Higher Performance Raw Materials for Improved Polyurea Properties

Transcription

1 Higher Performance Raw Materials for Improved Polyurea Properties High Chemical Resistance High Temperature Resistance High Tensile Strength Better Flow Better Adhesion AntiGraffiti Coatings Presented by Ray Scott & Lee Hanson The Hanson Group, LLC PDA Conference Biloxi, MS March 2005 Contributors: Jim Facello Kevin Light

2 Basic Pure Polyurea Technology PART A Isocyanate Prepolymer PART B Amines BASF Polyetheramines Amine Chain Extenders PolyLink DETDA, PolyLink 4200 Pigment Dispersions Rebus Dispersions

3 Advantages of Polyureas Insensitive to moisture and humidity Weather tolerant: Cures at to >300 0 F Fast Set, Return to service in minutes No VOC s and little to no odor Excellent resistance to thermal shock Flexible, waterproof, seamless and resilient Relative unlimited application thickness Spray, hand mix and caulk grade materials

4 Improvements & Needs that Don t Compromise Basic Advantages You want to improve Polyurea performances without losing certain properties Sometimes improved tensile will compromise elongation or adhesion or other properties More crosslinking to improve chemical resistance can reduce abrasion and other properties

5 What are some of the New Performance Needs for Polyureas? Asked the Customers Acid Resistance Higher Tensile, Tear & Toughness Higher Impingement Abrasion Better Adhesion Better Surface Appearance Anti-Graffiti, Low-Slip Polyureas Single Component, Voice Command Cure Idiot Proof

6 Acid Resistance Where & Why Secondary Containment Mining

7 Acid Resistance How Have They Been Improved Can modify Part A (Isocyanate portion) Higher performance Iso Pre-polymers Modifications made to the polymer that enhances the chemical resistance HGB 6558 developed for this need: 16% NCO 750 cps

8 Acid Resistance HGB 6558 Properties Cured with Standard Part B Polyurea Joint Research Work with The Hanson Group, Primeaux Associates, The Dow Chemical Company & Sartomer Corporation

9 CHEMICAL IMMERSION TEST ON POLYUREAS BASED ON VARIOUS ISO PRE-POLYMERS Test Methods: ASTM D (Standard Test Method for Effect of Household Chemicals on Clear and Pigmented Organic Finishes) ASTM D (Standard Practices for Evaluating the Resistance of Plastics to Chemical Reagents)

10 Basic Formulation & Conditions PART A Isocyanate Pre-polymer % NCO PART B Resin Blend BASF Polyether Amines Polylink DETDA Polylink 4200 Rebus White Pigment Dispersion Processing Index: ISO/Resin Volume Ratio: 1:1 Spray Pressure: Primary Heat: Hose Heat: Spray Gun: 2,000 psi minimum F F Impingement Mix, Mechanical Purge

11 CHEMICAL REAGENTS FULL LIST OF CHEMICALS USED ON POLYUREAS BASED ON VARIOUS ISO PRE- POLYMERS Reagent xylene 60% acetic acid 20% HCL 60% Phosphoric acid 20% Nitric acid methanol 30% Phosphoric acid acetic acid, 100% acetone water 60% formic acid 40% HCL denatured alcohol toluene 25% acetic acid 40% nitric acid 30% sulfuric acid MEK 50% citric acid bleach 99% isopropyl alcohol 60% sulfuric acid

12 CHEMICAL IMMERSION TEST ON POLYUREAS BASED ON VARIOUS ISO PRE-POLYMERS 60% Sulfuric Acid Reagent 60% Acetic Acid Reagent Weight (grams) HGB 6578 HB 6042 HB 6557 before 1 week Weight (grams) HGB 6578 HB 6042 HB 6557 before 1 week 60% Sulfuric Acid Reagent 60% Acetic Acid Reagent Shore A HGB 6578 HB 6042 HB 6557 before 1 week Shore A HGB 6578 HB 6042 HB 6557 before 1 week

13 CHEMICAL IMMERSION TEST ON POLYUREAS BASED ON VARIOUS ISO PRE-POLYMERS 40% Nitric Acid Reagent Weight (grams) HGB 6578 HB 6042 HB 6557 before 1 week 40% Nitric Acid Reagent Shore A before 1 week 0 HGB 6578 HB 6042 HB 6557

14 CHEMICAL IMMERSION TEST ON POLYUREAS BASED ON VARIOUS ISO PRE-POLYMERS Methanol Reagent Xylene Reagent Weight (grams) HGB 6578 HB 6042 HB 6557 before 1 week Weight (grams) HGB 6578 HB 6042 HB 6557 before 1 week Methanol Reagent Xylene Reagent Shore A before 1 week Shore A before 1 week HGB 6578 HB 6042 HB HGB 6578 HB 6042 HB 6557

15 Acid Resistance Results Based on Surface Hardness and Weight Gain Bottomline Showed that the PolyBD ISO- Prepolymer showed much better Acid Resistance than the PPG Based Prepolymers

16 Additional Acid Resistance Improved by Modifying Part B Can modify Part B Silane Modified Amines THG new developments PolyBD Polyol Sartomer High Crosslinking Polyetheramines BASF T403

