Hauv kev nthuav dav ntawm kev lag luam ntim, kev ua haujlwm ntawm cov nplaum muaj ib txwm yog qhov tseem ceeb los xyuas kom zoo thiab ua haujlwm ntawm kev ntim. Raws li cov khoom siv nrog cov khoom siv tshuaj tshwj xeeb,NVP (N-yas Pyrrolidone) Homopolymer tau nyiam dav dav nyob hauv daim teb ntawm cov nplaum ntim cov nplaum nyob rau hauv xyoo tas los no. Seb nws tuaj yeem txhim kho lub zog uas muaj zog hauv kev ntim cov ntawv thov tau dhau los ua kev sib tham hauv kev lag luam. Kab lus no yuav pib los ntawm cov qauv tshuaj lom thiab cov yam ntxwv ntawm NVP homopolymer, kev thov ua yeeb yam nrog lwm cov ntaub ntawv, thiab cov txheej txheem ntau lawm tsim tau. Txhawm rau kom teb tau cov lus nug tseem ceeb no, nws muab cov txiaj ntsig tseem ceeb rau cov kws ua haujlwm hauv kev lag luam ntim khoom.
Ntawv
1. Tshuaj Txhuam Cov Qauv thiab Cov Khoom Ntawm NVP Homopolymer
2. Cov cai yuav tsum rau kev sib raug zoo lub zog hauv kev siv cov ntawv thov
3. Kev sim kawm txog cov nyhuv ntawm nvp homopolymer ntawm tsev pheeb suab
4. Kev ua yeeb yam ntawm NVP homopolymer hauv cov khoom ntim ntim sib txawv
5. Kev sib piv nrog lwm cov polymers hauv kev siv daim ntawv thov ntim khoom
6. Cov nyhuv ntawm nvp Homopolymer ntawm kev ntim Ntau Txheej
7. Cov kev sib tw thiab cov kev daws teeb meem hauv kev siv
8. Kev ua lag luam cov kev cia siab thiab kev txhim kho
9. Xaus
Tshuaj lom neeg cov qauv thiab cov yam ntxwv ntawm NVP homopolymer
Nvp homopolymerYog cov polymer tsim los ntawm polymerization ntawm N-Vinylpyrrolidone monomers. Hauv nws cov qauv molecular, lub nplhaib pyrrolidone yog qhov tseem ceeb. Lub polarrity ntawm lub pyrrolidone nplhaib ua rau nvp homopolymer muaj cov dej solubility zoo thiab affinity rau ntau qhov chaw polar. Los ntawm cov kev pom ntawm kev sib txuam cov zog, cov pab pawg carbon (c}}}}}}} o) nyob rau hauv n hydroxyl (-oh) thiab amino (-nh₂). Qhov kev ua kas fes hydrogen no yog qhov tseem ceeb rau nws ua tau kev txhim kho kom muaj zog. Ib qho ntxiv, NVP homopolymer muaj cov yeeb yaj kiab zoo nkauj thiab tuaj yeem tsim cov khoom sib txuas ntxiv thiab cov khoom siv txuas ntxiv ntawm kev ua tau zoo ntawm kev sib txuas lus. Piv txwv li, hauv cov kua aqueous, nvp homopolymer molecular chains tuaj yeem tsim cov qauv xoob ntawm hydrogen bond sib txuas. Thaum cov dej yaj, cov molecular tau npaj kom ua ib daim duab tais txheej nrog qee yam kev txhawb nqa lub cev, muab kev txhawb nqa lub cev rau kev sib raug zoo.
Cov kev xav tau rau lub zog uas muaj zog hauv kev siv cov ntawv thov
Hauv kev ntim khoom, sib txawv ntawm cov ntim muaj cov kev cai tshwj xeeb rau lub zog bonding.
