Zvigadzirwa

Yemhando indekisi:

Chitarisiko: light yellow yellow crystalline powder

Zvemukati: ≥ 99%

Nzvimbo yakanyunguduka: 77-79 ° C

Nzvimbo yekubikira: 219-221 ° CMM Hg

Flash poindi: 219-221 ° C / 18mm

Mirayiridzo:

1. Inoshandiswa zvakanyanya senge rudzi rweusina chepfu unopisa hunodzikamisa PVC uye 1,3-diphenyl acrylonitrile (DBM). Seye nyowani yekubatsira kupisa inodzora yePVC, ine yakakwira transmittance, isina-chepfu uye isina kunaka; inogona kushandiswa ne solid kana liquid calcium / zinc, barium / zinc uye zvimwe zvinopisa zvinopisa, izvo zvinogona kuvandudza zvakanyanya kuchenesa kwekutanga, kujekesa, kugadzikana kwenguva refu kwePVC, pamwe nekunaya uye "zinc kupisa" panguva yekugadzirisa. Inoshandiswa zvakanyanya mune zvekurapa, kurongedza chikafu uye zvimwe zvisina-chepfu zvinoonekera zvigadzirwa zvePVC (senge mabhodhoro ePVC, machira, mafirimu akajeka, nezvimwewo)

2. Kuunzwa kwecalcium uye zinc zvinodzikamisa Zinc uye cadmium hazvisi-zvine chepfu zvinogadzirisa. Iyo ine yakanakisa yekupisa tembiricha uye lubricity, yakanakisa yekutanga coloring uye kugadzikana kwemavara.

Iko kudziya kwemafuta kweiyo yakachena calcium / zinc inogadzikana haina kusimba, saka akasiyana emakomputa anofanirwa kuumbiridzwa zvinoenderana neyakagadziriswa tekinoroji uye kushandiswa kwechigadzirwa. Pakati pevabatsiri vanobatsira, β - diketoni (kunyanya stearoyl benzoyl methane uye dibenzoyl methane) zvakakosha mucalcium / zinc composite stabilizers.

Synthetic nzira

Iyo yekutanga indasitiri yekugadzira maitiro yaive seinotevera: kushandisa solid sodium methoxide sechigadziro, acetophenone uye methyl benzoate yakaitwa naClaisen condensation mu xylene kuwana dibenzoylmethane. Nekuti iyo yakasimba sodium methoxide poda inogona kupisa uye inoputika, uye zviri nyore kuora kana uchinge wasangana nemvura, iyo solvent inofanira kushaiswa mvura isati yawedzera, uyezve iyo yakasimba sodium methoxide inofanira kuwedzerwa pasi pekudzivirirwa kwe nitrogen mushure mekutonhora kusvika 35 ℃. Maitiro ekuita anofanirwa kuchengetedzwa neNitrogen, uye kushandiswa kwesodium methoxide yakasimba ine njodzi huru yekuchengetedza uye simba guru rekushandisa. Iyo molar ratio yeacetophenone: methyl benzoate: solid sodium methoxide yaive 1: 1.2: 1.29. Ivhareji-yenguva-imwe goho yechigadzirwa chaive 80%, uye gohwo rakazara reamai doro raive 85.5%.

Iyo nyowani yakakura-yekugadzira yekugadzira maitiro ndeinotevera: 3000l xylene solvent inowedzerwa kune iyo reactor, 215kg solid sodium hydroxide inowedzerwa, inomutsa inotanga, tembiricha inokwidzwa kusvika 133 ℃, uye yakaderera chikamu chidiki mvura inopwa; ipapo 765kg methyl benzoate inowedzerwa, tembiricha inokwidziridzwa kusvika 137 ℃, 500kg acetophenone inowedzerwa kudonha, uye tembiricha yekuita inochengetwa mukamuri tembiricha 137-139 ℃. Nekuwedzera kweacetophenone, iyo yekudyara mvura zvishoma nezvishoma inova mukobvu. Iyo ye-chigadzirwa methanol inobviswa kubva pakuita maitiro uye maitiro anoenderera munzira yakanaka. Iyo yakasanganiswa solvent yemethanol uye xylene inoputika. Chengeta kwemaawa maviri mushure mekudonha. Kana paine panenge pasina distillate, mhinduro inopera.

Kurongedza: 25kg / bhegi.

Kuchengetedza kwekuchengetedza: chitoro mune inotonhorera, yakaoma uye yakachena mweya yekuchengetera.

Kugona kwegore negore: 1000 matani / gore