Kab lus no yuav txheeb xyuas cov khoom tseem ceeb hauv Tuam Tshoj C3 kev lag luam saw thiab cov kev tshawb fawb thiab kev loj hlob tam sim no ntawm kev siv tshuab.

(1)Cov xwm txheej tam sim no thiab kev txhim kho Trends ntawm Polypropylene (PP) Technology

Raws li peb qhov kev tshawb nrhiav, muaj ntau txoj hauv kev los tsim polypropylene (PP) hauv Suav teb, cov txheej txheem tseem ceeb tshaj plaws suav nrog cov txheej txheem hauv tsev ib puag ncig cov yeeb nkab, Unipol txheej txheem ntawm Daoju Company, Spheriol txheej txheem ntawm LyondellBasell Company, Innovene txheej txheem ntawm Ineos tuam txhab, Novolen txheej txheem ntawm Nordic Chemical Company, thiab Spherizone txheej txheem ntawm LyondellBasell Company.Cov txheej txheem no kuj tau txais los ntawm Suav PP cov lag luam.Cov thev naus laus zis no feem ntau tswj cov kev hloov pauv ntawm propylene hauv thaj tsam ntawm 1.01-1.02.

Cov txheej txheem hauv lub nplhaib yeeb nkab siv tus kheej tsim ZN catalyst, tam sim no yeej los ntawm lub thib ob-tiam nplhaib yeeb nkab txheej txheem thev naus laus zis.Cov txheej txheem no yog tsim los ntawm nws tus kheej tsim catalysts, asymmetric electron donor technology, thiab propylene butadiene binary random copolymerization technology, thiab tuaj yeem tsim homopolymerization, ethylene propylene random copolymerization, propylene butadiene random copolymerization, thiab cuam tshuam resistant copolymerization PP.Piv txwv li, cov tuam txhab xws li Shanghai Petrochemical Thib Peb Kab, Zhenhai Refining thiab Chemical First and Second Lines, thiab Maoming Second Line tau siv tag nrho cov txheej txheem no.Nrog rau kev nce ntawm cov chaw tsim khoom tshiab yav tom ntej, cov txheej txheem thib peb ib puag ncig cov yeeb nkab yuav tsum maj mam dhau los ua cov txheej txheem tseem ceeb hauv tsev ib puag ncig.

Cov txheej txheem Unipol tuaj yeem ua lag luam tsim homopolymers, nrog rau qhov dej ntws (MFR) ntau ntawm 0.5 ~ 100g / 10min.Tsis tas li ntawd, qhov loj feem ntawm ethylene copolymer monomers hauv random copolymer tuaj yeem ncav cuag 5.5%.Cov txheej txheem no tseem tuaj yeem tsim cov khoom lag luam random copolymer ntawm propylene thiab 1-butene (lub npe lag luam CE-FOR), nrog rau cov roj hmab loj feem ntau txog 14%.Qhov loj feem ntawm ethylene nyob rau hauv qhov cuam tshuam copolymer uas tsim los ntawm Unipol txheej txheem tuaj yeem ncav cuag 21% (qhov loj ntawm cov roj hmab yog 35%).Cov txheej txheem tau siv nyob rau hauv cov chaw ntawm kev lag luam xws li Fushun Petrochemical thiab Sichuan Petrochemical.

Cov txheej txheem Innovene tuaj yeem tsim cov khoom lag luam homopolymer nrog ntau yam ntawm cov dej ntws ntws (MFR), uas tuaj yeem ncav cuag 0.5-100g / 10min.Nws cov khoom toughness yog siab dua li ntawm lwm cov roj-theem polymerization txheej txheem.MFR ntawm random copolymer khoom yog 2-35g / 10min, nrog ib tug loj feem ntawm ethylene li ntawm 7% mus rau 8%.MFR ntawm cov khoom tiv thaiv copolymer yog 1-35g / 10min, nrog rau feem ntau ntawm ethylene li ntawm 5% mus rau 17%.

