Polypropylene Tātai. Āhuatanga me tono o polypropylene

Na waerau hanga i enei rauemi, tūemi whare me oko - ko te wāhanga nui o te ahumahi me te ora te tangata i roto i te whānui tenei. rauemi Natural, kāore, tino mauriora ki roto i to ratou whakamahi. Na reira, i ki te ako ki te synthesize rauemi horihori e whai he maha o ngā āhuatanga hangarau nui te iwi. Ko tētahi o ēnei ko te polypropylene. ka tātai Chemical o tenei pūhui, rawa ona āhuatanga, me te hanganga o te rāpoi ngota e whakaaro i roto i te tuhinga.

Waerau - he whakamārama whānui o

Tenei piha o te pūhui ngā hunga e whai he uara nui rawa o te taimaha rāpoi. No te mea waerau - he matū matatini e ngā o ngā waeine waetahi tukurua maha, e taea e i maha ngā tekau ki rau, mano ranei milioni.

kia whakanuia te rōpū e whai ake nei i roto i waerau katoa:

1. takenga Natural - pūmua, rāpoi waikawa karihi o ATP, a na i runga i.
2. Artificial - te hunga e kua hāngai ki runga ki taiao, engari kua matū whakarerekētia i roto i te tikanga ki te whakapai ake mahinga. Hei tauira, rubbers horihori.
3. Waihanga - te hunga e kua hanga anake e tauhohe matū, ariā i roto i te taiwhanga, me te hanga whakato. Here tauira He papanga waihanga me muka, polyethylene, rubbers waihanga, polyvinyl pūhaumāota, polypropylene me etahi atu.

mara katoa tohua ki rōpū o waerau - he nui rauemi raw ahumahi mō te faaineineraa me hanga o ngā taputapu, tūemi whare, karaehe, taonga tākaro, taonga me te tahi atu mau mea.

Māngai o te waerau waihanga tino nui

Ko te tātai matū o tetahi o nga māngai tino nui o waerau waihanga i tuhituhia rite (-CH ₂ -CH ₂ -) _n. Tenei polyethylene. E mohiotia ana ngā wāhanga o te whakamahi. hiahia ana tēnei whare (hokohoko kiriata), me te ahumahi, me te ahumahi kai (te pikau rauemi). Heoi, ahakoa he mea te noa tino, engari he faufaa hoki te tangata e kore anake te māngai. Kia hoki ngā reira taua waerau rite:

• pvc;
• polypropylene;
• polyisobutylene;
• terei;
• Teflon;
• tāpia polyvinyl, me ētahi atu.

Ko te reira i roto i te mahi hanga, me mo te hanga kanisā whai rauemi nui tūranga pērā i polypropylene. Na reira, e whakaaro atu te reira ona āhuatanga i te wāhi matū o te tirohanga.

Tātai polypropylene

Mai i te hi'oraa o te matū pūtaiao, e taea te faaite i te hanganga o te taonga i roto i te rerekē momo o tātai. Ko te kōwhiringa tuatahi ko te ahua rāpoi o tuhituhi. I roto i tenei take ko te tātai rite polypropylene (C ₃ H _{6) n.} he tohu polimerazatsii Last n, i.e. te maha o ngā wae hanganga i roto i te macrochain tuatahi.

fokotu'u mai tēnei record he hanganga kounga, me te ine o te rāpoi ngota. ngā pōwarorau o waro me te hauwai ngota, me to ratou tokomaha i roto i te wae waetahi ko aua rite ki te 3/6, me tei te mekameka katoa i runga i te n taupū. Ki te kōrero tatou e pā ana ki te hanganga o te pūhui, i runga i te tikanga o ngota i te rāpoi ngota, ka hiahia koe i te ahua rerekē o te rauemi tuhi.

Polypropylene: tātai hanganga

momo Record, e whakaatu ana te tikanga o ngota here i roto i te rāpoi ngota, ka karanga te tātai hanganga. Hoki matū whakaaro i konei ka whai reira te puka: (CH ₂ -CH-CH ₃ -) _n. Oia mau, te ngota noa i roto i te matū waro te honohono, me te mau i roto i tenei take. E whakaatu ana Tātai polypropylene pōwarorau ranei aha ahua o te wae waetahi niu nei pūhui. Kei te hanga e te reira i te waiwaro hamanga (waiwaro rua) pōwaro pōwaro ranei. Ko tōna tātai tëtehi: C ₃ H _8.

