Cov neeg sawv cev rau kev sib npaugFeem ntau cov tshuaj pleev xim siv rau hauv cov txheej pleev xim yog muab faib ua cov tshuaj sib xyaw, acrylic acid, silicone, fluorocarbon polymers thiab cellulose acetate. Vim nws cov yam ntxwv tsis tshua muaj zog ntawm qhov chaw, cov neeg sawv cev tsis tsuas yog pab kom cov txheej pleev xim tiaj tus xwb, tab sis kuj tseem yuav ua rau muaj kev phiv. Thaum siv, qhov kev xav tseem ceeb yog cov teebmeem tsis zoo ntawm cov neeg sawv cev tiaj tus rau qhov rov ua dua thiab cov khoom tiv thaiv kev tawg ntawm cov txheej pleev xim, thiab qhov sib xws ntawm cov neeg sawv cev tiaj tus xaiv yuav tsum tau sim los ntawm kev sim.

1. Cov neeg sawv cev sib xyaw ua ke

Nws yog tsim los ntawm cov tshuaj hydrocarbon aromatic uas muaj cov tshuaj kub npau npau, ketones, esters lossis cov tshuaj zoo heev ntawm ntau pawg ua haujlwm, thiab cov tshuaj sib xyaw ua ke uas muaj cov tshuaj kub npau npau. Thaum npaj thiab siv, yuav tsum tau them sai sai rau nws qhov volatilization rate, volatilization balance thiab solubility, kom cov txheej muaj qhov nruab nrab ntawm cov tshuaj volatility thiab solubility thaum lub sijhawm ziab. Yog tias qhov volatilization rate qis dhau, nws yuav nyob hauv zaj duab xis xim ntev thiab tsis tuaj yeem tso tawm, uas yuav cuam tshuam rau qhov tawv ntawm zaj duab xis xim.

Hom tshuaj pleev xim no tsuas yog siv rau kev txhim kho qhov tsis zoo ntawm kev pleev xim (xws li kev ntsws, kev ua kom dawb, thiab kev ci ntsa iab tsis zoo) uas tshwm sim los ntawm kev ziab sai sai ntawm cov tshuaj pleev xim thiab kev yaj tsis zoo ntawm cov khoom siv hauv paus. Feem ntau, qhov ntau npaum li cas yog 2% ~ 7% ntawm tag nrho cov xim. Nws yuav ua rau lub sijhawm ziab ntawm cov xim ntev dua. Rau cov xim pleev xim qhuav hauv chav sov (xws li xim nitro) uas yooj yim poob thaum siv rau ntawm lub ntsej muag, nws tsis tsuas yog pab nrog kev ua kom tiaj tus, tab sis kuj pab txhim kho kev ci ntsa iab. Thaum lub sijhawm ziab, nws kuj tseem tuaj yeem tiv thaiv cov npuas dej thiab cov qhov me me uas tshwm sim los ntawm kev ua kom tiaj tus ntawm cov tshuaj pleev xim. Tshwj xeeb tshaj yog thaum siv nyob rau hauv qhov kub thiab txias thiab huab cua noo siab, nws tuaj yeem tiv thaiv qhov chaw ntawm cov xim pleev xim kom tsis txhob qhuav ua ntej lub sijhawm, muab cov kab sib npaug ntawm cov tshuaj pleev xim, thiab tiv thaiv kom tsis txhob muaj pos huab dawb hauv cov xim nitro. Hom tshuaj pleev xim no feem ntau siv ua ke nrog lwm cov tshuaj pleev xim.

2. Cov neeg sawv cev acrylic leveling

Hom tshuaj leveling no feem ntau yog cov copolymer ntawm acrylic esters. Nws cov yam ntxwv yog:

(1) Cov alkyl ester ntawm acrylic acid muab cov dej num tseem ceeb ntawm qhov chaw;

(2) Nws−COOH,−OH, thiab−NR tuaj yeem pab kho qhov sib xws ntawm cov qauv alkyl ester;

(3) Qhov hnyav molecular sib piv yog ncaj qha cuam tshuam rau qhov kev ua tau zoo kawg nkaus. Kev sib raug zoo tseem ceeb thiab cov saw hlau ntawm polyacrylate yog cov xwm txheej tsim nyog rau kev ua tus neeg sawv cev leveling tsim nyog. Nws cov txheej txheem leveling tau feem ntau pom tseeb hauv theem tom qab;

(4) Nws ua kom pom cov khoom tiv thaiv kev ua npuas dej thiab kev ua npuas dej hauv ntau lub tshuab;

(5) Tsuav yog muaj cov pab pawg me me (xws li -OH, -COOH) hauv tus neeg sawv cev leveling, qhov cuam tshuam rau kev rov ua dua tshiab yuav luag tsis pom, tab sis tseem muaj peev xwm cuam tshuam rau kev rov ua dua tshiab;

(6) Kuj tseem muaj teeb meem ntawm kev sib phim polarity thiab kev sib xws, uas kuj xav tau kev xaiv sim.

