I. Introduction: (transparent)

800A / B This product is high-temperature curing epoxy resin materials, mainly used in ordinary light-emitting diode package. This product weathering performance, long-term outdoor use no discoloration.

Second, the use of technology:

a) A material placed before use 75 ~ 80 ℃ oven pre-baked, pre-drying time is generally two hours or more. Maximum temperature in winter take warm, warm summer temperatures get lower.

Light-emitting diode (LED)

b) A material will be pre-baked in accordance with the ratio of the ingredients, will be with a good A / B material, stir for 5 minutes in a vacuum defoaming, no vacuum can also be directly encapsulated, the encapsulating a good product directly into the curing oven for curing.

c) Operating procedures:

l in the ingredients, please note the error ratio can not exceed ± 2%, if the B result in material directly below normal yellowing LED Tg point temperature is low, if the B material will cause the high side LED crisp phenomenon. In the mixing process, if the A / B feed mixing uniformity in the curing process not produce a lot of bubbles and fluorescent tubes are not part of some yellowing yellowing phenomenon.

l in the ingredients, every time with the amount of plastic I do not recommend more than 2KG, the mixture of epoxy resin and curing agent will produce exothermic chemical reaction, the total weight of plastic with more A / B group were more easily lead to the curing reaction. In order to avoid with a good A / B material the use of the curing reaction occurs, I should pay attention to the ingredient recommended by the weight of ingredients A and Preheating temperature.

Third, the conventional performance:

Item
 Units or conditions
800A / B
 
Mixing ratio
 Weight ratio
 100:100
Use of time
 40 ℃, 40g, hrs (double viscosity)
 > 2
 
Curing conditions
 130 ~ 140 ℃, min
 30 to 40 minutes stripping, such as curing time may result in difficulty beyond the stripping phenomenon, aging temperature: 130 ℃, 5 ~ 6 小时
 
 

Fourth, the use of ratio and curing conditions:

Test Project
 Test methods / conditions
 800A
  800B
 
   Appearance
 Head Measurement
 Purple liquid
 Light yellow transparent liquid
 
   Viscosity
 40 ℃ / mpa.s
 1200 ~ 1500
 35 ~ 55
 
   Density
 25 ℃ ~ 40 ℃ / g/cm3
 1 ~ 1.2
 1 ~ 1.2
 
   Shelf life
 Room ventilation
 6 months
 6 months
 
 

Fifth, after curing characteristics:

Item
 Units or conditions
 800A / B
 
Hardness
 shore-D
 > 86
 
Dielectric Strength
 25 ℃, kv / mm
 > 25
 
Absorbent
 25 ℃ / 24h,%
 <0.1
 
TG values
 ℃
 > 145

VI, packaging and transportation: The product packaging A / B material to 5kg plastic pail; 20KG / box, this product is not a normal product transportation of dangerous goods.

VII Storage: below 25 ℃, storage indoor ventilation.

Note: The above performance data for the product test environment temperature and humidity was 70%, the temperature is 25 ℃ testing data, only for reference customers, and can not guarantee that each data can be fully met all of the measured data, customers use subject to the measured data.