Ubumenyi bwibanze bwifu ya polymer

1. Igitekerezo cyibanze

Ifu ya polymer isubirwamoni inyongera nyamukuru yifu yumye yiteguye kuvangwa na minisiteri nka sima cyangwa gypsumu.

Ifu ya redispersible latex ni polymer emulioni yumuti wumye kandi igateranyirizwa hamwe kuva 2um yambere kugirango ibe uduce duto twa 80 ~ 120um. Kuberako ubuso bwibice bisizwe hamwe nifu ya organic, idakomeye-irwanya-ifu, tubona ifu ya polymer yumye. Biroroshye cyane gusuka nisakoshi yo kubika mububiko. Iyo ifu ivanze n'amazi, sima cyangwa gypsumu ishingiye kuri gypsumu, irashobora gusubirwamo, kandi ibice by'ibanze (2um) birimo bizongera guhinduka leta ihwanye na latex y'umwimerere, bityo yitwa redispersible latex powder.

Ifite isubiranamo ryiza, irongera ikwirakwira muri emulsiyo ihuye namazi, kandi ifite imiti imwe nki ya emulsiyo yambere. Mugushyiramo ifu ya polymer ikwirakwizwa kuri sima cyangwa gypsumu ishingiye kumafu yumye yiteguye kuvangwa na minisiteri, ibintu bitandukanye bya minisiteri birashobora kunozwa, nka:

Kunoza gufatana hamwe no gufatanya na minisiteri;

Kugabanya kwinjiza amazi yibikoresho hamwe na moderi ya elastike y'ibikoresho;

Imbaraga zoroshye, kurwanya ingaruka, kurwanya abrasion hamwe nigihe kirekire cyibikoresho byongera imbaraga;

Kunoza imikorere yubwubatsi bwibikoresho, nibindi.

2. Ubwoko bwifu ya polymer

Kugeza ubu, porogaramu nyamukuru ku isoko irashobora kugabanywa gutatanya latex:

Vinyl acetate na Ethylene copolymer rubber ifu (Vac / E), Ethylene na vinyl chloride na vinyl laurate ternary copolymer rubber ifu (E / Vc / VL), vinyl acetate na Ethylene hamwe na aside irike cyane vinyl ester terpolymerisation Rubber ifu (Vac / E / VeoVa), vinyl acetate hamwe na aside irike ya vinyl ester copolymer rubber powder (Vac / VeoVa), ifu ya acrylate na styrene copolymer rubber (A / S), vinyl acetate na acrylate hamwe na aside irike cyane Vinyl ester terpolymer rubber powder (Vac / A / VeoVa), vinyl acetate homopolymer rubber ifu (PVac), styrene na butadiene copolymer rubber ifu (SBR), nibindi.

3. Ibigize ifu ya polymer itatanye

Ifu ya polymer itatanye mubisanzwe ni ifu yera, ariko bike bifite andi mabara. Ibigize birimo:

Polymer resin: Iherereye mubice byibanze byifu ya rubber, kandi nigice cyingenzi cyifu ya polymer isubirwamo.

Inyongera (imbere): hamwe na resin, ikina uruhare rwo guhindura resin.

Inyongeramusaruro (hanze): Ibikoresho byongeweho byongeweho kugirango turusheho kwagura imikorere yifu ya polymer itatanye.

Kurinda colloid: urwego rwibikoresho bya hydrophilique bipfunyitse hejuru yifu ya pisitori ya latx isubirwamo, colloid ikingira ifu ya latx isubirwamo cyane ni inzoga ya polyvinyl.

Umuti urwanya cake: wuzuza amabuye y'agaciro meza, akoreshwa cyane cyane kugirango abuze ifu ya reberi guteka mugihe cyo kubika no gutwara no koroshya urujya n'uruza rwa rubber (guta mumifuka yimpapuro cyangwa tankeri).

4. Uruhare rwifu ya polymer ikwirakwizwa muri minisiteri

Ifu ya redispersible latex ikwirakwizwa muri firime kandi ikora nkibikoresho bishimangira nkibikoresho bya kabiri;

Kurinda colloid yakirwa na sisitemu ya minisiteri (ntabwo izasenywa namazi nyuma yo gukora firime, cyangwa "ikwirakwizwa rya kabiri";

Polimeri ikora firime ikwirakwizwa muri sisitemu ya minisiteri nkibikoresho bishimangira, bityo bikongerera ubumwe bwa minisiteri;

5. Uruhare rwifu ya polymer ikwirakwizwa muri minisiteri itose:

Kunoza imikorere yubwubatsi;

Kunoza imitungo itemba;

Ongera thixotropy na sag irwanya;

kunoza ubumwe;