DEVELOPMENT OF POLYURETHANE ENGINEERING THERMOPLASTICS .2. STRUCTURE AND PROPERTIES

被引：23

作者：

FRONTINI, PM ^{[1
]}

RINK, M ^{[1
]}

PAVAN, A ^{[1
]}

机构：

[1] POLITECN MILAN,DIPARTIMENTO CHIM IND & INGN CHIM,I-20133 MILAN,ITALY

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1993年 / 48卷 / 11期

关键词：

D O I：

10.1002/app.1993.070481115

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Rigid, tough thermoplastic polyurethanes were synthesized by a two-step technique. These materials presented a complex structure consisting of a continuous, rigid, amorphous, or semicrystalline matrix with a dispersed soft phase. The influence of soft-segment content upon rigidity modulus, heat-distortion temperature, and fracture behavior has been determined on model amorphous polyurethanes. The influence of crystallinity upon final properties has been studied on two materials: a preparation of ours and a commercial product. Various degrees of crystallinity have been induced in the samples by annealing. Phase structure was characterized by differential scanning calorimetry and wide-angle X-ray scattering. Some of the polyurethane samples assayed in this paper exhibited similar properties to those reported in respect of more conventional engineering thermoplastics, such as ABS or nylon.

引用

页码：2023 / 2032

页数：10

共 31 条

[1] STRUCTURE PROPERTY BEHAVIOR OF SEGMENTED POLYETHER MDI BUTANEDIOL BASED URETHANES - EFFECT OF COMPOSITION RATIO [J].

ABOUZAHR, S ;

WILKES, GL ;

OPHIR, Z .

POLYMER, 1982, 23 (07) :1077-1086

[2]

ABOUZAHR S, 1982, POLYMER, V23, P1977

[3] THERMAL AND MECHANICAL-PROPERTIES OF SOLUTION POLYMERIZED SEGMENTED POLYURETHANES WITH BUTADIENE SOFT SEGMENTS [J].

BENGTSON, B ;

FEGER, C ;

MACKNIGHT, WJ ;

SCHNEIDER, NS .

POLYMER, 1985, 26 (06) :895-900

[4] THERMAL AND MECHANICAL-PROPERTIES OF LINEAR SEGMENTED POLYURETHANES WITH BUTADIENE SOFT SEGMENTS [J].

BRUNETTE, CM ;

HSU, SL ;

ROSSMAN, M ;

MACKNIGHT, WJ ;

SCHNEIDER, NS .

POLYMER ENGINEERING AND SCIENCE, 1981, 21 (11) :668-674

[5] PHASE-SEPARATION STUDIES IN RIM POLYURETHANES CATALYST AND HARD SEGMENT CRYSTALLINITY EFFECTS [J].

CAMARGO, RE ;

MACOSKO, CW ;

TIRRELL, M ;

WELLINGHOFF, ST .

POLYMER, 1985, 26 (08) :1145-1154

[6] MORPHOLOGICAL-STUDY OF THE STRUCTURE DEVELOPED DURING THE POLYMERIZATION OF A SERIES OF SEGMENTED POLYURETHANES [J].

CHANG, AL ;

BRIBER, RM ;

THOMAS, EL ;

ZDRAHALA, RJ ;

CRITCHFIELD, FE .

POLYMER, 1982, 23 (07) :1060-1068

[7] PROPERTIES OF LINEAR ELASTOMERIC POLYURETHANES [J].

COOPER, SL ;

TOBOLSKY, AV .

JOURNAL OF APPLIED POLYMER SCIENCE, 1966, 10 (12) :1837-&

[8]

CURVE L, 1991, POLYMER, V32, P343

[9]

ESTES GM, 1970, J MACROMOL SCI-REV M, VC 4, P313

[10]

FRONTINI PM, 1986, INT S NEW POLYM MATE

← 1 2 3 4 →