The Study of Bound Water Status and Pore Size Distribution of Chinese Fir and Poplar Cell Wall by Low-Field NMR

Table 2

The relationship between the temperature drops of the freezing point and pore diameter.

(°C)	(nm)
-30°C	1.92
-25°C	2.18
-20°C	2.58
-15°C	3.24
-10°C	4.56
-5°C	8.52
-4°C	10.5
-3°C	13.8
-2°C	20.4
-1°C	40.2