Paub meej: Yog tias koj xav ua cov txheej txheem tsis muaj kuab tshuaj tsis tu ncua, nws yog ib qho tseem ceeb uas yuav tau xaiv cov nplaum nplaum kom raug.
Nrog rau kev loj hlob thiab nrov ntawm cov tshuab tsis muaj cov kuab tshuaj sib xyaw, ntau thiab ntau cov yeeb yaj kiab nyias tuaj yeem siv rau cov kuab tshuaj tsis muaj tshuaj lom.Txhawm rau siv cov txheej txheem sib xyaw tsis muaj kuab lom ruaj khov, nws yog ib qho tseem ceeb uas yuav tau xaiv cov nplaum nplaum kom raug.Hauv qab no, raws li tus sau qhov kev paub dhau los, peb yuav qhia txog yuav ua li cas xaiv cov kua nplaum uas tsim nyog.
Tam sim no, lamination qhuav thiab hnyav-dawb lamination coexist.Yog li ntawd, txhawm rau txhim kho kev siv thev naus laus zis tsis muaj lamination, thawj lub ntsiab lus yog kom nkag siab tag nrho cov khoom tsim ntawm lub Hoobkas ntim, faib cov khoom lag luam kom ntxaws, faib cov khoom tsim uas tuaj yeem siv rau cov khoom hnyav-dawb lamination, thiab tom qab ntawd xaiv qhov tsim nyog cov kuab tshuaj tsis muaj nplaum.Yog li, yuav ua li cas xaiv cov kua nplaum uas tsis muaj kuab lom?Ua ke ib los ntawm ib qho los ntawm cov hauv qab no.
- nplaum lub zog
Vim lub complexity thiab ntau haiv neeg ntawm ntim cov ntaub ntawv, kev kho deg ntawm substrates kuj txawv heev.Cov ntaub ntawv ntim khoom siv tau yooj yim kuj muaj cov yam ntxwv sib txawv, xws li PE, BOPP, PET, PA, CPP, VMPET, VMCPP, thiab lwm yam. Muaj qee cov ntaub ntawv uas tsis yog siv rau hauv kev ntim khoom yooj yim, xws li PS, PVC, EVA, PT. , PC, ntawv, thiab lwm yam. Yog li ntawd, cov kua nplaum-dawb nplaum xaiv los ntawm cov tuam txhab lag luam yuav tsum muaj adhesion zoo rau feem ntau cov khoom ntim tau yooj yim.
- Kub tiv taus
Kub tiv thaiv muaj ob yam.Ib qho yog kub tsis kam.Tam sim no, ntau cov zaub mov yuav tsum tau ua kom tsis muaj qhov kub thiab txias, qee qhov yog sterilized ntawm 80-100.° C, thaum lwm tus yog sterilized ntawm 100-135° C. Lub sijhawm ua kom tsis muaj menyuam txawv, qee qhov xav tau 10-20 feeb thiab lwm tus xav tau 40 feeb.Qee qhov tseem sterilized nrog ethylene oxide.Cov khoom sib txawv muaj ntau txoj kev ua kom tsis muaj menyuam.Tab sis xaiv cov kua nplaum tsis muaj nplaum yuav tsum ua kom tau raws li qhov xav tau ntawm qhov kub thiab txias.Lub hnab tsis tuaj yeem delaminate lossis deform tom qab kub kub.Tsis tas li ntawd, cov khoom kho nrog hnyav-dawb nplaum yuav tsum muaj peev xwm tiv taus qhov kub thiab txias ntawm 200.° C los yog 350° C tam sim ntawd.Yog tias qhov no tsis tuaj yeem ua tiav, lub hnab ntim cua sov yog qhov ua rau delamination.
Qhov thib ob yog qhov kub thiab txias tsis kam, uas tseem hu ua khov tsis kam.Ntau cov khoom ntim mos muaj cov khoom noj khov, uas yuav tsum muaj cov nplaum tsis muaj kuab lom kom muaj peev xwm tiv taus qhov kub thiab txias.Ntawm qhov kub thiab txias, cov ntaub ntawv solidified los ntawm cov nplaum lawv tus kheej yog qhov nyuaj rau hardening, brittleness, delamination, thiab tawg.Yog tias cov xwm txheej no tshwm sim, nws qhia tau hais tias cov nplaum uas tau xaiv tsis tuaj yeem tiv taus qhov kub thiab txias.
