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The influence of impact modifiers composed of an elastomer-based core and a poly(methyl methacrylate) (PMMA) shell on the melt flow properties of different thermoplastics has been studied, using both steady-state and dynamic viscosity measurements. The melt viscosities of the rubber-toughened blends were similar to those of the matrix polymers, over the range of shear rates commonly applied during melt processing. In the case of the matrix polymers, viscosity curves obtained under dynamic conditions coincided with those obtained under steady-state conditions. However, for blends the two curves show a slight divergence at low strain rates, where yielding is observed.

引用

页码：913 / 926

页数：14

共 15 条

[1]

[Anonymous], 1989, POLYM ALLOYS BLENDS

[2]

BRENNER H, 1970, J FLUID MECH, V4, P641

[3]

Bucknall CB., 1977, TOUGHNED PLASTICS, DOI [DOI 10.1002/POL.1978.130160714, 10.1007/978-94-017-5349-4, DOI 10.1007/978-94-017-5349-4]

[4]

BUCKNALL CB, 1993, 421 IUPAC WP