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点击图片查看原图| 牌号 | EPIKOTE 828，828EL | 产品等级 | 特等级 | 厂家(产地) | 荷兰，美国 |
| 固体含量 | 100（%） | 粘度 | 12-14（mPas） | 用途 | 涂料、油墨 |
| 环氧基团的含量 | 5260-5420 | 色素(Pt-Co) | ＜100 |
EPIKOTE 828：无溶剂型液态环氧树脂，透明性，柔韧性，密着性，耐化学性。
EPIKOTE 828EL：无溶剂型液态环氧树脂，低氯含量，透明性，柔韧性，密着性，耐化学性。
EPON™ Resin 828
Product Description
EPON™ Resin 828 is an undiluted clear difunctional bisphenol A/epichlorohydrin derived liquid epoxy resin. When cross-linked or hardened with appropriate curing agents, very good mechanical, adhesive, dielectric and chemical resistance properties are obtained. Because of this versatility, EPON Resin 828 has become a standard epoxy resin used in formulation, fabrication and fusion technology.
Benefits
Fiber reinforced pipes, tanks and compositesTooling, casting and molding compoundsConstruction, electrical and aerospace adhesivesHigh solids/low VOC maintenance and marine coatingselecrical encapsulations and laminatesChemical resistant tank linings, flooring and groutsbase resin for epoxy fusion technologySales Specification
Property | Units | Value | Test Method/Standard |
Weight per Epoxide | g/eq | 185 – 192 | ASTM D1652 |
Viscosity at 25°C | P | 110 – 150 | ASTM D445 |
Color | Gardner | 1 max. | ASTM D1544 |
Typical Properties
Property | Units | Value | Test Method/Standard |
Density at 25°C | lb/gal | 9.7 | ASTM D1475 |
Denisty at 25°C | g/ml | 1.16 | |
Vapor pressure @ 25°C (77°F) | mm Hg | 0.03 | |
Refractive index @ 25°C (77°F) | 1.573 | ||
Specific heat | BTU/lb/°F | 0.5 | |
Processing/How to use
General Information
The low viscosity and cure properties of EPON Resin 828 allow its use under various application and fabrication techniques including:
| Spraying and brushing | Pultrusion |
| Filament winding | Casting |
| Pressure laminating | Molding |
| Vacuum bag laminating | Toweling |
Curing Agents
EPON Resin 828 can be cured or cross-linked with a variety of curing agents depending on properties desired in the finished product and the processing conditions employed. Some commonly used curing agents, recommended concentrations, typical cure schedules employed in major end-use applications, plus sources for these curing agents are displayed in Table 1.
Performance Properties
Perfomance Characteristics of Cured EPON Resin 828
Mechanical Properties
High performance, high strength materials are obtained when this resin is cured with a variety of curing agents. Unfilled systems in common use have tensile values greater than 10,000 psi (69 MPa) with modulus values greater than 400,000 psi (2750 MPa). Such systems are normally very rigid.If greater flexibility is needed systems can be formulated to provide up to 300% elongation.
Adhesive Properties
One of the most widely recognized properties of cured EPON Resin 828 is strong adhesion to a broad range of substrates. Such systems exhibit shear strength of up to 6,000 psi (41 Mpa). One factor which contributes to this property is the low shrinkage shown by these systems during cure. Compared to other polymers, epoxy resins have low internal stresses resulting in strong and durable finished products.
Electrical Properties
EPON Resin 828 cured systems have very good electrical insulating characteristics and dielectric properties. For example, systems can be obtained with anhydride and amine curing agents having volume resistivities up to 1 x 10E16 ohm-cm, dielectric constants of 3-5 and dissipation factors of 0.002 to 0.020 at ambient conditions. Electrical encapsulations, laminates and molding compounds are frequently based on EPON Resin 828.
Chemical Resistance
Cured EPON Resin 828 is highly resistant to a broad range of chemicals, including caustic, acids, fuels and solvents. Chemically resistant reinforced structures and linings or coatings over metal can be formulated with EPON Resin 828.
Formulating Techniques
The primary components of a thermosetting resin formula are the epoxy resin and the hardener or curing agent. However, in practice other materials are normally incorporated to achieve special properties. For example, inert fillers such as silicas, talcs, calcium silicates, micas, clays and calcium carbonate can be added to further reduce shrinkage and improve dimensional stability. Also, reactive diluents can be added to EPON Resin 828 to reduce viscosity. The effect on viscosity by adding such materials is shown in Figure 1.
