A kind of edible oil-resistant high-impact heat-resistant polycarbonate material and its preparation method
A technology of polycarbonate and high impact resistance, which is applied in the field of edible oil-resistant high-impact heat-resistant polycarbonate materials and its preparation, can solve the problem of unqualified 125°C heat-resistant ball pressure test, which affects household and household appliances, and meets the requirements of Without problems such as the use environment, it can achieve the effects of improving strength, impact resistance, and edible oil resistance.
Active Publication Date: 2022-05-06
GUANGDONG KUMHO SUNNY POLYMER MATERIAL
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Problems solved by technology
[0003] Although polycarbonate has many of the above advantages, it is very sensitive to cooking oil and other oils. Once its parts come into contact with oil, it is prone to stress cracking, which seriously affects household and home appliances, such as switch panels, range hood panels and The safety of polycarbonate products such as oil boxes in the kitchen environment
[0004] In the prior art, PET-modified polycarbonate is used to improve the chemical resistance of polycarbonate. It needs to add a large proportion of PET to achieve the effect, which leads to a significant decrease in the heat resistance of the material, making PET-modified polycarbonate materials The 125°C heat-resistant ball pressure test failed, and could not meet the requirements of the use environment
Method used
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[0031] The technical solutions of the present invention will be further described below in combination with specific embodiments.
[0032] Examples and comparative examples
[0033] The edible oil-resistant high-impact heat-resistant polycarbonate material of each embodiment and comparative example was prepared according to the following steps:
[0034] S1) Weigh polycarbonate, siloxane copolymerized polycarbonate, epoxy-modified silicon-acrylic acid copolymerized resin, antioxidant and lubricant according to parts by weight, place them in a mixer and mix them evenly to obtain a mixture ;
[0035] S2) The mixture obtained in S1) is sent into a twin-screw extruder through a metering device, and under the conveying, shearing and mixing of the screws, the materials are melted and mixed, melted and extruded, cooled and granulated to obtain the resistant Edible oil high impact heat resistant polycarbonate material. The temperature of the twin-screw extruder from the feeding port...
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Abstract
The invention discloses an edible oil-resistant high-impact and heat-resistant polycarbonate material and a preparation method thereof. The raw material composition comprises: 67-97 parts of polycarbonate; siloxane copolymerized polycarbonate 0-30 parts; epoxy modified silicon-acrylic acid copolymer resin 3-20 parts; antioxidant 0.1-1 part; lubricant 0.1-1 part. The edible oil-resistant high-impact and heat-resistant polycarbonate material of the present invention not only has good edible oil resistance, but also maintains good impact resistance and heat resistance, and has low material cost. The invention also proposes a preparation method of the edible oil-resistant high-impact and heat-resistant polycarbonate material. The preparation method is simple in process and has good cost advantages.
Description
technical field [0001] The invention relates to the technical field of polymer materials, in particular to an edible oil-resistant high-impact and heat-resistant polycarbonate material and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is an amorphous thermoplastic engineering plastic with excellent optical transparency, excellent impact toughness and heat resistance. It has been widely used in electronic appliances, home appliances, aerospace and other fields. [0003] Although polycarbonate has many of the above advantages, it is very sensitive to cooking oil and other oils. Once its parts come into contact with oil, it is prone to stress cracking, which seriously affects household and home appliances, such as switch panels, range hood panels and The safety of polycarbonate products such as oil boxes in the kitchen environment. [0004] In the prior art, PET-modified polycarbonate is used to improve the chemical resistance of polycarbonate....
Claims
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IPC IPC(8): C08L69/00C08L83/06
CPCC08L69/00C08L2201/08C08L2205/025C08L2205/03C08L2201/10C08L83/06
Inventor 王敏查超单桂芳周霆辛敏强
Owner GUANGDONG KUMHO SUNNY POLYMER MATERIAL