阅读说明：本技术 一种降解塑料牛奶瓶生产工艺 (Production process of degradable plastic milk bottle ) 是由 全威 盛智 于 2020-05-30 设计创作，主要内容包括：本发明提供一种降解塑料牛奶瓶生产工艺,其特征在于,按重量由下述组分组成：食品级可降解塑料粒子25-45份；高抗冲共聚聚丙烯6-15份；耐高温高强型玻璃纤维1-5份；纯铝箔1-5份；碳化铅1-5份；碳化硼1-5份；二氨基二苯基砜1-5份；阳离子玉米淀粉20-30份；醋酸乙烯及氯乙烯的共聚物20-30份；巴斯夫抗氧剂1-5份；偶联剂1-3份；填充母料5-12份；抗菌剂2-8份。(The invention provides a production process of a degradable plastic milk bottle, which is characterized by comprising the following components in parts by weight: 25-45 parts of food-grade degradable plastic particles; 6-15 parts of high impact co-polypropylene; 1-5 parts of high-temperature-resistant high-strength glass fiber; 1-5 parts of pure aluminum foil; 1-5 parts of lead carbide; 1-5 parts of boron carbide; 1-5 parts of diamino diphenyl sulfone; 20-30 parts of cationic corn starch; 20-30 parts of a copolymer of vinyl acetate and vinyl chloride; 1-5 parts of a BASF antioxidant; 1-3 parts of a coupling agent; 5-12 parts of filling master batch; 2-8 parts of an antibacterial agent.)

1. A production process of a degradable plastic milk bottle is characterized by comprising the following components by weight:

25-45 parts of food-grade degradable plastic particles; 6-15 parts of high impact co-polypropylene; 1-5 parts of high-temperature-resistant high-strength glass fiber; 1-5 parts of pure aluminum foil; 1-5 parts of lead carbide; 1-5 parts of boron carbide; 1-5 parts of diamino diphenyl sulfone; 20-30 parts of cationic corn starch; 20-30 parts of a copolymer of vinyl acetate and vinyl chloride; 1-5 parts of a BASF antioxidant; 1-3 parts of a coupling agent; 5-12 parts of filling master batch; 2-8 parts of an antibacterial agent.

2. The manufacturing process of a degradable plastic milk bottle as claimed in claim 1, wherein the food grade degradable plastic particles are one or more of starch derivatives, proteins, cellulose, chitin and chitosan.

3. The production process of the degradable plastic milk bottle according to claim 1, wherein the preparation method of the cationic corn starch comprises the following steps: firstly, mixing starch with water to prepare starch paste; and adding an acid aqueous solution into the starch paste, mixing, adding alkali to the pH value of 5-8 to prepare a mixed solution, and filtering and drying the mixed solution to obtain the cationic corn starch.

4. A process as claimed in claim 3, wherein the acid is selected from hydrochloric acid or sulphuric acid, and the acid content of the aqueous acid solution is 10-30 wt%; the alkali is selected from sodium hydroxide or potassium hydroxide.

5. The production process of a degradable plastic milk bottle as claimed in claim 1, wherein the copolymer of vinyl acetate and vinyl chloride is prepared by adding 20-40 parts by weight of polypropylene, 40-60 parts by weight of starch, 1-10 parts by weight of vegetable protein powder, 10-20 parts by weight of ethylene/vinyl acetate copolymer and 5-10 parts by weight of soybean oil into a high-speed mixer for dispersion, and then melt blending, extruding and granulating at 160-180 ℃ through a twin-screw extruder to obtain the polypropylene/starch/vegetable protein powder blend.

6. The process of claim 1, wherein the filling masterbatch comprises the following components by weight: 25-45 parts of a filling master batch carrier; 10-20 parts of a filler; 0.5-1 part of a dispersant; 1.5-2 parts of a surface treating agent.

7. The process of claim 1, wherein the antimicrobial agent comprises the following components by weight: 10-15 parts of nano titanium dioxide; 4-8 parts of nano silver particles; 1-2 parts of nano zinc particles; 9-18 parts of a diluent.

Technical Field

The invention relates to the technical field of plastic milk bottle preparation, in particular to a production process of a degradable plastic milk bottle.

Background

Milk is one of the oldest natural beverages, is known as 'white blood', and contains abundant mineral substances, calcium, phosphorus, iron, zinc, copper, manganese and molybdenum; most rarely, the milk is the best source of calcium for human bodies, and the proportion of calcium and phosphorus is very proper, so that the milk is beneficial to the absorption of calcium; the milk is complex in type, and the main components comprise water, fat, phospholipid, protein, lactose, inorganic salt and the like, and the components are all necessary for human every day; therefore, the external packaging of milk is also important; the existing plastic milk bottle is difficult to treat after use, difficult to degrade and bring great burden to the environment.

