Xov Xwm Kev Lag Luam
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Polyvinylpyrrolidone (PVP) - Ib qho tshuaj lom neeg zoo uas muaj ntau yam kev siv hla teb
Polyvinylpyrrolidone, luv ua PVP thiab tseem hu ua povidone, yog ib qho tshuaj polymer tsis muaj zog ua haujlwm siab. Muab nrog hydrophilicity, adhesiveness, zaj duab xis-tsim cov khoom, biocompatibility thiab ntau lwm yam ntxwv tshwj xeeb, nws tau dhau los ua ib qho ntawm kev tshawb fawb tob tshaj plaws thiab wi ...Nyeem ntxiv -
Kev Siv Tshuab Ntsuab Ua Rau Lub Neej Ci Ntsa iab: Txoj Kev Ua Kom Dawb Huv Rau Ib Puag Ncig ntawm Tus Neeg Sawv Cev Ci Ntsa iab Optical brightener CBS-X
Hauv lub neej txhua hnub, koj puas tau xav tias vim li cas qee cov tshuaj ntxuav khaub ncaws tuaj yeem ua rau cov khaub ncaws dawb tseem "ci ntsa iab" tom qab ntxuav, zoo li lawv tau rov ua kom zoo nkauj? Qhov no yog ua tsaug rau cov khoom siv tshuaj lom neeg hu ua "optical brightener agent CBS-X." Cov khoom dawb zoo li qub no ...Nyeem ntxiv -
Lub Luag Haujlwm ntawm Cov Khoom Siv Ci Ntxim Saib Hauv Cov Tshuaj Ntxuav Khaub Ncaws: Txhawb Kom Dawb Thiab Ci Ntxim Rau Cov Khoom Siv Ntxuav Khaub Ncaws Zoo Tshaj Plaws
Cov tshuaj ua kom ci ntsa iab tau siv ua ke nrog cov tshuaj ntxuav khaub ncaws txij li xyoo 1940. Txawm hais tias lawv cov tshuaj ntxuav khaub ncaws tsawg tsawg, lawv muab cov teebmeem dawb thiab ci ntsa iab zoo kawg nkaus, ua rau lawv yog cov khoom siv tseem ceeb thiab nyiam siv hauv kev lag luam tshuaj ntxuav khaub ncaws. Raws li cov ntaub ntawv tsis tiav...Nyeem ntxiv -
Carbodiimide: Tus neeg sawv cev tiv thaiv hydrolysis uas siv dav tshaj plaws thiab muaj txiaj ntsig zoo tshaj plaws
1. Cov tshuaj tiv thaiv hydrolysis feem ntau yog lub hom phiaj los thaiv cov txheej txheem hydrolysis ntawm polyester polymers. Hauv cov ntawv thov siv cov polymers uas muaj ester bonds, xws li PBT, PET, PLA, thiab polyurethanes (TPU, CPU), cov dej molecules yooj yim sib txuas...Nyeem ntxiv -
Lub Tuam Txhab Ua Kom Muaj Xim Zoo Nkauj Optical Brightener Giant BASF Hloov Tes: Cov Chaw Tsim Tshuaj Ntxuav Yuav Tsum Ua Dab Tsi?
