Xyoo 2021, Tuam Tshoj tus Pa6 Ntau Lawm yog 5.715 lab tons, thiab nws yuav tsum tau mus txog 6.145 lab tons hauv 2022, nrog tus nqi ntawm 7.5%. Tuam Tshoj tus PA6 muaj qib siab ntawm cov chaw hauv zos. Thoob ntiaj teb, kwv yees li 55% ntawm Pa6 slices yog siv rau cov fibers, thiab txog 45% yog 4.127 lab, ntawm 20% ntawm uas siv rau kev ua tshuab plastics.
PA nylon dub cov khoom siv
Txij li 2021 txog 2022, tus nqi ntawm PA6 kuj tau mus dhau ob peb cov menyuam coaster nce thiab nce.
Nylon 6 (PA6), tseem hu ua polyamide 6, nws cov neeg kho tshuab zog thiab muaj cov yam ntxwv ntawm corrosion tsis kam, hnav tsis kam. Nws tau siv dav hauv tsheb kev lag luam ib zaug, kev hloov tsheb ciav hlau, zaj duab xis ntim, khoom siv hluav taws xob thiab textile. Txawm hais tias nws qhov kev ua tau zoo heev tau zoo heev, nws tseem muaj cov lus luv ntawm cov tsis muaj txiaj ntsig. Piv txwv li, PA6 tsis muaj cov kua qaub muaj zog thiab alkali tsis kam, thiab qhov muaj zog cuam tshuam tsis yog qhov siab kub thiab qhuav xeev. Lub neej ntawm hydrophilic puag yuav ua rau cov dej nqus dej siab dua, yog li cuam tshuam rau cov khoom lag luam seem ntawm cov khoom lag luam thiab cov khoom siv hluav taws xob ntawm cov khoom. Yog li ntawd, nws yog ib qho tsim nyog los kawm kev hloov kho ntawm PA6.
Pa6 siv hauv tsheb
PA6 siv hauv textile
- PA6 Kev Ua Haujlwm
Cov khoom siv raw ntawm PA muaj qhov dav dav, uas yog lub hauv paus ntawm nws cov loj-teev kev lag luam ntau lawm. Vim kev ua haujlwm tsis tu ncua ntawm cov qauv molecular, pa tuaj yeem ua ntau hydrogen sib khi ntawm Macromolecules, yog li nws muaj siab crystallinity. Nyob rau tib lub sijhawm, nws tseem muaj cov yam ntxwv zoo hauv cov tshuab cov tshuab, tshuaj lom neeg, cov khoom siv hluav taws xob, nrog rau:
(1) lub zog siab tensile lub zog thiab khoov rau lub zog;
(2) kev cuam tshuam zoo;
(3) kub tiv taus;
(4) Nws muaj cov yam ntxwv ntawm kev hnav-resisting thiab tus kheej lubrication, uas yog tsis txaus rau cov khoom siv hlau.
(5) o o o o rov qab tsis kam thiab corrosion tsis kam rau tshuaj lom neeg thiab tshuaj yeeb;
(6) Kev ua kom zoo txaus, muaj kev txhaj tshuaj moulding, extrusion, tshuab moulding thiab lwm txoj kev rau cov khoom lag luam;
(7) Kev ua tau zoo heev;
(8) Nrog rau cov tshuaj lom neeg siab, cov pab pawg polar muaj peev xwm hnov mob nrog cov monomers thiab polymers muaj cov pab pawg polarcer.
Txhawm rau muab PA6 cov khoom siv muaj zog dua, muaj ntau yam hloov kho cov hloov kho, feem ntau ntxiv, ntawm cov khoom ntxiv yog cov iav fiber ntau. Elastomer lossis hluavtaws roj hmab xws li Poe, SBR, lossis EPDM feem ntau ntxiv rau muab PA6 muaj zog cuam tshuam. Yog tias tsis muaj kev sib ntxiv hauv cov khoom siv xa mus rau ntawm PA6, cov khoom siv yas yas muaj cov tshuaj pleev ib ce ntawm 1% li ntawm 0.3%. Ntawm lawv, kev nqus dej noo thiab crystallinity ntawm cov khoom siv ntawm cov hluav taws xob sib dhos, thiab cov txheej txheem tuab phab ntsa kuj muaj kev sib raug zoo nrog tus nqi shrinkage.
