Focus on Cellulose ethers

Itumọ ati ohun elo ti awọn afikun ti a lo nigbagbogbo ni amọ lulú gbigbẹ

A. Redispersible latex lulú
Iwọn lilo 1-5%
Itumọ ohun elo:
Resini thermoplastic lulú ti a gba nipasẹ sokiri-gbigbe awọn emulsion polima molikula giga ati sisẹ to tẹle

Awọn oriṣi akọkọ:
1. Fainali acetate ati ethylene copolymer lulú (VAC/E)
2. Terpolymer roba lulú ti ethylene, fainali kiloraidi ati fainali laurate (E/VC/VL)
3. Terpolymer roba lulú ti fainali acetate, ethylene ati giga fatty acid vinyl ester (VAC/E/VeoVa)

Lilo ẹya ara ẹrọ:
1. Mu isokan pọ si (didasilẹ fiimu)
2. Mu isokan pọ si (isopọmọra)
3. Mu irọrun pọ si (irọrun)

B. Cellulose ether
Iwọn iwọn 0.03-1%, iki 2000-200,000 Mpa.s
Itumọ ohun elo:
Ti a ṣe ti awọn okun adayeba nipasẹ itu alkali, ifasilẹ grafting (etherification), fifọ, gbigbe, lilọ ati awọn ilana miiran

Awọn oriṣi akọkọ:
1. Methyl hydroxyethyl cellulose ether (MC)
2. Methyl hydroxypropyl cellulose ether (MC)
3. Sodium carboxymethyl cellulose (CMC)

Lilo ẹya ara ẹrọ:
1. Idaduro omi
2. Sisanra
3. Mu mnu agbara
4. Mu ikole iṣẹ

C. Starch ether
Iwọn 0.01-0.1%

Itumọ ohun elo:
Le ni ipa lori aitasera ti awọn amọ-lile ti o da lori gypsum / simenti ati orombo wewe / yi iṣiṣẹ ṣiṣẹ ati resistance sag ti awọn amọ.

Awọn oriṣi akọkọ:
Nigbagbogbo a lo ni apapo pẹlu ether cellulose

Lilo ẹya ara ẹrọ:
1. Sisanra
2. Mu ikole
3. Anti-sagging
4. isokuso resistance

D. Hydrophobic lulú
Iwọn 0.2-0.3%

Itumọ ohun elo:
Awọn polima ti o da lori Silane

Awọn oriṣi akọkọ:
1. Fatty acid irin iyọ
2. Hydrophobic roba lulú Hydrophobic / hydrophobic

E. Crack-sooro okun
Iwọn 0.2-0.5%

Itumọ ohun elo:
Apapo pẹlu polystyrene/polyester gẹgẹbi ohun elo aise akọkọ sinu iru tuntun/okun-sooro kiraki fun kọnja ati amọ / ti a pe ni “imurasilẹ ti ile-ẹkọ giga” ti nja.

Awọn oriṣi akọkọ:

1. Alkali-sooro gilasi okun
2. Okun Vinylon (okun PVA)
3. Okun polypropylene (okun PP)
4. Okun akiriliki (okun PAN)

Lilo ẹya ara ẹrọ:

1. Crack resistance ati toughening
2. mọnamọna resistance
3. Di ati ki o Thaw resistance

F. Okun igi
Iwọn 0.2-0.5%

Itumọ ohun elo:
Adayeba okun insoluble ninu omi ati Organic olomi / o tayọ ni irọrun / dispersibility

Awọn oriṣi akọkọ:
Igi okun gigun ni gbogbo 40-1000um/ le ṣee lo ni gbẹ lulú amọ

Awọn ẹya ara ẹrọ
1. Crack resistance
2. Imudara
3. Anti-ikele

G. Omi atehinwa oluranlowo
Iwọn lilo 0.05-1%
Afikun ti o le dinku iye dapọ omi labẹ ipo ti mimu aitasera ti amọ-lile ni ipilẹ kanna.
1. Aṣoju ti o dinku omi deede
2. Dinku omi ti o ga julọ
3. Tete agbara superplasticizer
4. Retarding superplasticizer
5. Air-entraining omi idinku
Retarding ga-ṣiṣe superplasticizer Din omi agbara / mu awọn iwapọ ti amọ / nja.

H. Defoamer
Iwọn 0.02-0.5%
Iranlọwọ lati tusilẹ awọn nyoju afẹfẹ ti o wa ni idẹkùn ati ti ipilẹṣẹ lakoko idapọ amọ-lile ati ikole / mu agbara imudara pọsi / ilọsiwaju ipo oju
1. Polyols
2. Polysiloxane (1. lati ti nwaye foomu; 2. lati dena isọdọtun ti foomu)

I. Aṣoju agbara tete
Iwọn 0.3-0.7%
kekere otutu tete coagulant
kalisiomu kika
Mu iyara lile simenti pọ si, mu agbara tete pọ si

J. Polyvinyl oti
A omi-tiotuka film-lara nkan abuda
Polyvinyl oti lulú
PVA 17-88 / PVA 24-88
1. imora
2. Fiimu Ibiyi
3. Ko dara omi resistance
Lo fun inu ati ita odi putty, ni wiwo oluranlowo, ati be be lo.


Akoko ifiweranṣẹ: Mar-23-2023
WhatsApp Online iwiregbe!