
Polyurethane Injection Products Urethane Casting Products PU Products TPU Extrusion Products
The same raw materials can be produced with different hardness by adjusting the A/B/C component ratio, and the raw materials need not be replaced in the hardness switching process.
Product Introduction
The company takes "only the best" as its corporate spirit and focuses on Polyester Type MDI System Polyurethane Elastomer, PTMEG Based Casting Polyurethane Prepolymer, Casting Polyurethane Elastomer production. Through continuous improvement of the industrial supply chain and integration of advantageous resources, we will provide customers with the best experience and the most perfect products. The company will take advantage of resources and capital to further increase sales scale and profitability review, and increase market competitiveness and industry influence. We believe that the market is the driving force of all activities of the enterprise, so we always pay attention to market changes and grasp the trends.
Three componment MDI system PU Prepolymer
1. Characteristics of MDI raw materials
The same raw materials can be produced with different hardness by adjusting the A/B/C component ratio, and the raw materials need not be replaced in the hardness switching process.
1) Need catalyst intervention
MDI three-component feedstock belongs to semi-prepolymer, and the reaction rate of-0H is less than that of-NH2. In order to obtain better physical properties and production efficiency, catalyst is needed
2) 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.
2. Advantages of the MDI three-component series
* Adjustable hardness: the same grade of three-component raw materials can be replaced by permutation and combination to produce products with different hardness.
* Environmental protection: MDI vapor pressure is lower.
* Low equipment energy consumption: The application temperature of MDI products is lower, and the equipment energy consumption is greatly reduced.
* High production efficiency: The intervention of the catalyst makes the production efficiency of MDI products higher than that of TDI products, with low energy consumption and high efficiency.
Specifications
Item | Standard | Unit | Hardness | |||||||
60A | 65A | 70A | 75A | 80A | 85A | 90A | 95A | |||
HJ33M-A | - | g | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
HJ33M-B | - | g | 224 | 184 | 144 | 124 | 104 | 84 | 69 | 56 |
HJ33M-C | - | g | 7.25 | 9.05 | 10.85 | 11.75 | 12.65 | 13.55 | 14.20 | 14.80 |
Catalyst | - | ‰ | 1~3 | 1~3 | 1~3 | 1~3 | 1~3 | 1~3 | 1~3 | 1~3 |
HJ33M-A temperature | - | ℃ | 45-50 | |||||||
HJ33M-B temperature | - | ℃ | 65-75 | |||||||
HJ33M-C temperature | - | ℃ | 35-40 | |||||||
Die temperature | - | ℃ | 100-110 | |||||||
Post-maturing conditions | - | h/℃ | (12-24)/100 according to product size | |||||||
Gel time | - | mins | 7~10 | 7~10 | 7~10 | 5~7 | 5~7 | 3~5 | 3~5 | 3~5 |
Demoulding time | - | mins | 40 | 40 | 40 | 30 | 30 | 30 | 30 | 30 |
Tensile strength | GB/T528-2009 | Mpa | 35-37 | 36-38 | 36-38 | 38-40 | 38-43 | 42-47 | 43-48 | 47-52 |
100% modulus | GB/T528-2009 | Mpa | 1—2 | 2—3 | 2—3 | 2—4 | 3—5 | 5—7 | 6—8 | 8—10 |
300% modulus | GB/T528-2009 | Mpa | 2—4 | 5—8 | 7—9 | 9—12 | 11—14 | 13—16 | 14—17 | 17—20 |
Elongation at break | GB/T528-2009 | % | 551-654 | 532-637 | 522-625 | 522-623 | 481-582 | 432-535 | 422-525 | 425-527 |
Tear strength | GB/T529-2008 | KN/m | 36-44 | 42-54 | 52-63 | 61-73 | 71-82 | 81-92 | 92-104 | 104-120 |
Rebound | GB/T1681-2009 | % | 51-52 | 50-52 | 50-52 | 49-51 | 48-50 | 45-47 | 43-45 | 41-43 |
Density (25 ℃) | GB/T533-2008 | g/cm2 | 1.21 | 1.21 | 1.22 | 1.22 | 1.22 | 1.23 | 1.24 | 1.24 |
DIN drum wear | GB/T9867-2008 | mm3 | ≤40 | ≤40 | ≤38 | ≤38 | ≤38 | ≤38 | ≤35 | ≤35 |
We provide professional Polyurethane Injection Products Urethane Casting Products PU Products TPU Extrusion Products, our products are innovative but highly competitive. We have promoted the rapid development of our company with good reputation and scientific management, and won praise from our customers. In the new historical conditions, we need the spirit of hard struggle to inspire us to move forward, to promote and promote our career breakthroughs.
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