Putty poda inonyanya kuumbwa nezvinhu zvinogadzira firimu (bonding materials), fillers, water-retaining agents, thickeners, defoamers, etc. Common organic chemical raw materials in putty powder inonyanya kusanganisira: cellulose, pregelatinized starch, starch ether, polyvinyl doro, disperible latex powder, etc. Kuita uye kushandiswa kwemakemikari akasiyana-siyana mbishi zvinhu zvinoongororwa chimwe nechimwe pazasi.
1: Tsanangudzo uye musiyano we fiber, cellulose uye cellulose ether
Fiber (US: Fiber; Chirungu: Fiber) zvinoreva chinhu chinoumbwa nesimbi dzinoramba dziripo kana dzisingaperi. Zvakadai sechirimwa fiber, vhudzi remhuka, sirika fiber, synthetic fiber, nezvimwe.
Cellulose ndeye macromolecular polysaccharide inoumbwa neglucose uye ndiyo inonyanya kuumbwa chikamu chechirimwa masero madziro. Patembiricha yemumba, cellulose hainyungudike mumvura kana muzvinonyungudutsa zvinosanganisirwa. Iyo cellulose yemukati yekotoni iri padyo ne100%, ichiita iyo yakasarudzika yakasarudzika sosi ye cellulose. Kazhinji huni, cellulose inotora 40-50%, uye kune 10-30% hemicellulose uye 20-30% lignin. Musiyano pakati pe cellulose (kurudyi) uye starch (kuruboshwe):
Kazhinji kutaura, zvese starch uye cellulose macromolecular polysaccharides, uye iyo molecular formula inogona kuratidzwa se (C6H10O5) n. Huremu hwemamorekuru hweselulosi hwakakura kupfuura hwesitachi, uye cellulose inogona kuodzwa kuti ibudise sitachi. Cellulose iD-glucose uye β-1,4 glycoside Macromolecular polysaccharides inoumbwa nemabhondi, nepo starch inoumbwa ne-α-1,4 glycosidic bonds. Cellulose kazhinji haina branched, asi starch ine branched ne 1,6 glycosidic bonds. Cellulose haina kunyungudika mumvura, ukuwo starch ichinyungudika mumvura inopisa. Cellulose haina hanya neamylase uye haishanduki bhuruu kana yaiswa iodine.
Zita reChirungu re cellulose ether is cellulose ether, inova musanganiswa wepolymer ine ether chimiro chakagadzirwa ne cellulose. Icho chigadzirwa chemakemikari anoita ye cellulose (chirimwa) ine etherification agent. Zvinoenderana nekemikari chimiro chechikamu cheiyo inotsiva mushure meiyo etherification, inogona kupatsanurwa kuita anionic, cationic uye nonionic ethers. Zvichienderana ne etherification agent inoshandiswa, pane methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose cellulose, cyanoethyl cellulose, benzyl cyanoethyl carulose cellulose, benzyl cyanoethyl carulose, cellulose, zvichingodaro Kukobvura mashandiro e cellulose ether thickener Cellulose ether thickener is non-ionic thickener, iyo inokora zvakanyanya ne hydration uye kupindirana pakati pemamorekuru. Iyo polymer cheni ye cellulose ether iri nyore kugadzira hydrogen bond nemvura mumvura, uye iyo hydrogen bond inoita kuti ive nepamusoro hydration uye inter-molecular entanglement.
Kana iyo cellulose ether thickener inowedzerwa kune latex pendi, inotora mvura yakawanda, inokonzera iyo pachayo kuwedzera zvakanyanya, kuderedza nzvimbo yemahara ye pigments, fillers uye latex particles; panguva imwecheteyo, iyo cellulose ether molecular cheni inopindirana kuti iite matatu-dimensional network chimiro, uye iwo mavara Fillers uye latex particles akavharirwa pakati mesh uye haagoni kuyerera akasununguka. Pasi pezviviri izvi, viscosity yehurongwa inovandudzwa! Tawana iko kukora kwataida!
