Indima ye-hydroxypropylylylylylyl ether (HPS) e-wonga

I-Starch Ether yigama elijwayelekile lekilasi lezinkanyezi eziguquliwe eziqukethe ama-etherther amabhondi ku-molecule, eyaziwa nangokuthi i-etherified starch, esetshenziswa kabanzi kwezokwelapha, ukudla kwamakhemikhali, amakhemikhali kanye nezinye izimboni. Namuhla sichaza ikakhulukazi indima yeStamch Ether oDinga.

Isingeniso ku-Starch Ether

Okuvame kakhulu futhi okusetshenziswa kakhulu yi-Starch yamazambane, isitashi se-tapioca, isitashi sommbila, isitashi sikakolweni, njll. Uma kuqhathaniswa nesitashi esingu-Cereal esinokuqukethwe okuphezulu kwamafutha kanye namaprotheni, isitashi sezithelo zezimpande ezinjenge-potato ne-tapioca umsulwa kakhulu.

Isitashi yi-polysaccharide macroolecular compound ehlanganiswa i-glucose. Kunezinhlobo ezimbili zama-molekyuli, ama-linear kanye nama-branlose, abizwa nge-amylose (cishe ama-20%) ne-amylopectin (cishe ama-80%). Ukuze uthuthukise izakhiwo zesitashi ezisetshenziswa ezintweni zokwakha, izindlela zomzimba nangamakhemikhali zingasetshenziswa ukuzoyiguqula ukwenza izakhiwo zayo zilungele izinhloso ezahlukahlukene zezinto zokwakha.

Isitashi esine-etherified sihlanganisa izinhlobo ezahlukahlukene zemikhiqizo. Njenge-carboxymetylyl ether (CMS), i-hydroxypropylyl starch ether (HPS), i-hydroxyyethyl starch ether (hes), i-cationy starch ether, njll.

Indima ye-hydroxypropylyl starch ether

1) Uqiniswe ngodaka, wandise i-anti-sagging, anti-sagging kanye nezakhiwo zembobo zodaka

Isibonelo, ekwakhiweni kwe-tile adhesive, uPuture, nodaka oluphambayo, ikakhulukazi manje leso sifafaza ngomshini sidinga uketshezi oluphezulu, okubaluleke kakhulu (kubaluleke kakhulu ngodaka (okubaluleke kakhulu ngomshini kudinga ukugcwala okukhulu, kuzokwenza ukuthi i-sína i-ether, i-ether starch ingakha lokhu kusweleka lokhu).
I-Fluidity kanye nokumelana kwe-sag kuvame ukungqubuzana, futhi ukwandiswa okwengeziwe kuzoholela ekunciphiseni ekumelaneni kwe-sag. Udaka nezinto ezimbongiwe kahle kungakuxazulula kahle lokho kungqubuzana, okungukuthi, lapho kufakwa amandla angaphandle, ukuhlakanipha kuyancipha, ukuthuthukisa ukusebenziseka nokuphazamiseka, futhi lapho amandla angaphandle ahoxiswa, ukumelana kwangaphandle kuyathuthukiswa.
Ngomkhuba wamanje wendawo eyandayo yethayela, engeza isitashi ether kungathuthukisa ukumelana kwesilayidi kwe-tile anamathelayo.
2) amahora wokuvula anwetshiwe
Okwezinhloso ze-tile, kungahlangabezana nezidingo zama-adhesives akhethekile we-tile (class e, 20min enwetshelwa ku-30min ukufinyelela ku-0.5mpa) edlulisela isikhathi sokuvula.

Izakhiwo Ezithuthukisiwe Zaphezulu

I-Starch Ether ingenza ingaphezulu le-gypsum base kanye nosimende ngodaka olubushelelezi, kulula ukuzisebenzisa, futhi lunomphumela omuhle wokuhlobisa. Kunenjongo kakhulu ngodaka oluphamba kanye nodaka olunqenqemeni oluncane olufana ne-putty.
Indlela yokwenza kwe-hydroxypropylylylyl starch ether

Lapho isitashi i-ether sincibilika emanzini, izohlakazwa ngokufana ohlelweni lodaka lukasimende. Njengoba i-starch ether molecule inesakhiwo senethiwekhi futhi ithweswe kabi, izodonsa izinhlayiya zensimbi efanelekile futhi isebenze njengebhuloho lenguquko ukuze ixhume usimende, ngaleyo ndlela inikeze inani elikhudlwana lesivuno se-slurry noma i-anti-slip umphumela.
Umehluko phakathi kwe-hydroxypropylyl starch ether ne-cellulose ether

1. Isitashi ether singathuthukisa ngempumelelo nge-anti-sag nezakhiwo ezi-anti-slip zodaka

I-Celsulose Ether imvamisa ingathuthukisa ukubonwa nokugcinwa kwamanzi kuphela kodwa ayikwazi ukuthuthukisa izakhiwo ezilwa nokulwa nokulwa.

2. Ukuqina nokubonakala

Ngokuvamile, ukubonakala kwe-cellulose ether kumayelana namashumi ezinkulungwane, kuyilapho ukubonakala kwesitashi ether kuyizinkulungwane eziningana kunamakhulu amaningana, kepha lokhu akusho ukuthi impahla ekhuphuka ye-starch ether kuya ku-cellulose ether, futhi inqubo yokuqina yalokhu ihlukile.

3. Ukusebenza ngokulwa

Uma kuqhathaniswa nezitha ze-cellulose, izithambisi zeStarch zingakhulisa kakhulu inani lesivuno sokuqala sezinhloso ze-tile, ngaleyo ndlela zithuthukise izakhiwo zazo zokulwa nama-slip.

4. Ukungena komoya

I-Cellulose Ether inendawo eqinile yokungena komoya, kanti isitashi i-Ether ayinalo impahla engenela umoya.

5. Ukwakheka kwamangqamuzana we-cellulose ether

Yize zombili isitashi kanye ne-cellulose zihlanganiswa ama-molekyuli we-glucose, izindlela zabo zokwakhiwa zihlukile. Ukuqondiswa kwawo wonke ama-molecule kashukela e-Starch kuyafana, ngenkathi lokho ku-cellulose kumane nje kuphambene, futhi ukuma kwe-molecule ngayinye ye-glucose esondelene nakho kuphambene. Lo mehluko wesakhiwo uphinde anqume umehluko ezindaweni ze-cellulose kanye nesitashi.