Ifu ikuramo ifu ya latex nigikoresho gikunze gukoreshwa gusa. Ni ifu yabonetse mugukama kubyuka elulmer polymer hamwe na polyvinyl inzoga nkumurinzi urinda. Iyi ifu irashobora kongera gutatana mumazi angana nyuma yo guhura namazi. , gushiraho emulsion. Kwiyongera kw'ifu ya polymer idahakana irashobora kunoza imikorere yo kugumana amazi ya chament, kimwe no guhuza imigabane, guhinduka, kudatungurwa no kurwanya ruswa ya minisiteri ikomeye. Ibikurikira bitangiza uburyo bw'ifu yoroshye muri siyoma zidasanzwe muri simuke kandi igira uruhare mu mikorere ya sima.
Ingaruka kuri sima hydration inzira na paste
Igihe cyose ibintu bishingiye ku byaro byongewe hamwe n'ifu ya latex isaba amazi, igisubizo cya Hydroxide gitangira, kandi icyarimwe, kandi icyarimwe, kandi icyarimwe, kandi icyarimwe, kandi icyarimwe, kandi icyarimwe, kandi icyarimwe, kandi icyarimwe, kandi icyarimwe, urugero rwa nyabukwa na HYDNTST na HYLITATION CALSION YASHYIZWE MU BIKORWA BYA CEL na Simansi ya sima idahwitse. Hamwe niterambere ryimiterere ya hydration, ibicuruzwa byikurya byiyongereye, kandi ibice bya polymer biteranya buhoro buhoro muri capillary kandi bigakora urwego rupakijwe hejuru ya gel hamwe na sima idahwitse. Ibice bya polymer bihuje buhoro buhoro byuzuza ubumwe bwa capillary, ariko ntibishobora kuzuza byuzuye imbere yimbeba. Mugihe hydration cyangwa gukama bigabanya ubushuhe, uduce twa polymer twuzuyemo cyane kuri gel no mubisanzure bifatanije na sima zivanze hamwe na sima zivanze hamwe no kunyereza imiyoboro ya hydration yo gukumira. Kuberako ibicuruzwa bya hydration hamwe na polymer ikora urwego rutwikiriye umurongo, birashobora kugira ingaruka kumikurire ya ettrcium hydroxide ya kristu ya kristu na kristu yaka; Kandi kuberako polymer iterana muri firime muri pores ya zone yinzibacyuho ya Interface, ituma ibikoresho bya siyoka bishingiye kuri polymer Amatsinda akomeye muri molekile zimwe za polemer izagira kandi guhuza na ca2 +, A13 +, nibindi bicuruzwa byimiterere yimyanda, biteza imbere imiterere yumubiri yumubiri wa sima, kugabanya imihangayiko yimbere. Nkuko imiterere ya sima ikura, amazi arashize kandi uduce twa polymer bigarukira muri capillary pores. Hamwe no kumenyekana kwa sima, amazi muri capillary a igabanya, kandi uduce twa polymer dutera hejuru ya sima ya gel / kunyuranya na sima ikabije hamwe nimbero nini yuzuye cyangwa kwifata neza.
Uruhare rwifu ya polymer idahwitse muri minisiteri iyobowe nibikorwa byombi bya sima hydration hydration na firime ya polymer. Imiterere ya sisitemu ihuriweho na sima hydration na firime ya polymer bigerwaho muri intambwe 4:
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(3) ibice bya polymer bigize urwego rukomeza kandi rukomeye;
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Gutandukanya kwigana ifu ya polymer polymer irashobora gukora firime-idahuye na film (umuyoboro wa polymer) nyuma yo gukama, kandi iyi miyoboro yo hasi ya elastike ya elastike irashobora kunoza imikorere ya sima; Amatsinda amwe ya silar ya sima asubiza imbonankubone hamwe na sima yamashanyarazi kugirango akore ikiraro kidasanzwe, kigutezimbere imiterere yibicuruzwa byimiterere ya sima, no kugabanya kandi bigabanya ibisekuru bya crack. Nyuma yifu yongeye kuvugurura polymer yongeyeho, igipimo cyambere cyamashanyarazi cya sima cyatinze, kandi filime ya polymer irashobora kuzingira neza ibice, kugirango sima ishoboke kandi imitungo yayo itandukanye irashobora kunozwa.
