Heavy hlau-dawb Dej Soluble Polyester Chips & Slurry
adhesion zoo heev;Nws muaj cov qauv molecular zoo ib yam li polyester, thiab muaj kev sib raug zoo nrog polyester.Lub adhesion nrog polyester yog zoo dua li PVA, acrylate, hloov cov hmoov txhuv nplej siab thiab lwm yam slurries.
Zoo solubility dej;Nws yog yooj yim soluble hauv dej kub saum 80 ℃, tsis muaj nag lossis daus, tsis muaj tawv nqaij, zoo sib xws nrog cov hmoov txhuv nplej siab, PVA, acrylic slurry, tsis muaj nag lossis daus, tsis muaj stratification.
Tsawg viscosity thiab ruaj khov;nws yoog mus rau (siab sib xws, siab siab, tsis tshua muaj viscosity) sizing txheej txheem, muaj zog nkag, yooj yim kom tau zoo nkag, fiber ntau cohesion, hairiness adhesion.
Cov yeeb yaj kiab loj yog ruaj;nws yog ruaj, du thiab pob tshab, tusyees tawg thaum sib cais, thiab cov xov paj yog du.Qhov qhib ntawm lub loom yog qhov tseeb, uas txo qis tus nqi ntawm warp xov paj tawg thiab txhim kho kev ua haujlwm ntawm lub loom.
Hloov PVA tuaj yeem txo tus nqi;PVA tuaj yeem hloov tau los ntawm 1: 2, uas tuaj yeem txo qis tus nqi slurry ntawm qhov chaw ntawm kev ua kom muaj kev sib tw.
Ib puag ncig-phooj ywg;Nws tuaj yeem yog alcoholysis, hydrolysis, alkali degradation, photodegradation thiab microbial degradation.Tsis tsuas yog qhov kev ua haujlwm degradation zoo dua PVA, tab sis kuj yog qhov ntau npaum li 1/2 ntawm PVA, uas tuaj yeem txo tus nqi ntawm cov dej phwj tuaj.Nws yog ib puag ncig-phooj ywg slurry.
| Yam khoom | Chav tsev | Index |
| Qhov tshwm sim | Granular los yog hmoov khoom | |
| Xim | Dawb | |
| iav hloov kub | ℃ | ≥42 ℃ |
| Intrinsic viscosity | dL/g | 0.380dl ± 0.020 |
| AV | KOHmg/g | 6 |
| H2O | % | 1% |
| Dej solubility | Yooj yim soluble hauv dej kub saum 80 ℃ | |
| Tsis hnov tsw | Non toxic thiab tasteless |
Formula: Raws li cov qauv uas twb muaj lawm, tag nrho cov khoom ntim tseem tsis hloov pauv, thiab 1kg dej-soluble polyester slurry yog siv los hloov 2kg PVA.Qhov tsis txaus yog ntxiv nrog cov hmoov txhuv nplej siab los yog hloov cov hmoov txhuv nplej siab, thiab ntxiv cov roj uas tsim nyog thiab tus neeg sawv cev antistatic ntxiv los xyuas kom meej qhov kwv yees qhov loj me (qhov tseeb sizing tus nqi yuav qis dua).
Sizing: muab cov dej kom tsim nyog rau hauv lub thoob qhov loj, tig rau qhov sib tov, ua ntej muab cov hmoov txhuv nplej siab, tom qab ntawd muab tso rau hauv cov dej-soluble polyester slurry, do tag nrho, ces tsa qhov kub kom siab tshaj 95 ℃, ces qhib lub me cua valve rau boil rau ntau tshaj 30 feeb, ces ntxiv roj, antistatic tus neeg sawv cev los yog kua slurry, boil thiab sib tov zoo, thiab ces siv nws tom qab teem lub ntim thiab viscosity.
Siv raws li kev taw qhia ntawm cov kws tshaj lij kws tshaj lij.
Nyob rau hauv cov mis slurry, cov pab slurry uas muaj bivalent hlau los yog hnyav hlau ntsev yuav tsum tau zam kom deb li deb li sai tau, thiab cov dej uas muaj hardness heev yuav tsum tau zam kom deb li deb li sai tau.Cov dej uas muaj zog heev yuav tsum tau softened ua ntej siv.Tsis txhob siv NaOH ua tus neeg sawv cev decomposing thaum sib tov slurry.Tus nqi PH ntawm slurry yuav tsum nyob nruab nrab ntawm 6 thiab 7.
