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Journal of Wood Science

Official Journal of the Japan Wood Research Society

Fig. 5 | Journal of Wood Science

Fig. 5

From: Prediction of cellulose nanofibril (CNF) amount of CNF/polypropylene composite using near infrared spectroscopy

Fig. 5

The 2D images of the regression coefficient (R) between CNF addition ratio and the raw absorbance quotients of all wavelengths combination (\({t}_{ij}\)): a all, b injection shape, and c film shape samples. The details of sample conditions and \({t}_{ij}\) are shown in Table 1 and Eq. (1), respectively. The y and x axis show the wavelengths i and j in Eq. (1)

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