MOFAN TMEDA (N,N,N',N'-tetramethylethylenediamine, CAS 110-18-9) wani sinadari ne mai ƙarfi na amine mai ƙarfi wanda aka ƙera don tsarin kera kumfa na kasuwanci. Wannan sinadari mai amfani da sinadarai yana aiki azaman mai haɓaka iska da kuma mai hana ruwa yayin sarrafa polyol na ruwa. Injiniyoyin tsari suna dogara da takamaiman kaddarorinsa don haɓaka samuwar fata mai santsi a cikin kumfa polyurethane. Ƙarin yana ba da ikon sarrafa motsin amsawa a cikin aikace-aikacen tsarin polyurethane daban-daban. Injiniyoyin tsari da masu sarrafa masana'antu suna bin wannan jagorar ƙira ta fasaha don inganta sigogin tsari yayin da suke kiyaye tsauraran ƙa'idodin aminci na aiki. Ƙwararrun masu siye kuma suna samun mahimman bayanai na fasaha game da kwanciyar hankali na kayan aiki da ingantaccen aiki. Wannan jagorar cikakke tana tallafawa ingantaccen sarrafa inganci a wurare daban-daban.

Muhimman Abubuwan Da Ake Ɗauka

Sifofin Sinadaran MOFAN TMEDA

Tsarin Kwayoyin Halitta da Ka'idojin Tsarkakewa

Babban halayen sinadarai namofan tmedabayyana aikinta a cikin samar da polyurethane. Wannan kwayar halitta tana da dabarar kwayoyin halitta C6H16N2. Tana nuna nauyin kwayoyin halitta na 116.2 g/mol. Ka'idojin ƙayyadaddun kasuwanci suna buƙatar mafi ƙarancin tsarki na 98.00%. Ruwan yana ɗauke da matsakaicin abun ciki na ruwa na 0.50%. Tsarkakakken ruwa yana kiyaye daidaiton amsawar sinadarai yayin sarrafawa. Tsarin sinadarai mai ƙanƙanta yana samar da babban yawan amine na uku. Wannan tsarin amine na musamman yana hanzarta amsawar polyurethane na asali.

Masu tsara suna kwatanta nauyin ƙwayoyin halitta masu haɓaka aiki don kimanta aikin motsi a cikin tsari. Tsarin kwayoyin halitta na musamman yana ba wa wannan mahaɗin sinadarai halaye na zahiri daban-daban.

Tsarin amine mai sauƙi yana ba da damar motsi cikin sauri a cikin tsarin polyol. Wannan tasirin tsarin yana hanzarta saurin amsawar gel.

Daidaito tsakanin Solvency da Polyol

Halayen jiki sun haɗa da bayyanar ruwa mai haske, mara launi zuwa bambaro. Kayan da aka yi amfani da su suna fitar da ƙamshi mai kama da ammonia. Ƙarin ruwa yana nuna 100% na narkewa a cikin ruwa, barasa, da kuma sinadarai masu narkewa. Cikakken narkewa yana inganta sarrafa ruwa gaba ɗaya yayin haɗa kayan. Tsarkakakken sinadarai yana hana rabuwar sinadaran aiki a cikin tankunan ajiya. Bayanin narkewa yana inganta halayen samfurin kumfa na ƙarshe kai tsaye.

Ana iya missible da ruwa, barasa, esters, da yawancin polyols

Ƙarfin da ke tattare da sinadaran da ke narkewa yana daidaita gaurayen polyol masu rikitarwa. Wuraren amine masu aiki suna samar da tasirin catalytic kai tsaye yayin haɗa ruwa. Babban sassauci yana ba masu tsara tsari ikon iya tantancewa. Masu tsara suna lura da tasirin ƙarfafawa mai ƙarfi a duk lokacin ajiyar abubuwan da ke cikin ruwa. Halayen sinadarai masu daidaito suna kare aikin mai kara kuzari akan tsawaita lokacin samarwa. Wannan tsarin kwayoyin halitta yana tabbatar da daidaiton waraka a aikace-aikace daban-daban.

Matsayinsa a matsayin Polyurethane Catalyst

Daidaiton Kinetic na Gelling da Blowing

Masu tsara tsarin suna nazarin sigogin ƙimar motsi don zaɓar ƙarin da ya dace don tsarin manufa.MOFAN TMEDAYana aiki a matsayin mai haɓaka polyurethane tare da daidaitaccen amsawa yayin samar da polyurethane. Haɗin da ke aiki yana nuna matsakaicin aiki gabaɗaya. Wannan yanayin matsakaici yana daidaita juyin halittar iskar gas tare da ƙirƙirar hanyar sadarwa ta polymer. Masu tsara tsarin suna daidaita sigogin motsi a hankali don hana samuwar lahani na tsari yayin sarrafawa. Yawan gelling yana haifar da tauri da wuri kafin cikar mold ya faru. Akasin haka, yawan busawa mai yawa yana haifar da ramukan filaye da tsarin tantanin halitta mai kauri. MOFAN TMEDA yana ba da bayanin martaba na matsakaici wanda ke magance matsalolin biyu a lokaci guda. Sarrafa ruwa ya kasance mai karko a duk yanayin zafi daban-daban na samarwa.