Table 1 /Curing Agents for EPON™ 828
Curing Agent1 | PhysicalState | RecommendedConcentration Range, phr2 | Typical Cure Schedule Time °C (°F) | Deflection Temperature 3°C (°F) | Applications4 | Suppliers5 |
Aliphatic Amines | ||||||
EPIKURE™ 3223 (DETA) | Liquid | 12 | 7d, 25(77) | 120(250) | ABCDEFHI | 5 |
EPIKURE 3234 (TETA) | Liquid | 13 | 7d, 25(77) | 120(250) | ABCDEFHI | 5 |
EPIKURE 3200 (AEP) | Liquid | 22 | 24h, 25(77) & 1h, 150(300) | 120(250) | BCEFGH | 5 |
EPIKURE 3270 | Liquid | 75 | 14d, 25(77) | 56(133) | ABCDEFHI | 5 |
EPIKURE 3271 | Liquid | 18 | 14d, 25(77) | 66(151) | ABCDEFHI | 5 |
EPIKURE 3274 | Liquid | 40 | 14d, 25(77) | --- | ABCDEFHI | 5 |
EPIKURE 3230 | Liquid | 35 | 7d, 25(77) | 68(155) | ABCDEFHI | 1 |
D-400 Type PEA | Liquid | 55 | 30 min, 115(240) | 31(88) | ABCEFH | 1 |
Cycloaliphatic Amines | ||||||
EPIKURE 3370 | Liquid | 38 | 7d, 25(77) | 56(133) | ABCDEFHI | 5 |
EPIKURE 3382 | Liquid | 63 | 7d, 25(77) | 63(145) | ABCDEFHI | 5 |
EPIKURE 3383 | Liquid | 60 | 24h, 25(77) & 2h, 100(212) | 54(129) | ABCDEFHI | 5 |
Polyamides | ||||||
EPIKURE 3115 | Liquid | 120 | 1h, 100(212) | 85(185) | AB | 5 |
EPIKURE 3125 | Liquid | 90 | 7d, 25(77) | 90(195) | ABCEFH | 5 |
EPIKURE 3140 | Liquid | 75 | 7d, 25(77) | 115(240) | ABCEFH | 5 |
Amindoamines | ||||||
EPIKURE 3015 | Liquid | 50 | 16h, 25(77) & 2h, 93(200) | --- | ABCDEFHI | 5 |
EPIKURE 3055 | Liquid | 50 | 16h, 25(77) & 2h, 93(200) | 67(153) | ABCDEFHI | 5 |
EPIKURE 3072 | Liquid | 35 | 14d, 25(77) | 59(138) | ABCDEFHI | 5 |
Aromatic Amines | ||||||
EPIKURE W | Liquid | 5 | ||||
metaphenylenediamine (MPDA) | Solid | 14 | 2h, 80(175) & 2h, 150(300) | 150(300) | BCDGHI | 3 |
Methylene dianiline (MDA) | Solid | 27 | 2h, 80(175) & 2h, 150(300) | 160(320) | BCDEGHI | 13 |
Diaminodiphenyl Sulfone (DADS) | Solid | 25 | 5h, 125(257) & 1h, 200(392) | 170(350) | BCDGHI | 2, 13 |
Table 1 /Curing Agents for EPON™ 828, cont.
Curing Agent1 | PhysicalState | RecommendedConcentration Range, phr2 | Typical Cure Schedule Time °C (°F) | Deflection Temperature 3°C (°F) | Applications4 | Suppliers5 |
Anhydrides | ||||||
Methyl tetrahydrophthalic Anhydride (MTHPA) | Liquid | 80 | 2h, 120(250) & 2h, 150(300) | 130(266) | BCDGHI | 9, 11, 14 |
NADIC Methyl Anhydride (NMA) | Liquid | 90 | 1h, 120(250) & 2-24h, 260(500) | 180(356) | BCDGHI | 9, 14 |
Hexahydrophthalic Anhydride (HHPA) | Solid | 80 | 1h, 80(175) & 2h, 150(300) | 130(265) | BCDGHI | 8, 12, 14 |
Catalysts and Miscellaneous | ||||||
2-Ethyl- 4-Methyl Imidazole (EMI-24) | metastable Liquid | 3 | 4h, 50(122) & 2h, 170(340) | 170(340) | BCDGHI | 15, 16 |
BF3-Monoethylamine (BF3-MEA) | Liquid | 3 | 1h, 120(250) & 2h, 170(340) | 170(340) | BCDGHI | 17 |
Diethylaminopropylamine6 | Solid | 6 | 30 min, 115(240) | 100(212) | ABC | 6 |
Dicyandiamide | Solid | 4 | 1h, 177(350) | 150(300) | BCDGHI | 18, 19 |
1Cures can beeffectedwith these curing agents over a wide range of temperatures. Higher temperatures yield shorter cure times and highestTg.
2Parts of curing agent per 100 parts of resin.
3Systems cured at room temperature were post cured at elevated temperature to achieve deflection values.