Iav Fiber
POE Elastomer
Kev kho kom qhuav ntawm PA6 kev txhaj tshuaj molding yog yog li nws yuav tsum tau txuas qhov tseem ceeb rau kev kho kom qhuav ua ntej ua haujlwm tiag. Yog tias cov khoom siv xa khoom yog qhwv hauv cov khoom siv dej, lub ntim yuav tsum tau tswj hwm hauv lub xeev kaw. Thaum cov av noo ntau dua 0.2%, huab cua kub yuav tsum tau xaiv rau kom qhuav qhuav ntawm tsis pub tsawg tshaj 80 ℃ rau 16H; Yog tias cov khoom siv tau rau saum huab cua kom tsawg kawg yog 8H, nws yuav tsum tau qhuav ntawm 105 ℃ rau ntau tshaj 8h.
- Cov txheej txheem ntau lawm ntawm PA6
1.Two-theem polymerization
Ob-theem polymerization feem ntau muab faib ua ob theem: pem hauv ntej polymerization thiab rov qab polymerization. Feem ntau, nws yog qhov tsim nyog rau cov khoom lag luam siab viscosity xws li cov kab kev lag luam ntaub. Ob-theem polymerization feem ntau suav nrog peb txoj kev: Pre-essurression polymerization thiab tom qab siab-siab polymerization. Ntawm lawv, tus txheej txheem decomression polymerization cuam tshuam cov peev nyiaj loj Pre - thiab tom qab-lub siab ua siab polymerization muaj tus nqi tsawg thiab tsis tas yuav tau nqis peev ntau.
2. Cov Qauv Tsis Ncaj Nraim Polymerization
Polymerizer txuas ntxiv rau hauv cov kev siv hluav taws xob siab yog siv rau kev tsim khoom ntawm cov txheej txheem ntawm cov lag luam hauv tebchaws Asmeskas yog cov neeg sawv cev tshaj plaws. Cov txheej txheem yog tsiag ntawv los ntawm loj-teev txuas ntxiv polymerization ntawm 260 ℃ rau 20H. Slices tau txais nyob rau hauv dej kub caporpercurrent theem. Tom qab Oligomers tau qhuav los ntawm cov pa roj nitrogen, cov monomers tau rov qab los ntawm kev rho tawm, thiab cov txheej txheem evaporation thiab confortration txuas ntxiv tau qhia tib lub sijhawm. Txoj kev no muaj kev ua tau zoo dua qub, tuaj yeem tau txais cov khoom lag luam zoo, muaj txiaj ntsig zoo, thiab tsis nyob hauv cov ntaub ntawv loj heev, yog cov txheej txheem sib txuas lus ib txwm muaj.
3.Qhia Hydrolysis Polymerization
Lub pob hydrolyfy polymerization txoj kev siv siab tiv taus polymerization kettle. Hom no yog qhov tsim nyog rau kev tsim cov ntau thiab me me batch engineering yas slices. Ib-zaug pub mis, tom qab cov tshuaj tiv thaiv (ib-sijhawm tawm) nrog nitrogen siab txiav, rho tawm, tom qab ziab kom npaj pa6. Cov txheej txheem batch polymerization tuaj yeem faib ua peb theem: thawj theem yog dej tsis yog dej sib txawv; Qhov thib ob theem yog lub tshuab nqus tsev polymerization; Theem peb yog qhov kev tawm tsam sib npaug.
