Mitundu ndi Kagwiritsidwe ka mankhwala a pepala

Mankhwala a mapepala amatanthauza mankhwala osiyanasiyana omwe amagwiritsidwa ntchito popanga mapepala, nthawi zambiri zothandizira.Kuphatikizapo zinthu zambiri:

pulping mankhwala (monga zothandizira kuphika, deinking agents, etc.)

Zida zophikira: zomwe zimagwiritsidwa ntchito kufulumizitsa kuthamanga ndi kukolola kwa kuphika kwamankhwala, zomwe zimagwiritsidwa ntchito nthawi zambiri zimakhala ndi anthraquinone ndi zotumphukira za quinone, zowonjezera ndi zina zotero.

Deinking agent: Amagwiritsidwa ntchito popanganso zinyalala zobwezeretsanso mapepala ndikuwongoleranso, zomwe zimatha kusintha kuyera kwa zamkati ndikuchotsa zonyansa zosiyanasiyana monga madontho a inki, ndi zina zambiri. detergent, ndi anti-reprecipitant.

mankhwala apepala (monga zoyezera zamkati, zoyezera pamwamba, ndi zina zotero):

Pulp sizing agent: sizing agent anawonjezera pa zamkati, kuti atenge gawo la kukula, nthawi zambiri rosin saponification chingamu, kulimbikitsa rosin chingamu, omwazika rosin chingamu (anionic omwazika rosin chingamu, cationic omwazika rosin chingamu), AKD ndi ASA ndi zina zotakataka. synthetic neutral sizing agent, petroleum resin sizing agent ndi zina zotero.

Pamwamba saizi wothandizila: ntchito pamwamba saizi ya pepala kukonza pamwamba mphamvu ya pepala, kuchepetsa ufa, lint ndi zochitika zina, makamaka kusinthidwa wowuma, monga oxidized wowuma, wowuma acetate, crosslinked wowuma;kusinthidwa mapadi, monga carboxymethyl cellulose;ma polima opangidwa, monga polyvinyl mowa, polyacrylates, styrene maleic anhydride copolymers, emulsions sera ndi zina zotero;polima zachilengedwe, monga chitosan, gelatin ndi zina zotero.

mankhwala opangira mapepala (monga antifoam wothandizira, zokutira zothandizira)

antifoam wothandizira: ntchito pulping, papermaking, ❖ kuyanika ndi njira zina defoaming, mitundu ikuluikulu malasha manja kapena emulsified palafini, mafuta acid esters, otsika carbon alcohols, silicones, amides ndi zina zotero.

❖ kuyanika othandizira: mafuta, monga calcium stearate kubalalitsidwa;zotetezera, monga isothiazolinone, p-chloro-m-toluene;dispersing agents, monga sodium hexametaphosphate, sodium polyacrylate;zosintha mamasukidwe akayendedwe, monga CMC, alkali sungunuka kukweza sodium polyacrylate ndi zina zotero.

Cholinga chake ndi kupititsa patsogolo ubwino wa mapepala ndi kupanga bwino, kupititsa patsogolo ntchito, kuchepetsa ndalama zopangira, kuonjezera phindu lachuma ndikupanga mitundu yatsopano ya mapepala.