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E toru ngā huarahi e whakanui ake ai te tere o te whakamahana i te tere o te whakapūngao o te amine tuatoru
Ko te MOFAN TMR-2, e mōhiotia ana ko te nama 62314-25-4, he mea whakakorikori amine tuatoru e tere ake ai te whakamahana o ngā paipa mā roto i ngā mahi matua e toru: te tīmatanga tere o te tauhohenga, te whakapai ake i te whānui o te pahuka, me te tere ake o te whakamaroke. Ka taunekeneke tēnei whakakorikori ki ngā rōpū isocyanate, ka whakanui ake i tō rātou tauhohenga me te hanga ...Pānuihia atu -
Te tukanga whakaputa kiri-whaiaro a te polyurethane
Te ōwehenga o te Polyol me te isocyanate: He nui te uara hydroxyl o te Polyol, ā, he nui te taumaha ngota ngota, ka whakanui ake i te kiato hononga whakawhiti me te āwhina ki te whakapai ake i te kiato pahuka. Mā te whakarerekē i te taupū isocyanate, arā, te ōwehenga molar o te isocyanate ki te hauwai hohe i roto i te po...Pānuihia atu -
He rangahau mō te piripiri polyurethane mō ngā takai ngāwari me te kore e whakamaroke i te pāmahana teitei.
I hangaia he momo piripiri polyurethane hou mā te whakamahi i ngā polyacids ngota iti me ngā polyol ngota iti hei rauemi mata matua mō te hanga prepolymers. I te wā o te tukanga toronga mekameka, i whakaurua ngā polymers peka nui me ngā trimers HDI ki roto i te polyuretha...Pānuihia atu -
Te hoahoa mahi-teitei o ngā elastomers polyurethane me tā rātou tono i roto i te hangahanga teitei
He momo rauemi pūmua mahi-teitei ngā elastomers polyurethane. Nā ō rātou āhuatanga ā-tinana me ā-matū ahurei me te mahi whānui tino pai, he tūranga nui tō rātou i roto i te ahumahi hou. He whānuitia te whakamahinga o ēnei rauemi i roto i te maha...Pānuihia atu -
He polyurethane wai-kore-ionic me te pumau pai mō te whakamahinga i roto i te whakaotinga hiako
Ka ngāwari te kōwhai o ngā rauemi paninga polyurethane i te roanga o te wā nā te roa o te pānga ki te hihi ultraviolet, ki te wera rānei, ka pā ki tōna āhua me tōna roanga mahi. Mā te whakauru i te UV-320 me te 2-hydroxyethyl thiophosphate ki roto i te mekameka toronga o te polyurethane, ka hangaia he nonioni...Pānuihia atu -
He ātete ngā rauemi polyurethane ki ngā pāmahana teitei?
1 He ātete ngā rauemi polyurethane ki ngā pāmahana teitei? I te nuinga o te wā, kāore te polyurethane e ātete ki ngā pāmahana teitei, ahakoa he pūnaha PPDI noa, ko tōna rohe pāmahana mōrahi ka taea anake te tata ki te 150°. Kāore pea e taea e ngā momo polyester, polyether rānei noa te...Pānuihia atu -
Ka Huihui Ngā Tohunga Polyurethane o te Ao ki Atlanta mō te Hui Hangarau Polyurethanes 2024
Atlanta, GA – Mai i te 30 o Hepetema ki te 2 o Oketopa, ka manaaki te Omni Hotel i Centennial Park i te Huihuinga Hangarau Polyurethanes 2024, e huihui mai ana i ngā tohunga ngaio me ngā tohunga matua o te umanga polyurethane puta noa i te ao. I whakaritea e te American Chemistry Council...Pānuihia atu -
Te Ahunga Whakamua o te Rangahau mō ngā Polyurethane Kore-Isocyanate
Mai i te whakaurunga mai i te tau 1937, kua kitea ngā tono whānui o ngā rauemi polyurethane (PU) puta noa i ngā rāngai maha tae atu ki te kawe waka, te hanga, ngā matū hinu, ngā kakahu, te miihini me te hiko, te rererangi, te hauora, me te ahuwhenua. Ko ēnei m...Pānuihia atu -
Te whakarite me ngā āhuatanga o te pahuka mārō-haurua o te polyurethane mō ngā puringa waka mahi teitei.
He wāhanga nui o te kāpata te okiokinga ringa i roto i te motuka, e pana ana, e kukume ana i te tatau, e whakanoho ana hoki i te ringa o te tangata i roto i te motuka. Mēnā he āhuatanga ohorere, ina tukinga te motuka me te kakau, ka whakamahia te kakau ngohengohe polyurethane...Pānuihia atu -
Ngā Āhuatanga Hangarau o te Rehu Papa Polyurethane Paku Pakari
Ko te rauemi whakamahana polyurethane pahuka pakari (PU) he pūhui he wae hanganga auau o te wāhanga carbamate, i hangaia mā te tauhohenga o te isocyanate me te polyol. Nā tōna whakamarumaru wera pai me te mahi ātete wai, ka kitea he whānuitia ngā tono ki waho...Pānuihia atu -
Te whakaurunga o te kaihoko pahuka mō te pahuka mārō polyurethane e whakamahia ana i roto i te mara hangahanga
I te piki haere o ngā whakaritenga o ngā whare hou mō te penapena pūngao me te tiaki taiao, ka nui haere te hiranga o te mahi whakamahana o ngā rauemi hanga. I roto i ēnei, ko te pahuka pakari polyurethane he rauemi whakamahana pai rawa atu,...Pānuihia atu -
Te rerekētanga i waenga i te Polyurethane Wai me te Polyurethane Hinu
Ko te paninga polyurethane ātete-wai he mea hanga ki te polymer-rahi-ngota, he rauemi ātete-wai e pai ana mō te taiao, he pai te piri me te ātete-wai. He pai te piri ki ngā papa sima pērā i te raima me te kōhatu me ngā hua whakarewa. Ko te hua...Pānuihia atu
