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Chemical name: Bis(N,N '-di-ethylhydroxy)adipoyl amide
Chinese name: tetrahydroxyethyl adipamide
CAS No. : 6334-25-4
Subformula: C14H28N2O6
Subsize: 320.38
金彩汇Structural formula:
1. nontoxicity
金彩汇2. efficient
RT-52 CAS :6334-25-4 is a crosslinking curing agent for thermoplastic solid powder coatings. The product is low toxicity, no irritation to the eyes and skin, and is regarded as a green environmental protection product. As an environmentally friendly coating, it is a relatively new and rapidly developing branch of coatings.
Index name | unit | content |
Fusing point | [°C] | 120-126. |
金彩汇Drying loss | [%] | 金彩汇0.5 or less |
0H value | mgKOH/g | 600-725. |
金彩汇Chemical name | Tetrahydroxyethyl adipamide |
appearance | White powder |
Shelf life (stored in a dry place at 0-30℃) | From date of delivery. 12 months |
Test item | 金彩汇Test method | Numerical value |
金彩汇Bending strength | ISO1519 | ≤ 2.0 |
Pencil hardness | ASTMD3363 | ≥ H |
金彩汇Impact strength | ISO6272 | 50 |
60℃ gloss | GB/T9754 | ≥ 90 |
Accelerate aging. (800 hrs) | GB/T186 | ≤ 5.0% |
Film thickness (mm) | - | 50-100. |
Applications include: construction industry, outdoor furniture, home appliance industry, electronic products, Marine anticorrosion and automotive industry.
1. Resin: P855, P865 of DSM, CC7630, CC7618, CCE37498 of Cytec, etc.
金彩汇2. Quantity: 4-6%.
3. Curing conditions: 180℃/15min or190℃/10-12min.
4. Suggested formula:
Content | Wt(%) |
金彩汇Resin (CC7630 of Cytec) | 95.0 |
Curing agent (Aplus 552) | 5.0 |
Levelling agent | 1.5 |
defoamer | 0.5-1.0 |
Titanium dioxide | 20 to 50 |
Precautions for use
金彩汇1. Matching problem with polyester resin
Due to the faster reactivity of RT-52, it is not suitable to use the traditional TGIC solidified polyester, and the special polyester of RT-52 should be selected.
金彩汇2. Pinhole and yellowing resistance of the coating film
When RT-52 is cured with polyester, water molecules are produced, and the surface of the film is easy to produce pinholes and other defects. Ordinary polyester is not suitable for thick coating of more than 100μm. In addition, adding about 0.5% degassing agent to the formulation can achieve the effect of inhibiting the film pinholes. Considering the effect of benzoin on the yellowing of the film, the amount of benzoin is controlled at about 0.3% of the total film forming material, and the amount of use is minimized. When producing white or light-colored powder, the antioxidant of about 0.5% is added to the formula, which can improve the yellowing resistance of the film.
3, powder moisture absorption powder problem
Since RT-52 is a hydrophilic compound, storage and preparation of powder coating storage, should pay attention to waterproof, moisture-proof. The powder is not good after moisture absorption, and the adhesion of the film is poor.
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