CH HYPERDISPERSANT STRUCTURE & PRORERTIES SHANGHAI SANZHENG
POLYMER MATERIAL Co.,LTD
Slide 2
DISPERSING PROCESS OF PIGMENTS s 1) WETTING L/S INTERFACE--S/G
INTERFACE s 2) DEAGGLOMERATION BREAKAGE & REAGGLOMERATION s 3)
STABILIZATION REMAINING PARTICLE SIZE & ITS DISTRIBUTION
Slide 3
MECHANISM OF DISPERSION STABILIZATION s ELECTROSTATIC
STABILIZATION DOUBLE--LAYER THEORY s STERIC STABILIZATION OSMOTIC
REPULSION THEORY ENTROPIC REPULSION THEORY
Slide 4
DEEFFICIENCY OF CLASSICAL SURFACTANTS s HYDROPHILIC GROUP NOT
DESIGNED FOR PIGMENT SURFACE, EASY TO DESORB s HYDROPHOBIC GROUP
NON-POLAR STRUCTURE INCOMPATIBLE WITH POLAR MEDIA 18 CARBON ATOMS,
TOO SHORT
Slide 5
MOLECULAR STRUCTURE OF CH HYPERDISPERSANTS PARTICLE Anchoring
Group Solvatable Chain
Slide 6
ANCHORING GROUP s DESIGNED FOR PIGMENT SURFACE STRONG POLARITY
SURFACE SINGLE-SPOT CHEMICAL BONDING WEAK POLARITY SURFACE
MULTI-SPOT HYDROGEN BONDING NON-POLAR PIGMENT SURFACE SURFACE
SYNERGIST
Slide 7
SOLVATABLE CHAIN s MONO-FUNCTIONAL TERMINAL s JUSTABLE
COMPATIBILITY MONOMER STRUCTURE MONOMER RATIO SOLVATABLE CHAIN
POLARITY s LENGTH OF SOLVATABLE CHAIN CONTROLLED MOLECULAR WEIGHT
ADEQUATE CHAIN LENGTH
ADSORPTION PROPERTIES OF HYPERDISPERSANT Rehacek Method Ca Ce
tg=Ma Xap MaCa
Slide 10
(Mn=700) (Mn=1500) (Mn=700) (Mn=1500)
Slide 11
RHEOLOGICAL PROPERTIES OF THE DISPERSION WITH HYPERDISPERSANT
Viscosity-reducing properties Influence of anchoring group
Influence of solvatable chain Viscosity-reducing properties
Slide 12
STABILIZATION PROPERTIES OF THE DISPERSION WITH HYPERDISPERSANT
Deposition curve of magnetic dispersion Viscosity stability of the
ink with hyperdispersant
Slide 13
METHOD OF USE OF HYPERDISPERSANTS s MINIMAL RESIN REDUCED RESIN
SOLIDS--LOWERED VISCOSITY & STABILITY s ADDING HYPERDISPERSANT
IMPROVED STABILITY FURTHER REDUCED VISCOSITY s IMPROVING PIGMENT
CONTENT HIGH PIGMENT / VEHICLE RATIO HIGH STABILITY, NORMAL
VISCOSITY
Slide 14
NOTATION FOR USE OF HYPERDISPERSANT s ADDED BEFORE PIGMENTS,
FILLERS AND OTHER INGREDIENTS s ADDING SURFACTANTS DURING LET-DOWN
OR LATER STAGES s DOSAGE DEPENDS ON SURFACE AREA(ABOUT 2MG/M2)
Slide 15
ADVANTAGES OF HYPERDISPERSANTS s FAST WETTING, SHORTER MILLING
TIME, IMPROVED PRODUCTIVITY s HIGH PIGMENT / VEHICLE RATIO, LESS
ENERGY AND LABOUR COST s REDUCED VISCOSITY, IMPROVED RHEOLOGICAL
PROPERTIES s IMPROVED DISPERSING STABILITY, IN AVOID OF
RE-DISPERSION
Slide 16
ADVANTAGES OF HYPERDISPERSANTS s WIDE COMPATIBILITY OF MILLBASE