A cikin tsarin kumfa na polyurethane, ƙimar aikin gelling mai daidaiton k1 daidai yake da 4.19 (×10). Matsakaicin ƙimar aikin busawa k2 daidai yake da 1.14 (×10). Wannan ma'aunin motsi yana samar da rabon busawa/gelling daban na 2.72 (×10⁻¹). Masu tsara suna kimanta waɗannan alkaluman motsi don tsara dabarun tsara abubuwa masu ƙarfi. Misali, TEDA tana ba da gelling mai ƙarfi tare da k1 na 10.90 da k2 na 1.45. Akasin haka, PMDETA tana aiki a matsayin mai ƙarfafa busawa mai ƙarfi tare da k1 na 4.26 da k2 na 15.90. BDMAEE kuma yana fifita busawa, yana nuna k1 na 2.99 da k2 na 11.70. DMCHA tana nuna ƙarancin aiki gabaɗaya tare da k1 na 2.22 da k2 na 0.83. Matsakaicin busawa/gelling na TMEDA ya dace da rabon 2.72 (×10⁻¹) na DMAEMP. Wannan bayanin martaba mai daidaito yana ba da fa'idodi masu mahimmanci na sarrafawa wajen sarrafa haɓakar ƙwayoyin halitta da haɗa hanyoyin motsi a lokacin kowane matakin amsawar polymer.

Kunna Isocyanate-Hydroxil na Nucleophilic

Tsarin kwayoyin halitta mai ƙanƙanta yana ba wa MOFAN TMEDA halaye na musamman na aiki. Haɗin electron marasa rabawa akan ƙwayoyin nitrogen guda biyu suna jagorantar babban hulɗar amsawar nucleophilic. Wannan tsarin amine yana samar da hadaddun wucin gadi tare da ƙwayoyin carbon electrophilic a cikin ƙungiyoyin aiki na isocyanate. Saboda haka, wannan tsarin sinadarai yana rage ƙarfin kunnawa gabaɗaya na amsawar gelling urethane. Haɗin sinadarin nitrogen yana hanzarta ƙara hydroxyl ba tare da haifar da faɗaɗawa cikin sauri ba, ba tare da kulawa ba.

Cibiyoyin amine na tertiary suna aiki a matsayin tushen Lewis mai ƙarfi yayin polymerization. Tsarin sararin samaniya na abubuwan maye gurbin methyl yana ba da damar samun nau'ikan halittu masu amsawa ba tare da wata matsala ba. Wannan tsari na sarari yana hanzarta yawan juyawar barasa na biyu ba tare da rage lokacin kirim ɗin cakuda ruwa ba. Saboda haka, samuwar hanyar sadarwa ta urethane yana ci gaba cikin sauƙi tun daga farkon zubar ruwa ta hanyar rushewar mold na ƙarshe.

Injiniyoyin tsari suna amfani da wannan takamaiman hanyar kunnawa don inganta dabarun tsarawa na zamani. Tasirin inductive na asali yana ƙara yawan electrons na gida a kusa da wuraren aiki da aka nufa. Wannan tasirin lantarki yana haɓaka daidaiton fata a saman sassan polyurethane da aka ƙera. Bugu da ƙari, tasirin steric na kwayoyin halitta yana daidaita rabuwar lokaci yayin faɗaɗa hanyar sadarwa ta polymer. Wannan tasirin steric na gida yana daidaita yawan haɗin gwiwa a duk tsawon zagayowar warkarwa. Wannan tasirin catalytic mai haɗin gwiwa yana tabbatar da daidaiton yawan tsakiya, kyawawan halaye na zahiri, da ƙarewar saman mai santsi. Masu tsara suna samun fa'idodi bayyanannu na aiki ta hanyar bayanin maganin da ake iya faɗi da kuma halayen exotherm mai sarrafawa. Kowane matakin amsawa na farko yana amfana daga wannan tsarin amine mai haɓaka aiki na uku.

