Properties and application effects of guanidine phosphate in packaging paperboard materials

Properties and application effects of guanidine phosphate in packaging paperboard materials

In the development process of modern packaging materials, safety and environmental protection have become important considerations. Guanidine Phosphate (GP), as a highly efficient flame retardant, has shown significant advantages and broad prospects in the application of packaging paperboard materials.

First of all, guanidine phosphate, through its own expansion, can form a carbonized protective layer on the surface of the cardboard, effectively isolate oxygen and heat sources, thus significantly reducing the burning rate of the cardboard. The research shows that when the mass fraction of GP reaches 10%, the average carbonization length of cardboard material is significantly reduced, and the flame retardant effect is significantly improved. This increase in flame retardancy makes guanidine phosphate excellent in demanding packaging applications, especially in the packaging of flammable items.

Secondly, guanidine phosphate is a non-toxic and harmless compound with good biodegradability and environmental friendliness. It does not produce toxic gases and smoke during combustion, reducing the harm to the environment and human body. This feature is in line with the current demand for green environmental protection, making its application in packaging materials more in line with the sustainable development direction of modern industry. Guanidine phosphate also has high thermal stability and can maintain its flame retardant properties at high temperatures. The research shows that when the coating temperature is 60℃, the guanidine phosphate is more evenly distributed in the cardboard, and the flame retardant effect reaches the best state. This shows that guanidine phosphate has good adaptability and stability in practical applications, and is suitable for use under various packaging conditions. Compared with other flame retardants, guanidine phosphate has less effect on the physical properties of cardboard. Its addition will not significantly change the mechanical strength and processing properties of cardboard, and maintain the original excellent characteristics of cardboard. This feature makes the application of guanidine phosphate in packaging materials more flexible, and will not damage the other properties of the material due to flame retardant treatment.

Thirdly, the preparation and application process of guanidine phosphate flame retardant is relatively simple. It is dissolved in water and mixed with magnesium hydroxide and hydroxymethyl cellulose in a certain proportion, and the prepared flame retardant liquid can be uniformly applied to the surface of the cardboard by dipping or coating. The operation is simple, easy to popularize and apply, and the production and use cost is reduced.

Finally, guanidine phosphate, as an efficient, safe and environmentally friendly flame retardant, significantly improves the flame retardant performance of packaging paperboard materials to meet various special packaging needs, especially in the transportation and storage of flammable and explosive products has important application value.