unum. Differentia inter adulteratum hydroxypropyl methylcellulose (HPMC) et pura hydroxypropyl methylcellulose (HPMC)
I. Species: pura Hydroxypropyl Methylcellulose HPMC vultus CRINITUS et habet humilitatem mole densitas, vndique a 0.3-0.4g / ml; Adulterata hydroxypropyl methylcellosa HPMC est melius fluidos et sentit gravius, et est a significant differentia in specie ex genuina uber.
II. Status: Pure hydroxypropyl Methylcellulose HPMC pulveris est fibrosum sub microscopio aut magnificare speculum; Dum adulteratum Hydroxypropyl Methylcellulose HPMC potest observari granulares solidos aut crystallis sub microscopio vel magnificantes speculum.
III. Odor: Hydroxypropyl Methylcellulose HPMC non potest olfacies odor ammonia amulum et alcohol; Adulterata hydroxypropyl methylcellosa HPMC potest olet omnia odores, etiam si insipidum sentire gravibus.
IV. Aqueum solution: pura hydroxypropyl methylcellosa HPMC Aqueum solutio patet, princeps lucis transmittanttance, aqua retention rate ≥ XCVII%; Adulterata hydroxypropyl methylcellosa HPMC Aqueum solutio est turbidus, et aquam retention rate difficile ad pervenire LXXX%.
Secundo aqua retention of hydroxypropyl methylcellosus HPMC distinguere commoda et incommoda:
Aqua retention of methyl cellulosa Ather sub altum temperatus conditionibus est momenti indicator distinguere qualitas Methyl Cellulose aether. Factors ut aere temperatus, temperatus et ventus pressura celeritas erit afficiunt volatilizationis rate aquae in cemento et gypsi, secundum products. Ideo in diversis temporibus, sunt quaedam differentias in aqua retention effectus products cum eadem moles HPMC addidit. In specifica constructione, aquam retention effectus de slurry potest accommodetur augendae vel decrescis moles HPMC addidit. Optimum Hydroxypropyl methylcellulose HPMC products potest efficaciter solvere quaestionem de aqua retention sub altum temperatus.
High-quality methylcellulose can be uniformly and effectively dispersed in cement mortar and gypsum-based products, and wrap all solid particles, and form a wetting film, the moisture in the base is gradually released for a long time, and the inorganic The hydration reaction of the gelled material ensures the bond strength and compressive strength of the material. High-qualitas hydroxypropyl Methylcellulose HPMC, eius uniformitas est valde bona, et Mthxy et hydroxypropoxy coetibus aequaliter distribui per cellulosa in aquam in aquam vincula in aquam evaporatio Per altum temperatus tempestate et assequendum princeps aqua retention.
Therefore, in high-temperature summer construction, in order to achieve the water retention effect, it is necessary to add high-quality HPMC products in sufficient quantities according to the formula, otherwise, there will be insufficient hydration, reduced strength, cracking, hollowing and shedding caused by excessive drying. Problems sed etiam auget constructione difficultas operarios. Sicut temperatus guttae, moles aqua HPMC addidit potest paulatim reducitur, et eadem aqua retention effectus potest effectum.
III. Dissolutionem hydroxypropyl Methylcellulose HPMC
In constructione industria, hydroxypropyl methylcellulose HPMC est saepe in neutrum aqua, et HPMC uber est dissolvi solum ut iudicare solutionem rate. Postquam positus in neutrum aquam solum, quod uber quod cito filicum sine disperso est a uber sine superficie curatio; Postquam in neutrum aquam solum, quod productum potest dispergere et non MASSA simul est productum cum superficie curatio. Cum superficiem increatos hydroxypropyl Methylcellulose HPMC dissolvitur solus, una particula dissolvuntur celeriter et formae amet cito causando aquam ad alias particulas, unde in agglomeratione agglomerationem, quae est currently in agglomeratione, quae est in foro, quae est in foro tardus est in foro.
Superficies-tractata hydroxypropylt HPMC Product particulas, in neutrum aqua, singula particulas potest dispersit sine agglomeratione, sed productum viscositas non statim. Post bibula in quadam tempus, eget structuram superficie curatio destruitur et aqua dissolvere HPMC particulas. In hoc tempore, productum particulas fuisse plene dispersit et absorbuit aquam, ut productum non agglomerate aut agglomerate post dissolutionem. Dispersio celeritas et dissolutione celeritas dependent gradum superficie curatio. Si superficie curatio levi, dispersionem celeritas relative tardus et adhaerente celeritate ieiunium; Dum uber cum altum superficiem curatio jejunium dispersionem celeritate et tardus adhaerente celeritate. Si vis ad hanc seriem products dissolvere cito in hoc statu, vos can stillabunt a parva moles alkaline substantias cum dissolvi soli. In current foro est plerumque referred to as instanti products. De characteres ex superficies-tractata HPMC products sunt, in aqueum solution, particulas potest dispergere invicem, potest solvere cito in alkaline rei publicae, et dissolvere tardius in neutrum et acidic.
In characteres de increatos hydroxypropyl methylcellulose HPMC sunt: unum particulam solvit celerrime in acidic, alkaline et neutrum civitatibus, sed non dispergis particularum in liquido, unde in clustering et agglomerationem. In ipsa operatio, post physica dispersionem huius serie products et solida particulas ut Flexilis pulveris, caementa, harenae, etc., et dissolutione rate est valde ieiunium et non agglomerationem et agglomerationem. Cum necesse est dissolvere HPMC products seorsim, haec series products debet esse cum cautius, quod erit agglomerate et tenere simul. Si necesse est dissolvere non-superficies-tractata hydroxypropyl methylcellosa HPMC productum seorsum, necesse est esse uniformiter dispersit cum XCV ° C calidae aqua, et refrigeravit ad dissolvere.
In ipsa productione operatio, haec series ex products saepe dissolvere post esse dispersit cum aliis solidum particula materiae sub alkaline conditionibus, et dissolution rate est aliud ex increatos products. Est etiam idoneam usum in products, quae dissolvuntur solum, sine capaces et massas. In specifica exemplar ex productum potest electus secundum ad dissolutionem rate requiritur per constructionem.
Per constructione processus, utrum sit caementa cæmento vel gypsi-fundatur slurry, maxime ex illis sunt alkaline systems, et quantum HPMC addidit est valde parvum, quod potest esse parva parva. Cum aqua additur, HPMC erit cito dissolvere.
Post tempus: Feb-14-2025