Muaj ntau tus neeg siv khoom los ntawm peb lub vev xaib los hu xov tooj los sab laj txog hom hnab woven thiab daim ntawv thov, uas hnub no dongle woven hnab xiaobian los piav qhia txog hom hnab woven thiab daim ntawv thov.
Cov hnab xaws kuj tseem hu ua cov hnab tawv nab. Nws yog ib hom yas, feem ntau yog siv rau kev ntim khoom. Nws cov khoom siv raw feem ntau yog polyethylene, polypropylene thiab lwm yam khoom siv yas tshuaj lom neeg. Cov hauv qab no yog kev qhia txog hom thiab kev siv ntawm cov hnab ntaub.
hom
Cov khoom siv tseem ceeb rau kev tsim khoom txawv teb chaws yog polyethylene (PE), thaum cov khoom siv tseem ceeb rau kev tsim khoom hauv tsev yog polypropylene (PP), ib hom thermoplastic resin uas tau npaj los ntawm ethylene polymerization. Hauv kev lag luam, cov copolymers ntawm ethylene nrog me me ntawm -olefin kuj suav nrog. Tsis muaj ntxhiab, tsis muaj tshuaj lom, polyethylene waxy, nrog kev tiv thaiv kub qis zoo heev (qhov kub ua haujlwm tsawg kawg nkaus txog -70 ~ 100 ℃), kev ruaj khov tshuaj zoo, tiv taus feem ntau acid thiab alkali corrosion (oxidation resistant acid), insoluble hauv cov kuab tshuaj dav dav ntawm chav tsev kub, nqus dej tsawg, kev ua haujlwm rwb thaiv tsev hluav taws xob zoo heev; Nws yog polyethylene (kev rwb thaiv tsev tshuaj thiab hluav taws xob) rau kev ntxhov siab ib puag ncig; Mechanical effect) rhiab heev, tsis kam rau kev laus cua sov. Cov khoom ntawm polyethylene sib txawv ntawm hom mus rau hom, feem ntau nyob ntawm nws cov qauv molecular thiab qhov ceev. Cov khoom nrog ntau qhov ceev (0.91 txog 0.96 g / cm3) tuaj yeem tau txais los ntawm ntau txoj kev tsim khoom. Polyethylene tuaj yeem ua tiav los ntawm cov txheej txheem thermoplastic forming (saib Yas ua). Siv dav hauv kev tsim cov yeeb yaj kiab, cov thawv, cov kav dej, cov xov hlau ib leeg, cov xov hlau thiab cov cable, cov khoom siv niaj hnub, thiab lwm yam. Nws kuj tseem siv tau ua cov khoom siv rwb thaiv tsev siab rau TV thiab radar. Nrog rau kev txhim kho ntawm kev lag luam petrochemical, kev tsim cov polyethylene tau tsim kho sai, suav txog li ib feem plaub ntawm tag nrho cov yas tsim tawm. Xyoo 1983, lub ntiaj teb tag nrho cov peev xwm tsim cov polyethylene yog 24.65 Mt, thiab lub peev xwm ntawm cov nroj tsuag uas tab tom tsim kho yog 3.16 Mt.
polypropylene
Cov thermoplastic resin uas tau npaj los ntawm propylene polymerization. Muaj peb qhov kev teeb tsa ntawm tag nrho isomorphism, random thiab interisomorphism. Cov khoom tseem ceeb ntawm cov khoom lag luam yog cov khoom sib xws. Polypropylene kuj suav nrog copolymers ntawm propylene thiab me ntsis ntawm ethylene. Nws feem ntau yog cov khoom tsis muaj xim translucent, tsis muaj saj thiab tsis muaj tshuaj lom. Vim nws cov qauv ib txwm thiab crystallinity siab, qhov melting point yog txog li 167 ℃. Nws yog cua sov resistant thiab cov khoom tuaj yeem sterilized los ntawm pa. Qhov ceev ntawm 0.90 g / cm3 yog lub teeb tshaj plaws universal yas. Kev tiv thaiv corrosion, tensile zog 30 MPa, lub zog, rigidity thiab pob tshab zoo dua li polyethylene. Qhov tsis zoo yog kev tiv thaiv qis thiab yooj yim laus ntawm qhov kub qis, uas tuaj yeem kov yeej los ntawm kev hloov kho thiab ntxiv cov antioxidants feem.
Cov xim ntawm cov hnab ntaub feem ntau yog dawb lossis dawb tawm, tsis muaj tshuaj lom thiab tsis muaj saj, feem ntau tsis ua rau tib neeg lub cev puas tsuaj. Txawm hais tias lawv yog ua los ntawm ntau yam tshuaj yas, lawv yog cov phooj ywg ib puag ncig thiab rov ua dua tshiab.
Cov hnab ntaub siv dav dav, feem ntau yog rau kev ntim ntau yam khoom, thiab siv dav hauv kev lag luam.
Lub hnab yas woven yog ua los ntawm polypropylene resin, extruded thiab ncab ua daim ntaub tiaj tus, thiab tom qab ntawd woven rau hauv lub hnab.
Cov hnab yas sib xyaw ua ke yog ua los ntawm cov ntaub yas los ntawm ib txoj kwj deg.
