Composites. additives and its performances

Transcription

1 Patcham Additives for Composites Complete Package of various Complete Package of various additives and its performances

2 Contents UPR Industries Patcham Additives Defoamers Surface Modifiers Rheology Modifiers Wetting and Dispersing Agents Co catalyst replacement

3 UPR and Related Resin Industry Unsaturated Polyester Resin Product of chemical reaction of saturated and unsaturated dicarboxylic acids with alcohols Cross linked with a vinyl reactive monomer will illform highly hl durable structures and coatings Utilized globally for the manufacture of products such as: Sanitary ware pipes, Tanks, Gratings, Marine, Automotive industry Building and construction

4 Current Market Trend By end use Wind Energy Construction Transportation Consumer Goods Others (Automotive ti,marine, Gl Gel coats etc )

5 Patcham Additives Application in UPR Systems Pigment Dispersionsi Gel Coats SMCs BMCs Pulltrusions Clear Top Coats Hand Lay ups Spray applications

6 Patcham Additives Defoamers Leveling Additive Rheology Modifier Pat Add AF 75 Pat Add LE 1065 Pat Add Rheol 253 Pat Add AF 76 Pigment Dispersion, Anti Flooding and Floatation Pat Add DA 2702 Pat Add DA 2047 Accelerators for curing Patcure 2716

7 Defoamers Defoamer should have limited solubility (incompatibility) in the coating and side effects such as crater formation. Lower surface tension. Works through direct destruction of macro foam at the air interface and by avoiding major air entrapment. Free from defects Ecology Selection of defoamer Incompatibility

8 1. Defoamer emulsified into fine droplets and combine with stabilizing surfactant layer and penetrate in to thefoam lamella. 2. Spread across the disrupted surfactant layer. 3. The film exhibits lower elasticity which leads to destabilization of lamella. 4. Destabilization leads to therupture of the lamella. Mechanism of Defoaming

9 Coalescence of micro bubbles Deaerators (non polar) are oriented in such a way to surround the air bubbles. These bubbles come together and fuse to form bigger air bubbles. Fusion takes place because of the reduced interaction of deaerator and binder. At this moment coalescence takes place and leads to the bigger bubble formation. Stoke s law Bigger air bubbles moves with higher velocity than small bubbles.

10 Pat Add AF 75 Patcham defoamer Polymeric de aerator and defoamer for use in UP systems, gelcoats. Demonstrates fast de airing and excellent compatibility with a wide variety of systems at low dosages Physical Characteristics Appearance : Clear colourless liquid 25 C, : <75 cp Specific 25 C, approx : Composition : organic polymer compound in hydrocarbon solvent Solid Content(120 C/1 Hr.) : 38.0± 2.0%

11 Pat Add AF 75 Performance test in Iso UPR against Reference 1 Blank Pat Add AF 75 Ref 1 Blank Pat Add AF 75 Ref 1 Pat-Add AF 75 is suitable for avoiding air entrapment in ambient curing system as well as pulltrution process of composites.

12 Pat Add AF 75 Performance test in Iso UPR against Reference 1 RAW MATERIALS Test Formula Pat Add Blank AF 75 Refernce 1 PROPERTIES BLANK Pat Add AF 75 Reference 1 UPR Appearance of Solution Clear Clear Clear Co (Accelerator Rate of Defoaming Defoamer Hardener (MEKP) TOTAL Appearance after curing (from moulded panels) Transpare nt with entrapped Opaque pq Opaque pq micro foam

13 Pat Add AF 75 Performance test in Iso UPR against Reference 2 PROPERTIES BLANK Pat Add AF 75 Reference 2 Appearance of Solution Clear Clear Slight hazy Rate of Defoaming* Appearance after curing (from moulded panels) Transparent with entrapped micro foam Slight Opaque Opaque Blank Pat Add PtAdd AF 75 Rf Reference 2

14 Pat Add AF 76 Patcham defoamer Silicone free, polymeric de aerator and defoamer for use in UPR systems, as well as in PUR and epoxy systems. Demonstrates fast de airing and excellent compatibility with a wide variety of mentioned resins based formulations. Especially recommended for clear, transparent systems. Physical Characteristics Appearance : Clear colourless liquid 25 C, : <25 cp Specific 25 C, approx : Composition : organic polymer compound in hydrocarbon and ester solvents

