Yuav Ua Li Cas Thiaj Ua Tau Yas Resin Thiab Nws Cov Kev Siv Hauv Kev Lag Luam Kev Tsim Kho
Kev lag luam yas tau loj hlob sai txij li thaum nws tau pib tsim thaum ntxov xyoo pua 20th. Ib hom yas nrov nrog ntau daim ntawv thov, tshwj xeeb tshaj yog hauv kev lag luam kev tsim kho, yog yas resin. Tsab xov xwm no yuav tham txog yuav ua li cas cov yas resin raug tsim thiab yuav ua li cas nws raug siv rau hauv ntau yam ntawm kev tsim kho.
1. Nkag Siab Txog Cov Yas Resin
Cov yas resin yog cov khoom siv polymer uas tau los ntawm cov txheej txheem polymerization tshuaj. Cov khoom siv raw rau kev ua cov resin feem ntau yog roj av. Cov resin muaj ntau yam khoom zoo dua, xws li kev tiv thaiv corrosion, lub teeb yuag, thiab malleability, ua rau nws zoo tagnrho rau ntau yam kev siv hauv kev lag luam kev tsim kho.
2. Cov Khoom Siv Rau Kev Ua Yas Resin
Ua ntej piav qhia txog cov kauj ruam rau kev ua cov yas resin, nws yog ib lub tswv yim zoo kom nkag siab txog qee cov ntaub ntawv yooj yim uas xav tau:
– Monomer: Qhov no yog cov khoom siv tseem ceeb uas yuav raug polymerization. Piv txwv ntawm cov monomers uas siv ntau yog ethylene, propylene, thiab vinyl chloride.
– Catalyst: Ib yam khoom uas ua rau cov tshuaj polymerization sai dua yam tsis muaj nws tus kheej ua haujlwm. Ib qho piv txwv ntawm cov tshuaj catalyst yog peroxide.
– Tus Pib: Cov khoom siv no pib cov txheej txheem polymerization. Ib qho pib uas feem ntau siv yog azobis isobutyronitrile (AIBN).
– Cov tshuaj ntxiv: Cov no yog cov tshuaj ntxiv uas siv los muab qee yam khoom rau cov resin, xws li lub zog lossis tiv taus hluav taws. Piv txwv li suav nrog calcium carbonate thiab fiberglass.
3. Cov Txheej Txheem Tsim Khoom Yas Resin
Muaj ntau theem tseem ceeb hauv kev tsim cov yas resin:
a. Theem Polymerization
Cov txheej txheem no yog lub plawv ntawm kev tsim cov resin, qhov twg monomers raug hloov mus ua polymers. Muaj ob txoj hauv kev tseem ceeb rau polymerization:
1. Kev Sib Txuas Ua Ke: Hauv txoj kev no, cov monomers sib xyaw ua ke los ua cov saw ntev. Cov txheej txheem sib txuas ua ke tuaj yeem ua tiav tau ob txoj hauv kev:
– Kev Ua Polymerization Dawb: Siv tus pib los pib qhov kev ua tshuaj. Txoj kev no ua haujlwm sai tab sis qee zaum tsim cov polymers uas tsis sib npaug zos.
– Anionic/Cationic Polymerization: Siv cov tshuaj ionic catalyst los pib qhov kev tshuaj tiv thaiv. Txoj kev no tsim cov polymers nrog qhov hnyav molecular sib npaug ntau dua.
2. Kev Sib xyaw ua ke ntawm cov polymers: Cov monomers ua rau muaj cov polymers thiab cov khoom seem xws li dej.
b. Theem Sau
Tom qab ua tiav cov txheej txheem polymerization, kauj ruam tom ntej yog ntxiv cov khoom sau, yog tias tsim nyog. Cov khoom sau raug sib xyaw nrog cov polymer kom muab cov yam ntxwv tshwj xeeb raws li qhov xav tau ntawm daim ntawv thov.
c. Kev Ua thiab Kev Tsim
Cov polymer uas tau los ces raug cua sov thiab pwm raws li qhov xav tau. Muaj ntau txoj kev pwm, suav nrog:
– Extrusion: Cov polymer raug cua sov kom txog thaum nws yaj thiab muab los ua daim ntawv lossis cov profile tshwj xeeb.
– Kev Txhaj Tshuaj: Cov polymer ua kua raug txhaj rau hauv pwm kom tsim cov khoom kawg.
– Kev Nias: Cov polymer raug muab tso rau hauv pwm thiab nias kom ua cov khoom.
