Sib tham txog tus qauv txheej txheem ntawm phau EVA kub yaj nplaum
Peb yog ib lub tuam txhab luam ntawv loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv xov xwm luam ntawv, phau ntawv luam ntawv, phau ntawv nyuaj, phau ntawv luam tawm, phau ntawv luam tawm, phau ntawv luam tawm, lub thawv ntim, daim qhia ntawv, txhua yam ntawm PVC, cov ntawv luam tawm, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Qhov kub nplaum nplaum yog ib qho khoom ntawm qhov kub, maj mam muab rau cua sov thiab ua ib cov kua txia uas muaj lub cev thiab muaj kab mob zoo, thiab muaj peev xwm muaj qee qhov txos rau ntawm qhov substrate, thiab ua kom lub zog thiab tso zis tom qab txias. Tuam Tshoj tus luam ntawv ua lag luam khoom phau ntawv ntim cov nplaum hluavtaws kub qhuav, ua raws li EVA kub yaj cov nplaum. Kev tsim tawm thiab nce qib ntawm EVA kub yaj yaj nyob rau hauv Suav teb tsis ntev. Vim tias kev txhawb nqa ntawm cov nplaum tsim, cov khoom siv thiab kev thov ntawm cov hluavtaws kub ntawm cov luam ntawv tau nce, tab sis feem ntau cov tuam txhab lag luam tsis muaj zog vim qoj tsis muaj zog ntawm lub hoobkas. Tsis muaj kev ntsuam xyuas thiab tswj kev tsim nyog, kev tsim cov khoom uas tsis tshua muaj cov ntsiab lus, tsis muaj kev ruaj khov thiab txhim khu kev txhawb nqa zoo, tsis khoom zoo, cuam tshuam zoo tshaj ntawm kev tshaj tawm tom qab, ua rau siv kev txhim kho, tshav kub Qhov tsim tau thiab siv cov kua nplaum yog tsim nyog. Tsab xov xwm no tsom mus rau ntau txoj hauv nws cov qauv kev ua haujlwm rau tus yam ntxwv ntawm EVA hot melt adhesive.
Softness
Kev nplua nplaum ntawm cov tawv kub nplaum yog ncaj qha ntsig txog kev kho ceev. Thaum lub qhov muag softening tsis tshua muaj siab, txoj kev ceev ceev yuav qeeb qeeb, uas yuav ua rau phau ntawv deform los yog tsis txiav thaum txiav, uas yuav cuam tshuam qhov kev ua tau zoo ntawm cov kab txuas, Thaum lub qhov muag siab dhau lawm, qhov ceev ceev yuav nce, tiam sis nws yuav cuam tshuam lub sij hawm ua ke (piv txwv li, qhib lub sijhawm) ntawm cov kub kub nplaum. Yog tias lub sijhawm qhib luv luv, phau ntawv thaiv thiab lub hau yuav tsis muab rho tawm, thiab qhov kub ntxhua nplaum feem ntau yuav tsum muaj. Lub softness yog nruab nrab ntawm 80 thiab 90 ° C.
2. Adhesion, flow properties
Vim lub tshwj xeeb siv kub qhuav nplaum, kub kub nplaum yuav tsum muaj ib yam yaj viscosity, thiaj li los xyuas kom meej zoo flowability thiab wettability ntawm kub qhuav nplaum ntawm melting kub, thiab txaus penetration thiab adhesion rau daim ntawv fiber . Lub zog sib txuas. Yog hais tias tus yaj viscosity ntawm kub yaj adhesive yog tsawg heev, cov kua nplaum nyob rau nraum qab ntawm phau ntawv yuav tsis txaus; hos cov yaj viscosity siab dhau heev lawm, tus dej yuav tsis ploj, uas yuav cuam tshuam txog cov nyhuv ntawm phau ntawv rov qab, thiab nws yooj yim los tsim ib nplooj ntoos los sis tawg hauv qab ntawm phau ntawv thaum phau ntawv tig.
3. Kev sib haum xeeb rau qhov kub thiab txias
Kub yaj cov nplaum muaj kub ua kom sov. Feem ntau, zoo nkauj yaj cov nplaum yuav tsum muaj qhov kub tsis kam, kub thiab thermal stability rau qhov kub thiab txias. Qhov qis tsis kam ntawm kub yaj adhesives yog ncaj qha ntsig txog cov phau ntawv nplaum hauv cov chaw txias. Qhov kev nyab xeeb siv, thiab qhov kub siab ua hauj uas yog ncaj qha ntsig txog cov laus cov khoom ntawm kub kub nplaum.
