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Ethylene-vinyl acetate copolymer
Ethylene-vinyl acetate copolymer Chemical Properties
| Melting point | 75 °C |
| Boiling point | <200 °C |
| density | 0.948 g/mL pa25 °C |
| Fp | 260 °C |
| solubility | toluene, THF, uye MEK: soluble |
| form | pellets |
| Kugadzikana: | Yakagadzikana.Inopisa.Isingaenderani neakasimba oxidizing agents, mabhesi. |
| CAS DataBase Reference | 24937-78-8 |
| EPA Substance Registry System | Ethylene vinyl acetate polymer (24937-78-8) |
Safety Information
| Hazard Codes | Xn |
| Risk Statements | 40 |
| Safety Statements | 24/25-36/37 |
| WGK Germany | 1 |
| RTECS | 000000041485 |
| Autoignition Temperature | 500 °F |
| HS Code | 3905290000 |
Thylene-vinyl acetate copolymer Kushandisa Uye Synthesis
| Tsanangudzo | Ethylene-vinyl acetate copolymer ine yakanaka kupesvedzera kupikisa uye kusagadzikana kutsemuka kuramba, kupfava, yakakwirira elasticity, puncture kuramba uye kugadzikana kwemakemikari, yakanaka magetsi zvivakwa, yakanaka biocompatibility, uye yakaderera density, uye inoenderana nemafirita, maajenti anodzosa moto ane kuenderana kwakanaka. inonyanya kushandiswa kune zvigadzirwa zvepurasitiki. |
| Zvinhu zvenyama | Ethylene vinyl acetate inowanikwa sechena waxy solids mupellet kana poda fomu.Mafirimu ari translucent. |
| Uses | Flexible tubing, color concentrate, gaskets uye zvikamu zvakaumbwa zvemotokari, lenzi dzepurasitiki nemapombi. |
| Tsanangudzo | Elastomer inoshandiswa kunatsiridza adhesion zvimiro zvekupisa-kunyunguduka uye kumanikidza-sensitive adhesives, pamwe neyekushandura machira uye thermoplastics. |
| Nzira dzekugadzira | Huremu hwakasiyana-siyana hwema molecular ethylene vinyl acetate copolymers inogona kuwanikwa ne-high-pressure radical polymerization, yakawanda inoenderera mberi polymerization, kana mhinduro polymerization. |
| General Description | Poly (ethylene)co-vinyl acetate) (PEVA) chinhu chinodzoreredza murazvo chine yakanaka mechanicha uye yemuviri zvinhu.Iyo inonyanya kushandiswa se insulating zvinhu muwaya uye tambo indasitiri. |
| Pharmaceutical Applications | Ethylene vinyl acetate copolymers inoshandiswa semembrane uye inotsigirwa mune laminated transdermal drug delivery systems.Iwo anogona zvakare kuve akaverengerwa sezvikamu mubackings mune transdermal masisitimu.Ethylene vinyl acetate copolymers yakaratidzwa kuva inoshanda matrix uye membrane yekudzora kuendeswa kwe atenolol triprolidine, uye furosemide.Iyo sisitimu yekudzorwa kuburitswa kweatenolol inogona kuvandudzwa uchishandisa ethylene vinyl acetate copolymers uye plasticizers. |
| Safety | Ethylene vinyl acetate inonyanya kushandiswa mune topical mishonga yekushandisa se membrane kana firimu rinotsigira.Kazhinji inotaridzirwa sechinhu chisina chepfu uye chisingaiti chinopisa. |
| storage | Ethylene vinyl acetate copolymers yakagadzikana pasi pemamiriro ezvinhu uye inofanira kuchengetwa munzvimbo inotonhorera, yakaoma.Mafirimu ethylene vinyl acetate copolymers anofanira kuchengetwa pa 0-30 ° C uye pasi pe75% hunyoro hunoenderana. |
| Kusapindirana | Ethylene vinyl acetate haienderani neakasimba oxidizing agents uye mabhesi. |
| Regulatory Status | Inosanganisirwa muFDA Inactive Ingredients Database (intrauterine suppository; ophthalmic preparations; periodontal film; transdermal film).Inosanganisirwa mumishonga isiri yevabereki ine rezinesi muUK. |
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