Nucleating tus neeg sawv cevyog tsim rau cov yas tsis tiav crystalline xws li polyethylene thiab polypropylene.Los ntawm kev hloov pauv tus cwj pwm crystallization ntawm cov resin, nws tuaj yeem ua kom cov crystallization ceev, ua kom cov crystallization ceev thiab txhawb cov miniaturization ntawm cov nplej loj, thiaj li ua kom luv lub voj voog molding, txhim kho pob tshab thiab nto ntawm cov khoom.Ib qho kev ua haujlwm tshiab ntxiv rau lub cev thiab cov khoom siv kho tshuab xws li gloss, tensile zog, rigidity, kub distortion kub, cuam tshuam tsis kam, thiab creep kuj.

Nucleating tus neeg sawv cevhais txog cov khoom siv tshuaj ntxiv uas tuaj yeem hloov pauv ib feem ntawm tus cwj pwm crystallization, txhim kho pob tshab, rigidity, nto gloss, cuam tshuam toughness thiab thermal deformation kub ntawm cov khoom, txo lub voj voog molding ntawm cov khoom, thiab txhim kho kev ua haujlwm thiab kev ua haujlwm ntawm cov khoom.

Covnucleating tus neeg sawv cevNws yog siv los ua tus pab hloov pauv ntawm cov polymer, thiab nws cov txheej txheem ntawm kev ua haujlwm feem ntau yog: nyob rau hauv lub xeev molten, txij li tus neeg sawv cev nucleating muab cov crystal nucleus uas yuav tsum tau, cov polymer hloov los ntawm thawj homogeneous nucleation mus rau heterogeneous nucleation, li no, crystallization. ceev yog nrawm, cov qauv nplej yog ua kom zoo dua qub, thiab nws muaj txiaj ntsig los txhim kho qhov nruj ntawm cov khoom, txo lub voj voog molding, tswj qhov seem stability ntawm cov khoom kawg, inhibit lub teeb tawg, txhim kho pob tshab thiab gloss ntawm lub cev thiab mechanical zog ntawm lub polymer.(xws li txhav, modulus), ua kom luv lub voj voog ua haujlwm, thiab lwm yam. Raws li cov chav kawm tseem ceeb ntawm cov neeg ua haujlwm nucleating, lub luag haujlwm tseem ceeb ntawm cov pob tshab yog los txhim kho cov nyhuv optical ntawm cov polymer.Kev tshawb nrhiav thiab kev tsim cov tshuaj nucleating hauv kuv lub tebchaws tau pib xyoo 1980s, thiab muaj ntau hom.Tam sim no cov tswv yim, pheej yig thiab kev lag luam nucleating cov neeg ua haujlwm tuaj yeem muab faib ua cov neeg ua haujlwm tsis muaj zog nucleating, organic nucleating agents thiab polymer nucleating agents..Tsis tas li ntawd, tus neeg sawv cev hloov pauv uas hloov pauv α-crystal daim ntawv hauv PP mus rau β-crystal daim ntawv feem ntau kuj tau faib ua tus neeg sawv cev nucleating.