Abstract:Chinyorwa chinoongorora zvakadzama nezve kunaka kwesimba rekuyera midziyo yeadhesive mukuita lamination process.Kuwedzera kune izvi, inotaura kuti pachinzvimbo chekutonga kuyera kuita nekutonga kana paine'mavara machena' kana 'mafuru', ndiko kujeka kwezvigadzirwa zvelamineti zvinogona kunge zviri chiyero chekuongorora kwekuita kwekuenzanisa mukunamira.
1.Chinetso cheBubble uye Kukwirisa kweGlue
Mavara machena, mabhuru, uye kushata pachena zvinhu zvakajairika zvemhando yepamusoro mukugadziriswa kwezvinhu zvinosanganiswa.Muzviitiko zvakawanda, composite zvinhu ma processors anoti nyaya dziri pamusoro apa kusasimba kweanonamira!
1.1Namo iyi haisi iyo glue
Composite material processors anogona kudzoka asina kuvhurwa uye asina kushandiswa madhiramu ekunamira kune vatengesi zvichienderana nemutongo wehurombo hwekunamira, kana faira zvichemo kana zvichemo nevatengesi.
Izvo zvinofanirwa kucherechedzwa kuti glue inoonekwa seine kuderera kwekuita kwekuita ndeye "glue inoshanda mhinduro" iyo yakagadzirirwa / kuderedzwa nevatengi uye ine viscosity yehumwe kukosha.Nama yakadzoserwa ndiyo isina kuvhurwa bhaketi rekutanga reglue.
Aya mabhakiti maviri e "glue" akasiyana zvachose pfungwa uye zvinhu!
1.2Evhaluation zviratidzo zvekugadzirisa glue
Iyo tekinoroji zviratidzo zvekuongorora kuyera kuita kweanonamira kunofanirwa kuve viscosity uye pamusoro wetting tension.Kana kuti, "kunyorova kweglue" musanganiswa we "kunyorova kweglue" uye "kunyorova kweglue".
Patembiricha yemumba, kunyorova kwepamusoro kwe ethyl acetate kunosvika 26mN/m.
Iyo yepakutanga barrel concentration (yakasimba yemukati) ye solvent based polyurethane adhesives inoshandiswa mumunda wecomposite material processing inowanzova pakati pe50% -80%.Usati washandisa composite kugadzirisa, izvo zvadudzwa pamusoro apa zvinonamirwa zvinoda kuderedzwa kusvika kune yekushanda inosvika 20% -45%.
Nekuda kwekuti chikamu chikuru mune yakanyungudutswa adhesive inoshanda mhinduro ndeye ethyl acetate, iyo yepamusoro wetting tension ye diluted adhesive working solution ichave padyo nepamusoro wetting tension ye ethyl acetate pachayo.
Naizvozvo, chero bedzi kunyorova kwepamusoro kweiyo composite substrate inoshandiswa inosangana nezvinodiwa zvekuumbwa kwemubatanidzwa, kunyorova kweadhesive kuchave kwakanaka!
Kuongororwa kwemvura yeglue ndeye viscosity.Mundima yecomposite processing, inonzi viscosity (kureva kushanda viscosity) inoreva nguva mumasekonzi inosangana neglue inoshanda mvura painoyerera ichibuda mukapu yeviscosity, inopimwa pachishandiswa imwe modhi yekapu yekunamira.Zvinogona kutaridzirwa kuti mvura inoshandiswa yeglue yakagadzirwa kubva kumagirodhi akasiyana-siyana ekutanga bucket glue ine "working viscosity" yakafanana, uye "working fluid" yayo ine "glue fluidity" yakafanana!
Pasi pemamwe mamiriro asina kuchinjwa, iyo yakaderera "kushanda viscosity" ye "working fluid" yakagadzirirwa nemhando imwechete yemhando yekunamatira, zviri nani "adhesive fluidity" yayo!
Kunyanya, kune akati wandei akasiyana magiredhi ekunamira, kana iyo viscosity kukosha kweiyo diluted inoshanda mhinduro iri masekonzi gumi nemashanu, ipapo mhinduro yekushanda inogadzirirwa neaya mamakisi ekunamira ane yakafanana "glue leveling".
1.3Chimiro chekuyera cheglue chimiro cheglue inoshanda fluid
Mamwe madoro haaumbe viscous fluid kana mbiya ichangovhurwa, asi pane jelly senge projectile isina fluidity.Vanoda kunyungudutswa uye kunyungudutswa nehuwandu hwakakodzera hweorganic solvent kuti vawane iyo inodiwa yekuisa uye viscosity yeglue.
Zviripachena kuti kukwirisa kuita kweglue kuongororwa kwemugadziriso wekushanda wakagadzirwa mune chaiyo "kushanda kusungwa", pane kuongororwa kweiyo undiluted yepakutanga barrel glue.
Naizvozvo, hazvina kunaka kutaura kuti kusamira zvakanaka kweglue kune zvakajairika hunhu hweimwe mhando yepakutanga bhaketi glue!
2.Zvinhu zvinokanganisa kuenzana kwekunamatira
Nekudaro, kune yakasvibiswa inonamira yekushanda mhinduro, pane zvechokwadi misiyano mune yayo yekunamira yemvura mwero!
