High Performance Polyester Based Casting Polyurethane Prepolymer for PU Elastomer
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 PU Color Sheet, Zinc Borate 2335 80, Casting Polyurethane Elastomer we produce is well received by the marketplace and we have the ability and confidence to meet the needs of our customers. The company continues to carry out research and development and transformation of technological achievements, forming the core independent intellectual property rights of the enterprise. Quality is the basic element of a company's operation and development and the core to ensure the quality of products is technology.
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 are always your sincere, responsible partner, welcome the domestic and foreign customer to visit and purchase. We operate in strict accordance with the standards and requirements of the quality management system to provide customers with advanced technology, premium quality, reliable performance High Performance Polyester Based Casting Polyurethane Prepolymer for PU Elastomer and high-quality services. Our company takes 'Focus on Quality, Serve attentively' as the core value, centered on user needs, and uses professional technology and unremitting efforts to provide enterprises with professional services. The company always regards technological innovation as the driving force leading the development of the enterprise, and has successively developed brand-new products.
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