Mineral fillers for P&C production

Transcription

1 Baikal Minerals 1 Mineral fillers for P&C production Ukraine, 2012

2 World production of minerals (prognosis evaluation, 2010, bln tons) 2 Sand and gravel 5-6 Plaster, lime, concrete 3-4 Non-metallic minerals 1-2 Stone Metallic minerals 4-5

3 Influence of mineral properties on P&C properties 3 Particle shape Physical properties Mineral composition Impurities ph Oil absorption power Grain size classification Plasticity, elasticity Increased strength Non-transparency Moisture resistance and hygroscopic property Mechanical durability Pressure durability Wearability Abrasive wear of equipment Surface texture Adsorption Adhesion Temperature resistance and atmospheric durability Whiteness and brightness Sedimentological durability Hygienic and ecological safety Corrosive resistance Chemical resistance Compatibility with other components Rheological properties Regulation of gloss Coverage rate Dispersive ability

4 4 Interconnection of mineral properties and P&C properties P&C properties Calcite Barite Kaoline Dolomite Talc Mica Quartz Wollastonite Regulation of gloss Cracking resistance Regulation of rheological properties Mechanical durability Moisture resistance Corrosive resistance Chemical resistance Atmospheric durability

5 Influence of talc on P&C properties таlc 5 Softness -Excellent grinding - Low abrasive wear of equipment Si O OH Mg Chemical resistance and hydrophobic property Platelike particle shape - Corrosive resistance - Improvement of appearance - Wearing life - Excellent coverage rate - Low water permeability - Hardening properties Talc one of the most popular mineral products at the mineral commodity market that is used in different areas by numerous industrial branches. Its unique role is defined by platelike particle shape and peculiar properties of crystalline structure. One of the most important properties softness and high whiteness, organophility and hydrophobic property, chemical stability, high temperature resistance and low electrical conductivity.

6 Talc advantages in different types of P&C 6 In alkyd P&C Increase of atmospheric and moisture durability Strengthening chemical and corrosive resistance Regulation of viscosity of compositions Regulation of coating mattness Provision of high coverage rate Increase of atmospheric and moisture durability Strengthening mechanical properties of coatings Improvement of rheological characteristics In water-based P&C

7 Deposits of talc ores are quite plentiful in the world but monomineral talc compositions occur rarely. 7 Pure talc Talc combined with other minerals

8 8 Basic talc deposits in Russia Svetlozersk Rybozersk Ignoyla Talc-steatite Talc-magnesite Talc-tremolite Syrostansk Shabrovsk Miassk Alguysk Kirgiteysk Onotsk

9 Diversity of talc ores Theoretical composition of talc 4.8% 63.5% 31.7% H 2 O SiO 2 MgO 9 Talc Steatite Onotsk deposit Talc- tremolite Alguysk and Kirgiteysk deposits Talc-magnesite Shabrovsk, Miassk, Bashkirsk and Karelsk deposits

10 Company Baykal Minerals developer of Onotsk talc-steatite deposit 10

11 Test results of alkyd enamels and coatings on their basis 11 Indicator w/o microtalc With use of microtalc Talcon Т-20 Talcon ММ-20 Viscosity of enamels by a cup VZ-4, с Dispersity on device Klin, mcm Coefficient of brightness on device FOW Impact strength of PC UV-radiation resistance (5 hours., lamp DRT-400) Enamel drainage Yellowing 6 х 3.5 sm No yellowing 1 х 0.5 sm no Water resistance % blisters in 1 day % blisters in 2 days

12 Test results of water fillings 12 Optimum quantity of microtalc ММ-40 in filling % Optimum balance of fillers in filling (from full weight of fillers in a formula) Microtalc 6 7 % Chalk % Microcalcite % Filling not containing talc Filling containing microtalc, Talcon MM-40

13 Application effect of microtalc in production of fillings 13 Giving thixotropic properties to compositions High plasticity and easiness of applying Improved smoothing ability Excellent grindability Low shrinking deformation Advanced barrier properties Excellent atmospheric and moisture durability Coating breathes and does not form cracks

14 Test results of wash primers with 10-% change of calcite by microtalc 14 For internal works Frontal Concretecontact On calcite Talcon ММ- 20 On calcite Talcon ММ- 20 On calcite Talcon ММ-20 Degree of grinding, mcm Water absorption of free films, % - in 24 hours Loss of weight of film in water in 24 hours, % 11,4 11,2 11,4 11, ,7 0,7 1,1 1,0 - - Flaking in storage, % ,1 2,9 Water resistance, 24 hours Brookfield viscosity at 1 rpm/sec, spindle 4, мpa*s Precipitation pattern dense loose dense loose dense loose

15 Crawling primers and density of layer 15 Primer on calcite Primer with 10% of talc ММ-20

16 16 Application effect of microtalc in production of wash primers Improvement of technological, ornamental and protective properties of materials Increase of sedimentological durability Decrease of crawling Optimization of rheological characteristics Preservation of low production price

17 Test results of water-dispersive masonry paints with different kinds of filling 17 Calcite 10% Talcon Т-20 5% Talcon Т % Talcon ММ-10 Whiteness Viscosity according to VZ-4, с Degree of grinding, mcm Coverage rate of dried-up film, г/м Loss of film weight in water in 24 h, % 0,7 0,3 0,3 Water resistance, 24 hours. > 5 > 5 > 5 Flaking, % Maximum thickness of layer without burrs with viscosity 40 с on VZ-4, mcm Deposit dense loose light

18 Crawling test of masonry paint 18 Paint containing mixture of calcite and chalk Paint containing mixture of calcite, chalk and microtalc Talcon T-20 Paint containing mixture of calcite, chalk and microtalcs Talcon T-20 and Talcon MM-10 T-20

19 19 Application effect of microtalc in production of water-dispersive paints and enamels Improved protective properties High atmospheric and moisture durability of coatings Increased strength of coatings Regulation of mattness and viscosity of compositions High coverage rate and effective use of pigment Improved rheological characteristics Low crawling when applying, crack formation prevention