Pulasitiki nkhungu ndi chidule cha nkhungu ophatikizana ntchito psinjika akamaumba, extrusion akamaumba, jekeseni, kuwomba akamaumba ndi otsika thovu akamaumba.Kusintha kogwirizana kwa nkhungu zowoneka bwino komanso zopindika komanso makina othandizira opangira amatha kukonza magawo angapo apulasitiki amitundu yosiyanasiyana komanso makulidwe osiyanasiyana.Kuumba kwa pulasitiki ndiye mayi wamakampani, ndipo kutulutsa kwatsopano tsopano kumaphatikizapo mapulasitiki.

Zimaphatikizanso nkhungu yachikazi yokhala ndi kabowo kakang'ono kopangidwa ndi nkhungu yachikazi yophatikizira gawo lapansi, chigawo cha nkhungu chachikazi ndi bolodi lachikazi lophatikizira makadi, ndi gawo lophatikizika la convex mold, chigawo cha convex mold, bolodi lachimuna lophatikizana, a chigawo chodulira pabowo ndi nkhonya yokhala ndi phata losinthika lopangidwa ndi mbale zamagulu odulidwa m'mbali.
Kuti mapulasitiki agwire bwino ntchito, zida zosiyanasiyana zothandizira, monga ma fillers, plasticizers, lubricant, stabilizers, colorants, etc., ziyenera kuwonjezeredwa ku polima kuti akhale mapulasitiki ochita bwino.

1. Synthetic resin ndiye chinthu chofunikira kwambiri pamapulasitiki, ndipo zomwe zili m'mapulasitiki nthawi zambiri zimakhala 40% mpaka 100%.Chifukwa chakuti zomwe zili mkati mwake ndi zazikulu, ndipo mtundu wa utomoni nthawi zambiri umatsimikizira mtundu wa pulasitiki, anthu nthawi zambiri amawona kuti utomoniwo ndi ofanana ndi pulasitiki.Mwachitsanzo, sokonezani utomoni wa polyvinyl chloride ndi mapulasitiki a polyvinyl chloride, ndi ma phenolic resins ndi mapulasitiki a phenolic.M'malo mwake, utomoni ndi pulasitiki ndi malingaliro awiri osiyana.Utoto ndi polima yaiwisi yosakonzedwa yomwe simagwiritsidwa ntchito popanga mapulasitiki okha, komanso ndi zinthu zopangira zokutira, zomatira, ndi ulusi wopangira.Kuphatikiza pa gawo laling'ono kwambiri la mapulasitiki okhala ndi utomoni wa 100%, mapulasitiki ambiri amafuna zinthu zina kuwonjezera pa chigawo chachikulu cha utomoni.

2. Filler Filler imatchedwanso filler, yomwe imatha kupititsa patsogolo mphamvu ndi kutentha kwa mapulasitiki ndikuchepetsa ndalama.Mwachitsanzo, kuwonjezera ufa wa nkhuni ku phenolic resin kumatha kuchepetsa mtengo wake, kupanga pulasitiki ya phenolic kukhala imodzi mwamapulasitiki otsika mtengo, komanso kuwongolera kwambiri mphamvu zamakina.Zodzaza zitha kugawidwa m'mitundu iwiri: organic fillers ndi inorganic fillers, zakale monga ufa wamatabwa, nsanza, mapepala ndi ulusi wansalu zosiyanasiyana, ndipo zotsirizirazo monga ulusi wagalasi, dziko lapansi la diatomaceous, asibesitosi, ndi kaboni wakuda.

3. Plasticizers Plasticizers amatha kuwonjezera pulasitiki ndi kusinthasintha kwa mapulasitiki, kuchepetsa kuphulika, ndi kupanga mapulasitiki osavuta kukonza ndi mawonekedwe.Mapulasitiki nthawi zambiri amakhala owiritsa kwambiri omwe amasakanikirana ndi utomoni, wopanda poizoni, wopanda fungo, komanso wosasunthika pakuwala ndi kutentha.Zomwe zimagwiritsidwa ntchito kwambiri ndi phthalate esters.Mwachitsanzo, popanga mapulasitiki a polyvinyl chloride, ngati mapulasitiki owonjezera amawonjezeredwa, mapulasitiki ofewa a polyvinyl chloride angapezeke;ngati palibe mapulasitiki owonjezera kapena ochepera (kuchuluka kwa <10%), mapulasitiki olimba a polyvinyl chloride atha kupezeka.

4. Stabilizer Pofuna kuteteza utomoni wopangidwa kuti usawonongeke ndikuwonongeka ndi kuwala ndi kutentha panthawi yokonza ndi kugwiritsira ntchito, komanso kuwonjezera moyo wautumiki, stabilizer iyenera kuwonjezeredwa ku pulasitiki.Zomwe zimagwiritsidwa ntchito kwambiri ndi stearate ndi epoxy resin.

5. Colorants Colorants amatha kupanga mapulasitiki kukhala ndi mitundu yowala komanso yokongola.Nthawi zambiri amagwiritsidwa ntchito utoto organic ndi inorganic pigments ngati colorants.

6. Mafuta opangira mafuta Ntchito ya mafuta ndi kuteteza pulasitiki kuti isamamatire ku nkhungu yachitsulo panthawi yopangira, ndipo nthawi yomweyo imapangitsa kuti pulasitiki ikhale yosalala komanso yokongola.Mafuta omwe amagwiritsidwa ntchito kwambiri ndi stearic acid ndi mchere wake wa calcium ndi magnesium.Kuphatikiza pazowonjezera pamwambapa, zoletsa moto, zotulutsa thovu, antistatic agents, ndi zina zambiri zitha kuwonjezeredwa ku pulasitiki.