Tam sim no, cov thev naus laus zis ntau lawm ntawm PP hauv Suav teb yog qhov paub tab heev.Noj roj raws li cov tuam txhab polypropylene ua piv txwv, tsis muaj qhov sib txawv tseem ceeb hauv kev tsim khoom siv, cov nqi ua haujlwm, cov txiaj ntsig, thiab lwm yam ntawm txhua lub lag luam.Los ntawm qhov kev xav ntawm pawg ntau lawm them los ntawm cov txheej txheem sib txawv, cov txheej txheem tseem ceeb tuaj yeem npog tag nrho cov khoom lag luam.Txawm li cas los xij, xav txog cov khoom tsim tawm tiag tiag ntawm cov lag luam uas twb muaj lawm, muaj qhov sib txawv tseem ceeb hauv PP cov khoom lag luam ntawm cov tuam txhab sib txawv vim muaj cov yam ntxwv xws li thaj chaw, kev teeb meem thev naus laus zis, thiab cov khoom siv raw.

(2)Cov xwm txheej tam sim no thiab kev txhim kho Trends ntawm Acrylic Acid Technology

Acrylic acid yog ib qho tseem ceeb ntawm cov organic chemical raw khoom siv dav hauv kev tsim cov nplaum thiab cov dej-soluble coatings, thiab kuj feem ntau ua tiav rau hauv butyl acrylate thiab lwm yam khoom.Raws li kev tshawb fawb, muaj ntau yam txheej txheem ntau lawm rau acrylic acid, nrog rau chloroethanol txoj kev, cyanoethanol txoj kev, high-pressure Reppe txoj kev, enone txoj kev, txhim kho Reppe txoj kev, formaldehyde ethanol txoj kev, acrylonitrile hydrolysis txoj kev, ethylene txoj kev, propylene oxidation txoj kev, thiab lom. txoj kev.Txawm hais tias muaj ntau yam kev npaj rau acrylic acid, thiab feem ntau ntawm lawv tau siv rau hauv kev lag luam, cov txheej txheem tseem ceeb tshaj plaws thoob ntiaj teb tseem yog qhov ncaj qha oxidation ntawm propylene rau acrylic acid txheej txheem.

Cov khoom siv raw rau kev tsim cov acrylic acid los ntawm propylene oxidation feem ntau muaj xws li dej vapor, huab cua, thiab propylene.Thaum lub sij hawm tsim cov txheej txheem, peb cov kev cuam tshuam oxidation los ntawm lub txaj catalyst hauv ib qho kev faib ua feem.Propylene yog thawj oxidized rau acrolein nyob rau hauv thawj reactor, thiab ces ntxiv oxidized rau acrylic acid nyob rau hauv lub thib ob reactor.Dej vapor plays lub luag haujlwm dilution hauv cov txheej txheem no, zam qhov tshwm sim ntawm kev tawg thiab suppressing tiam ntawm cov kev tshwm sim sab.Txawm li cas los xij, ntxiv rau kev tsim cov acrylic acid, cov txheej txheem tshuaj tiv thaiv no kuj tsim cov acetic acid thiab carbon oxides vim muaj kev cuam tshuam sab.

Raws li Pingtou Ge qhov kev tshawb nrhiav, tus yuam sij rau cov txheej txheem acrylic acid oxidation yog nyob rau hauv kev xaiv cov catalysts.Tam sim no, cov tuam txhab uas tuaj yeem muab cov cuab yeej acrylic acid los ntawm propylene oxidation suav nrog Sohio hauv Tebchaws Meskas, Nyiv Catalyst Chemical Company, Mitsubishi Chemical Company hauv Nyij Pooj, BASF hauv Tebchaws Yelemees, thiab Nyiv Chemical Technology.

Cov txheej txheem Sohio hauv Tebchaws Meskas yog cov txheej txheem tseem ceeb rau kev tsim cov kua qaub acrylic los ntawm propylene oxidation, tus cwj pwm los ntawm ib txhij qhia propylene, cua, thiab dej vapor rau hauv ob txoj kab txuas txuas ruaj khov reactors, thiab siv Mo Bi thiab Mo-V multi-component hlau. oxides raws li catalysts, feem.Raws li txoj kev no, ib txoj kev tawm los ntawm acrylic acid tuaj yeem ncav cuag li 80% (molar ratio).Qhov kom zoo dua ntawm txoj kev Sohio yog tias ob lub reactors tuaj yeem ua rau lub neej ntawm cov catalyst nce mus txog 2 xyoos.Txawm li cas los xij, txoj kev no muaj qhov tsis zoo uas tsis muaj propylene tsis tuaj yeem rov qab los.

