Polyamide material with functions of antibiosis and aging resistance and preparation method thereof

Abstract

The invention provides a polyamide material with functions of antibiosis and aging resistance, which comprises the following raw materials in percent by weight: 70 percent to 90 percent of polyamide, 3 percent to 5.5 percent of plant source extract, 5 percent to 18 percent of nano loess, 1.2 percent to 3 percent of herpetospermum caudigerum wall seed oil, 0.3 percent to 1.5 percent of myristyl hydroxyethyl amino oxide, and 0.5 percent to 2 percent of coupling agent. Thereby, the polyamide material has multiple functions of natural antibiosis, mould proof, oxidation resistance, ultraviolet protection, and far infrared health care through various processing means, reasonable complex formulation, and synergistic interaction. The polyamide material is used for making a polyamide product, wide in antibacterial spectrum, high in bacteriostatic ability and durable in antibacterial effect. Additionally, the aging resistance and mechanical performance properties are better, and the polyamide material is not discolored, not deformed, embrittled under sun exposure for a long term, so the service life is long. Meanwhile, a far infrared effect also has the functions of self cleaning, purifying ambient air, and eliminating peculiar smell, is beneficial to human health and environmental friendly, and the application range of the polyamide material is greatly expanded.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an antibacterial and aging-resistant polyamide material and a preparation method thereof. Background technique [0002] Polyamide (referred to as PA) is a general term for polymers containing amide groups in the chain links of macromolecular structures. It is mainly obtained by polycondensation or self-polymerization of dibasic acids and diamines or amino acid lactams. It is usually called nylon. A general-purpose engineering plastic with the largest output and the most varieties. It has excellent characteristics such as wear resistance, oil resistance, impact resistance, corrosion resistance, excellent self-lubrication performance, small friction coefficient, and easy processing. It is widely used in automobiles, electronic communications, household appliances, building materials, office supplies, packaging, construction, Textile, medical equipment, mechanical equipme...

AI Technical Summary

Problems solved by technology

However, natural antibacterial agents are usually extracted from a plant, animal or organism, with a single antibacterial component and a narrow antibacterial spectrum. They have poor compatibility with polyethylene, and are prone to problems such as agglomeration and uneven dispersion. Antibacterial ingredients are easy to precipitate during use, and the antibacterial effect cannot last

In addition, the existing antibacterial agents cannot have both antibacterial and aging resistance and health care functions at the same time. In order to achieve the aging resistance index required by polyamide products, antioxidants are usually added to polyamides by blending modification to improve their aging resistance. performance

However, most of the known antioxidants are small molecular compounds with certain toxicity, which tend to precipitate on the surface of polyamide products under the action of sunlight, oxygen and heat, which will not only lose the aging resistance, but also pollute the environment and harm the environment. human health