Putty ntụ ntụ bụ tumadi esịnede film-akpụ bekee (bonding ihe), fillers, mmiri na-ejigide mmadụ, thickeners, defoamers, wdg Common organic chemical akụrụngwa na putty ntụ ntụ tumadi na-agụnye: cellulose, pregelatinized starch, starch ether, polyvinyl mmanya. dispersible latex ntụ ntụ, wdg. Arụ ọrụ na ojiji nke dị iche iche chemical akụrụngwa na-nyochaa otu otu n'okpuru.
1: Nkọwa na ọdịiche nke eriri, cellulose na cellulose ether
Fiber (US: Fiber; English: Fiber) na-ezo aka na ihe mejupụtara filaments na-aga n'ihu ma ọ bụ nke na-akwụsị. Dị ka eriri osisi, ntutu anụ, eriri silk, eriri sịntetik, wdg.
Cellulose bụ macromolecular polysaccharide nke mejupụtara glucose na bụ isi ihe nhazi mgbidi cell osisi. N'ebe okpomọkụ dị n'ime ụlọ, cellulose anaghị amị mkpụrụ n'ime mmiri ma ọ bụ n'ime ihe mgbaze nkịtị. Ọdịnaya cellulose nke owu dị nso 100%, na-eme ka ọ bụrụ isi iyi sitere na cellulose kacha dị ọcha. Na osisi n'ozuzu, cellulose bụ 40-50%, na e nwere 10-30% hemicellulose na 20-30% lignin. Ọdịiche dị n'etiti cellulose (n'aka nri) na starch (aka ekpe):
N'ikwu okwu n'ozuzu, ma starch na cellulose bụ polysaccharides macromolecular, na usoro mkpụrụ ndụ nwere ike ịkọwa dị ka (C6H10O5) n. Arọ molekụla nke cellulose karịrị nke starch, na cellulose nwere ike ire ere iji mepụta starch. Cellulose bụ D-glucose na β-1,4 glycoside macromolecular polysaccharides mejupụtara nke agbụ, ebe starch kpụrụ site α-1,4 glycosidic bonds. A naghị ekewa cellulose n'ozuzu ya, mana starch na-ejikọta ya na 1,6 glycosidic bonds. Cellulose anaghị agbaze na mmiri, ebe starch na-agbaze na mmiri ọkụ. Cellulose adịghị enwe mmetụta nke amylase na ọ naghị atụgharị acha anụnụ anụnụ mgbe ekpughere ya na ayodiin.
Aha Bekee nke cellulose ether bụ cellulose ether, nke bụ ngwakọta polymer nke nwere usoro ether nke cellulose mere. Ọ bụ ngwaahịa nke mmeghachi omume kemịkalụ nke cellulose (osisi) nwere ihe etherification. Dị ka usoro nhazi nke kemịkalụ nke nnọchi anya mgbe etherification gasịrị, enwere ike kewaa ya na anionic, cationic na nonionic ethers. Dabere na ihe etherification eji eme ihe, e nwere methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose cellulose, cyanoethyl cellulose, benzyl cyanoethyl cellulose, carboxy. ụlọ ọrụ ihe owuwu, cellulose ether ka a na-akpọkwa cellulose, nke bụ aha na-adịghị mma, a na-akpọkwa ya cellulose (ma ọ bụ ether) nke ọma. Usoro siri ike nke cellulose ether thickener Cellulose ether thickener bụ ihe na-abụghị ionic thickener, nke thickener tumadi site hydration na njikọ dị n'etiti ụmụ irighiri ihe. Agbụ polymer nke cellulose ether dị mfe ịmepụta njikọ hydrogen na mmiri n'ime mmiri, na njikọ hydrogen na-eme ka ọ nwee nnukwu hydration na njikọ nke inter-molecular.
Mgbe a na-agbakwunye cellulose ether thickener na agba latex, ọ na-amịkọrọ mmiri buru ibu, na-eme ka olu nke ya gbasaa nke ukwuu, na-ebelata ohere nke free maka pigmenti, fillers na latex particles; N'otu oge ahụ, cellulose ether molecular chains na-ejikọta ọnụ iji mepụta usoro netwọk nke akụkụ atọ, na agba Fillers na latex particles na-agbanye n'etiti ntupu na enweghị ike ịgba ọsọ n'efu. N'okpuru mmetụta abụọ a, a na-eme ka viscosity nke usoro ahụ dịkwuo mma! Mezuo mmetụta nke ịdị arọ anyị chọrọ!
