One, the depart below the situation that studies setting is not destroying combinative substrate is multilayer it is quite charming that structural ability applies to electron, dentistry and building. Although put,be in a lot of taking off to stick a technology, heat up for example expand grain and the desorption that are based on solvent, but just allow to move when activation only normally permission means is particularly difficult. However, these design challenges are OK can heat up the “ that spark through using temporarily adhesive ” will solve, this kind of “ temporarily adhesive ” can begin from existing polymer matrix, offer reliable physical performance change to depart the base material of agglutinate. Temporarily the unique part of adhesive depends on an interface (namely adhere) with noumenon inside (namely cohesive force) interaction can be controlled alone or process designing. Crucial is, promote sticking exact mechanism to will depend on the molecular design of glue sticky agent. Use at temperature recently revulsive take off a few stuck chemical platform to include 2 sulfur to bolt chemistry of exchange, Diels-Alder, ester is exchanged, exchange with boric acid ester. The furan that reports extensively especially - Ma Lai acyl inferior amine Diels-Alder system, its provisionality drew the attention of academia and industry industry. However, furan - Ma Lai acyl inferior use extensively of amine system be restricted all the time, because happen to be taken off significantly below the temperature under 100 ℃ ,stick, and often complete liquefaction is controlled in 120 ℃ . In addition, (Afresh) generated furan and Ma Lai acyl inferior amine radical is round not heat-resisting, the meeting when heating produces all sorts of deputy reaction, include Ma Lai acyl inferior of amine all aggregate. Accordingly, study dispute of other and chemical platform often has fun at, these chemical platform can more reliable and can control the land more in the material that will dynamic covalent behavior introduces larger volume, and won't the accident takes off stuck risk. It is better that those who stick the effect is take off in the matrix that temperature asks more expensive system is research need strong agglutinate choice, use at for example (half) structural adhesive. Structural adhesive is the key that the object in waiting for main industry for the sources of energy, building and car creates light simple structure. Typical recipe includes a kind of compound that can flow, it and polypropylene acerbity ester, polyurethane or epoxy resin react and cross-linking. Epoxy resin heats up solid sex colophony to be able to say is one of the most relevant structural adhesive categories, among them (dynamic) function can pass all sorts of solidify agents, colophony, modifier and filler to introduce. The polyamide solidify agent that is used at annulus oxygen system is agent of a kind of well-known amino polyamide solidify, they often are used to in the flexibility that recipe of traditional annulus oxygen does not add below the circumstance of sacrificial thermal stability and tenacity. However, as a result of its inherent adhesive strength, as a result of its the element is designed, acyl amine key is considered as what cannot go against normally. 2, study positive result recently, ghent university Johan M. Professor Winne and Filip E. Collaboration of Professor Du Prez reported amine of acyl of Jiang Juhu Po (PSA) and get together 2 acyl of the fifth of the ten Heavenly Stem amine (PGA) serves as agent of solidify of dynamic epoxy resin to be in charming reactivity trait is shown in can taking off the design that sticks glue sticky agent. PSA and PGA solidify agent can be passed use amber acid 2 armour ester or the fifth of the ten Heavenly Stem 2 armour ester undertakes 2 acid be handled simply, from inside agents of all sorts of classical 2 amine solidify relaxed preparation. They are reflected in the off-the-peg application in technology of sticky agent of sticky agent of annulus oxygen glue in main body of glue sticky agent take off stick and on the interface that changes the face with the function. To achieve this one goal, developed be based on cricoid acyl inferior the silicon alkyl priming paint of amine (the body before serving as PSA or PGA) , be in in process of epoxy resin solidify glue sticky agent - before interface of content be stickinged forms reversible acyl amine to bolt, its besmear Fu arrives apparently. The choice between PSA and PGA key allows the key chemistry that differs through be being used in two positions to adjust dynamic character, undertake independently on the surface and noumenon even.