Batch polymerization yog tsim rau ntau ntau yam ntawm cov khoom viscosity me me, tuaj yeem tsim cov khoom siv viscerization me me, tuaj yeem tsim cov khoom sib tw me me, tuaj yeem tsim cov khoom sib txawv tas li, cov khoom lag luam zoo dua, cov khoom lag luam zoo dua, tuaj yeem ua tiav lawm
4.Twin-ntsia hlau Extrusion Nruam Polymerization Txheej Txheem
Twin-ntsia hlau Extrusion Polymerization txheej txheem yog lub thev naus laus zis tshiab hauv xyoo tas los. Nws adopts anionic catalytic polymerization thiab caprolactam tau ua kom tau los ntawm lub cev qhuav dej thiab tom qab ntawd nkag mus nkag rau cov ntsia hlau ntxaib-ntsia hlau extruder. Nyob rau hauv lub ntxaib-ntsia hlau extrusion, cov khoom txauv cov khoom txav raws li kev sib hloov nrog kev sib hloov ntawm lub hau ntswj, thiab nws cov txheeb ze cov roj av txuas ntxiv mus ntxiv. Cov khoom siv molecular tsawg yog muab rho tawm los ntawm lub tshuab nqus tsev ntawm ntxaib-ntsia hlau Extruder, thiab cov duab ua si txias thiab hlais thiab ntim.
Cov txheej txheem muaj cov yam ntxwv ntawm cov txheej txheem luv thiab cov txheej txheem ntau lawm, thiab cov txheej txheem ntau lawm, thiab cov monomer cov ntsiab lus ntawm cov khoom lag luam yog tsawg heev, tsis muaj extraction. Cov kua dej yog tsawg, lub sijhawm kom qhuav yog luv luv, tuaj yeem txo qis kev siv zog. Nyob rau tib lub sijhawm, qhov sib piv ntawm cov khoom muaj zog ntawm cov khoom tuaj yeem tswj tau los ntawm lub sijhawm lub sijhawm nyob hauv lub ntsej muag ntxaib-ntsia hlau Extruder.
- Kawm txog kev hloov kho ntawm PA6
1.Txoj Kev Hloov Kho
Vim tias lub neej ntawm hydrogen bonds hauv pa6 molecules, nws qhov yooj thiab lub zog yuav cuam tshuam cuam tshuam. Nrog rau kev nce ntawm hydrogen daim ntawv cog lus ntom, cov neeg kho tshuab lub zog ntawm PA6 yuav raug hluav taws xob sib raug zoo. Qhov ntau cov pa roj atoms muaj, ntev dua cov saw hloov tau, ntau dua nws yog. Cov cuab yeej siv cov tshuab ntawm PA6 sib xyaw tuaj yeem txhim kho los ntawm kev ntxiv cov iav fiber ntau. Tus Tetragonal Zno Whisker muaj kev nruj heev. Raws li qhov no, cov txiaj ntsig ntawm kev kawm ntawm cov txiaj ntsig zoo tshaj plaws ntawm lub zog yog 5%, thiab nce cov ntsiab lus Whitting yog 5%, thiab nce cov ntsiab lus dej ua kom tsis kam thiab dej nqus ntawm cov khoom siv. Tus yoov tshauv tau kho nrog cov neeg ua si sib txuas lus thiab tom qab ntawd sau rau hauv cov khoom siv PA6 rau kev hloov kho. Cov khoom kawg tau zoo dua thermal stability, shrinkage tus nqi thiab kev nqus dej.