Ko te waetahi tuatahi

Ko te tātai mō te whiwhi i te waetahi polypropylene e whai ake: (-CH ₂ -CH-CH ₃ -). Ki te korerotia tenei kongakonga e rau o nga wa, whiwhi tatou i te macromolecule katoa, he polymer waihanga, whakaaro nei te rauemi. I tua atu, kua kua faaite matou i roto e te rauemi tīmata katoa mo te tauhohenga polymerization kia whakaaro waiwaro rua noa - rua pōwaro. Ko ia polypropylene waetahi. tātai hanganga ka tuhituhia rite CH ₃ -CH = CH _2. I whati hiahiatia moiety here rua i hanga i roto i te polymerization. E kōwae waetahi taua, e tukurua puka he macromolecule polymer.

ngā āhuatanga ōkiko me te matū

Polypropylene tātai (-CH ₂ -CH-CH ₃ -) _n homai he tohu o ona āhuatanga tinana, me te matū. whakarārangi tatou i nga mea matua.

1. ngā āhuatanga ōkiko o te waerau: 0,91 g / cm ^3, pakeke, abrasion ātete, e kore raro ki te waikura. White, puatakore. Kāore he kakara. I roto i te wai, ngā whakarewa organic i pāmahana noa rewa. A, no te rewa taupū i runga 100 ⁰ C i roto i pūhui pūwaro. haamata te reira ki te fakamolū i muri i 140 ⁰ C, i 170 ⁰ C rewa. He wera me te ātete makariri.
2. āhuatanga matū. Mai i te tirohanga o te mahi, e taea te pēnei pōwarorau ki te rauemi nui e mangere. Ko reira, e nehenehe o te tauhohe i anake ki te hāora tino kaha: horekau he waikawa hauota, waikawa chlorosulfonic, oleum, kōnakonako hohe (köwhai, māota). Mai kore e wai taunekeneke i te katoa, ara i pāmahana teitei. Mai tauhohe hāora anake ki runga ki irradiation ki te marama hihi katinga, e haere tahi ai i kinonga o te waerau. Ko te whakarewa organic ki te whakanui ake āmai pāmahana me Whakamemeha.

Ka taea te pēnei etahi āhuatanga ki ngā āhuatanga o te rauemi e whakamahia e te i roto i te ahumahi. Heoi, e kore katoa o te polypropylene kotahi. He tāpiritanga stabilizers motuhake, e kua hanga mā te whakamahi i ngā kōeke rerekē o te waerau raro whakaarohia.

Whakatakotoranga Material

Ko taea ki te tautapa i te maha o ngā āhuatanga taketake e nohoia e te rauemi polypropylene. Āhuatanga o tona whai:

1. A, no te taea ki te ngohe whakawera he, fakamolū i mua.
2. He āhuatanga kawenga.
3. Udarostoek, roa kākahu.
4. Ātete ki te abrasion.
5. Aging ka kitea ki te rā, me te hāora, engari ko feunga puhoi te tukanga.
6. Ka rite ki te waerau he taimaha rāpoi iti.
7. Kua he ma, translucent, e kore e pangia e kakara ranei.
8. Ki te kore e ngingiha emit matū kino, tuku hoki reira he kakara Floral marama.
9. Ko reira ngāwari, roa, ātete ki ngā momo o te poke.
10. He wera me te haupapa.

tohua ngā āpure katoa ki polypropylene rite nga āhuatanga rauemi hanga e tika ana taua mea mo te momo o ngā hiahia. Ko reira ngāwari ki te whakamahi, ngāwari ki te mau tonu me te whakamahi i roto i te mahi o tetahi rängai o te ōhanga.

I roto i te katoa, i reira e toru ngā momo matua o tenei rauemi:

• attaktichesky;
• syndiotactic;
• isotactic.

Ko te rerekētanga matua i waenganui i a ratou - ko reira te hanganga mokowā o te rāpoi ngota. Tüturu - te rōpū mewaro i roto i te mekameka. Hoki ngā mana aueue tāpiritanga, te maha o ngā wae waetahi i roto i te macrostructure.

Hua i te rauemi rānei i te puka o te hanganga, tioata potakataka ranei i te puka o muka, pepa.

Ngā wāhanga o te whakamahi

polypropylene Material whakamahia mō te hanga o ngā kiriata, ipu tākai, ipu kai. Ko reira no te mea te nuinga o hanga reira o kapu kirihou me ētahi atu tūemi o hokona tuku. Kei te whakamahia tēnei rauemi mō te hanga roa, ātete ki āpiha matū polypropylene paipa paipa.

Kei te whakamahia te reira ki te hanga i ngā rauemi shumonepronitsaemyh. rīpene piripiri - ko reira ano hoki tetahi o momo polypropylene.

whakamahia rauemi Attaktichesky te ki te hanga:

• mastics;
• adhesives;
• herepuru;
• rïpene piripiri;
• ara hīkoi, me te pera i runga i.

He maha nui o ngā rau polypropylene, muka, rau mo te hanga o taonga tākaro, pānga, tūemi whare me taonga whare.