3, graph article fast give a picture 1. The design is new-style and solid with the applied research of sticky agent of reversible annulus oxygen glue politic sketch map is summarized Graph 2. Sketch map of process of epoxy resin solidify above all, fall for the condition of 1 in the Maerbi of annulus oxygen alkyl and amine, instantly with aether of glycerine of shrink of double phenolic A2 (BAGE) reaction, generate cannot take off the annulus oxygen that divide fiducial content (ER) . The viscoelasticity that this reference material can use at comparing dynamic epoxy resin and thermomechanical function. In the 2nd pace, mixture of will total amine is used at with the fifth of the ten Heavenly Stem 2 acid the condensation polymerization reaction of 2 armour ester, ester amine Maerbi (Ester/NH2) is 0.83, response issues 16 hours in 80 ℃ , get strong PGA solidify dose (PGA-1) . Because need to obtain,have two amine the polyamide of end radical, chemical and metric it is 1.04eq than excessive. Theoretic computation NH radical is round, when binary ester monomer after full work out, NH radical is round cannot farther catenary grows. The result is, of about 65% usable and amino with dynamic acyl amine key reacts, this is to gift place of enough and reversible behavior is indispensible. Adjust a kind of method of degree of polymerization is to replace a share (0.06 Eq. ) , and the NH luscious group that does not need to add excess and the amount that reduce key of dynamic acyl amine. 2-(1- piperazine base) the amine compound in the amine mixture of ethylamine (2)(PGA-2) . Predicting compound the intermediate amine of 6 and the fifth of the ten Heavenly Stem the reaction of 2 armour ester gets 2 sick at heart to larger dimensional block, is not the uncle amine that is close to more easily, because this can have the effect to agent of catenary block block. However, considering expectant application, need only one part (the fifth of the ten Heavenly Stem of 40%) 2 armour ester replaces 2 acid it is the amber acid ester with stronger active (7) mixture (PGA-3) , inside the inferior temperature window that can define in the user revulsive and reversible behavior. Graph 3. Hot property and the PGA solidify data that the article reports mechanical performance show excellent thermal stability. Can undertake below the pressure that in the compression of 250°C mould pressing mixes 4 tons (afresh) treatment. When designing tall cross-linking to spend sticky agent of annulus oxygen glue, another main consideration factor is good balance is acquired between tenacity and mechanical intensity, in order to avoid fragile sexual behavior. The stress that portrays from inside graph 3c - curve of meet an emergency can observe, when using agent of dynamic polyamide solidify, can observe arrive to implement the apparent change that extends a gender more from brittleness. These results were highlighted dynamic polyamide introduces to bolt in epoxy resin, especially when PGA, the improvement of mechanical function. Graph 4. Solution of A) relax comfort, B) leaves and the temperature dependence of C) apparent viscosity concerns according to maxwell, cause viscosity to drop with cross-linking density and the modulus that concern flabbily and flabby metropolis. Accordingly, the function that is worth to study these two parameter serve as temperature (graph 4) . Although bolt commutative rate decides measure is amine of 2 armour acyl,unit solution leaves, but because extreme of generation dissociate catenary is mixed,in 230 ℃ above sufficient solution cross-linking is met reduce flexibility and bring about flabby rate to increase. Next, can give the apparent temperature dependence of material from maxwell relation computation. Graph 5. Dynamic polyamide - the agglutinate function of epoxy resin network is after the temperature limits with the dynamic the most hopeful action that decided integral solidify sample, receive those who cut an experiment to decide glue of modified annulus oxygen through building (take off stick) and repeat used latent capacity. The sticky agent of rubber of jackknife area paint that defines through be in issues solidify 8 hours in 120°C, right aluminium board undertakes coating is mixed stick receive. Come when PGA-1 of dynamic epoxy resin of PGA-3 build receive shear strength (when ~7 Mpa) and ER(~4 Mpa) of static epoxy resin undertake comparative, can observe of about 2 times rise. Accordingly, (Dynamic) the accretion that acyl amine bolts increased conglutinate power, what this can use interior of main body material and metallic face is strong (hydrogen) key will explain. To begin the aluminous underlay with new detached agglutinate, heat to overlaping area undertook (200°C, 2 minutes) with pressure (2 tons of) . Cool flat gradually next room temperature, so that have enough