Nkhani
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Kusanthula pa Kusintha kwa Mitundu ya PE Yogwiritsa Ntchito Pansi pa Msika Mtsogolo.
Pakadali pano, kuchuluka kwa polyethylene komwe anthu amagwiritsa ntchito m'dziko langa ndi kwakukulu, ndipo mitundu ya pulasitiki yomwe ili pansi pake ndi yovuta ndipo imagulitsidwa mwachindunji kwa opanga zinthu zapulasitiki. Ndi gawo la zinthu zomwe zimagwiritsidwa ntchito pang'ono mu unyolo wa ethylene womwe uli pansi pake. Kuphatikiza pa zotsatira za kuchuluka kwa zinthu zomwe zimagwiritsidwa ntchito m'nyumba, kusiyana kwa zinthu zomwe zimagwiritsidwa ntchito m'deralo komanso kufunikira kwake sikuli kofanana. Ndi kukula kwakukulu kwa mphamvu zopangira zinthu zomwe makampani opanga zinthu za polyethylene m'dziko langa akupanga m'zaka zaposachedwa, mbali yopereka zinthu yawonjezeka kwambiri. Nthawi yomweyo, chifukwa cha kusintha kosalekeza kwa kupanga ndi moyo wa anthu okhala m'deralo, kufunikira kwa zinthuzi kwawonjezeka pang'onopang'ono m'zaka zaposachedwa. Komabe, kuyambira theka lachiwiri la 202... -
Kodi mitundu yosiyanasiyana ya polypropylene ndi iti?
Pali mitundu iwiri ikuluikulu ya polypropylene yomwe ilipo: ma homopolymer ndi ma copolymer. Ma copolymer amagawidwanso m'magulu a block copolymers ndi ma random copolymers. Gulu lililonse limagwirizana bwino ndi ntchito zina kuposa zina. Polypropylene nthawi zambiri imatchedwa "chitsulo" cha makampani apulasitiki chifukwa cha njira zosiyanasiyana zomwe ingasinthidwe kapena kusinthidwa kuti ikwaniritse bwino ntchito inayake. Izi nthawi zambiri zimachitika poika zowonjezera zapadera kapena kuzipanga mwanjira yapadera. Kusinthasintha kumeneku ndi chinthu chofunikira kwambiri. Homopolymer polypropylene ndi mtundu wazinthu zonse. Mutha kuganiza izi ngati momwe zinthu za polypropylene zimakhalira. Block copolymer polypropylene ili ndi mayunitsi a co-monomer omwe amakonzedwa m'magawo (ndiko kuti, mu kapangidwe kake) ndipo ali ndi chilichonse... -
Kodi Polyvinyl Chloride (PVC) ndi yotani?
Zina mwa zinthu zofunika kwambiri za Polyvinyl Chloride (PVC) ndi izi: Kuchulukana: PVC ndi yokhuthala kwambiri poyerekeza ndi mapulasitiki ambiri (mphamvu yokoka yozungulira 1.4) Zachuma: PVC imapezeka mosavuta komanso yotsika mtengo. Kulimba: PVC yolimba imapambana bwino chifukwa cha kuuma ndi kukhazikika. Mphamvu: PVC yolimba ili ndi mphamvu yokoka bwino. Polyvinyl Chloride ndi chinthu cha "thermoplastic" (mosiyana ndi "thermoset"), chomwe chimagwirizana ndi momwe pulasitiki imayankhira kutentha. Zipangizo za thermoplastic zimakhala zamadzimadzi pamalo awo osungunuka (mtundu wa PVC pakati pa madigiri 100 Celsius otsika kwambiri ndi mitengo yapamwamba monga madigiri 260 Celsius kutengera zowonjezera). Chinthu chofunikira kwambiri chokhudza thermoplastics ndichakuti zimatha kutenthedwa kufika pamalo awo osungunuka, kuzizidwa, ndikutenthedwanso ndi... -
Kodi soda yokazinga ndi chiyani?
