1. Ngwa ngwa nke cellulose ether
Cellulose ether maka owuwu bụ polymer na-abụghị ionic mmiri soluble nke isi mmalite ya bụ:
Cellulose (osisi pulp ma ọ bụ owu linter), halogenated hydrocarbons (methane chloride, ethyl chloride ma ọ bụ ndị ọzọ ogologo yinye halides), epoxy ogige (ethylene oxide, propylene oxide, wdg).
HPMC-Hydroxypropyl Methyl Cellulose Ether
HEC-Hydroxyethyl cellulose ether
HEMC-Hydroxyethyl Methyl Cellulose Ether
EHEC-Ethyl Hydroxyethyl Cellulose Ether
MC-methyl cellulose ether
2. Njirimara nke cellulose ether
Njirimara nke cellulose ethers dabere na:
Polymerization ogo DP Ọnụọgụ nke glucose — viscosity
Ndị nọchiri anya na ogo ha nke nnọchi, ogo nke edo edo nke nnọchi --ekpebi mpaghara ngwa
Nha urughuru —- sọlubility
Ọgwụgwọ n'elu (ya bụ mgbasa na-egbu oge) --oge viscosity metụtara uru pH nke sistemụ ahụ.
Ngozi mgbanwe--Melite nguzogide sag na ịrụ ọrụ nke ether cellulose.
3. Ọrụ cellulose ether - njide mmiri
Cellulose ether bụ ụdọ polymer nke mejupụtara nkeji β-D-glucose mejupụtara.Otu hydroxyl dị na molecule na oxygen atom na ether bond na-eme ka njikọ hydrogen na molecule mmiri, nke na-eme ka mmiri dị n'elu nke polymer yinye ma na-ekekọta ụmụ irighiri ihe.N'ime agbụ ahụ, ọ na-egbu oge evaporation nke mmiri ma na-etinye uche ya na oyi akwa isi.
Uru enyere site na njide mmiri nke cellulose ethers:
Ọ dịghị mkpa ka mmiri oyi akwa akwa, na-azọpụta usoro
ezi ihe owuwu
ike zuru oke
4. Ọrụ nke cellulose ether - mmetụta na-egbuke egbuke
Cellulose ether nwere ike ime ka njikọ dị n'etiti ihe ndị dị na gypsum gypsum mortar, nke na-egosipụta na mmụba nke nkwụsị nke ngwa agha ahụ.
Uru ndị bụ isi nke ethers cellulose na-enye bụ:
Belata ntụ ala
Mee ka adhesion na ntọala
Belata mgbochi nke ngwa agha
debe ngwa ngwa ọbụna
5. Ọrụ cellulose ether - ọrụ elu
Cellulose ether nwere hydrophilic otu (hydroxyl otu, ether bonds) na hydrophobic otu (methyl otu ethyl otu, glucose mgbanaka) na bụ surfactant.
(The elu esemokwu nke mmiri bụ 72mN / m, surfactant bụ 30mN / m, na cellulose ether bụ HPC 42, HPMC 50, MC 56, HEC 69, CMC 71mN / m)
Uru ndị bụ isi nke ọrụ elu nke cellulose ethers nyere bụ:
Mmetụta ikuku na-eme ka ikuku (nyochaa nke ọma, njupụta mmiri dị ala, modul ngbanwe dị ala, nguzogide friza)
Wetting (na-abawanye adhesion na mkpụrụ)
6. Ihe achọrọ nke gypsum plasta ọkụ maka cellulose ether
(1).Ezigbo njide mmiri
(2).Arụ ọrụ nke ọma, enweghị nri
(3).Ogbe scraping ire ụtọ
(4).Ike mgbochi sagging
(5).Okpomọkụ gel dị elu karịa 75 Celsius
(6).Ọnụọgụ mgbasa ngwa ngwa
(7).Ọ kacha mma ịnwe ike itinye ikuku ma mee ka ikuku ikuku dị na ngwa agha kwụsie ike
11. Otu esi achọpụta usoro onunu ogwu nke cellulose ether
Maka plasta plasta, ọ dị mkpa ijigide mmiri zuru oke na ngwa ngwa ogologo oge iji nwee ike ịrụ ọrụ nke ọma na iji zere mgbawa elu.N'otu oge ahụ, cellulose ether na-ejigide mmiri kwesịrị ekwesị ruo ogologo oge iji mee ka ngwa agha ahụ nwee usoro nhazi coagulation kwụsiri ike.
Ọnụ ọgụgụ nke cellulose ether dabere na:
Viscosity nke cellulose ether
Usoro mmepụta nke cellulose ether
Ọdịnaya nọchiri anya na nkesa Cellulose Ether
Nkesa nha nha nke cellulose ether
Ụdị na ngwakọta nke ngwa agha dabeere na gypsum
The mmiri absorption ike nke isi oyi akwa
Oriri mmiri maka Mgbasa Ọkọlọtọ nke Mortar dabere na Gypsum
Ịtọ oge ngwa ngwa dabere na gypsum
Ihe owuwu ihe owuwu na arụmọrụ ihe owuwu
Ọnọdụ ihe owuwu (dị ka okpomọkụ, ọsọ ifufe, wdg)
Usoro ihe owuwu (iji aka na-akpụcha ihe, ịgbasa igwe)
Oge nzipu: Jan-18-2023