Ihe omuma ihe omuma nke uzuzu polymer dispersible

1. isi echiche

Polima ntụ ntụ na-agbanwe agbanwebụ isi ihe mgbakwunye maka akọrọ ntụ ntụ njikere-ngwakọta ngwa agha dị ka ciment dabeere ma ọ bụ gypsum dabeere.

Redispersible latex ntụ ntụ bụ emulsion polymer nke a na-efesa na-agbakọta ma gbakọta site na 2um mbụ iji mepụta akụkụ okirikiri nke 80 ~ 120um.N'ihi na a na-ekpuchi elu nke ihe ndị ahụ na inorganic, ntụ ntụ na-eguzogide siri ike, anyị na-enweta ntụ ntụ polymer akọrọ.Ha dị oke mfe ịwụsa na akpa maka nchekwa n'ụlọ nkwakọba ihe.Mgbe a na-agwakọta ntụ ntụ na mmiri, ciment ma ọ bụ ụrọ dabeere na gypsum, ọ nwere ike ịgbasa ya, na ihe ndị bụ isi (2um) n'ime ya ga-emezigharị n'ime steeti kwekọrọ na latex mbụ, ya mere a na-akpọ ya redispersible latex powder.

Ọ nwere ezi redispersibility, re-agbasasị n'ime emulsion na kọntaktị na mmiri, na nwere kpọmkwem otu chemical Njirimara dị ka mbụ emulsion.Site n'ịgbakwunye ntụ ntụ polymer na-agbasasị na ciment dabeere ma ọ bụ gypsum ntụ ntụ ntụ ntụ njikere agwakọta ngwa agha, a pụrụ imeziwanye ihe dị iche iche nke ngwa agha ahụ, dị ka:

Mee ka adhesion na njikọ nke ngwa agha dịkwuo mma;

Belata mmịpụta mmiri nke ihe na ihe na-agbanwe agbanwe nke ihe;

Ike mgbanwe, nkwụsi ike mmetụta, nguzogide abrasion na ịdịte aka nke ihe nkwado;

Melite arụmọrụ ihe owuwu ihe, wdg.

2. Ụdị polymer powders na-ekesa

Ka ọ dị ugbu a, enwere ike kewaa ngwa ngwa ndị dị na ahịa n'ime latex gbasaa:

Vinyl acetate na ethylene copolymer roba ntụ ntụ (Vac / E), ethylene na vinyl chloride na vinyl laurate ternary copolymer roba ntụ ntụ (E / Vc / VL), vinyl acetate na ethylene na elu fatty acid vinyl ester terpolymerization Rubber ntụ ntụ (Vac / E /). VeoVa), vinyl acetate na elu fatty acid vinyl ester copolymer rubber powder (Vac/VeoVa), acrylate na styrene copolymer roba ntụ ntụ (A/S), vinyl acetate na acrylate na elu fatty acid Vinyl ester terpolymer roba ntụ ntụ (Vac/A/). VeoVa), vinyl acetate homopolymer roba ntụ ntụ (PVac), styrene na butadiene copolymer roba ntụ ntụ (SBR), wdg.

3. Ngwakọta nke ntụ ntụ polymer na-ekesa

Polima powders na-agbasasị na-abụkarị ntụ ntụ, mana ole na ole nwere agba ndị ọzọ.Ihe mejupụtara ya gụnyere:

Polymer resin: Ọ dị n'ime akụkụ bụ isi nke uzuzu uzuzu rọba, ọ bụkwa akụkụ bụ isi nke uzuzu polymer redispersible.

Ihe mgbakwunye (ime): yana resin, ọ na-arụ ọrụ nke imezi resin.

Ihe mgbakwunye (mpụta): A na-agbakwunye ihe ndị ọzọ iji gbasaa arụmọrụ nke ntụ ntụ polymer na-ekesa.

Colloid na-echebe: oyi akwa nke ihe hydrophilic nke a fụchiri n'elu ihe mkpofu latex na-agbanwe agbanwe, colloid nchebe nke ọtụtụ ntụ ntụ latex na-emegharị bụ mmanya polyvinyl.

Onye na-eme ihe na-eme ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-eme ka ọ dị mma, nke a na-ejikarị egbochi ntụ ntụ rọba ka ọ ghara ime ya n'oge nchekwa na njem na iji mee ka ọ na-eruba ntụ ntụ rọba (na-esi na akpa akwụkwọ ma ọ bụ tankị).

4. Ọrụ nke polima ntụ ntụ na-ekesa na ngwa agha

A na-agbasasị ntụ ntụ latex na-agbanwe agbanwe n'ime ihe nkiri ma na-arụ ọrụ dị ka onye na-eme ka ọ dị ike dị ka nrapado nke abụọ;

A na-etinye colloid nchebe site na usoro ngwa agha (agaghị emebi ya na mmiri mgbe emechara ihe nkiri, ma ọ bụ "mgbasa nke abụọ";

A na-ekesa resin polymer nke na-emepụta ihe nkiri n'ime usoro ngwa agha dị ka ihe na-eme ka ọ dịkwuo ike, si otú ahụ na-abawanye njikọ nke ngwa agha;

5. Ọrụ nke dispersible polymer ntụ ntụ na mmiri ngwa agha:

Melite arụmọrụ ihe owuwu;

Meziwanye ihe ndị na-asọ asọ;

Mmụba thixotropy na sag iguzogide;

meziwanye njikọta;