Nkhani za malonda
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Kuthetsa Masewera Otsuka Oletsa Mabakiteriya: Buku Lothandiza Kwambiri la Mankhwala Oletsa Mabakiteriya Osinthika Kwambiri
Cholinga chachikulu chowonjezera mankhwala ophera tizilombo toyambitsa matenda ku zinthu zotsukira ndi ziwiri: kuteteza nsalu ndikuletsa kuwonongeka kwa khungu komwe kumachitika chifukwa cha mabakiteriya. Pakadali pano, mankhwala ophera tizilombo omwe amagwiritsidwa ntchito kwambiri mu sopo wochapira zovala ndi awa: 1. Mankhwala Ophera Tizilombo Okhala ndi Chlorine Triclocarban Chifukwa cha...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 -
Chophimba choteteza ku matenda a antioxidant
Mau Oyamba Ma antioxidants (kapena okhazikika kutentha) ndi zowonjezera zomwe zimagwiritsidwa ntchito poletsa kapena kuchedwetsa kuwonongeka kwa ma polima chifukwa cha mpweya kapena ozoni mumlengalenga. Ndi zowonjezera zomwe zimagwiritsidwa ntchito kwambiri mu zinthu za polima. Zophimbazo zimawonongeka ndi kutentha kwa okosijeni zikaphikidwa pamoto wokwera kwambiri ...Werengani zambiri -
Chotsukira khungu chotsukira surfactant APG (Alkyl Polyglycoside)
APG, mwachidule cha Alkyl Polyglycoside, ndi chinthu chopanda ma ionic surfactant. Mwachidule, chili ngati "matsenga oyeretsa" amatsenga omwe angapangitse kuti zinthu zotsukira zigwire ntchito bwino kwambiri. Ndi nyenyezi yomwe ikukula mu zosakaniza zosamalira khungu. Kuchokera ku chilengedwe Zinthu zopangira za APG zonse zimachokera ku chilengedwe. Makamaka ...Werengani zambiri -
Kupanga zinthu zofalitsa (2)
Mu nkhani yatha, tinafotokoza za kubuka kwa zinthu zotulutsa mpweya, njira zina ndi ntchito za zinthu zotulutsa mpweya. Mu ndimeyi, tifufuza mitundu ya zinthu zotulutsa mpweya m'nyengo zosiyanasiyana ndi mbiri ya chitukuko cha zinthu zotulutsa mpweya. Chothandizira chonyowetsa ndi kufalitsa madzi chotsika kwambiri ...Werengani zambiri -
Kupanga zinthu zofalitsa (1)
Zothira madzi ndi zowonjezera pamwamba zomwe zimagwiritsidwa ntchito kukhazikika tinthu tolimba m'zinthu monga zomatira, utoto, mapulasitiki ndi zosakaniza za pulasitiki. Kale, zokutira sizinkafunika zothira madzi. Machitidwe monga utoto wa alkyd ndi nitro sankafunika zothira madzi. Zothira madzi sizinawonekere mpaka acrylic...Werengani zambiri -
Ntchito ndi njira yolimbikitsira kumatirira
Ntchito ndi njira ya cholimbikitsira cholumikizirana Kawirikawiri zolimbikitsira zolumikizirana zimakhala ndi njira zinayi zogwirira ntchito. Chilichonse chili ndi ntchito ndi njira yosiyana. Njira Yogwirira Ntchito Imawongolera mgwirizano wamakina Mwa kukonza kulowa ndi kunyowa kwa chophimbacho ku substrate, chophimbacho chimatha...Werengani zambiri