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• High transmittance, non-irritating odor
• High purity, colorless, transparent
* Have a certain adhesive for high-power LED package filled lens
Curing process
* Room temperature curing, curing by-product precipitation-free
* Platinum catalytic process of hydrogen silane
* Addition reaction (two component) Mixing ratio A: B = 1:1 (weight ratio)
Cured resin
* Low water absorption
• High optical transparency
• High dimensional stability
A range of applications
This product is a high-purity two-component heat curing silicone materials. Mainly used in high-power LED Lens filled manufacturing, the role of silicone chip also includes a mechanical protection, stress release, and as a light guide structure, strengthening heat, to reduce the chip junction temperature and improve the LED performance. To improve the reliability of LED packaging, silica gel also has low moisture absorption, low stress, anti-aging properties. The LED has better durability and reliability.
Second, the process that
2.1 The substrate surface should be clean and dry. Substrate surface can be heated to remove moisture; can use naphtha, methyl ethyl ketone oxime (MEK) or other appropriate solvent cleaning the substrate surface. There should not be used for substrate dissolution or corrosion of the solvent, should not use a residual solvent.
2.2 In accordance with the recommended mixing ratio - A: B = 1:1 (weight ratio), accurately weighed into a clean glass container and mix evenly. Mixed with high-speed mixing equipment, the heat generated by high-speed mixing has the potential to increase the temperature of gel to shorten the time.
2.3 in the fall of 10mmHg vacuum bubbles. Generally emerge in the distribution of bubble packaging material before. Allocated according to need after the procedure can increase the bubble off.
2.4 To ensure the operability of the compound, A, B mixture used in the 60 minutes.
2.5 the best conditions for curing and cured at 25 ℃ for 4 hours, 3-curing, completely cured for 24 hours; may 40 ℃ -50 ℃ heat curing for 2 hours. When the curing temperature is below 25 ℃, appropriate to extend the curing time or curing temperature will help to improve the product fully cured.
Third, the technical parameters
Item
Number of values
Uncured properties
Appearance
Transparent flow of liquid
YL-8601A group were 25 ℃ (mPa.s)
960
YL-8601B group were 25 ℃ (mPa.s)
610
YL-8601A density
1.05
YL-8601B density
1
Mixture of 25 ℃ (mPa.s)
800
Mixed index (ND25)
1.5
Properties after curing
Cured state
Gelatinous (jelly type)
Cone penetration
62
Transmission rate% (wavelength 450nm 1mm thick)
99.1
Volume resistivity
1 × 1015
Dielectric constant (MHz)
3.5
Dissipation factor (MHz)
0.003
Ion content in ppm
Na +
0.2
K +
0.6
Cl-
0.5
Fourth, product packaging
4.1 The product, A, B two-component 1:1 packaging.
4.2 The product with glass or plastic bottle, 500 ml packaging specifications.
4.3 The product packaging indicate the name, brand name, batch number, weight, manufacturer, production date.
V, storage shelf
5.1 The product should be kept below 20 ℃, avoid direct sunlight, dry and ventilated.
5.2 Any unused product should be re-sealed, the proposed nitrogen filled dry and clean after the sealed.
5.3 The product from the shelf for the 12 months from the date of manufacture. Stored at 0 ℃ or lower temperature, appropriate to extend the shelf.
High-power LED Lens fill special silica gel (two-component silicone)
