{"id":14804,"date":"2024-10-30T03:58:40","date_gmt":"2024-10-30T03:58:40","guid":{"rendered":"https:\/\/www.epicmicron.com\/?p=14804"},"modified":"2024-10-30T05:33:32","modified_gmt":"2024-10-30T05:33:32","slug":"cant-figure-out-the-adhesive-formula-add-powder","status":"publish","type":"post","link":"https:\/\/www.epicmicron.com\/fr\/cant-figure-out-the-adhesive-formula-add-powder\/","title":{"rendered":"Vous ne parvenez pas \u00e0 trouver la formule de l&#039;adh\u00e9sif ? Ajoutez de la poudre !"},"content":{"rendered":"<p>D\u00e9velopper des formules adh\u00e9sives peut \u00eatre un v\u00e9ritable d\u00e9fi. Le principal probl\u00e8me r\u00e9side dans la n\u00e9cessit\u00e9 de formules cibl\u00e9es. De nombreuses mati\u00e8res premi\u00e8res adapt\u00e9es doivent \u00eatre combin\u00e9es pour obtenir les propri\u00e9t\u00e9s souhait\u00e9es, ce qui n\u00e9cessite des essais et des erreurs continus pour r\u00e9soudre les contradictions inh\u00e9rentes. En particulier lorsqu&#039;il y a un goulot d&#039;\u00e9tranglement, l&#039;introduction d&#039;une option suppl\u00e9mentaire peut conduire \u00e0 une avanc\u00e9e significative.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"449\" height=\"300\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/10\/adhesive-formulas.jpg\" alt=\"\" class=\"wp-image-14805\" style=\"width:709px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/10\/adhesive-formulas.jpg 449w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/10\/adhesive-formulas-300x200.jpg 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/10\/adhesive-formulas-18x12.jpg 18w\" sizes=\"(max-width: 449px) 100vw, 449px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Principales difficult\u00e9s dans le d\u00e9veloppement de formules adh\u00e9sives<\/strong><\/h2>\n\n\n\n<p>Les d\u00e9fis li\u00e9s \u00e0 la cr\u00e9ation de formules adh\u00e9sives peuvent \u00eatre mieux compris \u00e0 l&#039;aide d&#039;exemples pratiques. Tang Long et al. ont explor\u00e9 une nouvelle m\u00e9thode de d\u00e9veloppement de formules sp\u00e9cifiquement pour les composants polyols dans les adh\u00e9sifs polyur\u00e9thanes \u00e0 deux composants. Leur approche visait \u00e0 \u00e9quilibrer le compromis de performance entre une faible duret\u00e9 et une force de liaison \u00e9lev\u00e9e.<\/p>\n\n\n\n<p><strong>Optimisation des mati\u00e8res premi\u00e8res<\/strong><\/p>\n\n\n\n<p>Les auteurs ont commenc\u00e9 par utiliser une m\u00e9thode exp\u00e9rimentale orthogonale pour optimiser les types de mati\u00e8res premi\u00e8res utilis\u00e9es. Cette \u00e9tape s&#039;est av\u00e9r\u00e9e cruciale pour identifier les composants les plus adapt\u00e9s \u00e0 la formulation de l&#039;adh\u00e9sif.<\/p>\n\n\n\n<p><strong>Ratios de r\u00e9glage fin<\/strong><\/p>\n\n\n\n<p>Ils ont ensuite utilis\u00e9 la conception exp\u00e9rimentale personnalis\u00e9e de JMP pour optimiser les ratios des mati\u00e8res premi\u00e8res s\u00e9lectionn\u00e9es. Cette m\u00e9thode permet d&#039;\u00e9viter efficacement le d\u00e9fi courant consistant \u00e0 traiter simultan\u00e9ment les deux types de mat\u00e9riaux et les ratios dans le d\u00e9veloppement de formules conventionnelles.