Aikace-aikace a cikin Tsarin Polyurethane

Samar da polyurethane ya dogara sosai akan abubuwan da aka yi niyya don sarrafa halayen kayan.MOFAN TMEDAYana aiki a matsayin mai haɓaka sinadarin amine mai amfani a fannoni daban-daban na masana'antu. Tsarin amsawar sa mai daidaito yana tallafawa tsarin kumfa polyurethane daban-daban, gami da kumfa mai laushi, kumfa mai tsauri, da kumfa mai tsauri na polyurethane. Tsarin ruwa yana amfana sosai daga ingantaccen yanayin kwarara yayin sarrafawa. Tsarin amine mai aiki na wannan ƙari yana haɓaka warkarwa ta saman ba tare da haifar da rugujewar ƙwayoyin halitta ba da wuri. Masu tsara suna amfani da waɗannan halayen sinadarai a duk faɗin masana'antar sinadarai ta duniya don inganta yawan aiki na tsarin gabaɗaya. Daidaito mai kyau tsakanin matakan amsawa yana samar da daidaiton halaye na zahiri a cikin kowane tsarin kumfa. Ƙungiyoyin fasaha sun dogara da wannan mai haɓaka don kiyaye daidaiton yawa a duk lokacin zagayowar samarwa.

Tsarin Kumfa Mai Tauri da Semi-Rigid

Masu tsarawa suna zaɓar takamaiman abubuwan busawa da gelling don cimma maƙasudin yawan da ake buƙata. A cikin kumfa mai ƙarfi na polyurethane, tsarin kumfa mai yawan datti yana buƙatar faɗaɗa ƙwayoyin halitta iri ɗaya. Masu tsarawa suna tsara dabarun tsarawa don haɗa wannan amine na musamman don inganta halayen kumfa. Ƙarin yana haɓaka samuwar fata cikin sauri akan bangon mold na waje. Wannan Layer na fata mai sauri yana rufe tsakiyar ruwa mai faɗaɗa yadda ya kamata. Saboda haka, allunan da aka sarrafa suna samun ingantaccen tsari da kuma kammala saman da tsabta.

Injiniyoyin tsari suna amfani da dabarun tsara tsari na musamman don daidaita tsarin da ba shi da tsauri. Sassan cikin mota, kamar madafun hannu da dashboards, suna buƙatar laushin fata akan manyan cores na tsarin. Tsarin amine mai aiki yana hanzarta haɗin saman gida. Wannan amsawar ta gida yana ƙirƙirar layin fata mai ɗorewa yayin da yake kiyaye halayen matashin kai na ciki. Bugu da ƙari, tsarin kumfa mai laushi na thermoplastic yana samun fa'idodi na injiniya daban-daban. Daidaitaccen tasirin catalytic yana hana ramukan saman, yana samar da halayen kumfa masu daidaito a cikin ƙirar geometric mai rikitarwa. Masu tsarawa suna gyara kowace tsarin polyurethane don haɓaka ingancin cika mold da rage yawan ɓarna. Injiniyoyin tsari suna lura da fa'idodi daban-daban na sarrafawa a cikin aikace-aikacen fitarwa mai yawa yayin gudanar da samarwa cikin sauri, suna tabbatar da ingancin masana'antu mai maimaitawa.

Amfani da Karin Bayani tare da MOFAN 33LV

Injiniyoyin suna haɗa na'urorin haɓaka sinadarai na biyu don inganta sigogin sarrafawa. Haɗa wannan na'urar haɓaka sinadarai tare da MOFAN 33LV yana ƙirƙirar tsarin haɗa sinadarai masu ƙarfi. MOFAN 33LV yana samar da ƙarfin aikin gelling ta hanyar triethylenediamine a cikin dipropylene glycol. Tasirin steric na amine na uku yana gyara motsin iska na farko. Wannan dabarar ƙirƙirar na'urori masu haɓaka sinadarai biyu tana cimma cikakkun bayanan haɓakar kumfa kuma tana rage lokutan rushewa sosai. Daidaitaccen aunawa yana tabbatar da haɗin kai mafi kyau a duk lokacin aikin haɓakar kumfa.

Tsarin haɗakar mai kara kuzari yana sake fasalin yanayin tantanin halitta a cikin kumfa mai sassauƙa na polyurethane. Ƙananan tagogi masu kama da juna suna tasowa a lokacin farkon matakan kirim da gel. Wannan tsari mai karko yana ƙara ƙarfin ɗaukar nauyi yayin da yake rage haɗarin raguwa. Masu sarrafa shuke-shuke suna lura da lanƙwasa mai santsi yayin manyan ayyukan masana'antu. Bugu da ƙari, aikace-aikace masu yawa suna faɗaɗa zuwa sassan masana'antu marasa kumfa. Haɗin sinadarai yana aiki azaman mai haɓaka aiki mai girma a cikin tsarin epoxy-amine mai ƙarancin zafi. Masana'antar elastomer tana amfana daga haɓakar hanyar sadarwa ta polymer da ake iya faɗi. Manne na katako na polyurethane masu sauri kuma suna amfani da wannan tsarin amine na musamman don haɓaka samuwar haɗin gwiwa a ƙarƙashin yanayi na yanayi. Masu tsara sinadarai suna daidaita waɗannan dabarun tsara don biyan buƙatun sarrafawa masu tasowa a cikin aikace-aikacen masana'antu da yawa, suna haifar da ci gaba da ƙirƙira.

