Kedu otu esi anwale ntụ ntụ polima a na-agbanwe agbanwe RDP?

Usoro nnwale maka ihe onwunwe na viscosity nke ntụ ntụ polima redispersible RDP, A na-ejikarị ya n'ụwa niile iji gbasaa ntụ ntụ polima RDP na ntụ ntụ emulsion ethylene copolymerized, ethylene na vinyl chloride na lauric acid vinyl ester ternary copolymer ntụ ntụ, vinyl acetate na ethylene na senior fatty acid vinyl ester ternary copolymer ntụ ntụ, atọ ndị a iji gbasaa ntụ ntụ polima RDP n'ahịa dum, karịsịa ntụ ntụ vinyl acetate na ethylene copolymer VAC/E. Ọ na-anọ n'ọkwa kachasị elu n'ọhịa ụwa ma na-anọchite anya njirimara teknụzụ nke ntụ ntụ polima redispersible RDP.

Polima ntụ ntụ a na-emegharị emegharịRDP nwere ike njikọ pụrụ iche, na-eme ka mgbanwe nke ngwa agha dịkwuo mma ma nwee oge mmeghe dị ogologo, na-enye ngwa agha ezigbo alkaline, na-eme ka njikọ nke ngwa agha dịkwuo mma, na-eme ka ike flexural, na-egbochi mmiri, na-agbanwe agbanwe, na-eguzogide iyi na owuwu, na ngwa agha mgbochi mgbawa na-agbanwe agbanwe nwere ike ịgbanwe agbanwe.

Site na ahụmịhe teknụzụ nke polymer gbanwere site na ngwa agha, ọ ka bụ ngwọta teknụzụ ka mma:

1, RDP bụ otu n'ime polima ndị a na-ejikarị eme ihe n'ụwa.
2, Ahụmịhe sara mbara nke itinye n'ọrụ n'ihe gbasara owuwu ụlọ;

3, nwere ike imezu ihe achọrọ maka ihe onwunwe rheological nke ngwa agha (ya bụ, owuwu achọrọ);

4, ya na monomer polymer resin ndị ọzọ nwere obere ihe na-agbanwe agbanwe (VOC) na obere njirimara gas na-akpasu iwe;

5, nwere ezigbo iguzogide UV na ezigbo iguzogide okpomọkụ yana nkwụsi ike ogologo oge;

6, nwere nnukwu iguzogide saponification;

7, nwere oke okpomọkụ iko sara mbara (Tg);

8, nwere njikọ zuru oke, mgbanwe na njirimara igwe dị mma;

9, arụmọrụ dị mfe na nke yiri nke njikọta colloid nchebe (polyvinyl alcohol).

Usoro nchọpụta maka ike nrapado nke ntụ ntụ polima RDP nke a na-agbanwe agbanwe bụ nke e ji usoro ndị a chọpụta:

1, buru ụzọ were ntụ ntụ polima a na-agbagharị agbagharị RDP 5g n'ime iko nha iko, tinye 10g mmiri dị ọcha wee gwakọta ya ruo nkeji abụọ, mee ka ọ gwakọta nke ọma;

2. Debe iko nha agwakọtara maka nkeji atọ wee gwakọta ọzọ maka nkeji abụọ;

3. Tee ihe niile dị n'ime iko nha n'elu efere iko dị ọcha kwụ ọtọ;

4, tinye efere iko ahụ n'ime igbe nnwale DW100 dị ala na gburugburu ebe obibi;

5, emechaa tinye ya n'ọnọdụ ihe nlereanya gburugburu ebe obibi nke 0°C ruo otu awa, wepụ efere iko ahụ, nwalee ọnụego nhazi ihe nkiri ahụ, dịka mgbanwe ọnụego nhazi ihe nkiri nke ntụ ntụ polymer RDP nke a na-agbanwe agbanwe si dị na iji ike njikọ ọkọlọtọ.