Ingaruka ku mbaraga z'ibikoresho bya sima
Amapfa kandi adahitanye polymer polymer arashobora gukora imbaraga zikaze nimbaraga kubibazo bitandukanye nyuma yo gushiraho firime. Bahujwe na sindar binder binder binder nkiyideri ya kabiri muri minisiteri. Sima na polymer batanga cyane ubushuhe bujyanye, kugirango imikorere ya minisiteri ishobora kunozwa. Mugukurikirana microst yibikoresho bya polymer-sima, bizera ko byongeweho ifu ya polymer ishobora kuvugwa muri firime ya polymer hanyuma ikaba igice cyurukuta rwa pore. Guteranya imbaraga, bityo byongera guhangayikishwa na minisiteri no kongera ibintu bihebuje. Imikorere miremare yifu ya polymer polymer muri minisiteri yizwe. Yagaragaye na Sem ko nyuma yimyaka 10, amikoro na morfilogiya ya polymer muri minisiteri ntiyari ahindutse, abungabunge inanga ihamye, yo kurwanya ibintu byoroshye. imbaraga na hydrophomibity. Wang Ziming et al. [11] Twize uburyo bwo gushinga ifu ya latex ku mbaraga z'akanisho, maze dusanga nyuma yo gukama, muri colymer yongeraho ibinyabuzima ndetse no mu kiganza kimwe, bigira uruhare mu kuboko kwa minisiteri kandi bigira ingaruka ku miterere n'inkunga y'ubutaka, hanyuma mu gihe hashyizweho Inzira, polymer nayo igira uruhare munzira yo gukumira no kugabanya ingwate muri binder. Ingaruka nziza, byose bizagira ubufasha bwiza bwo kuzamura imbaraga.
Ongeraho ifu ya latex kuri minisiteri irashobora kunoza imbaraga zibindi bikoresho, kuko ifu ya hydrophilic hamwe nicyiciro cya sydrophilic cyinjira muri pore na capillaries ya matrix hamwe, kandi ifu ya latex yinjira muri pore na capillaries. Filime y'imbere irashirwaho kandi igashizwe mu buryo bushimwe hejuru ya substrate, bityo ikemeza imbaraga nziza hagati y'ibikoresho bifatika hamwe na substrate.
Guhitamo imikorere yakazi ya minisiteri na latex powder ni uko ifu ya latex ari polymer nyinshi polymer ifite amatsinda ya polar. Iyo ifu ya lapx ivanze hamwe nibice bya ePS, ibice bitarimo inkoko mumurongo wa polymer wifu ya latex ni adsorpription yumubiri izabaho hejuru ya ePR. Amatsinda ya Polar muri Polymer yerekeje hanze hejuru ya ePS ibice, kugirango ibipimo bya ePS bihinduke kuva hydrophilitike kuri hydrophiliti. Kureremba, ikibazo cya minisiteri nini yo guteka. Muri iki gihe, yongeraho sima no kuvanga, imitwe ya polar yahishe hejuru ya ePS isabana nimikorere no guhuza neza, kugirango umurimo ukore neza minisiteri neza. Ibi bigaragarira mu kuba ibice bya ePS byibasiwe byoroshye na sima yoroheje, kandi imbaraga zishinzwe umutekano hagati yombi ziratezimbere cyane.
Ingaruka kuri Guhinduka kw'ibikoresho bishingiye kuri sima
Ifu yoroheje ya latex irashobora kunoza imbaraga zoroheje, imbaraga zimbaraga hamwe nibindi bintu bya minisiteri kuko bishobora gukora firime ya polymer hejuru yubutaka bwa minisiteri. Hano hari deice hejuru ya firime, kandi ubuso bwimbuto bwuzuye kuri minisiteri, kugirango ibitekerezo byo guhangayika bigabanuka. Kandi munsi y'ibikorwa byimbaraga zo hanze bizatanga umusaruro utagerwaho. Byongeye kandi, minisiteri ikora skeleton Rigid nyuma yuko sima imeze, kandi polymer muri skeleton ifite imikorere yingingo yimukanwa, bisa na tissue yumubiri wumuntu. Filime yakozwe na Polymer irashobora kugereranywa ningingo n'amagambo, bityo akanga neza kandi bikomeye.
