Degradable semitransparent packaging bottle and machining process thereof

Abstract

The invention relates to a degradable semitransparent packaging bottle and a machining process thereof. The degradable semitransparent packaging bottle is obtained by mixing, granulating, fusing and molding a basic material and a filling according to a mass ratio of (8-9):(1-2) and blowing an molded product into a bottle; the basic material is prepared from the following raw materials in parts byweight: 100-140 parts of modified corn starch, 20-30 parts of polyvinyl alcohol, 10-20 parts of polylactic acid, 5-10 parts of chitosan, 2-5 parts of a compound cross linker, 0.5-1.0 parts of a defoaming agent, 2-3 parts of an emulsifying agent, 1-2 parts of a mold release agent and 2-3 parts of an adhesive; and the compound cross linker is a mixture of pectin and nanometer organobentonite; and the filling is mud flat sludge rich in organic matters. The degradable semitransparent packaging bottle provided by the invention has the advantages that the excellent mechanical performance, barrier property and degradable property of the packaging bottle are realized by using four high polymers of the modified corn starch, the polyvinyl alcohol, the polylactic acid and the chitosan as main raw materials and using the pectin and the nanometer organobentonite as the compound cross linker; and the quality of the novel packaging bottle is high.

Description

technical field [0001] The invention relates to a degradable translucent packaging bottle and a processing technology thereof, belonging to the technical field of degradable translucent packaging bottle processing. Background technique [0002] At present, the main packaging methods of beverage packaging are glass bottles, metal cans (tinplate cans, pop cans), plastic bottles, paper-plastic-aluminum composite packaging materials, etc. Glass bottles are fragile, poor in secondary processing performance, and overweight, which brings a lot of inconvenience during transportation, and the transportation cost is high, so it is often not accepted by people. The filling of tinplate cans has strict requirements on the inner coating film, which makes the packaging cost higher. In addition, it is difficult to deal with environmental protection, and its development prospects are affected to a certain extent. Poor chemical stability of cans, poor alkali resistance, poor quality of inner...

AI Technical Summary

Problems solved by technology

However, there are disadvantages such as complex process, high cost, and low output, and it is difficult to prepare products with thick walls and complex shapes.

[0006] All in all, in the prior art, the mechanical properties, barrier properties and degradable properties of the packaging bottle cannot be achieved by using a single polymer. The present invention aims to solve this technical problem and provide a polylactic acid-starch-PVA composite Degradable translucent packaging bottle and its processing technology