Improving the flame retardancy and thermal stability of polypropylene composites via introducing glycine intercalated kaolinite compounds

2022 ◽  
Vol 217 ◽  
pp. 106411
Author(s):  
Wufei Tang ◽  
Lixiang Song ◽  
Fang Liu ◽  
Wubliker Dessie ◽  
Zuodong Qin ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Flame Retardancy ◽  
Polypropylene Composites ◽  
Thermal Stability Of

scholarly journals Thermal Stability and Flame Retardancy of Polypropylene Composites Containing Siloxane-Silsesquioxane Resins

Polymers ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1019 ◽  
Author(s):  
Arkadiusz Niemczyk ◽  
Katarzyna Dziubek ◽  
Beata Sacher-Majewska ◽  
Krystyna Czaja ◽  
Justyna Czech-Polak ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Flame Retardancy ◽  
Cone Calorimeter ◽  
Flame Retardants ◽  
Infrared Spectrometry ◽  
Material Surface ◽  
Polypropylene Composites ◽  
Air Atmosphere ◽  
First Time ◽  
Thermal Stability Of

A novel group of silsesquioxane derivatives, which are siloxane-silsesquioxane resins (S4SQ), was for the first time examined as possible flame retardants in polypropylene (PP) materials. Thermal stability of the PP/S4SQ composites compared to the S4SQ resins and neat PP was estimated using thermogravimetric (TG) analysis under nitrogen and in air atmosphere. The effects of the non-functionalized and n-alkyl-functionalized siloxane-silsesquioxane resins on thermostability and flame retardancy of PP materials were also evaluated by thermogravimetry-Fourier transform infrared spectrometry (TG-FTIR) and by cone calorimeter tests. The results revealed that the functionalized S4SQ resins may form a continuous ceramic layer on the material surface during its combustion, which improves both thermal stability and flame retardancy of the PP materials. This beneficial effect was observed especially when small amounts of the S4SQ fillers were applied. The performed analyses allowed us to propose a possible mechanism for the degradation of the siloxane-silsesquioxane resins, as well as to explain their possible role during the combustion of the PP/S4SQ composites.

Flame Retardancy, Thermal Stability, and Mechanical Properties of Sisal Fiber/Organoclay/Polypropylene Composites

2011 ◽  
Vol 410 ◽  
pp. 47-50 ◽  
Author(s):  
Wichuda Chanprapanon ◽  
Nitinat Suppakarn ◽  
Kasama Jarukumjorn
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Maleic Anhydride ◽  
Flame Retardancy ◽  
Interfacial Adhesion ◽  
Sisal Fiber ◽  
Melt Blending ◽  
Polypropylene Composites ◽  
Pp Composites ◽  
Thermal Stability Of

Composites based on polypropylene (PP) and sisal fiber (SF) were prepared by melt blending. Sisal fiber content was 30 phr. Organoclay (OMMT; Cloisite®30B) (1-7 phr) was incorporated into the composites. In addition, maleic anhydride grafted polypropylene (MAPP) was used as a compatibilizer to enhance the interfacial adhesion between PP matrix and sisal fiber and also to improve the dispersion of the organoclay in PP matrix. The addition of OMMT had insignificantly affected mechanical properties of SF/PP composites. However, flame retardancy and thermal stability of SF/PP composites were improved dramatically with the presence of OMMT.

Mechanical properties, flame retardancy, and thermal stability of basalt fiber reinforced polypropylene composites

2020 ◽  
Vol 41 (10) ◽  
pp. 4181-4191
Author(s):  
Shaoluo Wang ◽  
Jiabao Zhong ◽  
Yongqiang Gu ◽  
Guangyao Li ◽  
Junjia Cui
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Flame Retardancy ◽  
Basalt Fiber ◽  
Fiber Reinforced ◽  
Polypropylene Composites ◽  
Thermal Stability Of

Comparative study of thermal degradation and flame retardancy between straw flour and wood flour on wood–polypropylene composites

2019 ◽  
pp. 089270571986940
Author(s):  
Chuigen Guo ◽  
Ran Chen ◽  
Liping Li
Keyword(s):  
Thermal Stability ◽  
Thermal Degradation ◽  
Heat Release ◽  
Flame Retardancy ◽  
Wood Flour ◽  
Mass Loss Rate ◽  
Synergetic Effect ◽  
Polypropylene Composites ◽  
Physical Integrity ◽  
Pp Composites

The main aim of this study was to evaluate the thermal degradation and flame retardancy of straw flour (SF)-polypropylene (PP) composites and wood flour (WF)-PP composites. Biomass silica exists in SF, despite only 18 wt% loading of ammonium polyphosphate (APP); the APP in combination with biomass silica can effectively improve the flame retardancy on total heat release, heat release rate (HRR), mass loss rate, time to ignition (TTI), and limited oxygen index; it can obtain UL-94 V-0 rating, reduce the average and peak HRR by 44% and 41%, respectively, and increase the TTI by 8%. It attributes to the interaction effect between biomass silica in SF and APP, which more effectively enhances the thermal stability of the SF/PP/APP composites at high temperature and increases the char residue. The silica could form an intercalated network in char structure and then boost the physical integrity. The enhanced physical integrity and thermal stability lead to an effectively synergetic effect on flame retardancy of SF/PP/APP composites.

Synthetic novel, convenient and eco-friendly Si/P/N synergistic treatment agent to improve the flame retardancy and thermal stability of cotton fabrics

Cellulose ◽  
2020 ◽  
Vol 27 (17) ◽  
pp. 10473-10487
Author(s):  
Zheng Zhang ◽  
Dezheng Kong ◽  
Heng Sun ◽  
Ling Sun ◽  
Chaohong Dong ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Flame Retardancy ◽  
Cotton Fabrics ◽  
Treatment Agent ◽  
Thermal Stability Of
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