Cov kab lus no feem ntau xaiv MMA, BA, AA ua monomers, thiab sib tham txog cov yam ntxwv ntawm graft polymerization nrog lawv, xws li kev sib txuas ntxiv, cov nyiaj ntxiv thiab cov tshuaj tiv thaiv kub ntawm cov neeg pib thiab txhua tus monomer, thiab pom qhov zoo tshaj plaws graft polymerization txheej txheem. Cov roj hmab yog thawj masticated, ces nplawm thiab yaj nrog ib tug tov hnyav ntawm 70 ~ 80 ° C, thiab ces tus pib BPO yog ntxiv rau hauv batch. Thawj monomer MMA yaj nrog BOP yog ntxiv ntawm 80 ~ 90 ° C rau 20 feeb, thiab tom qab ntawd ntxiv nrog lub monomer thib ob ntawm BPO, tom qab 20 feeb ntxiv, ntxiv cov monomer thib peb ntawm 84 ~ 88 ℃ thiab do rau 45 feeb, khaws cia. sov li 1.5 ~ 2 teev, ces tau CR/MMA-BA-AA peb-txoj kev graft polymerization nplaum, Peel zog ntau dua CR / MMA-BA, nws tus nqi yog 6.6 KN.m-1.
Cov lus tseem ceeb: Neoprene nplaum, Khau nplaum, Multi-component grafted neoprene nplaum.
Cellulose etherMCthiabHPMCmuaj kev ua haujlwm zoo dispersion, emulsification, thickening, adhesion, tsim zaj duab xis, dej tuav, thiab kuj muaj cov dej solubility zoo heev, kev ua haujlwm saum npoo av, kev ruaj ntseg, thiab kev tawg hauv cov kuab tshuaj organic.
Cov khoom tseem ceeb tam sim no tsim yog RT series MC thiab HPMC ntau yam, uas nws cov qib yog 50RT (Methylcellulose), 60RT (Hydroxypropylmethylcellulose), 65RT (Hydroxypropylmethylcellulose), 75RT (Hydroxypropylmethylcellulose), sib raug rau cov qib Cheebtsam ntawm Methyl Cellulose, D. F thiab K, raws.
RT series cov khoom lag luam muaj txiaj ntsig zoo hauv cov khoom siv hauv tsev vim tias lawv cov cohesiveness, suspension stability thiab dej tuav. Piv txwv li, lawv tuaj yeem tsim tau rau hauv cov khoom zoo "ceramic wall thiab floor tile adhesives", feem ntau hu ua roj hmab hmoov, uas tau siv nyob rau hauv Beijing West Railway Station, cov nyhuv yog zoo. Tsis tas li ntawd, nws tuaj yeem siv los ua gelled electrolyte nyob rau hauv electrolytic capacitors thiab bonded electrode daim phiaj hauv cov khoom siv hluav taws xob, xws li atropine, aminopyrine thiab anal crystals hauv tshuaj, thiab ua cov thickener rau dej emulsions hauv cov xim. Nyob rau hauv cov xim latex thiab cov xim dej-soluble, nws tuaj yeem siv los ua cov yeeb yaj kiab tsim, thickener, emulsifier thiab stabilizer, thiab lwm yam rau wallpaper adhesion, dej rewetting roj hmab hmoov, thiab lwm yam.
Cov lus tseem ceeb: Methyl Cellulose, Hydroxy Propyl Cellulose, nplaum, daim ntawv thov.
Txoj kev loj hlob ntawm dej-raws li daim ntawv yas tes kua nplaum
Nyob rau hauv xyoo tas los no, cov txheej txheem tshiab ntawm pasting yas zaj duab xis ntawm cov ntawv luam tawm tau tsim. Nws yog BOPP (biaxially oriented polypropylene zaj duab xis) coated nrog cov nplaum thiab tom qab ntawd sib txuas nrog cov ntawv luam tawm tom qab raug nias los ntawm lub tog raj kheej roj hmab thiab lub tshuab cua sov los ua ib daim ntawv. / Yas 3-hauv-1 luam ntawv. Qhov no suav nrog cov teeb meem ntawm daim ntawv thiab cov yas sib txuas. BOPP yog cov khoom uas tsis yog-polar, yog li ntawd, yuav tsum muaj cov nplaum nplaum uas muaj qhov zoo adhesion rau ob qho tib si polar thiab non-polar.
