Kev paub | latex thiab latex caij nplooj ntoos hlav txaj

Latex (乳胶) Xa mus rau cov khoom siv polymer uas tau tawg nyob rau hauv dej los tsim cov colloidal emulsion, tseem hu ua latex. Cov cwj pwm yuav ib co hu ua latex roj hmab hais, thiab ib co hu ua emulsion resin hais. Nrog cov khoom siv raw khoom ua los ntawm cov khoom siv latex, xws li daim txhuam cev, hnab looj tes, cov khoom ua si, roj hmab hose, thiab lwm yam. Latex tuaj yeem muab faib ua tej yam ntuj tso, hluavtaws thiab hluavtaws 3 chav kawm. (1) lub ntuj latex los ntawm cov ntoo roj hmab tsob ntoo yuav tsum nyob rau hauv lub sij hawm raws li kev cai ntawm incision ntawm tapping outflow ntawm cov kua, muaj mis nyuj-dawb, cov ntsiab lus yog 30% ~ 40%, nruab nrab roj hmab particle txoj kab uas hla ntawm 1. 6 microns. Cov roj hmab tshiab tshiab muaj pes tsawg leeg 27% ~ 41. 3% (Zoo) 0, 44% ~ 70% dej, protein. 2% ~ 4. 0, natural resin 2% ~ 5%, qab zib 5%. 36% ~ 4. 2%, ash ntsiab lus 0. 4%. Txhawm rau tiv thaiv lub ntuj latex solidification los ntawm cov kab mob, kev ua ntawm enzymes, feem ntau koom nrog ammonia thiab lwm yam stabilizer. Ntuj latex feem ntau yog siv rau kev tsim cov khoom siv sponge, cov khoom extruded thiab impregnated khoom. (2) Composite latex feem ntau ua los ntawm emulsion polymerization, xws li polybutadiene latex, butyl benzene latex. Ua kom cov ntsiab lus ntawm 40% ~ 70%, ua ntej ua cov roj hmab hais agglomeration rau hauv cov khoom loj, ces siv txoj kev zoo ib yam li ntuj latex concentrate. Synthetic latex yog siv rau cov ntaub pua plag, papermaking, textile, printing, txheej thiab nplaum industries. (3) hluavtaws latex yog ib hom roj hmab latex emulsion polymerization. Ntxiv dej thiab colloid generated tov polymerization surfactant, ua rau cov roj hmab hais dispersed nyob rau hauv dej, thiab ces steamed ntxiv rau hnyav. Yog tias cov roj hmab tsis tau yaj tag nrho hauv cov kuab tshuaj, cov roj hmab nyoos thiab cov roj hmab tuaj yeem nyob rau hauv lub xub ntiag ntawm aqueous theem uas muaj emulsifier, kneading, kom txog rau thaum ib co ntaub ntawv ruaj khov roj hmab. Lub hom phiaj ntawm cov hluavtaws latex thiab hluavtaws latex yog qhov zoo ib yam. Cov dej ntws ntawm ntuj roj hmab latex yog ib hom kua mis dawb, zoo li mis nyuj. Ntuj latex yog ib yam khoom ntawm cov khoom siv hluavtaws, vim yog tsob ntoo, geology, kev nyab xeeb, thiab lwm yam kev mob uas muaj feem xyuam nrog cov qauv thiab cov qauv colloid feem ntau yuav tshwm sim loj. Tsis muaj cov khoom siv ntawm cov latex tshiab, roj hmab hydrocarbon suav tsuas yog 20% ntawm tag nrho cov nyiaj 40%, tus so yog me me ntawm cov roj hmab tivthaiv thiab dej. Roj hmab Cheebtsam ntawm cov protein, lipid, carbohydrate thiab inorganic Cheebtsam, thiab lwm yam. , lawv yog ib feem ntawm thiab roj hmab hais rau hauv cov qauv compound, ib feem ntawm cov yaj whey los yog nyob rau hauv daim ntawv ntawm cov roj hmab hais. Lub caij nplooj ntoos hlav caij nplooj ntoos