Muaj cov khoom noj ntim khoom: tsis yog yuav tsum tau ua kom muaj kev ruaj khov, tab sis nws kuj tseem siv tau, xws li av noo kev hloov pauv thiab kub hloov pauv). Piv txwv li, rau kev ntim khoom ntawm cov zaub mov qhuav xws li qos yaj ywm chips, cov nplaum yuav tsum tau los tswj kev sib raug zoo ntev hauv cov av noo ib puag ncig; Thiab rau tub yees lossis khov cov zaub mov ntim, cov nplaum yuav tsum muaj peev xwm tiv thaiv cov chaw kub tsawg tsis muaj me ntsis tsoo lossis debonding.
Kws Ntim Photo: Lub zog muaj zog ua tau raws li cov qauv nruj ua kom muaj kev sib khi thiab kev ncaj ncees ntawm cov kws tshuaj ntim thiab tiv thaiv cov tshuaj los ntawm kev paug lossis tsis zoo. Piv txwv li, rau cov tshuaj hlwv hluav taws xob yuav tsum ua kom muaj kev sib raug zoo ntawm cov hlwv thiab cov tshuaj txhuas txhuas, thiab tsis muaj kev phom sij tau tuaj yeem tsiv mus rau hauv cov tshuaj.
Muaj cov khoom lag luam ntim: rau qee cov khoom lag luam hnyav lossis muaj lub zog sib tw ua kom muaj lub zog ua kom muaj zog, cuam tshuam thiab hnyav thauj khoom thaum thauj khoom. Piv txwv li, qhov sib khi ntawm cov thawv ntoo cov khoom siv yuav tsum muaj zog txaus los xyuas kom muaj kev nyab xeeb ntawm cov khoom siv thaum lub sijhawm thauj mus los.
Kev xyaum sim ntawm cov nyhuv ntawm nvp homopoler ntawm Bond zog
Ntau cov kev sim tau ua nyob ib ncig ntawm cov nyhuv ntawm nvp Homopolymer ntawm Bond zog.
Kev sib txheeb ntawm kev sib raug zoo thiab kev tshawb nrhiav lub zog: hauv kev tshawb fawb ntawm cov nplaum yas ntim cov nplaum ntawm cov nvp homopolymer hauv cov missypes. Qhov sib khi khi tau ntsuas los ntawm Lap Shaear kuaj, thiab cov txiaj ntsig tau pom tau nce los ntawm 3% ({} mpa rau 3.5 MPa. Txawm li cas los xij, thaum cov ntsiab lus siab tshaj 8%, lub zog txhim kho qeeb ntxiv rau kev nkag siab ntau ntawm molecular charts, cuam tshuam rau tag nrho kev sib cuag nrog lub substrate nto.
| Nvp homopolymer converration (nyhav piv) | Lap shear zog (mpa) | Ua tsis tiav hom |
|---|---|---|
| {{0 {0}}% (Tswj Pawg) | 1.8 ± 0.1 | Cohesive tsis ua hauj lwm ntawm nplaum txheej |
| 3% | 2.3 ± 0.2 | Kev sib xyaw ua tsis tiav ntawm interface thiab cohesion |
| 5% | 2.8 ± 0.2 | Kev sib xyaw ua tsis tiav ntawm interface thiab cohesion |
| 8% | 3.5 ± 0.3 | Substrate tsis ua hauj lwm (Ntawv Fiber Rhuav tawg) |
| 10% | 3.6 ± 0.2 | Substrate tsis ua hauj lwm (Ntawv Fiber Rhuav tawg) |
Cov nyhuv ntawm molecular hnyav: lwm sim piv tau piv rau NVP homopolymers ntawm ntau qhov hnyav molecular hnyav. Txawm hais tias qhov hnyav molecular hnyav (li 2 {{{}}}} g \/ mol Home ntawm substrate, cov network ua ke yog tsis muaj zog txaus; Lub siab molecular hnyav (txog 100, {3} g \/ mol hompolosymer yog qhov nyuaj rau kev sib tw siab, thiab nws tsis yooj yim mus kis rau saum npoo ntawm substrate. Qhov nruab nrab molecular hnyav (txog 50, {5}} g \/ mol p \/ mpa, ntsuas qhov peev xwm ntawm kev nkag mus, kis mus thiab tsim kev sib koom tes.
