European LED (Light-emitting Diode) pendant lamp with good heat-dissipation effect
A technology of LED chandelier and LED light source, which is applied in the direction of lamp shades, lighting and heating equipment, and parts of lighting devices, etc., which can solve the problems of easy damage during transportation or use, affecting the service life of LED lights, and poor impact resistance. Excellent tensile strength and elongation at break, excellent hydrolytic stability, and extended service life
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0032] Step A. Preparation of preform: Take 20-30 parts of fatty acid calcium by weight, heat to 150-170°C, then add 20-30 parts of silica powder and 0.5-1 part of glass fiber, stir evenly, and cool Afterwards, the modified powder is obtained; the modified powder is mixed with 10-20 parts of polyethylene in the mixer, and then 5-10 parts of ethylene bis-stearamide and 5-10 parts of chlorinated polyethylene are added. Mix uniformly after heating up, and cool to room temperature to obtain a preform;
[0033] Step B. Combine 40-60 parts of preform in step A with polycarbonate, 3-5 parts of butanediol diacrylate, 0.5-1 part of antioxidant, 0.5-1 part of silane coupling agent, 0.5 part of lubricant -1 part, mix well to obtain a mixture;
[0034] Step C: Send the mixture into a twin-screw extruder for extrusion and granulation.
[0035] The heat dissipation coating 5 in the present invention includes the following components in parts by weight:
[0036]
[0037]
[0038] The polycarbonate...
Embodiment 1
[0048] The method for preparing impact-resistant polycarbonate of the present invention includes the following steps:
[0049] Step 1. Preparation of preform: take 20Kg of fatty acid calcium, heat to 150℃, then add 20Kg of silica powder and 0.5Kg of glass fiber, stir evenly, and cool to obtain modified powder; then modify the powder Initially mix with polyethylene 10Kg in a mixer, then add 5Kg of ethylene bis-stearamide and 5Kg of chlorinated polyethylene, mix well after heating up, and cool to room temperature to obtain a preform. The length of the glass fiber is 10~ 500 microns;
[0050] Step 2: Mix the preform, 40Kg of polycarbonate, 3Kg of butanediol diacrylate, 0.5Kg of antioxidant, 0.5Kg of silane coupling agent KH-5700.5Kg, and 0.5Kg of lubricant to obtain a mixture; The antioxidant is antioxidant 1010;
[0051] The third step is to feed the mixture into a twin-screw extruder for extrusion and granulation, that is, the extrusion temperature of the twin-screw extruder is 190°...
Embodiment 2
[0053] The method for preparing impact-resistant polycarbonate of the present invention includes the following steps:
[0054] Step 1. Preparation of the preform: take 30Kg of fatty acid calcium, heat it to 170℃, then add 30Kg of silica powder and 1Kg of glass fiber, stir evenly, and cool to obtain modified powder; then combine the modified powder with Polyethylene 20Kg is initially mixed in the mixer, then 10Kg of ethylene bisstearic acid amide and 10Kg of chlorinated polyethylene are added, mixed evenly after raising the temperature, and cooled to room temperature to obtain a preform. The length of the glass fiber is 10-500 Micron
[0055] Step 2. Mix the preform, 60Kg of polycarbonate, 5Kg of butanediol diacrylate, 1Kg of antioxidant, KH-5701Kg of silane coupling agent, and 1Kg of lubricant, to obtain a mixture; the antioxidant Is antioxidant 1010;
[0056] The third step is to feed the mixture into a twin-screw extruder for extrusion and granulation, that is, the extrusion temp...
PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More