Izindaba Zenkampani

1. Ukuminyana/isilinganiso esihlobene

Ukuminyana okuhlobene kubhekisela kumthamo wenkampani yezinto zamakhemikhali.

Isilinganiso sisho isilinganiso sokuminyana okuhlobene kwento yamakhemikhali nokuminyana kwamanzi.

2. Ukushisa kwe-vaporization kanye ne-coefficient of compression

Ukushisa kwe-vaporization yivolumu ehlala igremu ngalinye lepulasitiki (cm³/g), kanyeukucindezelwaisilinganiso sevolumu noma ukushisa kwe-vaporization phakathi kwempushana ye-electrostatic kanye nengxenye yepulasitiki (inani layo lihlala lidlula u-1). Zonke zingasetshenziswa ukucacisa usayizi wegumbi lokukhipha ifilimu. Inani elikhulu lenani elijwayelekile libeka ukuthi umthamo wegumbi lokukhipha kufanele ube mkhulu. Ngesikhathi esifanayo, kubonisa ukuthi i-electrostatic powder inomoya omningi wokupompa, ipayipi yokukhipha inzima, isikhathi sokubumba side, futhi ukusebenza kahle kokukhiqiza kuphansi. Okuphambene kuyiqiniso uma ukushisa kwe-vaporization kukuncane, futhi kuhle ukucindezela nokukhawulela.

3.Ukumuncwa kwamanzi

Ukumuncwa kwamanzi kubhekisela ezingeni lokugaya kwepulasitiki kanye nokumuncwa kwamanzi. Indlela yokulinganisa owomisa isampula kuqala bese uyikala. Ngemva kokucwiliswa emanzini izinsuku ezingu-24 noma ezimbili, yisuse futhi uyikale futhi, bese ubala iphesenti elengezwe enanini, okuwukumuncwa kwamanzi. ucansi.

4. Ukusebenza

Ikhono lepulasitiki lokugcwalisa imbobo ngaphansi kwezinga lokushisa kanye nengcindezi yokusebenza kubizwa ngokuthi umsebenzi. Kuyipharamitha eyinhloko yobuchwepheshe bokucubungula okhiye obucatshangelwa lapho isitembu sifa. Okusha okusebenzayo okulula ukwakha ukukhanya okuningi, ukugcwalisa umgodi akuminyene, izingxenye zepulasitiki zisakazwa ngokukhululekile, i-epoxy resin kanye nezigcwalisi ziqoqwa ngokwehlukana, kulula ukunamathela esikhunjini, ukukhishwa kwesikhunta nokuqeda kunzima, ukufakwa kanzima kusesekuseni kakhulu nokunye. ukungalungi. Kodwa-ke, uma umsebenzi omncane, ukugcwaliswa kufushane, akulula ukwenza, futhi ukucindezela kokubumba kukhulu kakhulu. Ngakho-ke, umsebenzi wokusebenzisa amapulasitiki uhambisana nemithetho yezingxenye zepulasitiki, izinqubo zokwakha kanye nezindinganiso zokwakha.

5. Izici ze-hard bottoming

I-polyurethane elastomer iguqulwa ibe yi-ductile viscous state ngaphansi kokushisisa nokucindezeleka phakathi nayo yonke inqubo yokwakha. Njengoba umsebenzi ukhula, i-cavity igcwele, futhi ngesikhathi esifanayo, i-aldol condensation iyenzeka. Ukuminyana kwe-crosslinking kuyaqhubeka nokwanda, futhi umsebenzi uyavumelana nezimo. Iwumshini ozenzakalela ngokugcwele owehlisa futhi kancane kancane womise izinto ezincibilikisiwe. Lapho ukubunjwa kugxivizwa, ijubane lokuqiniswa okuqinile liyashesha, futhi izinto ezinendikimba emifushane ephikelelayo kufanele ziqaphele ukwenza lula ukuphakelwa, ukulayishwa kanye nokuthulula izinto ezifakiwe, nokukhetha izindinganiso ezisebenzayo zokwakha kanye nokusebenza kwangempela ukuze kugwenywe ukugoqa kanzima noma ukuqina. bottoming Ukushoda, okuholela ekubunjweni kabi kwezingxenye zepulasitiki.