<\/p>\n\n\n\n<p>Les r\u00e9sultats de leur \u00e9tude d\u00e9montrent que cette m\u00e9thode innovante a r\u00e9pondu avec succ\u00e8s aux exigences contradictoires de faible duret\u00e9 et de force de liaison \u00e9lev\u00e9e des adh\u00e9sifs. Ils ont obtenu un adh\u00e9sif polyur\u00e9thane caract\u00e9ris\u00e9 par :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Duret\u00e9 collo\u00efdale<\/strong>: 40D<\/li>\n\n\n\n<li><strong>R\u00e9sistance \u00e0 la traction et au cisaillement<\/strong>:11,34 MPa (feuille d&#039;aluminium sur feuille d&#039;aluminium)<\/li>\n\n\n\n<li><strong>Force de liaison<\/strong>: 283,5 kPa\/D par unit\u00e9 de duret\u00e9<\/li>\n<\/ul>\n\n\n\n<p>L\u2019exp\u00e9rience de d\u00e9veloppement est-elle termin\u00e9e ? Pas tout \u00e0 fait. Les auteurs ont not\u00e9 que plusieurs \u00ab probl\u00e8mes \u00bb demeurent, soulignant les difficult\u00e9s persistantes dans le d\u00e9veloppement des formulations d\u2019adh\u00e9sifs. Ces d\u00e9fis sont souvent \u00e0 l\u2019origine d\u2019innovations importantes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u2019importance d\u2019\u00e9valuer les hypoth\u00e8ses erron\u00e9es suivantes<\/h3>\n\n\n\n<p><strong>Interaction entre les principales cat\u00e9gories<\/strong>:Le processus d\u2019optimisation n\u2019a pas pris en compte les interactions entre les diff\u00e9rentes cat\u00e9gories de mati\u00e8res premi\u00e8res, qui peuvent affecter consid\u00e9rablement les r\u00e9ponses aux tests.<\/p>\n\n\n\n<p><strong>Propri\u00e9t\u00e9s physiques des mati\u00e8res premi\u00e8res<\/strong>:Des facteurs tels que la puret\u00e9, la teneur en humidit\u00e9 et l\u2019uniformit\u00e9 des mati\u00e8res premi\u00e8res ont \u00e9t\u00e9 n\u00e9glig\u00e9s dans l\u2019analyse, ce qui a potentiellement fauss\u00e9 les r\u00e9sultats.<\/p>\n\n\n\n<p><strong>Ind\u00e9pendance des effets des mati\u00e8res premi\u00e8res<\/strong>:L\u2019hypoth\u00e8se selon laquelle le type et la proportion de mati\u00e8res premi\u00e8res affectent les r\u00e9ponses aux tests de mani\u00e8re ind\u00e9pendante est erron\u00e9e, car ces facteurs s\u2019influencent souvent les uns les autres.<\/p>\n\n\n\n<p>Compte tenu de ces incertitudes en mati\u00e8re de formulation, il est essentiel de trouver des moyens d\u2019att\u00e9nuer leur impact. Une strat\u00e9gie efficace consiste \u00e0 utiliser des facteurs relativement contr\u00f4lables pour compenser ces incertitudes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Utilisation des charges dans les adh\u00e9sifs<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">(1) S\u00e9lection de charges courantes<\/h3>\n\n\n\n<p>Le choix de charges largement utilis\u00e9es, telles que le carbonate de calcium et la silice, peut am\u00e9liorer les performances adh\u00e9sives. Les charges min\u00e9rales offrent non seulement une solution \u00e9conomique, mais offrent \u00e9galement une gamme vari\u00e9e de fonctions. Elles sont un \u00e9l\u00e9ment essentiel de la formulation des adh\u00e9sifs depuis des ann\u00e9es, permettant un r\u00e9glage pr\u00e9cis des propri\u00e9t\u00e9s. Tang Long et al. ont soulign\u00e9 que dans leur \u00e9tude, la gamme de r\u00e9sine de matrice et l&#039;agent d&#039;allongement de cha\u00eene\/de r\u00e9ticulation avaient l&#039;effet le plus important sur les r\u00e9sultats des tests. L&#039;additif rh\u00e9ologique avait une influence secondaire, tandis que les charges avaient un impact significatif, positionn\u00e9 entre les effets primaires et secondaires.<\/p>\n\n\n\n<p>Lors du choix des charges, la flexibilit\u00e9 est consid\u00e9rable et les charges traditionnelles constituent souvent le meilleur choix. Leur utilisation de longue date dans la production leur conf\u00e8re une meilleure rentabilit\u00e9 et une meilleure stabilit\u00e9. Par exemple, le carbonate de calcium, connu pour sa finesse, son uniformit\u00e9 et sa grande blancheur, est largement utilis\u00e9 comme charge dans les adh\u00e9sifs.