Aikace-aikacen Tawada na Kariyar Muhalli na Tushen Ruwa a cikin Marufin Abincin da Aka Fitar da Hoton

Aikace-aikacen Tawada Kariyar Muhalli ta Tushen Ruwa A cikin Kundin Abinci

Takaitaccen Bayani:

A matsayin sabon nau'in marufi da bugu, babban fa'idar tawada mai tushen ruwa shine cewa baya ƙunshe da kaushi na halitta.Amfani da shi yana rage adadin mahaɗan ma'auni (VOCs), baya lalata lafiyar masana'antun tawada da ma'aikatan bugu, kuma yana haɓaka ingancin muhalli.Saboda haka, ana iya kiransa tawada mai son muhalli.Babban halayen tawada na tushen ruwa ba gurɓata muhalli bane, babu tasiri akan lafiyar ɗan adam, babu konewa, da aminci mai kyau.Ba wai kawai zai iya rage yawan guba a saman kayan da aka buga ba, ya sa ya dace don tsaftace kayan aikin bugu, amma har ma ya rage hadarin wuta da wutar lantarki ta haifar da ƙananan wuta.Baya ga kariyar muhalli, halayen bugu na tawada na tushen ruwa yana da kyau.Tawada na tushen ruwa yana da kwanciyar hankali, ba ya lalata farantin, aiki mai sauƙi, ƙananan farashi, mannewa mai kyau bayan bugu, ƙarfin ruwa mai ƙarfi da bushewa mai sauri.Ba a yi amfani da tawada na tushen ruwa kawai a cikin gyare-gyaren bugu da bugu na allo tare da babban yuwuwar haɓakawa.

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Halayen Ci Gaba Da Tawada Na Ruwa

Ana kiran tawada mai tushen ruwa a takaice.Hakanan ana kiran tawada mai sassaucin ra'ayi na ruwa.An yi shi da guduro mai narkewa da ruwa, pigment na halitta, sauran ƙarfi da abubuwan da ke da alaƙa ta hanyar niƙa fili.Ruwan ruwa guduro sabon nau'in tsarin guduro ne wanda ke amfani da ruwa maimakon sauran kaushi na halitta azaman matsakaicin watsawa.An haɗa shi da ruwa don samar da mafita.Bayan ruwan ya canza, an samar da kayan fim na resin.Gudun ruwa na tushen ruwa ba shine tushen ruwa da kansa ba amma kayan fim da aka samu bayan canjin ruwa.Waterborne polyurethane, a matsayin wakili, za a iya amfani da ko'ina a cikin coatings, adhesives, masana'anta coatings da karewa jamiái, fata karewa jamiái, takarda surface jiyya jamiái da fiber surface jiyya jamiái.Tawada mai tushen ruwa ya dace musamman don abinci, abin sha, magani, taba, giya, kayan wasan yara da sauran kayan marufi da bugu tare da tsauraran buƙatun tsafta, maye gurbin samfuran tushen ƙarfi a fagage daban-daban.A matsayin daya daga cikin abubuwa biyar na bugu, tawada mai tushen ruwa yana taka muhimmiyar rawa a cikin aikin bugu da ingancin bugu.Madaidaicin rabon tawada shine muhimmiyar hanyar haɗi don tabbatar da ingancin samfuran da aka buga.Tushen tawada ya kasance yana ɗaukar babban kaso a cikin bugu na sassauƙa saboda fa'idodinsa na kariyar muhalli da tattalin arziki.
Ƙarfin haɓakar masana'antar bugu na kore zai ƙara haɓaka gasa a kasuwar buga tawada.Yanzu masana'antun tawada sun aika da sigina cewa farashin kayan tawada ya tashi sosai, wanda hakan zai kara tsadar kayayyaki da sarrafa kayan aiki.Wannan ya samo asali ne saboda ƙarancin nau'ikan nau'ikan sinadarai a duniya, waɗanda sune mahimman albarkatun ƙasa wajen samar da tawada.Ya zuwa yanzu, tashin farashin danyen mai da abubuwan da ake amfani da su na man petrochemical shine babban dalilin tashin farashin tawada.To sai dai kuma ko da farashin mai ya ragu, domin masana’antar tawada ta fuskanci karancin albarkatun sinadarai, musamman danyen kayan kamar su nitrocellulose, acrylic acid, acetic acid da titanium dioxide, farashin tawada zai tashi ne kawai.A halin yanzu, ƙasashe da yankuna da suka ci gaba suna ƙoƙarin haɓakawa da amfani da tawada don maye gurbin tawada mai ƙarfi a hankali.Buga bugu tare da bugu na tushen ruwa a matsayin babban abin ci gaba ya haifar da yanayi a duniya.

Halayen Tsarin Tawada Mai Ruwa: Bambanci Tsakanin Wakili da Tawada Mai Ruwa.