| Molecular hnyav (g \/ mol) | Nplaum viscosity (Mpa-25 degree) | Lap shear zog (mpa) | Zaj duab xis hloov pauv |
|---|---|---|---|
| 20,000 | 50 ± 5 | 2.5 ± 0.2 | Translucent |
| 50,000 | 200 ± 10 | 4.0 ± 0.3 | Dawb vog |
| 100,000 | 800 ± 50 | 3.2 ± 0.2 | Turbo me nyuam |
| 200,000 | 3000 ± 200 | 2.0 ± 0.1 | Kua luam |
Kev ua kom kam rau ib puag ncig ib puag ncig ua los ntawm cov nplaum uas muaj nVP homopolymers tau raug ntsuas rau 7 hnub, thiab tom qab ntawd kev sib raug zoo lub zog ntsuas. Cov txiaj ntsig tau pom tias nws lub zog khaws cov nqi khaws cia yog 80%, thaum lub zog khaws cov khoom nplaum ntawm cov tsoos nplaum uas tsis muaj nVP homopolymer tau tsuas yog 60%. Tom qab tau muab tso rau hauv qhov kub siab (60 degree) ib puag ncig ntawm NVP homopolymers yog 75%, uas tau pom cov khoom zoo ntawm nvopolymers nyob rau hauv kev txhim kho ib puag ncig cov nplaum nco txog ntawm cov nplaum.
| Kuaj mob | Nvp homopolymer-raws li nplaum (8% concentration) | Tsoos Acrylate Adhesive | Qhov sib txawv hauv lub zog khaws cia |
|---|---|---|---|
| Cov Qauv Txheej Txheem (23 Qib \/ 50% Rh) | Thawj Lub Zog: 3.5 MPA | Thaum pib ua lub zog: 2.8 MPA | - |
| Cov av noo (90% rh, 7 hnub) | 2.8 MPA (80% khaws cia) | 1.7 MPA (60% khaws cia) | +20% |
| Kev kub siab (60 degree, 48 teev) | 2.6 MPA (75% khaws cia) | 1.5 MPa (55% khaws cia) | +20% |
| Tsawg kub (-20 degree, 24 teev) | 3. {{0 mpa mpa (86} rov mus ua haujlwm) | 2. {{{{}} MPa (71% khaws cia) | +15% |
Kev ua haujlwm ntawm nvp homopolers hauv cov khoom ntim ntim sib txawv
Cov khoom ntim yas ntim khoom: rau cov tsis muaj-ncov qaum teb xws li polyethylene xws li polypropeylene (PP) thiab kho mob polyprounding tom qab kev kho mob polarization. Piv txwv li, hauv PE Zaj duab xis ntim, PE Deg yog thawj pawg kho kom paub cov pab pawg polar, thiab tom qab ntawd cov nplaum muaj nvp homopoler yog siv. The bonding strength can be increased by 30% - 50% compared with traditional adhesives. Qhov no vim tias cov pawg polar ntawm NVP homopolers tsim muaj kev sib cuam tshuam muaj zog nrog cov haiv neeg polar rau ntawm kev kho PE nto.
Cov Ntawv Ntim Ntim: Ntawv ntim muaj ntau pawg, thiab carbonyl pawg ntawm nv hompolers daim ntawv ntau nrog cov pab pawg hydroxyl. Hauv kev sim sefting ntawm kraft ntawv ntim, cov ntawv sau tau raug rhuav tshem, tsis yog cov nplaum ua kom siv lub zog ntawm lub zog.
Hlau ntawv ci Ntim Cov Khoom Ntim: hauv txhuas ntawv ntim, nv hompolymers tuaj yeem txhim kho cov txheej txheem oxide (xws li ua ke sib koom tes). Experimental measurements show that the bonding strength of adhesives containing NVP homopolymers to aluminum foil can reach 5.0 N\/25mm (according to relevant industry test standards), while ordinary adhesives are only 3.0 N\/25mm, with a significant gap.
