Flame-retardant epoxy resins fromo-cresol novolac epoxy cured with a phosphorus-containing aralkyl novolac

2002 ◽  
Vol 40 (14) ◽  
pp. 2329-2339 ◽  
Author(s):  
Ying Ling Liu ◽  
Chuan Shao Wu ◽  
Keh Ying Hsu ◽  
Teh Chou Chang
Keyword(s):  
Flame Retardant ◽  
Epoxy Resins ◽  
Phosphorus Containing ◽  
Novolac Epoxy

scholarly journals A bio-based phosphaphenanthrene-containing derivative modified epoxy thermosets with good flame retardancy, high mechanical properties and transparency

RSC Advances ◽  
2021 ◽  
Vol 11 (49) ◽  
pp. 30943-30954
Author(s):  
Wei Peng ◽  
Yu-xuan Xu ◽  
Shi-bin Nie ◽  
Wei Yang
Keyword(s):  
Mechanical Properties ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Epoxy Resins ◽  
Flame Retardants ◽  
The Past ◽  
Phosphorus Containing ◽  
Modified Epoxy

Phosphorus-containing flame retardants have received huge interest for improving the flame retardant behavior of epoxy resins (EP) over the past few decades.

Preparation and properties of halogen-free flame retardant epoxy resins with phosphorus-containing siloxanes

2009 ◽  
Vol 62 (6) ◽  
pp. 829-841 ◽  
Author(s):  
Jiapei Ding ◽  
Zhiqiang Tao ◽  
Xiaobiao Zuo ◽  
Lin Fan ◽  
Shiyong Yang
Keyword(s):  
Flame Retardant ◽  
Epoxy Resins ◽  
Phosphorus Containing ◽  
Halogen Free

Preparation and characterization of flame retardant epoxy resins based on phosphorus-containing biphenyl-type phenolic resin

e-Polymers ◽  
2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Jiapei Ding ◽  
Zhiqiang Tao ◽  
Lin Fan ◽  
Shiyong Yang
Keyword(s):  
Flame Retardant ◽  
Epoxy Resins ◽  
Phenolic Resin ◽  
Phosphorus Loading ◽  
Curing Agent ◽  
Good Thermal Stability ◽  
Phosphorus Containing ◽  
Strong Lewis Acid ◽  
Flame Retardant Properties

AbstractA phosphorus-containing biphenyl-type phenolic resin (PBP) was prepared by dehydration polycondensation of the DOPO-disubstituted 4,4’- biphenyldimethanol compound (BDCA-2DOPO) with phenol in the presence of strong Lewis acid , in which BDCA-2DOPO was prepared by the reaction of DOPO with 4,4'-biphenyldicarboxaldehyde. The PBP resin has been evaluated as the curing agent of o-cresol epoxy resins. Experimental results indicated that the PBPcured epoxy resins exhibited good thermal stability, high char yields at 700 oC and outstanding flame retardant properties. UL 94 V-0 classifications could be obtained when the phosphorus loading in the epoxy resin is higher than 1.8 wt%.

Advanced flame-retardant epoxy resins from phosphorus-containing diol

2005 ◽  
Vol 43 (16) ◽  
pp. 3510-3515 ◽  
Author(s):  
M. José Alcón ◽  
Gemma Ribera ◽  
Marina Galià ◽  
Virginia Cádiz
Keyword(s):  
Flame Retardant ◽  
Epoxy Resins ◽  
Phosphorus Containing

Synthesis of new phosphorous-containing flame retardant and the properties of flame retardant epoxy resins

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hongkun Zhang ◽  
Xianyun Gong ◽  
Zan Li ◽  
Yang Wang
Keyword(s):  
Flame Retardant ◽  
Epoxy Resins ◽  
Combustion Process ◽  
Carbon Layer ◽  
Toxic Substances ◽  
Content Type ◽  
Practical Applications ◽  
The Past ◽  
Phosphorus Containing ◽  
Low Toxicity

PurposeThe epoxy resins need to be added with flame retardant to ensure safety in practical applications. There were a lot of highly toxic substances in the flame retardant used in the past, which caused greater harm to human body and the environment. Therefore, this study aims to propose a research on the synthesis of new phosphorous-containing flame retardant and the properties of flame retardant epoxy resins.Design/methodology/approachThe flame retardant intermediate DOPO was synthesized using o-phenylphenol as the substrate. The intermediate was mixed with D4Vi under certain conditions to synthesize a new phosphorous-containing flame retardant. The flame retardant was added to the epoxy resins to prepare the flame retardant epoxy resins.FindingsThe experimental results show that the synthetic new phosphorous-containing flame retardant is far less harmful than the flame retardant used in the past and has extremely low toxicity, which is suitable for use in practical projects.Originality/valueThe new phosphorus-containing flame retardant synthesized by forms a more uniform and dense carbon layer in the combustion process, which well protects the underlying materials, thus improving the flame retardancy of epoxy resin materials. The harm of the new phosphorus-containing flame retardant is far less than that of ordinary flame retardant. The flame retardant used in the past has very low toxicity and is suitable for practical engineering.

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