Kev nce qib hauv kev vam meej kev txhawb nqa ntawm Peb Cov Kev Ua Haujlwm Siab Fiber Textiles

Kev nce qib hauv kev vam meej kev txhawb nqa ntawm Peb Cov Kev Ua Haujlwm Siab Fiber Textiles

Cov fibers muaj kev ua haujlwm siab muaj zog tiv thaiv lub cev xws li lub teeb, hluav taws xob, hluav taws xob, hluav taws xob, thiab kev quab yuam los ntawm lub ntiaj teb sab nraud, nrog rau cov tshuaj lom neeg xws li oxidants, acids, thiab alkalis, kom cov fibers muaj zog, siab modulus, kub tsis kam, thiab nplaim retardant zog. Cov fibers ua haujlwm siab tuaj yeem muab faib ua cov organic fibers thiab inorganic fibers. Organic fibers muaj xws li: aramid fibers, ultra-siab molecular hnyav polyethylene fibers, polyphenylene sulfide fibers, thiab lwm yam .; inorganic fibers feem ntau muaj xws li: carbon fibers, ceramic fibers, thiab lwm yam, ntawm uas carbon fibers, aramid fibers thiab ultra-high molecular hnyav polyethylene fibers yog peb loj Fibers tseem nyob rau hauv ib lub sij hawm ntawm kev loj hlob sai, thiab tau maj mam nkag mus rau lub sij hawm ntawm khaus. technology innovation thiab kev sib tw; kev lag luam thoob ntiaj teb kev xav tau nrawm dua, thiab cov tuam txhab lag luam txuas ntxiv tshawb nrhiav cov ntawv thov. Tsim cov khoom lag luam tshiab kom tau txais kev sib tw kom zoo dua.

Tam sim no, cov fibers ua tau zoo yog nyob rau theem ntawm kev loj hlob, thiab ntau yam khoom (cov ntaub ntawv sib xyaw, hlua, thiab lwm yam) kuj tau siv rau hauv kev lag luam tub rog, aerospace, navigation, civil engineering, textile thiab khaub ncaws. Txoj kev tshawb no qhia thiab txheeb xyuas ntau yam kev ua kom zoo tshaj plaws rau peb qhov kev ua tau zoo ntawm cov fibers thiab textiles nyob rau hauv cov nqe lus ntawm kev txo nqi, kev ua haujlwm zoo, thiab kev muaj txiaj ntsig ntxiv rau kev txhim kho cov ntaub ntawv zoo tshaj plaws rau hauv cov khoom siv tau zoo. haiv neeg thiab pej xeem.

1. Carbon fiber ntau

Cov pa roj carbon fiber ntau yog cov khoom siv fiber ntau ua los ntawm cov txheej graphite crystallites stacked nyob rau hauv axial kev taw qhia. Nws muaj cov khoom siv kho tshuab zoo heev thiab lub teeb yuag. Tom qab ntau xyoo ntawm txoj kev loj hlob, kev lag luam daim ntawv thov ntawm carbon fiber tau kis mus rau ntau lub teb chaws high-tech.

1.1 Kev Tsim Kho Tshuab

Tam sim no, kwv yees li 90 feem pua ​​​​ntawm kev lag luam carbon fiber yog tsim los ntawm polyacrylonitrile (PAN). Ib txwm muaj PAN-raws li cov pa roj carbon fiber ntau yog kim thiab txwv tsis pub cov khoom siv, ua rau nws nyuaj rau nrov ntawm cov nplai loj. Txhawm rau txo cov nqi, pheej yig textile-qib PAN thiab txuas ntxiv lignin yog siv los ua cov ntaub ntawv ua ntej rau kev tsim cov pa roj carbon fiber ntau.

