Outdoor glass fiber reinforced mildewproof and antibacterial poly carbonic acid resinous polymer

Abstract

An outdoor glass fiber reinforced mildewproof and antibacterial poly carbonic acid resinous polymer is characterized by comprising the following materials in parts by weight: 60 parts of polycarbonate (PC), 30 parts of alkali-free short glass fiber, 1-20 parts of flexibilizer, 1-10 parts of flame retardant, 0.1-5 parts of a mildewproof and antimicrobial agent and 0.1-5 parts of an anti-oxidant; the mildewproof and antimicrobial agent is at least one of silicone quaternary ammonium salt, dual-benzene triadimenol, dibenzoyl peroxide and a-bromo-allyl acrolein; the anti-oxidant is at least oneof 4,4'-sulfo-dual(6-tertiary butyl-3-methylphenol), Beta-(3,5-tributyl-4-hydroxy phenyl)pseudacetic acid octadecanol ester, phosphorous acid trimester(2,4-dual tertiary butyl phenyl), dua l(2,4- dual tertiary butyl phenyl) pentaerythritol dual phosphite ester, and quadr-(Beta-(3,5 dual tertiary butyl-4-hydroxy phenyl)propionic acid)pentaerythritol ester. Comparing with the prior art, durability and mildewproof and antibacterial performance of the resinous polymer are improved.

Description

technical field [0001] The invention relates to a glass fiber-reinforced anti-mildew and anti-bacterial polycarbonate resin polymer for outdoor use, belonging to the field of polymer composite materials. Background technique [0002] Polycarbonate (referred to as PC) is a high molecular polymer containing carbonate groups in the molecular chain. It is a linear carbonate polyester. The carbonic acid groups in the molecule are arranged alternately with other groups. Polycarbonate is almost colorless Glassy amorphous polymer with good optical properties. Polycarbonate has high toughness and high heat distortion temperature, but its fluidity is poor, it is difficult to form, it is prone to stress cracking, and it is not resistant to solvents. In order to make polycarbonate materials suitable for industrial applications, in the prior art, it is mostly reinforced by blending or copolymerizing tougheners and flame retardants with polycarbonate materials, especially when polycarbon...

AI Technical Summary

Problems solved by technology

Polycarbonate has high toughness and high heat distortion temperature, but its fluidity is poor, molding is difficult, it is prone to stress cracking, and it is not resistant to solvents

In order to make polycarbonate materials suitable for industrial applications, in the prior art, it is mostly reinforced by blending or copolymerizing tougheners and flame retardants with polycarbonate materials, especially when polycarbonate resin polymers are used as static In the case of structural materials, it is also very common in the prior art to further add glass fiber materials to enhance the flexural strength and flexural modulus of polycarbonate resin polymers, but the inventors have found that the existing glass fibers reinforced by blending or copolymerization After the reinforced polycarbonate composition has been used for a period of time, the originally enhanced flexural strength and flexural modulus index dropped sharply, and even became brittle. After analysis, the main reason is that the glass fiber reinforced polycarbonate composition formed mildew in a large area. Mildew is often accompanied by pulverization. On the one hand, it makes the appearance worse. The more serious problem is that the glass fiber in the material loses its package due to mildew and pulverization, so that the bending strength and flexural modulus of the material are greatly reduced. The final As a result, the structural strength of the material is greatly reduced, and the possibility of continuing to be used as a static structural material is lost.

In order to solve this problem, many manufacturers have added anti-mildew and anti-bacterial agents to the blended materials to prevent the occurrence of mildew. The mildew of polycarbonate blends or copolymer materials is still relatively serious. In order to solve this further problem, some inventors have proposed adding anti-aging agents to polycarbonate blends or copolymer materials to solve the problem of weather resistance. , but further tests found that the mildew of glass fiber reinforced polycarbonate blends or copolymers added with anti-aging agents was irregular when used outdoors. The combination of anti-aging agent and the anti-mold and anti-bacterial agent can improve or significantly improve the anti-mold and anti-bacterial performance of the material, and there are significant differences in the difference. There is no better solution to the aforementioned problems so far. In summary As mentioned, it is obvious that there is a need for further improvement in the prior art

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