Zhejiang Botai Plastic Co.,Ltd , was established in 2004, located between Shanghai and Hangzhou. We mainly produce all kinds of PVC material, including PVC Flex Banner for advertising media, tarpaulin material series, tent series, inflatable material series, tensile membrane structure series.


Copyright©2018 All Rights Reserved Zhejiang BoTai Plastic Co., Ltd  浙ICP备09010016号  Powered by



Mainly produce all kinds of PVC Flex Banner, PVC Laminated & Coated Tarpaulin, PVC Textiles, PVC Films, etc.

What is the mechanism of action of pvc tarpaulin flame retardant


What is the mechanism of action of pvc tarpaulin flame retardant

Page view

When making pvc tarpaulin, a large number of additives will be added. One of the more common flame retardants can be used to make polymeric flame retardants. So what is the mechanism of action of this flame retardant?

pvc tarpaulin

1. Inflammable gas suffocation: The flame retardant decomposes incombustible gas when heated, and the concentration of combustible gas decomposed by combustibles is lower than the lower limit of combustion. At the same time, it can dilute the oxygen concentration in the combustion area, prevent combustion, and achieve flame retardant effect.
2. Inhibition of chain reaction: According to the chain reaction theory of combustion, it is the free radical required to maintain combustion. Flame retardants act in the gas phase combustion zone to capture free radicals in the combustion reaction, thereby preventing flame propagation, reducing the flame density in the combustion zone, and reducing the rate of combustion reaction until termination.
For example, the evaporation temperature of halogen-containing flame retardants is the same or similar to the decomposition temperature of polymerization. When the polymerization is thermally decomposed, the flame retardant of pvc tarpaulin also volatilizes at the same time. At this time, the halogen-containing flame retardant and the thermal decomposition product are in the gas phase combustion zone at the same time, and the halogen can capture the free radicals in the combustion reaction and interfere with the combustion chain reaction.
At present, when using pvc tarpaulin, the first consideration for manufacturers is how to understand its physical properties. After all, its physical properties are more important properties, and only a detailed understanding can ensure that workers can use it skillfully. Therefore, when it appears, we should at least know how to calculate its density, calculate it in various ways, find the difference from it, and even analyze the source of the error.