Degradable perlite tableware and preparation method thereof

Abstract

The invention relates to degradable perlite tableware and a preparation method thereof, solving the problems that the existing degradable tableware is more likely to absorb moisture, poor in toughness, light in mass, complicated in process and high in production cost and transportation cost. According to the technical scheme, the degradable perlite tableware is prepared from the following raw materials in percentage by weight through steps of mixing and hot press molding: 30-35% of hydrophobic expanded perlite powder, 20-25% of rice hull powder, 15-20% of an adhesive, 6-10% of a water-proof agent, 6-10% of an oil-proof agent, 0.5-1% of a defoamer, 4-10% of a plasticizer and 1-2% of other aids, 100% in total. The degradable perlite tableware has the advantages of water resistance, oil resistance, good apparent mass, light weight, high strength, good toughness and simple production process.

Description

technical field [0001] The invention relates to a tableware and a preparation method thereof, in particular to a perlite degradable tableware and a preparation method thereof. Background technique [0002] Tableware is an indispensable daily necessities for people. Traditional fast food utensils are made of organic plastic materials, which are not easy to degrade after use, and burning will pollute the environment and be harmful to human health. [0003] At present, many new materials that can be used to replace plastic foam tableware have appeared in our country. In terms of manufacturing principles, these new disposable tableware can be divided into the following five categories: 1. Photo-biodegradable polypropylene tableware; 2. Starch products; Shell) products; 5. Pulp molded products. [0004] From the cost point of view, plant fiber (rice and wheat husk) products are more dominant in all current alternatives to expanded polystyrene. But there are also some problems...

AI Technical Summary

Problems solved by technology

But there are also some problems that need to be solved carefully; (1) it is easy to absorb moisture, and it may become moldy in a humid environment; (2) it has poor toughness and poor drop strength. Poor strength, high brittleness, and the product is easily broken when a little force is held by the hand; (3) the appearance is rough, with many bubbling pores, and the color is yellowish; (4) due to the poor toughness and high brittleness of the raw material, it is made into tableware The wall of the product is thicker, the unit weight is larger, and the transportation cost is high

(5) The preparation method is complicated. After the raw materials are mixed, multiple steps such as adding water to make pulp, hot pressing and drying are required. Void, affecting product quality

(6) And in order to improve the appearance quality and waterproof and oil-proof effect of the finished product, it is often necessary to coat a layer of polyethylene film on the outer surface of the prepared tableware, which further increases the manufacturing difficulty and production cycle

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