N'ime afọ ndị na-adịbeghị anya, ọtụtụ resin polymer ntụ ntụ, mmiri siri ike na-eguzogide ọgwụ polymer ntụ ntụ na ndị ọzọ dị ọnụ ala polymer ntụ ntụ apụtawo n'ahịa iji dochie omenala VAE emulsion (vinyl acetate-etylene copolymer), nke a na-efesa-akpọnwụ na. mere nke recyclable polymer ntụ ntụ. A chụsasịrị polymer ntụ ntụ, yabụ kedu ihe dị iche n'etiti ntụ ntụ resin na ntụ ntụ na-agbanwe agbanwe, nwere ike resin ntụ ntụ dochie redispersible polymer ntụ ntụ? Ụlọ ọrụ teknụzụ Mortar ga-eduga gị ka ị nyochaa nkenke dị iche n'etiti abụọ maka ntụaka gị:
(1), polymer ntụ ntụ na-agbanwe agbanwe
Ka ọ dị ugbu a, polymer powders ndị a na-emegharị emegharị n'ọtụtụ ebe n'ụwa bụ: vinyl acetate na ethylene copolymer ntụ ntụ (VAC/E), ethylene, vinyl chloride na vinyl laurate ternary copolymer powder (E/VC/VL), acetic acid Vinyl ester, ethylene. na elu fatty acid vinyl ester ternary copolymer powder (VAC / E / VeoVa), atọ ndị a na-agbanwe agbanwe polymer powders na-achịkwa ahịa dum, karịsịa vinyl acetate na ethylene copolymer ntụ ntụ VAC / EE, na-anọ n'ọkwá na-eduga na mpaghara ụwa ma na-anọchite anya teknụzụ. njirimara nke redispersible polymer ntụ ntụ. Ngwọta teknụzụ kachasị mma n'ihe gbasara ahụmịhe teknụzụ na polymer etinyere na mgbanwe ngwa agha:
1. Ọ bụ otu n'ime polymer ndị a na-ejikarị eme ihe n'ụwa;
2. Ahụmahụ ngwa n'ọhịa nke ihe owuwu kacha;
3. Ọ nwere ike izute ihe ndị rheological chọrọ site na ngwa agha (ya bụ, ihe a chọrọ constructability);
4. The polima resin na ndị ọzọ monomers nwere àgwà nke ala organic volatile okwu (VOC) na ala mgbakasị gas;
5. Ọ nwere njirimara nke ezigbo nguzogide UV, ezigbo okpomọkụ na-adịgide adịgide na ogologo oge;
6. Nnukwu iguzogide saponification;
7. Ọ nwere iko mgbanwe okpomọkụ nso (Tg);
8. Ọ nwere dịtụ magburu onwe keukwu bonding, mgbanwe na n'ibu Njirimara;
9. Nwee ahụmịhe kachasị ogologo na mmepụta kemịkalụ nke otu esi emepụta ngwaahịa dị mma na ahụmịhe n'ịkwado nkwụsi ike nchekwa;
10. Ọ dị mfe ijikọta na colloid nchebe (polyvinyl mmanya) na arụmọrụ dị elu.
(2), ntụ ntụ resin
Ọtụtụ n'ime "resin" polymer ntụ ntụ na ahịa nwere ihe kemịkal DBP. Ị nwere ike ịlele mmebi nke ihe kemịkal a, nke na-emetụta ọrụ nwoke na nwanyị. A na-akwakọba nnukwu ego nke ụdị ntụ ntụ polymer a n'ụlọ nkwakọba ihe na ụlọ nyocha, ọ nwekwara ụfọdụ mgbanwe. N'ahịa Beijing, nke a ma ama maka ịba ụba nke "polymer powder", ugbu a, e nwere "polymer powder" nke a na-etinye n'ime ihe mgbaze nwere aha dị iche iche: nnukwu ike mmiri na-eguzogide mmiri polymer ntụ ntụ, resin polymer powder, wdg. Njirimara ndị a na-ahụkarị:
1. Ogbenye dispersibility, ụfọdụ na-eche mmiri, ụfọdụ na-eche flocculent (ọ kwesịrị ịbụ a porous ihe dị ka sepiolite), ụfọdụ na-acha ọcha na ubé akọrọ ma ka na-esi ísì ọjọọ;
2. Ọ na-esi ísì nke ukwuu;
3. Agbanyela ụfọdụ agba, na agba ndị na-apụta ugbu a bụ ọcha, odo, isi awọ, nwa, ọbara ọbara, wdg;
4. Ọnụ ego nke mgbakwunye dị ntakịrị, na ọnụ ọgụgụ nke mgbakwunye maka otu ton bụ 5-12 n'arọ;
5. Ike mmalite dị mma n'anya. Simenti enweghị ike n'ime ụbọchị atọ, na mkpuchi mkpuchi nwere ike imebi ma rapara;
6. A na-ekwu na bọọdụ XPS adịghị mkpa onye ọrụ interface.
Site samples enwetara ugbu a, ọ nwere ike kwubiri na ọ bụ ihe mgbaze dabeere resin adsorbed site ìhè porous ihe, ma soplaya chọrọ ụma zere okwu ahụ bụ "ihe mgbaze", ya mere a na-akpọ ya "polymer ntụ ntụ".