<\/p>\n\n\n\n<p>Cui Lidong et al. ont men\u00e9 des recherches en utilisant du carbonate de calcium de 850 mesh comme charge dans les adh\u00e9sifs en \u00e9mulsion pour le bois. Ils ont \u00e9tudi\u00e9 les effets de diff\u00e9rents rapports d&#039;addition sur les performances de l&#039;adh\u00e9sif gr\u00e2ce \u00e0 une m\u00e9thode exp\u00e9rimentale \u00e0 facteur unique. Les r\u00e9sultats ont indiqu\u00e9 que :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Viscosit\u00e9 et duret\u00e9<\/strong>:Augment\u00e9 avec des rapports de carbonate de calcium plus \u00e9lev\u00e9s.<\/li>\n\n\n\n<li><strong>Force de liaison<\/strong>:Initialement augment\u00e9, puis diminu\u00e9 \u00e0 des ratios plus \u00e9lev\u00e9s.<\/li>\n\n\n\n<li><strong>Stabilit\u00e9<\/strong>:D\u00e9t\u00e9rior\u00e9 avec une teneur en charge accrue.<\/li>\n<\/ul>\n\n\n\n<p><strong>L&#039;impact des charges sur les performances adh\u00e9sives<\/strong><\/p>\n\n\n\n<p><strong>Relation entre le taux d&#039;addition de carbonate de calcium et la duret\u00e9 Shore A<\/strong><\/p>\n\n\n\n<p>Zhou Xiao et al. ont \u00e9tudi\u00e9 l&#039;influence de la poudre de quartz comme charge dans les adh\u00e9sifs polyur\u00e9thane monocomposants. Leurs r\u00e9sultats indiquent que la poudre de quartz pr\u00e9sente une bonne compatibilit\u00e9 avec les syst\u00e8mes polyur\u00e9thane, am\u00e9liorant consid\u00e9rablement les propri\u00e9t\u00e9s telles que la r\u00e9sistance \u00e0 la traction, l&#039;allongement \u00e0 la rupture et la r\u00e9sistance \u00e0 la d\u00e9chirure des produits adh\u00e9sifs obtenus.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>(2) Exploration des charges avanc\u00e9es : carbure de silicium et alumine<\/strong><\/h3>\n\n\n\n<p>Li Zhaoyuan et al. ont utilis\u00e9 du carbure de silicium cubique nano (\u03b2-SiC) comme charge pour d\u00e9velopper des adh\u00e9sifs inorganiques modifi\u00e9s. Leurs exp\u00e9riences ont r\u00e9v\u00e9l\u00e9 qu&#039;avec une teneur en charge de 40%, l&#039;adh\u00e9sif atteignait des performances remarquables :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>R\u00e9sistance \u00e0 la traction et au cisaillement<\/strong>: 13,5 MPa<\/li>\n\n\n\n<li><strong>Nombre d&#039;it\u00e9rations de la dur\u00e9e de vie en fatigue<\/strong>: 67 cycles<\/li>\n\n\n\n<li><strong>R\u00e9sistance au pelage<\/strong>: 46,7 N\/mm\u00b2<\/li>\n<\/ul>\n\n\n\n<p>Ces r\u00e9sultats soulignent que la modification des nanoparticules peut am\u00e9liorer consid\u00e9rablement les performances de liaison des adh\u00e9sifs inorganiques, offrant une fiabilit\u00e9 sup\u00e9rieure dans diverses applications.<\/p>\n\n\n\n<p>Chen Zeming et al. ont \u00e9tudi\u00e9 les effets de diverses charges inorganiques, notamment la poudre de silice, l&#039;Al\u2082O\u2083, la mullite, le nitrure de bore, la poudre de talc et le mica, sur des adh\u00e9sifs \u00e0 base de r\u00e9sine \u00e9poxy modifi\u00e9e. Leur \u00e9tude a \u00e9valu\u00e9 l&#039;influence de diff\u00e9rents types et dosages de charges sur la force de liaison et l&#039;interface de liaison. Les principales conclusions sont les suivantes :<\/p>\n\n\n\n<p><strong>Tendances en mati\u00e8re de force de liaison<\/strong>:La force de liaison augmentait initialement avec le dosage de la charge, puis diminuait \u00e0 des niveaux plus \u00e9lev\u00e9s.<\/p>\n\n\n\n<p><strong>Performances de remplissage optimales<\/strong>:Parmi les charges test\u00e9es, 15 parties d&#039;Al\u2082O\u2083 ont donn\u00e9 les meilleurs r\u00e9sultats, atteignant des valeurs de r\u00e9sistance au cisaillement et au pelage de 22,42 MPa et 12,84 N\/cm, respectivement.<\/p>\n\n\n\n<p>L&#039;ajout de charge Al\u2082O\u2083 facilite la formation de liaisons chimiques, telles que C-Al et Al-OC, qui r\u00e9duisent la force de coh\u00e9sion de la r\u00e9sine \u00e9poxy modifi\u00e9e. Cette am\u00e9lioration augmente la force de liaison \u00e0 l&#039;interface adh\u00e9sif-alliage d&#039;aluminium, am\u00e9liorant ainsi \u00e0 la fois la r\u00e9sistance au pelage et au cisaillement.