Nkhani
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Msika wa PVC Paste Resin.
Kuwonjezeka kwa Kufunika kwa Zinthu Zomangira Kuti Ziyendetse Msika Wapadziko Lonse wa PVC Paste Resin Kuwonjezeka kwa kufunika kwa zipangizo zomangira zotsika mtengo m'maiko osatukuka kukuyembekezeka kukweza kufunikira kwa PVC paste resin m'maiko awa m'zaka zingapo zikubwerazi. Zipangizo zomangira zochokera ku PVC paste resin zikulowa m'malo mwa zipangizo zina zachikhalidwe monga matabwa, konkire, dongo, ndi chitsulo. Zinthuzi ndizosavuta kuyika, zimapirira kusintha kwa nyengo, komanso zimakhala zotsika mtengo komanso zopepuka poyerekeza ndi zipangizo zachikhalidwe. Zimaperekanso zabwino zosiyanasiyana pankhani ya magwiridwe antchito. Kuwonjezeka kwa mapulogalamu ofufuza ndi chitukuko chaukadaulo okhudzana ndi zipangizo zomangira zotsika mtengo, makamaka m'maiko osatukuka, akuyembekezeka kupititsa patsogolo kugwiritsa ntchito PVC p... -
Kusanthula pa Kusintha kwa kugwiritsidwa ntchito kwa PE mtsogolo.
Pakadali pano, ntchito zazikulu zomwe zimagwiritsidwa ntchito pansi pa polyethylene m'dziko langa zikuphatikizapo filimu, jekeseni, chitoliro, dzenje, waya, chingwe, metallocene, zokutira ndi mitundu ina yayikulu. Yoyamba kunyamula katundu wolemera kwambiri, gawo lalikulu la zomwe zimagwiritsidwa ntchito pansi pa filimu ndi filimu. Kwa makampani opanga mafilimu, filimu yaulimi, filimu yamafakitale ndi filimu yolongedza zinthu. Komabe, m'zaka zaposachedwa, zinthu monga zoletsa matumba apulasitiki ndi kufooka mobwerezabwereza kwa kufunikira chifukwa cha mliriwu zawavutitsa mobwerezabwereza, ndipo akukumana ndi vuto lochititsa manyazi. Kufunika kwa zinthu zachikhalidwe zopangidwa ndi filimu yapulasitiki yotayidwa kudzasinthidwa pang'onopang'ono ndi kufalikira kwa mapulasitiki owonongeka. Opanga mafilimu ambiri akukumananso ndi zatsopano zaukadaulo wamafakitale... -
Kupanga Soda Yokazinga.
Caustic soda (NaOH) ndi imodzi mwa zakudya zofunika kwambiri za mankhwala, zomwe zimapangidwa pachaka ndi 106t. NaOH imagwiritsidwa ntchito mu organic chemistry, popanga aluminiyamu, mumakampani opanga mapepala, mumakampani opanga chakudya, popanga sopo, ndi zina zotero. Caustic soda ndi chinthu chogwirizana popanga chlorine, 97% yomwe imachitika chifukwa cha electrolysis ya sodium chloride. Caustic soda imakhudza kwambiri zinthu zambiri zachitsulo, makamaka kutentha kwambiri. Komabe, kwadziwika kwa nthawi yayitali kuti nickel imatsutsa dzimbiri ku caustic soda pa kutentha konse, monga momwe Chithunzi 1 chikusonyezera. Kuphatikiza apo, kupatula pa kutentha kwambiri, nickel imatetezedwa ku kupsinjika komwe kumabwera chifukwa cha caustic... -
Kugwiritsa ntchito kwakukulu kwa utomoni wa PVC.
Polyvinyl chloride kapena PVC ndi mtundu wa utomoni womwe umagwiritsidwa ntchito popanga rabara ndi pulasitiki. Utomoni wa PVC umapezeka mu mtundu woyera komanso mawonekedwe a ufa. Umasakanizidwa ndi zowonjezera ndi mapulasitiki kuti apange utomoni wa PVC. Utomoni wa PVC umagwiritsidwa ntchito popaka utoto, kuviika, kupopera thovu, kupopera utoto, ndi kupanga mozungulira. Utomoni wa PVC umagwiritsidwa ntchito popanga zinthu zosiyanasiyana zowonjezera mtengo monga zophimba pansi ndi pakhoma, zikopa zopanga, zigawo za pamwamba, magolovesi, ndi zinthu zopangira slush. Makampani akuluakulu ogwiritsa ntchito utomoni wa PVC umakhala ndi zomangamanga, magalimoto, kusindikiza, zikopa zopangidwa, ndi magolovesi a mafakitale. Utomoni wa PVC umagwiritsidwa ntchito kwambiri m'mafakitale awa, chifukwa cha mawonekedwe ake abwino, kufanana, kunyezimira kwambiri, komanso kunyezimira. Utomoni wa PVC ungagwiritsidwe ntchito... -
17.6 biliyoni! Wanhua Chemical yalengeza mwalamulo ndalama zakunja.
Madzulo a pa Disembala 13, Wanhua Chemical idalengeza za ndalama zakunja. Dzina la cholinga cha ndalama: Wanhua Chemical's ethylene 1.2 miliyoni matani pachaka ndi pulojekiti yapamwamba ya polyolefin ya Wanhua Chemical, ndi ndalama zomwe zayikidwa: ndalama zonse zokwana 17.6 biliyoni yuan. Zinthu zapamwamba kwambiri zamakampani opanga ethylene mdziko langa zimadalira kwambiri zinthu zotumizidwa kunja. Ma polyethylene elastomers ndi gawo lofunikira la zinthu zatsopano zamankhwala. Pakati pawo, zinthu zapamwamba kwambiri za polyolefin monga polyolefin elastomers (POE) ndi zinthu zapadera zosiyana zimadalira 100% pazinthu zotumizidwa kunja. Pambuyo pa zaka zambiri za chitukuko cha ukadaulo wodziyimira pawokha, kampaniyo yadziwa bwino ukadaulo woyenera. Kampaniyo ikukonzekera kukhazikitsa pulojekiti yachiwiri ya ethylene ku Yantai Ind... -
Makampani opanga mafashoni akuseweranso ndi sayansi yopangidwa, pomwe LanzaTech yatulutsa diresi lakuda lopangidwa kuchokera ku CO₂.
