Synthesis of 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide derivative grafted polyethylene films for improving the flame retardant and anti‐dripping properties

2020 ◽  
Vol 60 (11) ◽  
pp. 2804-2813
Author(s):  
Cong Xie ◽  
Fan Leng ◽  
Zhen Dong ◽  
Weilin Xu ◽  
Mengjiao Zhu ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Polyethylene Films ◽  
Oxide Derivative

scholarly journals Synthesis of Diphenylphosphine Oxide Derivative and Its Flame Retardant Application in Epoxy Resin

2020 ◽  
Vol 32 (6) ◽  
pp. 769-778
Author(s):  
Xiujuan Tian ◽  
Qingqing Yin ◽  
Zhongwei Wang
Keyword(s):  
Flame Retardant ◽  
Epoxy Resin ◽  
Diphenylphosphine Oxide ◽  
Oxide Derivative

Novel flame retardancy effect of phenethyl-bridged DOPO derivative on epoxy resin

2017 ◽  
Vol 30 (6) ◽  
pp. 667-676 ◽  
Author(s):  
Wei Yan ◽  
Jie Yu ◽  
Mingqiu Zhang ◽  
Lijuan Long ◽  
Tao Wang ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Visual Observation ◽  
Gas Chromatography Mass Spectrometry ◽  
Infrared Spectrometry ◽  
Pyrolysis Gas ◽  
Limiting Oxygen Index ◽  
Cone Calorimeter Test ◽  
Potential Applications ◽  
Flame Retardant Properties ◽  
Oxide Derivative

A series of flame-retardant epoxy resins (EPs) containing either phenethyl-bridged 9 or 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide derivative (bisDOPO) were prepared. The flame-retardant properties of bisDOPO on EP composites were characterized by the limiting oxygen index (LOI), the UL-94 vertical burning, and the cone calorimeter test (CCT).The LOI of the EP/bisDOPO composites increased from 21.8% to 38.0%, and the hybrids with the 10 wt% bisDOPO obtained a V-0 rating in the UL94 vertical burning test. The char residue following the CCT showed intumescent structures with continuous and compact surfaces that can effectively suppress the spread of the flame and extinguish the fire. This was confirmed through both visual observation and scanning electron microscopy (SEM) measurements. The flame-retardant mechanism was studied by Fourier transform infrared spectroscope (FTIR), thermogravimetric analysis/infrared spectrometry, SEM/energy-dispersive X-ray, and pyrolysis-gas chromatography/mass spectrometry. Overall, bisDOPO was an effective flame retardant with potential applications within EP.

Synthesis and characterization of inherently flame retardant polyamide 6 based on a phosphine oxide derivative

2019 ◽  
Vol 163 ◽  
pp. 151-160 ◽  
Author(s):  
Ke Liu ◽  
Yuanyuan Li ◽  
Lei Tao ◽  
Chang Liu ◽  
Ru Xiao
Keyword(s):  
Flame Retardant ◽  
Phosphine Oxide ◽  
Polyamide 6 ◽  
Synthesis And Characterization ◽  
Oxide Derivative

The analysis of “Gels” in polymer films

1989 ◽  
Vol 47 ◽  
pp. 362-363
Author(s):  
G. M. Brown ◽  
D. F. Brown ◽  
J. H. Butler
Keyword(s):  
Molecular Weight ◽  
Film Industry ◽  
Local Stress ◽  
Melt Index ◽  
Polyethylene Films ◽  
Crosslinked Polymer ◽  
Polymeric Gels ◽  
Mineral Particles ◽  
Polymeric Species ◽  
Special Concern

The term “gel”, in the jargon of the plastics film industry, may refer to any inclusion that produces a visible artifact in a polymeric film. Although they can occur in any plastic product, gels are a principle concern in films where they detract from the cosmetic appearance of the product and may compromise its mechanical strength by acting as local stress concentrators. Many film gels are small spheres or ellipsoids less than one millimeter in diameter whereas other gels are fusiform-shaped and may reach several centimeters in length. The actual composition of gel inclusions may vary from miscellaneous inorganics (i.e. glass and mineral particles) and processing additives to heavily oxidized, charred or crosslinked polymer. The most commonly observed gels contain polymer differing from the bulk of the sample in its melt viscosity, density or molecular weight.Polymeric gels are a special concern in polyethylene films. Over the years and with the examination of a variety of these samples three predominant polymeric species have been observed: density gels which have different crystallinity than the film; melt-index gels in which the molecular weight is different than the film and crosslinked gels which are comprised of crosslinked polyethylene.

Effects of Aspergillus niger on some Physical Properties of Composites Produced from Transparent Low Density Polyethylene Films/Iroko Wood Dust Particles

2019 ◽  
Vol V6 (I1) ◽  
pp. 1-9
Author(s):  
Hitler Louis ◽  
Peter Michael Dass ◽  
Haruna Ben Yaduma ◽  
Joseph Anazoba Johnson ◽  
Ndepana A. Gaya
Keyword(s):  
Aspergillus Niger ◽  
Physical Properties ◽  
Dust Particles ◽  
Low Density Polyethylene ◽  
Wood Dust ◽  
Low Density ◽  
Polyethylene Films ◽  
Properties Of Composites

Evaluation of deep drawability of flame-retardant magnesium alloy sheets

2019 ◽  
Vol 9 (2) ◽  
pp. 182-191
Author(s):  
Akihiro Minami ◽  
Hirokazu Tamura ◽  
Hidetoshi Sakamoto ◽  
Yoshifumi Ohbuchi ◽  
Yasuo Marumo
Keyword(s):  
Magnesium Alloy ◽  
Flame Retardant ◽  
Deep Drawability

Mechanical and Flammability Properties of Green Polyurethane Foam with Alumina Trihydrate as Flame Retardant

2017 ◽  
Author(s):  
Amanda Silva ◽  
Enio Henrique Pires da Silva ◽  
Danilo Janes ◽  
Romeu Rony Cavalcante da Costa ◽  
Giovanna Gabriela Crem Silva
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foam ◽  
Alumina Trihydrate

Synthesis of Hexaphenoxycyclotriphosphazene with Allyl Group and Application in Flame Retardant Acrylate Resin

2012 ◽  
Vol 29 (9) ◽  
pp. 1090
Author(s):  
Donghai YUAN ◽  
Anbin TANG ◽  
Jie HUANG ◽  
Hanbing MA
Keyword(s):  
Flame Retardant ◽  
Acrylate Resin
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