TABLE 1.

BBTW prepared by different methods.

Raw material	Delignin method	The transparency method	References
Balsa wood	NaClO2	PMMA	Chen et al. (2019)
Basswood	NaClO2	Epoxy resin	Mi et al. (2020b)
Basswood	Alkaline H2O2	Epoxy resin	Li et al. (2016)
Basswood	NaClO2	Mechanical thermal pressure	Zhu et al. (2018)
Balsa wood	Sodium subchlorite + alkaline H2O2	Sulcanol − Alene	Hoglund et al. (2020)
Balsa wood	NaClO2	PVA	Mi et al. (2020a)
Balsa wood	DES/Alkaline H2O2	PAA	Bi et al. (2018)
Balsa wood	PAA	Limonene acrylate	Montanari et al. (2021)