Yang, Rong; Gu, Guozhang; Tang, Chen; Miao, Zhicheng; Cao, Hongwei; Zou, Guoxiang; Li, Jinchun published the artcile< Super-tough and flame-retardant poly(lactic acid) materials using a phosphorus-containing malic acid-based copolyester by reactive blending>, Recommanded Product: (S)-Dimethyl 2-hydroxysuccinate, the main research area is fireproofing polylactic phosphorus malic polyester reactive blending.
It is a great challenge to simultaneously prepare flame-retardant and super-tough poly(lactic acid) (PLA) materials. Herein, we reported a facile approach that PLA reactively blends with phosphorus-containing copolyester. In this paper, a quinary aliphatic copolyester (PPE) containing phosphorus and pendent hydroxyl group was synthesized with sebacic acid, di-Me malate, di-Et phosphite, 1,6-hexanediol, and 1,3-propanediol by polycondensation. Then, flame-retardant and super-tough PLA materials (PLA/PPEU) can be achieved by reactively blending with PPE and hexamethylene diisocyanate. The results showed that the toughness of PLA was significantly enhanced. The maximum notched impact strength is 75.3 kJ/m2 indicated a super toughness performance. Meanwhile, the flame retardance of the PLA was improved obviously. The limited oxygen index (LOI) of PLA increased from 20 to 26%. Moreover, the PLA blends can pass the UL-94 V-0 rating. In addition, both the total heat release and total smoke production of PLA were decreased. The resultant super-tough and flame-retardant PLA materials could be widely applied in elec. and electronic equipment.
Polymer Degradation and Stability published new progress about Chars. 617-55-0 belongs to class esters-buliding-blocks, and the molecular formula is C6H10O5, Recommanded Product: (S)-Dimethyl 2-hydroxysuccinate.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics