Tom qab ntau tshaj 40 xyoo ntawm txoj kev loj hlob, Tuam Tshoj txoj kev lag luam PVA tau dhau los hauv ntiaj teb PVA cov chaw tsim khoom, nrog 14 PVA cov chaw tsim khoom suav nrog roj av ethylene, ntuj roj av acetylene thiab calcium carbide acetylene.
Hauv 2007, kev noj nyob hauv PVA yog 512,000 tons, thiab qhov nruab nrab txhua xyoo tau nce ntawm 2000 txog 2007 yog 7.2%. Xyoo 2008, cuam tshuam los ntawm ntiaj teb nyiaj txiag tsis txaus, kev nthuav dav ntawm PVA kev tsim kho qis hauv qis, textile thiab lwm yam kev lag luam tau mob siab kawg, thiab kev noj nyob hauv PVA tsawg dua li 4.5% xyoo-rau-xyoo. Nyob rau lub sijhawm thib ob ntawm 2009, kev nqes lag luam ntawm PVA zoo dua tuaj, thiab kev noj nyob hauv PVA nce ntxiv ntawm 2.7% xyoo-rau-lub xyoo. Hauv ob peb xyoos tom ntej no, kev thov PVA hauv tsev yuav loj hlob ntawm tus nqi sib luag. Tiantuo Kev Tawm Tswv Yim Txhawb Kev kwv yees tias kev siv yuav mus txog 728,000 tons hauv xyoo 2015 thiab qhov nruab nrab txhua xyoo tau nce ntawm 6.4% xyoo 2009-2015.
Tuam Tshoj kev noj zaub mov PVA yog muab faib rau Tuam Tshoj Sab Hnub Tuaj (28%), Tuam Tshoj Sab Qab Teb (28%), Thaj Chaw Sab Qaum Teb (suav nrog Northeast, Shandong, Henan, Hebei, Beijing, Tianjin, Shaanxi thiab Gansu, suav li 29%). Southwest China (suav nrog Yunnan, Guizhou, Hunan, thiab Hubei, suav 5%) thiab Sichuan thiab Chongqing (10%).
Kev sib xyaw thiab kev kwv yees
(1) Siv kua nplaum. Daim ntawv thov ntawm PVA hauv kev lag luam no feem ntau suav nrog putty kua nplaum thiab txheej binder puag, uas suav rau ntau tshaj 40% ntawm tag nrho cov nyiaj, uas yog ib daim ntawv thov thawj daim teb. Kev lag luam feem ntau siv nruab nrab viscosity PVA17-99, PVA20-99 thiab siab viscosity PVA24-99, PVA26-99 thiab lwm yam. Nws txoj kev loj hlob hloov kho yog viscosity siab. High-viscosity khoom tau siv dav hauv cov chaw ntug hiav txwv xws li sab hnub tuaj Tuam Tshoj thiab Qab Teb Tuam Tshoj, thiab yog cov hom tseem ceeb ntawm kev thov rau kev tsim kho roj hmab kev lag luam yav tom ntej.
(2) Textile slurry. PVA tsuas yog siv rau cov ntshiab polyester lossis polyester paj rwb xov, thiab muaj cov nplaum zoo thiab cov yeeb yaj kiab tsim cov khoom. Txawm li cas los xij, rau high-density pure cotton yarns, ib feem ntawm PVA thiab kua qaub acrylic tseem yuav tsum muaj kev sib xyaw. Cov hom loj uas siv hauv kev lag luam no yog PVA17-99 thiab PVA05-88. Cov lag luam lag luam nyob hauv Suav Teb Sab Hnub Tuaj, Shandong, Hubei, Sichuan, Chongqing thiab lwm qhov chaw.
Hauv lub ntiaj teb, tsis muaj cov nplaum ua tau pom uas pheej yig dua thiab zoo dua li PVA. Tuam Tshoj yog lub teb chaws textile nrog qhov loj tshaj plaws polyester ntau lawm nyob hauv lub ntiaj teb. Cov ntshiab ntshiab polyester lossis polyester / paj rwb sizing teb yog qhov tseem ceeb rau cov neeg siv khoom lag luam rau PVA. Txawm li cas los xij, kev lag luam txawv teb chaws ib puag ncig tau txwv tsis pub lossis txawm tias ua rau PVA ua kev qeeb, thiab hloov cov hmoov txhuv nplej siab hloov qee PVA. Yog li no, qhov kev faib ua feem ntawm PVA hauv kev lag luam tau nqis los ntawm 35% ntawm qib siab tshaj mus rau thaj tsam 21%. Nws kwv yees tias kev faib ua feem ntawm PVA kev siv hauv kev lag luam textile yuav txuas ntxiv zuj zus yav tom ntej, thiab yuav poob mus rau ib puag ncig 17% hauv 2015.