Sikokomeza kunena kuti sayansi ya zamoyo zopangidwa yalowa m'mbali zonse za miyoyo ya anthu. ZymoChem yatsala pang'ono kupanga jekete la ski lopangidwa ndi shuga. Posachedwapa, kampani yogulitsa zovala zamafashoni yatulutsa diresi lopangidwa ndi CO₂. Fang ndi LanzaTech, kampani yotchuka ya sayansi ya zamoyo zopangidwa. Zikumveka kuti mgwirizanowu si "kusakanikirana" koyamba kwa LanzaTech. Kumayambiriro kwa Julayi chaka chino, LanzaTech idagwirizana ndi kampani ya zovala zamasewera ya Lululemon ndipo idapanga ulusi ndi nsalu yoyamba padziko lonse lapansi yomwe imagwiritsa ntchito nsalu zobwezerezedwanso za carbon emission. LanzaTech ndi kampani yaukadaulo wa sayansi ya zamoyo zopangidwa yomwe ili ku Illinois, USA. Kutengera ndi kusonkhanitsa kwake kwaukadaulo mu sayansi ya zamoyo zopangidwa, bioinformatics, luntha lochita kupanga ndi kuphunzira kwa makina, ndi uinjiniya, LanzaTech yapanga... -
Njira Zowonjezerera Makhalidwe a PVC - Udindo wa Zowonjezera.
Utomoni wa PVC womwe umapezeka kuchokera ku polymerization ndi wosakhazikika kwambiri chifukwa cha kukhazikika kwake pang'ono kwa kutentha komanso kukhuthala kwakukulu kwa kusungunuka. Umafunika kusinthidwa musanagwiritse ntchito kukhala zinthu zomalizidwa. Makhalidwe ake amatha kukulitsidwa/kusinthidwa powonjezera zowonjezera zingapo, monga zolimbitsa kutentha, zolimbitsa UV, zolimbitsa pulasitiki, zosinthira mphamvu, zodzaza, zoletsa moto, utoto, ndi zina zotero. Kusankha zowonjezera izi kuti ziwonjezere mawonekedwe a polymer kumadalira kufunikira kwa ntchito yomaliza. Mwachitsanzo: 1. Mapulasitiki (Phthalates, Adipates, Trimellitate, ndi zina zotero) amagwiritsidwa ntchito ngati zofewetsa kuti ziwonjezere magwiridwe antchito a rheological komanso makina (kulimba, mphamvu) ya zinthu za vinyl powonjezera kutentha. Zinthu zomwe zimakhudza kusankha kwa mapulasitiki a vinyl polymer ndi: Kugwirizana kwa polymer... -
Msonkhano wa Chemdo pa 12/12.
Masana a pa 12 Disembala, Chemdo adachita msonkhano wa onse. Zomwe zili pamsonkhanowu zagawidwa m'magawo atatu. Choyamba, chifukwa China yachepetsa mphamvu ya kachilombo ka corona, manejala wamkulu adapereka mfundo zingapo kuti kampaniyo ithane ndi mliriwu, ndipo adapempha aliyense kuti akonze mankhwala ndikusamala chitetezo cha okalamba ndi ana kunyumba. Chachiwiri, msonkhano womaliza chaka ukukonzekera kuchitika pa 30 Disembala, ndipo aliyense akuyenera kupereka malipoti a kumapeto kwa chaka munthawi yake. Chachitatu, akukonzekera kuchita chakudya chamadzulo cha chaka cha kampaniyo madzulo a pa 30 Disembala. Padzakhala masewera ndi gawo la lotale panthawiyo ndipo tikukhulupirira kuti aliyense atenga nawo mbali mwachangu. -
Mpando wosindikizidwa wa polylactic acid wa 3D womwe umasokoneza malingaliro anu.
M'zaka zaposachedwapa, ukadaulo wosindikiza wa 3D ukhoza kuwoneka m'mafakitale osiyanasiyana, monga zovala, magalimoto, zomangamanga, chakudya, ndi zina zotero, zonse zingagwiritse ntchito ukadaulo wosindikiza wa 3D. Ndipotu, ukadaulo wosindikiza wa 3D unkagwiritsidwa ntchito popanga zinthu pang'onopang'ono m'masiku oyambirira, chifukwa njira yake yofulumira yopangira zinthu ingachepetse nthawi, mphamvu za anthu ndi kugwiritsa ntchito zinthu zopangira. Komabe, pamene ukadaulo ukukulirakulira, ntchito yosindikiza ya 3D si yongowonjezera chabe. Kugwiritsa ntchito kwakukulu kwa ukadaulo wosindikiza wa 3D kumafikira ku mipando yomwe ili pafupi kwambiri ndi moyo wanu watsiku ndi tsiku. Ukadaulo wosindikiza wa 3D wasintha njira yopangira mipando. Mwachikhalidwe, kupanga mipando kumafuna nthawi yambiri, ndalama ndi mphamvu za anthu. Pambuyo poti chitsanzo cha chinthucho chapangidwa, chiyenera kuyesedwa nthawi zonse ndikuwongoleredwa. Ho... -
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...