Normally, a single halogenated FR is enough to achieve UL94 V0 due to its high FR efficiency. But by contrast, for formulation of a halogen-free flame retardant PC, a combination of different types of halogen-free flame retardants is mostly entailed to achieve UL94 V0, especially for a thickness of 1.6 mm or below. This is… Continue reading Formulation of Halogen-Free Flame Retardant PC
Medical plastic consumables and devices commonly need to be sterilized before use. Thus the medical grade plastics which is used to produce these consumables and devices must be capable of sustaining the potential damage posed by the popular sterilization methods such as Gamma radiation, electron beam, autoclave steam and dry heat. Anti-oxidants, either phenolics or… Continue reading Why and How to Make Sterilizable Medical Plastics?
Normally, phosphate ester FRs such as BDP, RDP and so on are used at a relatively large dosage for formulation of halogen-free flame retardant PC/ABS to meet UL94 V0. The large amount of phosphate ester FR that is used leads to two issues. Firstly, the overall cost is relatively high. Secondly, the heat deflection temperature… Continue reading How to Formulate Cheaper and High-HDT Halogen-Free Flame Retardant PC/ABS?
For flexible medical PVC, anti-oxidants can serve to boost Gamma resistance. However, in some cases they might not create sufficient Gamma resistance and a specialized Gamma stabilizer like RS-06 shall be used. However, Gamma sterilization could pose much more severe damage for rigid medical PVC than for flexible one. Anti-oxidants are totally inefficient for rigid… Continue reading Advice on How to Boost Gamma Resistance for Flexible and Rigid Medical Grade PVC
Potassium perfluorobutane sulfonate (KPFBS), such as FR-2025 from 3M or RM65 from Miteni, is a standard flame retardant for transparent polycarbonate. Even though used at a small dosage, it is very expensive per se. For a thickness of 1.6 mm or below, KPFBS alone is not sufficient in FR efficiency and needs to be combined with… Continue reading How to Formulate Cost-Efficient Flame Retardant Transparent PC?