Center for Degradable and Flame Retardant Polymeric Materials

Chengdu, China

Center for Degradable and Flame Retardant Polymeric Materials

Chengdu, China
SEARCH FILTERS
Time filter
Source Type

Li Q.-L.,Center for Degradable and Flame Retardant Polymeric Materials | Li Q.-L.,Chengdu Textile College | Wang X.-L.,Center for Degradable and Flame Retardant Polymeric Materials | Wang D.-Y.,Center for Degradable and Flame Retardant Polymeric Materials | And 3 more authors.
Journal of Applied Polymer Science | Year: 2010

A novel, hydroxy-functional, organophosphorus flame retardant (FR), 2,2-dihydroxymethylpropane-1,3-diolylbis(hydrogen phenylphosphonate) (DHDBP), was synthesized and characterized by Fourier transform infrared (FTIR) spectroscopy,1H-NMR,13C-NMR,31P-NMR, and elemental analysis. Subsequently, poly(ethylene terephthalate) (PET)/cotton (T/C; 70/30) blends were treated via pad-dry-thermosol finishing with DHDBP, citric acid, and a catalyst. Its flame retardancy, durability effect, and thermal decomposition behaviors were investigated by limited oxygen index, vertical burning test, thermogravimetric analysis, FTIR spectroscopy, and scanning electron microscopy. The results show that DHDBP was not only a reactive FR with a high efficiency but also a good charforming agent for the T/C blends. © 2010 Wiley Periodicals, Inc.


Zeng J.-B.,Center for Degradable and Flame Retardant Polymeric Materials | Huang C.-L.,Center for Degradable and Flame Retardant Polymeric Materials | Jiao L.,Center for Degradable and Flame Retardant Polymeric Materials | Lu X.,Center for Degradable and Flame Retardant Polymeric Materials | And 2 more authors.
Industrial and Engineering Chemistry Research | Year: 2012

Diethylene glycol was incorporated into poly(butylene succinate) (PBS) to form biodegradable poly(butylene succinate-co-diethylene glycol succinate) (P(BS-co-DEGS)) copolymer through a two-step procedure of esterification and polycondensation from succinic acid with 1,4-butanediol and diethylene glycol. The chemical structure of P(BS-co-DEGS) was confirmed by proton nuclear magnetic resonance spectroscopy (1H NMR). The effect of incorporated DEGS content on the molecular weight, thermal properties, crystallization behaviors, and hydrophilicity of the copolymers was investigated by gel permeation chromatography (GPC), differential scanning calorimetry (DSC), wide-angle X-ray diffraction (WAXD), thermogravimetry analysis (TGA), and water contact angle. The mechanical properties and hydrolytic degradation behaviors of P(BS-co-DEGS) were also studied. The results suggest that with an increase of DEGS content, the crystallizability and degree of crystallinity of the copolymers decreased, while the crystal structure kept unchanged; the thermal stability of the copolymers hardly changed, while the hydrophilicity and hydrolytic degradation rate increased. The tensile modulus decreased, but the elongation at break increased and the tensile strength increased first and then decreased with an increase of DEGS. © 2012 American Chemical Society.

Loading Center for Degradable and Flame Retardant Polymeric Materials collaborators
Loading Center for Degradable and Flame Retardant Polymeric Materials collaborators