Polyurethane Tube Making Machine /PU Tube Making Machine /Castor Wheel Making Machine
They also have advantages in high resilience, low temperature performance and resistance to water attack(hydrolysis). Polyethers also have lower viscosity and specific gravity.
Product Introduction
We pay attention to every link of product production, from the purchase of raw materials to the delivery of products, we have implemented strict compliance control, so as to ensure the quality of products. Due to our emphasis on quality, we have a high reputation in the PU Tube and Pipe, Flame Retardent Zinc Borate, Hot Casting Polyurethane Prepolyer industry, and have won praise from customers in the market. We take the product-oriented attitude and introduce advanced technology to strictly control the quality of products. We comply with the requirements of social responsibility and all related laws and regulations to achieve efficient social responsibility management performance. We are a young and energetic company. We strengthen the value guidance of heart for the company, take charge and responsibility, dedication, and inspire the passion of officers and entrepreneurs.
PTMEG based Casting Polyurethane prepolymer
1. PTMEG based polyurethane prepolymer is the higher level of Polyether prepolymer, they are recommended for applications where parts undergo dynamic stress, etc, they incur lower heat build-up. They also have advantages in high resilience, low temperature performance and resistance to water attack(hydrolysis). Polyethers also have lower viscosity and specific gravity.
2. Specifications,Application and operation details.
PTMEG/TDI system Casting Polyurethane prepolymer
Item | Type | |||
HJ-2185 | HJ-2190 | HJ-2195 | HJ-2197 | |
NCO% Content | 3.5±0.2 | 4.2±0.2 | 6.0±0.2 | 6.5±0.2 |
Density 25℃/(g/cm³) | 1.11 | 1.11 | 1.12 | 1.12 |
Viscosity 80℃/mpa·s | 900-1100 | 800-1000 | 700-900 | 600-800 |
Appearance at 25℃ | Colorless transparent liquid | |||
Mix Temperature ℃ Prepolymer /Moca | 85℃/115℃ | 80℃/115℃ | 75℃/115℃ | 75℃/115℃ |
Gel Time /min | 13-18 | 10-15 | 6-10 | 3-5 |
Vulcanization Time (h) | 25-16 | 25-16 | 25-16 | 25-16 |
Physical Properties | ||||
Hardness (Shore A) | 85±2 | 90±2 | 95±2 | 97±2 |
Tensile Strength (Mpa) | 25-28 | 33-38 | 38-45 | 40-46 |
100% Modulus (Mpa) | 11-12 | 14-16 | 16-18 | 18-20 |
300% Modulus (Mpa) | 18-20 | 28-30 | 38-42 | 40-43 |
Elongation at Break (%) | 360-420 | 350-400 | 280-350 | 250-300 |
Tear Strength (KN/m) | 60-65 | 75-85 | 90-100 | 95-105 |
Compression permanent deformation % | 4-6 | 4-6 | 2-4 | 2-4 |
DIN Abrasion loss（mm³） | ≤45 | ≤40 | ≤40 | ≤40 |
Resilience %/25℃ | 40-45 | 35-40 | 28-32 | 26-30 |
- Product application : PU Rollers, casters, seals, pistons, classification screens, flotation machine impellers, forklift tires, molds, slurry pump linings and other products. - Operation details:After vacuum degasing at 75-85 ℃, the prepolymer is mixed with melted MOCA for casting and vulcanization. It is suitable for manual and mechanical operation. - Storage:Store in a cool and dry place and use up as soon as possible after opening; If it cannot be used up at one time, it shall be sealed with nitrogen; The second opening needs to be used for defoaming, and the original storage period is six months. - Packing:20kg or 200kg iron drum | ||||
The output of our Polyurethane Tube Making Machine /PU Tube Making Machine /Castor Wheel Making Machine continues to increase, the production structure is gradually optimized, and the technology is progressing. Safety first is the support guarantee of life first, and life first provides the ideological leadership for safety first. To significantly increase our service quality, our corporation imports a large number of overseas advanced devices.
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