BASF txoj kev: Txij li thaum xyoo 1960s, BASF tau tshawb fawb txog kev tsim cov acrylic acid los ntawm propylene oxidation.BASF txoj kev siv Mo Bi los yog Mo Co catalysts rau propylene oxidation cov tshuaj tiv thaiv, thiab ib txoj kev tawm los ntawm acrolein tau tuaj yeem ncav cuag li 80% (molar ratio).Tom qab ntawd, siv Mo, W, V, thiab Fe raws li catalysts, acrolein tau ntxiv oxidized rau acrylic acid, nrog rau qhov siab tshaj plaws ntawm ib txoj kev tawm los ntawm 90% (molar ratio).Lub neej catalyst ntawm BASF txoj kev tuaj yeem ncav cuag 4 xyoo thiab cov txheej txheem yooj yim.Txawm li cas los xij, txoj kev no muaj qhov tsis zoo xws li cov kuab tshuaj kub kub siab, kev tu cov cuab yeej nquag, thiab kev siv zog tag nrho.

Japanese catalyst txoj kev: Ob lub reactors ruaj nyob rau hauv series thiab ib tug sib xws xya ntauwd sib cais system kuj siv.Thawj kauj ruam yog infiltrate lub caij Co rau hauv Mo Bi catalyst raws li cov tshuaj tiv thaiv catalyst, thiab tom qab ntawd siv Mo, V, thiab Cu composite hlau oxides ua lub ntsiab catalysts nyob rau hauv lub thib ob reactor, txhawb los ntawm silica thiab lead monoxide.Raws li cov txheej txheem no, ib txoj kev tawm los ntawm acrylic acid yog kwv yees li 83-86% (molar ratio).Cov txheej txheem Japanese catalyst txais yuav ib lub txaj ruaj khov reactor thiab 7-ntauwd sib cais system, nrog cov catalysts siab, siab tag nrho cov txiaj ntsig, thiab kev siv hluav taws xob tsawg.Txoj kev no yog tam sim no ib qho ntawm cov txheej txheem ntau lawm, nrog rau cov txheej txheem Mitsubishi hauv Nyiv.

(3)Cov xwm txheej tam sim no thiab kev loj hlob Trends ntawm Butyl Acrylate Technology

Butyl acrylate yog cov kua dej tsis muaj xim uas tsis muaj kuab lom hauv dej thiab tuaj yeem sib xyaw nrog ethanol thiab ether.Cov khoom sib xyaw no yuav tsum tau muab khaws cia rau hauv qhov chaw txias thiab cua txias.Acrylic acid thiab nws cov esters tau siv dav hauv kev lag luam.Lawv tsis tsuas yog siv los tsim cov monomers mos ntawm acrylate hnyav raws li cov nplaum nplaum, tab sis kuj tuaj yeem ua homopolymerized, copolymerized thiab graft copolymerized los ua polymer monomers thiab siv los ua cov organic synthesis intermediates.

Tam sim no, cov txheej txheem tsim khoom ntawm butyl acrylate feem ntau cuam tshuam nrog cov tshuaj tiv thaiv ntawm acrylic acid thiab butanol nyob rau hauv lub xub ntiag ntawm toluene sulfonic acid los tsim butyl acrylate thiab dej.Cov tshuaj tiv thaiv esterification koom nrog hauv cov txheej txheem no yog cov tshuaj tiv thaiv rov qab, thiab cov ntsiab lus kub ntawm acrylic acid thiab cov khoom butyl acrylate yog ze heev.Yog li ntawd, nws yog ib qho nyuaj rau cais acrylic acid siv distillation, thiab unreacted acrylic acid tsis tuaj yeem siv dua.

Cov txheej txheem no hu ua butyl acrylate esterification method, feem ntau yog los ntawm Jilin Petrochemical Engineering Research Institute thiab lwm lub koom haum.Cov thev naus laus zis no twb paub tab heev, thiab chav tswj kev noj zaub mov rau acrylic acid thiab n-butanol yog qhov tseeb heev, muaj peev xwm tswj tau lub tsev noj hauv 0.6.Ntxiv mus, cov cuab yeej no twb tau ua tiav kev koom tes thiab hloov pauv.

