Page 57 - Marix Technology

Nopco Chemical Co. (Newark, N. J.)

특별한 언급은 없지만, S&S 589 Red Ribbon filter paper가 좋은 것으로 나타났다.

20개의 첨가제에 대하여 0.25%와 0.5%에 대하여 실험하였으며, 그 중 6개는 water retention과
viscosity가 역으로 나타났다.
Table 6 Nopco Water Retention Data - 100% Polyvinyl Acetate

Binder Formulation a

Additive Water retention Viscosity
Code No. Name % b sec c cP d
- control 0.00 12 620
(1)? Methocel 90 HG DGS 0.25 30 4400
0.50 28 11500
(2)? Methocel 90 HG 0.25 32 2400
0.50 20 5000
3 Kelgin MV 0.25 31 4300
0.50 55 13500
6 Nopco DC-152-A 0.25 16 5000
0.50 18 13000
7 Modicol ND 0.25 28 1400
0.50 16 20000
8 Penford Gum 300 0.25 15 700
0.50 12 1200
9 Penford Gum 340 0.25 10 800
0.50 10 1000
(12)? CMC HV 0.25 35 18800
0.50 too viscous 60000
(13)? CMC LV 0.25 27 3050
0.50 38 5500
14 Acrysol ASE-60 0.25 14 11200
0.50 12 12000
15 Scripset 500 0.25 13 1800
0.50 15 3500
17 SS-1000 0.25 10 1000
0.50 13 1900
18 Gelva C-3 0.25 9 900
0.50 9 1300
19 Vinol 125 0.25 13 8800
0.50 too viscous 20000
22 Lemol 60-99 0.25 12 6000
0.50 17 10400
23 Polyco 296-N 0.25 15 8200
0.50 21 18000
24 Lemoflex 2913 0.25 14 1600
0.50 20 4300
26 Protovac PV-432 0.25 13 4000
0.50 12 7800
27 Protovac PV-430 0.25 10 1400
0.50 10 3300
28 Casein MN 0.25 8 1000
0.50 9 2300
- control 0 11 500

a 100% No.1 coating clay(predispersed). 18% National Resyn 1103 solids (PV acetate latex) on wt. of clay.
Total solids 60%. All colors adjusted to pH 9.0 with ammonia.
b Additive percentages based on clay, in addition to binder
c Water retention tests run using Blair-Baker electrical meter, and Scientific Machine cell. Tesrt paper was
S&S Red Ribbon No. 589 filter paper. Tests made at ambinient room temperature.
d Brookfield viscosity, 10rpm (Hercules rheograms available).