nkhani
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N’chifukwa Chiyani Tikufunika Zoletsa Mkuwa?
Choletsa mkuwa kapena choletsa mkuwa ndi chowonjezera chogwira ntchito chomwe chimagwiritsidwa ntchito mu zinthu za polima monga mapulasitiki ndi rabala. Ntchito yake yayikulu ndikuletsa kukalamba kwa ma ayoni a mkuwa kapena mkuwa pa zinthu, kupewa kuwonongeka kwa zinthu, kusintha mtundu, kapena kuwonongeka kwa katundu wa makina...Werengani zambiri -
Sayansi Yoteteza Dzuwa: Chitetezo Chofunikira Cholimbana ndi Ma Rays a UV
Madera omwe ali pafupi ndi equator kapena pamalo okwera kwambiri amakhala ndi mphamvu ya ultraviolet. Kukhudzidwa ndi ultraviolet kwa nthawi yayitali kungayambitse mavuto monga kutentha ndi dzuwa komanso kukalamba kwa khungu, kotero chitetezo cha dzuwa n'chofunika kwambiri. Mafuta oteteza ku dzuwa omwe alipo pano amapezeka makamaka kudzera mu njira yophimbira thupi kapena ...Werengani zambiri -
Chidule cha Zowonjezera Zophimba
Tanthauzo ndi tanthauzo Zowonjezera zophimba ndi zosakaniza zomwe zimawonjezeredwa ku zophimba kuwonjezera pa zinthu zazikulu zopangira filimu, utoto, zodzaza, ndi zosungunulira. Ndi zinthu zomwe zimatha kusintha kwambiri mawonekedwe enaake a filimu yophimba kapena yophimba. Zimagwiritsidwa ntchito pang'ono...Werengani zambiri -
Njira Yothana ndi Ukalamba ya Polyamide (Nylon, PA)
Nayiloni (polyamide, PA) ndi pulasitiki yopangidwa mwaukadaulo yokhala ndi mphamvu zabwino kwambiri zamakanika ndi zokonzera, zomwe PA6 ndi PA66 ndi mitundu yodziwika bwino ya polyamide. Komabe, ili ndi zofooka pakukana kutentha kwambiri, kukhazikika koipa kwa utoto, ndipo imakonda kuyamwa chinyezi komanso hydrolysis.Werengani zambiri -
Msika wapadziko lonse wa Nucleating Agent ukukulirakulira pang'onopang'ono: kuyang'ana kwambiri ogulitsa aku China omwe akutuluka
Chaka chathachi (2024), chifukwa cha chitukuko cha mafakitale monga magalimoto ndi ma CD, makampani opanga polyolefin m'madera a Asia Pacific ndi Middle East akukula pang'onopang'ono. Kufunika kwa zinthu zopangira nucleating kwawonjezeka mofanana. (Kodi n'chiyani chimathandiza nucleating?) Kutenga China ngati ...Werengani zambiri -
Kusalimba kwa Nyengo? Kodi pali china chake chomwe muyenera kudziwa chokhudza PVC?
PVC ndi pulasitiki yodziwika bwino yomwe nthawi zambiri imapangidwa kukhala mapaipi ndi zolumikizira, mapepala ndi mafilimu, ndi zina zotero. Ndi yotsika mtengo ndipo imalekerera ma acid, alkali, mchere, ndi zosungunulira zina, zomwe zimapangitsa kuti ikhale yoyenera kwambiri kukhudzana ndi zinthu zamafuta. Itha kupangidwa kukhala yowonekera kapena yosawonekera bwino...Werengani zambiri -
Kodi magulu a Antistatic Agents ndi ati? -Mayankho Opangidwa Mwamakonda a Antistatic ochokera ku NANJING REBORN
Zinthu zoletsa kutentha kwa dziko lapansi zikufunikira kwambiri kuti zithetse mavuto monga kulowetsedwa kwa magetsi mu pulasitiki, ma short circuits, ndi kutulutsa magetsi mu zamagetsi. Malinga ndi njira zosiyanasiyana zogwiritsira ntchito, zinthu zoletsa kutentha kwa dziko lapansi zitha kugawidwa m'magulu awiri: zowonjezera zamkati ndi zakunja...Werengani zambiri -
CHITETEZO CHA POLYMER: CHIMENE CHIMAYAMIRA UV
Kapangidwe ka mamolekyu a ma UV absorbers nthawi zambiri kamakhala ndi ma conjugated double bonds kapena aromatic rings, omwe amatha kuyamwa ma ultraviolet rays a ma wavelengths enaake (makamaka UVA ndi UVB). Pamene ma ultraviolet rays amayatsa mamolekyu oyamwa, ma elekitironi omwe ali mu mamolekyu amasamuka kuchokera pansi...Werengani zambiri -
Kugawa ndi kugwiritsa ntchito zinthu zoyezera zokutira
Zinthu zoyezera zomwe zimagwiritsidwa ntchito popaka utoto nthawi zambiri zimagawidwa m'magulu a zinthu zosakaniza, acrylic acid, silicone, fluorocarbon polymers ndi cellulose acetate. Chifukwa cha mphamvu zake zochepa pamwamba, zinthu zoyezera sizingathandize kokha kuti utotowo ufike pamtunda, komanso zingayambitse zotsatirapo zoyipa. Mukagwiritsa ntchito, ...Werengani zambiri -
Kodi mphamvu ya zophimba ndi chiyani?
Tanthauzo la kulinganiza Katundu wolinganiza wa chophimba amafotokozedwa ngati kuthekera kwa chophimba kuyenda pambuyo pochigwiritsa ntchito, motero kukulitsa kuchotsedwa kwa kusalingana kulikonse kwa pamwamba komwe kumachitika chifukwa cha njira yogwiritsira ntchito. Makamaka, chophimbacho chikagwiritsidwa ntchito, pamakhala njira yoyendera ndi...Werengani zambiri -
Kodi n’chiyani chimakhudza kuchotsedwa kwa zophimba?
Kuchotsa thovu ndi mphamvu ya chophimba kuchotsa thovu lomwe limapangidwa panthawi yopanga ndi kuphimba. Ma defoamers ndi mtundu wa zowonjezera zomwe zimagwiritsidwa ntchito kuchepetsa thovu lomwe limapangidwa panthawi yopanga ndi/kapena kugwiritsa ntchito zokutira. Ndiye ndi zinthu ziti zomwe zimakhudza kuchotsera thovu? 1. Kuphimba pamwamba...Werengani zambiri -
Mitundu ya ma absorber a UV
Kuyambitsa kwa choyatsira UV Kuwala kwa dzuwa kuli ndi kuwala kwa ultraviolet kochuluka komwe kumawononga zinthu zamitundu. Kutalika kwake kwa mafunde ndi pafupifupi 290 ~ 460nm. Kuwala koopsa kwa ultraviolet kumeneku kumapangitsa kuti mamolekyu amitundu awole ndikuzimiririka kudzera mu zochita zochepetsa okosijeni. Kugwiritsa ntchito ultraviolet abs...Werengani zambiri