Studies on the use of nano zinc oxide and modified silica in NR, CR ...

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Chapter 5 USE OF NANO ZINC OXIDE IN CHLOROPRENE RUBBER…………………………………90-103 5.1 Introduction 90 5.2 Experimental 92 5.3 Results and discussion 94 5.3.1 Cure characteristics 94 5.3.2 Properties of gum composites 96 5.3.3 Properties of filled composites 97 5.3.4 Swelling studies 99 5.3.5 Thermal ageing studies 100 5.4 Conclusions 101 5.5 References 103 Chapter 6 USE OF NANO ZINC OXIDE IN STYRENE BUTADIENE RUBBER……………………104-118 6.1 Introduction 104 6.2 Experimental 106 6.3 Results and discussion 107 6.3.1 Cure characteristics 107 6.3.2 Properties of gum composites 109 6.3.3 Properties of filled composites 111 6.3.4 Swelling studies 113 6.3.5 Thermal ageing studies 114 6.4 Conclusions 117 6.5 References 118 Chapter 7 PART-II USE OF ANTIOXIDANT MODIFIED PRECIPITATED SILICA IN NATURAL RUBBER, CHLOROPRENE RUBBER AND STYRENE BUTADIENE RUBBER……………………..119-148 7.1 Introduction 119 Part@ A Use of antioxidant modified silica in natural rubber………………………121-136 7.2 Experimental 121 7.3 Results and discussion 124
Part@ B 7.3.1 Characterization – surface area studies 124 7.3.2 Cure characteristics 124 7.3.3 Tensile properties 126 7.3.4 Other technological properties 127 7.3.5 Rubber-filler interaction studies 130 7.3.6 Ageing studies 130 a) Thermal ageing studies 130 b) Ozone ageing 132 7.3.7 Incorporation of silica 133 7.3.8 Nature of ash of NR compounds 136 Use of antioxidant modified silica in chloroprene rubber……………..…..137-141 7.4 Experimental 137 7.5 Results and discussion 138 7.5.1 Cure characteristics 138 7.5.2 Tensile properties 139 7.5.3 Other technological properties 139 7.5.4 Thermal ageing studies 140 Part@ C Use of antioxidant modified silica in styrene butadiene rubber…………..141-148 7.6 Experimental 141 7.7 Results and discussion 143 7.7.1 Cure characteristics 143 7.7.2 Tensile properties 143 7.7.3 Other technological properties 144 7.7.4 Thermal ageing studies 145 7.8 Conclusions 146 7.9 References 147 Chapter 8 PRODUCTS FROM RICE HUSK AS FILLER IN NATURAL RUBBER…………………149-172 8.1 Introduction 149 Part@ D Use of antioxidant modified mesoporous silica in natural rubber………151-161 8.2 Experimental 151 8.3 Results and discussion 155
Page 2: Studies on the use
Page 5 and 6: WxvÄtÜtà|ÉÇ I hereby declare t
Page 7 and 8: My heartfelt thanks are also due to
Page 9 and 10: The use of prepared zinc oxides as
Page 11: 2.2.10 Characterization techniques
Page 15 and 16: Introduction 1.1 Composites 1.1 Com
Page 17 and 18: Introduction of reinforcement and m
Page 19 and 20: Nanophase material: They are same a
Page 21 and 22: Introduction developed at Oxford Un
Page 23 and 24: Introduction Rubbers are broadly cl
Page 25 and 26: Introduction The polymers are prepa
Page 27 and 28: 1.4.1 Zinc oxide Introduction Zinc
Page 29 and 30: Introduction and tinted rubber comp
Page 31 and 32: Pharmaceutical industry Introductio
Page 33 and 34: Introduction textiles contain ZnO,
Page 35 and 36: 1.4.2a. Carbon blacks Introduction
Page 37 and 38: Introduction especially glass and c
Page 39 and 40: Introduction properties, filler cha
Page 41 and 42: Introduction coupling agent in sili
Page 43 and 44: Introduction amphiphilic di and tri
Page 45 and 46: Introduction It has been reported t
Page 47 and 48: Introduction The external manifesta
Page 49 and 50: Introduction concern for a clean en
Page 51 and 52: 12. C.R.Martin, Chem. Mater, 1996,
Page 53 and 54: 41. E.J.Stewart, J.Elastomers plast
Page 55 and 56: Introduction 69. J.B. Donnet (Ed),
Page 57 and 58: Introduction 100. C.T.Kresge, M.E.L
Page 59 and 60: Introduction 129. E.R.Ericsson, R.A
Page 61 and 62: Chapter 2 47 In a particular experi
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Chapter 2 Stearic acid (co-activato
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Chapter 2 roll with mill opening at
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Chapter 2 were carried out at a cro
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Chapter 2 2.2.4 Strain-sweep studie
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Chapter 2 2.2.6 Bound rubber conten
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Chapter 2 Surface area 59 Surface a
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Preparation and characterization of
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3.2.2 Method I- Precipitation metho
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Energy dispersive X-ray spectrometr
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3.4.9 Differential scanning calorim
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3.6 References Preparation and char
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Use of nano zinc oxide in natural r
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Tear Strength (N/mm) 120 100 80 60
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4.5 References Use of nano zinc oxi
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Chapter 5 oil resistance to oil swe
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Chapter 5 93 Ingredient phr Table 5
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Chapter 5 95 Torque (dNm) 6.5 6.0 5
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Chapter 5 97 Other technological pr
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Chapter 5 99 Table 5.8 Reinforcing
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Chapter 5 101 Hours Table 5.11 Agei
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Chapter 5 5.5 References 103 1. D.C
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Chapter 6 105 Fatty acids as co-act
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Chapter 6 107 Physical properties s
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Chapter 6 The cure rate index of gu
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Chapter 6 show better mechanical pr
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Chapter 6 113 Table 6.6 Reinforcing
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Chapter 6 115 Tensile modulus (Mpa)
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Chapter 6 6.4 Conclusions 117 1. Gu
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Use of antioxidant modified precipi
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Mix Use of antioxidant modified pre
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Crosslink density Use of antioxidan
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Part@ B Use of antioxidant modified
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Thermal ageing studies Use of antio
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7.9 References Use of antioxidant m
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Products from rice husk as filler i
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Rubber compounding Products from ri
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Soxhlet extraction Products from ri
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8.3.4 Bound rubber content Products
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. Hardness (Shore A ) 70 60 50 40 3
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8.8 References 1. V.M.H. Govindaro
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Summary and Conclusions Polymers ar
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Summary and Conclusion compounds an
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ASTM : American Society for Testing
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A. International/National journals
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P.M.SABURA BEGUM Senior Scale Lectu
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