Cov khoom
Ethylene-vinyl acetate copolymer
Ethylene-vinyl acetate copolymer tshuaj muaj zog
| Melting point | 75 ° C |
| Boiling point | <200 ° C |
| ceev | 0.948 g / mL ntawm 25 ° C |
| Fp | 260 ° C |
| solubility | Toluene, THF, thiab MEK: soluble |
| daim ntawv | pellets |
| Kev ruaj ntseg: | ruaj khov.Hluav taws kub.Incompatible nrog muaj zog oxidizing neeg sawv cev, hauv paus. |
| CAS DataBase Reference | 24937-78-8 ib |
| EPA Tshuaj Registry System | Tom ntej: Ethylene Vinyl Acetate Polymer (24937-78-8) |
Cov ntaub ntawv kev nyab xeeb
| Hazard Codes | Xn |
| Risk Statements | 40 |
| Cov lus hais txog kev nyab xeeb | 24/25-36/37 ib |
| WGK Germany | 1 |
| RTECS | ib 00000041485 |
| Autoignition Kub | 500 ° F |
| HS Code | 3905290000 ib |
Thylene-vinyl acetate copolymer Siv thiab Synthesis
| Kev piav qhia | Ethylene-vinyl acetate copolymer muaj kev cuam tshuam zoo thiab kev ntxhov siab tawg, softness, siab elasticity, puncture tsis kam thiab tshuaj stability, zoo hluav taws xob, biocompatibility zoo, thiab tsis tshua muaj ntom, thiab yog sib xws nrog fillers, nplaim retardants agents muaj zoo compatibility. feem ntau yog siv rau cov khoom yas. |
| Lub cev muaj zog | Ethylene vinyl acetate muaj xws li cov khoom siv dawb hauv cov pellet lossis hmoov.Zaj duab xis yog translucent. |
| Siv | Flexible tubing, xim concentrates, gaskets thiab molded qhov chaw rau autos, yas lo ntsiab muag thiab twj tso kua mis. |
| Txhais | Ib qho elastomer siv los txhim kho cov khoom adhesion ntawm kub-melt thiab siab-rhiab nplaum nplaum, nrog rau kev hloov pauv txheej thiab thermoplastics. |
| Txoj kev tsim khoom | Ntau qhov hnyav molecular ntawm random ethylene vinyl acetate copolymer tuaj yeem tau txais los ntawm kev kub siab radical polymerization, bulk nruam polymerization, los yog kua polymerization. |
| Kev piav qhia dav dav | Poly (ethylene-co-vinyl acetate) (PEVA) yog cov khoom siv hluav taws xob uas muaj cov khoom siv zoo thiab lub cev.Nws yog siv los ua cov khoom siv insulating hauv kev lag luam hlau thiab cable. |
| Kev siv tshuaj | Ethylene vinyl acetate copolymer yog siv los ua daim nyias nyias thiab cov nraub qaum hauv laminated transdermal tshuaj xa cov tshuab.Lawv kuj tuaj yeem muab tso ua ke ua cov khoom siv hauv kev txhawb nqa hauv cov txheej txheem transdermal.Ethylene vinyl acetate copolymer tau pom tias yog ib qho zoo matrix thiab daim nyias nyias rau kev tswj tus me nyuam ntawm atenolol triprolidine, thiab furosemide.Lub kaw lus rau kev tswj kev tso tawm ntawm atenolol tuaj yeem tsim ntxiv siv ethylene vinyl acetate copolymers thiab plasticizers. |
| Kev nyab xeeb | Ethylene vinyl acetate feem ntau yog siv nyob rau hauv cov tshuaj pleev ib ce daim ntaub ntawv raws li ib tug membrane los yog zaj duab xis thaub qab.Feem ntau nws raug suav hais tias yog ib qho tsis muaj tshuaj lom thiab tsis muaj tshuaj lom. |
| khaws cia | Ethylene vinyl acetate copolymer yog ruaj khov nyob rau hauv ib txwm muaj mob thiab yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav.Cov yeeb yaj kiab ntawm ethylene vinyl acetate copolymers yuav tsum khaws cia ntawm 0-30 ° C thiab tsawg dua 75% txheeb ze av noo. |
| Kev tsis sib haum xeeb | Ethylene vinyl acetate yog incompatible nrog muaj zog oxidizing tus neeg saib xyuas thiab hauv paus. |
| Kev tswj hwm xwm txheej | Muaj nyob rau hauv FDA Inactive Ingredients Database (intrauterine suppository; ophthalmic preparations; periodontal film; transdermal film).Muaj nyob rau hauv cov tshuaj nonparenteral ntawv tso cai nyob rau hauv UK. |
Sau koj cov lus ntawm no thiab xa tuaj rau peb