Kev sib piv nrog lwm cov polymers hauv cov ntawv thov ntim khoom sib txuas
Kev sib piv nrog cov dej cawv polyvinyl (PVA): PVA kuj yog siv cov dej-soluble polymer adhesive tivthaiv. Qhov zoo ntawm PVA yog nws tus nqi qis, tab sis nws tsis zoo li nvp homopolymer hauv dej tsis kam thiab adhesion rau cov chaw tsis-polar. Piv txwv li, nyob rau hauv ib puag ncig noo, lub zog ntawm Pva-raws cov nplaum yuav poob sai, thaum NVP homopolymer-raws cov nplaum muaj peev xwm nyob tau yooj yim. Hauv kev sim ua PP ntawm PP plastics, lub zog sib txuas ntawm nvp homopoler yog kwv yees li 40% siab dua li ntawm PVA-based nplaum.
Piv nrog acrylic polymers: acrylic polymer pleev xim feem ntau muaj lub siab sib luag, tab sis lawv cov kev ua tau zoo yuav cuam tshuam hauv qee qhov chaw tshwj xeeb (xws li kub thiab av noo). NVP homopolymer-raws cov nplaum muaj cov ruaj khov zoo dua hauv qhov kub thiab txias thiab huab cua siab ib puag ncig. Tsis tas li ntawd, mlom polymers yuav muaj qee cov teeb meem tsw ntxhiab, thiab lawv daim ntawv thov hauv cov chaw ntim khoom noj muaj tsawg. NVP homopolymer-raws cov nplaum tsis muaj qhov teeb meem no thiab muaj kev nyab xeeb zoo dua thiab siv tau.
Piv nrog polyurethane (PU): PU) Pu cov nplaum tau zoo dua cov txiaj ntsig zoo, tab sis tus nqi yog qhov siab thiab txoj kev npaj ua tiav. Hauv qee cov ntawv thov ntim khoom siv, kev ua yeeb yam ntawm NVP homopolymer tuaj yeem ze rau ntawm PU cov nplaum, thiab tus nqi yog qhov yooj yim dua. Piv txwv li, hauv thawv ntim ntim ntawm cov khoom lag luam txhua hnub, nvp homopoler-raws li cov nplaum sib xws thaum txo cov nqi los ntawm 20% {}}}%.
Qhov cuam tshuam ntawm NVP homopolers ntawm kev ntim ntau lawm
Cov txheej txheem txheej txheej: Vim nws cov dej solubility thiab viscosity dab neeg cov nplaum muaj cov khoom sib txawv dua li cov khoom nplaum. Thaum siv cov menyuam txheej txheej cov menyuam, qhov ceev thiab siab ntawm cov menyuam yuav tsum tau hloov kho kom paub tseeb tias cov nplaum yog tusyees cohated. Feem ntau hais lus, txheej txheej ceev ntawm nvp homopolymer tuaj yeem nrawm dua qee qhov high-viscosity tsoos, uas txhim kho ntau dua kev ua tau zoo. Piv txwv li, hauv yas zaj duab xis ntim cov kab ntau ntau lawm, tom qab cov nplaum ua kom nce los ntawm tus thawj 10 metres ib feeb, thiab cov khoom siv kom zoo dua qub.
Qhov mob ziab khaub ncaws: Vim tias cov dej solubility ntawm nv hompolers, tus nqi volatilization thaum lub sijhawm nplaum yuav cuam tshuam rau zaj duab xis zoo thiab lub zog ua kom muaj zog. Hais txog kom qhuav txias, qhov haum kub yog 50 degree - 70 degree. Tsawg heev kub yuav ncua lub sij hawm qhuav, thaum muaj qhov kub dhau heev yuav ua rau muaj kev sib tw sai sai, thiab kev ua npuas dej sab hauv sai sai, ua npuas los yog ua npuas. Hais txog lub sijhawm qhuav, piv nrog qee cov kuab tshuaj organic, feem ntau yog cov nplaum kom zoo dua qub), uas yog qhov zoo rau kev txhim kho cov kab ua haujlwm ntau.