Jiang et al. Siv cov txheej txheem ntub dej los npaj cov khoom siv ua ntej los ntawm cov nplej straw lignin thiab textile acrylic fibers raws li cov khoom siv raw tuaj yeem txo cov nqi ntawm carbon fibers; vim qhov kub ntawm cov tshuaj tiv thaiv siab ntawm lignin, nws tuaj yeem ua rau lignin / AN sib xyaw fibers txhim kho thermal stability. Huang thiab nws pab neeg tau siv hlau-dawb guanidine hydrochloride los hloov cov ntaub ntawv acrylic fibers, tso cai rau cov txheej txheem ua ntej oxidation tshwm sim ntawm qhov kub thiab txias, txo cov nqi tsim khoom. Nyob rau tib lub sijhawm, cov qauv polymer tsim los ntawm cov tshuaj tiv thaiv cyclization ntawm cov pab pawg nitrile ntawm qhov kub thiab txias yog qhov ruaj khov dua, yog li cov pa roj carbon fiber ntau muaj cov khoom siv zoo dua qub. UV irradiation ntawm PAN fibers uas muaj photoinitiators ua ntej oxidation tuaj yeem ua rau cov tshuaj tiv thaiv cyclization thiab txo lub sijhawm oxidation. Txoj kev tshawb no los ntawm Jo et al. Nws tau pom tias irradiating textile-qib PAN fibers tsis muaj photoinitiator nrog UV teeb tuaj yeem txhawb nqa cov txheej txheem ua ntej oxidation, uas siv sijhawm 30 feeb xwb. Electrospinning siv cov txheej txheem yooj yim yog txoj hauv kev zoo tshaj plaws los npaj cov pa roj carbon nanofibers (CNFs), cov txheej txheem uas nyob ntawm ntau qhov ua ntej xws li PAN, suab, thiab lignin. Chen et al. Bagasse tau homogeneously esterified siv cov kua qaub anhydride thiab tom qab ntawd tov nrog PAN rau electrospinning los npaj CNFs. Esterified bagasse pab khaws cov nitrogen atoms ntawm CNF, yog li txhim kho thermal stability, hluav taws xob conductivity thiab nto ua haujlwm ntawm cov fibers.

Nws tuaj yeem pom tau tias, txawm tias nws yog ib txwm ntub dej spinning lossis tshiab electrospinning, tus yuam sij kom txo cov nqi ntawm carbon fiber ntau yog nyob rau hauv cov ntaub ntawv raw thiab cov txheej txheem. Kev tshawb fawb tsom mus rau kev xaiv, hloov kho thiab kev ua kom zoo dua ntawm cov khoom siv ua ntej ntawm cov pa roj carbon. Ntxiv thiab rho tawm. Tau kawg, txhawm rau ua kom tau txais cov nqi qis qis, nws tseem yuav tsum tau ua kom cov khoom lag luam nce ntxiv.

1.2 Shading technology

Lub siab crystallinity thiab tshuaj inertness ntawm carbon fiber ua rau nws nyuaj rau xim nrog ib txwm dyes los yog pigments. Photonic crystals yog cov khoom siv dielectric uas tau txiav txim ib ntus hauv qhov chaw siv cov ntaub ntawv nrog qhov sib txawv refractive indices. Nws muaj qhov sib txawv photonic band thiab tuaj yeem xaiv qhov cuam tshuam ntawm photons ntawm qee qhov wavelength, thiab lub teeb pom kev yog diffracted rau saum npoo ntawm cov siv lead ua, ua rau xim. Cov xim carbon fibers tuaj yeem npaj tau los ntawm kev sib sau ua ke cov khoom sib cais colloidal nanoparticles ntawm cov pa roj carbon fiber ntau los ntawm electrophoretic deposition, tab sis cov neeg kho tshuab durability yog tsis txaus nyob rau hauv cov ntaub ntawv siv. Niu et al. ZnO thiab Al2O3 khaubncaws sab nraud povtseg nrog loj refractive index sib piv tau siv raws li lub sij hawm Cheebtsam thiab tso rau saum npoo ntawm plasma activated carbon fibers los ntawm atomic txheej deposition txheej txheem. Kev npaj ntau cov xim carbon fibers muaj kev ruaj ntseg zoo heev thiab washability. poj niam txiv neej. Nyob rau hauv cov teeb meem tawg tawg, cov ntaub npuag dawb ntawm cov fibers tuaj yeem pom lub kaum sab xis-xws li cov khoom thiab xim.

