Mukuita kweplasticizing epurasitiki mbishi zvinhu, imwe kana anopfuura eanotevera mamiriro anowanzoitika, senge rheology yemapolymers uye shanduko yemuviri nemakemikari zvimiro, izvo zvinowanzo zivikanwa neinotevera zvivakwa:
1. Fluidity: The fluidity of thermoplastics inogona kazhinji kutsanangurwa kubva kune dzakatevedzana dze indices senge molecular weight, melt index, Archimedes spiral flow length, inooneka viscosity uye kuyerera reshiyo (process kureba / epurasitiki madziro ukobvu).analyze.
2. Crystallinity: Iyo inonzi crystallization phenomenon inoreva chiitiko chekuti mamorekuru epurasitiki anoshanduka kubva mukufamba kwakasununguka uye akavhiringidzika zvachose kuenda kumamorekuru anomira kusununguka uye anorongwa munzvimbo yakati wandei kuti agadzire modhi yekuratidzira mamorekuru kubva kune yakanyungudutswa. taura kune condensation.
3. Kunzwa kwekupisa: Kunzwa kwekupisa kunoreva kuti mamwe mapurasitiki anonyanya kunzwa kupisa.Kana nguva yekudziya yakareba pakupisa kwepamusoro kana kuti kuveura kwakakura, kutonhora kwezvinhu kunowedzera uye kunowanzoita ruvara uye kuora.Kana mapurasitiki anonzwa kupisa akaora, ne-zvakagadzirwa senge monomers, magasi, uye solids anogadzirwa.Kunyanya, mamwe magasi akaora anotsamwisa, anoparadza kana ane chepfu kumuviri wemunhu, midziyo, uye mold.
4. Easy hydrolysis: Kunyange kana mamwe mapurasitiki ane mvura shoma chete, anozoora pasi pekushisa kwepamusoro, kudzvinyirira kukuru, uye iyi pfuma inonzi nyore hydrolysis.Aya mapurasitiki (akadai sepolycarbonate) anofanira kunge akapisa uye akaomeswa
5. Kushungurudzika kuputika: Mamwe mapurasitiki anonzwa kunetseka, uye anowanzoita kushushikana kwemukati panguva yekuumbwa, iyo inoputika uye iri nyore kuputika, kana zvikamu zvepurasitiki zvinoputika pasi pechiito chekunze kwesimba kana solvent.Chiitiko ichi chinonzi stress cracking.
6. Melt fracture: Iyo polima inonyunguduka neimwe mwero wekuyerera inopfuura nepaburi remuromo patembiricha isingaperi.Kana chiyero chekuyerera chichipfuura humwe kukosha, pachena kutsemuka kwakatsemuka kunoitika panzvimbo yakanyunguduka, iyo inonzi melt fracture.Kana mwero wekunyungudika wasarudzwa Paunenge uchigadzira zvemhando yepamusoro zvepurasitiki, mhuno, mumhanyi, uye zviteshi zvekudyisa zvinofanirwa kukwidziridzwa kudzikisa kukurumidza kwejekiseni uye kudzvanywa, uye kuwedzera tembiricha yechinhu.
References
[1] Zhong Shuheng.Kuumbwa Kwemavara.Beijing: China Art Publishing House, 1994.
[2] Rwiyo Zhuoyi et al.Plastic raw materials uye additives.Beijing: Sainzi uye Tekinoroji Literature Publishing House, 2006.
[3] Wu Lifeng et al.Masterbatch User Manual.Beijing: Chemical Industry Press, 2011.
[4] Yu Wenjie et al.Plastic Additives uye Formulation Design Technology.3rd Edition.Beijing: Chemical Industry Press, 2010.
[5] Wu Lifeng.Plastic Coloring Formulation Design.2nd Edition.Beijing: Chemical Industry Press, 2009
Nguva yekutumira: Jun-18-2022