Polystyrene (PS) muaj qhov zoo ntawm pob tshab, rwb thaiv tsev, yooj yim zas, tsis yooj yim rau nqus dej, tsis tshua muaj nqi tsim thiab ntau daim ntawv thov ntau yam. Tam sim no, Tuam Tshoj' s PS rov ua dua tshiab cov khoom siv hluav taws xob feem ntau yog siv cov khoom siv hluav taws xob pov tseg (siab polystyrene HIPS), cov khoom lag luam yas pob tshab niaj hnub (cov tshuaj polystyrene GPPS) pov tseg cov thawv noj su, ua npuas ntim ntim khoom (nthuav polystyrene EPS).
PS rov qab cov xwm txheej thiab cov cuab yeej siv tshiab:
Tam sim no, Nyij Pooj muaj qhov PS siab tshaj plaws ntawm 72% tus nqi, tom qab ntawd Kaus Lim Qab Teb thiab Tebchaws Europe, nce mus txog 60%. Vim tias lub tshuab ua tsis zoo rov ua haujlwm nyob rau hauv Suav teb, qhov rov qab kho tsuas yog 10% ~ 30%.
Cov khib nyiab ntawm cov polystyrene zoo tib yam thiab muaj kev cuam tshuam loj polystyrene tuaj yeem tawg ncaj qha, yaj, yaj yeeb thiab tawg tom qab tu.
Cov khoom siv rov ua dua tshiab feem ntau yog ib lub duav resin lossis ABS resin, uas yuav tsum tau txheeb kom zoo thaum lub sijhawm rov ua dua, thiab cov xim ntawm cov khoom siv rov ua dua qub daj thiab lub teeb xim qis dua.
Cov ntaub ntawv foamed (EPS) feem ntau ua lub tsev rwb thaiv tsev txheej thiab pov tseg cov khoom ntim khoom sab nraud. Qhov ntim txo (defoaming) thaum lub sij hawm rov ua dua tshiab tau muaj kev cuam tshuam zoo rau kev thauj tus nqi thiab kev rov ua dua tshiab. Txoj kev daws teeb meem, kev siv tshuab thiab kev siv cua sov yog siv rau cov ntim txo. Cov txheej txheem sib txawv muaj qhov sib txawv ntawm qhov zoo ntawm cov khoom siv rov ua dua tshiab.
Cov cuab yeej lub cev thiab tshuaj ntawm PS tau zoo los ntawm kev ntxuav, tsoo, yaj thiab extrusion, tab sis me me ntawm cov xov molecular tawg tau tawg thiab qhov txheeb ze molecular hnyav tau txo tom qab ob peb zaug ntawm cua sov. Qhov kev cuam tshuam lub zog thiab elongation yuav txo qis
Tom qab tau tawg ncaj qha, cov plua plav npuas khib nyiab yuav thauj nrog kev siv nyiaj txiag uas tsis tshua zoo li ua cov khoom ntim rau cov khoom siv tsev.
Rov qab los ntawm PS monomer, diesel roj thiab roj av los ntawm cua sov ua kom qhuav (kev tsim tshuaj lom neeg)
Cov tshuaj tiv thaiv ib puag ncig (cov cua kub thiab ntshav siab), cov kev cai siab rau cov haujlwm catalyst, kev xaiv thiab kev pab lub neej, kev phom sij ntawm cov organic solvents thiab tus nqi dej siab.
Daim ntawv thov ntawm PS siv cov khoom lag luam:
Huv si thiab cov khoom siv rov ua dua tshiab uas tsis muaj kev cuam tshuam yuav muab ncaj qha rau cov khoom siv tshiab.
Cov khoom siv rov ua dua tshiab feem ntau yog siv hauv cov khoom lag luam tsis sib cuag khoom noj, ntim cov thawv ntim khoom, qhov chaw ntim khoom, ntim khoom, khoom ua si thiab plua plav.
Styrene waterproof thiab noo-pov thawj txheej, tiv thaiv xim thiab phau ntawv tiv thaiv.
Cov khib nyiab PS ua npuas ncauj thiab cov cement yog ua los ntawm cov ntoo siab sib npaug, cov kab ntawv thiab cov faib.