(4)Cov xwm txheej tam sim no thiab kev loj hlob Trends ntawm CPP Technology

CPP zaj duab xis yog tsim los ntawm polypropylene ua cov khoom siv tseem ceeb los ntawm kev ua haujlwm tshwj xeeb xws li T-shaped tuag extrusion casting.Cov yeeb yaj kiab no muaj cov cua sov ua haujlwm zoo heev thiab, vim nws qhov kev ua kom txias sai sai, tuaj yeem tsim tau zoo heev smoothness thiab pob tshab.Yog li ntawd, rau cov ntawv ntim khoom uas xav tau kom meej meej, CPP zaj duab xis yog cov khoom nyiam.Kev siv ntau tshaj plaws ntawm CPP zaj duab xis yog nyob rau hauv cov khoom ntim khoom noj, nrog rau kev tsim cov txheej txheem aluminium, ntim tshuaj, thiab khaws cia cov txiv hmab txiv ntoo thiab zaub.

Tam sim no, cov txheej txheem ntau lawm ntawm CPP zaj duab xis yog feem ntau co extrusion casting.Cov txheej txheem kev tsim khoom no muaj ntau yam extruders, ntau channel distributors (feem ntau hu ua "feeders"), T-shaped tuag hau, casting systems, kab rov tav traction systems, oscillators, thiab winding systems.Cov yam ntxwv tseem ceeb ntawm cov txheej txheem no yog qhov zoo ntawm glossiness, siab flatness, me thickness kam rau ua, zoo mechanical extension kev ua tau zoo, zoo yooj, thiab zoo transparency ntawm cov khoom nyias nyias.Cov tuam txhab lag luam thoob ntiaj teb feem ntau ntawm CPP siv co extrusion casting txoj kev rau kev tsim khoom, thiab cov cuab yeej siv tshuab tau paub tab.

Txij li thaum nruab nrab xyoo 1980s, Tuam Tshoj tau pib qhia cov khoom siv ua yeeb yaj kiab txawv teb chaws, tab sis feem ntau ntawm lawv yog cov txheej txheem ib leeg thiab koom rau hauv thawj theem.Tom qab nkag mus rau xyoo 1990, Tuam Tshoj tau qhia ntau txheej txheej co polymer cam khwb cia cov kab ntau lawm los ntawm cov teb chaws xws li lub teb chaws Yelemees, Nyiv, Ltalis, thiab Austria.Cov khoom siv thiab thev naus laus zis tuaj txawv teb chaws yog lub zog tseem ceeb ntawm Tuam Tshoj txoj kev lag luam cam khwb cia.Cov khoom siv tseem ceeb suav nrog Lub Tebchaws Yelemees Bruckner, Bartenfield, Leifenhauer, thiab Austria's Orchid.Txij li xyoo 2000, Tuam Tshoj tau tshaj tawm cov kab ntau lawm, thiab cov khoom siv hauv tsev kuj tau ntsib txoj kev loj hlob sai.

Txawm li cas los xij, piv nrog rau qib siab thoob ntiaj teb, tseem muaj qee qhov sib txawv hauv qib automation, hnyav tswj extrusion system, tsis siv neeg tuag lub taub hau hloov kho cov yeeb yaj kiab tuab, hauv online ntug cov ntaub ntawv rov qab, thiab tsis siv neeg winding ntawm domestic casting zaj duab xis khoom.Tam sim no, cov khoom siv tseem ceeb rau CPP zaj duab xis thev naus laus zis suav nrog Lub Tebchaws Yelemees Bruckner, Leifenhauser, thiab Austria's Lanzin, thiab lwm yam.Cov neeg xa khoom txawv teb chaws no muaj qhov zoo ntawm cov khoom siv hluav taws xob thiab lwm yam.Txawm li cas los xij, cov txheej txheem tam sim no twb paub lawm, thiab kev txhim kho ceev ntawm cov cuab yeej siv tshuab qeeb, thiab tsis muaj qhov pib rau kev koom tes.