Yuav tsum yuav tsum tau cia: NVP homopolymer yuav tsum tau muab cia rau hauv qhov chaw txias thiab qhuav, tsis txhob muaj kev kub ntxhov thiab kub ib puag ncig. Qhov chaw cia kub feem ntau tswj tau ntawm 5 degree - 30 degree. Tsis pub dhau qhov no, kev ua yeeb yam ntawm cov nplaum tuaj yeem ruaj khov rau ntau tshaj 6 lub hlis. Yog tias qhov chaw khaws cia tsis raug, nws yuav ua rau muaj kev cuam tshuam ntawm nvp homopoler lossis kev hloov ntawm polymerization degree, cuam tshuam rau lub zog polymerization, cuam tshuam rau kev sib raug zoo. Piv txwv li, yog khaws cia kub (tshaj 40 degree) rau lub sijhawm ntev, lub viscosity ntawm lub zog yuav txo qis los ntawm 10% {}}%.
Cov kev cov nyom thiab cov kev daws teeb meem hauv cov ntawv thov
Them Kev Sib Tw: Cov nqi tsim ntawm NVP homopolymer yog tus nqi ntawm nVP homopolymer-based nplaum 20%}% kim dua li qee cov nplaum tsoos. Ib qho kev daws teeb meem yog txhawm rau txhawm rau txhim kho cov txheej txheem ntau lawm, txhim kho cov synthesis tawm los ntawm nvp homopolymer, thiab txo cov khoom ntawm cov ntaub ntawv raw. Piv txwv li, kev siv cov catalysts tshiab lossis txhim kho polymerization cov tshuaj tiv thaiv tuaj yeem nce cov txiaj ntsig los ntawm tus thawj 70% rau 85%, txo tus nqi. Tsis tas li ntawd, los ntawm cov kev tsim khoom loj, khoom siv nyiaj txo qis thiab cov nqi zog tuaj yeem sib qhia, uas tuaj yeem txo cov nqi hauv cov khoom lag luam.
Kev sib tw sib xyaw: Cov teeb meem sib piv nrog lwm cov khoom siv ntxiv (xws li cov yas thiab cov fillers). Qee cov tshuab yas tuaj yeem cuam tshuam nrog nvp homopolers thiab txo lub zog ua kom muaj zog. Kev daws teeb meem yog ua kom muaj kev ntsuas txaus ntawm lub cuab tsim qauv theem. Piv txwv li, los ntawm kev hloov hom thiab cov roj yas, siv cov tshuab yas nrog cov qauv molecular uas tau zoo li cov ntsiab lus yooj yim, sib xyaw tuaj yeem hloov kho. Rau cov fillers, xaiv cov ntsaws uas tau raug kho cov chaw saum npoo (xws li cov neeg ua kom sib luag nrog NVP homopolymer thiab tsis txhob txo txoj kev sib raug zoo.
Cov kev sib tw nyuaj: nyob rau hauv cov chaw xws li ntim zaub mov, cov cai muaj nruj yuav tsum tau ua rau muaj cov nplaum ruaj ntseg. NVP homopolers yuav tsum dhau ntawm cov kev ntsuam xyuas toxicology thiab kev kawm tsiv teb tsaws chaw. Qhov kev daws teeb meem yog kom ua raws li cov kev tswj hwm cov kev tswj hwm uas muaj feem cuam tshuam rau cov qauv kev tshawb fawb thiab cov txheej txheem ntau lawm, xws li FDA (Asmeskas Khoom Noj Khoom Haus thiab Tshuaj Yeeb Tshuaj rau cov ntaub ntawv sib ze. Nruj me ntsis tswj cov kev coj dawb huv ntawm nvp homopolers, txo cov ntsiab lus tsis huv, thiab ua kom nws muaj kev nyab xeeb hauv kev siv cov ntawv thov. Nyob rau tib lub sijhawm, tsim kom tiav cov txheej txheem tswj zoo kom ua tiav thiab ntsuas txhua pob ntawm cov khoom kom ua raws li kev cai tswj hwm.
