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

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Chapter 8 168 Tear srength (N/mm) 35 30 25 20 15 10 5 0 Modified RHsilica Neat RHsilica Vulcanizates Figure 8.11 Tear strength of the NR vulcanizates with RHsilica The abrasion resistance is higher for vulcanizate filled with modified RHsilica compared to vulcanizate with unmodified silica. This is shown in figure 8.12. Abrasion loss (CC/hr) 10 8 6 4 2 0 Modified RHsilica Neat RHsilica Vulcanizates Figure 8.12 Abrasion resistance of NR vulcanizates with RHsilica Hardness of the composites filled with modified RHsilica and with neat RHsilica is shown in Figure 8.13.
. Hardness (Shore A ) 70 60 50 40 30 20 10 0 Modified RHsilica Neat RHsilica Vulcanizates Products from rice husk as filler in natural rubber Figure 8.13 Hardness of NR vulcanizates with RHsilica Figure 8.14 shows the results of the compression set test. It is found that vulcanizate reinforced with modified RHsilica demonstrated better compression set compared to vulcanizate filled with neat RHsilica. Compresion set (%) 70 60 50 40 30 20 10 0 Modified RHsilica Neat RHsilica Vulcanizates Figure 8.14 Compression set test of the NR vulcanizates with RHsilica 169
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Studies on the use
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WxvÄtÜtà|ÉÇ I hereby declare t
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My heartfelt thanks are also due to
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The use of prepared zinc oxides as
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2.2.10 Characterization techniques
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Part@ B 7.3.1 Characterization - su
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Introduction 1.1 Composites 1.1 Com
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Introduction of reinforcement and m
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Nanophase material: They are same a
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Introduction developed at Oxford Un
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Introduction Rubbers are broadly cl
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Introduction The polymers are prepa
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1.4.1 Zinc oxide Introduction Zinc
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Introduction and tinted rubber comp
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Pharmaceutical industry Introductio
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Introduction textiles contain ZnO,
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1.4.2a. Carbon blacks Introduction
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Introduction especially glass and c
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Introduction properties, filler cha
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Introduction coupling agent in sili
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Introduction amphiphilic di and tri
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Introduction It has been reported t
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Introduction The external manifesta
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Introduction concern for a clean en
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12. C.R.Martin, Chem. Mater, 1996,
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41. E.J.Stewart, J.Elastomers plast
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Introduction 69. J.B. Donnet (Ed),
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Introduction 100. C.T.Kresge, M.E.L
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Introduction 129. E.R.Ericsson, R.A
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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)
Page 131 and 132: Chapter 6 6.4 Conclusions 117 1. Gu
Page 133 and 134: Use of antioxidant modified precipi
Page 139 and 140: Mix Use of antioxidant modified pre
Page 143 and 144: Crosslink density Use of antioxidan
Page 151 and 152: Part@ B Use of antioxidant modified
Page 157 and 158: Thermal ageing studies Use of antio
Page 161 and 162: 7.9 References Use of antioxidant m
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Page 167 and 168: Rubber compounding Products from ri
Page 169 and 170: Soxhlet extraction Products from ri
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Page 189 and 190: Summary and Conclusion compounds an
Page 191 and 192: ASTM : American Society for Testing
Page 193 and 194: A. International/National journals
Page 195: P.M.SABURA BEGUM Senior Scale Lectu
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