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(3) \u00c9tude syst\u00e9matique des charges dans les adh\u00e9sifs<\/h3>\n\n\n\n<p>Les adh\u00e9sifs structuraux acryliques \u00e0 deux composants sont largement utilis\u00e9s pour coller des mat\u00e9riaux m\u00e9talliques et non m\u00e9talliques dans diverses industries, notamment l&#039;a\u00e9rospatiale, l&#039;automobile, la construction et l&#039;\u00e9lectronique. Bien que les charges soient insolubles dans les syst\u00e8mes adh\u00e9sifs en raison de leurs propri\u00e9t\u00e9s inh\u00e9rentes, des modifications peuvent am\u00e9liorer l&#039;interaction entre les charges et les adh\u00e9sifs. Cette interaction am\u00e9liore les propri\u00e9t\u00e9s m\u00e9caniques des adh\u00e9sifs, augmente la viscosit\u00e9 et favorise une meilleure adh\u00e9rence aux substrats.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>R\u00e9gulation des propri\u00e9t\u00e9s m\u00e9caniques<\/strong><\/h4>\n\n\n\n<p>Les propri\u00e9t\u00e9s m\u00e9caniques sont essentielles pour la performance des structures acryliques <a href=\"https:\/\/en.wikipedia.org\/wiki\/Adhesive\">adh\u00e9sifs<\/a> dans diff\u00e9rentes applications. Les chercheurs ont propos\u00e9 plusieurs strat\u00e9gies pour am\u00e9liorer ces propri\u00e9t\u00e9s, notamment l&#039;incorporation de compos\u00e9s thermoplastiques et de charges inorganiques.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>R\u00e9gulation de la conductivit\u00e9 thermique<\/strong><\/h4>\n\n\n\n<p>L&#039;incorporation de charges inorganiques appropri\u00e9es ayant des propri\u00e9t\u00e9s d&#039;isolation \u00e9lectrique peut am\u00e9liorer consid\u00e9rablement la conductivit\u00e9 thermique des syst\u00e8mes adh\u00e9sifs acryliques. Les charges appropri\u00e9es comprennent :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hydroxyde d&#039;aluminium<\/strong><\/li>\n\n\n\n<li><strong>L&#039;hydroxyde de magn\u00e9sium<\/strong><\/li>\n\n\n\n<li><strong>Oxyde d&#039;aluminium<\/strong><\/li>\n\n\n\n<li><strong>Oxyde de magn\u00e9sium<\/strong><\/li>\n\n\n\n<li><strong>Oxyde de zinc<\/strong><\/li>\n\n\n\n<li><strong>Dioxyde de silicium<\/strong><\/li>\n\n\n\n<li><strong>Dioxyde de titane<\/strong><\/li>\n\n\n\n<li><strong>Silicate de calcium<\/strong><\/li>\n\n\n\n<li><strong>Silicate d&#039;aluminium<\/strong><\/li>\n\n\n\n<li><strong>Carbonate de calcium<\/strong><\/li>\n\n\n\n<li><strong>Nitrure de silicium<\/strong><\/li>\n\n\n\n<li><strong>Carbure de silicium<\/strong><\/li>\n\n\n\n<li><strong>Borate d&#039;aluminium<\/strong><\/li>\n<\/ul>\n\n\n\n<p>De plus, les moustaches en carbure de silicium, en oxyde d&#039;aluminium ou en borate d&#039;aluminium peuvent am\u00e9liorer la conductivit\u00e9 thermique et la r\u00e9sistance au feu de l&#039;adh\u00e9sif tout en conservant ses propri\u00e9t\u00e9s m\u00e9caniques et de durcissement.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>R\u00e9gulation de la r\u00e9sistance \u00e0 l&#039;humidit\u00e9 et \u00e0 la chaleur<\/strong><\/h4>\n\n\n\n<p>Liu Chengliang et al. ont pr\u00e9sent\u00e9 dans leur brevet une m\u00e9thode de pr\u00e9paration d&#039;adh\u00e9sifs structuraux acryliques hautement r\u00e9sistants aux intemp\u00e9ries. En ajoutant 0 \u00e0 30 parties de charges inorganiques, telles que de la silice fum\u00e9e, du carbonate de calcium et de la nano-alumine, aux composants A et B, l&#039;adh\u00e9sif a d\u00e9montr\u00e9 des performances impressionnantes :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>R\u00e9sistance \u00e0 la traction et au cisaillement \u00e0 temp\u00e9rature ambiante<\/strong>: 9,36 MPa (acier inoxydable\/PMMA) et 10,35 MPa (magn\u00e9sium\/PMMA).