(3) Cov nplaum zoo. Ntxiv rau kev tsim kho cov nplaum, PVA kuj tseem siv tau ua ke nrog lwm cov khoom siv tshuaj lom neeg ua kom cov nplaum rau ntau yam kev siv, los yog ua cov txheej txheem tiv thaiv kom ua cov xim dawb, feem ntau siv rau hauv ntawv, ntoo, textiles, chaw ua haujlwm glues thiab qib siab txheej puag. Hauv xyoo 2009, kev noj haus ntawm PVA hauv daim teb no suav txog 11% ntawm tag nrho kev noj.
Ntxiv rau cov ntsiab lus qis ntawm cov xim siv tshuab latex dawb, cov nplaum ua kom tau zoo-tiav uas tau sib xyaw nrog cov txheej txheem thev naus laus zis thiab tus nqi siab ntxiv. Cov neeg siv cov khoom lag luam yog cov paub zoo txog kev lag luam txawv teb chaws xws li National Starch, Henkel, Wacker, etc. PVA yog siv rau cov khoom siv alcoholysis ib nrab, xws li PVA17-88 thiab PVA24-88. Cov neeg siv hauv daim teb no feem ntau muaj nyob hauv South China cheeb tsam ntawm East Tuam Tshoj, tshwj xeeb tshaj yog nyob hauv Jiangsu, Zhejiang, Fujian thiab Guangdong.
(4) Fiber. Velon fiber yog hluavtaws fiber ntau ua los ntawm kev siv PVA ua raw khoom. Nws muaj ntau yam xws li vinylon staple fiber, vinylon ntev fiber, siab zog thiab siab modulus, nruab nrab lub zog nruab nrab pwm thiab dej soluble fiber. Ntawm lawv, lub zog siab thiab cov qauv zoo fiber ntau muaj lub zog loj thiab modulus, muaj zog fiber ntau rub thiab cov kev ua tau zoo, thiab tau siv dav hauv cov khoom siv hauv tsev, cov khoom siv roj hmab, cov ntaub qhwv ntsej muag, yas hoses thiab lwm cov kab kev lag luam uas xav tau lub zog siab dua. Kev lag luam, tshwj xeeb hauv cov khoom siv cement thiab tsev. High-lub zog thiab siab-modulus vinylon fiber yog pom tau hais tias yog qhov zoo tshaj plaws "ntsuab" high-tech khoom los hloov asbestos ua cov khoom siv pob txha. Qhov hloov zuj zus ntawm kev thov rau cov neeg muaj zog thiab cov qauv ua ntau dua nyob hauv cov khw muag khoom txawv teb chaws twb tshwm sim, thiab tau siv dav hauv European Union, Tebchaws Asmeskas, Nyij Pooj, thiab cov tebchaws Esxias. Qee cov chaw lag luam nyob hauv Suav teb tau tsim cov khoom muaj zog thiab cov qauv hluav taws xob ntau, thiab muaj qee yam kev xa tawm, thiab lawv cov kev siv hauv kev tsim kho tau ua rau neeg nyiam mloog. Nrog rau qhov kev thov ntawm kev lag luam muaj zog thiab siab-modulus vinylon fiber ntau hauv tsev thiab txawv teb chaws, qhov kev thov rau PVA hauv kev lag luam fiber ntau yuav ntxiv mus.
(5) polyvinyl butyral (PVB). PVB zaj duab xis yog siv los ua cov iav interlayer zaj duab xis. PVB laminated iav muaj cov khoom zoo heev xws li kev nyab xeeb, kub txuag, tswj suab nrov thiab UV cais. Nws yog dav siv hauv tsev iav kev nyab xeeb. High-end PVB zaj duab xis yog siv hauv cov cua tshuab tsheb. Nws yog siv los ua cov iav ua rau lub dav hlau, tso tsheb hlau luam, nkoj, thiab lwm yam, thiab tseem tuaj yeem siv rau lub hnub ci hlwb thiab hnub ci txais.