Nyob rau hauv dav dav, qhov zoo dua lub toughness ntawm kub qhuav nplaum, qhov zoo dua qhov tsawg kub kev ua tau zoo, thiab vice versa. Qhov ntsuas kub tsis tshua muaj kev sib tw ntawm cov tawv kub mas feem ntau nyob hauv qhov chaw kub tsis tshua muaj siab, vim tias qhov khib nyiab tsis yoojyim rau lub sijhawm no; qhov kub siab ua hauj ntawm kub yaj nplaum tsuas yog hais txog lub tshav kub nplaum ntawm ib qho kub (feem ntau me ntsis siab tshaj qhov ntsuas kub). Nws tsis ua rau lub cev tsis sib thooj thiab viscosity txo; lub thermal stability ntawm kub yaj nplaum yog hais txog nws cov cuab yeej los tiv thaiv kev laus, thiab thermal stability zoo txhais tau hais tias kub qhuav nplaum tsis ua kom muaj kua nplaum nyob rau hauv cov cua sov ntev. Nyob rau tib lub sij hawm, qhov saum npoo yog tsis crusted thaum siv. Feem ntau, qhov thermal stability ntawm kub yaj nplaum yuav tsum tau muab tso tawm raws li qee yam ntawm kev nce nyob rau hauv cov xim thiab viscosity tom qab cua sov rau ib lub sij hawm ntawm lub sij hawm nyob rau hauv qhov kub thiab txias. Ib qho ntawm txoj kev yooj yim yog ntsuas sov so ntawm qhov kub dua, thiab cov kev hloov hauv cov gel nrog kev laus los tiv thaiv kev laus yog yooj yim heev los xyuas.
4. Tensile zog thiab hardness
Yuav ua kom cov phau ntawv kom zoo, ua tsis muaj loos los yog nplooj ntawv poob thaum nquag ploj thiab folding flattening. Cov kub nplaum nplaum yuav tsum muaj qhov tsim nyog (feem ntau HS78 ° ~ 90 °) thiab tsim nyog yuav tsum muaj kev sib haum xeeb. . Nyob rau hauv lub tsev kawm ntawv ntawm txaus penetration ntawm daim ntawv fibers, nws yog ib qhov tsim nyog kom muaj zog tensile lub zog thiab tsim nyog elongation thaum ua txhaum. Feem ntau, cov khoom siv ntawm cov tawv kub yaj yog ntsuas los ntawm ob qhov cim ntawm cov tawv thiab lub zog tensile. ntawm.
Lub hardness ntawm kub qhuav nplaum yog ncaj qha ntsig txog rau cov ntaub ntawv hauv lub pob nyem ntawm phau ntawv nplaum. Qhov nyuaj yog qhov siab, thiab nplooj ntawv nplooj ntawv yuav raug rau qee qhov kev sib tw ntawm kev tawm tsam, thiab sab nraum qab ntawm phau ntawv yog ruaj khov thiab zoo nkauj. Tsis tas li ntawd, lub siab tawv kuj tseem raug txiav txim siab kom txo cov tuab ntawm cov txheej nplaum thiab txo lub tsev noj cov kua kub nplaum. Ntawm qhov tod tes, yog tias qhov nyuaj tsis qis, nws yog ib qho tsim nyog yuav ua rau kom cov tawv nqaij ntawm cov roj hmab los txhim kho lub zog, hauv particular, ib phau ntawv loj loj-ob nplooj ntawv lossis ib phau ntawv tuab tuab nrog ib daim ntawv zoo zoo.
Nyob rau hauv qhov chaw uas lub pob zeb kub nplaum nplaum nplaum yog txaus raws daim ntawv, uas yog, cov kub yaj nplaum txaus txaus nkag mus rau hauv daim ntawv fiber, qhov kub yaj nplaum yuav tsum muaj lub siab tensile zog kom paub meej tias cov adhesion thiab siv cov kub yaj rau nplaum rau phau ntawv. Muaj zog, yog li ntawd phau ntawv tsis tshwm sim thaum siv cov nplooj ntawv xoob, nplooj ntawv so thiab tawg. Thaum lub zog tensile ntawm kub kub nplaum yog ntau tshaj 4 MPa, nws yog zoo rau kev tswj ntawm phau ntawv bookbinding thiab tag nrho cov nqi ntawm cov khoom. Toughness, hardness thiab lub zog yog interrelated. Thaum lub sij hawm ntev ntawm qhov kub ntxhov nplaum nplaum yog 100%, tom qab ntawm phau ntawv yuav tawg thiab tawg vim qhov tsis sib haum rau sab nraud quab yuam, thiab hloov dua siab tshiab, nws yuav elastic vim nws ntev elongation ntawm so, ua rau ntau affinities tshaj colloid thiab daim ntawv fibers. Tshem tawm ntawm nplooj ntawv, los yog ua tsis tau vim muaj ntau tshaj li qhov tsis sib haum.