Paulendo wamba wopita ku supermarket, ogula amatha kugula sopo wothira, kugula botolo la aspirin ndikuyang'ana mitu yaposachedwa m'manyuzipepala ndi magazini. Poyamba, sizingawoneke ngati zinthuzi zili ndi zofanana zambiri. Komabe, pa chilichonse mwa izo, soda ya caustic imagwira ntchito yofunika kwambiri pamndandanda wawo wazosakaniza kapena njira zopangira. Kodi soda ya caustic ndi chiyani? Soda ya caustic ndi mankhwala a sodium hydroxide (NaOH). Phatikizi iyi ndi alkali - mtundu wa maziko omwe amatha kuletsa ma acid ndipo amasungunuka m'madzi. Masiku ano soda ya caustic imatha kupangidwa ngati ma pellets, ma flakes, ufa, mayankho ndi zina zambiri. Kodi soda ya caustic imagwiritsidwa ntchito chiyani? Soda ya caustic yakhala chinthu chofala popanga zinthu zambiri za tsiku ndi tsiku. Yodziwika bwino kuti lye, yagwiritsidwa ntchito pa... -
Chifukwa chiyani polypropylene imagwiritsidwa ntchito nthawi zambiri?
Polypropylene imagwiritsidwa ntchito m'nyumba ndi m'mafakitale. Kapangidwe kake kapadera komanso kuthekera kwake kosintha malinga ndi njira zosiyanasiyana zopangira zinthu zimapangitsa kuti ikhale yodziwika bwino ngati chinthu chamtengo wapatali chogwiritsidwa ntchito m'njira zosiyanasiyana. Chinthu china chofunika kwambiri ndi kuthekera kwa polypropylene kugwira ntchito ngati pulasitiki komanso ngati ulusi (monga matumba otsatsa omwe amaperekedwa pazochitika, mipikisano, ndi zina). Luso lapadera la polypropylene lopangidwa m'njira zosiyanasiyana komanso m'njira zosiyanasiyana linapangitsa kuti posakhalitsa iyambe kutsutsa zinthu zina zakale, makamaka m'mafakitale opaka, ulusi, ndi kupanga jekeseni. Kukula kwake kwakhala kukupitirira kwa zaka zambiri ndipo kukupitilirabe kukhala wosewera wamkulu mumakampani opanga pulasitiki padziko lonse lapansi. Ku Creative Mechanisms, tili ndi... -
Chemdo anaitanidwa kuti alowe nawo pamsonkhano womwe unakonzedwa pamodzi ndi Google ndi Global Search.
Deta ikuwonetsa kuti mu njira yogulitsira malonda a pa intaneti ku China mu 2021, malonda a B2B odutsa malire adafika pafupifupi 80%. Mu 2022, mayiko adzalowa mu gawo latsopano la kukhazikika kwa mliriwu. Pofuna kuthana ndi zotsatira za mliriwu, kuyambiranso ntchito ndi kupanga kwakhala mawu ofala kwambiri a mabizinesi akumaloko ndi akunja. Kuphatikiza pa mliriwu, zinthu monga kukwera mitengo ya zinthu zopangira zomwe zimayambitsidwa ndi kusakhazikika kwa ndale zakomweko, kukwera kwa katundu wapamadzi, kutsekedwa kwa katundu wotumizidwa ku madoko opitako, komanso kuchepa kwa ndalama zokhudzana ndi izi chifukwa cha kukwera kwa chiwongola dzanja cha dola yaku US zonse zimakhudza unyolo wonse wamalonda apadziko lonse lapansi. Mu mkhalidwe wovuta chonchi, Google ndi mnzake ku China, Global Sou, adachita msonkhano wapadera... -
Kodi ma granules a PVC ndi chiyani?