Kev sib xyaw SBS nplaum nrog epoxy resin muaj kev sib raug zoo. SBS yog elastomer viscose. Nws tuaj yeem pom los ntawm nws qhov tsis ua haujlwm nkhaus uas txhawm rau txhawm rau txhim kho cov nplaum ua kom puas tsuaj ntawm cov viscose, nws yuav tsum tau tswj hwm ib puag ncig SBS: epoxy resin = 2: 1. Los ntawm tev lub zog nkhaus, nws tuaj yeem pom tias thaum qhov sib piv siab, lub tev lub zog yuav zoo heev, tab sis qhov adhesion tseem yuav nce ntxiv. Txhawm rau kom tsis txhob muaj adhesion, SBS: epoxy resin = 1: 1 ~ 2.5: 1 tuaj yeem tswj tau kom tau txais lub zog maj mam nce tev. Xav paub ntau ntxiv, txiav txim siab SBS hauv cov kua nplaum tseem ceeb: epoxy resin = 1: 1 ~ 3.5: 1.
Lub luag haujlwm tseem ceeb ntawm kev siv tackifying resin yog txhawm rau ua kom lub zog sib txuas ntawm cov matrix thiab txhim kho cov wettability ntawm cov kua nplaum thiab cov khoom sib txuas. Cov tackifying resin siv nyob rau hauv txoj kev tshawb no yog ib tug rosin tackifier muaj li ntawm rosin zoo tib yam thiab dimerized rosin nyob rau hauv sib txawv proportions. Los ntawm ntau qhov kev ntsuam xyuas, nws tau txiav txim siab tias feem pua ntawm cov dimerized rosin nyob rau hauv lub tackifier yog 22.5%, thiab tev lub zog ntawm cov kua nplaum npaj raws li qhov piv txwv no yog 1.59N / 25mm (paper-yas).
Tus nqi ntawm tackifier muaj qee yam cuam tshuam rau cov khoom nplaum. Qhov txiaj ntsig zoo tshaj plaws yog thaum qhov sib piv ntawm cov kua nplaum tseem ceeb thiab tackifier yog 1: 1. Peel zog N/mm yas-yas 1.4, ntawv-yas 1.6.
Hauv txoj kev tshawb no, MMA tau siv los ua qhov sib xyaw ua ke rau SBS thiab MMA. Kev sim tau pom tias kev siv MMA tsis tuaj yeem ua tiav lub hom phiaj ntawm kneading cov khoom hauv cov colloid, tab sis kuj txo cov viscosity thiab txhim kho cov nplaum nplaum. Yog li ntawd, MMA yog qhov tsim nyog hloov kho diluent. Tom qab kev sim, tus nqi ntawm MMA siv yog tag nrho cov kua nplaum 5% ~ 10% yog qhov tsim nyog.
Txij li cov formulated viscose yuav tsum yog dej-soluble, peb xaiv dawb latex (polyvinyl acetate emulsion) ua cov dej-soluble carrier. Tus nqi ntawm cov latex dawb tso nyiaj rau 60% ntawm tag nrho cov viscose. Tom qab cov dej-raws li viscose yog emulsified rau hauv dej-emulsion xeev los ntawm dispersion thiab emulsification ntawm emulsified cab kuj, yog hais tias nws diluted sib xws tsis haum rau siv, nws yuav tsum diluted nrog dej. Txoj kev dilution no yog tus nqi qis thiab tsis muaj tshuaj lom (tsis tas yuav siv cov kuab tshuaj organic), thiab qhov zoo tshaj plaws ntawm cov dej dilution yog 10% ~ 20%.
Txhawm rau tshem tawm cov seem ntawm viscose, nws raug kuaj tias dilute Na2CO3 tov yog siv los ua tus neeg sawv cev alkalizing, thiab cov nyhuv yog qhov zoo tshaj plaws. Txoj kev xav ntawm cov nyhuv ntawm alkalizing tus neeg sawv cev yuav yog tias cov tshuaj tiv thaiv saponification qhia txog qee qhov muaj zog polar ions, xws li sodium ions, kom cov thawj insoluble rosin acid hloov mus rau Soluble sodium ntsev. Tsis tas li ntawd, yog tias lub hauv paus muaj zog heev ntxiv rau cov kua nplaum, cov nplaum nplaum yuav ploj, yog li cov kua nplaum tsis ua haujlwm, yog li cov kua nplaum tsis haum rau alkaline ib puag ncig.
Tsim nyog txheej txheem ntws.
Lub sij hawm xa tuaj: Plaub Hlis-25-2024