Inorganic flame retardants and flame retardant mechanism of surface treatment technology Introduction

Introduction With the continuous development of polymer materials science, a variety of polymer products, not only by industry, agriculture and defense sectors are widely used, but has penetrated into every aspect of people's lives. As most of the polymer material can be burned, emit a lot of heat when burned, while producing hydrogen chloride, hydrogen cyanide, styrene and other corrosive gases and toxic gases. Therefore, the flame retardant polymer articles of research has become increasingly important. Retardant polymer materials are generally divided into two types reactive and additive. PVC processing aid
Reactive flame retardant mainly in the polymerization and condensation process in the polymer main chain or a side chain into a group of flame retardant to achieve the purpose of fire. It has good stability, easy to disappear, toxicity, little effect on the polymer properties, etc., but the synthesis and processing complex. Flame retardant into inorganic and organic categories. High security inorganic flame retardants and flame retardants can be done both to make Tim materials, but also has low smoke, non-toxic, good thermal stability, non-corrosive gases, low price, etc.. The main varieties are: aluminum hydroxide, magnesium hydroxide, red phosphorus, antimony oxide, molybdenum oxide, zirconium oxide, ammonium molybdate, zinc borate, in which aluminum hydroxide, magnesium hydroxide, red phosphorus, antimony oxide, more extensive use of . Organic phosphorus-based flame retardant and halogen is divided into two series. Phosphorus flame retardant mainly acid esters, which are liquid at room temperature and more, heavy smoke, toxic. PVC heat stabilizer
Halogenated flame retardants include chlorine and bromine are two brominated flame retardants toxic and corrosive thermal decomposition is relatively small, the use of more common. In the field of fire, the development of efficient, low smoke, non-toxic, pollution-free flame retardants is that people long-term goal. Inorganic flame retardants such as some of the features it has to apply more widely. This paper describes the mechanism of inorganic flame retardant and surface treatment method.