Halogen-free flame-retardant mildew-proof nylon material as well as preparation method and application thereof
A technology of nylon and antifungal agent, which is applied to nylon materials to prepare multi-layer antifungal and flame retardant structures. In the field of halogen-free flame retardant and antifungal nylon materials and their preparation, it can solve the problem of reducing the mechanical properties of nylon materials and nylon products. Reduced mechanical properties, affecting the performance of nylon products, etc., to achieve the effect of improving service stability, excellent mildew resistance, good long-term flame retardancy and mildew resistance
Active Publication Date: 2022-06-24
GUILIN UNIVERSITY OF TECHNOLOGY +1
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Problems solved by technology
However, as a filling flame retardant, MCA has poor compatibility with nylon. If it is added in a large proportion, it will easily reduce the mechanical properties of nylon materials.
At the same time, during the long-term service of nylon materials, especially in high-temperature and high-humidity environments, MCA can easily migrate to the surface of nylon materials, resulting in a further decline in the mechanical properties of nylon products
Method used
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preparation example Construction
[0035] In some embodiments, the preparation method specifically includes:
[0036] Mix nylon matrix resin, mildew inhibitor, flame retardant and auxiliary agent uniformly to form a mixture;
[0037]The mixture is heated to a selected temperature, melted and extruded, and after being extruded and granulated by a screw, the halogen-free flame-retardant and mildew-proof nylon masterbatch is obtained by injection molding or blow molding to obtain the halogen-free flame-retardant and mildew-proof nylon. Material. Wherein, the selected temperature is 230-270°C.
[0038] The antifungal agent ZIF-8 used in this application has a porous structure as a metal organic framework material, so the specific surface area is extremely high (1500m 2 / g or more), and has good high temperature stability (decomposition temperature is not lower than 400 ℃), when it is melt-blended with nylon material, it can be evenly distributed in the melt, has good compatibility with nylon material, and is stab...
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Abstract
The invention discloses a halogen-free flame-retardant mildew-proof nylon material as well as a preparation method and application thereof. The halogen-free flame-retardant mildew-proof nylon material comprises nylon matrix resin, a mildew inhibitor, a flame retardant and an auxiliary agent which can be selectively used or not used, wherein the mildew inhibitor is ZIF-8. The halogen-free flame-retardant mildew-proof nylon material provided by the invention is high in flame retardance, good in mechanical property, excellent in mildew resistance, high in service stability and simple to process, can be obtained only through melt extrusion, and can fully meet the flame-retardant and mildew-proof requirements in the fields of electronics, electrics, high-end household appliances and the like.
Description
technical field [0001] The present application relates to a nylon material, in particular to a halogen-free flame-retardant and mildew-proof nylon material and a preparation method and application thereof, such as the application in the preparation of a multi-layer mildew-proof and flame-retardant structure, which belongs to the field of functional materials. Background technique [0002] Nylon (polyamide, PA), as an engineering plastic, is widely used in automobiles, electrical appliances, etc. because of its high mechanical properties, excellent high and low temperature resistance, good chemical resistance and easy molding. field. However, nylon will produce a large number of flaming droplets during the combustion process, which is easy to cause secondary combustion, so it needs to be flame-retardant modified in the use of nylon materials. [0003] At present, flame retardant nylon is generally prepared by adding brominated flame retardants to nylon materials. Common bro...
Claims
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IPC IPC(8): C08L77/06C08L77/02C08L87/00C08K5/3492
CPCC08L77/06C08L2201/02C08L2201/22C08L77/02C08L87/00C08K5/34928
Inventor 卢光明倪金平周立汤兆宾
Owner GUILIN UNIVERSITY OF TECHNOLOGY