Chemical Property of Wood

Submitted by brightbai on Wed, 05/11/2016 - 08:57

Wood has chemical and physical properties. The principal chemical properties are ability to burn, bad conductant of electricity,  and does not dissolve in water. The principle physical properties of wood are strength, hardness, stiffness and density. Dense types of wood are  usually hard and strong.

Here are some chemical properties of wood below:

1. Flamability of Wood Types

Hardwoods

  • Hardwoods include oak, mahogany, teak, walnut and maple trees.  Hardwoods are so called because their wood is denser than that of other trees, which also makes them less flammable.  When exposed to fire, hardwoods are slow to burn; although they will char and can become extremely hot.  Because they are slow growing and hard to work with, hardwoods are more likely to be used as exterior building materials in home construction.

Softwoods

  • Softwoods such as cedar, Douglas fir and pine trees are more flammable than hardwoods, although this is not always the case. Softwoods are so called because their wood is less dense and is therefore more susceptible to fire. Because softwoods make up the majority of interior home wood, it is possible to treat wood with UL-approved fire-retardant chemicals to reduce flammability.

Bamboo

  • Although it is actually a grass, bamboo is used as a wood in home construction.  As homeowners turn to more environmentally friendly building materials, more bamboo is being used.  Although it is strong, bamboo is also highly flammable. Bamboo can be treated with fire-retardant chemicals, but homeowners and builders in fire-prone areas should check local building codes before using bamboo.

2. bad conductant of electricity

However, wood has plenty of water in in it.  Wood WILL conduct electricity.  I know this from personal experiance, as does anyone who has worked around electricty.  However, it’s full of stuff that aren’t good conductors.  We consider it a ‘bad’ conductor because we look for ways to optimize the delivery of electricity, and wood is not optimal.  However, if you are sitting in a tree when it gets hit by lightning, you won’t be in the least bit safe.

Woodworking Article