CMC inoshandisa muIndasitiri yePepa

Pepa giredhi CMCyakavakirwa pa cellulose seyakanyanya mbishi zvinhu, mushure me alkalization uye Ultra-yakanaka kurapwa, uyezve kuburikidza neakawanda kemikari kuita senge crosslinking, etherification uye acidification yakagadzirwa neanion polymer ine ether bond chimiro. Chigadzirwa chayo chakapedzwa chichena kana chakareruka yero poda kana granular matter. Haina muchetura, isinganakidze, isinganhuhwi, ine mvura inochengeta zvakanaka, uye kutetepa kweshear zvakanaka.

Basa guru reCMCSodium carboxymethyl cellulose muindasitiri yemapepa:

CMC inoshandiswa kugadzira pepa rakavharidzirwa. Carboxymethyl cellulose inogona kuwedzera hunyoro hwekuchengetedza kukosha kwejasi kudzivirira kutama kweanonamatira akanyungudika mumvura kune bepa, kuitira kuti iwedzere kuenzana kwejasi uye kugadzirisa kunaka kwejasi.

Nekuti CMC yakanyatsonamira, saka simba rekunamira rakanaka kwazvo, carboxymethyl cellulose inogona kutsiva 3-4 yakagadziridzwa starch kana 2-3 starch derivatives, panguva imwe chete inogona kuderedza kuwanda kwelatex, kubatsira kuvandudza iyo coating yakasimba zvemukati. .

Panguva yekuputira inogona kutamba lubrication effect, kusimbisa kupatsanurwa kwefirimu, iyo firimu yekugadzira chiyero yakanaka kwazvo, inogona kuita yakasimba inoenderera firimu ine kupenya kwakanaka, dzivisa iyo "orange peel" mamiriro. Iyo kemikari zvimiro zve sodium carboxymethyl cellulose CMC yakataura pseudoplastic, ichi chivakwa checarboxymethyl cellulose chinogona kuita kuti iyo coating ive ne "pseudoplastic", zvichikonzera kuonda kwakatetepa pakugera kwepamusoro, kunyanya yakakodzera kune yakakwira yakasimba yemukati coating kana yekumhanya-kumhanya.

Nokuti iyo aqueous solution yeCMC ine kushorwa kune enzymatic hydrolysis uye inert metabolism, iyo yekuputira ine kugadzikana kwakanaka, iyo inoratidzwa mukuchengetedza homogeneity yekuputira, kuitira kuti kupfekedza kusava nyore kukanganisa panguva yekuchengetedza. Chechipiri, CMC inoshandiswa seyepamusoro saizi yemapepa. Iyo saizi yepamusoro yepepa inogona kuwedzera kuomarara, kutsvedzerera, uye kuwedzera kuoma kwayo kwepamusoro uye kupenya.

CMCInogona kunyatso kudzora kubhenda uye kuwana yakanaka yekudhinda kukodzera. Kuwedzera imwe chikamu cheCMC kune saizi yepasi kunogona kuita kuti iyo yepamusoro iwane chisimbiso chakanaka, uye chiso chekudhinda chinogona kuvandudza kujeka kwekudhinda kwemavara uye kuchengetedza inki. CMC aqueous solution ine yakanaka kwazvo kuumbwa kwemafirimu, saka CMC mune yepasi saizi ajenti inokodzera kuumbwa kwefirimu reiyo saizi mumiriri pamusoro pebepa, kuitira kuti ivandudze saizi yepasi.

Nekudaro, nekuda kwemutengo wepamusoro weCMC, inowanzo shandiswa chete kune bepa rine zvakakosha zvinodiwa (bepa remabhengi, pepa rekuchengetedza, pepa rekushongedza, rekuburitsa base bepa uye yepamusoro-giredhi-yakapetwa kaviri-inonamira bepa).

CMC inoshandiswa mukunyorova kwekupedzisira kwemuchina wemapepa kuwedzera, munguva yakapfuura, sodium carboxymethyl cellulose CMC muindasitiri yekugadzira mapepa inonyanya kushandiswa mukuputira uye saizi yepasi, pulp nekuvandudzwa kwesainzi uye tekinoroji, mumakore achangopfuura nyika ine zvakawanda. yevagadziri vemapepa kuburikidza nekunyorova kwekupedzisira CMC yakawedzerwa kuvandudza mhando yezvigadzirwa uye kubudirira kwakakoshawo.

Kuwedzera CMC kumagumo emvura kunopa akawanda mabhenefiti makuru:

1.Kuti uvandudze kuenzana kwepepa CMC yakanaka kwazvo dispersant, nyungudika iva colloidal reagent CMC inowedzerwa pakurapa slurry mushure mekusanganiswa nyore ne pulp fiber uye kuzadza zvinhu zvimedu, nekuda kwekuita electronegative CMC inonyungudika mumvura, ichazvigadzira pachayo. yatove nepepa fiber uye mafirita ezvimedu zvechaji yakaipa electronegativity inowedzera, Zvimedu zvine mutero wakafanana zvinodzinga mumwe nemumwe, uye iyo fiber uye kuzadza mupepa kumiswa ichave yakagovaniswa zvakaenzana, izvo zvinonyanya kufarira kuumbwa kwepepa. indasitiri, uyezve kuwedzera kufanana kwepepa.

2. Kuvandudza simba remuviri wepulp kuti uvandudze kufanana kwepulp kunobatsira kuwedzera kuwanda kwemuviri wepulp (senge: kuoneka density, kubvaruka, kureba kwekutsemuka, kutyora kuramba uye kupeta kupeta), CMC mukushandurwa kwepepa kufanana pa. panguva imwe chete inowedzerawo simba remuviri wepulp. CMC chimiro chine carboxymethyl inogona kunwa hydroxyl pane fiber inotungamira kune mukomboni reaction, simbisa chisungo chesimba pakati pemafayibha, kuburikidza nekugadzirwa kwemuviri kwemaitiro ekugadzira kuseri kwemushini wepepa, iyo chisungo pakati pemafibhi ichawedzerwa zvakanyanya, mhedzisiro ye muviri mukuru pane pepa peji ndiko kuwedzera kwese kwekusimba kwemuviri.

Pepa giredhi CMC inoshandisa:

Muindasitiri yemapepa, CMC inoshandiswa mukupuruzira, iyo inogona kuvandudza mwero wekuchengetedza uye kuwedzera simba rakanyorova. Inoshandiswa pakukura kwepamusoro, seye pigment excipient, kuvandudza kunamatira kwemukati, kuderedza guruva rekudhinda, kunatsiridza kudhinda mhando; Inoshandiswa pakuputira mapepa, inobatsira kupararira uye fluidity ye pigment, inosimudzira kutsvedzerera kwepepa, kutsvedzereka, optical zvivakwa uye kudhinda kuchinjika. Muindasitiri yemapepa sechinhu chinoshanda uye huwandu hwakawanda hwekuwedzera, kunyanya nekuda kweiyo-inonyungudika yepolymer firimu kuumbwa uye kuramba kwemafuta.

●Inoshandiswa pakuyera bepa, kuitira kuti bepa rive nepamusoro density, yakanaka inki permeability kuramba, yakakwira wax muunganidzwa uye kutsvedzerera.

●Inogona kuvandudza bepa remukati fiber viscosity state, kuitira kuti uvandudze bepa simba uye kupeta kuramba.

●Mumapepa uye mapepa ekupenda kwemavara, CMC inobatsira kudzora kuyerera kwemavara paste uye yakanaka inki kutora.

Kazhinji, iyo yakakurudzirwa dosage ndeye 0.3-1.5%.