Uruhare rwa MHEC mugutezimbere gushira

Methylhydroxyethylcellulose (MHEC) igira uruhare runini mugutezimbere uburinganire bwa putty, ibikoresho bikoreshwa cyane mubikorwa bitandukanye birimo ubwubatsi, amamodoka ninganda. Iyi ngingo itanga isesengura ryimbitse ryimiterere ya MHEC ningaruka zayo zikomeye mugutezimbere gushira hamwe. Irasobanura imiterere yimiti, imiterere yumubiri, hamwe nuburyo bwibikorwa bya MHEC muburyo bworoshye.

Putty nibikoresho bitandukanye bikoreshwa cyane mubwubatsi, gusana imodoka, gukora nizindi nganda zitandukanye. Guhuzagurika kwayo nikintu cyingenzi muguhitamo imikoreshereze ningirakamaro mubikorwa bitandukanye. Kugirango ugere kumurongo wifuzwa ushyira mugaciro bisaba gukemura ibibazo bitandukanye nko kugenzura ibishishwa, gukora no gufata neza. Methylhydroxyethylcellulose (MHEC) igaragara nkinyongera yingenzi yongerera cyane ihame rya putty mugihe izamura imikorere yayo.

1. Ibigize imiti nibintu bya MHEC

MHEC ni selile idasanzwe ya selile yabonetse kubwo guhindura imiti ya selile. Ihinduranya mugukora selile hamwe na okiside ya Ethylene na methyl chloride kugirango yinjize hydroxyethyl na methyl mumatsinda nyamukuru ya selile. Urwego rwo gusimbuza (DS) rwamatsinda ya hydroxyethyl na methyl bigira ingaruka zikomeye kumiterere ya MHEC, harimo kwikuramo, kwiyegeranya, hamwe nimyitwarire ya rheologiya.

Imiterere ya molekulire ya MHEC itanga imiterere yihariye, bigatuma iba nziza kubikorwa bitandukanye, harimo gushira. MHEC ifite amazi meza cyane kandi ikora igisubizo kiboneye kandi gihamye mugihe gikwirakwijwe mumazi. Ibi bisubizo biranga byorohereza no gukwirakwiza muri matrike ya putty, byemeza imikorere ihamye kuva mucyiciro kugeza kucyiciro.

MHEC itanga imyitwarire ya pseudoplastique ya rheologiya kubitekerezo byoroshye, bivuze ko ububobere bwayo bugabanuka hamwe no kongera umuvuduko wogosha. Uyu mutungo wa rheologiya wongerera imbaraga za putty, koroshya gushyira mubikorwa no gushiraho, mugihe ukomeje kwihanganira bihagije hamwe nimyitwarire ya thixotropique.

MHEC ifite imiterere myiza yo gukora firime, ifasha kunoza imbaraga zifatika hamwe no gufatira putty hejuru yubutaka. Ubushobozi bwayo bwo gukora firime butera inzitizi yo gukingira, kongera igihe kirekire no guhangana nikirere, bigatuma putty ikwiranye nibisabwa hanze.

2. Uburyo bwibikorwa bya MHEC muburyo bworoshye

Uruhare rwa MHEC mugutezimbere ubudahwema ni impande nyinshi kandi rurimo uburyo bwinshi bwibikorwa bigira ingaruka kumiterere n'imikorere.

Uburyo bumwe bwibanze ni hydrata no kubyimba molekile ya MHEC muburyo bushingiye kumazi. Iyo ikwirakwijwe mumazi, MHEC iminyururu ya hydrat, bigatuma habaho urusobe rwimikorere ya polymer muri matrike ya putty. Uru rusobe rutanga ubwiza bwimyitwarire hamwe nimyitwarire ya pseudoplastique, ituma itemba byoroshye mugihe cyogosha mugihe gikomeza imiterere ihamye hamwe.

MHEC ikora nkibyimbye byongera ubwiza bwicyiciro cyamazi muri formula ya putty. Imiterere ya hydrophilique ya MHEC itera gufata amazi, ikarinda guhumeka cyane no gukama kwa putty mugihe cyo kuyisaba. Ubu bushobozi bwo gufata amazi bwongerera igihe cyo gufungura, butanga umwanya uhagije wo gukora mbere yo gushiraho, kongera imiterere ihindagurika no kugabanya imyanda yibikoresho.

