Epoxy Antioxidant Flame Restardant Dopo

dopo‐based curing flame retardant of epoxy composite

DOPO‐based curing flame retardant of epoxy composite

Phosphorus‐containing flame retardant (HBAEA‐DOPO) for epoxy resin was synthesized by addition reaction of 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO) with bis [2‐ (4‐hydroxybenzylideneamino)ethyl]amine (HBAEA) that was synthesized via 4‐hydroxybenzaldehyde with diethylenetriamine.

Get Price
century multech, inc. - dopo

Century Multech, Inc. - DOPO

DOPO is a non-toxic, halogen-free flame retardant that can be used for epoxy resin as a curing agent with super PCB, as well as in semiconductor packaging materials, and LED. It can also be used for PU, polyester, polyamide, and more.

Get Price
flame retardant and toughening behaviors of bio‐based dopo

Flame retardant and toughening behaviors of bio‐based DOPO

Then, as co‐curing agent, FPD was used to prepare flame retardant epoxy thermosets (EP) cured by 4, 4′‐diaminodiphenyl methane. The incorporated FPD improved the flame retardancy and toughness of epoxy thermoset, simultaneously.

Get Price
preparation and characterization of dopo-functionalized

Preparation and Characterization of DOPO-Functionalized

The obtained MWCNT-ODOPB was well dispersed into epoxy resins together with aluminum diethylphosphinate (AlPi) to form flame-retardant nanocomposites.

Get Price
flame-retardant effect of a phenethyl-bridged dopo

Flame-retardant effect of a phenethyl-bridged DOPO

Flame-retardant effect of a phenethyl-bridged DOPO derivative and layered double hydroxides for epoxy resin† Wei Yan, *abc Jie Yu,*b Mingqiu Zhang,c Shuhao Qin,b Tao Wang,a Weijiang Huangb and Lijuan Longb Flame-retardant epoxy resin (EP) composites were prepared by the incorporation of a phenethyl-bridged

Get Price
nitrogen/sulfur-containing dopo based oligomer for highly

Nitrogen/sulfur-containing DOPO based oligomer for highly

Zhang et al. [ 18] developed a flame-retardant epoxy resin with DOPO-containing polyhedral oligomeric silsesquioxane, and it showed highly improved flame retardancy due to the P–Si synergy.

Get Price
preparation and properties of flame-retardant epoxy resins

Preparation and properties of flame-retardant epoxy resins

To prepare flame-retardant epoxy resin, phosphorus compound containing di-hydroxyl group (10-(2,5-dihydroxyphenyl)- 9,10-dihydro-9-oxa-10-phospha phenanthrene-10-oxide, DOPO-HQ) was reacted with uncured epoxy resin (diglycidyl ether of bisphenol A, YD-128) and then cured using a curing agent (dicyandiamide, DICY). This study focused on the effect

Get Price
an overview of some recent advances in dopo-derivatives

An overview of some recent advances in DOPO-derivatives

DOPO-derivatives 16b and 17 were investigated as flame retardant additives for epoxy resin (Table 2),. Table 2. Some representative UL-94 and LOI test results of 16b and 17 formulations in epoxy resins,.

Get Price
highly effective p–p synergy of a novel dopo-based flame

Highly Effective P–P Synergy of a Novel DOPO-Based Flame

A novel flame retardant (FR) DOPO-PEPA, which was synthesized via Atherton–Todd reaction between 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and 1-oxo-4-hydroxymethyl-2,6,7-trioxa-l-phosphabicyclo [2.2.2]octane (PEPA), was used as an additive-type FR in epoxy resin (EP).

Get Price
flame retardant dopo - hunan chemical bv

Flame Retardant DOPO - Hunan Chemical BV

CAS number 35948-25-5. Flame Retardant DOPO. Product name: DOPO Product Form: Solid Chemical name: 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide

Get Price
preparation and flame retardancy of dopo–based epoxy resin

Preparation and flame retardancy of DOPO–based epoxy resin

The results indicated that the cured resins exhibited high glass transition temperature and excellent flame-retardant properties. BDM promoted the carbonization property of phosphorus-containing epoxy resin and facilitated the formation of cross-linked char layer with compact and continuous structure, thus enhancing the flame-retardant properties.

Get Price
dopo flame retardant, dopo flame retardant suppliers

dopo flame retardant, dopo flame retardant Suppliers

GOYENCHEM- DOPO is an new designed phosphorus halogen-free flame retardant which is mainly applied on epoxy resin for PCB, and various of thermosetting resin.

Get Price
flame retardant epoxy derived from tannic acid as biobased

Flame Retardant Epoxy Derived from Tannic Acid as Biobased

Abstract Flame retardant epoxy is closely related to the safety of a human’s life against the surrounding fire threat. Flame retardant properties can be obtained by supplementing with additives, such as phosphorus compounds and nanomaterials, or synthesizing flame retardant monomers.

Get Price
flame-retardant effect of a phenethyl-bridged dopo

Flame-retardant effect of a phenethyl-bridged DOPO

Flame-retardant epoxy resin (EP) composites were prepared by the incorporation of a phenethyl-bridged DOPO derivative (DiDOPO) and modified layered double hydroxide (OLDH). In addition, the flame-retardant behaviour, thermal stability, synergism between DiDOPO and OLDH, and mechanical properties of the flame-retard

Get Price
recent developments in halogen free flame retardants

Recent Developments in Halogen Free Flame Retardants

In a separate container, the epoxy resin is mixed with additives such as curing agents, accelerators, fillers and flame retardants. The woven glass is then impregnated with the partially cured resin. The resulting partially cured reinforced material is known as pre-peg. Multiple pre-pegs are then thermally pressed to obtain a core.

Get Price
synergistic flame-retardant effect of epoxy resin combined

Synergistic Flame-retardant Effect of Epoxy Resin Combined

Phenethyl-bridged DOPO derivative (DiDOPO) was combined with graphene nanosheets (GNSs) in epoxy resin (EP) to improve its flame retardancy. The results indicated that the introduction of only 1.5 wt% DiDOPO/1.5 wt% GNS in EP increased the limited oxygen index (LOI) from 21.8% to 32.2%, hence meeting UL 94 V-0 rating.

Get Price
a review of current flame retardant systems for epoxy resins

A Review of Current Flame Retardant Systems for Epoxy Resins

Flame retardant epoxy coatings continue to make use of ammonium polyphosphate plus char-forming additives.

Get Price
9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (dopo

9,10-DihydrO-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO

Hong Jin offers you quality 9,10-dihydrO-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO flame retardant) CAS 35948-25-5, meeting the highest quality standard. Our factory has established an international trade organization at your service. If you are interested in it, welcome to place orders with our factory. Competitive price and service are available.

Get Price
fire retardant epoxies - ptm&w

Fire Retardant Epoxies - PTM&W

PT5358 is an epoxy laminating system with cured fire retardant characteristics that meets the requirements of the UL 94 V-0 specification. The cured physical properties of PT5358 are quite good, and laminates made with it will give long service in the most demanding applications.

Get Price
flame retardant systems that perform – olin epoxy

Flame Retardant Systems That Perform – Olin Epoxy

Flame Retardant Systems. Our line of Flame Retardant Systems offers the reliability, protection and performance you need, backed by the local customer support Only Olin can provide, virtually anywhere in the world.

Get Price