
Fast Setting Protective Spray Polyurea
Under conventional hardness, TDI and MDI products have no great difference in strength index, but will have obvious improvement in elasticity and wear resistance.
Product Introduction
Our PU Square Pad, PU Tube and Pipe, Zinc Borate 2335 400 condensed the efforts of all employees, established a good image in domestic and foreign companies, and won a good reputation. Our company has a good reputation and abundant capital reserve. We create user value and social value, thereby enhancing corporate value, and at the same time promoting social civilization. With the policy of focused management, macro vision, and emphasis on talents, we are dedicated to shaping the spirit of honesty, diligence, innovation, and progress. We have a group of experienced experts and talents on site, dedicated to providing customers with comprehensive automation and information application solutions and high-quality professional services.
Characteristics of MDI raw materials
1. Under conventional hardness, TDI and MDI products have no great difference in strength index, but will have obvious improvement in elasticity and wear resistance.
MDI products will have better wear life and softer hand feeling.
Indicators | Polyester TDI | Polyester MDI |
Hardness (shA) | 90 | 90 |
Tensile strength (Mpa) | 51 | 48 |
Elongation (%) | 577 | 546 |
Tear strength (KN/m) | 107 | 102 |
Rebound (%) | 30 | 40 |
Wear (mm3) | 50 | 38 |
2.Fast reaction rate
With high NCO content and catalyst intervention, the reaction rate of MDI feedstock is 1-2 times faster than that of TDI series feedstock.
3.Environmental protection
The vapor pressure of MDI is much lower than that of TDI, and it has aromatic odor and little toxicity in the production process, so MDI is a new material that meets the needs of environmental protection
4.Low application temperature of materials
Because of the high activity of MDI, the application temperature of MDI raw materials is much lower than that of TDI series raw materials in order to prevent the degradation of physical properties of final products caused by self-polymerization of raw material.
5. Because of the high resilience and flexibility, MDI series products are much better than TDI series products in the application effect of sieve plate. The improvement of elasticity is helpful to improve the impact wear resistance and self-cleaning effect of products.
Type | HJ2285M | HJ2290M | HJ2295M | HJ2385M | HJ2390M | HJ2395M |
NCO content /% | 6.0±0.2 | 7.5±0.2 | 8.8±0.2 | 6.0±0.2 | 7.5±0.2 | 8.8±0.2 |
Appearance in 20℃ | PTMEG type,white solid | Polyester type,white solid | ||||
1,4-BD dosage (100gPUP )/g | 6.2 | 7.7 | 9.1 | 6.2 | 7.7 | 9.1 |
Viscosity(85℃)/mPa·s | 1300-1500 | 900-1100 | 750-850 | 1300-1500 | 1100-1300 | 900-1100 |
Mixing temperature/℃ (PUP/1,4BD) | 85/40 | 85/40 | 80/40 | 85/40 | 85/40 | 80/40 |
Catalyst addition dosage (1000gPUP)/g | Catalyst addition dosage (1000gPUP)/g | |||||
Gel time /min | 8—10 | 5—7 | 4—6 | 8—10 | 5—7 | 4—6 |
Vulcanization Time (100-110℃)/h | 24-48 | 24-48 | 24-48 | 24-48 | 24-48 | 24-48 |
Hardness(shore A) | 85±2 | 90±2 | 95±2 | 85±2 | 90±2 | 95±2 |
Tensile strength/MPa | 34-39 | 37-42 | 43-48 | 42-47 | 48-53 | 52-57 |
100% Modulus /MPa | 4—6 | 5—8 | 10—14 | 3—6 | 8—10 | 10—13 |
300%Modulus /MPa | 10—15 | 13—18 | 20—30 | 8—14 | 16—20 | 20—24 |
Elongation at break/ % | 360-460 | 560-660 | 440-540 | 530-630 | 580-680 | 480-580 |
Tear strength(KN/m) | 60-70 | 95-105 | 105-115 | 75-85 | 105-115 | 115-125 |
Rebound/ % | 48-50 | 46-48 | 45-47 | 45-47 | 42-45 | 40-43 |
Specific gravity(25℃)(g/ cm3) | 1.11 | 1.11 | 1.12 | 1.23 | 1.23 | 1.24 |
DIN Abrasion loss /mm³ | ≤38 | ≤35 | ≤32 | ≤38 | ≤38 | ≤36 |
We struggle for creating an environment conducive to innovation activities, to enhance our innovation capabilities, and thereby increase the added value of our Fast Setting Protective Spray Polyurea. As a professional technology-driven high-tech enterprise, we have been committed to providing enterprises with high-quality products and services. We adhere to the "people-oriented" thinking, the core of the quality of talent capacity building, to optimize the structure of the talent team as the main line.
Hot Tags: two componment mdi based polyurethane prepolyer, China, manufacturers, factory, buy, PU Square Pad, PTMEG Type MDI System Polyurethane Elastomer, PU Color Sheet, PU ROD, Flame Retardent Zinc Borate, MDI Two Componment PTMEG Type Casting PU
[[ProKeywords]]You Might Also Like
-

PU Rod (75A-98A) for Machinery Buffering
-

Polyurethane Rod, PU Rod Brown Color with 80-90 Shore a
-

Military Bulletproof Helmet Aramid/Kevlar Fast Helme...
-

Military Bulletproof Helmet Kevlar/PE Fast Helmet wi...
-

Two Component Polyurethane Mdi Based Sport Court Syn...
-

China Factory Eco-Friendly Timber Wood Flooring PU B...
