- Hotline:
- +86-15851956577
Category: Chemical industry
Introduction: Introduction to flame retardants:Flame retardant, a functional additive that imparts flame retardancy to flammable polymers, is mainly designed for the flame retardancy of polymer materials; There are various types of flame retardants, which can be di…
Flame retardant, a functional additive that imparts flame retardancy to flammable polymers, is mainly designed for the flame retardancy of polymer materials; There are various types of flame retardants, which can be divided into additive flame retardants and reactive flame retardants according to their usage methods.
Additive flame retardants are added to polymers through mechanical mixing to enhance their flame retardancy. Currently, additive flame retardants mainly include organic and inorganic flame retardants, halogenated flame retardants (organic chlorides and organic bromides), and non halogenated flame retardants. Organic flame retardants are represented by bromine, phosphorus nitrogen, nitrogen, and red phosphorus compounds, while inorganic flame retardants mainly include antimony trioxide, magnesium hydroxide, aluminum hydroxide, silicon based flame retardant systems.
Reactive flame retardants, on the other hand, participate in polymerization reactions as monomers, thus containing flame retardant components in the polymer itself. Their advantage is that they have little impact on the performance of polymer materials and have long-lasting flame retardancy.
Previous: Catalyst vacuum dryer
1. Increase the temperature of hot air entering the towerUnder the condition of constant outlet temperature, the higher the inlet temperature (also known as inlet temperature) of the hot air, the higher the total heat brought in. The more heat per uni…
1. Flash dryer raw material acceleration and drying stageIn the heat transfer medium, particles are at a higher temperature and the air humidity is below 100%. In a short period of time, the surface is heated to the dry material humidity, and the rate…
▲ The flash dryer has multiple feeding devices to choose from, ensuring continuous and stable feeding without any bridging during the process.▲ A dedicated cooling device is installed at the bottom of the flash dryer to prevent material deterioratio…
The internal influencing factors of the efficiency of hollow blade dryers.1. Mixing blade qualityWhen the mixing blades in the hollow blade dryer are damaged, it will seriously affect the working efficiency of the hollow blade dryer. Without the mixin…
A hot air circulation oven is a device that uses circulating hot air to achieve a drying effect. There are generally five models of hot air circulation ovens. They are single door bicycles, two door two cars, two door four cars, three door six cars, a…
The disc dryer is suitable for use in drying projects with high evaporation intensity. On the basis of the basic configuration, a finned heater is added to introduce small flow of hot air into the dryer, absorb the water vapor that escapes from the ma…
