High-performance plant fiber packaging material and preparation method thereof
A plant fiber and packaging material technology, applied in the field of packaging materials, can solve the problems of not being able to protect the packaged well, the cost of plant fiber materials is high, and the mechanical strength is reduced, so as to achieve excellent protection, low production cost, and buffering. good performance
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[0018] figure 1 It is a process step diagram of a method for preparing a high-performance plant fiber packaging material in an embodiment of the present invention; the packaging material is made by mixing composite plant fibers, adhesives, modified foaming agents and auxiliary agents, and the auxiliary agents include borax, Zinc oxide and urea, the preparation method includes the following steps: a) preparing main raw materials, b) preparing mixed glue, c) mixing and molding, and d) post-processing.
[0019] The high-performance plant fiber packaging material mentioned in the present invention uses discarded sunflower straw pith and sugarcane pith as main raw materials, and uses non-toxic adhesives, foaming agents that are non-toxic and harmless to the human body, and various auxiliary agents. Prepared by chemical foaming. Among them, the mass fraction of sunflower straw pith in the composite plant fiber is 40% to 50%, and the mass fraction of sugarcane pith in the composite ...
Embodiment 1
[0021] The specific preparation method is as follows:
[0022] a) Preparation of main raw materials, the specific preparation process is as follows: first, sunflower straw pith and sugarcane pith are dried and sieved, and then the sunflower straw pith and sugarcane pith are respectively crushed by a pulverizer at a speed of 420 r / s. The materials were pulverized to prepare sunflower straw pith powder and sugarcane pith powder; then, according to mass percentage, 40% of sunflower straw pith powder and 60% of sugarcane pith powder were weighed and put into a mixing container for mixing, and then Put the mixed powder into a drying oven and dry until the moisture content is about 3%.
[0023] b) Preparation of mixed glue, the specific treatment process is: first modify the foaming agent azodicarbonamide to reduce its decomposition temperature, the modification treatment is to mix azodicarbonamide, zinc oxide and urea according to the mass ratio 4:1:1 for grinding, after mixing ev...
Embodiment 2
[0027] The specific preparation method is as follows:
[0028] a) Preparation of main raw materials, the specific preparation process is as follows: first, sunflower straw pith and sugarcane pith are dried and sieved, and then the sunflower straw pith and sugarcane pith are respectively crushed by a pulverizer at a speed of 420 r / s. The materials were pulverized to prepare sunflower straw pith powder and sugarcane pith powder; then, according to mass percentage, 50% of sunflower straw pith powder and 50% of sugarcane pith powder were weighed and put into a mixing container for mixing, and then Put the mixed powder into a drying oven and dry until the moisture content is about 3%.
[0029] b) Preparation of mixed glue, the specific treatment process is: first modify the foaming agent azodicarbonamide to reduce its decomposition temperature, the modification treatment is to mix azodicarbonamide, zinc oxide and urea according to the mass ratio 4:1:1 for grinding, after mixing ev...
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