5. Chroma thiab tsis hnov tsw
Nyob rau hauv cov nqe lus ntawm tsos, kub yaj adhesives yuav tsum tau ntxiv nrog sib colour cov ntaub ntawv rau xim luam ntawv. Feem ntau, cov phom sij zoo zoo los sis cov duab zaj duab xis yog qhov sib, ci iab, thiab tsis muaj coarse txawv teb chaws. Feem ntau, qhov zoo tshaj plaws ntawm cov khoom siv hluav taws xob zoo tshaj plaws yog cov xim dawb los yog lub teeb daj, thiab cov gloss yog mos thiab qhov ceev yog feem ntau li 0.93g / cm3. Glossy kua nplaum qhia tau hais tias cov khoom siv raw muaj miscibility. Yog hais tias raw cov ntaub ntawv tsis yog tag nrho melted, nws yuav poob lub zoo ua ntawm raw khoom. Cov nplaum muaj cov permeability rau daim ntawv, thiab lub zog nplaum tsis muaj zog. Qhov zoo ntawm daim nplaum tsis ruaj khov. Cov roj tso tawm los ntawm lub yaj thaum lub sij hawm melting txheej txheem yuav tsum tau nyob rau hauv qhov kev ntsuas qhov ntsuas. Feem ntau, tus neeg teb xov tooj nyhav yog tsis muaj kuab lom thiab ntxhiab tsw dawb qhuav, tab sis nws tsis yog tshuaj lom thaum lub sij hawm xaiv kub kub nplaum thiab kev ntsuam xyuas ntawm kub yaj nplaum. Qhov kub qhuav nplaum yog thawj yuav tsum tau guaranteed, yog li xim thiab tsw ntawm kub yaj nplaum yuav tsum tau nyob rau hauv kev ntsuam xyuas system.
6. Kev nqhis dej
Ntev npaum li lub kua nplaum tso rau hauv dej, qhov nqus tau ntawm lub kua nplaum yuav pom tau, thiab cov kua nplaum yuav tsum tsis txhob ntab ntev ntev. Feem ntau, cov roj hmab uas muaj lub zog nqaim tshaj li 1 yuav tog mus rau hauv qab ntawm dej, thiab rubber nrog ib qhov kev nqus ntawm tsawg tshaj 1 yuav ntab rau saum npoo. Rau cov cement uas muaj kev nqus loj dua 1, qhov kev ua tiav kev lag luam yog qis tshaj qhov uas muaj kub yaj cov nplaum nrog ib qho kev nqus tsawg dua li 1. Ntxiv mus, qhov siab zog ntawm qhov kub ntxhov nplaum, ntau dua qhov nyhav ntawm qhov ib cov nplaum thaum lub nplaum kab yog tib yam, thiab qhov no yuav ua rau kom qhov khoom loj tuaj. nqi.
Sib piv nrog cov lag luam txawv teb chaws, Tuam Tshoj tus kub yaj cov nplaum lag luam muaj qhov sib txawv hauv nws cov khoom zoo, cov txheej txheem kev ua thiab kev ua tau zoo ntawm cov ntaub ntawv raw khoom thiab cov khoom siv ntau lawm. Rau qhov kub qhuav nplaum lag luam nyob rau hauv Tuam Tshoj, txheej txheej kub nplaum nplaum zoo rau kev ntsuam xyuas cov qauv yog nws yog qhov tsim nyog tias cov saum toj no kev tsom xam tsuas yog soj ntsuam cov khoom ntawm cov kub yaj cov nplaum los ntawm cov khoom ntawm cov tawv kub yaj. Nws yuav tsum tau pab cov neeg siv kom nkag siab txog qhov kub yaj cov nplaum thiab muaj ib qho chaw nyob hauv cov txheej txheem uas xaiv cov xim kub yaj.