Yakajairika cellulose (ether): Kazhinji kutaura, cellulose pamusika inoreva hydroxypropyl, hydroxyethyl inonyanya kushandiswa pendi, latex pendi, uye hydroxypropyl methylcellulose inoshandiswa kugadzira dhaka, putty uye zvimwe zvigadzirwa. Carboxymethyl cellulose inoshandiswa kune yakajairwa putty poda yemukati madziro. Carboxymethyl cellulose, inozivikanwawo se sodium carboxymethyl cellulose, inonzi (CMC): Carboxymethyl cellulose (CMC) isiri-chepfu, isina kunhuhwirira chena flocculent poda ine kuita kwakagadzikana uye inonyungudika nyore mumvura. Alkaline kana alkaline transparent viscous fluid, inonyungudika mune mamwe maglue anonyungudika mumvura uye resin, isinganyunguriki muorganic solvents senge ethanol. CMC inogona kushandiswa sebinder, thickener, suspending agent, emulsifier, dispersant, stabilizer, sizing agent, etc. Carboxymethyl cellulose (CMC) ndicho chigadzirwa chine goho guru, kushandiswa kwakakura kwazvo, uye kushandiswa kwakanyanya pakati pe cellulose ethers. , inowanzozivikanwa se "industrial monosodium glutamate". Carboxymethyl cellulose ine mabasa ekusunga, kukora, kusimbisa, emulsifying, kuchengetedza mvura uye kumiswa. 1. Kushandiswa kwe sodium carboxymethyl cellulose muindasitiri yezvokudya: sodium carboxymethyl cellulose haisi yakanaka emulsification stabilizer uye thickener mukushandiswa kwezvokudya, asiwo ine yakanakisa kutonhora uye kunyunguduka kugadzikana, uye inogona kuvandudza Kunakidza kwechigadzirwa kunowedzera nguva yekuchengetedza. 2. Kushandiswa kwe sodium carboxymethyl cellulose mumhizha yemishonga: inogona kushandiswa semulsion stabilizer yejekiseni, binder uye firimu-forming agent yemapiritsi mumhizha yemishonga. 3. CMC inogona kushandiswa seanorwisa-kugadzirisa agent, emulsifier, dispersant, leveling agent, uye inonamira kune machira. Iyo inogona kuita iyo yakasimba yemukati yekuputira yakaenzana kugovaniswa musolvent, kuitira kuti iyo yekupfeka irege delaminate kwenguva yakareba. Inoshandiswawo zvakanyanya mupende. 4. Sodium carboxymethyl cellulose inogona kushandiswa se flocculant, chelating agent, emulsifier, thickener, water retaining agent, sizing agent, film-forming material, etc. Inoshandiswawo zvakanyanya mumagetsi, mishonga yezvipembenene, dehwe, plastiki, kudhinda, ceramics, Zuva nezuva-kushandisa makemikari indasitiri uye mamwe minda, uye nekuda kwekuita kwayo kwakanakisa uye kuwanda kwekushandisa, inogara ichigadzira nyowani nyowani. minda, uye tarisiro yemusika yakakura zvakanyanya. Mienzaniso yekushandisa: kunze kwemadziro putty poda formula yemukati madziro putty poda formula 1 Shuangfei hupfu: 600-650kg 1 Shuangfei upfu: 1000kg 2 White simende: 400-350kg 2 Pregelatinized starch: 5-6kg 3 Pregelatinized starch: 5 -6kg 103 CMC: -15kg kana HPMC2.5-3kg4 CMC: 10-15kg kana HPMC2.5-3kg Putty poda yakawedzera carboxymethyl cellulose CMC, pregelatinized starch performance: ① Iine yakanaka kukurumidza Kukobvu kugona; bonding performance, uye kumwe kuchengetwa kwemvura; ② Kuvandudza iyo anti-kutsvedza kugona (sagging) yezvinhu, kunatsiridza mashandiro echinyorwa, uye kuita kuti kuvhiya kuve nyore; wedzera nguva yekuvhura kwezvinhu. ③ Mushure mekuoma, nzvimbo yacho inotsvedzerera, haidonhe kubva paupfu, ine yakanaka yekugadzira firimu zvinhu uye isina mavanga. ④ Zvinotonyanya kukosha, iyo dosage idiki, uye yakaderera dosi inogona kuwana yakakwirira mhedzisiro; panguva imwecheteyo, mari yekugadzira inoderedzwa neanenge 10-20%. Muindasitiri yekuvaka, CMC inoshandiswa mukugadzira kongiri preforms, iyo inogona kuderedza kurasikirwa kwemvura uye kuita senge retarder. Kunyangwe yekuvaka kwakakura, inogona zvakare kuvandudza simba rekongiri uye kufambisa preforms kudonha kubva kune membrane. Chimwe chinangwa chikuru ndechekukwenya madziro machena uye putty poda, putty paste, iyo inogona kuchengetedza yakawanda yekuvaka zvinhu uye kuwedzera inodzivirira layer uye kupenya kwemadziro. Hydroxyethyl methylcellulose, inonzi (HEC): kemikari formula:
1. Nhanganyaya kune hydroxyethyl cellulose: Hydroxyethyl cellulose (HEC) isiri-ionic cellulose ether yakagadzirwa kubva kune yakasikwa polymer material cellulose kuburikidza nehurongwa hwemakemikari maitiro. Iyo isina kunhuhwirira, isinganakidze, isina-chepfu chena poda kana granule, inogona kunyungudutswa mumvura inotonhora kuti igadzire yakajeka viscous mhinduro, uye kunyungudika hakukanganiswe neiyo pH kukosha. Iine kukora, kusunga, kuparadzira, emulsifying, firimu-kuumba, kumisa, adsorbing, kushanda kwepamusoro, kuchengetedza unyoro uye kusagadzikana kwemunyu.