Ingancin polyurethane don tawada yafi amfani da aliphatic polyester da aliphatic isocyanate a matsayin babban kayan roba a cikin tsarin shiri.Idan aka kwatanta da polyurethane aromatic, tsohon yana da mafi kyawun kwanciyar hankali na gani kuma fim ɗin bayan ƙirƙirar fim yana da mafi kyawun juriya na rawaya.Akwai ƙungiyoyin polar irin su carbamate, urethane, ester bond da ether bond a cikin sashin sarkar kwayoyin halitta na polyurethane don tawada, waɗanda ke samar da haɗin gwiwar hydrogen tare da ƙungiyoyin polar a saman nau'ikan nau'ikan polar daban-daban kamar dabbobi da PA, don haka suna samar da haɗin gwiwa tare da. takamaiman ƙarfin haɗin gwiwa.Bayan an yi resin polyurethane da aka gyara a cikin tawada, ana iya buga shi a saman madaidaicin filastik filastik tare da saurin mannewa.Polyurethane guduro don tawada gabaɗaya an shirya shi daga polyester ko polyether polyol, ester zobe diisocyanate da diamine sarkar tsawo.Saboda ƙaddamar da haɗin urea a cikin resin polyurethane, an kafa resin polyurethane urea (PUU), wanda ke da kyau wetting da watsawa ga pigment.
Gudun polyurethane don tawada yana da dacewa mai kyau tare da aldehyde ketone resin, resin chloroacetic, da dai sauransu ana iya ƙara shi da kyau a cikin tsarin tsari bisa ga ainihin halin da ake ciki don inganta ingantaccen aikin tawada.An shirya resin polyurethane don tawada ta hanyar gabatar da ƙungiyar urea a cikin ɓangaren kwayoyin polyurethane na al'ada, wanda ke inganta ƙarfin haɗin kai da kuma samar da fim na resin kanta.Gudun polyurethane na al'ada yana da kewayon rashin daidaituwa tare da kaushi na halitta.Duk da haka, a cikin aiwatar da shirya tawada, domin daidaita ruwa da danko na tawada, shi wajibi ne don ƙara barasa Organic kaushi, wanda zai ƙwarai rage kwanciyar hankali da guduro tsarin da kuma haifar da turbidity, flocculent hazo da sauran mamaki ga gargajiya. polyurethane guduro.A cikin sashin sarkar kwayoyin halitta na resin polyurethane don buga tawada, saboda kasancewar rukunin urea, za a iya narkar da resin polyurethane da barasa.Duk da haka, ya kamata a lura da cewa barasa sauran ƙarfi ne har yanzu a pseudo sauran ƙarfi.A cikin yanayin da ba a iya gani ba, barasa mai narkewa kawai yana ɓoye ƙwayar resin polyurethane, maimakon shigar da polarity na kwayoyin a cikin kwayoyin halitta kamar ainihin sauran ƙarfi, ta yadda tawada da aka shirya tare da resin polyurethane yana da ruwa mai kyau.
Babban bambanci tsakanin tawada mai tushen ruwa da tawada mai tushe shine sauran ƙarfi.Tawada mai tushen ruwa yana amfani da ruwa (45% - 50%) a matsayin sauran ƙarfi, tare da ƙarancin abun ciki na VOC da ƙarancin gurɓataccen muhalli;Tawada mai mai yana amfani da kaushi na halitta (toluene, xylene, barasa na masana'antu, da dai sauransu) a matsayin sauran ƙarfi.Tawada na tushen ruwa yana amfani da ruwa da ruwa mai narkewa a matsayin babban abubuwan da aka narkar da tushen launi;Hakanan akwai tawada mai rini da tawada a cikin tawada mai tushen ruwa, kuma pH gabaɗaya tsaka tsaki ne;Man kuma yana da tawada rini da tawada, kuma pH gabaɗaya acidic ne.Ba za a iya haɗa tawada mai tushen ruwa da tawada mai tushe a cikin bugu ɗaya ba.
A cikin tawada mai tushen ruwa, guduro mai tushen ruwa shine muhimmin sashi na tawada mai tushen ruwa.Kayan haɗin tawada kai tsaye yana rinjayar aikin mannewa, saurin bushewa, aikin hana lalata da juriya na zafi na tawada, kuma yana rinjayar aikin canja wurin tawada.Sabili da haka, zaɓin guduro mai dacewa da ruwa shine mabuɗin don shirye-shiryen tawada mai tushen ruwa.Dole ne ya kasance yana da dangantaka mai kyau tare da masu launi, babban mannewa mai sauri bayan bugu da kuma samar da fim, juriya na juriya, juriya mai kyau, juriya mai kyau, sauƙi mai sauƙi da kuma samar da fim.Gudun ruwa da aka fi amfani da su sun haɗa da guduro polyurethane na ruwa, guduro acrylic, polyvinyl barasa da guduro epoxy.
Gudun ruwa na polyurethane na ruwa yana tarwatsa cikin ruwa ta hanyar shigar da ƙungiyoyin hydrophilic a cikin sarkar kwayoyin polyurethane.Gudun ruwa na polyurethane na ruwa yana da fa'idodin amfani mai sauƙi, ingantaccen aiki, mannewa mai ƙarfi, babban sheki da kyakkyawan juriya na zafi.Zai iya dacewa da hanyoyi daban-daban na bugu, musamman don buga allo, akwatunan marufi na filastik da fina-finai masu haɗaka.