What are the new packaging materials?

Wood flour plastic, corn plastic, rape plastic, wheat plastic, soybean plastic, chlorophyll plastic, bacterial plastic, bacterial film, etc.

1. Wood powder plastic: Polyol is produced from wood powder and then reacted with isocyanate to generate polyurethane. This kind of wood powder plastic has strong heat resistance, and can be biologically decomposed, and can be used to make temperature-resistant packaging bags.

Corn plastic: American researchers have developed an easy-to-decompose corn plastic packaging material. It is made of corn starch mixed with polyethylene, the plastic is suitable for the production of food packaging integrated packaging bags. The packaging can be quickly dissolved in water, can avoid the contact of pollution source and bacteria.

3, rape plastic: a rape plastic packaging material developed by the United Kingdom. It is from the production of biopolymer bacteria extracted three kinds of plastic genes, transferred to the rape plant, after a period of time to produce a plastic polymer liquid, after refining and processing can get a rape plastic. This plastic processing made of packaging materials or food fast food packaging materials, abandoned can be self-decomposition, no pollution residue.

4. Wheat plastic: This is to mix and dry wheat flour with glycerin, ethylene glycol, silicone oil, etc., and then add 150kz/Id pressure and hot press to form a translucent plastic film. The advantage of packaging food with wheat plastic is that it can be decomposed by microorganisms.

5, soybean plastic: the United States with soybean extracted protein to produce similar plastic food packaging materials, can replace the synthetic plastic with petroleum as raw material. This production technology is to soak and grind the soybean to separate the protein, then dry the protein solution to remove the water, and then mix the protein powder with other ingredients and additives to make an edible film or coating for food packaging. They have good strength, elasticity and moisture resistance.

6, chlorophyll plastic: German scientists invented a chlorophyll "dyed" plastic film. Green fruit and vegetable food, mostly contains a large amount of chlorophyll, and this pigment will undergo photosensitive oxidation reaction under light irradiation, decomposition of energy in food, resulting in food decay. The plastic film is "dyed" with chlorophyll in a special way. After this treatment, the film can be used to package food effectively, "intercepting" the light that causes food to rot, thus greatly prolonging the food preservation period.

7, bacterial plastic: British researchers developed a PHB bacterial plastic. It first uses sugar to cultivate a kind of bacteria, which is processed to make a material similar to polypropylene. The material is non-toxic, and easy to biological decomposition, is the ideal material for processing food packaging bags, no pollution to the environment after abandonment.

8. Bacteria detection film: This is a special film that can detect bacteria, that is, a special coating is coated on the surface of ordinary food packaging film to make it have the special function of detecting bacteria, such as the detection film for raw and cooked meat packaging. If the packaged meat food is not fresh, the content of harmful bacteria exceeds the food hygiene standard, with this film packaging will make the original transparent colorless packaging film into a warning color, so that consumers know that meat food can not be eaten.