Yog li ntawd, thaum xaiv cov kua nplaum uas tsis muaj kuab lom, yuav tsum muaj kev nkag siab ntxaws thiab ntsuas qhov ntsuas kub tsis kam.
3. Kev noj qab haus huv thiab kev nyab xeeb
Cov kua nplaum uas tsis muaj kuab tshuaj siv hauv cov khoom noj thiab tshuaj ntim tshuaj yuav tsum muaj kev nyiam huv thiab kev nyab xeeb.Cov kev cai nruj yog nyob rau hauv ntau lub teb chaws thoob ntiaj teb.US FDA categorizes adhesives siv nyob rau hauv composite ntim cov ntaub ntawv rau cov khoom noj thiab tshuaj raws li additives, txwv cov raw khoom siv los tsim cov nplaum thiab txwv tsis pub siv cov khoom uas tsis suav nrog hauv daim ntawv tso cai ntawm raw cov ntaub ntawv, Thiab cov ntaub ntawv sib xyaw tsim nrog qhov no Adhesive yog cais thiab txwv nyob rau hauv lawv daim ntawv thov kub ntau yam, nrog rau kev siv chav tsev kub, boiling tshuaj tua kab mob, 122 ° C steaming sterilization siv, los yog 135 ° C thiab saum toj no high-temperature steaming sterilization siv.Nyob rau tib lub sijhawm, cov khoom tshuaj ntsuam xyuas, cov txheej txheem kuaj, thiab cov ntsuas kev ntsuas rau cov khoom ntim kuj raug tsim.Kuj tseem muaj cov kev cai thiab kev txwv hauv Tuam Tshoj tus qauv GB9685.Yog li ntawd, cov kua nplaum tsis muaj kuab lom siv rau cov khoom lag luam tawm txawv teb chaws yuav tsum ua raws li cov cai hauv zos.
4.Ua raws li qhov xav tau ntawm cov ntawv thov tshwj xeeb
Kev siv dav dav ntawm cov kuab tshuaj tsis muaj kuab lom nyob rau hauv thaj chaw ntawm kev ntim khoom yooj yim tau txhawb nqa lawv txoj kev txuas ntxiv mus rau lwm thaj chaw.Tam sim no, muaj cov chaw tshwj xeeb uas lawv tau thov:
4.1 Solvent free composite PET sheet ntim
Cov ntawv PET feem ntau yog ua los ntawm cov ntaub ntawv PET nrog lub thickness ntawm 0.4mm lossis ntau dua.Vim lub thickness thiab rigidity ntawm cov khoom no, nws yog ib qho tsim nyog yuav tau xaiv cov kua nplaum uas tsis muaj kuab lom nrog lub siab pib adhesion thiab viscosity los ua cov khoom no.Cov khoom tiav ua los ntawm cov khoom sib xyaw no feem ntau yuav tsum tau ua rau ntau yam duab, qee qhov yuav tsum tau stamping, yog li cov kev xav tau rau tev lub zog kuj tseem siab.WD8966 tsim los ntawm Kangda Cov Khoom Siv Tshiab muaj qhov pib ua haujlwm siab thiab stamping tsis kam, thiab tau ua tiav hauv PET daim ntawv sib xyaw.
4.2 Solvent free composite non-woven fabric ntim
Non-woven fabrics yog dav siv thiab muaj ntau hom.Daim ntawv thov ntawm cov ntaub tsis-woven nyob rau hauv qhov hnyav-dawb ib puag ncig feem ntau yog nyob ntawm qhov tuab ntawm cov ntaub tsis-woven thiab qhov ntom ntawm cov fibers.Raws li kev hais lus, qhov denser cov ntaub tsis-woven, qhov zoo dua cov kuab tshuaj tsis muaj kev sib xyaw.Tam sim no, ib qho kev tivthaiv polyurethane kub yaj nplaum feem ntau yog siv rau cov kuab tshuaj tsis muaj cov ntaub ntawv tsis-woven.
Post lub sij hawm: Dec-12-2023