The commonly used materials glass is silica sand (keisha),soda ash,and
About silica sand
Minerals made from silicon dioxide as crystals have quartz minerals. Many are shaped like hexagonal prisms. It is quartz sand that the mineral became sandy. When looking at sand in a sandbox,you can see it is transparent and glowing,that is because silica sand is like a piece of glass.
About soda ash
It is sodium carbonate anhydrate made from salt. It is used for making
sweetsIt is also the main ingredient of baking powder. Soda ash is also
contained in detergents and bathing agents.
Limestone is also called calcium carbonate. It enhances the durability of the glass.
Limestone is contained in various things such as chalk powder and baby powder.
It is the main ingredient of shells and corals.
In this way, the glass material is familiar
I was so surprised that glass was made from such things!
How to make glass
Glass fiber is one made by melting and pulling glass to make it fibrous.
When used in fibrous form, with common alkali glasses
As the strength is remarkably lowered due to deterioration of the surface,
glass for use as a raw material has a structure such as
Alkali glass such as quartz glass is used.
However, general glass can also be used for glass wool applications.
Main applications are printed circuit board and fiber reinforced plastic (FRP).
By mixing glass fiber with plastic and solidifying it
Lightweight materials with high strength and high toughness that can not
be obtained with plastic alone can be obtained.
However, with respect to strength, aged deterioration occurs and it may
be damaged even after 3 to 5 years from the start of use, so
Attention is required when using it for tools such as sports gear and helmet
which are related to human life.
In addition, when writing "glass fiber", it sometimes implies glass fiber reinforced plastic.