Ingredient yeGypsum Mortar Admixture?

Imwe musanganiswa ine zvisingakwanisi mukuvandudza mashandiro egypsum slurry. Kana kuita kwegypsum mortar kuri kuwana mhedzisiro inogutsa uye kusangana nezvinodiwa zvakasiyana zvemashandisirwo, makemikari anosanganisa, admixtures, mafirita, uye zvinhu zvakasiyana siyana zvinodiwa kuti zvisanganisirwe uye zviwedzere nenzira yesainzi uye inonzwisisika.

1. Coagulation regulator

Coagulation regulators inonyanya kukamurwa kuita retarders uye accelerator. Mune gypsum yakaoma-yakasanganiswa dhaka, retarders anoshandiswa kune zvigadzirwa zvakagadzirirwa nepurasita yeParis, uye accelerators anodiwa kune zvigadzirwa zvakagadzirirwa neanhydrous gypsum kana zvakananga kushandisa dihydrate gypsum.

2. Retarder

Kuwedzera retarder kune gypsum yakaoma-yakavhenganiswa zvivakwa zvekuvaka inovharira iyo hydration maitiro ehemihydrate gypsum uye inowedzera nguva yekuisa. Kune akawanda mamiriro eiyo hydration yepurasita, kusanganisira chikamu chekuumbwa kwepurasita, tembiricha yepurasita zvinhu paunenge uchigadzira zvigadzirwa, particle fineness, kuseta nguva uye pH kukosha kwezvigadzirwa zvakagadzirirwa, nezvimwewo. , saka pane mutsauko mukuru muhuwandu hwekudzosa mumamiriro akasiyana. Parizvino, iyo iri nani retarder yegypsum muChina ndiyo yakagadziridzwa protein (yakakwira protein) retarder, ine zvakanakira mutengo wakaderera, nguva yakareba yekunonoka, kurasikirwa kwesimba kushoma, kuvakwa kwakanaka kwechigadzirwa, uye nguva yakareba yakavhurika. Huwandu hunoshandiswa mukugadzirira kwepasi-layer stucco plaster kazhinji 0.06% kusvika 0.15%.

3. Coagulant

Kumhanyisa iyo slurry inomutsa nguva uye kurebesa iyo slurry inokurudzira kumhanya ndiyo imwe yenzira dzemuviri coagulation kukurumidza. Inowanzo shandiswa kemikari coagulants mune anhydrite poda yekuvaka zvinhu zvinosanganisira potassium chloride, potassium silicate, sulfate uye zvimwe asidhi zvinhu. Iyo dosage inowanzo 0.2% kusvika 0.4%.

4. Mvura inochengetedza mumiririri

Gypsum yakaoma-musanganiswa zvivakwa zvekuvaka hazviparadzaniswe kubva kune vanochengetedza mvura. Kuvandudza huwandu hwekuchengetedza mvura yegypsum chigadzirwa slurry ndeyekuona kuti mvura inogona kuvapo mugypsum slurry kwenguva yakareba, kuitira kuti uwane yakanaka hydration kuomesa maitiro. Kuvandudza kuvakwa kwegypsum poda zvekuvakisa, kuderedza nekudzivirira kupatsanurwa uye kubuda ropa kwegypsum slurry, kunatsiridza kusaga kwe slurry, kurebesa nguva yekuvhura, uye kugadzirisa matambudziko emhando yeinjiniya sekupaza uye kugova zvese hazviparadzaniswe kubva kune vanochengeta mvura. Kunyangwe iyo mvura inochengetedza mumiriri yakanaka inoenderana zvakanyanya nekupararira kwayo, instant solubility, moldability, thermal stability uye thickening pfuma, pakati peiyo inonyanya kukosha index ndeyekuchengetedza mvura.

Kune marudzi mana ezvekuchengetedza mvura:

①Cellulosicmvura yekuchengetedza mumiririri

Parizvino, inonyanya kushandiswa pamusika ndeye hydroxypropyl methylcellulose, inoteverwa nemethyl cellulose uye carboxymethyl cellulose. Kuitwa kwese kwehydroxypropyl methylcellulose kuri nani pane kwemethylcellulose, uye kuchengetwa kwemvura kwezviviri kwakakwira zvakanyanya kupfuura iyo yecarboxymethylcellulose, asi iyo thickening mhedzisiro uye bonding mhedzisiro yakaipa kupfuura iyo yecarboxymethylcellulose. Mune gypsum yakaoma-yakasanganiswa zvekuvakisa, huwandu hwehydroxypropyl uye methyl cellulose kazhinji 0.1% kusvika 0.3%, uye huwandu hwecarboxymethyl cellulose i0.5% kusvika 1.0%. Nhamba huru yemienzaniso yekushandiswa inoratidza kuti kushandiswa kwakasanganiswa kwezviviri zviri nani.

