What is Nano Flame Retardant?

What is Nano Flame Retardant?

Nano-flame retardant flame retardant mechanism Nano-flame retardant can reduce the flammability of the coated material, prevent the rapid spread of fire, used to increase the limit of the fire-resistant ability of the coated material of a special class of coatings. According to its fire-resistant nature and structural composition, the Jian is a non-expandable fire-resistant coating and a bentonite fire-resistant coating. Non-expansive fire-resistant coatings include two kinds, i.e. explosive fire-resistant coatings and incombustible fire-resistant coatings.

In response to the problems exposed by the above traditional IFR applied to PP system, Silver Plastics Company, based on the renewable bio-based material phytic acid (PA) and the traditional IFR gas source melamine (MA), used a simple and environmentally friendly hydrothermal synthesis method to obtain melamine phytate (PAMA) supramolecular nano-sheets, and combined with transition metal ions that have a strong catalytic carbonation ability (Mnt, Zn2+, Nf2n), Nf2n). A class of transition metal-doped bio-based flame retardants (PAMA-Mn, PAMA-Zn, PAMA-Ni) with high flame retardant efficiency was produced. Then they were used to replace APP in PPIFR system in large quantities by melt blending method to obtain better flame retardant effect.

After a comparative analysis of the flame retardant effective performance of PP composites before and after the replacement of PAMA-M on the replacement rate of APp in the PPL system for thirty-three wt%, when the total addition of flame retardant for eighteen wt%, the maximum limiting oxygen index (Lo0 maximum value and vertical ignition UL minus ninety-four grade are more than a great value, which is the best performance to the flame retardant effect of the PPMn thirty-three LoL Maximum value of thirty-one point nine percent, and passed the UL-94v-0 rating.

However, the replacement efficiency of APP by PAMA-M E-sheets or PAMA-Ni Nano-sheets can achieve 67 w% or more, provided that the basic flame retardant performance usage conditions (UL94 V-0 rating) are met. In addition, PAMA-M nanosheets not only have excellent dispersibility in PP matrix by themselves, but also both can change the diffusion of APp in PP matrix.

Using the above characterization methods, the study of the flame retardant principles of pPMn33, PPZn33 and PPNi can be obtained as follows: under the joint influence of the transition metal molecular in-situ catalysts and crosslinking carbonization, although the PP material can obtain a high quality carbon layer, due to the gas-phase pyrolysis process there are still part of the soot produced by bicyclic aromatics and polycyclic aromatic hydrocarbons, and so it is not able to be The complete ignition of PPMn33, PPZn33 and PPNi XXXIII has a high LO1 value and can reach UL-94v-0 level.

However, since the catalysts among Zn+ and Ni di+ have a weaker carbon forming effect than Mn di+, the relatively small residual carbon yield of the pP composite prevents it from functioning as a physical barrier for a long period of time in the high continuous heat flow tested by CONE, and the carbon layer may fracture, leading to a large difference in heat release between PPZn33 and PPNi xxxiii."

In conclusion, the application of some of the nanomaterials has the effect of inhibiting combustion, and if they are added as inorganic flame retardants to combustible substances, they can improve the spontaneous combustion characteristics of such combustible substances and turn them into refractory substances. Inorganic flame retardant in the polymer material processing of the main additives a, because as long as the use of nanomaterials to medicinal polymer materials to be flame retardant processing, can be easily explosive high self-interest can be realized.