Simultaneously enhanced fracture toughness and flame‐retardant property of poly( l ‐lactic acid) via reactive blending with ammonium polyphosphate and in situ formed polyurethane

2020 ◽  
Vol 69 (10) ◽  
pp. 985-994
Author(s):  
Meng Ma ◽  
Xinpeng Wang ◽  
Kai Liu ◽  
Si Chen ◽  
Yanqin Shi ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Lactic Acid ◽  
Flame Retardant ◽  
Ammonium Polyphosphate ◽  
Reactive Blending ◽  
Flame Retardant Property

scholarly journals Ammonium Polyphosphate Intercalated Layered Double Hydroxide and Zinc Borate as Highly Efficient Flame Retardant Nanofillers for Polypropylene

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1114 ◽  
Author(s):  
Yanshan Gao ◽  
Qiang Wang ◽  
Weiran Lin
Keyword(s):  
Flame Retardant ◽  
Ammonium Polyphosphate ◽  
Zinc Borate ◽  
Polypropylene Composites ◽  
Flame Retardant Property ◽  
Thermogravimetric Analyzer ◽  
Mixing Method ◽  
And Performance ◽  
Double Hydroxide ◽  
Double Hydroxides

We found in our previous study that layered double hydroxides (LDHs) which undergo aqueous miscible organic solvent treatment (AMOST) can tune the hydrophobicity surface of LDHs to be hydrophobic, and then the solvent mixing method can be used to prepare polymer/LDH nanocomposites. However, flame retardant property is not very high if LDHs are only used. In this present work, ammonium polyphosphate (APP) intercalated LDHs and zinc borate (ZB) was incorporated into a polypropylene (PP) matrix using the solvent mixing method. The structures, morphologies, and performance of the composites were characterized carefully. The peak heat release rate (PHRR) reduction of PP containing 10 and 20 wt % APP-LDH reached 27% and 55%, respectively, which increased up to 63% compared with PP/CO3-LDH. After incorporating 2 wt % ZB in the PP/APP-LDH system, the flame retardant property was further improved. Polypropylene composites with 20 wt % APP-LDH and 2 wt % ZB showed a 58% PHRR reduction. In addition, thermogravimetric analyzer (TGA) results indicated that the addition of APP-LDH and ZB improved the temperature at 50% weight loss (T50%) and the char formation of the materials significantly.

Plasticization of poly(lactic acid) (PLA) through chemical grafting of poly(ethylene glycol) (PEG) via in situ reactive blending

2013 ◽  
Vol 49 (8) ◽  
pp. 2356-2364 ◽  
Author(s):  
Kyung-man Choi ◽  
Myeon-Cheon Choi ◽  
Dong-Hun Han ◽  
Tae-Sung Park ◽  
Chang-Sik Ha
Keyword(s):  
Lactic Acid ◽  
Ethylene Glycol ◽  
Poly Lactic Acid ◽  
Poly Ethylene Glycol ◽  
Reactive Blending ◽  
Chemical Grafting ◽  
Poly Ethylene

scholarly journals Mechanically Robust, Flame-Retardant Poly(lactic acid) Biocomposites via Combining Cellulose Nanofibers and Ammonium Polyphosphate

ACS Omega ◽  
2018 ◽  
Vol 3 (5) ◽  
pp. 5615-5626 ◽  
Author(s):  
Weida Yin ◽  
Lei Chen ◽  
Fengzhu Lu ◽  
Pingan Song ◽  
Jinfeng Dai ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Flame Retardant ◽  
Cellulose Nanofibers ◽  
Ammonium Polyphosphate ◽  
Poly Lactic Acid
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