Cellulose nkịtị (ether): N'ikwu okwu n'ozuzu, cellulose n'ahịa na-ezo aka na hydroxypropyl, hydroxyethyl na-ejikarị eme ihe maka agba, agba latex, na hydroxypropyl methylcellulose na-eji ngwa agha, putty na ngwaahịa ndị ọzọ. A na-eji Carboxymethyl cellulose mee ihe maka ntụ ntụ putty nkịtị maka mgbidi ime. Carboxymethyl cellulose, nke a makwaara dị ka sodium carboxymethyl cellulose, nke a na-akpọ (CMC): Carboxymethyl cellulose (CMC) bụ ihe na-adịghị egbu egbu, na-esi ísì ụtọ na-acha ọcha flocculent ntụ ntụ na-arụ ọrụ siri ike ma dị mfe soluble na mmiri. Alkaline ma ọ bụ alkaline transperent viscous mmiri mmiri, soluble na ndị ọzọ mmiri-soluble glues na resins, insoluble ke organic solvents dị ka ethanol. CMC nwere ike ji mee ihe dị ka ihe nkedo, thickener, suspending gị n'ụlọnga, emulsifier, dispersant, stabilizer, sizing gị n'ụlọnga, wdg Carboxymethyl cellulose (CMC) bụ ngwaahịa na kasị ukwuu mmepụta, ndị widest nso nke ojiji, na kasị adaba ojiji n'etiti cellulose ethers. , nke a na-akpọkarị "ụlọ ọrụ monosodium glutamate". Carboxymethyl cellulose nwere ọrụ nke njide, ndim, ike, emulsifying, mmiri na-ejigide na nkwusioru. 1. Ngwa nke sodium carboxymethyl cellulose na nri ụlọ ọrụ: sodium carboxymethyl cellulose bụghị nanị ezi emulsification stabilizer na thickener na nri ngwa, ma nwere magburu onwe kefriza na agbaze kwụsie ike, na ike melite The ekpomeekpo nke ngwaahịa prolongs oge nchekwa. 2. Iji sodium carboxymethyl cellulose eme ihe na ụlọ ọrụ ọgwụ: enwere ike iji ya dị ka emulsion stabilizer maka injections, ihe nkedo na onye na-emepụta ihe nkiri maka mbadamba nkume na ụlọ ọrụ ọgwụ. 3. Enwere ike iji CMC mee ihe dị ka onye na-edozi ihe mgbochi, emulsifier, dispersant, leveling agent, na nrapado maka mkpuchi. Ọ nwere ike ime ka ọdịnaya siri ike nke mkpuchi na-ekesa nke ọma na ihe mgbaze, nke mere na mkpuchi ahụ adịghị ehichapụ ogologo oge. A na-ejikwa ya na agba. 4. Sodium carboxymethyl cellulose nwere ike ji mee ihe dị ka flocculant, chelating gị n'ụlọnga, emulsifier, thickener, mmiri na-ejigide gị n'ụlọnga, sizing gị n'ụlọnga, film-akpụ ihe, wdg Ọ na-ọtụtụ-eji na ngwá electronic, pesticides, akpụkpọ anụ, plastik, mbipụta, seramiiki. Industrylọ ọrụ kemịkalụ na-eji kwa ụbọchị na mpaghara ndị ọzọ, yana n'ihi arụmọrụ ya dị oke mma yana ọtụtụ ojiji a na-eme ya, ọ na-etolite mpaghara ngwa ọhụrụ mgbe niile, atụmanya ahịa dị oke egwu. sara mbara. Ngwa ihe atụ: mpụta mgbidi putty ntụ ntụ usoro ime mgbidi putty ntụ ntụ ntụ ntụ 1 Shuangfei ntụ ntụ: 600-650kg 1 Shuangfei ntụ ntụ: 1000kg 2 White ciment: 400-350kg 2 Pregelatinized starch: 5-6kg 3 Pregelatinized starch: 05-6k starch -15kg ma ọ bụ HPMC2.5-3kg4 CMC: 10-15kg ma ọ bụ HPMC2.5-3kg