Degradable cushioning packaging material and preparation method thereof

Abstract

The invention relates to a degradable cushioning packaging material and a preparation method thereof. The preparation method comprises the steps of acquiring the materials, including, by weight, 65-85% of hardwood sawdust, 13-33% of bran , 1% of corn flour, 0.5% of soybean flour and 0.5% of calcium carbonate powder, adding the materials into a container, adding water, and stirring to obtain a matrix; loading the matrix into a mold, punching holes in the matrix paved in the mold at intervals by using a conical rod, and sealing an opening of the mold by using a sealing device with air holes to obtain the matrix to be sterilized; sending the matrix to be sterilized to a high-temperature high-pressure sterilization device for high-temperature high-pressure sterilization, and transferring intoan aseptic chamber for cooling after sterilization is finished so as to obtain the matrix to be inoculated; inoculating a shiitake mushroom strain to the holes where an inoculation point is reserved,returning the sealing device with the air holes to the opening of the mold after inoculation is finished, sending the mold to a ventilated clean culture chamber for culture, and drying and removing from the mold after mycelia fully cover the matrix to obtain the finished product. The extreme cushioning performance is embodied; the environment is protected; the steps are simple and short.

Description

technical field [0001] The invention belongs to the technical field of packaging materials and their preparation, and in particular relates to a degradable cushioning packaging material. Background technique [0002] As the industry knows, foam plastics are widely used cushioning packaging materials in modern times, and with the development of the express delivery industry and the rapid increase in the number of express deliveries, the impact of foam plastics on the environment is increasing day by day, for example, they cannot be naturally weathered and incinerated after being discarded Handling produces toxic and hazardous fumes. Although it is said that there are degradable plastics, there is still a big gap with the requirement of 100% degradation and the price is expensive. [0003] Paper cushioning packaging materials are also commonly used as a type of cushioning packaging, but their surfaces are relatively hard and should not be in direct contact with the surface of...

AI Technical Summary

Problems solved by technology

[0005] In the published Chinese patent literature, it can be seen that the technical information on packaging materials that are relatively friendly to the environment and can be naturally degraded and their preparation methods, such as CN107201048A recommends "a kind of plant fiber porous cushioning packaging material and its preparation method", the patent Although it has the technical effect of the 0015th paragraph of the description, it loses the economical and cheap properties because of its many raw materials.

Another example is that CN105623208A provides "a degradable packaging cushioning material", which also has the shortcomings of CN107201048A, and because it needs to use polybutylene succinate (PBS) and azodicarbonamide, etc., from The allocation of raw materials to the entire preparation process is relatively troublesome