17 Higher Tensile, Tear & Film Properties Where and Why??? High wear and tear areas Impingement abrasion resistance High Abrasion Environments Sand storms Flooring Blast Mitigation

18 Improved Materials for Higher Tensile & Tear Modify Part A (ISO) Higher performance Iso-prepolymers modified with specialty polymers Key is to pick the right polymer that you can also make into a usable product (viscosity, etc ) HB 6549 or HGB % NCO 850 cps

19 Improved Tensile & Tear with New ISO Pre-polymer Chemistry System Iso 4 Iso 5 Vorastar HB 6549 Tensile (psi) Elongation (percent) Tear (pli) Modulus 100% % % Hardness (Shore D) ** Viscosity at 25C (cps) Gel (s) Tack free (s) Spec. Grav

20 Improved Tensile & Tear with New ISO Pre-polymer Chemistry Tensile (psi) Elongation (percent) Iso 4 Iso 5 HB Iso 4 Iso 5 HB 6549 Tear (pli) Hardness (Shore D) Iso 4 Iso 5 HB Iso 4 Iso 5 HB 6549

21 Tech Info about Higher Strength ISO s System Test Method Vorastar HB 6042 Iso 4 Vorastar HB 6557 Iso 5 Tensile ASTM D Elongation ASTM D Tear ASTM D Modulus 100% % % Hardness Shore D Viscosity at 25C (cps) %NCO Gel (s) Tack free (s) Spec. Grav

22 Tech Info about Higher Strength ISO s Tensile (psi) Elongation (percent) Iso 4 HB 6042 Iso 5 HB 6557 Iso 4 HB 6042 Iso 5 HB Iso 4 HB 6042 Iso 5 HB 6557 Iso 4 HB 6042 Iso 5 HB 6557 Tear (pli) Hardness (Shore D) Iso 4 HB 6042 Iso 5 HB 6557 Iso 4 HB 6042 Iso 5 HB Iso 4 HB 6042 Iso 5 HB 6557 Iso 4 HB 6042 Iso 5 HB 6557

23 Improved Materials for Higher Tensile & Temperature Modify Part B (Amines) Higher crosslinking amines will improve the tensile strength and temperature resistance BASF T403 and T5000

24 Better Adhesion, Surface Appearance and Less Gun Gelling Chain Extender Modifications have been proven to give Polyureas better overall properties but mostly It Just Sprays Better PolyLink 4200 PolyLink DETDA PolyClear 136

25 A Well Balanced Blend of Amine Chain Extenders will Make your Polyureas Just Spray Better PolyLink 4200 Better Adhesion, Better Flow and Less Gun Gelling PolyLink DETDA Faster Green Strength Development and Higher Physical Properties PolyClear 136 Longer Gel Time, Better Adhesion, and Surface Appearance

26 Anti-Graffiti: Low Slip Coatings Where & Why??? Utility and Public Access Areas How can you obtain these properties: Modify Part A (ISO) Fluorinated IPDI and MDI Pre-polymers

27 ALIPHATIC AND AROMATIC PREPOLYMERS DESIGNATION AI AI AI AI PREPOLYMER TYPE POLY-BD-MDI PREPOLYMER FLUORINATED POLY-BD-MDI PREPOLYMER PPG-IPDI PREPOLYMER FLUORINATED PPG-IPDI PREPOLYMER

28 SURFACE PROPERTIES OF PPG IPDI FLUORINATED VS. NON-FLUORINATED BEFORE CLEANING AFTER CLEANING NON-FLUORINATED NON-FLUORINATED FLUORINATED FLUORINATED

29 SURFACE PROPERTIES OF PolyBD FLUORINATED VS. NON-FLUORINATED BEFORE CLEANING AFTER CLEANING NON-FLUORINATED NON-FLUORINATED FLUORINATED FLUORINATED

30 SURFACE TENSION MEASUREMENT: AROMATIC POLYUREA (60X MAG.) AI (Non-fluorinated) AI (Fluorinated)

31 Single Component Voice Activated Cured Polyureas Still working on the Voice Activated Give Us Time

32 Improved Cold Temperature Stability for ISO s Vorastar HB 6042 ISO that was in C for 30 days 1 2 System Test Method Voorastar HB 6042 Vorastar HB 6042/Freeze Tensile (psi) ASTM D Elongation (percent) ASTM D Tear (pli) ASTM D Modulus HB 6042 Std HB 6042 Frozen 100% 200% 300% Equivalent Properties of Std HB 6042 Hardness (Shore D) ** Viscosity at 25C (cps) Gel (s) 9 9 Tack free (s) Spec. Grav

33 Improved Cold Temperature Stability for ISO s Vorastar HB 6042 ISO that was in C for 30 days 770 cps Viscosity, no haze, no gels Good Spray Pattern of Frozen HB 6042

34 Higher Performance Raw Materials Improved Polyurea Properties Thanks to our Vendor and Customer Partners: BASF The Dow Chemical Company Aceto Corporation Sartomer Isotec

35 Higher Performance Raw Materials Improved Polyurea Properties Wrap-up Polyurea technology is not new, but the market is now accepting it faster than ever. Our team has been involved with Polyureas since We are continually developing newer and better raw materials to meet the ever demanding market needs. What do you need your Polyureas to do?