(5)Cov xwm txheej tam sim no thiab kev txhim kho Trends ntawm Acrylonitrile Technology

Propylene ammonia oxidation technology yog tam sim no txoj kev lag luam tseem ceeb rau acrylonitrile, thiab yuav luag txhua lub tuam txhab acrylonitrile siv BP (SOHIO) catalysts.Txawm li cas los xij, kuj tseem muaj ntau lwm tus neeg muab kev pabcuam los xaiv, xws li Mitsubishi Rayon (yav tas los Nitto) thiab Asahi Kasei los ntawm Nyiv, Ascend Performance Material (yav tas los Solutia) los ntawm Tebchaws Meskas, thiab Sinopec.

Ntau tshaj 95% ntawm cov nroj tsuag acrylonitrile thoob ntiaj teb siv propylene ammonia oxidation technology (tseem hu ua txheej txheem sohio) pioneered thiab tsim los ntawm BP.Cov thev naus laus zis no siv propylene, ammonia, cua, thiab dej ua cov khoom siv raw, thiab nkag mus rau lub reactor hauv ib qho kev faib ua feem.Nyob rau hauv qhov kev txiav txim ntawm phosphorus molybdenum bismuth los yog antimony hlau catalysts txhawb silica gel, acrylonitrile yog generated ntawm ib tug kub ntawm 400-500.℃thiab atmospheric siab.Tom qab ntawd, tom qab ua haujlwm nruab nrab, nqus, rho tawm, dehydrocyanation, thiab cov txheej txheem distillation, cov khoom kawg ntawm acrylonitrile tau txais.Ib txoj kev tawm los ntawm txoj kev no tuaj yeem ncav cuag 75%, thiab cov khoom lag luam muaj xws li acetonitrile, hydrogen cyanide, thiab ammonium sulfate.Txoj kev no muaj cov khoom lag luam ntau tshaj plaws.

Txij li xyoo 1984, Sinopec tau kos npe rau daim ntawv cog lus ntev nrog INEOS thiab tau tso cai siv INEOS's patented acrylonitrile technology hauv Suav teb.Tom qab xyoo ntawm txoj kev loj hlob, Sinopec Shanghai Petrochemical tshawb fawb lub koom haum tau ntse tsim ib txoj kev rau propylene ammonia oxidation los tsim acrylonitrile, thiab tsim lub thib ob theem ntawm Sinopec Anqing ceg 130000 tuj acrylonitrile project.Qhov project tau ua tiav rau lub Ib Hlis 2014, ua kom muaj peev xwm tsim tau txhua xyoo ntawm acrylonitrile los ntawm 80000 tons rau 210000 tons, dhau los ua ib feem tseem ceeb ntawm Sinopec's acrylonitrile ntau lawm puag.

Tam sim no, cov tuam txhab thoob ntiaj teb nrog patents rau propylene ammonia oxidation tshuab suav nrog BP, DuPont, Ineos, Asahi Chemical, thiab Sinopec.Cov txheej txheem tsim khoom no yog paub tab thiab yooj yim kom tau, thiab Tuam Tshoj kuj tau ua tiav qhov chaw ntawm cov thev naus laus zis no, thiab nws qhov kev ua tau zoo tsis yog qis dua rau cov khoom siv txawv teb chaws.

(6)Cov xwm txheej tam sim no thiab kev txhim kho Trends ntawm ABS Technology

Raws li kev tshawb nrhiav, cov txheej txheem ntawm ABS cov cuab yeej feem ntau muab faib ua cov tshuaj pleev plhu thiab cov txheej txheem txuas ntxiv.ABS resin tau tsim los ntawm kev hloov kho ntawm polystyrene resin.Xyoo 1947, lub tuam txhab Asmeskas roj hmab tau txais cov txheej txheem sib xyaw kom ua tiav kev lag luam ntawm ABS resin;Xyoo 1954, BORG-WAMER Lub Tuam Txhab hauv Tebchaws Meskas tau tsim cov tshuaj pleev plhu polymerized ABS cob thiab paub txog kev tsim khoom lag luam.Cov tsos ntawm cov tshuaj pleev plhu tau txhawb txoj kev loj hlob sai ntawm ABS kev lag luam.Txij li thaum xyoo 1970, cov txheej txheem tsim khoom ntawm ABS tau nkag mus rau lub sijhawm ntawm kev loj hlob zoo.

