Kuki silicone y'amazi ishobora gukoreshwa cyane mubice bitandukanye?

1.Kwinjiza reberi ya silicone yamazi hamwe no kubumba

reberi y'amazi ya silicone yongeyeho ibumba igizwe na vinyl polysiloxane nka polymer shingiro, polysiloxane hamwe na Si-H nkumukozi uhuza umusaraba, imbere ya catalizator ya platine, mubushyuhe bwicyumba cyangwa gushyushya munsi yumusaraba uhuza ibirunga byicyiciro cya silicone ibikoresho. Bitandukanye na rebero ya silicone yuzuye, gushushanya uburyo bwa silicone yamashanyarazi ntibishobora kubyara ibicuruzwa, kugabanuka guto, guturika kwimbitse kandi nta kwangirika kwibikoresho. Ifite ibyiza byubushyuhe bwagutse, imiti irwanya imiti kandi irwanya ikirere, kandi irashobora kwizirika ku buryo butandukanye. Kubwibyo, ugereranije na silicone yuzuye ya silicone, iterambere ryibumba rya silicone ryihuta. Kugeza ubu, yagiye ikoreshwa cyane mu bikoresho bya elegitoroniki, imashini, ubwubatsi, ubuvuzi, imodoka ndetse n’izindi nzego.

2.Ibice byinshi

Base Polymer

Imirongo ibiri ikurikira ya polysiloxane irimo vinyl ikoreshwa nka polymers fatizo kugirango hongerwemo silicone y'amazi. Ikwirakwizwa ryibiro bya molekile ni binini, muri rusange kuva ku bihumbi kugeza 100.000-200.000. Byakoreshejwe cyane polymer yibanze ya silicone yongeweho ni α, ω -divinylpolydimethylsiloxane. Byagaragaye ko uburemere bwa molekuline hamwe na vinyl biri muri polymers shingiro bishobora guhindura imiterere ya silicone y'amazi.

umukozi uhuza

Ibikoresho byuzuzanya bikoreshwa mugushyiramo silicone yibumba ni polysiloxane kama irimo imigozi irenga 3 ya Si-H muri molekile, nka methyl-hydropolysiloxane irimo umurongo wa Si-H, impeta methyl-hydropolysiloxane na MQ resin irimo itsinda rya Si-H. Bikunze gukoreshwa cyane ni methylhydropolysiloxane kumurongo ukurikira. Byagaragaye ko imiterere yubukorikori bwa silika gel ishobora guhinduka muguhindura ibirimo hydrogène cyangwa imiterere yumusaraba uhuza. Yasanze ibirimo hydrogène yibikoresho byambukiranya bigereranywa nimbaraga zikaze hamwe nubukomezi bwa silika gel. Gu Zhuojiang n'abandi. yabonye hydrogène irimo amavuta ya silicone ifite imiterere itandukanye, uburemere bwa molekile zitandukanye hamwe nibirimo hydrogène bitandukanye muguhindura inzira ya synthesis hamwe na formulaire, hanyuma ayikoresha nka agent ihuza guhuza no kongeramo silicone.

catiseri

Mu rwego rwo kunoza imikorere ya catalitiki ya catalizator, hateguwe platine-vinyl siloxane, inganda za platine-alkyne hamwe na azote yahinduwe na azote. Usibye ubwoko bwa catalizator, ubwinshi bwibicuruzwa bya silicone nabyo bizagira ingaruka kumikorere. Yasanze kongera ingufu za catalizike ya platine bishobora guteza imbere guhuza imiyoboro hagati ya methyl no kubuza kwangirika kwurunigi nyamukuru.

Nkuko byavuzwe haruguru, uburyo bwa volcanisation ya silicone yongeweho ya gakondo ni reaction ya hydrosilylation hagati ya polymer fatizo irimo vinyl na polymer irimo hydrosilylation. Ibicuruzwa bisanzwe byamazi ya silicone yongeweho mubisanzwe bisaba kubumba gukomeye kugirango bikore ibicuruzwa byanyuma, ariko ubu buhanga gakondo bwo gukora bufite ibibi byigiciro kinini, igihe kirekire, nibindi. Ibicuruzwa akenshi ntibikoreshwa mubicuruzwa bya elegitoroniki. Abashakashatsi basanze urukurikirane rwa silika rufite imiterere isumba izindi zishobora gutegurwa nubuhanga bwo gukiza udushya ukoresheje mercaptan - inshuro ebyiri zongewemo na silika. Ibikoresho byiza byubukanishi, ituze ryumuriro hamwe nogukwirakwiza urumuri birashobora gutuma bikoreshwa mubindi bice bishya. Hashingiwe ku mikorere ya mercapto-ene hagati ya shami ya mercaptan ishami rya polysiloxane ikora na vinyl yarangije polysiloxane ifite uburemere butandukanye bwa molekile, elastomeri ya silicone ifite ubukana bworoshye hamwe nubukanishi. Elastomers yacapishijwe yerekana icapiro ryinshi hamwe nibikoresho byiza bya mashini. Kurambura igihe cyo kumeneka kwa silicone elastomers birashobora kugera kuri 1400%, ibyo bikaba birenze cyane ibyavuzwe na UV ikiza elastomers ndetse ikaba irenze no kurambura cyane ubushyuhe bwa silicone elastomers. Hanyuma ultra-kurambura silicone elastomers yashyizwe kuri hydrogels ikozwe hamwe na karubone nanotube kugirango itegure ibikoresho bya elegitoroniki birambuye. Silicone ishobora gucapurwa kandi ishobora gutunganywa ifite uburyo bwagutse bwo gukoresha muri robo zoroshye, imashini zoroha, gushiramo imiti nizindi nzego.