Fa'idodin Sarrafawa da Jagororin Ajiya

Inganta Tsarin Kumfa

MOFAN TMEDA yana inganta tsarin kumfa mai ƙwayoyin halitta yayin sarrafa polyurethane. Mai kunna sinadarin amine yana ba da tasirin daidaita kumfa mai ƙarfi akan kumfa mai ƙarfi a cikin matrix ɗin ruwa na polyurethane mai faɗaɗa. Haɗawa yana gudana cikin sauƙi ba tare da rugujewar kumfa ba ko asarar iskar gas. Wannan tasirin injiniya yana haifar da ƙananan girman ƙwayoyin halitta iri ɗaya a cikin samfuran kumfa da aka gama. Gwajin tsarin yana tabbatar da inganci mai daidaito, yana taimaka wa masu tsarawa su sami halayen kumfa mafi kyau ba tare da lahani a fatar saman ba. Injiniyoyin tsari suna dogara da wannan tsarin da aka daidaita don inganta daidaiton ƙwayoyin halitta a cikin layukan kumfa mai yawa.

Zaɓin mai haɓaka mai kyau yana ba da manyan fa'idodin sarrafawa a cikin samar da kumfa mai tauri. Tsarin tantanin halitta iri ɗaya yana haɓaka halayen kariya na zafi da ƙarfin jiki gabaɗaya. Duk da haka, rashin isasshen adadin yana haifar da fa'idodi daban-daban na sarrafawa. Lodawa da yawa yana hanzarta haɓakar tantanin halitta da sauri, yana damun tsarin kwayoyin halitta da ƙirƙirar ƙarancin yawan tsakiya. Wannan tasirin mai haifar da tasirin dumama na gida da rashin fa'idodi na tsari a cikin manyan tubalan kumfa. Ƙungiyoyin hada polyurethane suna daidaita matakan lodi a hankali don kula da cikakkun bayanan magani.

Bayanin Tsaro, Sarrafawa, da Marufi

Masu sarrafa masana'antu dole ne su aiwatar da tsauraran matakan la'akari da muhalli da aminci yayin sarrafa sinadarai masu aiki. MOFAN TMEDA yana nuna halaye na musamman na aiki waɗanda ke buƙatar ƙa'idodi na musamman na hana gurɓatawa. Dole ne masu aiki su sa ido kan yanayin zafi da yanayin zafi na muhalli a cikin wuraren ajiya. Kula da muhalli mai kyau yana kare tsarkin amine mai aiki daga lalacewar danshi a cikin yanayi.

Tsaron aiki mai kyau yana hana rauni a wurin aiki a kusa da kwantena masu buɗaɗɗen ruwa. Zubewar ruwa yana haifar da haɗarin aminci mai tsanani kusa da hanyoyin zafi mai yawa ko kayan lantarki. Ƙungiyoyin masana'antu dole ne su adana kwantena da aka rufe a wurare masu sanyi, bushe, da iska. Tsarin kwantena da aka adana dole ne ya kasance nesa da zafi, danshi, tsayayye, da kuma acid mai ƙarfi. Zaɓuɓɓukan samar da kayayyaki na kasuwanci na yau da kullun sun haɗa da ganga na ƙarfe 160 kg ko marufi na musamman wanda aka tsara bisa ga takamaiman buƙatun abokin ciniki don aikace-aikacen masana'antu.

MOFAN TMEDAYana aiki a matsayin mai daidaita sinadarin amine na tertiary don tsarin kumfa polyurethane mai yawa. Sifofin sinadarai nasa suna haɓaka haɓakar fata mai santsi da ingantaccen sarrafa ruwa a cikin aikace-aikacen masana'antu daban-daban. Masu sarrafa masana'antu dole ne su kiyaye tsauraran ka'idoji na aminci saboda yanayin ƙonewa na Class 3. Tsarin sarrafawa mai kyau da daidaitattun rabon lodin mai kara kuzari suna kare kwanciyar hankali na tsarin kumfa yayin gudanar da samarwa. Injiniyoyin sinadarai suna samun fa'idodi na aiki daban-daban ta hanyar aiwatar da MOFAN TMEDA a cikin dabarun tsarawa na musamman. Wannan mai kara kuzari mai tsafta yana ba da ingantaccen sarrafa motsi yayin halayen warkarwa masu rikitarwa. Masu tsarawa suna samun ingantaccen aiki ta hanyar haɗa wannan ƙari tare da MOFAN 33LV don layukan samar da kumfa polyurethane mai girma.

Tambayoyin da ake yawan yi akai-akai