Antibacterial plastic for household electrical appliances and preparation method of antibacterial plastic

Abstract

The invention discloses an antibacterial plastic for household electrical appliances and a preparation method of the antibacterial plastic. The antibacterial plastic is prepared from the following raw materials by weight: 30 to 45 parts of polyvinyl chloride resin, 35 to 45 parts of PC resin, 5 to 10 parts of polyaniline, 5 to 10 parts of dipentaerythritol, 2 to 5 parts of a compatilizer and 0.8 to 2 parts of ketene dimmer. The antibacterial plastic for the household electrical appliances has a good antibacterial effect, and plays a role in inhibiting or killing bacteria, mold, yeast bacteria, algae and even viruses contaminated on the plastic, so that self-cleaning of the plastic is maintained by inhibiting microbial propagation; moreover, the antibacterial plastic has the advantages of high moldability, high mechanical capacity and high impact strength, and can be widely used for manufacturing the household electrical appliances; and the antibacterial plastic is simple in preparation technology, low in production cost and wide in application range.

Description

technical field [0001] The invention relates to a plastic, in particular to an antibacterial plastic for household appliances and a preparation method thereof. Background technique [0002] Home appliances are essential tools for every family. Most of the plastics used in home appliances are thermoplastics, accounting for about 90%, most of which are general-purpose plastics, mainly in the following categories. 1. General plastics: polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), etc. 2. Engineering plastics: acrylonitrile / butadiene / styrene terpolymer (ABS), polyamide (PA), polycarbonate (PC), polyoxymethylene (POM), polyphenylene ether (PPO), polyparaffin Polyethylene phthalate (PET), polybutylene terephthalate (PBT), polyurethane (PUR), etc. 3. Thermosetting plastics: phenolic resin, amino resin, epoxy resin, etc. Because of its light weight, high strength, excellent electrical insulation performance, excellent chemical stability, good light transmission ...

AI Technical Summary

Problems solved by technology

Silver ions have the strongest antibacterial properties, but their chemical properties are active, and they are easily converted into brown silver oxide or black elemental silver, so they should not be used in large quantities in white household appliances.

The antibacterial strength of zinc is only 1 / 1000 of that of silver; copper ions are colored, and a large amount of use will affect the appearance of the product

Although metal ions are quick to kill bacteria, the cost of using a large amount is high, and the release of heavy metal ions will have adverse effects on the environment and human health

The latter has high photocatalytic activity, strong antibacterial persistence, low price and non-toxicity, and strong self-cleaning function. Light exposure applications are limited

A variety of compound antibacterial agents have appeared on the market, but the antibacterial effect is still not good enough; and the preparation methods of existing household plastics are complicated, which increases the production cost