Cov tshuaj pleev plhu grafting yog txheej txheem ntau lawm, uas suav nrog plaub theem: kev sib xyaw ntawm butadiene latex, kev sib xyaw ntawm graft polymer, kev sib xyaw ntawm styrene thiab acrylonitrile polymers, thiab kev sib xyaw tom qab kho.Cov txheej txheem tshwj xeeb suav nrog PBL unit, grafting unit, SAN unit, thiab blending unit.Cov txheej txheem ntau lawm no muaj qib siab thev naus laus zis kom loj hlob thiab tau siv dav thoob ntiaj teb.

Tam sim no, kev paub tab ABS thev naus laus zis feem ntau yog los ntawm cov tuam txhab xws li LG hauv Kaus Lim Qab Teb, JSR hauv Nyij Pooj, Dow hauv Tebchaws Meskas, New Lake Oil Chemical Co., Ltd. hauv Kaus Lim Qab Teb, thiab Kellogg Technology hauv Tebchaws Meskas, tag nrho cov uas muaj lub ntiaj teb thawj theem ntawm kev loj hlob ntawm technology.Nrog kev txhim kho txuas ntxiv ntawm thev naus laus zis, cov txheej txheem tsim khoom ntawm ABS kuj tseem txhim kho thiab txhim kho tas li.Nyob rau hauv lub neej yav tom ntej, kev ua haujlwm zoo dua qub, ib puag ncig tus phooj ywg, thiab cov txheej txheem tsim khoom txuag hluav taws xob tuaj yeem tshwm sim, ua rau muaj kev sib tw ntau dua rau kev txhim kho kev lag luam tshuaj.

(7)Cov xwm txheej thiab kev loj hlob ntawm n-butanol

Raws li kev soj ntsuam, cov thev naus laus zis tseem ceeb rau kev sib txuas ntawm butanol thiab octanol thoob ntiaj teb yog cov txheej txheem ua kua-theem cyclic low-pressure carbonyl synthesis.Cov ntaub ntawv tseem ceeb rau cov txheej txheem no yog propylene thiab synthesis gas.Ntawm lawv, propylene feem ntau yog los ntawm kev sib koom ua ke ntawm tus kheej, nrog rau chav noj ntawm propylene ntawm 0.6 thiab 0.62 tons.Cov roj hluavtaws feem ntau yog npaj los ntawm cov pa hluav taws xob lossis cov roj hluav taws xob uas siv hluav taws xob, nrog ib chav noj ntawm 700 thiab 720 cubic meters.

Lub tshuab hluav taws xob qis carbonyl synthesis tsim los ntawm Dow / David - cov txheej txheem ua kua-theem muaj qhov zoo xws li kev hloov pauv ntawm propylene siab, lub neej ua haujlwm ntev, thiab txo qis emissions ntawm peb qhov pov tseg.Cov txheej txheem no tam sim no yog cov cuab yeej siv ntau tshaj plaws thiab tau siv dav hauv Suav butanol thiab octanol cov lag luam.

Xav tias Dow / David thev naus laus zis kuj paub tab thiab tuaj yeem siv hauv kev koom tes nrog cov lag luam hauv tsev, ntau lub lag luam yuav ua qhov tseem ceeb rau cov cuab yeej no thaum xaiv los nqis peev hauv kev tsim kho ntawm butanol octanol units, ua raws li kev siv tshuab hauv tsev.

(8)Cov xwm txheej tam sim no thiab kev loj hlob Trends ntawm Polyacrylonitrile Technology

Polyacrylonitrile (PAN) yog tau los ntawm dawb radical polymerization ntawm acrylonitrile thiab yog ib qho tseem ceeb nruab nrab ntawm kev npaj ntawm acrylonitrile fibers (acrylic fibers) thiab polyacrylonitrile raws li carbon fibers.Nws tshwm nyob rau hauv daim ntawv dawb los yog daj me ntsis opaque hmoov, nrog rau iav hloov kub ntawm txog 90℃.Nws tuaj yeem yaj hauv cov kuab tshuaj organic xws li dimethylformamide (DMF) thiab dimethyl sulfoxide (DMSO), ntxiv rau hauv cov kua dej concentrated ntawm inorganic ntsev xws li thiocyanate thiab perchlorate.Kev npaj ntawm polyacrylonitrile feem ntau suav nrog kev daws teeb meem polymerization lossis aqueous nag lossis daus polymerization ntawm acrylonitrile (AN) nrog non-ionic thib ob monomers thiab ionic thib peb monomers.