MHEC ikora nka binder na stabilisateur muburyo bworoshye. Mugukora hydrogene ihuza nibindi bice nkuzuza, pigment na polymers. Iyi mikoranire iteza imbere uburinganire no gukwirakwiza inyongeramusaruro muri matrike ya putty, bityo bikazamura imiterere yubukanishi, guhuza amabara nibikorwa rusange.

MHEC igira uruhare mu myitwarire ya thixotropique ya putty, bivuze ko igaragaza ububobere buke mu buruhukiro hamwe n'ubukonje buke munsi yo guhangayika. Uyu mutungo worohereza porogaramu yoroshye no gukwirakwiza putty mugihe wirinda kugabanuka cyangwa gusenyuka hejuru yubutumburuke. Imiterere ya thixotropique yimiterere irimo MHEC itanga ubwuzuzanye bwiza nuburinganire bwurwego rushyizweho, bityo bikazamura ubwiza nubuso bwuzuye.

3. Ibintu bigira ingaruka zihamye hamwe ninshingano za MHEC

Hariho ibintu byinshi bigira ingaruka kumyitozo ya putty, harimo ubwoko nubwiza bwibikoresho fatizo, ibipimo bya formula, uburyo bwo gutunganya nibidukikije. MHEC igira uruhare runini mugukemura ibyo bibazo no guhuza ibitekerezo kugirango ihuze ibisabwa byihariye.

Ikintu cyingenzi ningingo zingana no gukwirakwiza kuzuza na pigment muburyo bwo gushira. Ibice byiza bikunda kongera ubukonje na thixotropy, mugihe uduce duto duto dushobora kugabanya umuvuduko nuburinganire. MHEC ifasha gukemura ibyo bibazo iteza imbere gutatanya kimwe no guhagarika ibice biri muri matrike ya putty, ikareba ubwiza bwimyitwarire nimyitwarire ya rheologiya.

Ibipimo no guhuza ibice bitandukanye muburyo bwa putty nabyo bigira ingaruka kumikorere no mubikorwa bya putty. MHEC ikora nka modifilizer hamwe na rheologiya ihindura, iteza imbere guhuza inyongeramusaruro zitandukanye nka resin, plasitike hamwe nabahindura imvugo. Imiterere yacyo itandukanye ituma abayikora bahuza kandi bagahuza neza imiterere ya rheologiya ya rheologiya kubisabwa byihariye.

Gutunganya ibipimo nko kuvanga umuvuduko, ubushyuhe, nigipimo cyogosha birashobora kugira ingaruka no gutatana no gukorana kwa MHEC muburyo bworoshye. Kunonosora ibipimo byerekana neza no gukora neza ya molekile ya MHEC, bikagabanya cyane kubyimbye, gutuza, no guhuza ingaruka.

Byongeye kandi, ibidukikije nkubushuhe, ubushyuhe hamwe nubutaka bwubutaka burashobora kandi kugira ingaruka kubikorwa no gukiza imyitwarire ya putty. MHEC yongerera imbaraga amazi no gufata neza ya putty, bigatuma ikwiranye n’ibidukikije bitandukanye n’ibikoresho byo munsi.

4. Ubuhanga bwo gukoresha no gutekereza kuri dosiye

Gukoresha neza MHEC muburyo bworoshye bisaba gutekereza cyane kubuhanga bwo gukoresha hamwe nurwego rwa dosiye kugirango ugere kubyo wifuza kandi biranga imikorere. Kuvanga neza, gusaba no gukiza birakenewe kugirango habeho gukwirakwiza no gukora MHEC muri matrise ya putty.

Mugihe cyiterambere, ni ngombwa kumenya urugero rwiza rwa MHEC rushingiye kubikorwa byihariye bisabwa nko kuba viscosity, sag resistance, hamwe nigihe cyo kumisha. Ingano ya MHEC yakoreshejwe irashobora gutandukana bitewe nubwoko bwa putty, uburyo bwo gusaba, imiterere yubutaka nibidukikije.

Ukurikije imiterere ya substrate, icyifuzo cyo kurangiza kurangiza hamwe nibisabwa byumushinga, tekiniki zitandukanye zubwubatsi zirashobora gukoreshwa, harimo gukubita intoki, gutera no gusohora. Ibicuruzwa byuzuye birimo MHEC byerekana guhuza neza nuburyo butandukanye bwo gukoresha, butuma ibintu byinshi bihinduka mugukoresha.