Guanidine Phosphate: Injecting New Momentum into the Performance Improvement of Polyurethane

In the polyurethane industry, guanidine phosphate is playing a crucial role, mainly reflected in the following aspects:

I. Significant Improvement in Flame Retardant Performance

Polyurethane materials themselves have problems such as low oxygen index, flammability and high smoke density. As an environmentally friendly phosphorus-based flame retardant that is halogen-free and non-toxic, guanidine phosphate has a quite unique working principle. When heated and decomposed, guanidine phosphate will generate phosphorus and nitrogen-containing compounds, which can quickly form a dense char layer on the surface of polyurethane. This char layer is like a protective shield, which can not only effectively isolate oxygen and heat but also capture the free radicals generated during combustion, thus interrupting the chain reaction of combustion and greatly improving the flame retardant performance of polyurethane.

In terms of practical effects, guanidine phosphate can significantly increase the oxygen index of polyurethane, enabling it to easily reach a higher flame retardant rating. This means that in the event of a fire, polyurethane materials can effectively slow down the burning speed and prevent the fire from spreading rapidly, thus greatly reducing the hazards caused by the fire.

 

II. Comprehensive Enhancement of Mechanical Properties

Guanidine phosphate can increase the char formation rate of polyurethane materials. When polyurethane burns, the formed char layer has the effect of strengthening the structural strength of the material. By adding guanidine phosphate to polyurethane, the mechanical property indicators such as tensile strength and impact strength of the material have been significantly improved.

This makes polyurethane more durable and able to withstand greater external forces and stresses. This characteristic broadens the application range of polyurethane in fields with higher requirements for mechanical properties, making it possible for its use in more critical areas.

III. Optimization and Upgrade of Processing Properties

During the processing of polyurethane, guanidine phosphate can reduce the viscosity of the material and improve its fluidity. This characteristic makes the operation of polyurethane in processing techniques such as mixing, casting and extrusion smoother and effectively reduces the energy consumption and equipment wear during the processing.

In terms of practical effects, guanidine phosphate helps to improve processing efficiency, ensure the stability of product quality and reduce the defective rate. Meanwhile, it can also make the surface of polyurethane products smoother and the dimensions more precise, comprehensively improving the overall quality of the products.

In practical applications, guanidine phosphate is usually mixed with the raw materials of polyurethane in a certain proportion during the synthesis process of polyurethane. Through processes such as stirring and reaction, it is ensured that guanidine phosphate can be evenly dispersed in the polyurethane system. In addition, guanidine phosphate can also be compounded with other flame retardants, additives, etc., and by playing a synergistic role, better flame retardant, reinforcement and other effects can be achieved.