Lub cev muaj zog thiab kev siv ntawm cov dej ntws zoo

Lub cev muaj zog:

(A) Concentration

qhov concentration ntawm cov latex nrog tag nrho cov khoom siv thiab cov roj hmab qhuav. Cov ntsiab lus ntawm cov roj hmab qhuav yog hais txog cov roj hmab qhuav hauv latex, tag nrho cov ntsiab lus yog hais txog tshem tawm cov dej thiab cov khoom tsis zoo hauv cov latex tom qab tag nrho cov ntsiab lus ntawm cov khoom, qhia hauv feem pua. Tag nrho cov ntsiab lus thiab cov ntsiab lus roj hmab qhuav feem ntau muaj qhov sib txawv, qhov nqi no yog hu ua tag nrho qhuav, los qhia txog qhov tsis muaj roj hmab cov ntsiab lus hauv latex. Cov ntsuas no los coj kev tsim khoom thiab cov khoom zoo muaj qhov tseem ceeb.

tshiab latex concentration txawv nrog rau hom ntoo hnub nyoog, lub caij, tapping system sib txawv, nruab nrab 20% 40% ntawm tag nrho cov khoom cov ntsiab lus.

(2) txheeb ze ntom ntom

tus txheeb ze ntom ntom ntawm cov latex tshiab txog 0. 96 - 0. 98, nws yog ua los ntawm whey txheeb ze ntom ntom (1. 02) Thiab qhov txheeb ze ntawm cov roj hmab hydrocarbon (0. 9064). Kev txiav txim siab, los ntawm qhov txheeb ze qhov sib npaug tuaj yeem kwv yees ntsuas ntawm cov roj hmab hydrocarbon cov ntsiab lus hauv latex. Cov ntsiab lus yog siab dua, latex roj hmab hydrocarbon txheeb ze qhov ntom yog me me, raws li qhia hauv cov lus.

(3) viscosity

tag nrho cov khoom muaj nyob rau hauv li 35% ntawm cov latex viscosity tshiab txog 12 - 15 mpa·S, nrog rau lub sij hawm sau, thiab lwm yam thiab muaj kev hloov zoo heev. Cov ntsiab lus tag nrho cov ntsiab lus siab viscosity yog siab, tab sis tib yam tag nrho cov ntsiab lus ntawm latex, raws li txoj kev khaws cia, lub sij hawm cia, particle loj, thiab lwm yam, viscosity txheeb ze sib txawv yuav tshwm sim.

(4) Nto nro

surface tension shows that the size of the latex were distributed evenly over a solid surface - performance - - - - - - - The stand or fall of so-called wetting performance. Roj hmab yog insoluble hauv dej, tab sis muaj ntau cov latex tuaj yeem txo qhov nro ntawm cov dej saum npoo av, xws li cov protein, fatty acids, lawv tuaj yeem txo qhov nro ntawm latex. Xws li cov ntsiab lus tag nrho yog 38% ~ 40% ntawm cov latex, qhov nro ntawm thaj tsam ntawm 38 ~ 40 mn / m, deb tshaj dej (72mN / m) Tsawg, thiab yog li ntawm cov dej hydrophilic nto xws li ntaub, tawv thiab lwm yam ntub dej thiab nkag tau tuaj yeem muaj peev xwm feem ntau tau nce, xws li txo qhov nro ntawm cov khoom tsim tawm tsis tuaj yeem xav tau ntxiv thaum lub sijhawm latex. surfactants, txhawm rau txhim kho qhov kev ua tau zoo ntawm qhov chaw, ua kom cov dej noo.

（ 5) PH

latex PH muaj txiaj ntsig zoo rau nws txoj kev ruaj ntseg. Cov latex tshiab yog nruab nrab thiab me ntsis alkaline, PH tus nqi ntawm 7 txog 7. 2. Tom qab cov sij hawm mus rau ntau tshaj kaum teev, vim hais tias ntawm cov kab mob thiab enzymes nyob rau hauv latex yuav txo tau thiab ua acidic PH nqi, thiaj li ua rau solidification. Yog li ntawd, feem ntau ntxiv ammonia lossis lwm yam alkali, ua rau PH mus txog 10 ~ 10. 5, txhawm rau txuag tau lub sijhawm ntev.

daim ntawv thov:

nws yog tsuas yog siv rau: (cov khoom siv latex impregnated Hnub so, cov khoom ua si) Lub zais pa, Kev kho mob, tsev neeg, kev lag luam) hnab looj tes, pacifiers, hnab looj tes;

Cov khoom siv sponge: sponge (Cov txaj txaj, hauv ncoo, khau khoom hauv qab cushion) ;

kev txhaj tshuaj molding khoom: cov khoom ua si latex, roj qhov ncauj qhov ntswg, khoom siv hauv tsev, khau;

molding khoom: roj hmab caij nplooj ntoos hlav hlau, khoom siv kho mob;

: (lwm yam kev siv plaub hau, xim av, tsiaj txhu thiab nroj tsuag thiab cov hluavtaws fiber ntau, tawv tawv) kua nplaum, flocking, nonwoven fabric, ntaub pua plag, textile, papermaking, thiab nplaum, thiab lwm yam