3. Tus neeg sawv cev leveling silicone

Cov silicones yog ib hom polymer uas muaj cov saw hlau sib txuas silicon-oxygen (Si-O-Si) ua lub cev pob txha thiab cov pab pawg organic txuas rau cov silicon atoms. Feem ntau cov tshuaj silicone muaj cov saw hlau sab nrog lub zog nto qis, yog li cov molecule silicone muaj lub zog nto qis heev thiab lub zog nto qis heev.

Cov tshuaj polysiloxane uas siv ntau tshaj plaws yog polydimethylsiloxane, tseem hu ua methyl silicone roj. Nws siv tseem ceeb yog ua tus defoamer. Cov qauv qis molecular hnyav muaj txiaj ntsig zoo dua hauv kev txhawb nqa qib, tab sis vim muaj teeb meem loj heev, lawv feem ntau yooj yim shrinkage lossis tsis muaj peev xwm rov ua dua. Yog li ntawd, polydimethylsiloxane yuav tsum tau hloov kho ua ntej nws tuaj yeem siv tau zoo thiab nyab xeeb hauv kev pleev xim.

Cov txheej txheem hloov kho tseem ceeb yog: polyether hloov kho silicone, alkyl thiab lwm cov pab pawg sab hloov kho silicone, polyester hloov kho silicone, polyacrylate hloov kho silicone, fluorine hloov kho silicone. Muaj ntau txoj kev hloov kho rau polydimethylsiloxane, tab sis txhua tus ntawm lawv yog tsom rau kev txhim kho nws qhov sib xws nrog cov txheej txheem.

Hom tshuaj no feem ntau muaj ob qho tib si leveling thiab defoaming effects. Nws qhov sib xws nrog lub txheej yuav tsum tau txiav txim siab los ntawm kev sim ua ntej siv.

4. Cov ntsiab lus tseem ceeb rau kev siv

Xaiv hom zoo: Xaiv cov tshuaj pleev kom zoo raws li hom thiab kev ua haujlwm ntawm cov txheej. Thaum xaiv cov tshuaj pleev kom zoo, nws cov khoom sib xyaw thiab cov yam ntxwv nrog rau nws qhov sib xws nrog cov txheej nws tus kheej yuav tsum tau xav txog; tib lub sijhawm, ntau yam tshuaj pleev kom zoo lossis lwm yam khoom ntxiv feem ntau siv ua ke los sib npaug ntau yam teeb meem.

Ua tib zoo saib xyuas qhov ntau ntxiv: kev ntxiv ntau dhau yuav ua rau muaj teeb meem xws li ntsws thiab sagging ntawm qhov chaw txheej, thaum kev ntxiv tsawg dhau yuav tsis ua tiav qhov txiaj ntsig leveling. Feem ntau, qhov ntau ntxiv yuav tsum tau txiav txim siab raws li qhov viscosity thiab leveling xav tau ntawm cov txheej, ua raws li cov lus qhia rau kev siv cov reagent, thiab muab cov txiaj ntsig xeem tiag tiag ua ke.

Txoj kev txheej: Qhov kev ua tau zoo ntawm cov txheej yog cuam tshuam los ntawm txoj kev txheej. Thaum siv cov neeg sawv cev leveling, koj tuaj yeem siv txhuam, txheej roller lossis txau kom muab kev ua si tag nrho rau lub luag haujlwm ntawm tus neeg sawv cev leveling.

Kev Sib Tov: Thaum siv cov tshuaj pleev kom sib npaug, cov xim yuav tsum tau sib tov kom tag nrho cov tshuaj pleev kom sib npaug hauv cov xim. Lub sijhawm sib tov yuav tsum tau txiav txim siab raws li cov yam ntxwv ntawm cov tshuaj pleev kom sib npaug, feem ntau tsis pub tshaj 10 feeb.

Nanjing Reborn Cov Khoom Siv Tshiab muab ntau yamcov neeg sawv cev rau kev sib npaugsuav nrog Organo Silicone thiab Non-silicon rau txheej. Sib phim BYK series.