The rapid development of LED industry, greatly boosting the development of upstream material industry, but also further promote the breakthrough in the field of high-end materials. LED lamps use a lot of plastic parts, including LED packaging components, LED optical lens, light scattering element, efficient cooling element, the light reflection and light diffusion plate, etc., and also thermally conductive plastic is increasingly replacing metal parts Applications LED lamps in the thermally conductive component, which includes lamp, cooling and heat lamp cup shell.
From the full life cycle perspective, the organic material is thermally conductive plastic composite is more environmentally friendly than metal materials production consumes less energy, small-scale production process pollution, in line with national energy conservation, energy conservation needs. With LED light to enhance the efficiency and reduce the amount of heat generated, LED cooling requirements will be gradually reduced, thermally conductive plastic radiator will be able to meet the cooling needs of most conventional LED lamps. Is expected soon to obtain a more rapid development, industrial chain will be further clear.
It is understood that the current traditional lamp shell heat material mainly consists of the following three types: metal, ceramic and plastic in general. Relative to the metal materials, thermal plastic with heat evenly, light weight, and high safety factor, design flexibility and other characteristics; with respect to the ceramic, thermally conductive plastic sturdy, easy molding processing, higher design freedom; with respect to general plastic, thermal higher expansion coefficient of plastic.
Compared to traditional metal materials, thermally conductive plastic has many advantages, summed up the following four points:
Aluminum density of 2700kg / m3, the density of aluminum is larger, and the density is usually in the thermally conductive plastic is 1500 ~ 2000kg / m3, the choice of the thermally conductive plastic heat can significantly decrease the illumination component product (about 30% to 50%) so that lighting merchandise lightweight and useful means to cut indirect costs of transport.
2. Planning degree of freedom
DOF planning is an outstanding advantage of the organic thermally conductive plastics. The main way to produce die-cast aluminum radiator is or stretch forming, in the production process more difficult to process than the messy shape. The organic plastic outstanding mobility, can produce very thin parts, as well as planning even more chaotic shape may be further completed product weight. And injection commodity beautiful, good finish, to complete diversified commodity color without the need for subsequent painting, color, and other processes.
3. planning mass production
A thermally conductive plastic can be molded without post-processing, simple plan to complete large batch production, complete planning benefits. Useful information after the cut aluminum extrusion deburring, nickel, etc. after the procedure. Together, the mold production cost compared with aluminum and other materials, long life, reduced cycle times and costs.
4. Security and simplifying power supply configuration
Aluminum radiator due to its high electrical conductivity, if the choice of non-blocking mode power supply through high pressure is difficult to test aspects of the certification. Thermal insulating properties of plastics, in terms of having a high voltage test positive advantage, making the choice of non-blocking mode power production may become a fixture can not only reduce costs, commodity planning was even more delicate, but the main thing is to cut the user the process may occur conductive metal security risks. Safety and environmental protection, recycling can do, good insulation to ensure the safety of its use.
With the Chinese government have given more attention to technological innovation and increase the intensity of investment in terms of special materials, LED materials, especially thermally conductive plastics will have a very good prospect and development space