calcium carbonate - Imerys Performance Minerals

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Portfolio for Rubber
IMERYS
PERFORMANCE
MINERALS
CALCIUM
CARBONATE
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IMERYS IS THE WORLD’S LARGEST PRODUCER OF WHITE INDUSTRIAL
MINERALS, WITH A NETWORK OF PLANTS ACROSS SIX CONTINENTS,
INCLUDING MAJOR PRODUCTION SITES IN THE UK, BELGIUM, ITALY, FRANCE,
TUNISIA, TURKEY, USA, BRAZIL, MALAYSIA, AUSTRALIA, JAPAN AND CHINA.
IMERYS SUPPLIES MINERALS TO A WIDE RANGE OF INDUSTRIES,
INCLUDING POLYMERS, PAINT, PAPER AND CERAMICS. SPECIALIST DIVISIONS
SERVE EACH INDUSTRY, SO THAT OUR CUSTOMERS ALWAYS DEAL WITH
PEOPLE WHO UNDERSTAND THEIR BUSINESS. THIS IS SUPPORTED BY AN
ABSOLUTE COMMITMENT TO QUALITY, TO ENSURE THE CONSISTENCY
AND RELIABILITY OF OUR PRODUCTS AND SERVICES.
IMERYS is a major supplier of calcined kaolins,
silane treated calcined kaolins, hard and soft
kaolins, and both untreated and surface-treated
calcium carbonates to the European and global
rubber industries. Strong technical understanding
of our products and their rubber-based applications
complements the natural value of the minerals
we supply.
IMERYS investment in product and application
development is a clear commitment to our
customers in the rubber industry.
IMERYS has a proven history of close technical
collaboration with compounders and processors
that has lead to an in-depth understanding of the
mineral requirements of the rubber industry.
Our industry focused team is dedicated
to providing innovative commercial and
technical solutions to our customers.
Our European product and application
development laboratories in the UK are
well equipped and staffed to meet the
technical requests of our customers.
Our technical personnel have an established
track record in the development of products
for the rubber industry and an in-depth
understanding of minerals for
polymer applications.
Key Applications:
Micronic S
RUBBER
Can be used
Queensfil 25
IMERYS
PERFORMANCE
MINERALS
Recommended
Cable Insulations
Cable Sheath
Hose
Footware
Flooring
Pharmaceuticals
Seals / Gaskets
Tyres
Processing:
Extrusion
Moulding
Calendering
85.5
6.0
12
36
0.2
3.2
2.6
18
570
1130
81
7.0
10
38
0.2
3.0
2.0
19
480
990
Typical Properties:
Brightness
(ISO R457)
Yellowness
+10 μm (mass % max.)
- 2 μm
(mass %)
Moisture (mass % max.)
d50
(μm)
Surface Area
(BET; m2/g)
(g/100g)
Oil absorption
(kg/m3)
Aerated Powder Density
(kg/m3)
Tapped Powder Density
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Calcium Carbonate
Calcium carbonates are usually composed
of the crystalline mineral, calcite, which occurs
in the form of chalk, marble or limestone.
Chalk is fine textured and varies in hardness
and colour from deposit to deposit. Most
often it originated as the shells of microscopic
sea organisms. Marble deposits are limestones
changed by crystallisation under conditions
of extreme heat and pressure. In some cases,
this natural process yields white marble of
exceptional brightness and purity, such as
the famous deposits at Carrara, Italy.
Fine ground calcium carbonate is used in
a wide range of polymer applications as an
extender, to improve rheological properties
of the compounds. Some fine products are
treated with a stearate coating to ease
handling and improve dispersion.
IMERYS is a leading producer of high quality
calcium carbonates and has production sites
throughout the world.
Calcium Carbonate
Typical Properties:
Specific Gravity
Refractive Index
Mohs hardness
2.7
1.65 / 1.48 (birefringent)
3.0
UNCOATED CALCIUM CARBONATE
Micronic O
Micronic P
ImerCarb 1L
ImerCarb 2L
ImerCarb 5L
ImerCarb 10L
Carbital 110
Carbital 115
Carbital 120
Carbital 130
Carbital 140
78
7.5
12
38
0.2
3.0
2.0
19
480
990
75
7.5
15
38
0.2
3.0
2.0
19
480
990
93.5
1.5
1.0
55
0.2
1.7
4.0
21
570
1130
93
1.5
1.5
40
0.2
2.5
3.5
19
530
1100
92
1.5
25
22
0.2
5.0
2.5
16
590
1080
92
2.0
30
16
0.2
7.0
2.0
15
620
1190
95
1.1
1.5
52
0.2
2.0
5.0
18
580
1030
94.2
1.1
9.0
40
0.2
2.8
3.3
18
730
1110
94
1.1
25
32
0.2
3.5
3.0
16
660
1220
93.5
1.5
30
30
0.2
5.0
2.0
16
710
1250
92.5
1.7
50
15
0.2
10.0
1.4
17
780
1480
Please note that the properties quoted within
this document are typical properties only and
do not constitute a specification.
IMERYS produce a wide range of ground
Calcium carbonate, with different brightness
and particle size distribution.
Listed grades (or similar), coated with stearic
acid, are also available.
GCC in rubber is used an extender in order to
improve the rheology and the processability
of the compounds and to reduce the cost of
the formulation.
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IMERYS
PERFORMANCE
MINERALS
RUBBER
PMP004/C August 2007 1M/SAP Third Edition, Design: sheardhudson.com – ©IMERYS Performance Minerals
IMERYS Performance Minerals
Par Moor Centre, Par Moor Road
Par, Cornwall, England PL24 2SQ
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+44 (0)1726 818000
+44 (0)1726 811200
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