time / temperature undertakes sufficient key rebuilds. Interesting is, repeat when the sample that repeats use ” to these “ when undertaking building receiving cutting an experiment, of PGA-1 and PGA-2 stick receive function to restore to be as high as 90% to 95% , and PGA-3 shows only be as high as 60% to restore to the part of 65% . Graph 6. The sketch map that uses all sorts of silicon alkyl priming paint to undertake exterior function is changed and token to change function of base material surface, above all, ding Er acyl inferior amine or the fifth of the ten Heavenly Stem 2 acyl inferior amine and Xi propyl bromine undertake SN2 reacts, the acyl that makes so that alkene decorates inferior amine. Next, acyl of Ding Er of N- Xi propyl inferior 2 acyl of amine and the fifth of the ten Heavenly Stem of N- Xi propyl inferior amine with 3 second alkyl of oxygen radical silicon undertakes silicon hydrogen sulfide reacts, get containing Ding Er acyl inferior the compound of amine 9 and contain the fifth of the ten Heavenly Stem 2 acyl inferior the compound of amine 10. Next, the compound of silicon alkyl priming paint that uses 2wt% 11, 9 with 10 pairs aluminous underlay undertakes the function changes processing, in order to produce the appearance of pair of reaction since uncle amine. The application of this kind of priming paint is the bottom material immerses normally in 4: The alcohol of 1: In water mixture, contain among them specific coupling agent of proportional silicon alkyl, produce the thin coating of 10-100 Nm thereby. Scanning repeated to produce same result in the different position of metallic surface, affirmed cover range thoroughly. Graph 7. The adhesive strength of epoxy resin is in successful ground to undertake modified hind to aluminous underlay, it is recipe of solidify of applied glue sticky agent next, the base material that proves to assemble is taken off effectively stick. For this, used annulus of hot solid sex recipe of solidify of oxygen radical ER, because of it won't from (blame function is changed) aluminous surface shows heat to take off stick. The interface of surface of modified of all silicon alkyl combined intensity to increase 2 times almost, increase 7MPa from 4MPa. In addition, can detect now the surface (adhere) with bulk (cohesion) invalidation, make clear adherent force to get ameliorative. Interesting is, annulus oxide function changes the surface to won't upright guide any conglutinate restore, all sample are taken off effectively stick (ER-E except) , the method is to will be stuck receive build receive cut contact to cool instantly after solidify room temperature (quench through liquid nitrogen) the heat treatment with junior brief travel (200 ℃ , 2 minutes of) . This can enclothe polymer of alkyl having silicon through surface of every base material fact of this be related will understand, this leaves a process medium to showing the join sex that lost as sticky as glue agent in solution of amine of 2 armour acyl. 4, conclusion and look into the place on put together to narrate, this research introduced a kind solid and the platform of solidify of epoxy resin trends that uses easily, revealed it to be in what can accuse to stick is high temperature resistant dynamic temporarily the application in adhesive design. Through mixing industrial recipe stylist only the city with hep place makes work monomer, preparation can use as the PGA of agent of solidify of trends of epoxy resin material gets together beforehand body. With the epoxy resin of amine sclerosis referenced photograph is compared, acquired better hot performance and mechanical property. In addition, stream change learn an experiment to confirm, when heating, amine of 2 armour acyl - acyl inferior the change that amine balances allows to be in only thermoplastic limits of plastic typical treatment temperature (230°C comes data flow introduces inside 280°C) . Through regarding glue as sticky agent the epoxy resin of modified, increased pair of metal base material stick receive, can introduce through reversible felt at the same time stick and again agglutinate function. The most important is, inferior amine - silicon alkyl priming paint is come out by development, allow to be aimed at reversible conglutinate independently. Use these small bound facing, although dynamic key is done not have in material,make clear, also can win interesting heat (take off) bond function. Because this kind of finishing is involved,be opposite almost any simple modified that contain hydroxyl surface, accordingly it is considered as the important complement that sticks technical domain to be being had. Accordingly, these discovery will conduce to development not only new-style the epoxy resin related to industry, still will be structural adhesive (take off stick) mechanism offers new view.