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. 2020 Apr 4;12(4):814. doi: 10.3390/polym12040814

Table 1.

Formulation and coding of natural rubber (NR)–cellulose nanofiber (CNF) composites.

Sample Code Solid
NR (phr)
Masterbatch ZnO (phr) Stearic
Acid (phr)
Nonox
SP (phr)
CBS
(phr)
Sulphur
(phr)
NR (phr) CNF (phr)
NR-gum 50 50 - 5 2 1 0.6 2.5
NR–CNF 1 phr 50 50 1 5 2 1 0.6 2.5
NR–CNF 2 phr 50 50 2 5 2 1 0.6 2.5
NR–CNF 3 phr 50 50 3 5 2 1 0.6 2.5
NR–CNF 4 phr 50 50 4 5 2 1 0.6 2.5