②Starch kuchengetedza mvura

Starch inochengetedza mvura inoshandiswa kunyanya gypsum putty uye pamusoro pepurasita plaster, uye inogona kutsiva chikamu kana yese cellulose mvura inochengetedza mumiriri. Kuwedzera starch-yakavakirwa mvura-inochengetedza mumiriri kune gypsum yakaoma poda zvekuvakisa zvinogona kuvandudza kushanda, kushanda, uye kuenderana kwe slurry. Anowanzo shandiswa starch-based water-retaining agents anosanganisira tapioca starch, pregelatinized starch, carboxymethyl starch, uye carboxypropyl starch. Huwandu hwe starch-based water-retaining agent inowanzoita 0.3% kusvika 1%. Kana huwandu hwacho hwakanyanya, huchakonzera mildew yezvigadzirwa zvegypsum munzvimbo ine hunyoro, izvo zvinokanganisa zvakananga kunaka kweprojekiti.

③Glue mvura inochengetedza agent

Mamwe anonamira ipapo ipapo anogona zvakare kuita zvirinani kuchengetedza mvura. Semuyenzaniso, 17-88, 24-88 polyvinyl doro poda, Tianqing chingamu uye guar chingamu zvinoshandiswa mu gypsum yakaoma-musanganiswa zvivakwa zvekuvaka zvakaita se gypsum, gypsum putty, uye gypsum insulation glue. Inogona kuderedza huwandu hweselulosi mvura inochengetedza agent. Kunyanya mu-fast-bonding gypsum, inogona kutsiva zvachose cellulose ether-inochengetedza mvura mune dzimwe nguva.

④Inorganic mvura yekuchengetedza zvinhu

Iko kushandiswa kwekubatanidza zvimwe zvinhu zvinochengeta mvura mu gypsum yakaoma-yakasanganiswa zvivakwa zvekuvaka zvinogona kudzikisa huwandu hwezvimwe zvinhu zvinochengetedza mvura, kuderedza mutengo wechigadzirwa, uye zvakare kuita rimwe basa mukuvandudza kushanda uye kuvakwa kwegypsum slurry. Inowanzo shandiswa inorganic mvura-yekuchengetedza zvinhu zvinosanganisira bentonite, kaolin, diatomaceous pasi, zeolite poda, perlite poda, attapulgite ivhu, nezvimwe.

5. Adhesive

Iko kushandiswa kweadhesives mu gypsum yakaoma-yakavhenganiswa zvivakwa zvekuvaka ndeyechipiri chete kune vanochengeta mvura-vamiririri uye vanodzoreredza. Gypsum self-leveling mortar, bonded gypsum, caulking gypsum, uye thermal insulation gypsum glue zvese hazviparadzaniswe kubva kune zvinonamira.

 Redispersible latex poda

Redispersible latex powder inoshandiswa zvakanyanya mu gypsum self-leveling mortar, gypsum insulation compound, gypsum caulking putty, etc. Kunyanya mu gypsum self-leveling mortar, inogona kuvandudza viscosity uye fluidity ye slurry, uye zvakare kuita basa guru mukuderedza. delamination, kudzivirira kubuda ropa, uye kunatsiridza kutsemuka kuramba. Iyo dosage inowanzo 1.2% kusvika 2.5%.

Instant polyvinyl doro

Parizvino, instant polyvinyl doro rinoshandiswa muhuwandu hwakawanda mumusika ndeye 24-88 uye 17-88. Inowanzoshandiswa muzvigadzirwa zvakaita sekubatanidza gypsum, gypsum putty, gypsum composite thermal insulation compound, uye plastering plaster. 0.4% kusvika 1.2%.

Guar gum, Tianqing gum, carboxymethyl cellulose, starch ether, nezvimwewo zvese zvinonamira zvine mabasa akasiyana ekubatanidza mu gypsum yakaoma-yakasanganiswa zvekuvakisa.

6. Mukobvu

Kukora kunonyanya kuvandudza kushanda uye kusagika kwegypsum slurry, iyo yakafanana neinonamatira uye inochengetedza mvura, asi kwete zvachose. Zvimwe zvigadzirwa zvinokora zvinobudirira mukukora, asi hazvina kunaka maererano nesimba rakabatana uye kuchengetedza mvura. Paunenge uchigadzira gypsum yakaoma poda yekuvaka zvivakwa, iro basa guru rezvisanganiswa rinofanirwa kutariswa zvizere kuti uise admixtures zvirinani uye zvine musoro. Zvigadzirwa zvinogara zvichishandiswa zvakakora zvinosanganisira polyacrylamide, Tianqing chingamu, guar gum, carboxymethyl cellulose, nezvimwe.