4Application codes: A - Coatings; B - Adhesives; C - Castings; D - Moldings; E - Flooring; F - Paving; G - Electrical Laminates; H - Structural Laminates; I-Filament Winding.
5Supplier Code:
1. Huntsman Chemical
2. RSA Corporation
3. E.I. DuPont de Nemours &Co., Chemicals & Pigments Dept.
4. Harshaw Chemical Company
5. Momentive Specialty Chemical
6. BASF Corporation
7. American Cyanamid - Industrial Chemical Div.
8. Milliken & Company
9. Lindau Chemicals, Inc.
10. Anhydrides and Chemicals, Inc.
11. Dixie Chemical Co., Inc.
12. Buffalo Color Corp.
13. Air Products and Chemicals, Inc.
14. Lonza
15. Interchem
16. Polyorganix
17. Atotech
18. SKW Trotsbery
19. Ashland Chemical
6Dimethylamino propylamine may be substituted at expense of slightly reduced pot life. Sources are 2 and 16.
Figure 1 /Viscosity at 25 °C of EPON™ Resin 828 blends with various diluents
Fusion Technology
EPON Resin 828 is the product of choice for a resin chemist using a specific fusion catalyst when processing proprietary solid epoxy resins or epoxy esters. Upon request, Momentive Specialty Chemicals can provide EPON Resin 828 exhibiting extremely low hydrolyzable and total chlorine, two end groups that may be deleterious to resin curing and long term performance in electrical uses.
FDA Status
Provisions are made in the FDA regulations for the use of EPON Resin 828, when properly formulated, applied and cured, for food contact applications under Title 21 Code of Federal Regulations 175.300. The regulations should be consulted for complete details. In particular, we direct your attention to subparagraph (b) of 21 CFR 174.5 and the general provisions applicable to indirect food additives listed there.
Identification and Classification
Chemical Abstract Service Registry Number:25068-38-6 (EPA/TSCA inventory designation)
Generic name:Liquid Bisphenol A Epichlorohydrin based epoxy resin.
Chemical designation:Phenol, 4,4O - (1-methylethylidene) bis-polymer with (chloromethyl) oxirane.
Figure 2 /Viscosity - temperature profile for EPON™ Resin 828
Figure 3 /Specific gravity - temperature profile for EPON™ Resin 828
Formulation and Application Information
For additional performance characteristics information covering adhesives, laminating, casting and molding applications, consult bulletin SC:67, entitled "EPON Resin Structural Reference Manual." For epoxy resin amine-cured coatings, consult bulletin SC:193, entitled "Formulating Amine-Cured Coatings with EPON Resin."
Figure 4 /Viscosity - temperature profile (for 5 samples of EPON™ Resin 828 ranging in viscosity from 110-150 poise)
Safety, Storage & Handling
Please refer to the MSDS for the most current Safety and Handling information.
Please refer to the Momentive web site for Shelf Life and recommended Storage information.
EPON Resin 828 is an undiluted liquid epoxy resin that is available in tank cars, tank trucks and 500 pound net closed head drums. EPON Resin 828 is normally shipped in bulk from 150 °F (66 °C) to 180 °F (82 °C) and can be stored at 120-140 °F (49-60 °C) for ease of handling. The viscosity/temperature profile and the specific gravity/temperature profile for EPON Resin 828 are displayed in Figures 2 and 3 respectively for your guidance.
NOTE OF CAUTION:When checking viscosity of EPON Resin 828 incoming samples, we caution you to make certain that the product is maintained at 25 +/- 0.01 °C before testing. You will note in Figure 4 that EPON Resin 828 can vary in viscosity by 10-15 poise for each degree in temperature the product varies from 25 °C.
Exposure to these materials should be minimized and avoided, if feasible, through the observance of proper precautions, use of appropriate engineering controls and proper personal protective clothing and equipment, and adherence to proper handling procedures.None of these materials should be used, stored, or transported until the handling precautions and recommendations as stated in the Material Safety Data Sheet (MSDS) for these and all other products being used are understood by all persons who will work with them.Questions and requests for information on Momentive Specialty Chemicals Inc. ("Momentive") products should be directed to your Momentive sales representative, or the nearest Momentive sales office. Information and MSDSs on non-Momentive products should be obtained from the respective manufacturer.
Packaging
Available in bulk and drum quantities.
因迈图环氧属于规格品，恕未能免费提供样品，若您需要订购样品或散货，请来电或旺旺沟通洽谈！其他交易事项和技术参数未尽说明的，也请来电或旺旺沟通洽谈！
EPON 828产地为美国，EPIKOTE 828产地为荷兰，我司出售的产品为EPIKOTE 828，以上资料仅供参考。
以上报价是整桶225kg的售价，散货价格另定。
