UV yekurapa pendi imhando yependi yegirinhi yekudzivirira kwezvakatipoteredza, ine hunhu hwekujeka kwepamusoro, kuomarara kwepamusoro uye kuramba kwekukwenya.Iyo inoshandiswa zvakanyanya mupurasitiki kana simbi substrate mafuta spray process.Chinhu chakatanhamara chinokanganisa kunaka kwekuputira uye goho mukupfapfaidza UV pendi inodonha, kureva kuti, kunamatira pakati peUV yekurapa pendi uye substrate haina kunaka.Ipapo isu tichaongorora zvikonzero uye mhinduro dzekuomesa kunamatira kubva kune maviri maficha eUV pendi uye kupfapfaidza substrate.
Zvikonzero nei UV yekurapa pendi yakaoma kuomerera kune substrate:
Kubva pakuongorora kweUV yekurapa pendi, mhedzisiro yeUV yekupotera pane substrate haina kusimba maererano nekupinda.Tichifunga nezvekuita mushure mekurapa, iyo viscosity yeyakaderera molecular uremu resin system inowedzera uye fluidity inoderera, saka kunyorova uye kupinda kwe substrate hakuna kukwana.Uyezve, iyo vhoriyamu shrinkage yeUV pendi panguva yekurapa uye nguva yekukurumidza kuita zvinhu zviviri.Iyo yekutanga ichakonzera mutsauko mu deformation pakati pejasi uye substrate, nekudaro kugadzira kushushikana pakati pekupfeka;Iyo yekupedzisira imhaka yekukurumidza kuita, izvo zvinokonzeresa kusafanana kweUV pendi system chimiro.
Kubva pakuona kweiyo substrate yeUV pendi yekupfapfaidza, chinhu chekutanga kunzwisisa ibasa rekunamatira.Simba rekuvapo kwayo rinotarisa kana pendi uye substrate inogona kuwana adhesion kuti iite chigadziko chakasimba.Saka pano tinofanira kutaura pesvedzero ye substrate polarity, crystallinity, pamusoro pesimba uye kutsvedzerera pane substrate pamusoro adhesion.Yakaderera isina polarity kana polarity, senge PP plastiki, iyo yakaoma kuoiri, yakakwirira crystallinity uye yakaderera pamusoro pesimba, senge PA nylon substrate, nepo kutsvedzereka kwacho kwakakurumbira musimbi isina tsvina.Naizvozvo, chimiro chema molecular uye zvimiro zve substrate zvakare zvine simba guru pakunamatira.Naizvozvo, kana pendi yeUV ichigona kugadziriswa, kiyi yekugadzirisa dambudziko rekusanamatira zvakanaka kwependi yeUV ndeyekuvandudza kunamatira pakati pe substrate nependi yeUV.
Nzira dzekusimudzira kunamatira pakati peUV pendi yekuputira uye substrate:
Munzira yekugadzirisa kunamatira kweUV yekurapa pendi yakapfapfaidzwa papurasitiki kana simbi pamusoro, pendi yakamira inopfapfaidzwa pamusoro peiyo substrate Sichuan adhesive treatment agent ndiyo mhinduro inoshanda yekusimudzira kunamira pakati pe substrate ne UV coating. .Chekutanga, iyo inonamira yekurapa mumiririri inogona kunyatsonyorovesa iyo substrate.Kechipiri, mumiririri wekurapa ane hydrogen yakasungirirwa emahara radicals nemapoka epolar senge hydroxyl ye substrate, iyo inoita kuti firimu riwedzere compact.Panguva imwecheteyo, iyo inonamira yekurapa mumiririri uye pendi inogona zvakare kuumba kemikari zvisungo, izvo zvinobatanidza iyo substrate pamusoro neiyo UV coating, uye inosimudzira kuumbwa kweiyo yepamusoro dhigirii yekunamatira pakati peUV pendi neiyo substrate.
Nguva yekutumira: Jun-28-2022