15 Pat Add AF 76 Performance test in UPR Clear Laminates against Reference 3 Blank Pat Add AF 76 Ref. 3 Blank Pat Add AF 76 Ref. 3 ISOPHTHALIC UPR SYSTEM ORTHOPHTHALIC UPR SYSTEM Benefits of Pat Add AF 76 Highly recommended for clear laminates Produce good appearance Maintains and does not alter film properties p of laminates or composites

16 Role of additive in reduction in surface tension Addition of small quantity of Polysiloxane reduces surface tension of liquid. Liquid surface tension > Liquid surface tension is substrate surface energy reduced and is now < than substrate energy Liquid will not spread or it will bead up on the surface. Liquid will spread or wet out the surface.

17 Pat Add LE 1065 Patcham Surface Modifier Efficient i surface tension modifier, effective at very low concentrations Promotes film levelling and avoiding formation of craters Provides excellent surface smoothness, slip and mar resistance, counteracts pigment floating Suitable for use in pigmented as well as clear coating systems.

18 Performance of Pat Add LE 1065 in white top coat formulation Pat Add LE 1065 Reference 4 Parameters LE 1065 Reference After stability Craters rating 0 5 Raw Materials % Wt Ortho UPR 100 TiO 2 15 Patcure LE 1065/ Reference 4 0.6

19 Rheology Rheology is the study of flow and deformation df of materials under applied forces When a force is applied to a liquid, the liquid will flow to relieve the strain from this force Different systems will resist this flow differently from other and the measurement of the resistance of the system is the measure of viscosity of the system

20 Classifications on the basis of Rheology Rheology Newtonian Rheology Non Newtonian Rheology Pseudo plastic Dilatants Thixotropic

21 Different flow profiles Newtonian fluid is independent of shear rate Example Water, Certain oils Pseudoplastic Decrease in viscosity when the shear rate is increased Example Emulsions, suspensions, dispersions, paint, ink and adhesive systems Thixotropic Viscosity decreases with increase in shear rate until a minimum is reached. Once the shearing force is stopped the viscosity recovers over time. Dilatant Increase in viscosity as the shear rate increases (shear thickening). Example highly concentrated suspensions orslurries

22 Different Shear Profiles Pseudoplastic V I S C O S I T Y Newtonian Dilatant SHEAR RATE ( S 1 )

23 Different Shear Profiles V I S C O S I T Y Thixotropic Viscosity Recover Viscosity Decrease SHEAR RATE ( S 1 ) The viscosity decreases with increase in shear rate until a minimum is reached. Once the shearing force is stopped the viscosity recovers over time

24 Different Rheology demand for the paint

25 Classifications of Rheology Modifiers (Functional Group) Rheology Modifiers Clays Cellulose lose derivatives es (CMC /HEC ) Acrylic Thickeners ( ASE ) Hydrophobically y Modified Alkali Swellable Emulsions (HASE) Hydrophobically modified Ethoxylated Urethanes (HEUR)

26 Rheology of UPR Systems Fumed silica and clay based additives are used as solid thixotropest to control UPR formulations. These materials through hydrogen bonding are able to create three dimesional network which result to pseudoplastic and thixotropic flow behavior. Enhance and boost the three dimensional structure by liquid rheology modifier is added to improve thixotropy and even reduce the loading of clays and fumed silica. Pat Add Rheol 253 Fumed Silica Three dimensional network boost by Pat Add Rheol 253

27 Pat Add Rheol 253 A liquid rheology modifier for use in UP systems, gelcoats. Contributes to the formation of a thixotropical structure and reduces risk of separation. Demonstrates excellent compatibility with a wide variety of systems.

28 Performance of Pat Add Rheol 253 Formulation Rheol 253 Reference 5 UPR Resin Pat Add Rheol Reference Pat Add AF Reference Pat Add LE Reference Pigment R Aerosil Cobalt 1% drier Total Rheol 253 does not require any chemical activation. Rheol 253 is liquid Rhelogy Modifier which contributes thixotropical structure and reduce risk of sedimentation in UPR gel coat system.

