According to the alkali content in the glass composition, the continuous fiber can be divided into the following kinds:
Alkali-free fiber (commonly known as E glass) : R2O less than 0.8%, is a composition of aluminum borosilicate. Its chemical stability, electrical insulation, strength are very good. Mainly used for electrical insulation materials, reinforced plastics and tire cord. Alkali fiber: R2O content is 11.9%-16.4%, is a sodium calcium silicate composition, because of its high alkali content, can not be used as electrical insulation materials, but its chemical stability and strength is good. Generally used for latex cloth, gingham cloth substrate, acid filter cloth, window screening substrate, etc., can also be used for FRP reinforced materials with less stringent requirements for electrical properties and strength. This kind of fiber costs less and has a widely uses.
According to the alkali content in the glass composition, the continuous fiber can be divided into the following kinds:
Alkali-free fiber (commonly known as E glass) : R2O less than 0.8%, is a composition of aluminum borosilicate. Its chemical stability, electrical insulation, strength are very good. Mainly used for electrical insulation materials, reinforced plastics and tire cord. Alkali fiber: R2O content is 11.9%-16.4%, is a sodium calcium silicate composition, because of its high alkali content, can not be used as electrical insulation materials, but its chemical stability and strength is good. Generally used for latex cloth, gingham cloth substrate, acid filter cloth, window screening substrate, etc., can also be used for FRP reinforced materials with less stringent requirements for electrical properties and strength. This kind of fiber costs less and has a widely uses.