An intrinsic flame retardant epoxy resin with high transparency and strengthened mechanical property

2021 ◽  
pp. 51230
Author(s):  
Fu‐Qu Pang ◽  
Xin‐Duo Liu ◽  
Xian‐Ting Zheng ◽  
Yu‐Cai Lin ◽  
Rong‐Kun Jian
Keyword(s):  
Mechanical Property ◽  
Flame Retardant ◽  
Epoxy Resin ◽  
High Transparency

scholarly journals Highly transparent and flame-retardant epoxy composites based on a hybrid multi-element containing POSS derivative

RSC Advances ◽  
2017 ◽  
Vol 7 (73) ◽  
pp. 46139-46147 ◽  
Author(s):  
Cheng Liu ◽  
Ting Chen ◽  
Conghui Yuan ◽  
Ying Chang ◽  
Guorong Chen ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Flame Retardant ◽  
Epoxy Resin ◽  
Epoxy Composites ◽  
High Transparency ◽  
Flame Retardant Property

Epoxy resin modified with ODMAS comprising a POSS core and sixteen DOPO groups possess high transparency, excellent flame retardant property and enhanced mechanical strength.

Piperazine-modified ammonium polyphosphate as monocomponent flame-retardant hardener for epoxy resin: flame retardance, curing behavior and mechanical property

2016 ◽  
Vol 7 (17) ◽  
pp. 3003-3012 ◽  
Author(s):  
Yi Tan ◽  
Zhu-Bao Shao ◽  
Lei-Xiao Yu ◽  
Jia-Wei Long ◽  
Min Qi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Flame Retardant ◽  
Epoxy Resin ◽  
Smoke Suppression ◽  
Flame Retardance ◽  
Suppression Efficiency

PAz-APP (as a monocomponent hardener) can bring excellent flame retardance and smoke suppression efficiency to the EP system without sacrificing the mechanical properties and glass transition temperature.

Highly efficient flame‐retardant and transparent epoxy resin

2021 ◽  
Author(s):  
Zhong Liu ◽  
Zhao Yu ◽  
Tang Qiaolin ◽  
Zhang Kaixin ◽  
Deng Weihao ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Epoxy Resin ◽  
Highly Efficient

Preparation and properties of flame retardant epoxy resin modified by additive nitrogen-containing POSS-based molecule with eight DOPO units

2021 ◽  
Vol 28 (5) ◽  
Author(s):  
Rong Hu ◽  
Kaibin He ◽  
Xianghong Zheng ◽  
Birong Zeng ◽  
Guorong Chen ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Epoxy Resin

scholarly journals Dual UV-Thermal Curing of Biobased Resorcinol Epoxy Resin-Diatomite Composites with Improved Acoustic Performance and Attractive Flame Retardancy Behavior

2021 ◽  
Vol 2 (1) ◽  
pp. 24-48
Author(s):  
Quoc-Bao Nguyen ◽  
Henri Vahabi ◽  
Agustín Rios de Anda ◽  
Davy-Louis Versace ◽  
Valérie Langlois ◽  
...  
Keyword(s):  
Heat Release ◽  
Flame Retardant ◽  
Epoxy Resin ◽  
Flame Retardancy ◽  
Sound Absorption ◽  
Flexural Modulus ◽  
Construction Materials ◽  
Acoustic Properties ◽  
Low Frequencies ◽  
Compacting Pressure

This study has developed novel fully bio-based resorcinol epoxy resin–diatomite composites by a green two-stage process based on the living character of the cationic polymerization. This process comprises the photoinitiation and subsequently the thermal dark curing, enabling the obtaining of thick and non-transparent epoxy-diatomite composites without any solvent and amine-based hardeners. The effects of the diatomite content and the compacting pressure on microstructural, thermal, mechanical, acoustic properties, as well as the flame behavior of such composites have been thoroughly investigated. Towards the development of sound absorbing and flame-retardant construction materials, a compromise among mechanical, acoustic and flame-retardant properties was considered. Consequently, the composite obtained with 50 wt.% diatomite and 3.9 MPa compacting pressure is considered the optimal composite in the present work. Such composite exhibits the enhanced flexural modulus of 2.9 MPa, a satisfying sound absorption performance at low frequencies with Modified Sound Absorption Average (MSAA) of 0.08 (for a sample thickness of only 5 mm), and an outstanding flame retardancy behavior with the peak of heat release rate (pHRR) of 109 W/g and the total heat release of 5 kJ/g in the pyrolysis combustion flow calorimeter (PCFC) analysis.

scholarly journals Preparation and characterization of polydopamine/melamine microencapsulated red phosphorus and its flame retardance in epoxy resin

RSC Advances ◽  
2021 ◽  
Vol 11 (33) ◽  
pp. 20391-20402
Author(s):  
Chen Cheng ◽  
Yanling Lu ◽  
Weining Ma ◽  
Shaojie Li ◽  
Jun Yan ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Epoxy Resin ◽  
Shell Structure ◽  
Composite Shell ◽  
Intumescent Flame Retardant ◽  
Smoke Suppression ◽  
Flame Retardance ◽  
Red Phosphorus ◽  
Composite Shell Structure

Red phosphorus was coated by a polydopamine/melamine composite shell structure, which constituted an intumescent flame retardant with superior flame retardance and smoke suppression performance for epoxy resin.

scholarly journals An Effective Method for Preparation of Liquid Phosphoric Anhydride and Its Application in Flame Retardant Epoxy Resin

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2205
Author(s):  
Qian Li ◽  
Yujie Li ◽  
Yifan Chen ◽  
Qiang Wu ◽  
Siqun Wang
Keyword(s):  
Flame Retardant ◽  
Epoxy Resin ◽  
Epoxy Resins ◽  
Oxygen Index ◽  
Decomposition Temperature ◽  
Ease Of Use ◽  
Limiting Oxygen Index ◽  
Good Thermal Stability ◽  
Low Viscosity ◽  
The Impact

A novel liquid phosphorous-containing flame retardant anhydride (LPFA) with low viscosity was synthesized from 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and methyl tetrahydrophthalic anhydride (MeTHPA) and further cured with bisphenol-A epoxy resin E-51 for the preparation of the flame retardant epoxy resins. Both Fourier transform infrared spectroscopy (FT-IR), mass spectrometry (MS) and nuclear magnetic resonance (NMR) measurements revealed the successful incorporation of DOPO on the molecular chains of MeTHPA through chemical reaction. The oxygen index analysis showed that the LPFA-cured epoxy resin exhibited excellent flame retardant performance, and the corresponding limiting oxygen index (LOI) value could reach 31.2%. The UL-94V-0 rating was achieved for the flame retardant epoxy resin with the phosphorus content of 2.7%. With the addition of LPFA, the impact strength of the cured epoxy resins remained almost unchanged, but the flexural strength gradually increased. Meanwhile, all the epoxy resins showed good thermal stability. The glass transition temperature (Tg) and thermal decomposition temperature (Td) of epoxy resin cured by LPFA decreased slightly compared with that of MeTHPA-cured epoxy resin. Based on such excellent flame retardancy, low viscosity at room temperature and ease of use, LPFA showed potential as an appropriate curing agent in the field of electrical insulation materials.

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