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DOPO-HQ modified phenolic epoxy resin is a high-performance, halogen-free flame retardant resin designed for electronics, featuring superior thermal stability and high char formation. By using 10-(2,5-dihydroxyphenyl)-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO-HQ) to modify phenolic structures, it achieves UL-94 V-0 ratings while maintaining high glass transition temperatures (
).
Key Characteristics and Benefits
- Superior Flame Retardancy: The rigid biphenyl, phosphorus moiety, and reactive phenol group in DOPO-HQ provide high reactivity and effectiveness in preventing fire.
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Web results
DOPO-HQ modified phenolic epoxy resin
Nanjing Yolatech Co., Ltd.
https://www.yolatech.com › dopo-hq-modified-phenolic-...
Nanjing Yolatech Co., Ltd.
https://www.yolatech.com › dopo-hq-modified-phenolic-...
DOPO modified phenolic epoxy resins are halogen-free flame retardant epoxy resins, and are mainly used in the fields of halogen-free flame retardant printed ...Read more
Dopo-Hq Modified Phenolic Epoxy Resin - China Factory, ...
dongfang-insulation.com
https://www.dongfang-insulation.com › dopo-hq-modifi...
dongfang-insulation.com
https://www.dongfang-insulation.com › dopo-hq-modifi...
Our polarizer protective film and release film base film are made of high-quality PET base film, which is specially designed for optical applications. The film ...Read more
Preparation of DOPO-HQ and siloxane-modified epoxy ...
Sage Journals
https://journals.sagepub.com › doi
Sage Journals
https://journals.sagepub.com › doi
Jan 6, 2025 — This work elucidates the impact of silicon-phosphorus synergy on the mechanical and flame-retardant properties of the resin, which is of great significance for ...Read more
Phosphorus-containing active esters modified ...
ScienceDirect.com
https://www.sciencedirect.com › article › abs › pii
ScienceDirect.com
https://www.sciencedirect.com › article › abs › pii
by Z Fu2024Cited by 70 — DPO-HQ modified epoxy resin passed the UL-94 V-0 ... The esterification reaction between the phenolic hydroxyl groups in DPO-HQ and DOPO ...Read more
Synthesis and Application Studies of DOPO-Based ... - PMC
PubMed Central (PMC) (.gov)
https://pmc.ncbi.nlm.nih.gov › articles › PMC8840307
PubMed Central (PMC) (.gov)
https://pmc.ncbi.nlm.nih.gov › articles › PMC8840307
by TS Haubold2022Cited by 9 — DOPO-HQ proved to be the most effective additive regarding the reaction against small flames at an astonishingly low phosphorous concentration of below 0.1 wt%, ...Read more
People also ask
Web results
CAS 99208-50-1 DOPO-HQ
Alfa Chemistry
https://flame-retardant.alfa-chemistry.com › product › do...
Alfa Chemistry
https://flame-retardant.alfa-chemistry.com › product › do...
DOPO-HQ is a newly-designed,non-halogenated flame retardant. Due to the rigidbiphenyl,the phosphorus moiety，and the reactive phenol group,DOPO-HQ cancrosslink ...Read more
DOPO modified phenolic epoxy resin
Nanjing Yolatech Co., Ltd.
https://www.yolatech.com › dopo-modified-phenolic-ep...
Nanjing Yolatech Co., Ltd.
https://www.yolatech.com › dopo-modified-phenolic-ep...
DOPO epoxy resin as a starting material, which is highly effective in flame retardancy and less likely to produce toxic gases.Read more
Epoxy resin composition and article made therefrom
Google Patents
https://patents.google.com › patent
Google Patents
https://patents.google.com › patent
The DOPO-HQ epoxy resin may be any one or more selected from DOPO-HQ-containing phenolic novolac epoxy resin, DOPO-HQ-containing cresol novolac epoxy resin and ...Read more
Synthesis of new DOPO derivatives and investigation of their ...
RSC Publishing
https://pubs.rsc.org › content › articlehtml
RSC Publishing
https://pubs.rsc.org › content › articlehtml
by CT Duc2024Cited by 9 — DOPO derivatives, which are organophosphorus compounds, are highly effective components of flame retardant epoxy composites due to their good ...Read more
Preparation of DOPO-HQ and siloxane-modified epoxy ...
Sage Journals
https://journals.sagepub.com › doi › abs
Sage Journals
https://journals.sagepub.com › doi › abs
by Y Ji2025Cited by 3 — The enhancement and toughening of the resin were simultaneously achieved through the silicon-phosphorus synergistic modification. The flame ...Read more