4. Kev Siv Cov Yas Resin Hauv Kev Lag Luam Tsim Kho
Tom qab nkag siab txog cov txheej txheem ntawm kev ua cov yas resin, ntawm no yog qee qhov ntawm nws cov ntawv thov tseem ceeb hauv kev lag luam kev tsim kho:
a. Cov Khoom Siv Txhawb Nqa
Cov yas resins, tshwj xeeb tshaj yog cov uas muaj fiberglass lossis carbon fiber txhawb nqa, yog siv dav ua cov khoom siv hauv tsev xws li cov ntoo thiab cov plag tsev vim lawv lub zog tensile siab thiab qhov hnyav sib dua.
b. Txheej thiab Kev Tiv Thaiv
Piv txwv li, cov tshuaj epoxy resin yog siv los ua ib txheej los tiv thaiv cov qauv pob zeb kom tsis txhob xeb thiab tshuaj lom neeg tawm tsam. Cov txheej no kuj pab txhim kho kev tiv thaiv dej thiab ua kom lub tsev siv tau ntev.
c. Cov nplaum thiab cov khoom siv sib txuas
Cov yas resins xws li epoxy kuj feem ntau siv ua cov nplaum hauv kev tsim kho. Lawv muaj cov khoom sib txuas zoo heev, ua rau lawv muaj txiaj ntsig zoo rau kev sib txuas ntau yam khoom siv, suav nrog hlau, pob zeb, thiab ntoo.
d. Kev Tsim Cov Kav Dej thiab Cov Khoom Siv
Cov kav dej ua los ntawm cov roj hmab xws li PVC (Polyvinyl Chloride) thiab PPR (Polypropylene Random) yog siv dav hauv cov kav dej vim lawv tiv taus xeb thiab muaj peev xwm tiv taus siab.
e. Kev rwb thaiv tsev
Cov yas resins kuj siv ua cov ntaub ntawv rwb thaiv tsev, ob qho tib si thermal thiab acoustic. Piv txwv li, polystyrene ua npuas ncauj yog siv dav ua rwb thaiv tsev hauv phab ntsa thiab ru tsev.
f. Cov Khoom Kho Kom Zoo Nkauj
Cov yas resin tuaj yeem pwm ua ntau yam khoom dai xws li qab nthab cuav, phab ntsa vaj huam sib luag, thiab lwm yam khoom tsim sab hauv. Dhau li ntawm qhov yooj yim rau kev ua kom zoo nkauj, cov resin tuaj yeem muab ntau yam xim thiab cov qauv kom haum rau cov kev xav tau tsim.
5. Cov txiaj ntsig thiab kev cov nyom ntawm kev siv cov yas resin
Keuntungan
- Kev Ruaj Khov: Cov yas resin tiv taus ntau yam kev xeb, suav nrog kev xeb tshuaj lom neeg thiab dej.
– Kev Sib Nqus: Cov khoom siv no sib nqus piv rau cov khoom siv ib txwm muaj xws li hlau lossis pob zeb.
- Yooj Yim Tsim: Muaj peev xwm tsim ua ntau yam duab sib txawv raws li qhov xav tau ntawm kev tsim kho.
- Kev Siv Nyiaj Zoo: Nyob rau lub sijhawm ntev, kev siv cov yas resin tuaj yeem txo cov nqi kho thiab ua kom lub tsev siv tau ntev dua.
Kev Sib Tw
– Kev Cuam Tshuam Rau Ib Puag Ncig: Cov yas resin yog los ntawm roj av, yog li nws siv tuaj yeem ua rau cov khoom siv ntuj tsim thiab ua rau muaj kuab paug rau ib puag ncig.
– Kev Tswj Xyuas Cov Khib Nyhiab: Cov khib nyiab yas resin nyuaj rau lwj mus rau hauv av, xav tau lub kaw lus ua cov khib nyiab zoo.
– Lub Zog Modulus Qis: Hauv qee qhov kev siv, lub zog ntawm cov yas resin yuav tsis sib piv rau cov ntaub ntawv ib txwm muaj xws li hlau thiab pob zeb.
Xaus
Cov yas resin muaj ntau yam zoo thiab yooj yim siv rau ntau yam kev siv hauv kev tsim kho. Txij li cov ntaub ntawv txhawb nqa, cov tshuaj pleev xim, cov nplaum, mus rau cov khoom dai kom zoo nkauj, cov resin muaj ntau yam zoo kawg nkaus. Txawm li cas los xij, cov teeb meem cuam tshuam nrog kev cuam tshuam rau ib puag ncig thiab kev tswj hwm pov tseg yuav tsum tau daws tas li los ntawm kev tsim kho tshiab thiab thev naus laus zis. Nrog kev nkag siab zoo txog yuav ua li cas cov yas resin raug tsim thiab siv, kev lag luam kev tsim kho tuaj yeem txuas ntxiv loj hlob zoo dua thiab ruaj khov.
