Vinyl Ether Thermoset

Epoxy vinyl ester resins ver are an important class of high performance thermoset molding resins.

Vinyl ether thermoset.

Thus if a hard rigid thermoset is desired the divinyl ether concentration constitutes a higher percentage of the monomer mixture than in the case where a rubbery elastic thermoset resin is. They are produced by the addition of α β unsaturated carboxylic acids to epoxy resins. Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain. They were first used after world war ii and.

Novel vinyl ether thermosetting resins yoshihisa okamotot philip klemarczyk and susan levandoski loctite corporation 705 north mountain road newington ct 06111 usa received 30 april 1992. These resins form durable laminates and coatings. Nonwoven mats of these fibers were also stretchable and exhibited a much higher elongation at break of about 85. They were first developed for structural applications such as glass reinforced plastic radar domes on aircraft and graphite epoxy payload bay doors on the space shuttle.

229920001187 thermosetting polymers polymers 0 000 title claims description 24. Discuss 1 poly phenylene ether polymers 0 000 title claims abstract description 100. Vinylbenzyl ether terminated oligo 2 6 dimethyl 1 4 phenylene ether 1 has been commercialized by mitsubishi gas chemical in the name of ope 2st. Thermosets are reactive systems like un saturated polyester epoxy polyurethane acrylics and uv sys tems.

239000011347 resins substances 0 000 title description 51. 229920002554 vinyl polymers polymers 0 000 title description 2. Revised 1 october 1992 the divinyl ether of diallylbisphenol a veaba was investigated as a candidate for advanced composite matrix resin. Vinyl monomers are used in unsaturated polyester glass fibre reinforced artificial marble and gelcoat.

Methyl ethyl ketone peroxide mekp is one such hardening agent. This thermoset material can be used as an alternative to polyester and epoxy materials as the thermoset polymer matrix in composite materials where its characteristics strengths and bulk cost are intermediate between polyester and epoxy. The elastomeric nature of these vinyl ether based fibers can be partly attributed to their subambient t gand partly to the cross link density monomer structure and resulting network homogeneity. Vinyl ester resins are produced by the reaction esterification between an epoxy resin and an unsaturated monocarboxylic acid.

Resins for thermoset composites thermoset composites consist of a matrix the thermoset resin and reinforcements. A thermoset polymer matrix is a synthetic polymer reinforcement where polymers act as binder or matrix to secure in place incorporated particulates fibres or other reinforcements. Resins are bisphenol a diglycidyl ether dgeba and epoxy phenol novolac epn. 239000000203 mixtures substances 0 000 claims.