adịghị ike:
1. Mgbochi ihu igwe nke ihe mgbaze bụ nnukwu nsogbu. Na anyanwụ, ọ ga-ekupụ n'oge dị mkpirikpi. Ọbụna ma ọ bụrụ na ọ bụghị na anyanwụ, njikọ njikọ ga-agbaze ngwa ngwa n'ihi oghere oghere;
2. Nguzogide ịka nká, ihe mgbaze anaghị eguzogide okpomọkụ, onye ọ bụla maara nke a;
3. Ebe ọ bụ na usoro njikọ ahụ bụ ịgbari interface nke mkpuchi mkpuchi, n'ụzọ megidere nke ahụ, ọ na-ebibikwa njikọ njikọ. Ọ bụrụ na enwere nsogbu na nsogbu a na ọkwa ikpeazụ, mmetụta ahụ ga-egbu;
4. Enweghị usoro ntinye akwụkwọ na mba ọzọ. Site na ahụmịhe kemịkalụ tozuru oke na mba ofesi, ọ gaghị ekwe omume ịghara ịchọpụta ihe a.
nchịkọta:
Polymer ntụ ntụ nwere ike agbasa:
1. Ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe bụ mmiri na-edozi mmiri, nke bụ copolymer nke ethylene na vinyl acetate, na polyvinyl mmanya dị ka colloid nchebe.
2. VAE redispersible polymer powder nwere film-akpụ Njirimara, 50% aqueous ngwọta Nleta emulsion, na-etolite a plastic-dị ka ihe nkiri mgbe etinyere na iko maka 24 awa.
3. Ihe nkiri a kpụrụ akpụ nwere ụfọdụ mgbanwe na nguzogide mmiri. Ọ nwere ike iru ọkọlọtọ mba.
4. Redispersible polymer ntụ ntụ nwere nnukwu arụmọrụ: ọ nwere ikike njikọ dị elu, arụmọrụ pụrụ iche na arụmọrụ mmiri na-enweghị atụ, ike njikọ dị mma, na-enye ngwa agha na nguzogide alkali dị mma, ma nwee ike melite adhesion na flexural ike nke ngwa agha Na mgbakwunye na plasticity, na-eyi nguzogide. na ihe owuwu, ọ nwere ngbanwe siri ike na ngwa agha mgbochi mgbawa.
Resin ntụ ntụ:
1. Resin polymer ntụ ntụ bụ ihe ọhụrụ ụdị mgbanwe ngwaahịa maka polymer, resin, elu molecular polymer, na finely ala polymer ntụ ntụ.
2. Resin polymer ntụ ntụ nwere n'ozuzu anwụ ngwa ngwa, na-eyi nguzogide, ogbenye mgbasa, ụfọdụ na-eche flocculent (ọ kwesịrị a porous ihe dị ka sepiolite), na e nwere na-acha ọcha powders (ma nwere pungent isi yiri kerosene).
3. Ụfọdụ resin powders na-emebi emebi na osisi, na mkpuchi mmiri adịghị mma.
4. Mgbochi ihu igwe na nguzogide mmiri nke resin polymer powder dị ala karịa nke polymer ntụ ntụ. Iguzogide ihu igwe bụ nnukwu nsogbu. Na anyanwụ, ọ ga-ekupụ n'oge dị mkpirikpi. Ọbụna ma ọ bụrụ na ọ bụghị na anyanwụ, na bonding interface ga N'ihi na ọ bụ a oghere ewu, ọ ga-decompose ngwa ngwa.
5. Resin polymer ntụ ntụ enweghị moldability, hapụ naanị mgbanwe. Dị ka ụkpụrụ ule maka mkpuchi mkpuchi mgbidi dị n'èzí, ọ bụ naanị ọnụ ọgụgụ mmebi nke osisi polystyrene na-ezute ọkọlọtọ. Ihe ngosi ndị ọzọ erughị ọkọlọtọ.
6. Resin polymer ntụ ntụ nwere ike iji naanị maka ijikọ mbadamba polystyrene, a pụghịkwa iji ya mee ihe maka ijikọ beads vitrified na mbadamba ọkụ.
Oge nzipu: Feb-02-2023