1.3 Kev Siv Tshuab Ua Haujlwm

1.3.1 Flexible fiber ntau electrodes

Nrog rau kev txhim kho sai ntawm kev siv thev naus laus zis, kev tshawb fawb ua haujlwm ntawm cov khoom siv hluav taws xob ntse tau txhim kho tau zoo nyob rau xyoo tas los no. Kev tshawb nrhiav thiab kev txhim kho ntawm cov khoom siv hluav taws xob sib txuas tau maj mam nyob hauv ib qho chaw. Piv txwv li, carbon fiber-raws li ntaub yog tam sim no nrov saj zawg zog electrode cov ntaub ntawv; Txawm li cas los xij, qhov ua tau zoo thiab kev ua tau zoo ntawm cov electrodes yog qhov teeb meem tseem ceeb hauv kev tsim cov khoom siv ntse. Li et al. KOH-coated paj rwb ntaub yog carbonized los ntawm ib tug dynamic template calcination txheej txheem, uas txhawb kev tsim cov txheej txheem porous qauv ntawm phab ntsa fiber. Cov khoom siv carbon fiber ntau muaj cov khoom siv zoo heev thiab tuaj yeem siv los ua supercapacitor electrodes. Muaj lwm txoj hauv kev los tsim supercapacitive carbon fiber ntaub electrodes, xws li xaiv tshuaj etching thiab electrochemical exfoliation ntawm npib tsib xee nanoparticles los tsim multiscale pores thiab reactive pawg nyob rau hauv fabrics, thiab heteroatom hloov ntawm carbon fiber fabrics. Tsis tas li ntawd, CNFs muaj cov khoom siv hluav taws xob zoo thiab thaj chaw loj tshwj xeeb, uas muaj peev xwm zoo hauv kev siv cov khoom siv hluav taws xob. Levitt et al. Qhov kev hloov pauv ntawm ob sab hlau carbide Ti3C2Tx tau muab sib xyaw rau hauv PAN tov, ua raws li electrospinning los npaj cov pa roj carbon nanofiber mats. Lub capacitance ntawm cov khoom electrodes yog li fabricated yog siab dua li cov ntshiab carbon fibers. Qhov sib ntxiv ntawm Ti3C2Tx txhim kho cov khoom siv hluav taws xob ntawm cov khoom siv hluav taws xob sib xyaw. Conductivity thiab durability kuj muaj zog.

1.3.2 Flexible Sensors

Nrog rau kev txhim kho kev paub txog kev noj qab haus huv rau pej xeem thiab kev txhim kho cov khoom siv hauv cov chaw tshwj xeeb, cov ntaub ntawv ntse tau maj mam muab tso rau hauv kev saib xyuas kev kho mob thiab kev saib xyuas. Ib qho ntawm cov khoom tseem ceeb yog lub sensor. Azizhani et al. Chav tsev kub curing silicone roj hmab yog xaiv raws li cov matrix, thiab cov pa roj carbon fiber ntau yog siv los ua cov khoom siv los npaj cov kev tiv thaiv strain sensor, uas muaj rhiab heev nyob rau hauv ntau yam ntawm strain amplitude mus txog 25 feem pua; nws lub sijhawm rov qab yog tsawg dua 15 s. Thaum hom sensor no siv rau tib neeg saib xyuas, nws tuaj yeem ua kom lub teeb liab ruaj khov thiab muaj zog sensing kev ua tau zoo. Ib yam li ntawd, lub siab rhiab heev thiab stretchability ntawm piezoresistive tws carbon fiber / polydimethylsiloxane composite sensor [18] ua rau nws haum rau strain sensing nrhiav tau nyob rau hauv ntau daim ntawv thov, xws li tib neeg txoj kev txav, ntaub wrinkling, thiab lwm yam. Txawm li cas los xij, hom sensor no xav tau kev txhim kho ntxiv. Nws piezoresistive zog yog rhiab heev rau cov qauv load. Kev siv ntau dhau lawm yuav ua rau muaj teeb meem xws li txo qhov rhiab heev thiab ncua kev hloov piezoresistive.

