Ubwoko bwamavuta ya Silicone kubafasha

Kubera imikorere myiza yimiterere ya organicamavuta ya silicone, ikoreshwa cyane mumyenda yoroshye yo kurangiza.Ubwoko bwacyo nyamukuru ni: igisekuru cya mbere hydroxyl silicone yamavuta hamwe na hydrogène silicone yamavuta, igisekuru cya kabiri amavuta ya silicone, kugeza kubisekuru bya gatatu amavuta menshi ya silicone.Nkuko abantu bakeneye gufata neza, amavuta ya silicone kama amaze imyaka mirongo atera imbere.

1.Hidroxyl amavuta ya silicone

Imiterere nyamukuru yamavuta ya hydroxyl silicone numurongo wa polymer hamwe nitsinda rya hydroxyl kumpande zombi na silika silicon nkumunyururu nyamukuru.Uburyo busanzwe bwa synthesis nuburyo bukorwa na hydrolyzing polycondensation ya dimethyl dichlorosilane.Kubera imbaraga nkeya zubutaka, polarite nkeya hamwe na adsorption idakomeye hejuru yubutaka, gukoresha bisanzwe amavuta ya hydroxyl silicone bisaba uburemere buke bwa molekile kugirango bigire ingaruka nziza yo gukoresha.Kubwibyo, muri rusange amavuta ya hydroxyl silicone akoreshwa nkurangizakoroshyani polymer ifite uburemere buke.Haje imbogamizi ko nkamavuta ya silicone, kubera ingufu zubutaka buke hamwe no gukwirakwiza amazi mabi cyane, umubare munini wa emulisiferi hamwe nimashini yogosha kandi ikwirakwiza ikwirakwizwa cyane irakenewe kugirango emulisile kandi ikwirakwizwa muri mikorobe nziza.Ariko nubwo bimeze bityo, gusaza kwayo biracyari bibi.Hazakomeza kubaho emulion stratifisme nyuma yigihe kinini gishyizwe.

2. Amavuta ya silicone ya hydrogène

Imiterere nyamukuru yamavuta ya hydrogène silicone ni polysiloxane ifitanye isano na silicon-hydrogen ihuza neza mugice cyuruhande rwumunyururu wa ogisijeni wa silicon.Uburyo busanzwe bwa synthesis burimo hydrolytike polycondensation ya methyl hydrodichlorosilane hamwe no gufungura polymerisation yimibiri yimpeta ya hydrosiloxane.Kuberako ituze rya silicon-hydrogène idahwitse, biroroshye dehydrogenate bityo biroroshye adsorb hamwe nitsinda rya polar kubikoresho byimyenda.Ifite rero imitungo myiza ya adsorptive.Ifite imikorere myiza ya fibre ya selile na proteine ​​fibre, mugihe ingaruka mbi kuri fibre chimique.Kimwe na hydroxyl silicone yamavuta, imikorere ya emulisitiya ntabwo ari nziza kandi ituze ni mibi.Niba ibirimo hydrogène ari byinshi cyane mugihe cyo kubishyira mu bikorwa, biroroshye kuganisha kuri hydrogène ya hydrogène ikabije ni ndende cyane, bikaba byangiza ibidukikije byubushyuhe bwo hejuru mugihe washyizeho.

3.Amavuta ya silicone

Imiterere nyamukuru yaamavuta ya silicone isa polysiloxane irimo amino amatsinda kumpande nyuma ya polymerisation wongeyeho amino silane ihuza.Ubworoherane nogukwirakwiza amazi ya polysiloxane byateye imbere cyane kubera adsorption nziza nubushobozi bwo guhuza amatsinda ya amino kumyenda hamwe na polarite nziza.Cyane cyane kumyenda ya fibre ya selile, ifite ingaruka nziza cyane zo gukoresha.Muguhindura agaciro ka ammonia, ubwoko bwa amino silane ihuza hamwe nuburemere bwa molekile yamavuta ya silicone irashobora guhinduka.Ibyo birashobora gutegura ingaruka nziza zo gusaba.Nyamara, kubera ko urunigi rwarwo rukiri imiterere ya siloxane, bityo ikenera imiti myinshi kugirango igere ku ngaruka nziza.Igihe kimwe, kubera ko ibikorwa bya amino byamavuta ya amino silicone ari menshi kandi nanone biri kumagufa kuruhande.Biragoye rero kuyikura mumyenda nyuma ya adsorption.Ibyo bizagorana kuyikuramo muburyo bwo gusiga irangi no kurangiza mugihe bikenewe guhindura ibara, kurandura iminkanyari cyangwa ibibara bya silicone.Na none kurwanya amazi akomeye cyangwa amazi ya alkali ya emulion yayo byombi birakomeye.

4.Hagarika amavuta ya silicone

Imiterere nyamukuru yo guhagarika amavuta ya silicone nuko mumurongo wingenzi wa polysiloxane yashyizwemo, igahimbwa kandi igahindura polymer hamwe na hydrophilique polyether igice cyurunigi.Muburyo bwo guhagarika, guhimba no gukora polymer hamwe nigice cyumunyururu wa amino, bitezimbere imikorere ya hydrophilique no kwigana umutungo wa siloxane.Muguhindura igipimo, ubwoko nuburemere bwa molekuline yibice bitatu byurunigi, harashobora gutegura ibicuruzwa byinshi.Kuburyo bwiza bwa hydrophilique, birakwiriye cyane ko koroshya kurangiza kuri fibre chimique, hamwe nibikorwa byiza byo guhindura ibara no kuyikuraho.Kuberako amatsinda ya amino ari ammonia, ammonia ya gatatu ndetse na ammonia ya kane, ntabwo byoroshye kumuhondo.Na none niyoroshya ikunzwe mubushakashatsi bwo guhindura muri iki gihe.

 

Amavuta meza ya Silicone Amavuta meza - 98082 yoroshye ya Silicone (Yoroheje & Smooth) - Inganda nudushya |Udushya (imyenda-chem.com)