Development of neutral glass bottle production become the industry consensus

In Frankfurt, Germany fu mainz at the 10th annual meeting, experts put forward three medicinal glass bottle. 3 - Main chemical compositions of the borosilicate glass and neutral glass, chemical stability and physical properties of technical indicators. Among them, 3. 3 - Borosilicate glass and hard material of our country, GG17 material chemical composition and physical and chemical properties, thermal expansion coefficient of the main difference is that the line control range is different, the two glass of our country has not strict rules line thermal expansion coefficient control.

and the neutral pharmaceutical glass and China's 'neutral' glass performance difference is obvious, to actively develop international neutral glass production in the future, step by step with our limited the original concept of 'neutral' glass is becoming the consensus of the industry.

in our country, low borosilicate glass is to use the so-called 'neutral' glass for many years, and the neutral glass, both on the chemical composition of the difference is very big. China's 'neutral' glass boron content is low, so the line thermal expansion coefficient is larger, granular water resistant level can't keep HGB1.

this is because the 'neutral' glass materials of our country is, so is poorly reflect the resistance to water, surface - — International neutral glass surface water resistant can ensure ISO4802 - HC1 requirements, while China 'neutral' glass is difficult to achieve. In the international standard ISO12775 - 1997 'the normal mass production of glass according to the component classification and its testing method, has been clear glass packaging can be divided into three types: international neutral glass, calcium sodium borosilicate glass and glass.

in this international standard, soda lime glass was not indicate the medicinal, international neutral glass is recognized in the world of choice for medicinal glass bottle glass, in the domestic pharmaceutical industry also is the class a bottle of glass bottles, 5. 5 0 glass or first class material, here. 0 means that the expansion coefficient is not more than 5. 0×10- 6. Because of this glass of water resistance, acid resistance, alkali resistance are level, can say has excellent chemical stability and thermal stability, as a medicinal glass bottle, to ensure drug quality, has the incomparable superiority.