Putty ntụ ntụ gbakwunyere carboxymethyl cellulose CMC, pregelatinized starch arụmọrụ: ① Nwere ezigbo ngwa ngwa Thickening ikike; arụmọrụ njikọ, na ụfọdụ njigide mmiri; ② Meziwanye ikike mgbochi-sliding (sagging) nke ihe ahụ, melite arụmọrụ nke ihe ahụ, ma mee ka ọrụ ahụ dị nro; mee ka oge mmeghe nke ihe ahụ dịkwuo ogologo. ③ Mgbe ihichachara, elu ahụ dị mma, ọ naghị adapụ ntụ ntụ, nwere ezigbo ihe na-emepụta ihe nkiri na enweghị ntụpọ. ④ Nke kachasị mkpa, usoro ọgwụgwọ ahụ dị ntakịrị, na obere usoro ọgwụgwọ dị ala nwere ike nweta mmetụta dị elu; n'otu oge ahụ, ọnụ ahịa mmepụta na-ebelata ihe dịka 10-20%. N'ime ụlọ ọrụ mmepụta ihe, a na-eji CMC na-emepụta ihe ndị na-emepụta ihe na-emepụta ihe, nke nwere ike ibelata mmiri na-efunahụ ma mee ka ọ bụrụ ihe nkwụsịtụ. Ọbụlagodi maka ihe owuwu buru ibu, ọ nwekwara ike melite ike nke kọmpụta ma mee ka preforms dapụ na akpụkpọ ahụ. Nzube ọzọ bụ isi bụ ikpochapụ mgbidi na-acha ọcha na ntụ ntụ ntụ, pasta putty, nke nwere ike ịchekwa ọtụtụ ihe ụlọ ma mee ka oyi akwa na-egbuke egbuke na mgbidi. Hydroxyethyl methylcellulose, nke a na-akpọ (HEC): usoro kemịkal:
1. Okwu Mmalite hydroxyethyl cellulose: Hydroxyethyl cellulose (HEC) bụ a na-abụghị ionic cellulose ether mere si eke polymer ihe cellulose site a usoro nke chemical usoro. Ọ bụ ihe na-esi ísì ụtọ, enweghị ụtọ, ntụ ntụ ọcha na-adịghị egbu egbu ma ọ bụ granule, nke nwere ike igbari na mmiri oyi iji mepụta ngwọta viscous na-egbuke egbuke, na nkwụsịtụ adịghị emetụta uru pH. Ọ nwere ndim, njide, na-agbasasị, emulsifying, imepụta ihe nkiri, nkwusioru, mgbasa ozi, ọrụ elu, ihe na-ejide mmiri na ihe na-egbochi nnu.
2. Nkà na ụzụ egosi Project ọkọlọtọ Ọdịdị White ma ọ bụ odo odo ntụ ntụ Molar nnọchi (MS) 1.8-2.8 Mmiri na-adịghị ike (%) ≤ 0.5 Mfu na ihicha (WT%) ≤ 5.0 Residue on mgbanye (WT%) ≤ 5.0 PH uru 6.0- 8.5. Viscosity (mPa.s) 2%, 30000, 60000, 100000 aqueous ngwọta na 20 ° C atọ, uru nke hydroxyethyl cellulose High ndim mmetụta.
● Hydroxyethyl cellulose na-enye ezigbo mkpuchi mkpuchi maka mkpuchi latex, karịsịa akwa mkpuchi PVA. Ọ dịghị flocculation na-eme mgbe agba bụ oké ewu ewu.
● Hydroxyethyl cellulose nwere mmetụta dị nro dị elu. Ọ nwere ike ibelata usoro onunu ogwu, meziwanye aku na uba nke usoro, ma melite nguzogide ntughari nke mkpuchi.
Njirimara rheological dị mma
● Ihe ngwọta mmiri nke hydroxyethyl cellulose bụ usoro nke na-abụghị Newtonian, a na-akpọkwa ihe ngwọta ya thixotropy.
● Na steeti kwụ ọtọ, mgbe agbazechara ngwaahịa ahụ kpamkpam, usoro mkpuchi ahụ na-edobe ọnọdụ kachasị mma na oghere oghere.
● N'ọnọdụ nke ịwụsa, usoro ahụ na-ejigide viscosity na-agafeghị oke, nke mere na ngwaahịa ahụ nwere ezigbo mmiri mmiri na ọ gaghị agbawa.
● Mgbe etinyere ya na brush na rola, ngwaahịa na-agbasa ngwa ngwa na mkpụrụ. Ọ dị mma maka owuwu. N'otu oge ahụ, ọ nwere ezigbo nguzogide nfesa.
● N'ikpeazụ, mgbe mkpuchi ahụ gwụchara, viscosity nke usoro ahụ na-agbake ozugbo, mkpuchi ahụ na-agbakwa ozugbo.
Dispersibility na Solubility
● A na-agwọ hydroxyethyl cellulose na mgbasa na-egbu oge, nke nwere ike igbochi agglomeration nke ọma mgbe a na-agbakwunye ntụ ntụ. Mgbe ijide n'aka na HEC ntụ ntụ na-agbasa nke ọma, malite hydration.
● Hydroxyethyl cellulose na ọgwụgwọ elu kwesịrị ekwesị nwere ike ịhazigharị ọnụego mgbasa na viscosity mmụba nke ngwaahịa.
nchekwa kwụsie ike
● Hydroxyethyl cellulose nwere ezigbo mgbochi mildew ma na-enye oge nchekwa agba zuru oke. Nke ọma na-egbochi pigmenti na ihe ndị na-ejupụta na-edozi. 4. Otu esi eji: (1) Tinye ozugbo n'oge mmepụta Usoro a bụ nke kachasị mfe ma na-ewe oge kacha nta. Usoro ndị a dị ka ndị a: 1. Tinye mmiri dị ọcha n'ime nnukwu ịwụ nke nwere nnukwu ihe na-eme mkpọtụ. 2. Malite na-akpali akpali na-aga n'ihu na obere ọsọ ma jiri nwayọọ nwayọọ gbanye hydroxyethyl cellulose n'ime ngwọta nke ọma. 3. Gaa n'ihu na-akpalite ruo mgbe etinyere ihe niile. 4. Mgbe ahụ gbakwunye onye na-ahụ maka antifungal na ihe mgbakwunye dị iche iche. Dị ka pigmenti, ihe enyemaka na-agbasasị, mmiri amonia, wdg 5. Na-akpali ruo mgbe niile hydroxyethyl cellulose na-agbaze kpamkpam (viscosity nke ngwọta na-abawanye nke ukwuu) tupu ịgbakwunye ihe ndị ọzọ na usoro maka mmeghachi omume. (2) Kwadebe mmanya na-egbu nne maka ojiji: Usoro a bụ ịkwadebe mmanya nne na-etinye uche dị elu, wee tinye ya na ngwaahịa ahụ. Uru nke usoro a bụ na ọ nwere mgbanwe dị ukwuu ma nwee ike itinye ya ozugbo na ngwaahịa emechara, mana a ga-echekwa ya nke ọma. Usoro ndị ahụ yiri nzọụkwụ (1-4) na usoro (1): ihe dị iche bụ na ọ dịghị onye na-eme ihe dị elu dị mkpa, ọ bụ naanị ụfọdụ ndị na-agba ume nwere ike zuru ezu iji mee ka hydroxyethyl cellulose na-agbasasị n'otu n'otu na ngwọta, nọgide na-akpali ruo mgbe agbazere kpamkpam. n'ime ngwọta viscous. Ekwesiri iburu n'uche na a ga-agbakwunye onye na-ahụ maka antifungal na nne mmanya ozugbo enwere ike. V. Ngwa 1. A na-eji agba latex na-adabere na mmiri: HEC, dị ka colloid nchebe, nwere ike iji mee ihe na vinyl acetate emulsion polymerization iji meziwanye nkwụsi ike nke usoro polymerization n'ọtụtụ pH ụkpụrụ. N'imepụta ngwaahịa emechara, a na-eji ihe mgbakwunye dị ka pigmenti na ihe ndị na-ejuputa na-agbasa n'otu n'otu, kwụsie ike ma na-enye mmetụta na-abawanye ụba. Enwere ike iji ya dị ka onye na-ekesa maka polymers nkwusioru dị ka styrene, acrylate, na propylene. A na-eji agba latex eme ihe nwere ike imeziwanye mkpụkọ na nhazi ọkwa. 2. N'ihe gbasara ịkụ mmanụ: A na-eji HEC eme ihe dị ka ihe na-eme ka ọkpụkpụ dị iche iche na-achọ maka ịkụ ala, nhazi nke ọma, nke ọma na-arụ ọrụ ciment na nbibi, ka apịtị ahụ wee nweta ezigbo mmiri na nkwụsi ike. Meziwanye ikike ibu apịtị n'oge a na-egwupụta mmiri, ma gbochie nnukwu mmiri ịbanye n'ime akwa mmanụ site na apịtị ahụ, na-eme ka ikike mmepụta nke oyi akwa mmanụ guzosie ike. 3. A na-eji ihe owuwu ụlọ na ihe owuwu ụlọ: N'ihi ikike ijide mmiri siri ike, HEC bụ ihe na-arụ ọrụ nke ọma na ihe nkedo maka ciment slurry na ngwa agha. Enwere ike ịgwakọta ya n'ime ngwa agha iji meziwanye mmiri na ịrụ ọrụ ihe owuwu, na ịgbatị oge ikuku mmiri, Mee ka ike mbụ nke ihe dị mma ma zere mgbawa. Ọ nwere ike imeziwanye njide mmiri ya na ike njikọta mgbe ejiri ya mee plasta, plasta bonding, na plasta putty. 4. Ejiri ya na ntacha eze: n'ihi nguzogide siri ike na nnu na acid, HEC nwere ike hụ na nkwụsi ike nke ntacha eze. Na mgbakwunye, ncha eze adịghị mfe nkụ n'ihi njigide mmiri siri ike na ikike emulsifying. 5. Mgbe a na-eji ink mmiri eme ihe, HEC nwere ike ime ka ink ahụ kpoo ngwa ngwa na enweghị ike ime ya. Tụkwasị na nke ahụ, a na-ejikwa HEC eme ihe n'ọtụtụ ebe na mbipụta textile na ịcha akwa, ịde akwụkwọ, kemịkalụ kwa ụbọchị na ihe ndị ọzọ. 6. Akpachara anya maka iji HEC: a. Hygroscopicity: ụdị niile nke hydroxyethyl cellulose HEC bụ hygroscopic. Ihe dị n'ime mmiri na-adịkarị n'okpuru 5% mgbe ị na-ahapụ ụlọ ọrụ mmepụta ihe, ma n'ihi njem njem dị iche iche na ebe nchekwa, ọdịnaya mmiri ga-adị elu karịa mgbe ị na-ahapụ ụlọ ọrụ ahụ. Mgbe ị na-eji ya, tụọ naanị ihe dị n'ime mmiri ma wepụ ibu nke mmiri ahụ mgbe ị na-agbakọ. Ekpughela ya na ikuku. b. Uzuzu uzuzu na-agbawa agbawa: ọ bụrụ na ntụ ntụ organic na hydroxyethyl cellulose ntụ ntụ dị n'ikuku n'otu akụkụ, ha ga-agbawakwa mgbe ha zutere ebe ọkụ. Ekwesịrị ime ọrụ kwesịrị ekwesị iji zere ntụ ntụ na ikuku dị ka o kwere mee. 7. Nkwakọ ngwaahịa: A na-eji akwụkwọ mpempe akwụkwọ-plastic composite akpa akpa nke polyethylene nke dị n'ime ya, nke nwere nha nha 25 n'arọ. Chekwaa n'ebe ikuku na-ekpo ọkụ na nkụ n'ime ụlọ mgbe ị na-echekwa, ma ṅaa ntị na mmiri. Lezienụ anya na mmiri ozuzo na nchekwa anyanwụ n'oge njem. Hydroxypropyl methyl cellulose, nke a na-akpọ (HPMC): hydroxypropyl methyl cellulose (HPMC) bụ ihe na-esi ísì ụtọ, enweghị ụtọ, ntụ ntụ na-adịghị egbu egbu, e nwere ụdị abụọ nke ngwa ngwa na nke na-abụghị ngwa ngwa, ngwa ngwa, mgbe mmiri oyi zutere, ọ ngwa ngwa. na-agbasasị wee pụọ n'ime mmiri. N'oge a, mmiri mmiri enweghị viscosity. Mgbe ihe dị ka nkeji 2 gachara, viscosity nke mmiri mmiri na-abawanye, na-akpụ a transperent viscous colloid. Ụdị na-adịghị ngwa ngwa: Enwere ike iji ya naanị na ngwaahịa ntụ ntụ dị ka putty ntụ ntụ na ciment mortar. Enweghị ike iji ya na gluu mmiri na agba, a ga-enwekwa mkpọ.
Oge nzipu: Dec-26-2022