Nigute ethers ya selile ikora nkibibyibushye muri coatings?

Ethers ya selile ikoreshwa cyane mubitambaro nkibibyimbye bitewe nimiterere yihariye n'imikorere. Zongera ubwiza bwimyenda, zitanga uburyo bwiza bwo gusaba no gukora-ibicuruzwa byanyuma. Gusobanukirwa imikorere yabo nkibibyimbye bisaba gucengera mumiterere ya molekuline, imikoranire yumuti hamwe nibindi bice mubitwikiriye, hamwe ningaruka zabyo kuri rheologiya no gushiraho film.

 

1. Imiterere ya molekulari:

Ether ya selile ikomoka kuri selile, isanzwe iba polymer iboneka murukuta rwibimera. Binyuze mu guhindura imiti, nka etherification, hydroxypropylation, cyangwa carboxymethylation, ethers ya selile. Ihinduka ryinjiza amatsinda yimikorere kumugongo wa selile, uhindura imbaraga zayo hamwe nimikoranire hamwe na solve.

 

2. Gukemura no kubyimba:

Ethers ya selile ifite urwego rutandukanye rwo gukemuka mumazi no mumashanyarazi, bitewe n'ubwoko hamwe nurwego rwo gusimburwa. Muburyo bwo gutwikira, selile ya selile mubisanzwe yabyimbye muri sisitemu ishingiye kumazi, ikora ibisubizo biboneye cyangwa geles. Iyi myitwarire yo kubyimba igira uruhare mukubyimba kwabo, nkuko iminyururu ya polymer yabyimbye ifatanye kandi ikabuza gutembera kwumuti.

3. Guhuza Hydrogen:

Guhuza hydrogène bigira uruhare runini mu mikoranire ya ethers ya selile na molekile zamazi cyangwa ibindi bice bigize coatings. Amatsinda ya hydroxyl aboneka muri ether ya selile arashobora gukora hydrogène hamwe na molekile zamazi, bigatera gukira no kubyimba. Byongeye kandi, guhuza hydrogène byoroshya imikoranire hagati ya ethers ya selile nizindi polymers cyangwa uduce duto duto duto, bigira ingaruka kumiterere.

4. Guhindura imvugo:

Ether ya selile ikora nkibibyibushye muguhindura imiterere ya rheologiya yimyenda. Batanga imyitwarire yo kogosha, bivuze ko ubukonje bugabanuka mugihe cyogosha mugihe cyo kubisaba ariko bigakira nyuma yo guhagarika umutima. Uyu mutungo worohereza koroshya porogaramu mugihe utanga ubukonje buhagije kugirango wirinde kugabanuka cyangwa gutonyanga.

5. Imiterere ya firime no guhagarara:

Mugihe cyo kumisha no gukiza, ethers ya selile igira uruhare mugukora firime imwe kandi ihamye. Mugihe ibishishwa bigenda byuka, molekile ya selile ya ether irahuza kandi igahuza kugirango ikore imiterere ya firime. Iyi firime itanga imbaraga zubukanishi, kwizirika kuri substrate, no kurwanya ibintu bidukikije nkubushuhe nubutaka.

6. Guhuza no Gukorana:

Ether ya selile yerekana guhuza hamwe nibintu byinshi byo gutwikira, harimo binders, pigment, ninyongera. Barashobora guhuza hamwe nibindi bibyibushye cyangwa abahindura rheologiya, bakazamura imikorere yabo muburyo bwo gutwikira. Mugutezimbere guhitamo no guhuza selile ya selile hamwe nibindi byongeweho, abayikora barashobora kugera kumiterere ya rheologiya bifuza nibiranga imikorere.

7. Ibitekerezo no kubungabunga ibidukikije:

Ether ya selulose itoneshwa muburyo bwo gutwikira bitewe nubuzima bwibinyabuzima, isoko ishobora kuvugururwa, no kubahiriza ibisabwa n'amategeko agenga umutekano w’ibidukikije n’ubuzima. Mugihe abaguzi ninzego zishinzwe kugenzura ibintu bisaba cyane ibicuruzwa birambye kandi byangiza ibidukikije, ikoreshwa rya selile ya selile rihuza niyi ntego.

ether ya selile ikora nkibibyibushye mu gutwika hifashishijwe imiterere ya molekile, ibiranga solubile, imikoranire yumuti nibindi bice, guhindura imvugo, imiterere ya firime, guhuza, hamwe nibidukikije. Imiterere yabo itandukanye kandi ikora cyane ituma inyongeramusaruro zingirakamaro muburyo bwo gutwikira, bigira uruhare mu kunoza imikorere, ubwiza, no kuramba.


Igihe cyo kohereza: Jun-12-2024