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High-weather-resistant glass fiber reinforced PC material and preparation method thereof

The technology of glass fiber and chopped glass fiber is applied in the field of high-weather-resistant glass fiber reinforced PC material and its preparation, which can solve the problems of high material cost, complicated process and high price, achieve great economic value and social value, and expand application. Scope, the effect of anti-fungal enhancement

Inactive Publication Date: 2017-04-19
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, carbon black as an ultraviolet shielding agent can improve the weather resistance of the material very well, but it must be added in sufficient amount. Most of the obtained products are black products, which have a large limitation on the appearance and color of the parts, and cannot meet the market's demand for light-colored appearance. design needs
However, by adding a large amount of anti-UV additives to improve the weather resistance of the material, the light-colored products obtained can better improve the retention rate of the mechanical properties of the material after aging, but it is difficult to improve the aging discoloration of the product, and it is difficult to inhibit the aging of the product. The hindered amine light stabilizers with better yellowing effect of materials are mostly alkaline, which will promote the degradation of PC. It is difficult to apply to PC material system, which also increases the difficulty of this problem, and the anti-UV additives are expensive, and the cost of materials is high, so it is difficult to accepted by the market
Coating process, the process is cumbersome, and the price is also high
Therefore, there is a lack of solutions for weather resistance and anti-mold in the market for light-colored glass fiber reinforced polycarbonate materials

Method used

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  • High-weather-resistant glass fiber reinforced PC material and preparation method thereof
  • High-weather-resistant glass fiber reinforced PC material and preparation method thereof
  • High-weather-resistant glass fiber reinforced PC material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Weigh the raw materials of each component according to the composition ratio in Table 1, add PC resin, toughening agent, rutile nano-titanium dioxide, antibacterial agent, light stabilizer, lubricant and antioxidant to the high-speed mixer and mix well , control the speed of the high-speed mixer to 500rmp, the mixing temperature to 80°C, and mix for 3 minutes to mix evenly;

[0028] (2) Add 15 parts of glass fibers with a diameter of 7 μm in step (1) to a twin-screw extruder for extrusion and granulation, and control the temperature of each zone (from the feeding port to the die head of the extruder) to 220 ° C, 230°C, 240°C, 255°C, 265°C, extruder strands and pelletize to obtain high weather resistance and anti-mold glass fiber reinforced polycarbonate materials.

[0029] The above product was dried at 85° C. for 5 hours in a blast oven and extruded with an extruder, and the injection molding temperature was 275° C. The injection-molded samples were placed at 50% ...

Embodiment 2

[0031] (1) Weigh the raw materials of each component according to the composition ratio in Table 1, add PC resin, toughening agent, rutile nano-titanium dioxide, antibacterial agent, light stabilizer, lubricant and antioxidant to the high-speed mixer and mix well , add to the high-speed mixer and mix at high speed, control the speed of the high-mixer to 700rmp, the mixing temperature to 40°C, and mix for 3 minutes to mix evenly

[0032] (2) Add the mixed material in step (1) and 25 parts of glass fibers with a diameter of 11 μm to a twin-screw extruder for extrusion and granulation, and control the temperature of each zone (from the feed port to the die head of the extruder) to 220°C , 230 ° C, 240 ° C, 250 ° C, 260 ° C, the extruder strands are pelletized to obtain high weather resistance and anti-mold glass fiber reinforced polycarbonate materials.

[0033] The above product was dried at 85° C. for 5 hours in a blast oven and extruded with an extruder, and the injection mold...

Embodiment 3、4

[0035] (1) Weigh the raw materials of each component according to the composition ratio in Table 1, add PC resin, toughening agent, rutile nano-titanium dioxide, antibacterial agent, light stabilizer, lubricant and antioxidant to the high-speed mixer and mix well , control the speed of the high-speed mixer to 600rmp, the mixing temperature to 60°C, and mix for 10 minutes to mix evenly;

[0036] (2) Extrude the mixed material in step (1) and glass fibers with a diameter of 10 μm through a twin-screw extruder, and control the temperature of each zone (from the feed port to the die head of the extruder) to 230°C , 245 ° C, 250 ° C, 265 ° C, 255 ° C, the extruder strands can be pelletized to obtain high weather resistance and anti-mold glass fiber reinforced polycarbonate material.

[0037] The above product was dried at 85° C. for 5 hours in a blast oven and extruded with an extruder, and the injection molding temperature was 275° C. The injection-molded samples were placed at 5...

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Abstract

The invention belongs to the technical field of high polymer materials, and relates to a high-weather-resistant glass fiber reinforced PC material and a preparation method thereof. The glass fiber reinforced PC material is prepared from the following components in parts by weight: 100 parts of PC resin, 15-50 parts of glass fibers, 5-15 parts of a toughening agent, 0.3-1.5 parts of nano titanium dioxide, 0.3-1.2 parts of an antibacterial agent, 0.2-1.0 part of a light stabilizer, 0.4-1.0 part of a lubricating agent and 0.4-1.2 parts of an antioxidant. The glass fiber reinforced PC material has excellent lasting weather resistance; the color stability of a light-colored product can be guaranteed for a long time; color difference of the material which is subjected to light ageing is reduced remarkably; mould resistance can last for a long time; and mould does not grow even if the material is located in an outdoor environment for a long time. The high-weather-resistant glass fiber reinforced PC material can be widely applied to various fields in the social life such as household appliance shells, packing materials, pipes, building profiles and plates, and has quite high economic value and social value.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a high weather resistance glass fiber reinforced PC material and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is widely used in various fields of social life such as electronic appliances, building materials, packaging, and automobile industry because of its excellent physical and mechanical properties, high impact strength, good electrical properties, and good dimensional stability. One of the polymers with the largest output and widest application at present. Glass fiber reinforced polycarbonate materials can greatly improve the mechanical properties of polycarbonate materials, reduce the thermal expansion coefficient of materials, improve their stress cracking performance, and improve fatigue resistance. They can be used to replace aluminum, zinc and other materials for electrical, instrumentation, Manufacture of various components in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K13/04C08K7/14C08K3/22B29C47/92B29C48/92
Inventor 杨桂生赵敏李兰杰
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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