hlav yog hais txog cov kua txiv hmab txiv ntoo uas tau sau los ntawm cov ntoo roj hmab, los ntawm cov txheej txheem zoo tshaj plaws nrog cov cuab yeej siv niaj hnub thiab thev naus laus zis los kos, ua npuas ncauj, gel, sulfide, ntxuav, ziab, molding thiab ntim cov txheej txheem tom qab lub neej tso tawm muaj ntau yam khoom zoo rau tib neeg lub cev zoo niaj hnub ntsuab noj qab haus huv chav pw khoom siv. Ua npuas ncauj roj hmab yog npuas pore qauv rau feem ntau rau tag nrho lub qhov los yog qhov, ob peb tsis txawm lub qhov ntawm cov khoom siv roj hmab ntxeem tau. Yog siv cov khoom siv latex hauv cov khoom latex yog ib qho loj tshaj plaws. Nrog siab elasticity, nqus poob siab, tsis kam mus rau compression qaug zog, nqa kev sib deev zoo, xis nyob thiab ruaj khov, thiab lwm yam. Ua los ntawm npuas roj hmab latex lub caij nplooj ntoos hlav txaj nrog siab elasticity, tuaj yeem ua tau raws li qhov xav tau ntawm pawg sib txawv, nws cov kev txhawb nqa zoo tuaj yeem hloov mus rau ntau txoj haujlwm pw tsaug zog. Lub caij nplooj ntoos hlav lub caij nplooj ntoos hlav lub cev tiv tauj thaj tsam ntawm thaj tsam yog ntau dua li lub caij nplooj ntoos hlav txaj txaj sib cuag nrog tib neeg lub cev, tuaj yeem txhais tau tias muaj kev sib haum xeeb ntawm lub cev hnyav, nrog kev ua haujlwm ntawm kev pw tsaug zog tsis zoo, ntau dua qhov ua kom tsis muaj menyuam. Lwm tus yam ntxwv loj ntawm lub caij nplooj ntoos hlav latex lub txaj yog tsis muaj suab nrov, tsis muaj kev vibration, zoo txhim kho kev pw tsaug zog zoo, permeability yog qhov zoo, tam sim no tus nqi lag luam yog siab heev. Qhov zoo: molded los ntawm evaporation, nws tus kheej ntau lab tus porosity, permeability thiab vim lub porosity ntawm qhov chaw yog du, yog li nws tsis tuaj yeem txuas xws li kab kab, thiab cov kua txiv hmab txiv ntoo muaj cov yam ntxwv tseem ceeb yog tias nws xa tawm cov ntxhiab ntawm ntau yoov tshaj cum tsis kam kaw. Zoo elasticity, deformation, tuaj yeem ntxuav, ruaj. Yog ib yam khoom zoo rau kev noj qab haus huv. Lub ntuj latex los ntawm cov ntoo roj hmab SAP, vim nws tus kheej muaj ntau qhov pores, yog li muaj qhov zoo permeability. Latex yog xwm txheej tib neeg pw tsaug zog zoo khoom plig, latex caij nplooj ntoos hlav txaj txaj, hauv ncoo yog lub ntsiab ntawm lub ntiaj teb no cov teb chaws siab tshaj saum txaj. Hauv Tebchaws Europe, nws tau pom tias, tshem tawm kev qaug zog, pw tsaug zog yuav tsum siv lub txaj pw, muab kev txhawb nqa tsis tu ncua thiab muag muag. Latex cov yam ntxwv tshwj xeeb, tuaj yeem tsis tsuas yog ua tau raws li qhov xav tau ntawm cov neeg siv khoom, ntau dua nyob rau hauv txoj kab nrog cov qauv ntawm kev rov qab mus rau qhov xwm txheej. Txhua xyoo ntau lab tus tib neeg nyob hauv Tebchaws Europe mus yuav cov ntaub pua tsev latex. Disadvantages: oxidation thaum latex raug ultraviolet lub teeb. Yog li ntawd xyuam xim rau lub caij nplooj ntoos hlav txaj thiab tu, tsis yog nws ntev raug rau lub hnub