PVC zaj duab xis qib
PVC zaj duab xis qib,
PVC rau zaj duab xis, PVC cob rau Flexible Vinyl Zaj duab xis, PVC cob rau Rigid Vinyl Zaj duab xis,
PVC zaj duab xis tsis muaj plasticizer yog hu ua vinyl zaj duab xis, hos PVC yas yog hu ua vinyl zaj duab xis.
1.Flexible Vinyl Zaj duab xis
Flexible vinyl zaj duab xis muaj qhov cuam tshuam zoo rau cov roj thiab roj tab sis yog oxygen permeable.Nws kuj muaj zoo cling, zoo heev clarity thiab puncture resistant.Cov khoom no ua tau yooj yim PVC haum rau ntim cov zaub mov kom cov nqaij thiab lwm yam khoom tsis zoo (thaum FDA pom zoo).Txawm li cas los xij, plasticized PVC muaj qhov qis qis, tsis tshua muaj tshuaj tiv thaiv, thiab muaj lub zog tensile qis dua li cov yas yas.
2.Rigid Vinyl Zaj duab xis
Rigid vinyl, tseem hu ua unplasticized polyvinyl chloride (uPVC), yog ib zaj duab xis muaj zog thiab hnav.Nws yog ib qho ntawm cov yeeb yaj kiab uas pheej yig tshaj plaws thiab muaj kev tiv thaiv rau ntau yam tshuaj.Feem ntau, uPVC tuaj yeem siv tau ntawm qhov kub txog li 60 ° C.Nws muaj zog tensile siab dua thiab modulus dua li PVC, tab sis muaj kev cuam tshuam tsis tshua muaj zog, thiab muaj kev ntxhov siab tawg nyob ntawm ib puag ncig.
PVC muaj ntau qhov kev txwv thiab qhov tsis zoo;lub plasticizer tuaj yeem ua rau lub caij txias thiab soften nyob rau hauv cov xwm txheej kub, uas ua rau muaj kev hloov pauv ntawm cov khoom thiab tuaj yeem cuam tshuam lub zog ntawm lub foob.PVC kuj tso tawm me me ntawm hydrogen chloride rau hauv huab cua thiab tsim cov pa roj carbon tso rau hauv cov khoom sib khi thaum rhuab.Vim li no, qhov cua zoo yuav tsum tau thaum sealing PVC shrink-wrap.
APPLICATIONS
PVC zaj duab xis yog siv los ua shrink thiab stretch qhwv rau kev lag luam thiab cov khoom siv thiab ua pallet qhwv, txawm li cas los xij, ntawm qhov me me dua li polyolefin films.Lwm yam kev siv muaj xws li hnab, liners, lub tes tsho lub raj mis, daim kab xev nplaum, daim ntawv lo, hnab ntshav thiab IV hnab.Nws yog feem ntau PVDC coated thaum txhim kho noo noo thaiv cov khoom yuav tsum tau.
FDA pom zoo PVC yog qhov kev xaiv zoo rau pob cov nqaij liab tshiab vim tias nws yog semi-permeable, lub ntsiab lus, nws tsuas yog txaus oxygen permeable kom cov khoom noj nqaij tshiab thiab tswj nws cov xim liab.Thaum pob tshab yog qhov tseem ceeb, PVC feem ntau siv.
Polyvinyl Chloride, hu ua PVC, yog ib qho ntawm cov khoom siv yas yas, cov zis tam sim no tsuas yog thib ob rau polyethylene.Polyvinyl chloride tau siv dav hauv kev lag luam, kev ua liaj ua teb thiab lub neej txhua hnub.Polyvinyl chloride yog ib qho polymer compound polymerized los ntawm vinyl chloride.Nws yog thermoplastic.Dawb los yog lub teeb daj hmoov.Nws yog soluble hauv ketones, esters, tetrahydrofurans thiab chlorinated hydrocarbons.Cov tshuaj tiv thaiv zoo heev.Tsis zoo thermal stability thiab lub teeb tsis kam, ntau tshaj 100 ℃ los yog lub sij hawm ntev raug tshav ntuj pib decompose hydrogen chloride, yas manufacturing yuav tsum tau ntxiv stabilizer.Hluav taws xob rwb thaiv tsev zoo, yuav tsis hlawv.
Qib S-700 feem ntau yog siv los tsim cov pob tshab pob tshab, thiab tuaj yeem nias rau ib qho nyuaj lossis ib nrab ntawm cov tawv tawv los yog daim ntawv rau pob, cov khoom hauv pem teb, cov zaj duab xis tawv rau hauv ob sab phlu (rau cov khoom qab zib wrapping ntawv lossis luam yeeb ntim zaj duab xis), thiab lwm yam. kuj yuav extruded rau ib qho nyuaj los yog ib nrab-ntxheej daim, daim ntawv, los yog irregularly zoo li tus bar rau pob.Los yog nws tuaj yeem raug txhaj tshuaj los ua cov pob qij txha, li qub, cov khoom siv hluav taws xob, cov khoom siv pib thiab cov hlab ntsha.
Specification
| Qib | PVC S-700 | Lus hais | ||
| Yam khoom | Guarantee tus nqi | Kev sim | ||
| Nruab nrab polymerization degree | 650-750 | GB/T 5761, Ntxiv A | K tus nqi 58-60 | |
| Pom tseeb qhov ceev, g / ml | 0.52-0.62 Nws | Q/SH3055.77-2006, Appendix B | ||
| Volatiles cov ntsiab lus (dej suav nrog), %, ≤ | 0.30 Nws | Q/SH3055.77-2006, Appendix C | ||
| Plasticiser nqus ntawm 100g resin, g, ≥ | 14 | Q/SH3055.77-2006, Appendix D | ||
| VCM residue, mg/kg ≤ | 5 | GB/T 4615-1987 | ||
| Kev tshuaj ntsuam % | 0.25mm mesh ≤ | 2.0 | Txoj Kev 1: GB/T 5761, Appendix B Method 2: Q/SH3055.77-2006, Cov ntawv ntxiv A | |
| 0.063 uamm mesh ≥ | 95 | |||
| Fisheye Number, No./400cm2, ≤ | 30 | Q/SH3055.77-2006, Appendix E | ||
| Tus naj npawb ntawm impurity hais, No., ≤ | 20 | GB/T 9348-1988 | ||
| Dawb (160ºC, 10 feeb tom qab), %, ≥ | 75 | GB/T 15595-95 | ||