s NOT EASY TO BE OXIDIZED, LESS SURFACE WASTAGE PRODUCED s
HYDROPHOBIC DISPERSANTS NO HYDROPILIC FILM INDUCED s COMPLETE
WETTING AND BETTER APPLICATION QUALITIES
BENEFITS l IMPROVED QUALITY HIGHER GLOSS GREATER INTENSITY MORE
TRANSPARENCY l HIGHER PRODUCTIVITY SHORTER DISPERSION TIMES HIGHER
PIGMENT CONTENT
Slide 21
BENEFITS l MORE FLEXIBILITY MORE VERSATILE MILLBASE HEATSET AND
SHEETFET FROM SAME MILLBASE MORE STABLE CONCENTRATES ABILITY TO
TRANSPORT
Slide 22
HYPERDISPERSANT FOR OFFSET INKS l HYPERDISPERSANT SELECTION FOR
LITHOL RUBINE / RUBINE TONER USE CH-5 ONLY FOR PHTHALOCYANINE BLUE
OR CARBON BLACK USE CH-5 + CH-11B FOR DIARYLIDE YELLOW USE CH-5 +
CH-22
Slide 23
TYPICAL DOSAGE l (SHOWN AS WEIGHT OF PIGMENT)
RUBINE-------8%----CH-5 BLUE---------10%----3:1 CH-5:CH-11B
YELLOW---10%---3:1 CH-5:CH-22 BLACK------4%--10% CH-5 (DEPENDS ON
THE SPECIAL SURFACE OF CARBON BLACK)
Slide 24
GUIDELINES FOR USE l REDUCING RESIN SOLID TO 30-40% IN MILLBASE
l HOLD BACK IN MILLBASE AS MUCH AS POSSIBLE GELLED VEHICLE OR
GELLING AGENT l ADDING HIGHER PROPORTIONS OF GELLED VEHICLE /
GELLING AGENT AT THE LET-DOWN STAGE TO COMPENSATE
Slide 25
TYPICAL FORMULATION HEATSET / SHEETFET MILLBASE
Slide 26
TYPICAL FORMULATION GRINDING VEHICLE
Slide 27
TYPICAL FORMULATION LET-DOWN VARNISHES
Slide 28
TYPICAL FORMULATION FINAL INK FORMULATIONS
Slide 29
Slide 30
CH-35 WATER PICK-UP REDUCING AGENT APPLICATION IN OFFSET
PRINTING INK AND FLUSH
Slide 31
BENEFITS OF CH-35 l REDUCING EMULSIFICATION, IMPROVING THE
FLUIDITY, TRANSFERRING AND PRINTING DENSITY OF OFFSET INK l
REDUCING WATER PICK-UP, FAST CREATING WATER BALANCE l ACCELERATING
THE OUT-COMING OF WATER IN FLUSH l CONVENIENT TO USE
Slide 32
METHOD OF USE OF CH-35 l ADDED IN THE VEHICLE DURING THE
PREPARATION PROCESS OF INK OR FLUSH OR ADDED IN THE INK PRODUCT l
COMPLETELY MIXED WITH VEHICLE l AT THE DOSAGE OF 0.2-0.4%
Slide 33
CH-1 HYPERDISPERSANT APPLICATION IN MASTERBATCH AND PLASTIC
COMPOUNDS
Slide 34
BENIFITS OF CH-1 l REDUCED PIGMENT COST l IMPROVED PRODUCTIVITY
l IMPROVED PRODUCT QUALITY l REDUCED MANUFACTURE COST l IMPROVED
PROCESSING l NO OBVIOUS ADVERSE EFFECTS
Slide 35
METHOD OF USE OF CH-1 Charge polymer to high speed blender or
tumbler Add CH-1 and blend thoroughly with polymer (2min/1800rpm
blender or 5min tumbling) Add pigments, fillers, processing aids
and other essential ingredients and continue blending.
(1min/1800rpm blending or 15min tumbling) Process resultant blend
in normal manner. e.g. extrusion,internal mixing, or 2-roll
milling.
