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09-02

Nitrogen introduction

The chemical formula is N2, which is usually a colorless and odorless gas, and nitrogen is generally less dense than air. Nitrogen accounts for 78.08% (volume fraction) of the total atmosphere and is the main component of air. Under standard atmospheric pressure, when cooled to -195.8°C, it becomes a colorless liquid, and when cooled to -209.8°C, liquid nitrogen becomes a snow-like solid. Nitrogen is chemically inactive and difficult to react with other substances at room temperature, so it is often used to make preservatives. However, it can undergo chemical changes with certain substances under high temperature and high energy conditions to produce new substances useful to humans.
09-02

PTFE Introduction

Tetrafluoro is a polymer of tetrafluoroethylene. The English abbreviation is PTFE. The basic structure of polytetrafluoroethylene is.-CF2-CF2-CF2-CF2-CF2-CF2-CF2-CF2-CF2-CF2 -. Polytetrafluoroethylene is widely used in various applications that require resistance to acids, alkalis and organic solvents. It is not toxic to humans, but perfluorooctanoate (PFOA), one of the raw materials used in the production process, is considered to have carcinogenic effects.
09-02

The gauge line distance and connection size of section steel

The gauge line distance and connection size of section steel
09-02

Technical Information

The glass cloth produced in my country is divided into two types: alkali-free and medium-alkali. Most of foreign countries are E-GLASS alkali-free glass cloth. Glass cloth is mainly used to produce various electrical insulating laminates, printed circuit boards, various vehicle bodies, storage tanks, boats, molds, etc. Medium-alkali glass cloth is mainly used for the production of plastic-coated packaging cloth and for corrosion-resistant occasions.
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