Thermotropic Liquid Crystal Polymer Blends: 1st Edition (Hardback) book cover

Thermotropic Liquid Crystal Polymer Blends

1st Edition

By Francesco Paolo La Mantia

CRC Press

192 pages

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Hardback: 9780877629603
pub: 1993-12-04
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Description

In recent years, studies by both industry and academic researchers have opened the door to improving performance and reducing costs of these new materials. The particular structure and morphology of LCPs, as well as their peculiar rheological behavior, have stimulated researchers to develop new theoretical models and new characterization and processing techniques to more fully understand and utilize LCPs.

Although the scientific literature is very rich in data on the synthetic techniques and on the relations between structure and phase behavior of these new polymers, the understanding of the rheological and processing aspects is still far from satisfactory-particularly in the case of LCP blends. In fact, although an appreciable number of patents and scientific papers have appeared describing the phase behavior, the rheology, and the mechanical properties of many of these polyblends, several aspects of the relations between processing and morphology, and between morphology and properties of these materials are still obscure or even controversial.

Now, this new book, written by leading researchers, provides an up-to-date guide and reference to the processing, rheology and applications of pure LCPs and LCP blends. The book concisely reviews the synthetic procedures for the production of LCPs and discusses the rheological behavior and processing methods. Plus, the book examines present and future applications areas of LCPs and LCP blends.

Table of Contents

MOLECULAR DESIGN OF THERMOTROPIC, MAIN-CHAIN LIQUID CRYSTALLINE POLYMERS

Introduction

Liquid Crystalline Order in Polymers

The Development of Thermotropic, Main-Chain LCPs

The Chemical Structure of Thermotropic, Main-Chain LCPs

Synthetic Procedures

Characterization Techniques, Structure, and Phase Behavior

Conclusions

RHEOLOGY OF THERMOTROPIC LIQUID CRYSTALLINE POLYMERS

Introduction

The Low Viscosity Effect

Viscosity Sensitivity to Shear Rate

Normal Stresses, Die Swell, and Entrance Pressure Drop

Orientational Effects and Structure Development

Other Rheological Results-Concluding Remarks

PROCESSING AND PROPERTIES OF THERMOTROPIC LIQUID CRYSTALLINE POLYMERS

Introduction

Crystallization and Its Role in Processing

Extrusion of TLCP

Spinning of TLCP

Injection Molding

Other Processing Operations

RHEOLOGY OF THERMOTROPIC LIQUID CRYSTAL POLYMER BLENDS

Introduction

Liquid Crystal Polymers

PROCESSING AND PROPERTIES OF THERMOTROPIC LIQUID CRYSTAL POLYMER BLENDS

Introduction

Liquid Crystal Polymers

Extrusion

Spinning

Injection Molding

Phase Interactions in Liquid Crystal Polymer Blends

APPLICATIONS OF THERMOTROPIC LIQUID CRYSTAL POLYMERS AND THERMOTROPIC LIQUID CRYSTAL POLYMER BLENDS

Introduction

Liquid Crystal Polymers' Properties

Liquid Crystal Polymers' Application

LCPs' Costs and Strategies

LCP-Thermoplastic Matrix Blends

Technical Issues

Potential Applications of TP/LCP Blends

Cost and Market Considerations for LCP Blends

100 Tables and Figures, 401 References

Subject Categories

BISAC Subject Codes/Headings:
TEC021000
TECHNOLOGY & ENGINEERING / Material Science
TEC055000
TECHNOLOGY & ENGINEERING / Textiles & Polymers