BASF tau muag nws txoj kev lag luam ua kom pom kev ci ntsa iab rau Catexel, uas tab tom nthuav dav nws cov khoom lag luam hauv kev lag luam ntxuav khaub ncaws. BASF tau pom zoo muag nws txoj kev lag luam ua kom pom kev ci ntsa iab rau Catexel. Txoj kev lag luam no tam sim no yog ib feem ntawm BASF's Care Chemicals business unit. Optical...Nyeem ntxiv -
Antioxidant 1010: Daim Ntawv Qhia Txog Kev Siv Thiab Xaiv Rau "Vaj Ntxwv ntawm Kev Tiv Thaiv Kev Laus" Hauv Kev Lag Luam Yas
Hauv kev ua cov yas thiab siv cov yas mus sij hawm ntev, kev laus oxidative yog qhov mob tseem ceeb uas txwv tsis pub lub neej thiab kev ua tau zoo ntawm cov khoom - kev ua cov khoom kub siab yooj yim ua rau cov resin puas tsuaj, thiab sab nraum zoov lossis kub siab ...Nyeem ntxiv -
Daim ntawv thov txoj cai ntawm amino resin crosslinking tus neeg sawv cev hauv coatings
Kev piav qhia txog kev siv cov amino resin crosslinking agents Lub luag haujlwm tseem ceeb ntawm amino resins (melamine-formaldehyde, benzomelamine-formaldehyde, thiab urea-formaldehyde resins) hauv thermosetting coatings yog crosslink lub ntsiab zaj duab xis-...Nyeem ntxiv -
Kev Txheeb Xyuas Txog Cov Tshuaj Tiv Thaiv Hluav Taws Xob
Kev tsim cov nqi hluav taws xob electrostatic Lub peev xwm ntawm cov khoom khov kho kom nqa tau ib qho nqi nyob ntawm qhov chaw ntawm qhov chaw, dielectric tas mus li, qhov chaw tiv taus ntawm qhov chaw, thiab qhov av noo ntawm qhov chaw ib puag ncig. Nws lub peev xwm los nqa tau ib qho nqi yog inversely proportional rau nws dielectric tas mus li thiab rel ...Nyeem ntxiv -
Kev Taw Qhia Luv Luv Txog Cov Khoom Siv UV Absorbers thiab Lawv Cov Qauv
I. Cov Lus thiab Cov Lus Txhais Lub hnub ci muaj ntau lub teeb ultraviolet (UV), nrog rau qhov ntev ntawm kwv yees li 290-460 nm, uas ua rau cov khoom muaj xim puas tsuaj. Lub teeb UV no ua rau cov xim molecules lwj thiab ploj mus los ntawm cov tshuaj redox. Kev siv cov khoom nqus UV tuaj yeem ua rau muaj teeb meem...Nyeem ntxiv -
Cov khoom siv "kev tiv thaiv ze" - UV531
Cov khoom siv "kev tiv thaiv ze" --- UV531 Ultraviolet (UV) hluav taws xob - qhov "teeb meem tua neeg" uas tsis pom no - pheej hem lub neej thiab kev ruaj khov ntawm ntau yam khoom siv. Ua ib qho "daim thaiv qhov muag" tiv thaiv hluav taws xob UV, cov khoom nqus UV tau dhau los ua tus neeg saib xyuas tseem ceeb ...Nyeem ntxiv -
Yuav ua li cas xaiv tus neeg sawv cev nucleating rau PP?
Polypropylene yog ib qho polymer siv dav dav hauv ntau daim ntawv thov vim nws cov khoom sib xyaw ua ke zoo heev. Nws cov khoom, xws li lub cev, tshuab thiab kho qhov muag tuaj yeem txhim kho ntxiv nrog kev siv cov neeg sawv cev nucleating thiab cov neeg sawv cev clarifying. Cov additives no pab hauv...Nyeem ntxiv -
Kev Txheeb Xyuas Txog Cov Tshuaj Ntxiv Rau Txheej
I. Hom thiab Kev Ua Haujlwm ntawm Cov Khoom Ntxiv 1. Hom adjuvants (1) Kev faib tawm los ntawm kev ua haujlwm ntawm adjuvants ① Cov khoom ntxiv uas txhim kho kev ua haujlwm ntawm cov txheej txheem, suav nrog cov neeg sawv cev ntub dej, cov khoom tawg, cov khoom ua npuas dej, thiab cov neeg sawv cev tiv thaiv tawv nqaij. ② Cov khoom ntxiv uas txhim kho kev khaws cia thiab kev thauj mus los...Nyeem ntxiv