Cov loj PVB cov khoom lag luam tawm txawv teb chaws suav nrog DuPont thiab Solutia. Vim tias siv tshuab rov qab, kev txhim kho PVB hauv tsev yog qeeb, thiab PVB zaj duab xis siv rau cov iav laminated tsuas yog tso siab rau kev siv ntshuam. Tag nrho cov peev xwm ntau lawm ntawm kev ua lag luam PVB yog li 25,000 t / a, thiab cov khoom lag luam txhua xyoo yog txog 15,000 tons.
Txij li cov hnub nyoog laus dua ntawm PVB zaj duab xis (50 xyoo) yog ntau tshaj ob npaug ntawm qhov EVA zaj duab xis (20 xyoo), lub hnub ci hnub qub photovoltaic cell ntim iav zaj duab xis tau hloov EVA zaj duab xis los ntawm PVB zaj duab xis. Hauv Suav teb, txawm hais tias tus nqi ntawm PVB zaj duab xis yog siab dua li ntawm zaj duab xis EVA, vim nws qhov kev ua haujlwm zoo dua qub thiab lub teb chaws nce kev txhawb nqa rau kev lag luam hnub ci, nqes dej PV cell ntim iav muaj qhov zoo rau PVB zaj duab xis noj.
Hauv ob peb xyoos tom ntej no, nrog txoj kev loj hlob sai ntawm photovoltaic hlwb thiab kev tsim kho tsheb thiab vaj tse, kev thov rau PVB resin nyob hauv kev lag luam hauv tsev yuav qhia kev loj hlob tawg, uas ua rau muaj kev nce siab hauv kev siv PVA hauv kev lag luam PVB.
(6) Cov ntawv txiv ntsej muag. PVA muaj cov nplaum ruaj khov rau cellulose, tsim cov zaj duab xis zoo, thiab zaj duab xis siab muaj zog. PVA feem ntau yog siv los ua cov ntawv saum npoo sizing tus neeg sawv cev, cov ntawv ci xim thiab cov dej txuas ntxiv rau hauv kev lag luam ntawv txhawm rau txhim kho abrasion tsis kam, folding tsis kam thiab rhuav lub zog ntawm daim ntawv, thiab txhim kho gloss, smoothness thiab luam ntawv adaptability. Domestically, tsis tsuas yog nruab nrab thiab qib qis daim ntawv saum npoo sizing tus neeg sawv cev yuav tsum siv PVA, tab sis kuj siv cov ntawv nruab nrab thiab qib siab xws li ntawv zoo li ntawv luam ntawv, ntawv thermal ntawv thiab ntawv luam ntawv carbonless. Cov khoom lag luam txawv mas suav nrog PVA-205 (0588), PVA-203 (0388), PVA-117 (17-99), thiab PVA-105 thiab BF-05 (05-99) ntawm Nyiv Kuraray Co., Ltd. thiab Changchun, Taiwan.
(7) Biodegradable PVA zaj duab xis. Dej-soluble PVA zaj duab xis yog hom tshiab ntawm cov khoom lag luam yas tau tshwm sim thoob ntiaj teb. Nws siv cov qauv-ua yeeb yaj kiab ntawm PVA, dej thiab txheeb raws roj ntsha yam ntxwv, thiab tuaj yeem xeb tag nrho mus rau hauv CO2 thiab H2O. Nws yog veritable ntsuab high-tech environmentally friendly ntim. khoom siv. Hauv Tebchaws Europe, Amelikas thiab Nyij Pooj, dej-soluble PVA zaj duab xis tau siv dav hauv kev ntim ntawm ntau yam khoom. Kev txhim kho ntawm dej-soluble PVA zaj duab xis hauv Suav teb tseem nyob hauv nws thaum tseem yau, thiab kev lag luam R&D tsuas yog pib rau tsib xyoos dhau los. Nws yog tsuas yog siv hauv ob daim teb ntawm paj ntaub thiab hloov xa dej (xim luam ntawv ntawm iav, ceramics, ntim hluav taws xob, thiab lwm yam). Kev siv txhua xyoo ntawm PVA hauv qhov kev hwm no yog kwv yees li 10,000 tons.