Slide 36
TYPICAL FORMULATION OF CH-1 IN PE MASTERBATCH
Slide 37
TYPICAL FORMULATION OF CH-1 IN RIGID PVC--WINDOW PROFILE
COMPOUND
Slide 38
TYPICAL FORMULATION OF CH-1 IN PVC BOTTLE COMPOUND
Slide 39
TYPICAL FORMULATION FLEXIBLE PVC--CABLE l FORMULATION OF TBLS
TRIBASIC LEAD SULPHATE 80PHR LEAD 5PHR; DOP 8PHR; SNOWCAL70
5PHR
Slide 40
TYPICAL FORMULATION OF CH-1 IN ABS
Slide 41
TYPICAL FORMULATION OF CH-1 IN PS
Slide 42
CH-2 HYPERDISPERSANT APPLICATION IN PLASTICISER DISPERSION
Slide 43
CH-2 HYPERDISPERSANT FOR PLASTICISER DISPERSION l BENEFITS LOW
VISCOSITY, GOOD FLOW AND PUMPABILITY HIGH PIGMENT CONTENT, IMPROVED
PRODUCTIVITY MORE NEWTONIAN RHEOLOGY IMPROVED COLOUR STRENGTH
Slide 44
CH-2 HYPERDISPERSANT FOR PLASTICISER DISPERSION l BENEFITS
SHORTER MILLING TIMES, LOWER ENERGY CONSUMPTION, LOWER LABOUR AND
FIXED COSTS LESS COLOUR SEPARATIO WIDE COMPATIBILITY NO ADVERSE
EFFECT ON PLASTICS
Slide 45
METHOD OF USE OF CH-2 l ADDED AND DISSOLVED INTO PLASTICISER
BEFORE ADDING OTHER INGREDIENTS l AT DOSAGE OF ABOUT 1--5% OF THE
TOTAL WEIGHT OF PIGMENTS AND FILLERS l HIGH PIGMENT LOADING
Slide 46
TYPICAL FORMULATION OF CH-2 IN PLASTICISER DISPERSION
Slide 47
APPLICATION IN PLASTICISER DISPERSION CH-6 HYPERDISPERSANT
Slide 48
CH-6 HYPERDISPERSANT FOR PLASTICISER DISPERSION l BENEFITS LOW
VISCOSITY, GOOD FLOW AND PUMPABILITY HIGH PIGMENT CONTENT, IMPROVED
PRODUCTIVITY MORE NEWTONIAN RHEOLOGY IMPROVED COLOUR STRENGTH
Slide 49
CH-6 HYPERDISPERSANT FOR PLASTICISER DISPERSION l BENEFITS
SHORTER MILLING TIMES, LOWER ENERGY CONSUMPTION, LOWER LABOUR AND
FIXED COSTS LESS COLOUR SEPARATIO WIDE COMPATIBILITY NO ADVERSE
EFFECT ON PLASTICS
Slide 50
METHOD OF USE OF CH-6 l ADDED AND DISSOLVED INTO PLASTICISER
BEFORE ADDING OTHER INGREDIENTS l AT DOSAGE OF ABOUT 5-15% OF THE
TOTAL WEIGHT OF CARBON BLACK OR ORGANIC PIGMENTS l HIGH PIGMENT
LOADING
Slide 51
TYPICAL FORMULATION
Slide 52
CH-4 HYPERDISPERSANT APPLICATION IN SURFACE TREATMENT
Slide 53
BENEFITS OF CH-4 l MAKE PIGMENT HYDROPHOBIC LESS WATER CONTENT
EASY TO BE FILTERED AND DRIED l MAKE PIGMENT AGGEARATED LOOSELY
EASY TO BE DISPERSED l REDUCED OIL ADSORPTION IMPROVED HEAT
STABILITY AND COLOUR STRENGTH
Slide 54
METHOD OF USE OF CH-4 l ADDED AND MIXED COMPLETELY WITH PIGMENT
OR FILLER AT ANY STAGE BEFORE FILTERING PROCESS l DOSAGE ABOUT
10-50% OF THE DRY WEIGHT OF PIGMENTS