
Electric Type Large Flow Elastomer Casting Machine Producing Polyurethane Elastomer 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
With many factories, we can provide a wide range of PU Rubber Rod, Flame Retardent Zinc Borate, Zinc Borate 2335 200. Our company respects talents and pays attention to technology in the spirit of stability, development, loyalty, efficiency, unity and innovation. We insist on the social responsibility guideline of people-oriented and common growth of enterprise and staff. The company has established strategic partnerships with many domestic and foreign companies, and insists on technical exchanges and resource sharing.
Quazi MDI Three componment casting PU
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.Because MDI has excellent symmetry and two benzene rings in molecular structure, MDI products can endow products with better comprehensive physical properties. At the same time, because of chemical reaction factors, the product characteristics are also different from TDI.
(1) Higher resiliency
(2) Higher shrinkage rate
(3) Aging resistance and improved color stability
(4) Decreasd temperature resistance
2. 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.
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. Storage conditions of raw materials
|
Storage requirements |
Raw materials |
Time |
Storage condition |
Shelf life |
|
HJ33M-A |
May 1-October 1 (spring and summer) |
Below 30 ℃, keep away from light and dry, and it is recommended to store it in cold storage |
6 months after receipt > 30 ℃ storage time < 1 month |
|
|
October 1-May 1 (autumn and winter) |
Under 30 ℃, keep away from light and dry, without other special requirements |
6 months after receipt of the goods |
||
|
HJ33M-B |
Year-round |
Store at room temperature, away from light and dry |
2 years after receipt of goods |
|
|
HJ33M-C |
Year-round |
Store at room temperature, away from light and dry |
2 years after receipt of goods |
|
|
Catalyst |
Year-round |
Store at room temperature, away from light and dry |
2 years after receipt of goods |
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 |
Over the years, we take it as our responsibility to provide consumers with excellent Electric Type Large Flow Elastomer Casting Machine Producing Polyurethane Elastomer Products and have conquered consumers with consistent quality. We give competitive price for quality solutions and we are going to make certain your shipment is handled quickly by our logistics department. Since its establishment, our company has developed rapidly and its business has been growing.
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