2. Aramid fiber ntau

Lub npe tag nrho ntawm aramid fiber yog aromatic polyamide fiber, uas muaj qhov zoo ntawm lub zog siab, siab modulus, tsis tshua muaj ntom, hnav tsis kam, cuam tshuam, thiab rwb thaiv tsev zoo heev. Vim muaj qhov sib txawv ntawm kev sib txuas ntawm amide daim ntawv cog lus thiab lub nplhaib benzene, muaj qhov sib txawv ntawm cov qauv molecular ntawm aramid, uas feem ntau muab faib ua para-aramid, meta-aramid thiab aramid III.

2.1 Kev Tsim Kho Tshuab

Nyob rau hauv xyoo tas los no, aramid fibers hauv tsev thiab txawv teb chaws tau maj mam ua tiav cov khoom lag luam muaj nqis ntxiv, thiab cov khoom tsim tawm tau nce xyoo los ntawm xyoo. Aramid 1414 (poly-p-phenylene terephthamide, PPTA) fiber ntau, yog ib qho ntawm cov khoom tseem ceeb, yog lub ntsiab lus tseem ceeb hauv kev tswj cov khoom tiav thaum lub sij hawm spinning. Chen Zhourong tau ua cov txheej txheem kev tshawb fawb txog qhov no: ntxiv dej thiab tshuaj tiv thaiv kab mob rau pretreat PPTA fibers kom txo tau hluav taws xob zoo li qub; thaum carding, siv lub tog raj kheej thiab doffer li nrog cov hniav me me qhov tob thiab ceev txav ceev los daws qhov teeb meem uas spinning yog feem ntau rau hmoov thiab pob qhov rooj. Nyob rau tib lub sijhawm, kho lub suab ntawm lub cuab yeej kom ceev cov hloov pauv fiber ntau. Kev txhim kho thiab tsim cov aramid fibers nrog cov khoom siv kho tshuab siab dua yog lub ntsiab lus tshawb fawb tsim nyog los nthuav dav daim ntawv thov ntawm aramid fibers. Teng et al. Sib xyaw ua lag luam PPTA nrog h-PPTA (siab molecular hnyav PPTA) nyob rau hauv concentrated sulfuric acid. Thaum lub sij hawm qhuav-jet-ntub spinning txheej txheem, h-PPTA tuaj yeem txhim kho kev sib cuam tshuam ntawm macromolecules thiab induce lub orientation ntawm luv PPTA chains raws cov fiber axis. Lub zog tensile thiab thawj qhov qauv ntawm cov tsim aramid fibers tau txhim kho. Tsis tas li ntawd, Ren Zhongkai et al. Kev tshawb fawb thiab kev npaj ntawm high-strength aramid 1313. Lub zog tawg ntawm cov pa aramid 1313 yog qis dua li ntawm aramid 1414. Los ntawm kev ua kom cov viscosity ntawm cov spinning tov thiab txo cov khoom muaj zog, qhov hnyav molecular ntawm cov polymer tuaj yeem nce, thiab qhov sib ntxiv ntawm modifiers tuaj yeem ua rau kom muaj kev taw qhia thiab cov qauv kev sib xws ntawm cov fibers. Cov cua sov maj mam thiab maj mam ntxuav txoj kev ua kom lub compactness ntawm cov qauv fiber ntau. Cov kev txhim kho ntau yam no ua rau cov fibers muaj zog thiab ruaj khov dua.

