Light-shielding PC plastic with high ultrasonic welding strength and its preparation and application
An ultrasonic welding and strength technology, applied in the field of shading PC plastics, can solve the problems of low welding strength of shading PC materials and poor ultrasonic welding strength of shading PC, so as to improve product safety and service life, improve ultrasonic welding strength, and improve bending. the effect of strength
Active Publication Date: 2022-08-05
中广核俊尔(浙江)新材料有限公司 +1
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Problems solved by technology
[0007] Aiming at the above-mentioned technical problems and the deficiencies in this field, the present invention provides a light-shielding PC plastic with high ultrasonic welding strength, which overcomes the The problem of poor ultrasonic welding strength of light-shielding PC existing in the prior art is solved, and the problem of low welding strength of light-shielding PC material is solved when the welding equipment and process cannot be changed. The ultrasonic welding strength of the light-shielding PC plastic of the present invention is increased. Pulling force greater than 800N
Method used
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[0034]Weigh the components shown in Table 1 in parts by mass: PC resin, welding enhancer, lubricant, antioxidant, and other additives in a high-agitator mixer for 2 minutes, then add titanium dioxide and then mix at a high speed For 6 minutes, keep the temperature at 115° C. to obtain a premix, which is extruded, plasticized and granulated by a twin-screw machine, and evacuated to obtain a light-shielding PC. The specific performance test data are listed in Table 1.
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Abstract
The invention discloses a light-shielding PC plastic with high ultrasonic welding strength and its preparation and application. The light-shielding PC plastic is calculated based on the total mass of raw materials as 100%, and the raw material composition includes: PC resin 71%-92.7%, welding enhancer 1%-3%, titanium dioxide 6%-25%, lubricant 0.1%-1%, Antioxidant 0.1%~1%, other additives 0~10%; Welding enhancer is phosphazene compound. The preparation method includes the following steps: (1) stirring and mixing PC resin, welding enhancer, antioxidant, lubricant and other additives optionally added, keeping the temperature at 110-120° C., then adding titanium dioxide and mixing evenly to obtain Mixed material; (2) The mixed material is plasticized and extruded by a twin-screw extruder, and vacuumized to obtain a light-shielding PC plastic with high ultrasonic welding strength. The light-shielding PC plastic is suitable for preparing LED electrical appliances.
Description
technical field [0001] The invention relates to the field of light-shielding PC plastics, in particular to a light-shielding PC plastic with high ultrasonic welding strength and its preparation and application. Background technique [0002] In recent years, the global energy revolution has become popular, and open source and cost reduction have become the mainstream, which has led to the wide application of energy-saving LED products in urban, real estate lighting, high-speed rail transportation and other fields. The PC (polycarbonate) material is the main material required for the manufacture of LED products. In many occasions, these electrical components require high shading to ensure the safety of consumers' eyes and the safety of consumers' electricity use. LED manufacturers generally need to weld shading PC material components in order to ensure the safety of consumers' use of electricity and avoid the impact of moisture on the life of electrical appliances and the pote...
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IPC IPC(8): C08L69/00C08L27/18C08L25/12C08K9/10C08K3/22C08K5/5399
CPCC08L69/00C08K2003/2241C08L2203/20C08L2201/10C08L27/18C08L25/12C08K9/10C08K3/22C08K5/5399
Inventor 周国剑陈晓敏王浩姜小龙叶文琼李中诚
Owner 中广核俊尔(浙江)新材料有限公司