Benzene Qin colophony

Benzene and Qin colophony relatively acyl of phenolic aldehyde colophony, epoxy resin, double Ma Lai inferior amine colophony provide a characteristic more. Its function has integrated advantage, can make already bear the colophony matrix of force structure composite material, can use again with preparation function composite material, those who develop its solid to have is certain and idiosyncratic. In view of its exceedingly good physics mechanical function is mixed technical properties, the low cost of peculiar material function and raw material is changed, there is wide applied perspective in aerospace composite material.

Picture origin: Division appropriate high polymer

Benzene and function of Qin resinous

Benzene and Qin colophony is colophony of sex of solid of a kind of when rise in the development on foundation of colophony of traditional phenolic aldehyde new-style heat, in maintain colophony of traditional phenolic aldehyde on function of admirable flame retardation, heat-resisting, dielectric protecties, good hardness and inferior value basis, can be improved significantly and raise phenolic aldehyde resinous a lot of function. The phenolic aldehyde colophony with more traditional photograph, benzene and systole of the bulk after Qin colophony has solidify approachs Yu Ling, bibulous rate low, need not not release when agent of solidify of strong acid alkali, solidify young member, monomer and before body structure can design a space to wait for an advantage greatly.

Express 2 benzene and mechanical function and other resinous compare physics of model of Qin colophony

Benzene and Qin colophony applies in domain of aerospace composite material

Benzene and Qin colophony is more current and extensive acyl of use annulus oxygen, phenolic aldehyde, double Ma Lai inferior the colophony such as amine has his the latent capacity with outstanding integral performance, a variety of use can be sent in space navigation composite material, have extensive applied field. Regard colophony as matrix, preparation advocate bear force and second bear force structure composite material is used beforehand dip makings and RTM use perfusion resin, composite material shapes with the mould beforehand dip makings, and the structural adhesive of aerospace composite material. Other external use burns material at plane cabin internal resistance, rocket motor prevent heat to fight ablation material to wait.

1.Use as structural composite material beforehand matrix of dip makings colophony

Carbon fiber enhances benzene and Qin colophony beforehand dip makings

Benzene and Qin colophony holds concurrently with acyl of double Ma Lai inferior the hear resistance of amine colophony close, fight scathing performance and technical properties similarly with annulus oxygen, the high fever that adds oneself solid to have / wet function brings higher working temperature, solidify process is close to 0 systole, outstanding room temperature stores and transport property, integral performance actor, sexual price is compared tall, have very big appeal to aerospace composite material, make its make the inevitable choice of matrix of colophony of prospective aerospace composite material.

2.Use as engine room is flame retardant material

Benzene and Qin colophony does not contain free aldehyde and free phenol, without volatile, its composite material can reach level of newest environmental protection technology. Be like the AP 2091 standard of airbus company, accord with federal of European standard JAR/ fire prevention of airline standard FAR, prevent smoke and gas defence regulation, have good mechanical performance at the same time, can form the good composite material appearance that does not have space, add material flame retardant character and competitive cost of material, make benzene and composite material becomes Qin plane interior trim optimal choice, according to saying to be able to replace phenolic aldehyde colophony.

3.Use as mould composite material

Benzene and Tg of Qin colophony exceeds 250 ℃ , heat-resisting performance is good, long mould life is had below high temperature as mould composite material, can work continuously in 200 ℃ , and do not need to change often mould or undertake the mould is maintained. Benzene and systole of bulk of around of solidify of Qin colophony is very small, even 0 systole, coefficient of expansion is small, without apparent bulk effect, be helpful for maintaining composite material to make a strict dimension common difference as mould material, reduce the treatment after solidify, saved raw material, the handling time after decreasing, reduced cost; Amount of solidify process exothermic is small, also be benzene and Qin colophony uses as the one big advantage of mould composite material, so thick, thin not all or quality all can be made with the pattern with old ply greatly, do not need to do any special processing, without solid

In changing a course come loose not easily to heat up and happen explode the problem that get together.

4.Use as adhesive

Benzene and performance of heat-resisting of Qin colophony is good, solidify systole is almost 0, hot / wet function actor. And come with annulus oxygen, double horse acyl inferior the colophony of hot solid sex such as amine, phenolic aldehyde and most project are thermoplastic colophony photograph has been allowed, it is the select material object of adhesive of high temperature structure. With benzene of couplet benzene twin neighbor benzene of 2 armour nitrile and Qin BZ-B serves as adhesive, hear resistance actor, the temperature of 5% is in hot weightlessness of the quality in nitrogen 478 ℃ . To test piece of different aluminium alloy stick receive function experiment to make clear, pull the surface to destroy belong to cohesion to destroy. With double phenolic A benzene and the modified benzene that colophony of 2 Qin gives priority to body and 24.8 MPa of shear strength of drawing of BA-a of Qin colophony, 150 Min of time of the gel when 160 ℃ , have good high temperature to stick the potential that receives a dose.

5.Use as ablation material

Defend in heat material domain, phenolic aldehyde colophony is the earliest undoubtedly and the matrix of ablation composite material that still uses in great quantities up to now. Wait for hi-tech system to aircraft of rocket motor, missile, space, phenolic aldehyde colophony serves as be able to bear or endure ablation material is the choice that suits quite, because its are low-cost, ablation function accords with use requirement. Benzene and Qin colophony passes solidify of open loop polymerization, form structure of network of cross-linking of resinous of similar phenolic aldehyde, because of this benzene and the phenolic aldehyde colophony that Qin also weighs open loop is aggregate, be had naturally and the ablation performance with phenolic aldehyde similar colophony. Its raw material goes to the lavatory to be gotten easily, cost is low, condensate hear resistance, corrosion resistance and insulation property are very good, and overcame weakness of resinous of traditional phenolic aldehyde, basically be rate of charcoal of the incomplete after ablation under 60% , although incomplete charcoal is led,rise via modified hind, but the characteristic as a result of molecular structure, young member compound is released in aggregate process, restricted the application in ablation domain. Benzene and reaction of polymerization of open loop of Qin colophony does not emit young member substance, ablation is led into charcoal tall, have apparent treatment to shape advantage.

Benzene and future of Qin colophony develops

Benzene and Qin colophony has superior integral performance, its composite material already began to cut a figure in space navigation industry, get the wide attention of personnel of the technology inside course of study, be considered as the new-style colophony stuff that has development latent capacity most. But, this kind of colophony develops time to still do not grow after all, had not achieved acyl of annulus oxygen, phenolic aldehyde, double Ma Lai inferior the colophony such as amine in that way autumn, still put in certain limitation in a few respects, still need to continue to consider, improve and develop.

Reference material: Zhang Feng breaks up. Benzene and Qin colophony and its apply mediumly in space navigation composite material [J] . High-tech fiber and application, 2016, 41(01):10-23.

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