2.2 Shading technology

Aramid muaj cov qauv compact thiab siab hloov iav kub, ua rau nws nyuaj rau dye nrog cov txheej txheem ib txwm ua. Yog li ntawd, thaum lub zog ntawm macromolecular saw ntawm fiber ntau nce thiab qhov chaw amorphous nce, cov xim tuaj yeem nkag mus rau hauv cov fiber ntau thiab ua ke nrog nws. Azam et al. Nws tau npaj siab tias qhov dyeing qhov tob ntawm aramid fibers yog qhov tsawg nyob rau xyoo tas los no, yog li lawv siv benzyl cawv ua tus neeg mob o los ua kom zoo dua cov txheej txheem dyeing ntawm cationic dyes rau meta-aramid fibers. Aramid ntaub muaj siab dyeing qhov tob thiab tsis muaj zog poob. Tsis tas li ntawd, Kale et al. Qhov saum npoo ntawm dyed aramid fiber yog coated nrog titanium dioxide nanoparticles los daws qhov teeb meem ntawm lub teeb tsis zoo ntawm dyed aramid fiber. Rau kev luam ntawv ntawm aramid textiles, carrier luam ntawv nrog disperse dyes yog ib qho kev sim zoo,

2.3 Kev Siv Tshuab Ua Haujlwm

2.3.1 Fabric qauv optimization

Kev tshawb fawb rau hauv cov ntaub ntawv tiv thaiv kev ua haujlwm siab ua los ntawm aramid kuj tau tsim kho raws li qhov kev thov hauv thaj chaw ntawm tus kheej thiab cov khoom siv tiv thaiv kev lag luam nce. Raws li kev sib txhuam ntawm cov xov paj hauv aramid fabrics muaj kev cuam tshuam ntau dua ntawm kev cuam tshuam, Moure li al. Cov khoom siv kho tshuab thiab cov xov paj sib txhuam coefficients ntawm para-aramid fabrics nrog cov qauv sib txawv tau muab piv rau cov khaubncaws sab nraud povtseg ntawm cov xov paj rau cov qauv. Txoj kev tshawb nrhiav pom tias txawm tias cov khoom siv kho tshuab ntawm cov xov paj yog tib yam, cov khoom siv kho tshuab ntawm cov ntaub sib txawv; Thaum cov aramid fibers yog interwoven ntawm cov ntaub reinforcing ntawm ib tug ntsug lub kaum sab xis, lawv muaj peev xwm nqus tau ntau lub zog, uas yog loj dua li cov ntaub mos mos. Thiab thaum cov ntaub muaj ntau dua absorbed zog ceev thiab kev sib txhuam coefficient,

