CAS: 27360-07-2|POLY (VINYL BUTYRAL)

Taw qhia ntawm CAS: 27360-07-2|POLY (VINYL BUTYRAL)

Poly (vinyl butyral) (PVB) yog ib qho hluavtaws polymer muab los ntawm polyvinyl cawv thiab butyraldehyde. Nws muaj ntau yam kev siv hauv ntau yam, suav nrog tsheb, kev tsim kho, thiab ntim khoom lag luam. PVB paub txog nws cov khoom siv kho qhov muag, kho qhov muag, thiab cov nplaum nplaum, ua rau nws yog cov khoom siv nrov hauv laminated kev nyab xeeb iav, hnub ci hlwb, thiab txheej txheej.

Ceramic adhesives, toners, wood coatings, composite fiber adhesives, structural adhesives thiab interlayers rau iav kev nyab xeeb.

Specification of CAS: 27360-07-2|POLY (VINYL BUTYRAL)

Kev Tshawb Fawb Daim Ntawv Thov CAS: 27360-07-2|POLY (VINYL BUTYRAL)

Grafting thiab Molecular Structure

Poly (vinyl butyral) (PVB), cov ntaub ntawv pov thawj terpolymer, ua lub luag haujlwm tseem ceeb hauv iav kev nyab xeeb, tshwj xeeb hauv kev siv tsheb thiab kev tsim vaj tsev. Kev tshawb fawb los ntawm Striegel (2004) tshawb txog 'self-grafting' lossis 'auto-grafting' teebmeem hauv PVB. Txoj kev tshawb no txhawb kom nkag siab txog cov qauv molecular ntawm PVB, tshwj xeeb tshaj yog li cas induced branching cuam tshuam rau PVB-graft-PVB molecule, uas yog ib qho tseem ceeb rau nws daim ntawv thov nyob rau hauv kev ruaj ntseg iav.

Kev nyab xeeb glazing thiab hluav taws xob rwb thaiv tsev

PVB feem ntau yog siv los ua ib qho interlayer hauv kev ruaj ntseg glazing rau tsheb thiab cov tsev, vim nws cov tawv tawv, tawv tawv, thiab qhov muag pom tseeb. Raws li tau hais tseg los ntawm Knapczyk (2000), PVB lub siab adhesion zog thiab muaj peev xwm los khi pigments thiab fillers ua rau nws haum rau cov ntawv thov no. Tsis tas li ntawd, PVB yog ua hauj lwm nyob rau hauv coatings rau hluav taws xob xaim thiab cable rwb thaiv tsev, leveraging nws tshwj xeeb tshuaj thiab lub cev yam ntxwv.

Domain Structure Analysis

Lub amorphous xwm ntawm PVB, tus cwj pwm los ntawm kev sib cais microphase, qhia txog tus qauv sib txawv. Zheng et al. (1988) tau ua ib txoj kev tshawb fawb morphological ntawm PVB zaj duab xis, siv kev sib kis ntawm electron microscopy los soj ntsuam cov npe hauv cov polymer. Qhov kev tshawb fawb no muab kev nkag siab rau hauv cov qauv ntawm PVB, uas yog qhov tseem ceeb rau nws cov kev siv ntau yam.

Impact Modification and Processing Aid

PVB, muaj nyob rau hauv daim ntawv pellet rau kev sib xyaw nrog lwm cov polymer resins, ua raws li kev hloov pauv thiab kev pab cuam. Hofmann & Lee (2006) qhia tau hais tias PVB txhim kho toughness, yooj, thiab kev ua tau zoo nyob rau hauv ntau yam engineering resins, polyolefins, thiab PVC. Tnws versatility underlines PVB qhov tseem ceeb hauv cov khoom siv engineering thiab kev tsim khoom.

Polymer Synthesis Intensification

Cov txheej txheem synthesis ntawm PVB tau siv zog siv cov tshuaj microstructured tshiab, raws li qhia los ntawm Lin li al. (2015). Txoj hauv kev no ua rau muaj cov tshuaj tiv thaiv sai dua thiab muaj txiaj ntsig zoo ntawm PVB, qhia txog kev nce qib hauv cov thev naus laus zis polymer.

Hydrogen Bonding Management hauv kev daws teeb meem

Tswj hydrogen bonding hauv aqueous poly (vinyl cawv) cov kev daws teeb meem muaj cov kev xav tshiab rau kev npaj homogeneous PVB. Rumyantsev et al. (2020) tshawb nrhiav seb hydrogen bond reorganization cuam tshuam li cas rau kev sib txuas ntawm PVB, cuam tshuam rau nws qhov hnyav molecular faib thiab homogeneity.

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