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Material Properties and Statistical Analysis of Natural Rubber-Based Adhesives

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Abstract

Material properties of epoxidized natural rubber (ENR 50)-based adhesive were determined using DSC, TGA and FTIR analysis which was prepared using gum rosin and toluene as tackifier and solvent respectively. Quadratic regression was fitted to model the effect of peel strength and shear strength of the adhesives. Result shows that peel and shear strength increases up to an optimum molecular weight of 4.2 × 104 g/mol of ENR 50. Peel strength and shear strength also increases with increase in rate of testing, an observation which is associated to the viscoelastic response of the adhesive. Statistical analysis was carried out to further investigate the effect of molecular weight and testing rate on peel and shear strength.

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Abbreviations

ASTM:

American Society for Testing and Materials

ENR:

Epoxidized natural rubber

NR:

Natural rubber

PET:

Polyethylene terephthalate

PVP:

Poly (vinylpyrrolidone)

PSA:

Pressure-sensitive adhesive

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Acknowledgments

The authors acknowledge the research grant (FRGS) provided by Universiti Sains Malaysia that has resulted in this article.

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Authors and Affiliations

  1. Division of Bio-Resource, Paper and Coatings Technology, School of Industrial Technology, Universiti Sains Malaysia, 11800, Penang, Malaysia

    Imran Khan & B. T. Poh

  2. Division of Environmental Technology, School of Industrial Technology, Universiti Sains Malaysia, 11800, Penang, Malaysia

    Khai Ern Lee

Authors
  1. Imran Khan
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  2. B. T. Poh
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Corresponding author

Correspondence to Imran Khan.

Appendix

Appendix

See Tables 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.

Table 4 ANOVA table for peel strength (90° Test) with molecular weight for various testing rate for 10, 30 and 50 phr of gum rosin at the coating thickness of 120 μm
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Table 5 ANOVA table for peel strength (T Test) with molecular weight for various testing rate for 10, 30 and 50 phr of gum rosin at the coating thickness of 120 μm
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Table 6 ANOVA table for shear strength with molecular weight for various testing rate for 10, 30 and 50 phr of gum rosin at the coating thickness of 120 μm
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Table 7 Tukey multiple comparisons of peel strength (90° Test) with molecular weight for various testing rate for 10 phr of gum rosin at the coating thickness of 120 μm
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Table 8 Tukey multiple comparisons of peel strength (90° Test) with molecular weight for various testing rate for 30 phr of gum rosin at the coating thickness of 120 μm
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Table 9 Tukey test (20 and 40 cm/min) and Tamhane’s T2 (10, 30 and 50 cm/min) multiple comparisons of peel strength (90° Test) with molecular weight for various testing rate for 30 phr of gum rosin at the coating thickness of 120 μm
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Table 10 Tukey multiple comparison of peel strength (T Test) with molecular weight for various testing rate for 10 phr of gum rosin at the coating thickness of 120 μm
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Table 11 Tukey (10, 20, 30 and 50) and Tamhane’s T2 (40) multiple comparisons of peel strength (T Test) with molecular weight for various testing rate for 30 phr of gum rosin at the coating thickness of 120 μm
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Table 12 Tukey multiple comparisons of peel strength (T Test) with molecular weight for various testing rate for 50 phr of gum rosin at the coating thickness of 120 μm
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Table 13 Tukey multiple comparisons of shear strength with molecular weight for various testing rate for 10 phr of gum rosin at the coating thickness of 120 μm
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Table 14 Tukey multiple comparisons of shear strength with molecular weight for various testing rate for 30 phr of gum rosin at the coating thickness of 120 μm
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Table 15 Tukey (10, 30, 40 and 50 cm/min) and Tamhane’s T2 (20 cm/min) multiple comparisons of shear strength with molecular weight for various testing rate for 30 phr of gum rosin at the coating thickness of 120 μm
Full size table

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Khan, I., Poh, B.T. & Lee, K.E. Material Properties and Statistical Analysis of Natural Rubber-Based Adhesives. J Polym Environ 21, 833–849 (2013). https://doi.org/10.1007/s10924-012-0559-6

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