DPMA Qalabka Kiimikada ah ee Tayada Sare leh

Faahfaahinta alaabta

Di-pentanediol monomethyl ether acetate, oo sidoo kale loo yaqaano di-pentanediol monomethyl ether ethanoate, waa iskudhis organic ah oo leh qaaciddada kiimikada C9H18O4, miisaanka kelli 190.237, iyo lambarka CAS 88917-22-0. Walaxdaani waa dareere hufan oo aan midab lahayn, cufnaanta 0.97 g/cm³ at 25°C, barta karkaraya 200°C, dhibic toosh ah 85.6°C, iyo ur yar oo ether u eg. Waa guban kara oo suntu way yar tahay.

Di-pentyl ether acetate (DPMA) waa dareere dabiici ah oo muhiim ah oo leh sifooyin kiimiko oo gaar ah iyo codsiyo kala duwan. Kuwa soo socdaa waxay bixinayaan falanqayn faahfaahsan oo laga eegayo aragtida sifooyinka molecular, habka isku-dhafka, goobaha codsiga, badbaadada iyo ilaalinta deegaanka:

Codsiga alaabta

I. Codsiyada ku jira goobta dahaarka

1. Hagaajinta sinnaanta iyo dhalaalka: DPMA, sida dareere ah, waxay si weyn u wanaajisaa heerka, dhalaalka, iyo buuxinta filimka rinjiga. Waa dareere aad u fiican oo loogu talagalay dahaarka nitrocellulose, dahaarka amino alkyd, dahaarka resin acrylic, iyo dahaarka resin epoxy. Unugyadiisa waxaa ku jira kooxo kala duwan oo shaqeeya sida ether bonds, kooxaha alkyl, kooxaha carbonyl, iyo kooxaha ester, waxayna leedahay milmayn sare marka loo eego E-class iyo P-class .

2. Doorka sida gargaarka samaynta filimada: Rinjiga dubista amino-ku salaysan biyaha, propylene glycol methyl ether acetate (PMA) sida gargaarka filim-samaynta waxay hagaajin kartaa sifooyinka farsamada iyo dhalaalka daboolka. Ka dib marka lagu daro PMA, dhalaalka 60 ° ee filimka rinjiga wuxuu ka kordhay 94.6 ilaa 101.4, iyo qallafsanaanta qalinku waxay kordheen H ilaa 3H.

3. Dahaarka millatariga ku salaysan: PMA waxaa inta badan loo isticmaalaa in lagu milo sawir-qaadista wanaagsan iyo nadiifinta hadhaaga sawir-qaadista ee hore iyo dambe ee waferrada, hubinta nadiifnimada sare iyo xasilloonida daahan.

II. Codsiyada Goobta Wax-soo-saarka Elektrooniga ah

1. Nadiifinta sawir-qaadista: Bandhigyada dareeraha ah ee crystal-ka iyo wax-soo-saarka sawir-qaadista, PMA waxaa loo istcimaalaa dareere-resisist, wakiilka dharka, iyo ka saarista habka, hagaajinta saxnaanta habka.

2. Nadiifinta sare ee nadiifka ah ee aadka u nadiifka ah: Ethers-propylene glycol ethers-propylene glycol (oo ay ku jirto PMA) ayaa loo isticmaalaa reagents-nadiif sare oo nadiif ah oo isku dhafan. Nadaafadooda iyo nadiifnimadooda ayaa muhiim u ah waxqabadka korantada iyo isku halaynta alaabta.

3. Dib u soo kabashada dareeraha qashinka: PMA-ga ku jira wasakhda qashinka ee qashinka ah ayaa lagu soo celin karaa iyada oo loo marayo distillation, iyadoo dareeraha dib loo warshadeeyay uu gaarayo nadiif ah 99.29% iyo qoyaanka ≤ 0.100%, buuxinta shuruudaha dareerayaasha heerka elektiroonigga ah.

III. Codsiyada ku jira Polymer Synthesis iyo Sayniska Qalabka

1. dareerayaasha Polymer: Propylene glycol methyl ether acetate sida dareeraha polymer-ka waxay wanaajisaa milanka xabagta, gaar ahaan acrylic modified polyurethane (PUA) emulsions resin, yaraynta cufka molecular ee polymer-ka 30% -50%.

2. Diyaarinta nanomaterials: Diyaarinta nano daroogooyinka ka hortagga xoqidda, PMA oo ah kala-baxa waxay kor u qaadi kartaa xasilloonida silica sol, taas oo u oggolaanaysa nanoparticles in si isku mid ah loogu kala firdhiyo PMA iyo dhimista tirada qaybaha agglomerated.

Xaaladda kaydinta

I. Shuruudaha Kaydinta

1. Xakamaynta Heerkulka Heerkulka ugu wanaagsan ee kaydinta: Waxaa lagu talinayaa in lagu hayo meel qabow oo qalalan oo heerkulku aanu ka badnayn 30°C. Khatarta Heerkulka Sare: Heerkulka sare wuxuu sababi karaa uumiga ku uruura, taasoo keeni karta inay abuurmaan walxo qarxa, gaar ahaan meelaha qarsoon, markaa waa in laga fogaadaa.

2. Maareynta qoyaanka Deegaanka kaydinta waa in lagu hayaa engegan si looga hortago in qoyaanka soo dhex gala uu saameeyo xasilloonida alaabta. Tallaabooyinka Ka Hortagga Qaraxyada: Bakhaarka kaydinta waa in lagu rakibaa habab hawo-mareen oo aan qarxin si looga hortago uumiga xad-dhaafka ah inuu keeno qarax.

Kiimikadayada sida aadka ah loo iibiyo waxaa ka mid ah dareerayaasha warshadaha iyo dhexdhexaadiyeyaasha kiimikaad, sida Taxanaha Alcohol, Taxanaha Ether, Esters, Precursor Series, Acid-Ester Solvents, Bacrimiyeyaasha NPK-Biyaha-Milan, iyo Kiimikada kale ee Warshadaha. Alaabooyinkani waxay ka kooban yihiin sahay deggan, nadiifnimo la isku halayn karo, iyo heerar tayo leh oo joogto ah. Weydiinta waa la soo dhawaynayaa.