Umgaqo wokutshintsha umbala wee-pigments ezibuyiselwayo ze-thermochromic kwiikomityi

Umgaqo wokutshintsha umbala kunye nokwakheka kwee-pigments ezibuyiselwayo ze-thermochromic:

I-pigment ye-Thermochromic luhlobo lwee-microcapsules ezitshintsha umbala ngokuphindaphindiweyo ngokunyuka kobushushu okanye ukuwa.

I-pigment ye-thermochromic ebuyiselwayo ilungiswa ukusuka kuhlobo lokudluliselwa kwe-electron uhlobo lwe-organic compound system.I-Electron transfer type organic compound luhlobo lwenkqubo ye-organic coloring ene-chemical structure.Kwiqondo lokushisa elithile, i-molecular structure ye-organic substance iyatshintsha ngenxa yokudluliselwa kwe-electron, ngaloo ndlela iqonda utshintsho lombala.Le nto yokutshintsha umbala ayikhanyisi nje kuphela umbala, kodwa iyakwazi ukuqonda utshintsho lombala ukusuka kwimeko "yemibala === engenambala" kunye "nombala === enemibala".Luhlobo lwetyuwa olunzima lwentsimbi enzima kunye nohlobo lwekristale elulwelo olutshintshayo lobushushu Into engenalo.

I-microencapsulated reversible thermochromic substance ibizwa ngokuba yi-reversible thermochromic pigment (eyaziwa njenge: thermochromic pigment, thermopowder okanye thermochromic powder).Amasuntswana ale pigment ayingqukuva, enobubanzi obuyi-2 ukuya kwi-7 microns (i-micron enye ilingana newaka lemilimitha).Ngaphakathi kukho i-discoloration substance, kwaye ngaphandle liqokobhe elibonakalayo malunga ne-0.2 ~ 0.5 ye-microns ubukhulu kwaye ayinyibiliki kwaye inganyibiliki.Yeyona nto ikhusela i-discoloration substance kukhukuliseko lwezinye izinto zekhemikhali.Ngoko ke, kubaluleke kakhulu ukuphepha ukonakalisa eli qokobhe ngexesha lokusetyenziswa.

Ubushushu bokutshintsha kombala webala le-thermochromic

1. Iqondo lobushushu elibuthathaka litshintsha ubushushu bombala

Enyanisweni, iqondo lokushisa lokutshintsha kombala wee-pigments ze-thermochromic ayisiyondawo yokushisa, kodwa iqondo lokushisa, oko kukuthi, iqondo lokushisa (T0 ~ T1) libandakanyiwe ukususela ekuqaleni kokutshintsha kombala ukuya ekupheleni kokutshintsha kombala.Ububanzi bomsindoUluhlu lwendalo ngokubanzi luyi-4 ~ 6℃.Ezinye iintlobo ezinombala ochaneke kakhulu (uluhlu olumxinwa, oluchazwa ngu “N”) lunoluhlu olumxinwa lobushushu bokutshintsha kombala, kuphela 2–3℃.

Ngokubanzi, sichaza iqondo lobushushu le-T1 elihambelana nokugqitywa kokutshintsha kombala ngexesha lenkqubo yokufudumeza rhoqo ubushushu njengokutshintsha kombala wobushushu bebala le-thermochromic.

2. Ixesha lomjikelo wokutshintsha kombala wobushushu:

Thatha inani elincinci le-pigment yokutshintsha umbala ovavanyiweyo, udibanise kunye ne-504 epoxy glue, uhlambe isampuli (ubukhulu be-0.05-0.08 mm) kwiphepha elimhlophe kwaye uvumele ukuma kwindawo yokushisa ngaphezu kwe-20 ° C ngosuku olunye.Sika iphethini yephepha le-10 × 30 mm.Thatha ezimbini ii-600 mL zebeakers kwaye uwagcwalise ngamanzi.Ubushushu bamanzi yi-5 ~ 20℃ngaphezulu komda ongaphezulu (T1) wokutshintsha kombala wobushushu besampulu evavanyiweyo kwaye ungekho ngaphantsi kwe-5℃ngaphantsi komda osezantsi (T0).(Kuluhlu lwe-inki ye-RF-65, ubushushu bamanzi bubekwe njenge T0=35℃, T1=70℃.), kwaye ugcine ubushushu bamanzi.Isampuli ibhaptizwa kwiibhekile ezimbini ngokulandelelana, kwaye ixesha lokugqiba umjikelo ngamnye yi-3 ukuya kwe-4 imizuzwana.Jonga utshintsho lombala kwaye urekhode inombolo yomjikelo wombala obuyiselwa umva (ngesiqhelo, umjikelo wokutshintsha umbalaI-mber ye-thermal decolorization series inkulu kune-4000-8000 amaxesha).

Iimeko zokusetyenziswa kwebala le-thermochromic:

I-pigment ye-thermochromic eguqulwayo ngokwayo yinkqubo engazinzanga (ukuzinza kunzima ukutshintsha), ngoko ukumelana nokukhanya kwayo, ukumelana nobushushu, ukuchasana nokuguga kunye nezinye iimpawu ziphantsi kakhulu kwii-pigments eziqhelekileyo, kwaye ingqalelo kufuneka ihlawulwe ekusebenziseni.

1. Ukuchasa ukukhanya:

Ii-pigments ze-Thermochromic zinokumelana nokukhanya okungahambi kakuhle kwaye ziya kukhawuleza ziphele kwaye zingasebenzi phantsi kokukhanya kwelanga okunamandla, ngoko ke zilungele ukusetyenziswa kwangaphakathi kuphela.Gwema ukukhanya kwelanga okunamandla kunye nokukhanya kwe-ultraviolet, okuya kunceda ukwandisa ubomi bombala oguqula umbala.

2. Ukumelana nobushushu:

I-pigment ye-thermochromic inokumelana nobushushu obuphezulu be-230℃ngexesha elifutshane (malunga nemizuzu eyi-10), kwaye ingasetyenziselwa ukubumba inaliti kunye nokunyanga ubushushu obuphezulu.Nangona kunjalo, ukuzinza kwe-thermal ye-pigments etshintsha umbala yahlukile kumbala-isimo sokuphuhlisa kunye nemeko ye-achromatic, kwaye uzinzo lwangaphambili luphezulu kunolo lwamva.Ukongeza, xa iqondo lobushushu lingaphezulu kwama-80°C, i-organic matter equka inkqubo yokutshintsha umbala nayo iya kuqalisa ukuthotywa.Ngoko ke, ii-pigments ezitshintsha umbala kufuneka zithintele ukusebenza ixesha elide kumaqondo obushushu angaphezu kwama-75°C.

Ukugcinwa kwemibala ye-thermochromic:

Le mveliso kufuneka igcinwe kwindawo epholileyo, eyomileyo kwaye emnyama ngokupheleleyo.Ekubeni ukuzinza kwe-pigment yokutshintsha umbala kwimeko yokuphuhlisa umbala kuphezulu kunesimo se-achromatic, iintlobo ezinokushisa okuphantsi kombala kufuneka zigcinwe efrijini.Ngaphantsi kwezi meko zingasentla, ukusebenza kweentlobo ezininzi zemibala yokutshintsha umbala akuzange kuthotywe kakhulu emva kweminyaka emi-5 yokugcina.