Usoro nnwale maka viscosity nke ntụ ntụ latex redispersible

Ka ọ dị ugbu a, ntụ ntụ latex a na-ejikarị eme ihe na ụwa gụnyere vinyl acetate na ethylene copolymer ntụ ntụ, ethylene, vinyl chloride na vinyl laurate ternary copolymer ntụ ntụ, vinyl acetate, ethylene na elu fatty acid vinyl ester ternary copolymer powder. Ntụ ntụ, atọ ndị a na-agbanwe agbanwe polymer powders na-achịkwa ahịa dum, karịsịa vinyl acetate na ethylene copolymer powder VAC / E, nke na-ebute ọnọdụ na-eduga na mpaghara ụwa ma na-anọchite anya njirimara teknụzụ nke redispersible polymer powder . 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 ngwa na mpaghara ihe owuwu bụ ihe kachasị;

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.

Usoro nchọpụta nke ike njikọta nke ntụ ntụ latex redispersible bụ nke e ji mara na usoro mkpebi bụ nke a:

1. Mbụ, were 5g nke redispersible latex ntụ ntụ ma tinye ya n'ime iko iko, tinye 10g nke mmiri dị ọcha ma kpalie maka nkeji 2 iji mee ka ọ gwakọta ya;

2. Mgbe ahụ ka iko agwakọta agwakọta guzoro maka nkeji 3, wee kpalie ọzọ maka nkeji 2;

3. Mgbe ahụ tinye ihe ngwọta niile n'ime iko ihe atụ na efere iko dị ọcha etinyere n'ahịrị;

4. Tinye iko efere n'ime DW100 ala okpomọkụ gburugburu ebe obibi ule ụlọ;

5. N'ikpeazụ, tinye ya n'okpuru ọnọdụ ịme anwansị gburugburu nke 0 Celsius C maka awa 1, wepụ efere iko ahụ, nwalee ọnụego mmepụta ihe nkiri, wee gbakọọ ike njikọ njikọ nke redispersible latex ntụ ntụ na-eji dị ka ihe nkiri akpụ ọnụego. .