29 Performance of Pat Add Rheol Initial Viscosity Rheol 253 Ref.5 Viscosity measured in Cps After 12 hr Viscosity Rheol 253 Ref After 1 Month Stability Viscosity After 1 week Stability Viscosity Rheol 253 Ref.5 Rheol 253 Ref

30 Colorants for UPR System Multi compatible: the best dispersing agent for UPR pigment concentrates High pigment and filler loadings for pigment concentrates Robust stabilization of gel coats Enhanced brilliance of color and transparency for organic pigments Improved opacity for opaque and inorganic pigments Improved leveling, high gloss and color strength

31 Pat Add DA 2047 Strong adsorption properties onto a wide variety of pigment surfaces Excellent dispersion stability Low viscosity for high loading pigment pg dispersions Produce high transparency for fine particle sized pigments.

32 Pat-Add DA 2047 Resin Minimal i Pigment Colorants Guideline Formulations for UPR Raw Materials PW 6 SP.Black 4 PB 15:3 Mill base Pat Add DA 2047 Ref 6 Pat Add DA 2047 Ref 6 Pat Add DA 2047 Saturated Polyester Additive Pigment Letdown Saturated Polyester Ref 6 Total %SOP 2.50% 2.50% 30.00% 30.00% 30.00% 30.00% Initial viscosity of millbase Final viscosity of PC Grinding time: 1 hr 1 hr 1 hr 30 min. 1 hr 30 min 2 hr 2 hr RPM:

33 Pat-Add DA 2047 Resin Minimal Pigment Colorants Opacity (Mass tone) Over White Tinting Strength (10% Reduction) Color Values Pat Add DA 2047 Color Measurement PW 6 SP.Black 4 PB 15:3 Reference 6 Pat Add DA 2047 Reference 6 Pat Add DA 2047 Reference 6 L* a* b* L* NA NA a* NA NA b* NA NA

34 Pat-Add DA 2047 Resin Minimal Pigment Colorants White TR 902 Special Black 4 Phthalo Blue 15:3 DA 2047 Reference 6 DA 2047 Reference 6 DA 2047 Reference 6

35 Pat-Add DA 2047 Resin Minimal i Pigment Colorants Mold application i in ISO Phthalic hh UPR System

36 Pat Add DA 2702 Wetting and dispersing additives for dispersion of commonly used fillers such as calcium carbonate and aluminium trihydroxide (ATH). Reduces compound viscosity so that a higher h filler fll loading in the resin is possible.

37 Pat Add DA 2702 Test formulation for fillers CaCO 3 RAW MATERIALS Pat Add DA Reference Ortho UPR Dispersant CaCO Total ISO UPR Dispersant CaCO Total

38 Pat Add DA 2702 Anti Settling Properties Properties PAT ADD DA 2702 Reference 7 Ortho UPR ISO UPR Ortho UPR ISO UPR Initial Viscosity In Krebs After 24 hrs Viscosity in Krebs DEGREE OF SEPARATION (Actual Inspection) No Separation No Separation Note: Stability test is being continued.

39 Pat Add DA 2702 Anti Settling Properties ISOPHTHALIC UPR SYSTEM Pat Add DA 2702 Reference 7 ORTHO PHTHALIC UPR SYSTEM Pat Add DA 2702 Reference 7

40 Patcure 2716 and Cobalt Octoate 6% GEL TIMES (TYPICAL VALUE MINUTES) GEL TIME STUDIES S PATCHAM 2716 (23 minutes) COBALT OCTOATE 6% (22 minutes) APPEARANCE OF CASTING COLORLESS AND CLEAR PURPLE AND CLEAR * Typical formulation: Resin 100 gms, Accelerator 0.25 gms, MEKP 1.5 gms Patcure 2716 Cobalt Octoate 6%

41 THANK YOU Disclaimer: While every effort is made to provide accurate and complete test results for The PATCHAM ADDITIVES, various data may vary depending upon different raw materials, test procedures and test conditions. The accuracy, reliability, or totality of the results are not guaranteed or warranted in any way. PATCHAM FZC and its representatives disclaim liability of any kind whatsoever, including liability for quality, performance and fitness for a particular purpose arising out of the use, or inability to use the test results.

42 Reference Product Reference 1 Pat Add AF 75 BYK A555 Reference 2 Pat Add AF 75 BYK A501 Reference 3 Pat Add AF 76 BYK A500 Reference 4 Pat Add LE 1065 BYK 330 Reference 5 Pat Add Rheol 253 BYK R605 Reference 6 Pat Add DA 2704 BYK W972 Reference 7 Pat Add DA 2702 BYK 980