2.3.2 Txhim kho kev ua haujlwm ntawm Fabric

Txhawm rau txhim kho qhov ua tau zoo ntawm cov khaub ncaws tiv thaiv, Nayak li al. siv boron carbide coatings rau aramid fabrics. Txawm hais tias tag nrho cov puncture tsis kam ntawm cov ntaub yog txhim kho, nws kuj ua rau muaj kev ntxhov siab concentration, uas cuam tshuam rau kev tiv thaiv hauv zos ntawm cov ntaub; Nyob rau tib lub sijhawm, qhov ntws ntawm hws vapor ntawm txheej yog txwv, ua rau txo qis kev nplij siab. Nyob rau hauv qhov kev pom ntawm qhov teeb meem ntawm cov dej tsis zoo hws thiab hws kev ua tau zoo ntawm aramid fabrics, kua qaub poov tshuaj permanganate los yog plasma hloov pauv ua ke nrog ya raws thiab hws tiav txoj kev tuaj yeem siv los tsim cov pawg polar ntawm cov ntaub fibers los txhim kho cov wettability ntawm fibers, thiab ua tiav. nkag mus thiab bonds zoo dua rau cov fibers. Feem ntau hais lus, multifunctional khoom yog nrov nyob rau hauv kev ua lag luam. Shen et al. Cov tshuaj sib xyaw ntawm cov dej-raws li polyurethane, polyvinylidene fluoride-hexafluoropropylene copolymer thiab fluoroalkyl silane tau coated ntawm aramid ntaub los ntawm dip txheej txheej, thiab cov ntaub tau txais muaj ob qho tib si ruaj superhydrophobicity thiab tshuaj tiv thaiv kev ua haujlwm. . Liu et al. Aramid fabrics tau impregnated nrog shear thickening fluid (STF) thiab coated nrog carbon nanotubes (CNTs) los ntawm cov txheej txheem sib xyaw, ua rau cov ntaub ntawv sib xyaw nrog kev tiv thaiv zoo heev thiab kev ua haujlwm zoo. Ntawm lawv, CNT nce cov hluav taws xob conductivity thiab cov yam ntxwv ntawm cov ntaub, uas tuaj yeem kuaj pom tau zoo; Qhov sib ntxiv ntawm STF ua rau cov ntaub ntawv sib xyaw kom tiv taus cov kev cuam tshuam ntau dua thiab muab kev tiv thaiv zoo dua. Polyvinylidene fluoride-hexafluoropropylene copolymer thiab fluoroalkyl silane tau dip-coated ntawm aramid ntaub, thiab cov ntaub uas tshwm sim muaj ob qho tib si ruaj superhydrophobicity thiab tshuaj tiv thaiv. . Liu et al. Aramid fabrics tau impregnated nrog shear thickening fluid (STF) thiab coated nrog carbon nanotubes (CNTs) los ntawm cov txheej txheem sib xyaw, ua rau cov ntaub ntawv sib xyaw nrog kev tiv thaiv zoo heev thiab kev ua haujlwm zoo. Ntawm lawv, CNT nce cov hluav taws xob conductivity thiab cov yam ntxwv ntawm cov ntaub, uas tuaj yeem kuaj pom tau zoo; Qhov sib ntxiv ntawm STF ua rau cov ntaub ntawv sib xyaw kom tiv taus cov kev cuam tshuam ntau dua thiab muab kev tiv thaiv zoo dua. Polyvinylidene fluoride-hexafluoropropylene copolymer thiab fluoroalkyl silane tau dip-coated ntawm aramid ntaub, thiab cov ntaub uas tshwm sim muaj ob qho tib si ruaj superhydrophobicity thiab tshuaj tiv thaiv. . Liu et al. Aramid fabrics tau impregnated nrog shear thickening fluid (STF) thiab coated nrog carbon nanotubes (CNTs) los ntawm cov txheej txheem sib xyaw, ua rau cov ntaub ntawv sib xyaw nrog kev tiv thaiv zoo heev thiab kev ua haujlwm zoo. Ntawm lawv, CNT nce cov hluav taws xob conductivity thiab cov yam ntxwv ntawm cov ntaub, uas tuaj yeem kuaj pom tau zoo; Qhov sib ntxiv ntawm STF ua rau cov ntaub ntawv sib xyaw kom tiv taus cov kev cuam tshuam ntau dua thiab muab kev tiv thaiv zoo dua. Aramid fabrics tau impregnated nrog shear thickening fluid (STF) thiab coated nrog carbon nanotubes (CNTs) los ntawm cov txheej txheem sib xyaw, ua rau cov ntaub ntawv sib xyaw nrog kev tiv thaiv zoo heev thiab kev ua haujlwm zoo. Ntawm lawv, CNT nce cov hluav taws xob conductivity thiab cov yam ntxwv ntawm cov ntaub, uas tuaj yeem kuaj pom tau zoo; Qhov sib ntxiv ntawm STF ua rau cov ntaub ntawv sib xyaw kom tiv taus cov kev cuam tshuam ntau dua thiab muab kev tiv thaiv zoo dua. Aramid fabrics tau impregnated nrog shear thickening fluid (STF) thiab coated nrog carbon nanotubes (CNTs) los ntawm cov txheej txheem sib xyaw, ua rau cov ntaub ntawv sib xyaw nrog kev tiv thaiv zoo heev thiab kev ua haujlwm zoo. Ntawm lawv, CNT nce cov hluav taws xob conductivity thiab cov yam ntxwv ntawm cov ntaub, uas tuaj yeem kuaj pom tau zoo; Qhov sib ntxiv ntawm STF ua rau cov ntaub ntawv sib xyaw kom tiv taus cov kev cuam tshuam ntau dua thiab muab kev tiv thaiv zoo dua.