PVC ndi imodzi mwa mapulasitiki omwe amagwiritsidwa ntchito kwambiri m'makampani. Plasticol, kampani yaku Italy yomwe ili pafupi ndi Varese yakhala ikupanga ma granules a PVC kwa zaka zoposa 50 tsopano ndipo chidziwitso chomwe chasonkhanitsidwa pazaka zambiri chalola bizinesiyo kupeza luso lozama kwambiri kotero kuti tsopano titha kuigwiritsa ntchito kukwaniritsa zopempha zonse za makasitomala zomwe zikupereka zinthu zatsopano komanso zodalirika. Chowonadi chakuti PVC imagwiritsidwa ntchito kwambiri popanga zinthu zosiyanasiyana chikuwonetsa momwe mawonekedwe ake amkati alili othandiza kwambiri komanso apadera. Tiyeni tiyambe kukambirana za kuuma kwa PVC: zinthuzo zimakhala zolimba kwambiri ngati zili zoyera koma zimakhala zosinthasintha ngati zisakanizidwa ndi zinthu zina. Khalidwe losiyanali limapangitsa PVC kukhala yoyenera kupanga zinthu zomwe zimagwiritsidwa ntchito m'magawo osiyanasiyana, kuyambira nyumba imodzi mpaka ina... -
Zodzoladzola zomwe zimawonongeka zitha kusintha makampani opanga zodzoladzola.
Moyo uli wodzaza ndi ma CD onyezimira, mabotolo okongoletsa, mbale za zipatso ndi zina zambiri, koma zambiri mwa izo zimapangidwa ndi zinthu zoopsa komanso zosakhazikika zomwe zimapangitsa kuti pulasitiki iipitsidwe. Posachedwapa, ofufuza ku Yunivesite ya Cambridge ku UK apeza njira yopangira glitter yokhazikika, yopanda poizoni komanso yowola kuchokera ku cellulose, chinthu chachikulu chomwe chimamanga makoma a maselo a zomera, zipatso ndi ndiwo zamasamba. Mapepala okhudzana nawo adasindikizidwa mu magazini ya Nature Materials pa 11th. Yopangidwa kuchokera ku ma cellulose nanocrystals, glitter iyi imagwiritsa ntchito mtundu wa kapangidwe kake kusintha kuwala kuti ipange mitundu yowala. Mwachitsanzo, m'chilengedwe, kuwala kwa mapiko a gulugufe ndi nthenga za pikoko ndi ntchito zaluso zamtundu wa kapangidwe kake, zomwe sizidzatha patatha zaka zana. Pogwiritsa ntchito njira zodzipangira zokha, cellulose imatha kupanga ... -
Kodi Polyvinyl chloride (PVC) phala la Resin ndi chiyani?
Utoto wa Polyvinyl chloride (PVC) Resin, monga momwe dzinalo likusonyezera, ndi wakuti utomoni uwu umagwiritsidwa ntchito makamaka ngati phala. Anthu nthawi zambiri amagwiritsa ntchito mtundu uwu wa phala ngati plastisol, womwe ndi mtundu wapadera wamadzimadzi wa pulasitiki ya PVC yomwe sinakonzedwe. . Utoto wa phala nthawi zambiri umakonzedwa ndi emulsion ndi njira zazing'ono zoyimitsira. Utoto wa phala wa Polyvinyl chloride uli ndi kukula pang'ono kwa tinthu tating'onoting'ono, ndipo kapangidwe kake kali ngati talc, kosasuntha. Utoto wa phala wa polyvinyl chloride umasakanizidwa ndi Plasticizer kenako n’kusunthidwa kuti upange phala lokhazikika, lomwe kenako limapangidwa kukhala phala la PVC, kapena PVC plastisol, PVC sol, ndipo ndi mumtunduwu momwe anthu amagwiritsidwa ntchito pokonza Zogulitsa zomaliza. Pakupanga phala, zodzaza zosiyanasiyana, zosungunulira, zolimbitsa kutentha, zotulutsa thovu ndi zolimbitsa kuwala zimawonjezedwa malinga ndi ... -
Kodi Mafilimu a PP ndi chiyani?