6.Umswakama kanye ne-Volatile Organic Compounds

Zonke izinhlobo zamapulasitiki zinamazinga ahlukene omswakamo kanye nezinhlanganisela eziphilayo eziguquguqukayo. Uma kuningi kakhulu, umsebenzi uyakhula, kulula ukuchichima, isikhathi sokuphikelela side, kunciphisa ukunwetshwa, futhi kulula ukukhiqiza amaphethini amagagasi, ukunwetshwa nokufinyela kanye nokunye ukungalungi nokulimaza. Imisebenzi yobunjiniyela bemishini nekagesi yezingxenye zepulasitiki. Kodwa-ke, lapho ipulasitiki ilula kakhulu, izophinde ibangele umsebenzi ompofu kanye nokwakheka okunzima. Ngakho-ke, amapulasitiki ahlukene kufanele ashiswe njengoba kudingeka. Kulula ukushisisa izinto ngokumunca amanzi aqinile, ikakhulukazi ngenkathi enomswakama, noma ngabe i-izinto ezishisayokufanele kugwenywe. Ukumuncwa umswakama

7.Ukuzwela ukushisa

Ipulasitiki engezwani nokushisa ibhekisela kwamanye amapulasitiki avumelana nezimo ekushiseni. Lapho behlangabezana nokushisa emazingeni okushisa aphezulu, isikhathi siba side noma ingxenye ephambanayo yokuvula okuphakelayo incane kakhulu. Uma umphumela wangempela wokusika umuhle, ukwanda kwezinga lokushisa kwesikhunta kungenzeka kubangele ukushintsha kombala, ukususwa kwe-polymerization, nokuhlukana. Amapulasitiki analolu hlobo lwezici abizwa ngokuthi amapulasitiki azwela ukushisa.

8. Ukuzwela kwamanzi

Amanye amapulasitiki (afana ne-polycarbonate) aze abe nenani elincane lamanzi, kodwa azohlukana ngaphansi kokushisa okuphezulu nokucindezela okukhulu. Lolu hlobo lomsebenzi lubizwa ngokuthi ukuzwela kwamanzi, futhi kulula ukulushisa kusengaphambili.

9.Ukumuncwa kwamanzi

Ipulasitiki iqagele ukuthi ngenxa yokuthi kunezinhlobonhlobo zezithasiselo ezibenza babe namazinga ahlukene okuhlobana kwamanzi, amapulasitiki angahlukaniswa cishe abe izinhlobo ezimbili: ukumuncwa komswakama, ukunamathela komswakama, kanye nokungeyona i-hygroscopicity futhi kunzima ukunamathela emanzini. Kucatshangelwa ukuthi okuqukethwe komswakama kulawulwa ngaphakathi kwebanga elivumelekile, ngaphandle kwalokho umswakama uba umhwamuko ngaphansi kwezinga lokushisa eliphezulu nokucindezela okuphezulu noma umphumela wangempela wokusabela kwe-hydrolysis, okuzokwenza ukuthi i-epoxy resin iqhume, inciphise umsebenzi wayo, futhi iswele. ukubukeka kanye nemisebenzi yobunjiniyela bemishini nekagesi. kuhle. Ngakho-ke, amapulasitiki abamba amanzi ashiswa ngezindlela zokushisa ezifanele kanye nezindinganiso njengoba kudingekile, futhi ukufakwa kwe-infrared okuqondile kusetshenziselwa ukugwema ukumuncwa kabusha komswakama ngesikhathi sokufaka isicelo.

10.Ukuphefumula

Ukuphefumula kubhekisela emsebenzini wokudlulisa umhwamuko wefilimu yepulasitiki noma ibhodi lepulasitiki

11.Ncibilikisa inani lenkomba

I-Melt Index (MI) iyinani elijwayelekile elibonisa umsebenzi wezinto zepulasitiki ngesikhathi sokukhiqiza nokucubungula.

12.Amandla aqinile/ukwelulwa kokuqhekeka

Amandla okuqina asho inani lamandla adingekayo ukuze kunwetshwe into yepulasitiki ibe sezingeni elithile (njengomkhawulo wesivuno noma indawo yokuqhekeka). Ngokuvamile imakwa ngendawo ephelele yebhizinisi ngalinye. Futhi iphesenti lobude ngemva kokudonsa ubude kubude bangempela wukwelulwa kokuqhekeka.

13.Amandla acindezelayo amabhampa

Amandla acindezelayo amaqhubu amandla epulasitiki ukumelana namaqhubu.

14.Amandla acindezelayo anomthelela

Amandla okucindezela okunomthelela abhekisela emandleni e-kinetic ipulasitiki engawathwala lapho ithintwa amandla angaphandle.

15.Amandla

Amandla amapulasitiki ajwayelekile ngokuvamile amakwa ngezindlela ezimbili zokuhlola, ubulukhuni be-Rockwell kanye nobulukhuni bukaSomo. Phakathi naleso sikhathi, i-Shao's A yayivame ukusetshenziselwa ukukala amapulasitiki athambile, njenge-TPE namanye ama-elastomers e-polyurethane noma irabha ene-vulcanized, njll; I-Shao's D yayisetshenziselwa ukukala amapulasitiki aqinile, njengamapulasitiki ajwayelekile-inhloso ejwayelekile kanye namapulasitiki athile wobunjiniyela, futhi iningi lamapulasitiki eProjekthi yobunjiniyela asebenza kakhulu noma amaplastiki ephrojekthi yobunjiniyela aqinile kufanele alinganiswe yi-Rockwell.