Tuam Tshoj yog tus neeg siv khoom loj ntawm plastics. Hauv tag nrho cov kev noj tawm ntawm ze li ntawm 10 lab tons ntawm ntau cov yeeb yaj kiab yas, yog tias PVA zaj duab xis hloov 5% ntawm tag nrho, qhov kev thov txhua xyoo yuav ncav cuag ntau pua txhiab tons. Raws li Tuam Tshoj maj mam dhau los ua raws li cov txheej txheem thoob ntiaj teb, kev tiv thaiv ib puag ncig kev tiv thaiv rau kev ntim khoom yog nce zuj zus. Qhov no muaj kev txhawb nqa muaj zog rau kev txhawb nqa thiab kev txhim kho ntawm cov dej-soluble PVA ntim cov yeeb yaj kiab, thiab nws lub peev xwm kev ua lag luam yog loj heev.
Patented tag nrho biodegradable zaj duab xis thiab lub hnab PVA, tag nrho cov khoom yog tsim los ntawm cov cuab yeej siv casting, Nws txawv ntawm cov tshuab moulding khoom qub, tag nrho cov tshuab moulding khoom tsis puv biodegradable. Peb tuaj yeem tsim pva zaj duab xis thiab hnab txhua lub pob tshab thiab ntau yam xim.
Xav paub ntau ntxiv PVA zaj duab xis thiab hnab khoom thov mus saib peb:
http://www.joyful-printing.net/pva-bag/
http://www.joyful-printing.com/pva-bag/
Lub Hoobkas nyob hauv chuangxin Industrial Park ntawm Leiyang City, Hunan xeev. 2 teev txoj kev tsheb ciav hlau khiav ceev los ntawm Shenzhen. Nrog tus txiv neej pheej yig thiab kev tsim kho tus nqi, yog li peb tuaj yeem muab cov khoom zoo nrog cov nqi pheej yig rau peb cov qhua.
Muaj ntau qib PVA dej-soluble film ntau lawm kab, ntau lub hnab ntim khoom thiab cov hnab khw hnab ntau lawm kab hauv peb lub hoobkas. Peb tau tsim PVA zaj duab xis ntawm ntau yam kub. Ntawm lawv, PVA qhov kub-txias zaj duab xis thev naus laus zis yog lub ntiaj teb ua yeeb yaj kiab thev naus laus zis, thiab muaj cov R & D muaj zog pab pawg thiab pab pawg tswj hwm hauv peb lub hoobkas. Peb yog lub tuam txhab tsim khoom siv technology tshiab tshwj xeeb hauv kev tshawb nrhiav, kev tsim khoom thiab muag cov dej-soluble film (PVA-polyvinyl cawv zaj duab xis).
PVA dej-soluble zaj duab xis muaj cov nyom zoo tshaj plaws, dej solubility thiab ib puag ncig zoo. Nws yog ib qho ntawm kev ua tiav cov ntaub ntawv ntsuab tshaj plaws hauv xyoo tsis ntev los no. Nws tau txais dav dav los ntawm ib puag ncig cov cai thiab cov neeg siv hauv tsev thiab txawv teb chaws, thiab yog siv ntau hauv cov ntim khoom, paj ntaub paj ntaub thiab dej hloov luam ntawv.
Piv txwv li: tshuaj tua kab, tshuaj chiv, dyes, tshuaj ntxuav tes, cov tshuaj tua dej, tshuaj ntxhua khaub ncaws, tshuaj ntxhua khaub ncaws, tshuaj lom neeg rau kev tu vaj, thiab lwm yam, tuaj yeem siv ua rapeseed, cog noob hnab, hnab khaub ncaws, khoom noj thiab hnab ntxuav tsev kho mob, kev lag luam Kev ntim ntawm cov khoom lag luam ntau yam xws li cov khoom siv thiab cov khoom siv hluav taws xob kuj tseem siv tau rau cov ntaub ntawv paj ntaub padding, hloov luam ntawv dej, thiab xaim zaj duab xis. Nyob rau tib lub sijhawm, lub tuam txhab ua tiav zoo tsim cov hnab ntim khoom thiab cov khw yuav khoom ntim khoom lag luam rau ntau daim ntawv thov xyoo no. Cov hnab ntim khoom raug thiab lub hnab ua lag luam ntawm ntau yam tshwj xeeb.
Lub chaw thev naus laus zis tshwj xeeb hauv cov khoom lag luam zoo, kev txhim kho technology thiab cov khoom lag luam tsim tshiab, thiab tau cog lus los muab cov qhua tuaj noj mov nrog cov khoom lag luam thiab cov kev pab cuam txaus siab.