2. Technical zviratidzo Project standard Kuonekwa Muchena kana yellowish powder Molar substitution (MS) 1.8-2.8 Mvura isingagadziki chinhu (%) ≤ 0.5 Kurasikirwa pakuomeswa (WT%) ≤ 5.0 Residue pakupisa (WT%) ≤ 5.0 PH kukosha 6.0- 8. Viscosity (mPa.s) 2%, 30000, 60000, 100000 aqueous solution pa20°C Tatu, zvakanakira hydroxyethyl cellulose High thickening effect.
● Hydroxyethyl cellulose inopa zvakanakisa zvekuputira zvivakwa zve latex coatings, kunyanya yakakwirira PVA coatings. Hapana flocculation inoitika kana pendi iri gobvu kuvaka.
● Hydroxyethyl cellulose ine yakakwirira thickening effect. Inogona kuderedza dosi, kuvandudza hupfumi hwefomula, uye kuvandudza kukwesha kuramba kwejasi.
Yakanakisa rheological properties
● Mushonga wemvura wehydroxyethyl cellulose isiri yeNewtonian system, uye pfuma yemushonga wayo inonzi thixotropy.
● Munzvimbo yakadzikama, mushure mokunge chigadzirwa chacho chanyungudutswa zvachose, chigadziro chekuputira chinochengetedza yakanakisa thickening uye kuvhura mamiriro.
● Mumamiriro ekudururira, hurongwa hunochengetedza viscosity ine mwero, kuitira kuti chigadzirwa chive chakanakisa fluidity uye hachizoputi.
● Kana yakashandiswa nebhurashi uye roller, chigadzirwa chinopararira nyore pane substrate. Yakanakira kuvaka. Panguva imwecheteyo, ine yakanaka splash kuramba.
● Pakupedzisira, mushure mokunge kuvhara kwapera, viscosity yegadziriro inodzoka pakarepo, uye kuvhara pakarepo kunopera.
Dispersibility uye Solubility
● Hydroxyethyl cellulose inobatwa nekunonoka kupera, iyo inogona kunyatsodzivirira agglomeration kana poda yakaoma inowedzerwa. Mushure mekuona kuti HEC poda yakapararira zvakanaka, tanga hydration.
● Hydroxyethyl cellulose ine kurapa kwakakodzera kwepamusoro inogona kunyatsogadzirisa chiyero chekunyungudika uye viscosity yekuwedzera chiyero chechigadzirwa.
kuchengetedza kugadzikana
● Hydroxyethyl cellulose ine zvakanaka anti-mildew uye inopa nguva yakakwana yekuchengetedza pendi. Zvinonyatso dzivirira pigments uye mafirita kubva pakugadzirisa. 4. Mashandisiro ekushandisa: (1) Wedzera zvakananga panguva yekugadzira Iyi nzira ndiyo yakapfava uye inotora nguva pfupi. Matanho acho ndeaya anotevera: 1. Isa mvura yakachena mubhaketi hombe rine shear agitator yakakwirira. 2. Tanga kubvongodza uchienderera mberi nekumhanya kwakaderera uye zvishoma nezvishoma sieve hydroxyethyl cellulose mumushonga wakaenzana. 3. Ramba uchikurunga kusvikira zvimedu zvose zvanyorova. 4. Zvadaro wedzera antifungal agent uye zvakasiyana-siyana zvinowedzera. Zvakadai semavara, kuparadzira zvinobatsira, mvura yeammonia, nezvimwewo 5. Shingairira kusvikira yose hydroxyethyl cellulose yakanyungudutswa zvachose (viscosity yemhinduro inowedzera zvakanyanya) isati yawedzera zvimwe zvikamu muhutano hwekuita. (2) Gadzirai doro raamai kuti rizoshandiswa: Nzira iyi ndeyekugadzira doro raamai rine mwero wakanyanya kutanga, wobva wawedzera kuchigadzirwa. Kubatsira kweiyi nzira ndeyokuti ine hukuru hunochinja uye inogona kuwedzerwa zvakananga kune yakapedzwa chigadzirwa, asi inofanira kuchengetwa zvakanaka. Matanho acho akafanana nematanho (1-4) nenzira (1): mutsauko ndewekuti hapana high-shear agitator inodiwa, chete mamwe agitator ane simba rakakwana kuchengetedza hydroxyethyl cellulose yakapararira mumhinduro, ramba uchikurudzira kusvikira yapera zvachose. mune viscous solution. Izvo zvinofanirwa kucherechedzwa kuti iyo antifungal agent inofanirwa kuwedzerwa kuna amai doro nekukurumidza. V. Kushandisa 1. Inoshandiswa mumvura-based latex pendi: HEC, sekudzivirira colloid, inogona kushandiswa muvinyl acetate emulsion polymerization kuti ivandudze kugadzikana kwepolymerization system muhuwandu hwepH values. Mukugadzira zvigadzirwa zvakapedzwa, zvinowedzera senge pigment uye mafirita anoshandiswa kuparadzira zvakafanana, kudzikamisa uye kupa mhedzisiro yekukora. Inogona zvakare kushandiswa seanoparadzira mapolymer ekumisa senge styrene, acrylate, uye propylene. Inoshandiswa mupende ye latex inogona kuvandudza zvakanyanya kukora uye kuyera kuita. 