Chothandizira cha nucleating ndi mtundu wa chowonjezera chatsopano chomwe chingathandize kukonza mawonekedwe ndi kapangidwe ka zinthu monga kuwonekera bwino, kunyezimira kwa pamwamba, mphamvu yogwira, kulimba, kutentha kosinthasintha kwa kutentha, kukana kugwedezeka, kukana kugwedezeka, ndi zina zotero mwa kusintha momwe ma resin amagwirira ntchito. Chimagwiritsidwa ntchito kwambiri popanga mapulasitiki osapangidwa bwino monga polyethylene ndi polypropylene m'magalimoto, zida zapakhomo, chakudya, zamagetsi, ndi zamankhwala. Mwachitsanzo, chothandizira cha nucleating ndi chinthu chofunikira kwambiri popanga ma resin apamwamba monga polypropylene yosungunuka kwambiri, polypropylene yatsopano yolimba kwambiri, kulimba kwambiri, ndi polypropylene yolimba kwambiri, polypropylene ya β-crystalline, ndi zinthu za polypropylene zosinthidwa kuti zigwiritsidwe ntchito m'makoma a magalimoto. Powonjezera zinthu zinazake za nucleating, ma resin okhala ndi kuwonekera bwino, kulimba, ndi kulimba amatha kupangidwa. Chifukwa cha kuwonjezeka kwakukulu kwa kupanga kwa polypropylene yapamwamba kwambiri komwe kumafuna kuwonjezera zinthu zopangira nucleating komanso kukula kwachangu kwa kufunikira kwa zopepuka zamagalimoto ndi zolekanitsa mabatire a lithiamu, pali kuthekera kwakukulu kwa msika wa zinthu zopangira nucleating mu.

Pali mitundu yambiri yazinthu zopangira nucleating, ndipo magwiridwe antchito awo akupitilizabe kukhala abwino. Malinga ndi mitundu yosiyanasiyana ya makristalo yomwe imayambitsa ma nucleating agents, amatha kugawidwa m'magulu a α-crystalline nucleating agents ndi β-crystalline nucleating agents. Ndipo ma nucleating agents a α-crystalline amatha kugawidwanso m'magulu a inorganic, organic, ndi polymer kutengera kusiyana kwawo kwa kapangidwe kake. Ma nucleating agents a inorganic makamaka amaphatikizapo ma nucleating agents omwe adapangidwa kale monga talc, calcium oxide, ndi mica, omwe ndi otsika mtengo komanso osavuta kupeza koma ali ndi mawonekedwe osawoneka bwino komanso kuwala kwa pamwamba. Ma nucleating agents achilengedwe makamaka amaphatikizapo carboxylic acid metal salts, phosphate metal salts, sorbitol benzaldehyde derivatives, ndi zina zotero. Pakati pawo, sorbitol benzaldehyde derivatives pakadali pano ndi omwe ali ndi ma nucleating agents okhwima kwambiri, omwe amagwira ntchito bwino kwambiri komanso mitengo yotsika, ndipo akhala mtundu wa ma nucleating agents omwe apangidwa mwachangu, osiyanasiyana, komanso akuluakulu kwambiri mdziko muno komanso padziko lonse lapansi. Ma nucleating agents a polymer makamaka ndi ma nucleating polymeric nucleating agents okwera kwambiri, monga polyvinylcyclohexane ndi polyvinylpentane. Ma β-crystalline nucleating agents makamaka amakhala ndi mitundu iwiri: kuchuluka kochepa kwa ma polycyclic compounds okhala ndi kapangidwe ka quasi-planar, ndi omwe amapangidwa ndi ma dicarboxylic acid ndi ma oxides ena, ma hydroxides, ndi mchere wa zitsulo kuchokera ku Gulu IIA la tebulo la periodic. Ma β-crystalline nucleating agents amatsimikizira kutentha kwa zinthu zomwe zimakhudzidwa ndi kutentha kwinaku zikuwonjezera kukana kwawo kukhudzidwa.

Zitsanzo za Ntchito za Zamalonda ndi Kugwiritsa Ntchito kwa Nucleating Agents