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Surface Science and Adhesion in Cosmetics


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-0.1 ± 1.3 13.7 ± 7.6 hydrated 31.5 ± 6.0 33.4 ± 3.8 -1.9 ± 4.9 -0.2 ± 0.6 15.0 ± 8.2 abraded 32.9 ± 4.8 37.0 ± 4.0 -4.0 ± 5.4 -0.1 ± 1.4 15.4 ± 9.2

Monomer Conc. Gel fraction Surface gloss Microhardness
GF GF0 AGF*/GF0 x 100 G G0 AG**/G0 x 100 HV HV0 AHV***/HV0 x 100
% % % % GU GU % MPa MPa %
1 TBCHA 30 97,4 98,0 0,61 46 68 32 104 144 38
2 TBCHA 40 94,0 94,1 0,11 51 72 29 69 83 20
3 EGDMA 30 98,5 99,3 0,81 47 59 20 204 281 38
4 EGDMA 40 96,4 98,9 2,53 47 57 18 220 314 43
5 THFA 30 96,0 96,3 0,31 59 73 19 25 47 88
6 THFA 40 95,7 96,7 1,03 54 61 11 28 32 14
7 HPMA 30 97,0 97,6 0,61 50 63 21 99 151 53
8 HPMA 40 95,0 99,9 4,90 43 58 26 65 134 106

      * AGF = (GF0 – GF)

      ** AG = (G0 – G)

      *** AHV = (HVQ – HV)

      **** Characteristics in bold are in required range of close to that