Okunamathelayo okuncibilika okushisayo (ama-HMA) kanye nezinamatheliso ezizwela ukucindezela kwe-hot melt (HMPSAs) sekusetshenziswe kabanzi ekukhiqizeni iminyaka engaphezu kwengu-40. Cishe yonke imboni ehlanganisa ukupakisha, ukuhlanganisa izincwadi, ukusebenza ngokhuni, inhlanzeko, ukwakhiwa, ezezimoto, izinto zikagesi, ukwenza izicathulo, izindwangu zokuthungatha izindwangu, ukuhlanganiswa komkhiqizo, amateyipu namalebula kusebenzisa izinamatheliso ezincibilikayo ezishisayo kakhulu. Yiziphi lezi zinto?

I-HMA ingcina eqinile engu-100% esetshenziswa esimweni esincibilikisiwe ukuze kuzuzwe ukugeleza nokumanzisa. I-HMA incike ekupholiseni kokuqinile ukuze inikeze ibhondi esebenzisekayo. Ama-HMA ngokuvamile ahlala njengama-thermoplastic ngemva kokufakwa.

Ukuncibilika okushisayo okuzwelayo kwe-HMPSA yi-HMA egcina amandla okwenza ibhondi esebenzisekayo ngaphansi kwengcindezi yokukhanya ekamelweni lokushisa. Izinamatheliso ezizwela ukucindezela ziqinile kakhulu futhi zinesikhathi esivulekile esingenamkhawulo - okusho ukuthi zingabophela kwenye i-substrate nganoma yisiphi isikhathi. Ama-HMPSA ajwayele ukusetshenziselwa ukwenza amateyipu namalebula azwela ukucindezela.

I-HMA ingahlukaniswa ngemindeni emibili emikhulu: ama-HMA angakhiwe futhi akhiwe. Ama-HMA angakhiwe ahlanganiswa ngamabomu njengezinamathelisi ezisebenzisekayo ngaphandle kokulungiswa okwengeziwe ngezinye izinto ezinjengama-tackifiers. Ama-HMA ajwayelekile angakhiwanga yi-Poly-Esters (PET), i-Poly-Amides (PA), i-Poly-Urethanes (PU), ne-Poly-Olefins. Banikeza “i-hot tack” encomekayo noma ikhono lezinamatheliso ezincibilikayo ezishisayo zokubamba ama-substrates ndawonye ngaphambi kokuqiniswa noma ukusetha noma amandla okubopha ngenkathi kushisa futhi kuboshwe emazingeni okushisa aphakeme.

Ama-HMA akhiwe akhiwa ama-thermoplastic elastomer, ama-tackifiers nezinye izithako. Ngokungafani nalawo ma-HMA angakhiwenga, lawa ma-elastomer ayisisekelo e-thermoplastic ewodwa awaqinile kunoma yiliphi igumbi lokushisa noma izinga lokushisa eliphakeme. Ama-elastomer amathathu ayisisekelo asetshenziswa kakhulu e-thermoplastic ama-Styrenic Block Copolymers (SBCs), i-Ethylene Vinyl-Acetates (EVAs), kanye ne-Amorphous Poly-Olefins (APOs). Lawa ma-elastomer e-thermoplastic aguqulwa yizinhlobo ezahlukahlukene zama-tackifiers (ama-resin emvelo nawokwenziwa) akhiqiza ukusebenza okuhlukahlukene kokunamathela ngokuya ngezidingo ezithile zemakethe.

Ama-HMA amaningi ngokuvamile asekelwe kuma-EVA. Le mikhiqizo ibonisa isikhathi esifushane sokuvula (imvamisa esingaphansi kwamasekhondi angu-10) kanye nesivinini sokusetha okusheshayo. I-tack encane kuphela etholakala endaweni enamathelayo ekamelweni lokushisa. Ama-HMPSA asekelwe ngokuyinhloko kuma-SBC. Ziqinile unomphela ekamelweni lokushisa futhi zinikeza amandla amahle okubopha ngaphansi kokucindezela komunwe olula. Ama-HMA asekelwe ku-APO anikeza isikhathi eside kakhulu sokuvula ngemva kokufakwa nokupholiswa kusukela esigabeni sawo sokuncibilika. Nokho; azivuleki unomphela futhi zizolahlekelwa i-surface tack uma sezimiswe ngokuphelele. Lesi sici esiyingqayizivele siwusizo kakhulu kulezo zinqubo zokuhlanganisa ezidinga isikhathi eside esivulekile kodwa i-tack yendawo ephansi ngemva kokubopha. I-tack yendawo eyinsalela ephansi izogwema ukungcoliswa kwesikhathi esizayo emaphethelweni alezo zindawo zokubopha.

Ithini i-HMA kanye/noma i-HMPSA ephelele? Eqinisweni, awukho umkhiqizo onjalo ophelele. Wonke ama-adhesives kufanele aklanywe noma akhiwe ngokuvumelana nezidingo zangempela. Siyikhetha kanjani i-HMA noma i-HMPSA efanele yezidingo zangempela? Ngaphambi kokuthi umuntu akhethe umkhiqizo osezingeni eliphezulu wohlelo oluthile, kokubili ukusebenza kokunamathela kokusetshenziswa kokugcina kanye namasu okusebenza kufanele kuchazwe ngokucacile.

I-DeepMaterial inganikeza insizakalo eyenziwe ngokwezifiso yokuncibilika okushisayo. Izinhlobo ezisebenzayo zokunamathelisa okuncibilika okushisayo zingabopha ama-substrates ahlukahlukene, kuhlanganise namapulasitiki okunzima ukuwahlanganisa. Lezi zinamathiselo zingakwazi ukuphatha zonke izigaba zezinhlelo zempilo eziqinile zokuhlanganisa. Ama-adhesive ancibilikayo ashisayo yiyona ndlela engcono kakhulu yokukhetha ukucubungula ngesivinini esikhulu, ukuhlukahluka okubophayo, ukugcwaliswa kwegebe elikhulu, amandla okuqala asheshayo kanye nokuncipha okuncane.

Izinhlobo ezisebenzayo ze-DeepMaterial zokunamathiswa okuncibilika okushisayo zinezinzuzo eziningi: isikhathi esivulekile sisukela kumasekhondi kuya emaminithini, asidingi ukulungiswa, ukuqina kwesikhathi eside nokumelana nomswakama okuhle kakhulu, ukumelana namakhemikhali, ukumelana nowoyela kanye nokumelana nezinga lokushisa. Izinhlobo ezisebenzayo ze-DeepMaterial zemikhiqizo yokunamathisela encibilikayo eshisayo ayinancibiliki.