Hydroxyprupyl methylcellose (HPMC)Kunyanya kuridza basa rekuchengetwa kwemvura, kuremedza uye kugadzirisa maitiro ekuvaka mu coment, gypsum uye zvimwe zvinhu zveupfu. Kuwedzeredza kwemvura kwekutanga kwekuita kunogona kudzivirira iyo poda kubva pakuomesa uye kupaza nekuda kwekurasikirwa kwemvura, uye kuita kuti hupfu hwave nenguva yekuvakwa kwenguva refu.
Ita sarudzo yezvisarudzo zvemisangano, Aggregates, maAggregates, mvura inounganidza vamiriri, mashandiro emuenzaniso, asi kuita kwayo kwekusungwa kunodzora nekukurumidza pasi pemamiriro ekunyorova uye mvura. Simba rekurongedza rekubatanidza kweiyo plastering mertar inofanira kuderedzwa danda nedanda, iro resimba rekurapa pakati pechigadziko chesimba
Iyo yakakodzera hydration chinangwa chemutumbi ndeyekuti chigadzirwa chehyment hydration chinotora mvura pamwe nechigadziko, uye chinoumba chinobatanidza "nechigadziko chesimba rinodiwa. Kudiridza zvakananga pamusoro pechisimba kuchakonzera kuparadzwa kwakakomba mumvura kubhururuka kwechigadziko nekuda kwemisiyano mukushisa, nekudiridza nguva, uye kudiridza kufanana. Iyo base ine mashoma mvura yekunyudza uye icharamba ichitora mvura iri muduri. Usati waitwa hydration inoenderera, mvura yacho inodhonzwa, iyo inokanganisa hydration uye kupinza kwehydration zvigadzirwa mumatare; Iyo chigadziko chine mvura hombe yemvura, uye mvura iri muduri inoyerera pachigadziko. Iyo yepakati yekufambisa inomhanya inononoka, uye kunyange iyo inofuma yemvura yakaumbwa pakati peguruva uye matrix, iyo inokanganisawo kusungwa kwesangano. Naizvozvo, uchishandisa iyo yakajairika yekudiridza nzira yekudiridza ichingokundikana kunyatsogadzirisa dambudziko remvura yakakwira yekukwira kwemadziro, asi ichakanganisa simba rekubatanidza pakati pehudyu uye chigadziko, zvichikonzera kupaza uye kupaza.
Mhedzisiro ye cellulose ether pane compress uye inojekesa simba reiyo sment frar.
Nekuwedzera kwecellulose ether, masimba ekumanikidza uye sheare inoderera, nekuti cellulose ther inobata mvura uye inowedzera porosity.
Iko kusungwa kwekuita uye kusunganidza simba kunoenderana kana iyo interface pakati peMutumbi uye Chinyorwa Chekutanga chinogona kunyatsoitika "kiyi yekubatanidza" kwenguva yakareba.
Zvinhu zvinokanganisa musungo ushe unosanganisira:
1. Iyo yemvura inotyisa hunhu uye kuomarara kweiyo substrate interface.
2. Iyo yekuchengetwa kwemvura yekugona, kupinza huwandu uye simba rerudzi rwehorari.
3. Midziyo yekuvaka, nzira dzekuvaka uye nharaunda yekuvaka.
Nekuti iyo base denderedzwa rekuvaka maumbwe ine imwe mvura yekuvandudza Mhinduro yechinyakare kune matambudziko aya ndeyekudiridza chigadziko, asi hazvigoneke kuve nechokwadi chekuti chigadziko chakanyoroveswa.
Kutumira Nguva: Kubvumbi-25-2024