Relationship between flame retardant dosage and PET oxygen index

We found that there is a critical value in the relationship between the amount of flame retardant and the PET oxygen index. Below this threshold, the oxygen index does not change significantly. Above the critical value, the oxygen index begins to increase significantly with the increase in the amount of flame retardant. When the total amount of bromine and antimony flame retardants was greater than 6 to 7 parts, the oxygen index of the sample began to increase significantly. The use of different types of flame retardants in combination with the synergy between different flame retardants can reduce the amount of flame retardants.

This novel and highly efficient combined ultrafine grinding equipment has advanced design. Its innovative and advanced nature lies in the combination of high-precision turbine grader and high-speed impact micropulverizer organically, successfully solving the problem of temperature rise in the crushing process and achieving The greatest energy-saving effect, and has a very good use of reliability; and equipped with high-pressure suction system, so that the product structure is compact, high efficiency, reliable operation, crushed particle size of 10 microns or less, the finest Chinese herbal medicine up to 35 microns below The particle size is infinitely adjustable and the particle size distribution is narrow.

The product passed the provincial new product appraisal, and has obtained the national utility model patent. Experts believe that the successful trial of the aircraft has filled the gaps in China's ultrafine grinding equipment. The technology is at the leading edge in the country and is a major breakthrough in powder engineering. This machine is not only particularly suitable for ultrafine grinding of fiber materials and heat-sensitive materials such as Chinese herbal medicines; but also due to the use of special wear-resistant materials, it can smash materials with a hardness of Mohs 7 or above, so it can also be widely used in chemical, pesticide, Ultrafine crushing of industries such as plastics, foods, feedstuffs and non-metallic minerals.