2.Flame retardant hloov kho
Cov Oxygen Index ntawm PA6 yog 26.4, uas yog cov khoom siv hluav taws xob. Cov cai teb chaws thiab cov cai muaj tseeb yuav tsum tau muab cov nplaim hluav taws xob rov qab rau cov nplaim hluav taws xob rov qab los ntawm PA6 thaum nws tau siv hauv cov hluav taws xob cov khoom lag luam ntsig txog hluav taws xob. Cov nplaim taws rov qab los ntawm txhuas hypophosphate yog qhov zoo nyob rau hauv cov ntaub ntawv npaj los ntawm kev sib xyaw ntau hlau hypophosphate salts nrog PA6. Thaum cov ntsiab lus ntawm txhuas hypophosphate yog 18%, qhov hlawv poob ntawm cov khoom tuaj yeem ncav cuag 25, thiab ul94 tuaj yeem ncav cuag V-0 qib.
Melamine cyanuric acidic acid (MCA) hloov kho nrog cov phosphorus liab tuaj yeem siv los ua nplaim taws retardant ntawm PA6. Liab phosphorus tau tuaj yeem tsim kho cov teeb meem loj hydrogen hydrogen, yog li MCA tuaj yeem tsim cov pa hluav taws xob. Yog li no, hloov MCA tau hloov kho cov nplaim hluav taws xob retardant lub luag haujlwm nyob rau theem thiab roj av, uas yog qhov zoo rau kev txhim kho ntawm cov nplaim hluav taws xob ntawm PA6. Lub lim dej oxygen index (Lauv) ntawm cov composite tau txhim kho los ntawm kev ntxiv ghaanidine sulfonic acid mus rau hauv PA6 matrix los ntawm cov qauv sib xyaw. Txoj kev ntsuas sib tshooj ntsug qhia tau tias qhov tawm los ntawm Molten cov dej ntws tau muab piv rau Guanidine Acid tau tsis tsawg dua li 5%.
Liab phosphorus
3.Txoj Kev Hloov Kho Kev Hloov 3.
Cov kev hloov kho thiab hloov kho PA tuaj yeem tau txais los ntawm kev ntxiv cov khoom lag luam ductin lossis elastomer mus rau PA cob thiab mam li sib xyaw thiab extrusion.Thaum cov neeg sawv cev nruj dua yog polarized SBS, cov tawv nqaij sib xyaw ua ke ntawm polarized SBS thiab PA6 yog tau los ntawm cov tshuab melting los ntawm cov txheej txheem. Thaum tus nqi ntawm polarized sbs tau nce, cov ntsiab lus cuam tshuam tsis muaj zog ntawm cov kab ke thiab qhov hloov tau ntawm cov khoom yuav tseem yuav tau txhim kho. Piv nrog rau PA6 thiab EPDM muab tso rau nrog txiv neej anthydride muaj roj hmab zoo dua thiab kev sib xyaw yas thiab muaj zog dua thiab muaj zog dua. Thaum cov nqi ntawm EPDM grafted nrog txiv neej anhydride yog 15%, cov khoom siv sib xyaw muaj 9 zaug uas tseem ceeb tshaj plaws muaj zog dua li cov khoom siv pa6.
SBS kev ua tus sawv cev
Yees duab qhov chaw: GuoGeng Roj Hmab Thiab Yas Yas
4. Tshem Tawm Kev Hloov Kho
Qhov kev lag luam ua haujlwm tau ntxiv rau hauv PA cob, thiab cov khoom siv hloov pauv PA tuaj yeem tau txais tom qab kev sib txuas thiab extrusion. Siv Silicon carbide li thermal conderivity fermal customer, txuas txuas rau ntawm cov muab tub lim, los ntawm cov ntsaws ruaj ruaj, cov thermal conductivity pa composite cov khoom muaj kev ua tau zoo heev. Thaum cov ntawv sau ntawm Thermal conductivity filter, pa6 saw txuas thiab kev kho cua sib txuas, tshuab cua sov, tshuab thiab cua sov kev ua haujlwm ntawm cov khoom sib xyaw tseem yuav hloov pauv.