Siv rau ntim cov hmoov lossis cov khoom siv khov kho thiab cov khoom siv yoog tau. Lub hnab yas sib xyaw ua ke muab faib ua ob lub hnab hauv ib lub hnab thiab peb lub hnab hauv ib lub hnab raws li cov khoom siv tseem ceeb.
Raws li txoj kev xaws, nws muaj peev xwm muab faib ua lub hnab hauv qab, lub hnab xaws ntug, lub hnab ntxig thiab lub hnab xaws khi.
Nyob ntawm seb lub hnab dav npaum li cas, nws muaj peev xwm muab faib ua 450, 500, 550, 600, 650 thiab 700 hli. Cov lus qhia tshwj xeeb tau pom zoo los ntawm tus neeg muag khoom thiab tus neeg siv khoom.
Ntau yam ntawm daim ntawv thov
1. Cov hnab ntim khoom rau kev lag luam thiab cov khoom ua liaj ua teb
Nrog rau kev tsim thiab siv cov hnab yas uas yoog tau, cov hnab yas uas siv rau hauv kev lag luam Marine, kev thauj mus los thiab kev ntim khoom thiab cov khoom ua liaj ua teb. Cov hnab yas uas siv rau hauv kev ntim khoom ua liaj ua teb tau siv dav hauv cov khoom siv hauv dej. Kev ntim khoom, kev ntim khoom noj qaib, cov ntaub npog ua liaj ua teb, kev ntxoov ntxoo cog qoob loo, tiv thaiv cua, tiv thaiv nag thiab lwm yam khoom siv. Cov khoom siv dav dav: hnab yas rau pub tsiaj, hnab tshuaj, hnab hmoov putty, hnab yas urea, hnab yas zaub, hnab yas txiv hmab txiv ntoo, thiab lwm yam.
2. Cov khoom noj khoom haus ntim
Mov, hmoov nplej thiab lwm yam khoom noj khoom haus maj mam siv cov hnab woven. Cov hnab woven feem ntau yog: cov hnab woven mov, cov hnab woven hmoov nplej, cov hnab woven pob kws thiab lwm yam hnab woven.
3. Kev thauj mus los ncig tebchaws
Cov tsev pheeb suab ib ntus, cov kaus, cov hnab mus ncig thiab cov hnab hauv kev lag luam ncig tebchaws yog siv rau cov ntaub yas. Cov tsev pheeb suab ntawm ntau hom yog siv dav ua chaw nkaum.
Cov tsev pheeb suab ib ntus, cov kaus, cov hnab mus ncig thiab cov hnab hauv kev lag luam ncig tebchaws yog siv rau cov ntaub yas. Cov tsev pheeb suab yog siv dav ua cov ntaub npog rau kev thauj mus los thiab khaws cia, hloov cov tsev pheeb suab paj rwb hnyav thiab pwm. Cov laj kab thiab cov ntaub mesh hauv cov tsev kuj tseem siv dav hauv cov ntaub yas. Feem ntau: cov hnab logistics, cov hnab ntim khoom logistics. Cov pob khoom thauj khoom, cov pob khoom thauj khoom, thiab lwm yam.
Cov ntaub ntawv tsim kho
Txij li thaum txoj kev loj hlob ntawm geotextile hauv xyoo 1980, daim teb thov ntawm cov ntaub yas woven tau nthuav dav, siv dav hauv kev txuag dej me me, hluav taws xob, txoj kev loj, kev tsheb ciav hlau, chaw nres nkoj, kev tsim kho mine thiab kev tsim kho tub rog. Hauv cov haujlwm no, geosynthetics muaj cov haujlwm ntawm kev lim dej, dej ntws, kev txhawb nqa, kev cais tawm thiab kev tswj hwm dej ntws. Cov yas geotextiles yog ib qho ntawm cov geotextiles hluavtaws.
Cov khoom siv tswj dej nyab
Cov hnab ntaub yog qhov tseem ceeb rau kev tswj dej nyab. Lawv kuj tseem ceeb heev rau kev tsim cov ntug dej, cov dej ntws, kev tsheb ciav hlau thiab kev. Lawv yog cov hnab ntaub tiv thaiv cov ntaub ntawv, cov hnab ntaub tiv thaiv kev qhuav thiab cov hnab ntaub tiv thaiv dej nyab.
Saum toj no yog me me rau txhua tus neeg ua tiav ntawm lub hnab woven hom thiab qhov ntau thiab tsawg ntawm daim ntawv thov kev sab laj, los ntawm kev sib koom cov ntsiab lus, hom thiab daim ntawv thov ntawm lub hnab woven muaj qee qhov kev paub, yog tias koj xav mus tob dua rau hauv lub hnab ntawm cov ntaub ntawv ua lag luam, tuaj yeem tiv tauj tus neeg muag khoom hauv peb lub tuam txhab, lossis mus rau sab hnub tuaj thiab lub hnab woven tshawb nrhiav ntawm qhov chaw, kev sib txuas lus sib tham tau tham hauv daim ntawv no.
Lub sijhawm tshaj tawm: Lub Xya Hli-03-2020