SAMREAL® 1,4-Butanediol Dimethacrylate 1,4-BDDMA CAS No: 2082-81-7
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Product Name |
1,4-Butanedioldimethacrylate |
Cas No |
2082-81-7 |
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Batch No |
240228 |
Quantity |
20000kg |
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Date of Manufacture |
2024-02-28 |
Expiry Date |
2025-02-27 |
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Test Items |
Specification |
Results |
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Appearance |
Clear liquid |
Passed |
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Purity,% |
90.0 |
95.77 |
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Color,APHA |
100 |
20 |
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Acidity(MAA),% |
≤0.1 |
0.001 |
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Moisture, % |
0.1 |
0.03 |
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Inhibitor(MEHQ),ppm |
70-300 |
100 |
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Conclusion |
The product conforms to China standard |
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1,4-Butanediol Dimethacrylate
1,4-Butanediol Dimethacrylate，Colorless low-viscosity crosslinking agent, with a boiling point of approximately 133 ℃, is widely used in hydrogels, dental resins and optical plastics. It can replace styrene to reduce VOC and shrinkage rate.
Product Details
| Product Name | 1,4-Butanedioldimethacrylate | Cas No | 2082-81-7 |
| Batch No | 240228 | Quantity | 20000kg |
| Date of Manufacture | 2024-02-28 | Expiry Date | 2025-02-27 |
| Test Items | Specification | Results | |
| Appearance | Clear liquid | Passed | |
| Purity,% | 90.0 | 95.77 | |
| Color,APHA | 100 | 20 | |
| Acidity(MAA),% | ≤0.1 | 0.001 | |
| Moisture, % | 0.1 | 0.03 | |
| Inhibitor(MEHQ),ppm | 70-300 | 100 | |
product superiority
1. Bis-functional high reactivity ——Both ends have methyl acrylate structures. The free radical polymerization crosslinking density is high. The curing rate is more than 40% faster than that of single-functional monomers, which can significantly shorten the UV/peroxide curing time.
2. Low viscosity & high dilution capacity ——At 25℃, the viscosity is approximately 5-10 mPa·s, which is much lower than that of DEGDMA and TEGDMA. It can be diluted with a ratio of 30-50% to the high-viscosity resin to reduce the viscosity of the system without affecting the hardness after curing. The amount of filler can be increased by another 10-15%.
3.Mechanical-chemical dual high-performance ——After crosslinking, the hardness (Shore D) is ≥ 85, the bending strength is ≥ 110 MPa, and it can withstand water, alcohol, and alkali scrubbing for more than 500 times; the glass transition temperature is high, and after long-term 100℃ heat aging for one week, the performance retention rate is ≥ 90%.
4. The solidification shrinkage rate is low ——The molecular weight is 226, with a Tg as high as 120-140℃. The polymer volume shrinkage is less than 6%, significantly lower than that of styrene (about 12%). The product dimensions are stable and the internal stress is low, making it suitable for precision casting and optical components.
application scenarios
1. Dental & Medical ——Composite resin, pit and fissure sealant, temporary crown and bridge: High X-ray radiation resistance, wear-resistant, curing depth ≥ 4 mm, clinical operation time shortened by 30%.
2. Polymer materials——As a reaction diluent for unsaturated polyester resins, it is used for cross-linking and curing of plastics and rubber products, enhancing the mechanical properties of the materials. Used for coatings on optical plastics and wire and cable, it enhances insulation and weather resistance.
3. Industrial adhesives and injection molding parts processing ——As an adhesive component, it enhances the bonding strength and chemical corrosion resistance. During the processing of injection molded parts, the material flowability can be adjusted to optimize the molding effect.
FAQ
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