3. UHMWPE fiber ntau

Ultra-high molecular hnyav polyethylene (UHMWPE) fibers muaj ntau yam zoo heev xws li lub zog tensile siab, siab modulus, thiab tsis tshua muaj huab hwm coj ceev, thiab yog inert nyob rau hauv cov tshuaj solvents.

3.1 Kev Tsim Kho Tshuab

Tam sim no, kev tsim cov UHMWPE fibers tau muaj kev lag luam, tab sis txoj kev tsim khoom loj no tsuas yog ua tiav los ntawm gel spinning. Txawm li cas los xij, txoj kev no siv ntau cov kuab tshuaj organic thiab ua rau muaj teeb meem ntawm ib puag ncig muaj kuab paug nrog cov nqi tsim khoom siab. Cov txheej txheem ntawm yaj spinning (melt spinning), uas yog yooj yim nyob rau hauv cov txheej txheem, tsis xav tau cov organic hnyav thiab muaj nqi tsawg, yog ib qho kev xaiv zoo dua. Kakiage et al. Ua ke yaj spinning thiab yaj daim duab npaj txoj kev los txhim kho tensile lub zog ntawm UHMWPE fibers. Melt daim duab accelerates qhov nce nyob rau hauv linear siv lead ua orientation nyob rau hauv lub fiber. Ntawm 145 degree, lub zog tensile ntawm fiber ntau tuaj yeem ncav cuag 1.1 GPa nyob rau hauv cov xwm txheej ntawm qhov sib piv ntawm 20 thiab strain tus nqi ntawm 40 / min. Piv nrog rau gel spinning, cov khoom siv kho tshuab ntawm UHMWPE fibers ua los ntawm yaj spinning muaj zog dua. Txawm li cas los xij, hauv kev ua kom tau raws li qhov xav tau ntawm kev lag luam nruab nrab lub zog fiber ntau thiab kev lag luam textile, nruab nrab lub zog UHMWPE fibers ua los ntawm lub teeb-polluting melt spinning yog txaus.

3.1 Shading technology

Los ntawm qhov kev xav ntawm kev lag luam downstream ntawm UHMWPE fibers, UHMWPE fibers nrog nplua nuj xim tuaj yeem ua rau tus nqi ntxiv ntawm cov khoom, nthuav cov ntawv thov kev lag luam, thiab yog li txhim kho cov khoom sib tw. Txawm li cas los xij, vim muaj cov crystallinity siab thiab tsis muaj cov pab pawg ua haujlwm ntawm UHMWPE fibers, cov txheej txheem ib txwm muaj nyuaj rau zas xim. Ma et al. Kev sim zas UHMWPE fabrics ntawm 120 degree thiab 20 MPa supercritical carbon dioxide (scCO2). Nrog rau qhov nce ntawm dyeing lub sij hawm thiab dye concentration, lub dyeability ntawm UHMWPE ntaub yog tsis tu ncua txhim kho, thiab cov xim ceev ceev ntawm cov ntaub kuj zoo tuaj. Lub sij hawm staining tau ntev thiab nce. Thiab qhov sib ntxiv ntawm decalin ua ib qho kev sib xyaw ua ke hauv scCO2 ua rau muaj xim ntau dua. Tab sis tom qab ntxiv decalin,