Disclosure of Invention

Aiming at the technical problems, the invention provides a production process of a degradable plastic milk bottle.

In order to achieve the purpose, the invention adopts the following technical scheme: a production process of a degradable plastic milk bottle is characterized by comprising the following components by weight:

25-45 parts of food-grade degradable plastic particles; 6-15 parts of high impact co-polypropylene; 1-5 parts of high-temperature-resistant high-strength glass fiber; 1-5 parts of pure aluminum foil; 1-5 parts of lead carbide; 1-5 parts of boron carbide; 1-5 parts of diamino diphenyl sulfone; 20-30 parts of cationic corn starch; 20-30 parts of a copolymer of vinyl acetate and vinyl chloride; 1-5 parts of a BASF antioxidant; 1-3 parts of a coupling agent; 5-12 parts of filling master batch; 2-8 parts of an antibacterial agent.

The food-grade degradable plastic particles are one or a mixture of starch derivatives, protein, cellulose, chitin and chitosan.

The preparation method of the cationic corn starch comprises the following steps: firstly, mixing starch with water to prepare starch paste; and adding an acid aqueous solution into the starch paste, mixing, adding alkali to the pH value of 5-8 to prepare a mixed solution, and filtering and drying the mixed solution to obtain the cationic corn starch.

The acid is selected from hydrochloric acid or sulfuric acid, and the acid content in the acid aqueous solution is 10-30 wt%; the alkali is selected from sodium hydroxide or potassium hydroxide.

The copolymer of vinyl acetate and chloroethylene is prepared by adding 20-40 parts by weight of polypropylene, 40-60 parts by weight of starch, 1-10 parts by weight of plant protein powder, 10-20 parts by weight of ethylene/vinyl acetate copolymer and 5-10 parts by weight of soybean oil into a high-speed mixer for dispersion, and then carrying out melt blending, extrusion and granulation at 160-180 ℃ through a double-screw extruder to obtain the polypropylene/starch/plant protein powder blend.

The filling master batch comprises the following components in parts by weight: 25-45 parts of a filling master batch carrier; 10-20 parts of a filler; 0.5-1 part of a dispersant; 1.5-2 parts of a surface treating agent.

The antibacterial agent comprises the following components in parts by weight: 10-15 parts of nano titanium dioxide; 4-8 parts of nano silver particles; 1-2 parts of nano zinc particles; 9-18 parts of a diluent.

The invention has the beneficial effects that: the plastic milk bottle prepared by adopting the food-grade degradable plastic particles as the raw materials has good degradability; the cheap starch, the plant protein powder and the polylactic acid are blended, so that the production cost can be effectively reduced; the radiation-proof performance of the plastic milk bottle can be effectively improved by adding pure aluminum foil, lead carbide, boron carbide and diaminodiphenyl sulfone in the formula; the added filling master batch can effectively improve the strength and the heat resistance of the plastic milk bottle; the added antibacterial agent can effectively improve the antibacterial performance of the plastic milk bottle, and the using effect is good.

Detailed Description

The invention is further illustrated by the following examples:

a production process of a degradable plastic milk bottle is characterized by comprising the following components by weight:

the food-grade degradable plastic particles are one or a mixture of starch derivatives, protein, cellulose, chitin and chitosan.

The preparation method of the cationic corn starch comprises the following steps: firstly, mixing starch with water to prepare starch paste; and adding an acid aqueous solution into the starch paste, mixing, adding alkali to the pH value of 5-8 to prepare a mixed solution, and filtering and drying the mixed solution to obtain the cationic corn starch.

The acid is selected from hydrochloric acid or sulfuric acid, and the acid content in the acid aqueous solution is 10-30 wt%; the alkali is selected from sodium hydroxide or potassium hydroxide.

The copolymer of vinyl acetate and chloroethylene is prepared by adding 20-40 parts by weight of polypropylene, 40-60 parts by weight of starch, 1-10 parts by weight of plant protein powder, 10-20 parts by weight of ethylene/vinyl acetate copolymer and 5-10 parts by weight of soybean oil into a high-speed mixer for dispersion, and then carrying out melt blending, extrusion and granulation at 160-180 ℃ through a double-screw extruder to obtain the polypropylene/starch/plant protein powder blend.