Sib tov cov roj hmab hluavtaws los ua ib leeg, kov, thiab lwm yam.
Tam sim no, tus nqi rov qab siv cov khoom siv yas tau nce ntxiv hauv Suav teb, tab sis tus nqi rov qab siv dua ntawm cov plastics tsis tau muaj kev txhim kho hauv ntiaj teb Peb vam tias yuav pab txhawb kev txhim kho cov khoom lag luam yas thim rov qab los ntawm kev siv cov cai, se thiab lwm yam. Txawm li cas los xij, tsis muaj cov qauv coj los txiav txim npe, cov khoom lag luam zoo thiab kev ua raws li cov yas siv nyob hauv Suav teb. Txhawm rau kom tsis txhob muaj kev cuam tshuam zoo ntawm cov khoom siv rov ua dua tshiab, txheem kev tsim khoom thiab kev lag luam ntawm cov yas siv dua tshiab, thiab txhawb txoj kev loj hlob zoo ntawm kev lag luam thim rov qab los ntawm kev lag luam, National Technical Committee rau plam txheej txheem tau pib Tshawb nrhiav thiab kev txhim kho ntawm cov txheej txheem hauv teb chaws rau kev rov ua dua tshiab plastics.
Raws li qhov thib peb pob ntawm lub teb chaws tus qauv npaj thiab kho dua tshiab lub tswv yim xyoo 2019, polystyrene thiab cuam tshuam polystyrene rov ua cov plastics nrog cov khoom siv dav thiab cov ntim loj tau teev raws li qhov thib rau ntawm cov txheej txheem ntawm cov txheej txheem, yas siv rov qab ntu Part 6: polystyrene (PS) thiab cuam tshuam cov ntaub ntawv polystyrene (PS-I). Thawj daim qauv tsim ua yog Shanghai Yingke Industrial Co., Ltd. tus qauv txheej txheem ua haujlwm lub sijhawm yog los ntawm 2019 txog 2021. Nws nyob hauv qab txoj cai ntawm SAC / tc15.
Ib Daim Ntawv Tshuaj Lag Luam Hauv Tebchaws
Raws li kev txheeb cais, Tuam Tshoj' s Polystyrene tso tawm xyoo 2019 yuav tsum yog 2.665 lab tons, nce ntxiv 4% piv nrog tias xyoo 2018 ntawm 2.562 lab tons. Kev siv lub ntsiab yog ntau yam khoom lag luam lub plhaub, cov khoom siv rwb thaiv tsev, thiab lwm yam. Raws li kev siv xyoo 2018 los tiv thaiv kev txiav txim siab kev txiav txim siab, Suav teb av loj raug kev puas tsuaj ntau yam, thiab ntau lub chaw lag luam ncaj qha mus muag polystyrene. Xyoo 2018 thiab 2019, cov khoom lag luam ntshuam ntawm polystyrene tau ntau dua 1.15 lab tons, yuav luag ob npaug ntawm kev txhim kho txhua xyoo ua ntej.
Txij xyoo 2015 txog 2019, Tuam Tshoj' s tag nrho cov khoom siv rov qab los ntawm PS siv thawj zaug ruaj khov thiab tom qab ntawd nce siab, los ntawm 729500 tons hauv 2015 txog 1,2 lab tons hauv 2019, nrog nce ntawm 470500 tons, nce ntawm 64.50%.
Raug PS cov khoom siv rov ua dua tshiab yog siv rau cov haujlwm hauv qab no:
1.EPS rwb thaiv tsev tswj hwm yog qhov loj tshaj plaws ntawm PS cov khoom siv dua tshiab, thiab nws qhov kev siv piv yog 81.5%.
2.PS qis foaming coextrusion ntoo zoo li ntoo rau kev tsim kho thiab kho kom zoo nkauj yog qhov loj tshaj plaws thib ob ntawm PS cov khoom siv dua tshiab, thiab nws qhov kev noj haus piv yog 9.7%.