Silicon Carbide
Cov khoom siv sib xyaw tau los ntawm PA6 thiab organic monic moniced kho kom zoo nkauj muaj kev sib txhuam zoo heev thiab hnav, tshuab cua kub thiab cov tshuab hluav taws xob. Tus muab tub lim yog txhuas hmoov, lub substrate yog copolymerized pa6 thiab pa66, thiab cov khoom siv suav tuaj yeem npaj tau los ntawm yaj. Thaum cov ntsiab lus ntawm txhuas cov hmoov nce, lub tensile lub zog ntawm cov composite nce ntxiv, thiab cov khoom siv los ntawm kev cuam tshuam kev txo qis. Tom qab sau ya tshauv microbeads hauv pa6, kev nyuaj, cuam tshuam thiab tensile lub zog ntawm cov khoom tuaj yeem txhim kho tau zoo heev, thiab cov khoom tuaj yeem ua tau zoo nrog kev ruaj khov zoo dua.
5.Fa Alloy
PA6 alloy belongs rau cov txheej txheem sib xyaw ua ke, feem ntau ntawm cov uas muaj tsawg kawg yog ob hom uas txuas rau copolymer thiab thaiv copolymer yog siv dav. PA6 thiab txiv neej anhydride glastride polypropylene (pah g-mah) tom qab ua kom qis dua PA6, thiab muaj qhov cuam tshuam ntau dua PA6.
Tsawg ntxhiab tsw txiv neej muaj anhydride gobored polypropylene
Lub ntsej muag ntsuab qis dua polyethylene (ldpe), txiv neej muaj mob (Mah) thiab tus txiv neej) Tom qab ntawd, kev sib xyaw ntawm LDPE-G-MAH thiab PA6 tuaj yeem npaj los ntawm melting blending qauv ua ke nrog ib qho me me ntawm PA6. Thaum cov tshuaj pleev ntawm txiv neej agic anhydride yog 1.0, sib xyaw nrog qhov zoo tshaj plaws tensile muaj zog yuav tau txais. Thaum cov nqi ntawm txiv neej muaj anhydride tau tswj hwm ntawm 1.0 feem, kev hloov pauv ntawm DCP kev yuav tsis muaj ntau dhau ntawm cov khoom ntawm kev sib tov. Thaum cov nqi ntawm DCP yog 0.6, lub zog zoo tshaj plaws ntawm lub zog ntawm kev sib xyaw yuav tau txais.
Cov piv txwv dhau los ntawm Pa6 aggation Technology suav nrog Switzerland cov khoom ua khoom lag luam, Ltalis tus neeg tsis muaj qab hau, thiab lub teb chaws Yelemees ntawm Fischer thiab Zimmer. Ntawm lub hauv paus ntawm kev kawm nquag los ntawm kev ua haujlwm txawv teb chaws thiab kev txhim kho ntawm cov khoom siv tshiab (xws li cov khoom siv v khais)
Cov polymerization muaj peev xwm ntawm PA6 hauv Suav teb tau tswj hwm kev nthuav dav sai sai, nrog kev tsim khoom ntawm PA66. Nyob rau theem tam sim no, kev hloov kho cov pab pawg ntawm PA6 yog qhov ua kom muaj zog, txhaws nws cov acidic dyes, thiaj li ua kom tiav kev tawm tsam). Txawm hais tias qhov kev hloov kho no yog yeej nqa los ntawm cov ntaub ntawv tshwj xeeb, cov qauv hloov kho ntawm extrusion thiab cov tshuaj tiv thaiv yog tseem haum. Nrog rau kev txhim kho ntxiv ntawm cov thev naus laus zis niaj hnub, muaj zog, siab heev, muaj kev kub siab, yog li kom tau raws li cov kev xav tau ntawm ntau qhov kev xav tau ntawm ntau daim teb.
Synthricution tech.committed rau kev tshawb fawb thiab kev tsim kho nylon hloov, ntau lawm, tswj hwm kev ua lag luam txawv teb chaws, tos txais cov neeg siv khoom nug.
For inquiry please contact：little@syntholution.com
Lub sijhawm Post: Mar-16-2023