16.Izinga lokushisa lokuphazamisa ukushisa

Izinga lokushisa lokuhlanekezela ukushisa izinga lokushisa lapho ucezu lokuhlola lwepulasitiki luqhuma ezingeni elingaphansi kwengcindezi yokusebenza kanye nezinga lokushisa.

17.Ukumelana nokushisa okuphezulu kwesikhathi eside

Ukumelana nokushisa okuphezulu kwesikhathi eside kubhekisela ekuphikisweni kwezinga lokushisa kwezinto zepulasitiki ekusetshenzisweni kwesikhathi eside.

18.Uhlamvu olumelana nokuncibilika

Umlingiswa womuthi ongazweli ku-solvent ubhekisela ekuguqulweni kwesisindo, ivolumu, amandla aqinile kanye nokwelulwa kwezinto zepulasitiki ngemuva kokucwiliswa ku-solvent yemvelo ezingeni lokushisa isikhathi esithile. Ukuhluka okuncane kofuzo kubonisa ushintsho oluhle kakhulu oluphansi lwe-Dielectric.

19.Ukumelana nokuguga

Ukumelana nokuguga kubhekisela ekuphikisweni kwezinto zepulasitiki ezingozini zokukhanya kwelanga, ukushisa, umoya, umoya nemvula endaweni yemvelo yangaphandle, okubangela izinguquko ezinkulu kanye nokuwohloka.

20.Ukucaca

Ukucaca kubhekisela ekudluliselweni kokukhanya kwamapulasitiki esizindeni sokukhanya esibonakalayo. Amapulasitiki angahlukaniswa abe yi-transmittance yokukhanya, obala kanye ne-opacity ngokwezinga lokudlula kokukhanya.

21.ubushelelezi

Ubushelelezi bubhekisela ezingeni lengilazi yesibuko elifana nelezinto zamakhemikhali ezingahlehlisa ukukhanya. Ubushelelezi obuhle bubhekisela endaweni ekhanyayo yezinto zamakhemikhali.

22.Isendlalelo se-insulating sibhubhisa i-voltage yokusebenza

I-voltage esebenzayo yokucekelwa phansi kwengqimba yokuvikela i-voltage esebenzayo enyusa umehluko omkhulu ongaba khona esiqeshini sokuhlola ukuze sifinyelele ukucekelwa phansi kwamandla e-dielectric, ahlukaniswe inani (Kv/mm) lebanga phakathi kwama-electrode amabili (ukuqina isiqephu sokuhlola).

23.ukushisa kwe-fusion

Ukushisa kokuhlanganiswa kubizwa nangokuthi ukushisa kokuncibilika kanye nokuhwamuka, okungamandla e-kinetic adingekayo ekwakhiweni noma ekuncibilikeni nasekukhanyeni kwe-crystalline polymer. Le ngxenye yamandla e-kinetic isetshenziselwa ukuncibilikisa isakhiwo se-crystalline se-polymer material. Ngakho-ke, lapho i-polymer ye-crystalline icutshungulwa ngokubunjwa komjovo, idinga amandla e-kinetic engeziwe ukuze ifinyelele izinga lokushisa elithile lokuncibilika kunalapho i-amorphous polymer icutshungulwa ngokubunjwa komjovo. Asikho isidingo sokushisa kokuncibilika kanye ne-vaporization.

24.ukushisa okuqondile

Ukushisa okukhethekile inani lokushisa elidingekayo lapho izinga lokushisa lezinto ezingavuthiwe zebhizinisi likhuphuka ngo-1 degree [J/kg.k].

25.i-thermal diffusivity

I-thermal diffusivity isho izinga lokushisa okuqagelwa ngalo ukuthi lidluliselwe ezintweni ezishisisayo. Ibizwa nangokuthi i-coefficient yokudlulisa ukushisa. Inani layo linani lokushisa (ukushisa okukhethekile) kanye nokugayeka kokudla kanye nokumuncwa okudingekayo lapho izinga lokushisa lekhwalithi yebhizinisi likhuphuka ngedigri engu-1. Izinga lokushisa (i-coefficient yokudlulisa ukushisa) ikhethiwe. Ingcindezi yokusebenza ayinayo ingozi ku-coefficient yokusabalalisa okushisayo, kodwa izinga lokushisa liyingozi kakhulu.