PVC cob rau irrigation yeeb nkab
PVC cob rau irrigation yeeb nkab,
irrigation yeeb nkab raw khoom, pvc rau irrigation yeeb nkab,
PVC irrigation yeeb nkab:
(1) PVC irrigation yeeb nkab tau zoo heev acid kuj, alkali tsis kam thiab corrosion kuj, uas yog heev haum rau kev lag luam tshuaj.Lub phab ntsa ntawm PVC irrigation yeeb nkab yog du.Cov kua dej tsis kam yog me me, thiab nws cov coefficient roughness tsuas yog 0.009, uas yog qis dua lwm cov kav dej.Nyob rau hauv tib tus nqi ntws, cov yeeb nkab txoj kab uas hla yuav raug txo.Cov dej siab tsis kam, kev tiv thaiv sab nraud thiab kev cuam tshuam ntawm cov kav dej PVC yog qhov siab heev, uas tsim nyog rau kev tsim cov kav dej hauv ntau yam kev mob.Nws yog pheej yig thiab siv dav.
(2) PVC irrigation yeeb nkab tuaj yeem ua raws li cov txheej txheem kev loj hlob ntawm cov qoob loo kom paub txog kev siv dej niaj hnub.Kev siv dej ntawm irrigation tuaj yeem xaiv raws li qhov tshwj xeeb noo noo cov ntsiab lus ntawm cov qoob loo thiab av.
(3) PVC irrigation yeeb nkab yog qhov tseeb tshaj plaws tuaj yeem ua raws li cov yam ntxwv ntawm kweather tam sim no kom ua tiav cov dej kom raug thiab cov chiv rau hauv paus ntawm cov qoob loo irrigation cov tswv yim.Qhov no tuaj yeem txo cov haujlwm ntawm phau ntawv.
(4) PVC irrigation yeeb nkab tuaj yeem thauj cov dej tsim nyog siv dej ntau dua raws li kev xav tau ntawm cov qoob loo, uas tuaj yeem ua kom muaj dej raws sij hawm thiab tsim nyog ntawm cov qoob loo thiab nteg lub hauv paus ruaj khov rau kev txhim kho cov qoob loo ntawm cov qoob loo.
(5) Cov kav dej kav dej yog siv dav hauv nroog thiab nyob deb nroog hauv tsev thiab sab nraum zoov, kev txhim kho dej hauv nroog, kev ua liaj ua teb, kev lag luam brine, kev lag luam brine, kev lag luam dej hauv kev lag luam aquaculture, mine qhov cua, dej thiab cov dej ntws, kev tsim kho vaj tse. irrigation thiab lwm yam loj thiab me tej yaam num.
Polyvinyl Chloride (PVC) yog linear thermoplastic cob ua los ntawm polymerization ntawm vinyl chloride monomer.Vim yog qhov sib txawv ntawm cov khoom siv raw, muaj ob txoj hauv kev ntawm kev sib xyaw vinyl chloride monomer calcium carbide txheej txheem thiab cov txheej txheem roj av.Sinopec PVC tau txais ob txoj kev raug ncua, raws li Japanese Shin-Etsu Chemical Company thiab American Oxy Vinyls Company.Cov khoom muaj cov tshuaj zoo corrosion kuj, zoo heev hluav taws xob rwb thaiv tsev khoom thiab zoo tshuaj stability.Nrog cov ntsiab lus chlorine siab, cov khoom siv muaj hluav taws kub zoo thiab tua tus kheej.PVC yog yooj yim rau txheej txheem los ntawm extrusion, txhaj tshuaj molding, calendering, tshuab moulding, compressing, cam khwb cia molding thiab thermal molding, thiab lwm yam.
Tsis muaj
| Qib | PVC QS-1050P | Lus hais | ||
| Yam khoom | Guarantee tus nqi | Kev sim | ||
| Nruab nrab polymerization degree | 1000-1100 Nws | GB/T 5761, Ntxiv A | K tus nqi 66-68 | |
| Pom tseeb qhov ceev, g / ml | 0.51-0.57 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, ≥ | 21 | Q/SH3055.77-2006, Appendix D | ||
| VCM residue, mg/kg ≤ | 5 | GB/T 4615-1987 | ||
| Kev tshuaj ntsuam % | 2.0 | 2.0 | Txoj Kev 1: GB/T 5761, Appendix B Method 2: Q/SH3055.77-2006, Cov ntawv ntxiv A | |
| 95 | 95 | |||
| Fisheye Number, No./400cm2, ≤ | 20 | Q/SH3055.77-2006, Appendix E | ||
| Tus naj npawb ntawm impurity hais, No., ≤ | 16 | GB/T 9348-1988 | ||
| Dawb (160ºC, 10 feeb tom qab), %, ≥ | 80 | GB/T 15595-95 | ||