7. Air-entraining agent

Air-entraining agent, inozivikanwawo seanopupuma agent, inonyanya kushandiswa mugypsum yakaoma-yakasanganiswa zvekuvakisa senge gypsum insulation compound uye plaster plaster. Air-entraining agent (foaming agent) inobatsira kuvandudza kuvaka, kutsemuka, kusamira kwechando, kuderedza kubuda ropa uye kupatsanura, uye dosi yacho inowanzoita 0.01% kusvika 0.02%.

8. Defoamer

Defoamer inowanzo shandiswa mu gypsum self-leveling mortar uye gypsum caulking putty, iyo inogona kuvandudza density, simba, kudzivirira mvura uye kubatana kweslurry, uye dosi yacho inowanzo 0.02% kusvika 0.04%.

9. Water reducer

Mvura inoderedza mumiriri inogona kuvandudza kuyerera kwegypsum slurry uye kusimba kwegypsum yakaomeswa muviri, uye inowanzo shandiswa mugypsum self-leveling mortar uye plaster plaster. Parizvino, zvigadziriso zvemvura zvinogadzirwa mudzimba zvakaiswa zvichienderana nekuyerera kwavo uye simba mhedzisiro: polycarboxylate yakadzoserwa mvura inoderedza, melamine yakakwira-inoderedza mvura inoderedza, tii-yakavakirwa yakakwirira-inoshanda yakadzoreredza mvura inoderedza, uye lignosulfonate zvinoderedza mvura. Paunenge uchishandisa zvigadziriso zvemvura mu gypsum yakaoma-musanganiswa zvivakwa zvekuvaka, kunze kwekufunga mashandisirwo emvura uye simba, kutarisisa kunofanirwa kubhadharwa kune yekumisikidza nguva uye fluidity kurasikirwa kwezvinhu zvekuvaka gypsum nekufamba kwenguva.

10. Waterproofing agent

Kukanganisa kukuru kwezvigadzirwa zvegypsum kusamira zvakanaka kwemvura. Nzvimbo dzine hunyoro hwemhepo yakakwirira dzine zvinodiwa zvepamusoro zvekudzivirira mvura yegypsum yakaoma-yakasanganiswa dhaka. Kazhinji, kudzivirira kwemvura kwegypsum yakaoma kunovandudzwa nekuwedzera hydraulic admixtures. Panyaya yemvura yakanyorova kana yakazara, kuwedzera kwekunze kwe hydraulic admixtures kunogona kuita kuti iyo yakapfava coefficient yegypsum yakaoma muviri isvike kupfuura 0.7, kuitira kuti isangane nechigadzirwa chesimba zvinodiwa. Makemikari anosanganiswa anogona zvakare kushandiswa kudzikisa kunyungudika kwegypsum (kureva, kuwedzera kunyorovesa coefficient), kuderedza adsorption yegypsum kumvura (kureva, kuderedza kunyura kwemvura) uye kuderedza kukukurwa kwegypsum yakaoma muviri (kureva. , kuparadzaniswa nemvura). Gypsum inodzivirira mvura inosanganisira ammonium borate, sodium methyl siliconate, silicone resin, emulsified paraffin wax, uye silicone emulsion inodzivirira mvura ine mhedzisiro iri nani.

11. Active stimulator

Kuita kwechisikigo uye makemikari anhydrites kunopa kunamatira uye simba rekugadzira gypsum yakaoma-musanganiswa zvivakwa zvekuvaka. Iyo acid activator inogona kumhanyisa yekutanga hydration mwero weanhydrous gypsum, kupfupisa nguva yekumisikidza, uye kugadzirisa yekutanga simba regypsum yakaomeswa muviri. Iyo alkaline activator haina mhedzisiro payekutanga hydration rate yeanhydrous gypsum, asi inogona kuvandudza zvakanyanya simba rekupedzisira reiyo yakaomeswa gypsum muviri, uye inogona kuita chikamu cheiyo hydraulic gelling zvinhu mumuviri wakaomeswa wegypsum, zvinobudirira kuvandudza kudzivirira kwemvura. iyo yakaoma gypsum muviri zvepabonde. Iko kushandiswa kweiyo acid-base compound activator iri nani pane iyo imwechete acidic kana basic activator. Acid stimulants inosanganisira potassium alum, sodium sulfate, potassium sulfate, etc. Alkaline activator inosanganisira quicklime, simende, simenti clinker, calcined dolomite, nezvimwewo.

12. Thixotropic lubricant

Mafuta e Thixotropic anoshandiswa mu-self-leveling gypsum kana kuisa gypsum, iyo inogona kuderedza kuyerera kwegypsum mortar, kuwedzera nguva yakazaruka, kudzivirira kuiswa uye kugadziriswa kwe slurry, kuitira kuti slurry inogona kuwana lubricity yakanaka uye kushanda. Panguva imwecheteyo, chimiro chemuviri chakafanana, uye simba rayo repamusoro rinowedzera.