Problems such as precipitation and pores that may occur during the use of
halogen-free flame retardants are mainly due to multiple factors such as the compatibility of the flame retardant with the plastic substrate, processing technology, and environmental conditions.
Strategies to solve the precipitation problem:
Optimize processing technology: By adjusting parameters such as processing temperature, pressure and processing time, the dispersion and compatibility of flame retardants in plastics can be improved and the precipitation of flame retardants can be reduced. Appropriate processing temperatures allow the flame retardant to be better integrated into the plastic substrate, while appropriate pressure helps distribute the flame retardant evenly in the plastic.
Select the appropriate flame retardant: According to the properties of the plastic substrate and processing technology requirements, select a flame retardant that has good compatibility with the plastic and excellent processing performance. The better the compatibility of the flame retardant with the plastic substrate, the less likely it is to leach out.
Control the amount of flame retardant added: According to the flame retardant requirements and processing conditions of plastic products, reasonably control the amount of flame retardant added. Adding too much or too little may lead to precipitation problems.
Control ambient temperature and humidity: During processing and storage, control changes in ambient temperature and humidity to avoid precipitation of flame retardants caused by changes in temperature and humidity. Stable environmental conditions help maintain the stability of flame retardants in plastics.
Use surface treatment technology: Treat the plastic surface, such as coating, coating, etc., to improve the heat resistance and weather resistance of the plastic surface and reduce the precipitation of flame retardants.
Strategies for solving stomatal problems:
Air hole problems are most often caused by poor vacuum. In the application of halogen-free flame retardants, since the flame retardant powder is easy to raise dust, if the vacuum degree is not enough, moisture may form pores in the plastic substrate. Therefore, it is very important to ensure that the vacuum system of the processing equipment is in good condition. In addition, controlling the moisture content of raw materials to avoid introducing too much moisture during processing is also an effective way to reduce porosity problems.