内蒙古快3

Shenzhen Jun Tai Feng Novel Material co., ltd
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Shenzhen Jun Tai Feng novel material co., ltd

Tel: 0755-29694891 0755-29694892

内蒙古快3Fax: 0755-29694893

Email: szjtf001@126.com

URL: www.scoresfm.com

Address: Shenzhen Bright new District, public-ming potato field PO Community Emerging Industrial Zone A, the first second floor 201


LED silica gel How to choose? Silicone potting, or?

LED silica gel How to choose? Silicone potting, or?


At present, there are three kinds of products in the market, such as epoxy resin potting, polyurethane potting sealant and silicone potting sealant.


These three kinds of products have their own different characteristics:


Epoxy resin potting adhesive, generally for the AB group packaging, products with a better transmittance, usually light transmittance between 85-92%, with a relatively good heap high effect, cured lamp strip appearance bright, radian mellow, can be used in-5 ℃ to 55 ℃, but because of the characteristics of epoxy resin, TG point is lower, Toughness is prone to poor at high temperatures, many times more than 60 ℃, soft light strip softening, resulting in colloid prone to fracture; at the same time, when the temperature is below 5 degrees Celsius, the colloid hardens to brittle, the light strips slightly shaking will appear colloidal peel and brittle fracture phenomenon; light bead long lit 400-700 hours later, The epoxy colloid at the top of the lamp bead turns yellow-brown, resulting in light brightness drop and color temperature change.


Polyurethane potting gum, also known as Pu Gum, generally for AB packaging, product transmittance between 85-92%, after curing the light strip has the good flexibility, after curing the colloid may in 25 ℃ to 95 ℃ between the long-term use, but because the polyurethane colloid hardness cannot achieve very low, the product only can apply to the drop gum type or the half sleeve type soft light strip, As the temperature decreases, the flexibility of the light strip changes greatly, when potting, the FPC surface and environmental humidity requirements are higher, if the humidity is too large, the surface of the product is prone to white mist and adhesion is not enough phenomenon; for a long time outdoor use, colloid usually 2-3 years appear yellowing phenomenon.


Silicone potting, generally for single or AB component packaging, product transmittance is generally 84-92% between, after curing colloid hardness can be adjusted, both can do the results of frozen gel can also be made shoreA30 hardness of the glue, so silicone potting glue can be used for drip-type lamp strips, can also be used for half casing type lamp bar , can also be used for a full set of tube-type light strips, after curing colloid can be used between 45 ℃ to 200 ℃, and with the temperature changes, the product's mechanical and physical properties and optical properties will not appear to change significantly。 Very suitable for Russia, Northern Europe, North America and other cold zone use, silicone potting light strips ozone-resistant, ultraviolet, acid-base and other properties are good, outdoor use can be long-term to maintain the yellowing; machine silicon potting sealant and FPC adhesion force is higher than epoxy, but the heap is slightly lower than the high quality flaws。


From the market development, the trend of silicone potting to replace other products is more and more obvious, if it is necessary in the harsh environment to use the lamp bar must use silicone potting sealant.


June Tai Fung Shenzhen New Materials Co。, Ltd。 was founded in 2009。 is a collection research and development, production and sales of High-tech private enterprises。 Company is located in Shenzhen Bright New District, the public office, CI Tin po Emerging industrial zone。 Adjacent to Hong Kong and Macao, superior geographical location and traffic environment, to provide customers with convenient service!

           

Company's current service brands are: Ebbison photoelectric, three-male aurora, Foshan lighting, Zhao Guang photoelectric, CLS photoelectric, National Starlight and other large and medium-sized well-known corporate brands at home and abroad. Product sales domestic market and exported to Taiwan and other regions.

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