EFFECT OF ACRYLIC POLYMER DISPERSIONS ON WATER VAPOUR PERMEABILITY AND SOME OTHER PHYSICAL PROPERTIES OF FINISHED LEATHERS

•          TABLE OF CONTENTS Cover page-----------------------------------------------------------------------------------i Fly page--------------------------------------------------------------------------------------ii Title Page-----------------------------------------------------------------------------------vii Declaration-----------------------------------------------------------------------------------iv Certification---------------------------------------------------------------------------------v Acknowledgement------------------------------------------------------------------------vi Abstract--------------------------------------------------------------------------------------vi Table of Contents------------------------------------------------------------------------viii List of Figures------------------------------------------------------------------------------ix List of Tables--------------------------------------------------------------------------------x List of Appendices------------------------------------------------------------------------xii List of Abbreviations/Symbols----------------------------------------------------------xi 

Chapter ONE

INTRODUCTION

• ----------------------------------------------------------------------------1 
• 1.0INTRODUCTION---------------------------------------------------------------------1 
• 1.1The Chemistry and Development of Finished Leathers-------------------17 
• 1.2Statement of the Research Problem-------------------------------------------20 
• 1.3Research Aim and Objectives---------------------------------------------------20 1.
• 3.1Objectives--------------------------------------------------------------------------20 
• 1.4Justification---------------------------------------------------------------------------21 

Chapter TWO

LITERATURE REVIEW

• --------------------------------------------------------------------------22 
• 2.0LITERATURE REVIEW------------------------------------------------------------22 

Chapter THREE

RESEARCH METHODOLOGY

• ----------------------------------------------------------------------40 
• 3.0MATERIALS AND METHODS---------------------------------------------------40 
• 3.1Materials------------------------------------------------------------------------------40 3.
• 1.1Experimental equipment-------------------------------------------------------40 3.
• 1.2Finishing consumables---------------------------------------------------------40 
• 3.2Methodology------------------------------------------------------------------------41 3.
• 2.1Viscosity measurement of the resin binder--------------------------------41 3.
• 2.2Melting point determination of the resin binder---------------------------41 3.
• 2.3Preparation of leather substrate---------------------------------------------41 3.
• 2.4Preparation of the finish formulations---------------------------------------42 3.
• 2.5Application of the finish formulations on the prepared leather substrate-----------------------------------------------------------------------------------43 3.
• 2.6Water vapour permeability test------------------------------------------------43 3.
• 2.7Lastometer test--------------------------------------------------------------------43 3.
• 2.8Shore A (o ) hardness test-----------------------------------------------------44 3.
• 2.9Wet rub fastness test-------------------------------------------------------------44 

Chapter FOUR

DATA PRESENTATION AND ANALYSIS

• -----------------------------------------------------------------------45 
• 4.0RESULTS-----------------------------------------------------------------------------45 4.
• 1.Examination of Resin Binder---------------------------------------------------45 4.
• 1.1Viscosity and molecular weight measurement of the resin-----------45 
• 4.2Physical Testing of the Finished Leather------------------------------------48 4.
• 2.1Water vapour permeability of leather-------------------------------------48 4.
• 2.2Distension and bursting strength------------------------------------------50 4.
• 2.3Shore A (o ) hardness of finished leather and melting point of binder ------------------------------------------------------------------------------------------------52 4.
• 2.4Wet rub fastness-----------------------------------------------------------------54 

Chapter FIVE

SUMMARY, CONCLUSION AND RECOMMENDATIONS

• --------------------------------------------------------------------------55 
• 5.0DISCUSSION------------------------------------------------------------------------55 CHAPTER SIX---------------------------------------------------------------------------65 
• 6.0CONCLUSION AND RECOMMENDATIONS--------------------------------65 
• 6.1Conclusion----------------------------------------------------------------------------65 
• 6.2Recommendations-----------------------------------------------------------------66 REFERENCES---------------------------------------------------------------------------67 APPENDICES---------------------------------------------------------------------------75