Rerekētanga i waenga i te Nylon me te PTFE

Ko te Nylon me te PTFE he polymers synthetic i hangaia e te tangata e tino whakamahia ana i roto i te ahumahi polymer.Ko te nylon he polyamide me te polymer he polymer fluoro.He nui te taumaha ngota o enei e rua, he thermoplastics hoki.PTFEhe wai phobic, he matū he iti ake te hohenga me te kaha o te kawe hiko, me te whakarea iti rawa o te waku.He mea hiraka te nylon, he mea rereke mo nga konganuku me nga konganuku kore, tae atu ki te parahi, te parahi, te rakau, te kirihou, me te rapa.

He aha te Nylon

Ko te Nylon he polymer aliphatic, he polyamide e tino whakamahia ana i roto i nga ahumahi maha.Ko nga nylons he thermoplastics.Ka whakamahia hei peera, me te kakahu kakahu.Ko te whakamahi i nga wa katoa o te nylon hei whakakapi mo te parahi, te parahi, te rino, me te konumohe.I tua atu, ka taea te whakamahi hei taonga rereke mo te rakau, kirihou, me te rapa hoki.

He rauemi hiraka te nylon i hangaia tuatahi e Wallace Carothers i te tau 1935. Ka puta nga nylons mai i te tauhohenga o te hexamethylenediamine me te waikawa adicarboxylic (1:1 ōwehenga) i te aroaro o te wai, i roto i te reactor.

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Ka whakamahia nga muka nylon hei hanga arai marena, aho i roto i nga taonga puoro, whariki, paipa, teneti, me nga taonga kakahu.Ko te ahua totoka o te nylon ka whakamahia ano i etahi ahumahi ki te whakaputa heru me nga waahanga miihini tae atu ki nga taputapu me nga miihini miihini.Ko te tangohanga, te whakarewa, me te werohanga ko nga tikanga e whakamahia ana hei whakaputa i nga nylons reanga miihini.

He aha te PTFE?

Ko te PTFE he fluoropolymer waihanga e mohiotia ana ano he polytetrafluoroethylene (PTFE).He rauemi i kitea aitua e tetahi tohunga kemu a Dupont, a Takuta Roy Plunkett i te tau 1960, i a ia e mahi ana ki te rapu rauemi rereke mo te whakamatao.

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He maha nga whakamahinga arumoni na runga i ona ahuatanga tinana me te matū.He rauemi hydrophobic.No reira, karekau he wai me nga wairewa kei roto te wai e whakamakuku i nga mata polymer.Ka whakamahia te polymer i roto i nga paraharaha tunu kore-rakau hei paninga.Ka whakamahia ano tenei hei whakahinuhinu na te mea ka whakaitihia te waku.Ko te hanganga hononga o te PTFE he tino pumau;no reira, he iti te tauhohenga matū me te ira koropuke teitei.I tua atu, he pai te kawe hiko.Ko te polymer he mea werawera, ko te tikanga ka huri ona ahuatanga ina whakamahana, whakamatao ranei.Kei a PTFE enei taonga whai hua katoa na tona hanganga ngota.

He aha te rereketanga i waenga i te Nylon me te PTFE?

• Ko nga mea matū kei roto i te nylon polymer ko te Carbon, Hydrogen, Oxygen, me te Nitrogen.polymer kei roto te waro me te Fluorine anake.

• Ko te nylon me te PTFE he topana intramolecular, ko tera o te nylon he "hononga hauwai" me te polymer ko "London dispersion forces."

• Ko te monomer (waewae tukurua) o te nylon ko (-NH-[CH2]5-CO-) ko te PTFE ko (-F2-CC-F2).

• Ko te Nylon he rauemi hydrophilic engari he rauemi hydrophobic te PTFE.

PS: Whakapaa mai ki a maatau mo nga tauira kore utu PTFE kua oti