A STUDY OF BUBBLE NUCLEATION IN A MIXTURE OF MOLTEN POLYMER AND VOLATILE LIQUID IN A SHEAR-FLOW FIELD

被引：60

作者：

HAN, JH

CHANG, DH

机构：

[1] POLYTECH UNIV,POLYMER RES INST,BROOKLYN,NY 11201

[2] POLYTECH UNIV,POLYMER RES INST,DEPT CHEM ENGN,BROOKLYN,NY 11201

来源：

POLYMER ENGINEERING AND SCIENCE | 1988年 / 28卷 / 24期

关键词：

Mixtures; -; Polymers--Molten; Polystyrenes;

D O I：

10.1002/pen.760282408

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Bubble nucleation in a mixture of volatile liquid and polymer melt under shear flow conditions was investigated, using a light scattering technique. In the study, a mixture of polystyrene and trichlorofluoromethane was extruded through a slit die having glass windows and bubble nucleation in the flow channel was observed optically. The present study indicates that bubble nucleation in a shear flow field can occur at an unsaturated condition. This is in contrast to bubble nucleation under static conditions, where supersaturation is necessary.

引用

收藏

页码：1616 / 1627

页数：12

相关论文

共 11 条

[1] BUBBLE NUCLEATION IN LIQUIDS [J].

BLANDER, M ;

KATZ, JL .

AICHE JOURNAL, 1975, 21 (05) :833-848

[2] A RHEOLOGICAL EQUATION OF STATE WHICH PREDICTS NON-NEWTONIAN VISCOSITY, NORMAL STRESSES, AND DYNAMIC MODULI [J].

DEWITT, TW .

JOURNAL OF APPLIED PHYSICS, 1955, 26 (07) :889-894

[3] RHEOLOGICAL PROPERTIES OF MIXTURES OF MOLTEN POLYMER AND FLUOROCARBON BLOWING AGENT .1. MIXTURES OF LOW-DENSITY POLYETHYLENE AND FLUOROCARBON BLOWING AGENT [J].

HAN, CD ;

MA, CY .

JOURNAL OF APPLIED POLYMER SCIENCE, 1983, 28 (02) :831-850

[4] STUDIES ON STRUCTURAL FOAM PROCESSING .1. RHEOLOGY OF FOAM EXTRUSION [J].

HAN, CD ;

VILLAMIZAR, CA .

POLYMER ENGINEERING AND SCIENCE, 1978, 18 (09) :687-698

[5] STUDIES ON STRUCTURAL FOAM PROCESSING .4. BUBBLE-GROWTH DURING MOLD FILLING [J].

HAN, CD ;

YOO, HJ .

POLYMER ENGINEERING AND SCIENCE, 1981, 21 (09) :518-533

[6]

HAN JH, IN PRESS J POLYM S B

[7] INFLUENCE OF CAVITATION NUCLEUS SPECTRUM ON CAVITATION INCEPTION, INVESTIGATED WITH A SCATTERED LIGHT COUNTING METHOD [J].

KELLER, A .

JOURNAL OF BASIC ENGINEERING, 1972, 94 (04) :917-925

[8]

SPRINGER GS, 1978, ADV HEAT TRANSFER, V14, P281

[9] STUDIES ON STRUCTURAL FOAM PROCESSING .2. BUBBLE DYNAMICS IN FOAM INJECTION-MOLDING [J].

VILLAMIZAR, CA ;

HAN, CD .

POLYMER ENGINEERING AND SCIENCE, 1978, 18 (09) :699-710

[10] STUDIES ON STRUCTURAL FOAM PROCESSING .3. BUBBLE DYNAMICS IN FOAM EXTRUSION THROUGH A CONVERGING DIE [J].

YOO, HJ ;

HAN, CD .

POLYMER ENGINEERING AND SCIENCE, 1981, 21 (02) :69-75