Muri siyoli yahinduwe kubutaka bwa mirisiteri, firime ya polymer ikomeza kandi yuzuye hamwe na sima yakatiye na sima, bigatuma denseri ya minisiteri muri rusange, kandi icyarimwe yuzuza capillaries hamwe numwenda. Kubwibyo, filime ya polymer irashobora kohereza neza igitutu nigituba. Filime ya Polymer irashobora guca imbogamizi kumyanya ya Polymer-mirtar, kora agace k'agabanuka gukira, kandi utezimbere imyambaro n'imbaraga zo guhangana na minisiteri. Kubaho kwa Polymefike byoroshye cyane kandi byoroshye cyane biteza imbere guhinduka no kwikuramo minisiteri, bitanga imyitwarire idahwitse kandi ifite imbaraga kuri skeleton. Iyo imbaraga zo hanze zikoreshwa, inzira yo gukwirakwiza itinze itinda kubera gutera imbere muburyo bwo guhinduka no guturika kugeza igihe kinini bigerwaho. Ikirangantego cya Aswoven na Dolymer nacyo kigira uruhare mu kubuza guhuza microckacks mumirongo. Kubwibyo, ifu ya polymer idahimbye yongera imihangayiko yo gutsindwa no gutsindwa kwanduza ibikoresho.
Ingaruka ku Kuramba kw'ibikoresho bya sima
Imiterere ya Filime zihoraho ningirakamaro cyane kumitungo ya sima yahinduwe na feri ya minisiteri. Mugihe cyo gushyiraho nuburyo bukomeye bwa sima Paste, imyembe nyinshi zizavari imbere, zikaba ibice bidakomeye bya sima. Nyuma yifu yongeye kuvugurura polymer yongeyeho, ifu ya polymer ihita abatatana mumazi yo guhura namazi, kandi akusanya ahantu hakungahaza amazi (ni ukuvuga mu cyuho). Nkuko sima ya paste na almedans, kugenda kwa polymer birababujijwe kurushaho, kandi amakimbirane yububabare hagati yamazi numwuka bitera guhuza buhoro buhoro hamwe. Iyo uduce twa polymer tutangirira kuvugana, amazi mumurongo arenga kuri capillaries, kandi polymer ikora film ikomeza hirya no hino mu cyuho, gushimangira ibyo bintu bidakomeye. Muri iki gihe, filime ya Polymer ntishobora gusa gukina hydrophobike gusa, ariko nayo ntabwo izahagarika capillary, kugirango ibikoresho bigire hydrophobitity hamwe nijuru.
CEVER MONIRIT ONTYongeyeho Polymer irahujwe cyane. Ibinyuranye nibyo, Polymer yahinduye minisiteri ituma umuryango wose uhuze cyane kubera kubaho kwa firime ya polymer, bityo ukabona imitungo myiza nubucakara. igitsina. Muri cintle yatinze ifu ya centy ifu ya minisiteri, ifu ya latex izongera uburozi bwa sima, ariko igabanya uburozi bwa claceri yinzibacyuho hagati ya sima ya paste hamwe noguteranya, kugirango uburozi bwa minisiteri buhindutse. Nyuma yifu ya landx yashizweho muri firime, inzabya muri minisiteri irashobora guhagarikwa neza, kugirango imiterere yinzizeko ihindurwe, nubushobozi bwo kurwanya ifu ya nyakwigendera biratera imbere, nubushobozi bwo kurwanya ifu ya nyakwigendera biratera imbere, nubushobozi bwo kurwanya ingufu za sima, nubushobozi bwo kurwanya isuri yibitangazamakuru byangiza byongerewe. Ifite ingaruka nziza kugutezimbere kuramba.
Kugeza ubu, ifu ya polymer idahitanye ifite uruhare runini nko kongeraho kuri minisiteri yubwubatsi. Ongeraho ifu ya latex kuri minisiteri irashobora gutegura ibicuruzwa bitandukanye byimiryango nka tile abiziritse, ubushyuhe bwimiterere, pertar, ikodesha, ibikoresho byishimo, gusana mortar, gusana ibikoresho byinzangano. Gusaba no gusaba imikorere ya minisiteri. Birumvikana ko hari ibibazo byo guhuza n'imihindagurikire y'imari ya polymer bidahimbye na sima, bikubiyemo kandi bikubiyemo, bigomba kwitabwaho bihagije mubyiciro byihariye.
Igihe cyagenwe: Feb-20-2025