Intratree Variation in Viscoelastic Properties of Cell Walls of Masson Pine (Pinus Massoniana Lamb)

In this study, Pinus massoniana Lamb at different heights, across the annual rings, and between earlywood latewood was measured by X-ray diffraction chemical composition analyzed treatment. Results indicated that microfibril angle (MFA) decreased changed little with increase in height from 1 m to 9 m. radial direction, MFA an rings. The cellulose content of higher than earlywood. viscoelastic changes wood cell walls rings method quasi-static nanoindentation dynamic modulus mapping techniques. walls’ elastic increased, creep rate compliance height; hardness increased storage loss gradually