2. Mukutaura kwemafuta ekuchera: HEC inoshandiswa seyakakura mumadhaka akasiyana-siyana anodiwa pakuchera, kugadzirisa zvakanaka, kugadzira simende uye fracturing operations, kuitira kuti dhaka riwane mvura yakanaka uye kugadzikana. Kuvandudza dhaka rinotakura simba panguva yekuchera, uye kudzivirira huwandu hwemvura kupinda mukati memafuta kubva mumatope, kudzikamisa kukwanisa kwekugadzira kwemafuta. 3. Inoshandiswa mukuvaka kuvaka uye zvinhu zvekuvaka: Nekuda kwesimba rayo rekuchengetedza mvura, HEC inobudirira thickener uye binder ye simenti slurry uye dhaka. Inogona kusanganiswa mudhaka kuti ivandudze fluidity uye kuita kwekuvaka, uye kurebesa mvura evaporation nguva , Kuvandudza simba rekutanga rekongiri uye kudzivirira kuputika. Inogona kuvandudza zvakanyanya kuchengetedza kwayo kwemvura uye simba rekubatanidza kana ichishandiswa kupurasita, kubatanidza plaster, uye plaster putty. 4. Inoshandiswa mumucheka wemazino: nekuda kwekudzivirira kwayo kwakasimba kumunyu uye asidi, HEC inogona kuvimbisa kugadzikana kwemazino. Mukuwedzera, mushonga wemazino hausi nyore kuoma nekuda kwekuchengetedza kwayo kwakasimba kwemvura uye kukwanisa emulsifying. 5. Kana inoshandiswa mumvura-based inki, HEC inogona kuita kuti inki iome nokukurumidza uye isingapindiki. Pamusoro pezvo, HEC inoshandiswawo zvakanyanya mukudhinda machira nekudhaya, kugadzira mapepa, makemikari ezuva nezuva uye zvichingodaro. 6. Kungwarira pakushandisa HEC: a. Hygroscopicity: Ese marudzi ehydroxyethyl cellulose HEC ane hygroscopic. Mvura iri pasi pe5% inowanzobuda mufekitori, asi nekuda kwenzvimbo dzakasiyana dzekufambisa uye dzekuchengetera, mvura inenge yakakwira kupfuura kana yabva mufekitori. Paunenge uchiishandisa, ingoyera huwandu hwemvura uye ubvise huremu hwemvura paunenge uchiverenga. Usairatidze kune mhepo. b. Dust poda inoputika: kana organic powders yese uye hydroxyethyl cellulose dust powder zviri mumhepo pane imwe chikamu, zvinoputikawo kana zvikasangana nenzvimbo yemoto. Kushanda kwakakodzera kunofanira kuitwa kudzivirira guruva hupfu mumhepo zvakanyanya sezvinobvira. 7. Packaging specifications: Chigadzirwa chacho chinogadzirwa nepepa-plastiki composite bhegi rakaputirwa nepolyethylene mukati bhegi, ine huremu hwemambure e25 kg. Chengetedza munzvimbo ine mhepo uye yakaoma mumba paunenge uchichengeta, uye teerera kune unyoro. Ngwarira kunaya uye kudzivirirwa kwezuva panguva yekufambisa. Hydroxypropyl methyl cellulose, inonzi (HPMC): hydroxypropyl methyl cellulose (HPMC) inonhuhwirira, isingaravi, isina muchetura chena poda, kune mhando mbiri dzepakarepo uye dzisiri-pakarepo, pakarepo, Kana yasangana nemvura inotonhora, inokurumidza. inopararira uye inonyangarika mumvura. Panguva ino, mvura haina viscosity. Mushure memaminitsi maviri, viscosity yemvura inowedzera, ichigadzira yakajeka viscous colloid. Non-instant type: Inogona chete kushandiswa mune dzakaoma poda zvigadzirwa senge putty poda uye simende dhaka. Iyo haigone kushandiswa mune yemvura glue uye pendi, uye pachange paine clumping.
Nguva yekutumira: Zvita-26-2022