Sezvambotaurwa, zviratidzo zvikuru zvekuongorora kuenzana kwekuita kweadhesive working fluid ndeyepamusoro wetting tension uye kushanda viscosity.Chiratidzo chekunyorova kwepamusoro hachiratidzi shanduko dzakakosha mukati meiyo yakajairika yekushanda yekutarisa.Naizvozvo, hunhu hwehusina kunaka hwekunamira chiyero ndechekuti panguva yekushandisa, iyo viscosity yekunamatira inowedzera zvisingaite nekuda kwezvimwe zvinhu, zvichikonzera kudzikira kwekuita kwayo kwemazinga!
Ndezvipi zvinhu zvinogona kukonzera shanduko mune viscosity yeglue panguva yekushandiswa kwayo?
Pane zvinhu zviviri zvakakosha zvinogona kukonzera shanduko mune viscosity yeglue, imwe ndiyo tembiricha yeglue, asi iyo yekuisa glue.
Mumamiriro ezvinhu akajairika, viscosity yemvura inoderera nekuwedzera kwekushisa.
Pazvinyorwa zvevashandisi zvinopihwa nemakambani akasiyana anonamira, iyo viscosity kukosha kweiyo adhesive mhinduro (isati uye yapedza dilution) kuyerwa uchishandisa rotary viscometer kana viscosity kapu pamvura tembiricha ye20 ° C kana 25 ° C (kureva tembiricha yekunamatira. mhinduro pachayo) inowanzo ratidzwa.
Padivi remutengi, kana tembiricha yekuchengetera yebhaketi rekutanga reglue uye diluent (ethyl acetate) yakakwira kana yakaderera pane 20 ° C kana 25 ° C, tembiricha yeglue yakagadzirwa ichave yakakwira kana kuderera kupfuura 20 ° C. kana 25 ° C. Sezvineiwo, iyo chaiyo viscosity kukosha kweglue yakagadzirwa ichavawo yakaderera pane iyo viscosity kukosha inoratidzwa mubhuku rekushandisa.Munguva yechando, tembiricha yekunamatira yakagadzirirwa inogona kunge yakaderera pane 5 ° C, uye muzhizha, tembiricha yekunamatira yakagadzirirwa inogona kunge yakakwira kupfuura 30 ° C!
Izvo zvinofanirwa kucherechedzwa kuti ethyl acetate inonyanya kutenderera organic solvent.Munguva yekuvhuvhuta maitiro ethyl acetate, inotora huwandu hukuru hwekupisa kubva kune yakanamatira mhinduro uye nemhepo yakatenderedza.
Parizvino, akawanda laminating mayuniti mumakina anoumbwa akavhurika uye akashongedzerwa nemidziyo yemuno yekupedza simba, saka huwandu hukuru hwekunyungudutsa huchabuda kubva kune adhesive disc uye mbiya.Zvinoenderana nekuona, mushure menguva yekushanda, tembiricha yeglue inoshanda fluid mutireyi yeglue dzimwe nguva inogona kudarika 10 ° C yakaderera pane yakapoteredza tembiricha!
Sezvo kutonhora kweglue kunoderera zvishoma nezvishoma, viscosity yeglue ichawedzera zvishoma nezvishoma.
Saka, iyo yekuyera kuita kweanonyungudutsa yakavakirwa adhesives anowedzera zvishoma nezvishoma nekurebesa kwechishandiso nguva yekushandisa.
Mune mamwe mazwi, kana iwe uchida kuchengetedza kugadzikana kwe solvent based adhesive leveling, unofanirwa kushandisa viscosity controller kana imwe nzira yakafanana kuchengetedza inonamira viscosity yakagadzikana mukati mekuita kwekunyorera.
3.Evaluation zviratidzo zvekugadzirisa glue mhedzisiro
Kuongororwa kwemhedzisiro yeglue kunofanirwa kuve hunhu hwechigadzirwa chakaumbwa pane imwe nhanho, uye mhedzisiro yeglue inoreva mhedzisiro inowanikwa mushure mekuiswa glue. hunhu hwechigadzirwa, iyo chaiyo yekumhanyisa kumhanya kwemotokari mumugwagwa pasi pemamiriro chaiwo ndeimwe mhedzisiro.
Yakanaka glue kuyera ndiyo yakakosha mamiriro ekuwana yakanaka yekuyera mhedzisiro.Nekudaro, kuita zvakanaka kweglue kuita zvakanaka hakungokonzerese mhedzisiro yakanaka yeglue, uye kunyangwe kana glue riine kushomeka kwekuita (kureva high viscosity), yakanaka glue yekuyera mhedzisiro inogona kuwanikwa mune chaiwo mamiriro.
4. Iko kuwirirana pakati pemigumisiro yeglue leveling uye chiitiko che "white spots" uye "bubbles"
Kushata "mavara machena, mabhuru, uye kujeka" mhedzisiro yakawanda isingadikanwi pazvigadzirwa zvakaumbwa.Pane zvikonzero zvakawanda zvezvinetso zviri pamusoro, uye kusamira zvakanaka kweglue ndechimwe chazvo.Nekudaro, chikonzero chekusagadzikana kweglue hachingori nekuda kwekusagadzikana kweglue!
Mhedzisiro isina kunaka yeglue haigone kutungamirira ku "mavara machena" kana "mabhuru", asi inogona kukanganisa kujeka kwefirimu rinosanganiswa.Kana iyo micro flatness ye composite substrate yakashata, kunyange kana mugumisiro wekuenzanisa weadhesive wakanaka, kuchine mukana we "mavara machena uye mabhubhu".
Nguva yekutumira: Jan-17-2024