<\/li>\n\n\n\n<li><strong>R\u00e9sistance \u00e0 la traction et au cisaillement apr\u00e8s vieillissement<\/strong>:Valeurs retenues de 9,83 MPa et 9,64 MPa apr\u00e8s 2 semaines \u00e0 85\u00b0C et 85% d&#039;humidit\u00e9, avec des taux de r\u00e9tention de 105% et 93%, respectivement.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>R\u00e9gulation de la r\u00e9sistance \u00e0 la corrosion<\/strong><\/h4>\n\n\n\n<p>L&#039;utilisation d&#039;adh\u00e9sifs structuraux acryliques peut r\u00e9duire ou \u00e9liminer le besoin d&#039;op\u00e9rations de finition co\u00fbteuses telles que le rivetage et le soudage, ce qui donne un aspect plus esth\u00e9tique avec moins de trous ou de points de contrainte sujets \u00e0 la corrosion. Diff\u00e9rents m\u00e9taux peuvent \u00eatre coll\u00e9s avec un risque moindre de corrosion galvanique. L&#039;am\u00e9lioration de la r\u00e9sistance \u00e0 la corrosion peut \u00eatre obtenue en ajoutant des m\u00e9langes de molybdates m\u00e9talliques (par exemple, le molybdate de zinc, le molybdate de calcium, le molybdate de baryum ou le molybdate de strontium) et des charges inertes telles que le phosphate de zinc, le phosphate de calcium et le phosphate de magn\u00e9sium.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>R\u00e9glementation des autres propri\u00e9t\u00e9s<\/strong><\/h4>\n\n\n\n<p>En plus d&#039;am\u00e9liorer les propri\u00e9t\u00e9s m\u00e9caniques et thermiques, certaines charges inorganiques jouent un r\u00f4le essentiel en tant qu&#039;agents thixotropes, \u00e9paississants et agents de renforcement. Elles peuvent modifier efficacement diverses caract\u00e9ristiques des syst\u00e8mes adh\u00e9sifs structuraux acryliques \u00e0 deux composants, notamment la densit\u00e9, la viscosit\u00e9 et la thixotropie. Liu Suyu et al. ont d\u00e9velopp\u00e9 une m\u00e9thode de cr\u00e9ation d&#039;un adh\u00e9sif acrylique sp\u00e9cialement con\u00e7u pour le collage de plinthes automobiles. Dans cette formulation, le carbonate de calcium a \u00e9t\u00e9 utilis\u00e9 comme charge principale. L&#039;inclusion de carbonate de calcium a conduit \u00e0 plusieurs r\u00e9sultats b\u00e9n\u00e9fiques :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Thixotropie r\u00e9duite<\/strong>:L&#039;adh\u00e9sif est devenu plus facile \u00e0 appliquer et \u00e0 gratter.<\/li>\n\n\n\n<li><strong>Temp\u00e9rature exothermique inf\u00e9rieure<\/strong>:La temp\u00e9rature exothermique a \u00e9t\u00e9 r\u00e9duite de 115\u00b0C \u00e0 moins de 85\u00b0C, favorisant un durcissement plus stable.<\/li>\n\n\n\n<li><strong>R\u00e9tr\u00e9cissement de durcissement minimis\u00e9<\/strong>:Le retrait de durcissement a \u00e9t\u00e9 maintenu en dessous de 1%, r\u00e9duisant ainsi efficacement le temps de construction.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<p>Face aux d\u00e9fis li\u00e9s \u00e0 la formulation d&#039;adh\u00e9sifs, pensez \u00e0 utiliser des charges inorganiques. Leur polyvalence peut apporter des solutions efficaces \u00e0 divers probl\u00e8mes. <\/p>","protected":false},"excerpt":{"rendered":"<p>D\u00e9velopper des formules adh\u00e9sives peut \u00eatre un v\u00e9ritable d\u00e9fi. Le principal probl\u00e8me r\u00e9side dans la n\u00e9cessit\u00e9 de formules cibl\u00e9es. De nombreuses mati\u00e8res premi\u00e8res adapt\u00e9es doivent \u00eatre combin\u00e9es pour obtenir les propri\u00e9t\u00e9s souhait\u00e9es, ce qui n\u00e9cessite [\u2026]<\/p>","protected":false},"author":2,"featured_media":14805,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[42],"tags":[],"class_list":["post-14804","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Can\u2019t figure out the adhesive formula? 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