KATUNDU Polypropylene kapena PP ndi thermoplastic yotsika mtengo komanso yomveka bwino, yonyezimira kwambiri komanso yolimba bwino. Ili ndi malo osungunuka kwambiri kuposa PE, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito zomwe zimafuna kuyeretsa kutentha kwambiri. Ilinso ndi utsi wochepa komanso yonyezimira kwambiri. Nthawi zambiri, mphamvu zotsekera kutentha za PP sizofanana ndi za LDPE. LDPE ilinso ndi mphamvu yabwino yong'ambika komanso kukana kutentha kwambiri. PP imatha kusinthidwa kukhala chitsulo zomwe zimapangitsa kuti pakhale mphamvu zotchingira mpweya kuti zigwiritsidwe ntchito molimbika pomwe nthawi yayitali yosungiramo zinthu ndi yofunika. Mafilimu a PP ndi oyenera ntchito zosiyanasiyana zamafakitale, ogula, komanso zamagalimoto. PP imatha kubwezeretsedwanso kwathunthu ndipo imatha kusinthidwa mosavuta kukhala zinthu zina zambiri pazinthu zosiyanasiyana. Komabe, popanda... -
PVC compound ndi chiyani?
Ma PVC compounds amachokera ku kuphatikiza kwa PVC polymer RESIN ndi zowonjezera zomwe zimapangitsa kuti pakhale njira yofunikira yogwiritsira ntchito (Mapaipi kapena Ma Rigid Profiles kapena Ma Flexible Profiles kapena Mapepala). Phalalo limapangidwa mwa kusakaniza pamodzi zosakaniza, zomwe pambuyo pake zimasinthidwa kukhala chinthu "chokhala ndi gel" mothandizidwa ndi kutentha ndi mphamvu yocheka. Kutengera mtundu wa PVC ndi zowonjezera, phalalo lisanalowetsedwe likhoza kukhala ufa womasuka (wodziwika kuti wosakaniza wouma) kapena madzi mu mawonekedwe a phala kapena yankho. Ma PVC compounds akapangidwa, pogwiritsa ntchito ma plasticizers, kukhala zinthu zosinthika, zomwe nthawi zambiri zimatchedwa PVC-P. Ma PVC compounds akapangidwa popanda plasticizer kuti agwiritsidwe ntchito molimba amatchedwa PVC-U. PVC Compounding ikhoza kufotokozedwa motere: PVC dr... -
Kusiyana Pakati pa Mabagi a BOPP, OPP ndi PP.
Makampani opanga chakudya amagwiritsa ntchito kwambiri ma CD a pulasitiki a BOPP. Matumba a BOPP ndi osavuta kusindikiza, kuwaphimba ndi kuwapaka laminate zomwe zimapangitsa kuti akhale oyenera kulongedza zinthu monga zinthu zatsopano, makeke ndi zokhwasula-khwasula. Pamodzi ndi matumba a BOPP, OPP, ndi PP amagwiritsidwanso ntchito polongedza. Polypropylene ndi polima wamba pakati pa atatu omwe amagwiritsidwa ntchito popanga matumba. OPP imayimira Oriented Polypropylene, BOPP imayimira Biaxially Oriented Polypropylene ndi PP imayimira Polypropylene. Zonsezi zitatu zimasiyana mu kalembedwe kawo kopangira. Polypropylene yomwe imadziwikanso kuti polypropene ndi polima ya semi-crystalline ya thermoplastic. Ndi yolimba, yamphamvu ndipo imakhala ndi kukana kwakukulu. Matumba oimika, matumba a spout ndi matumba a ziplock amapangidwa kuchokera ku polypropylene. N'zovuta kwambiri kusiyanitsa pakati pa OPP, BOPP ndi PP...