3.TPR kev lag luam kev lag luam sib xyaw ib qho me me ntawm PS rov ua dua tshiab txhawm rau txhawm rau txhawm rau txhav tawv. Txawm li cas los xij, vim lub siab xav tau ntawm kev txiav txim xa tawm ntawm qhov zoo ntawm ib leeg, kev noj haus ntawm EPS cov khoom siv rov ua dua tshiab nyob hauv kev lag luam ib leeg tsuas yog li 6%.
4.Cov khoom siv ktboards lag luam feem ntau siv PS cov khoom siv rov qab ua cov khoom siv raw, thaum ktboards qib siab xws li cov khoom ua si feem ntau yog sib xyaw nrog PS cov ntaub ntawv tshiab. Nrog rau kev lag luam tam sim no ntawm kev tshaj tawm ktboards maj mam txo qis, kev noj ntawm EPS cov khoom siv rov qab los kuj yuav raug txo kom tsawg, suav txog li 2% xwb.
5.PS txhaj tshuaj molding khoom xws li cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob, CD lub thawv, cov khaub ncaws pob tshab, cov ntawv sau thiab lwm cov teb, qhov sib npaug ntawm PS rov qab siv cov ntaub ntawv yog tsawg heev, qhov laj thawj tseem ceeb yog tias qhov zoo ntawm PS cov khoom siv rov qab yog qhov tsis siab, nws yog qhov nyuaj kom tau raws li kev ua tiav ntawm cov khoom.
Ua ntej xyoo 2017, muaj ntau dua 10000 PS rov qab ua cov yas ua cov chaw tsim khoom nyob hauv Suav teb, feem ntau tau faib rau hauv Guangdong, Jiangsu, Zhejiang, Shandong, Henan thiab Hebei. Kev lag luam siab tau tsawg, thiab ntau dua 95% ntawm lub lag luam' txhua xyoo muaj peev xwm ntau lawm hauv qab 3000 tons. Cov chaw lag luam nrog cov khoom tso tawm txhua xyoo ntau tshaj 10000 tons yog feem ntau yog Shanghai Yingke kev lag luam, Shandong Yingke kev tiv thaiv ib puag ncig, Dongguan Lianji, Foshan Huanfa, Dongguan Tongmei, Guanggang MBA, thiab lwm yam. Tom qab 2017, cuam tshuam los ntawm kev coj ua ntawm qhov txwv rau kev coj ua siv hnab yas pov tseg, qee qhov kev hloov kho pa yas kev lag luam tau hloov los tsim cov tuam txhab tsim khoom txawv teb chaws, Malaysia.
Ob Pab Pawg Ua Haujlwm tsim
Kev Koom Tes Hauv Tebchaws Txheej Txheem Plasma Standardization Technical Committee (SAC / tc15) tau tuav lub rooj sib tham ua haujlwm thib peb ntawm lub teb chaws cov txheej txheem rau cov txheej txheem thim rov qab uas muaj nyob rau hauv nroog Chengdu, xeev Sichuan txij thaum Lub Cuaj Hlis 3 txog 4, 2019. Pab pawg neeg ua haujlwm tau tsim los tsim cov txheej txheem sim pov thawj rau qee qhov cov qauv ntawm ABS, PS, PC thiab PA.
Sinochem Technology Co., Ltd. thiab Shanghai Sinochem Technology Co., Ltd. pab cov ntsuas kev soj ntsuam zoo ntawm Sinochem thiab Shanghai Chengde Environmental Protection Technology Co., Ltd.
Pab pawg ua haujlwm tsuas yog tshawb xyuas cov ntaub ntawv kev lag luam ntawm PS rov qab ua lag luam, sau cov kev cai, cov cai thiab cov qauv, thiab ua tiav cov qauv qauv thiab kuaj xyuas cov ntawv pov thawj ntawm daim ntawv no nyob rau lub sijhawm no, tiv toj ntau lub koom hauv PS kev tsim khoom siv thiab kev siv, xws li Ningbo dopoda, greenway, Anhui Huachen Plastics Co., Ltd. muab cov qauv coj mus kuaj, thiab nquag koom tes rau hauv kev tsim qauv ntawm PS regeneration particle standard.
