Fotokozani mwachidule zazinthu zazikulu ndikugwiritsa ntchito mapulasitiki a PP

Lankhulani ndi inu za katundu ndi ntchito zazikulu za polypropylene (PP).

Choyamba, kodi polypropylene ndi chiyani?Polypropylene amafupikitsidwa ngati "PP".Ndi utomoni wa thermoplastic wokhala ndi kasinthidwe wokhazikika komanso wapamwambaELECTRIC THERMAL ACTUATOR(crystallinity mpaka 95%) polymerized kuchokera ku propylene.Iwo akhoza kugawidwa mu PP jekeseni akamaumba, PP waya kujambula, PP CHIKWANGWANI, PP film, PP chitoliro.Pakati pa mapulasitiki omwe amagwiritsidwa ntchito kwambiri pamoyo, polypropylene ndi imodzi mwa mitundu yopepuka kwambiri.

M'munsimu muli katundu wa polypropylene:

1. Thupi katundu: sanali poizoni, odorless, zoipa, yamkaka woyera ndi mkulu crystalline kachulukidwe kokha 0.9-0.91g/cm3, kukhazikika bwino kwa madzi.

2. Kutentha kwa kutentha: Kumakhala ndi kutentha kwabwino, ndipo zopangira zake zimatha kutenthedwa pa kutentha pamwamba pa 100 ° C, ndipo sizidzawonongeka pa 150 ° C popanda mphamvu yakunja.Kutentha kwa embrittlement ndi -35 ° C, ndi embrittlement kumachitika pansi -35 ° C, ndipo kukana kuzizira sikuli bwino monga polyethylene.

3. Kukhazikika kwa Chemical: Kukhazikika kwamankhwala ndikwabwino kwambiri.Kupatula kukhala dzimbiri ndi anaikira sulfuric acid ndi anaikira nitric asidi, ndi wokhazikika kwa reagents mankhwala ena, koma otsika maselo kulemera aliphatic hydrocarbons, onunkhira hydrocarbons ndi chlorinated hydrocarbons zingachititse polima Propylene kufewetsa ndi kutupa, ndi kukhazikika kwake mankhwala kumawonjezeka ndi. kuwonjezeka kwa crystallinity, kotero polypropylene ndi yoyenera kupanga mapaipi osiyanasiyana a mankhwala ndi zopangira, ndipo imakhala ndi zotsatira zabwino zotsutsana ndi dzimbiri.

4. Mphamvu zamagetsi: Zili ndi dielectric coefficient yapamwamba, ndipo ndi kukwera kwa kutentha, imatha kugwiritsidwa ntchito popanga zida zotenthetsera zamagetsi.Imakhalanso ndi mphamvu yowonongeka kwambiri ndipo ndi yoyenera kugwiritsidwa ntchito ngati zipangizo zamagetsi, etc. Imakhala ndi kukana bwino kwa voteji ndi arc, koma imakhala ndi magetsi osakanikirana, ndipo imakhala yosavuta kukalamba ikakumana ndi mkuwa.

Polypropylene imagwiritsidwa ntchito kwambiri pazida zam'nyumba ndi mapaipi apulasitiki.Zida zapakhomo zakula kwambiri m'zaka zaposachedwa, ndi mitundu yambiri komanso zotulutsa zazikulu.Choncho, m'zaka zingapo zikubwerazi, chitukuko cha zipangizo zapadera za PP za zipangizo zapakhomo zidzawonjezeka kuti zigwirizane ndi kusintha kwa msika.

Mu 2003, dziko okwana linanena bungwe mapaipi pulasitiki kuposa matani 1.8 miliyoni, chaka ndi chaka kuwonjezeka 23%.M'masiku oyambilira, mapaipi a PP amagwiritsidwa ntchito makamaka ngati mapaipi amadzi aulimi, koma msika sunatseguke chifukwa cha zovuta zina pakuchita zinthu zoyambilira (mphamvu zamphamvu komanso kukana kukalamba).Koma poyambitsa teknoloji, msika wadziwika pang'onopang'ono.Mipope ya pulasitiki ndi imodzi mwazinthu zofunika kwambiri pakukweza ndi kugwiritsa ntchito zida zomangira zamankhwala mdziko langa.Unduna wa Zomangamanga udapereka "Chidziwitso pa Kulimbitsa Kuwongolera Kupanga ndi Kupititsa patsogolo ndi Kugwiritsa Ntchito Mapaipi a Copolymerized Polypropylene (PP-R, PP-B)" mu 2001, wofuna madipatimenti oyenerera Agwire ntchito limodzi kuti agwire ntchito yabwino kuchokera kuzinthu zopangira, kukonza, khalidwe pa ntchito chitoliro ndi unsembe, ndi mosamalitsa kulamulira khalidwe mipope PP, kuti bwino ntchito yabwino kupanga, ntchito ndi Kukwezeleza mapaipi PP m'dziko langa.

Ndi kusintha kwa moyo wa anthu, ndi chitukuko chabwino kachitidwe kukhala mandala PP zipangizo zapadera, makamaka PP zipangizo zapadera ndi mandala mkulu, fluidity wabwino, ndi kusala kupanga akufunika kupanga ndi pokonza mu ankakonda mankhwala PP anthu.Transparent PP ndi yodziwika bwino kuposa PP wamba, PVC, PET, PS, ndipo ili ndi zabwino zambiri komanso chiyembekezo cha chitukuko.Pakalipano, pali kusiyana kwakukulu pakati pa zipangizo zapadera za PP zowonekera ndi mayiko akunja, ndipo kupanga ndi kugwiritsa ntchito utomoni wa PP ndi zinthu zake ziyenera kulimbikitsidwa.

Kuphatikiza apo, polypropylene imagwiritsidwanso ntchito potambasula filimu ya PP ndi zina zotero.