Abstract:Kana iwe uchida kugadzira solvent-free composite process uchishandisa zvakatsiga, zvakakosha kuti usarudze chinomisikidza chinosanganiswa nemazvo.Chinyorwa ichi chinosuma nzira yekusarudza yakanyatsokodzera-isina-isina komputa adhesive yecomposite substrates uye zvimiro.
Nekukura uye kukurumbira kwe tekinoroji-isina composite tekinoroji, akawanda uye akaonda firimu substrates anogona kushandiswa kusanganisa-isina composite.Kuti ushandise tekinoroji-isina composite tekinoroji zvakatsiga, zvakakosha kuti usarudze iyo chaiyo inosanganisa inonamatira.Pazasi, zvichibva pane zvakaitika kumunyori, isu tichasuma nzira yekusarudza yakakodzera solvent-isina adhesive.
Parizvino, lamination yakaoma uye solvent-isina lamination inogarisana.Naizvozvo, kudzikamisa kushandiswa kwe-solvent-isina lamination tekinoroji, poindi yekutanga ndeyekunzwisisa zvizere chimiro chechigadzirwa chefekitori yekurongedza, kurongedza chimiro chechigadzirwa zvakadzama, kurongedza zvimiro zvechigadzirwa zvinogona kushandiswa kunyungudika-isina lamination, uye. zvino sarudza iyo yakakodzera solvent-isina adhesive.Saka, ungasarudza sei zvinonamidzira-isina-solvent?Batanidza chimwe nechimwe kubva pazvinhu zvinotevera.
- simba rekunamatira
Nekuda kwekuoma uye kusiyanisa kwezvinhu zvekurongedza, kurapwa kwepamusoro kwe substrates zvakare kunosiyana zvakanyanya.Common flexible packaging materials anewo maitiro akasiyana, akadai se PE, BOPP, PET, PA, CPP, VMPET, VMCPP, etc. Kunewo zvimwe zvinhu zvisingawanzo shandiswa mukuputira, zvakadai sePS, PVC, EVA, PT. .
- Tembiricha kuramba
Kuramba tembiricha kunosanganisira zvinhu zviviri.Imwe ndeyekudzivirira kwekushisa kwepamusoro.Parizvino, chikafu chizhinji chinoda kubatwa nepamusoro-tembiricha sterilized, zvimwe zvakasvibiswa pa80-100.° C, nepo vamwe vachiitwa sterilized pa100-135° C. Nguva yekuvharisa inosiyana, imwe ichida maminitsi gumi kusvika makumi maviri uye imwe ichida maminitsi makumi mana.Vamwe vachiri sterilized ne ethylene oxide.Zvishandiso zvakasiyana zvine nzira dzakasiyana dzesterilization.Asi iyo yakasarudzwa-isina-adhesive inonamatira inofanirwa kuzadzisa izvi zvakanyanya tembiricha zvinodiwa.Iyo bhegi haigone delaminate kana kukanganisa mushure mekupisa kwakanyanya.Uye zvakare, iyo zvinhu zvakaporeswa neadhesive-isina adhesive inofanirwa kukwanisa kumira kutonhora kwakanyanya kwe200.° C kana kunyange 350° C pakarepo.Kana izvi zvisingakwanisi kuwanikwa, bhegi kupisa chisimbiso kunowanzoita delamination.
Yechipiri ndeyekudzika kwekushisa kwekudzivirira, iyo inozivikanwawo sekudzivirira kwechando.Mazhinji ekurongedza akapfava ane chikafu chakaomeswa nechando, icho chinoda zvinonamira-zvisina solvent kuti zvikwanise kutsungirira tembiricha yakaderera.Pakutonhora kwakadzika, zvinhu zvakasimbiswa nemanamira pachazvo zvinowanzoita kuoma, brittleness, delamination, uye kutsemuka.Kana izvi zviitiko zvikaitika, zvinoratidza kuti zvisungo zvakasarudzwa hazvigoni kumira kutonhora kwakadzika.