Polyacrylonitrile feem ntau yog siv los tsim cov acrylic fibers, uas yog hluavtaws fibers ua los ntawm acrylonitrile copolymer nrog ib tug loj feem pua ​​ntawm ntau tshaj 85%.Raws li cov kuab tshuaj siv hauv cov txheej txheem tsim khoom, lawv tuaj yeem paub qhov txawv xws li dimethyl sulfoxide (DMSO), dimethyl acetamide (DMAc), sodium thiocyanate (NaSCN), thiab dimethyl formamide (DMF).Qhov sib txawv tseem ceeb ntawm ntau cov kuab tshuaj yog lawv cov solubility hauv polyacrylonitrile, uas tsis muaj kev cuam tshuam loj rau cov txheej txheem polymerization tshwj xeeb.Tsis tas li ntawd, raws li cov comonomers sib txawv, lawv tuaj yeem muab faib ua itaconic acid (IA), methyl acrylate (MA), acrylamide (AM), thiab methyl methacrylate (MMA), thiab lwm yam. Cov co monomers sib txawv muaj qhov sib txawv ntawm cov kinetics thiab Cov khoom siv ntawm cov tshuaj tiv thaiv polymerization.

Cov txheej txheem sib sau ua ke tuaj yeem yog ib kauj ruam lossis ob kauj ruam.Ib txoj hauv kev yog hais txog cov polymerization ntawm acrylonitrile thiab comonomers nyob rau hauv ib qho kev daws teeb meem ntawm ib zaug, thiab cov khoom tuaj yeem raug npaj ncaj qha rau hauv cov tshuaj spinning yam tsis muaj kev sib cais.Txoj cai ob-kauj ruam yog hais txog kev ncua polymerization ntawm acrylonitrile thiab comonomers hauv dej kom tau cov polymer, uas tau muab cais, ntxuav, lub cev qhuav dej, thiab lwm cov kauj ruam los tsim cov tshuaj spinning.Tam sim no, cov txheej txheem tsim khoom thoob ntiaj teb ntawm polyacrylonitrile yog qhov zoo ib yam, nrog rau qhov sib txawv ntawm cov txheej txheem hauv qab ntawm cov dej polymerization thiab co monomers.Tam sim no, feem ntau polyacrylonitrile fibers nyob rau hauv ntau lub teb chaws thoob ntiaj teb yog tsim los ntawm ternary copolymer, nrog acrylonitrile accounting rau 90% thiab ntxiv ntawm ib tug thib ob monomer li ntawm 5% mus rau 8%.Lub hom phiaj ntawm kev ntxiv cov monomer thib ob yog txhawm rau txhim kho lub zog txhua yam, elasticity, thiab kev ntxhib los mos ntawm cov fibers, nrog rau kev txhim kho dyeing kev ua tau zoo.Feem ntau siv txoj kev muaj xws li MMA, MA, vinyl acetate, thiab lwm yam. Qhov sib ntxiv ntawm qhov thib peb monomer yog 0.3% -2%, nrog rau lub hom phiaj ntawm kev qhia txog qee tus lej ntawm hydrophilic dye pawg kom muaj kev sib raug zoo ntawm fibers nrog dyes, uas yog muab faib ua cationic dye pawg thiab acidic dye pawg.

Tam sim no, Nyiv yog tus sawv cev tseem ceeb ntawm cov txheej txheem thoob ntiaj teb ntawm polyacrylonitrile, ua raws li cov teb chaws xws li lub teb chaws Yelemees thiab Tebchaws Meskas.Cov neeg sawv cev lag luam suav nrog Zoltek, Hexcel, Cytec thiab Aldila los ntawm Nyiv, Dongbang, Mitsubishi thiab Tebchaws Meskas, SGL los ntawm Lub Tebchaws Yelemees thiab Formosa Plastics Group los ntawm Taiwan, Tuam Tshoj, Tuam Tshoj.Tam sim no, lub ntiaj teb no ntau lawm txheej txheem technology ntawm polyacrylonitrile yog mature, thiab tsis muaj ntau chav rau kev txhim kho cov khoom.