Kev Lag Luam Kev Ua Lag Luam thiab Kev Loj Hlob Loj
Nrog rau qhov kev thov nce qib siab rau cov khoom ua tau zoo hauv kev lag luam ntim kev lag luam, nvp homopolymer-raws cov nplaum muaj kev lag luam dav. Nws cia siab tias nws txoj kev nce qib kev ua lag luam yuav ncav cuag 8% - 10% hauv 5 xyoos tom ntej. Nyob rau hauv high-kawg teb xws li ntim khoom noj thiab cov ntaub ntawv ntim khoom, daim ntawv thov ntawm NVP homopolymer yuav txuas ntxiv mus nthuav, hloov qee cov nplaum tsoos. Nyob rau tib lub sijhawm, nrog kev txhim kho ntawm kev tiv thaiv ib puag ncig, cov nplaum tiv thaiv NVP homopolymer ua rau nws cov khoom lag luam ib puag ncig ua lag luam tshaj cov kuab tshuaj organic.
Nyob rau hauv cov nqe lus ntawm kev tsim kho thev naus laus zis, qauv molecular ntawm nvp homopalizers yuav raug tsim mus ntxiv los ntawm kev hloov kho tshiab xws li copolymerization thiab grafting. Piv txwv li, copolymerization nrog acrylates tuaj yeem ua ke qhov zoo ntawm ob qho tib si thiab txhim kho kev ua haujlwm zoo ntawm cov nplaum. Nyob rau tib lub sijhawm, ntxiv dag zog rau cov kev tshawb fawb ntawm cov txheej txheem ntawm nvp homopoler-raws cov nplaum yuav muab cov kev tsim nyog rau kev tsim qauv thiab daim ntawv thov.
Tag
Xyoo 1992,Zhejiang sunflower Tshiab Khoom Co., Ltd.Lub seedecessor ntawm lub tuam txhab, tau tsim, tshwj xeeb hauv PVP ntau lawm. Yawg Wu Jiaxiang, tus thawj kws tshaj lij ntawm National PVP R & D project, tau ua haujlwm raws li tus thawj tswj hwm. Xyoo 2002, lub tuam txhab tau rov kho mus rau hauv kev lag luam ntiag tug thiab tsim Hangzhou paj noob hlis Technology Kev Tsim Kho Co., Ltd. (STD), txuas ntxiv mus koom rau hauv R & D thiab tsim cov PVP Series APIS thiab Cov Khoom Kho Mob.
Nyob rau hauv cov thawj coj ntawm wu jiaxiang, lub cej luam tseem ceeb ntawm cov txheej txheem ntawm R & D, kev xyaum ntawm tus kws tshaj lij thiab kev lag luam txij xyoo 1979.
Peb txoj kev ua lag luam lub tswv yim yog: "Innovation raws li lub hauv paus, kev pabcuam raws li lub hauv paus".
Peb cov khoom lag luam cov khoom lag luam yog: kev siv, kev tshaj lij, kev ua kom zoo dua thiab muaj kev ruaj ntseg.
Kev txheeb xyuas cov tshuaj ntsuam thiab tshawb fawb ntau, nvp homopolymers qhia tau lub peev xwm los txhim kho lub zog uas muaj zog hauv kev siv lub zog. Nws cov qauv tshuaj tshwj xeeb muab rau nws muaj peev xwm los ua kom muaj kev sib cuam tshuam nrog ntau yam ntawm cov khoom ntim ntim, thiab kev sim ua ntej tau lees paub qhov zoo ntawm kev sib tw muaj zog. Txawm hais tias nws ntsib cov kev cov nyom xws li tus nqi, sib xyaw thiab cov cai hauv kev siv tau yooj yim, lawv tuaj yeem kov yeej maj mam dhau los ntawm kev daws teeb meem. Nyob rau hauv cov nqe lus ntawm kev ua lag luam cov zeem muag, nvp homopolymer-raws cov nplaum muaj qhov chaw loj dua vim tias lawv ua tau raws li kev tiv thaiv kev ua haujlwm siab thiab ib puag ncig. Yog li ntawd, nvp homopolymer tuaj yeem txhim kho txoj kev sib koom ua lub zog, muab qhov kev xaiv tshiab thiab muaj zog rau kev lag luam ntim khoom. Nrog kev nce qib nruam ntawm thev naus laus zis thiab cov ntaub ntawv tob, nws tus nqi hauv lub teb ntim ntim ntxiv.