Naizvozvo, pakusarudza zvinonamira-zvisina solvent, kunzwisisa kwakadzama uye kuyedzwa kwekupokana kwekushisa kunodiwa.
3.Health uye Kuchengetedza
Iwo anonamira-asina solvent anoshandiswa mukudya uye kurongedza zvinodhaka anofanirwa kuve nehutsanana hwakanaka uye kuchengetedza kuita.Mitemo yakaoma iripo munyika dzakasiyana pasi rose.Iyo US FDA inoisa mumapoka anonamira anoshandiswa mumisanganiswa yekurongedza zvinhu zvechikafu nemishonga seyekuwedzera, inodzikamisa zvigadzirwa zvinoshandiswa kugadzira zvinonamira uye kurambidza kushandiswa kwezvinhu zvisina kubatanidzwa mune yakabvumidzwa runyorwa rwezvigadzirwa,Uye zvinhu zvinoumbwa zvinogadzirwa neichi. anonamira akaiswa mumapoka uye akaganhurirwa mumhando yetembiricha yekushanda, kusanganisira tembiricha yekamuri, kushandiswa kwekuuraya utachiona, 122 ° C kupfungaira kushandiswa kwe sterilization, kana 135 ° C uye pamusoro-yepamusoro-tembiricha yekupisa sterilization kushandiswa.Panguva imwecheteyo, zvinhu zvekuongorora, nzira dzekuyedza, uye tekinoroji zviratidzo zvekutakura zvinhu zvinogadzirwa zvakare.Panewo zvigadziro zvakakodzera uye zvirambidzo muChina chiyero cheGB9685. Naizvozvo, zvinonamatira-zvisina solvent zvinoshandiswa kune zvekunze zvekutengesa kunze zvigadzirwa zvinofanirwa kuenderana nemirairo yemuno.
4.Kusangana nezvinodiwa zvezvikumbiro zvakakosha
Iko kushandiswa kwakapararira kweasina solvent-isina macomposites mumunda wekuchinjika kurongedza kwakasimudzira kuwedzera kwavo kuminda ine hukama.Parizvino, kune nzvimbo dzakakosha uko dzakashandiswa:
4.1 Solvent yemahara composite PET pepa kurongedza
Mapepa ePET anonyanya kugadzirwa nezvinhu zvePET zvine ukobvu hwe0.4mm kana kudarika.Nekuda kwekukora uye kuomarara kwechinhu ichi, zvinodikanwa kuti usarudze-isina-solvent adhesive ine yakakwirira yekutanga adhesion uye viscosity kuti igadzire chinhu ichi.Chigadzirwa chakapedzwa chakagadzirwa nemhando iyi yezvinhu zvinosanganiswa zvinowanzoda kugadzirwa mumhando dzakasiyana siyana. mamwe acho anoda kudhindwa, saka zvinodikanwa zvekusimba kwepeel zvakare zvakati wandei.WD8966 inogadzirwa neKangda New Materials ine yakakwirira yekutanga kunamatira uye kutsika kuramba, uye yakashandiswa zvinobudirira muPET sheet composite.
4.2 Solvent yemahara inosanganiswa isina-yakarukwa jira rekurongedza
Machira asina kurukwa anoshandiswa zvakanyanya uye ane mhando dzakasiyana.Kushandiswa kwemachira asina kurukwa munzvimbo dzisina kunyungudutsa zvakanyanya zvinoenderana nekukora kwejira risiri rakarukwa uye kuwanda kwemafiber.Zvichienderana nekutaura, denser jira risiri rakarukwa, rinova nani iyo inonyungudutsa-isina composite.Parizvino, single component polyurethane hot melt adhesive inonyanya kushandiswa kune solvent-isina composite machira asiri akarukwa.
Nguva yekutumira: Zvita-12-2023