The filling master batch comprises the following components in parts by weight: 25-45 parts of a filling master batch carrier; 10-20 parts of a filler; 0.5-1 part of a dispersant; 1.5-2 parts of a surface treating agent.

The antibacterial agent comprises the following components in parts by weight: 10-15 parts of nano titanium dioxide; 4-8 parts of nano silver particles; 1-2 parts of nano zinc particles; 9-18 parts of a diluent.

Example 1 a production process of a degradable plastic milk bottle, which consists of the following components in parts by weight:

25-45 parts of food-grade degradable plastic particles; 6-15 parts of high impact co-polypropylene; 1-5 parts of high-temperature-resistant high-strength glass fiber; 1-5 parts of pure aluminum foil; 1-5 parts of lead carbide; 1-5 parts of boron carbide; 1-5 parts of diamino diphenyl sulfone; 20-30 parts of cationic corn starch; 20-30 parts of a copolymer of vinyl acetate and vinyl chloride; 1-5 parts of a BASF antioxidant; 1-3 parts of a coupling agent; 5-12 parts of filling master batch; 2-8 parts of antibacterial agent

The food-grade degradable plastic particles are one or a mixture of starch derivatives, protein, cellulose, chitin and chitosan.

The preparation method of the cationic corn starch comprises the following steps: firstly, mixing starch with water to prepare starch paste; and adding an acid aqueous solution into the starch paste, mixing, adding alkali to the pH value of 5-8 to prepare a mixed solution, and filtering and drying the mixed solution to obtain the cationic corn starch.

The acid is selected from hydrochloric acid or sulfuric acid, and the acid content in the acid aqueous solution is 10 wt%; the alkali is selected from sodium hydroxide or potassium hydroxide.

The copolymer of vinyl acetate and vinyl chloride is prepared by adding 20kg of polypropylene, 40kg of starch, 1kg of vegetable protein powder, 10kg of ethylene/vinyl acetate copolymer and 5kg of soybean oil into a high-speed mixer for dispersion, and then performing melt blending, extrusion and granulation at 160 ℃ through a double-screw extruder to obtain the polypropylene/starch/vegetable protein powder blend.

The filling master batch comprises the following components in parts by weight: 30 parts of a filling master batch carrier; 10 parts of a filler; 0.5 part of a dispersant; 1.5 parts of a surface treating agent.

The antibacterial agent comprises the following components in parts by weight: 10 parts of nano titanium dioxide; 4 parts of nano silver particles; 1 part of nano zinc particles; and 9 parts of a diluent.

Embodiment 2 a production process of a degradable plastic milk bottle, which comprises the following components by weight:

25-45 parts of food-grade degradable plastic particles; 6-15 parts of high impact co-polypropylene; 1-5 parts of high-temperature-resistant high-strength glass fiber; 1-5 parts of pure aluminum foil; 1-5 parts of lead carbide; 1-5 parts of boron carbide; 1-5 parts of diamino diphenyl sulfone; 20-30 parts of cationic corn starch; 20-30 parts of a copolymer of vinyl acetate and vinyl chloride; 1-5 parts of a BASF antioxidant; 1-3 parts of a coupling agent; 5-12 parts of filling master batch; 2-8 parts of an antibacterial agent.

The food-grade degradable plastic particles are one or a mixture of starch derivatives, protein, cellulose, chitin and chitosan.

The preparation method of the cationic corn starch comprises the following steps: firstly, mixing starch with water to prepare starch paste; and adding an acid aqueous solution into the starch paste, mixing, adding alkali to the pH value of 5-8 to prepare a mixed solution, and filtering and drying the mixed solution to obtain the cationic corn starch.

The acid is selected from hydrochloric acid or sulfuric acid, and the acid content in the acid water solution is 30 wt%; the alkali is selected from sodium hydroxide or potassium hydroxide.

The copolymer of vinyl acetate and vinyl chloride is prepared by adding 40kg of polypropylene, 60kg of starch, 10kg of vegetable protein powder, 20kg of ethylene/vinyl acetate copolymer and 10kg of soybean oil into a high-speed mixer for dispersion, and then performing melt blending, extrusion and granulation at 180 ℃ through a double-screw extruder to obtain the polypropylene/starch/vegetable protein powder blend.

The filling master batch comprises the following components in parts by weight: 40 parts of a filling master batch carrier; 20 parts of a filler; 1 part of a dispersant; and 2 parts of a surface treatment agent.

The antibacterial agent comprises the following components in parts by weight: 15 parts of nano titanium dioxide; 8 parts of nano silver particles; 2 parts of nano zinc particles; and 18 parts of a diluent.

The invention has been described in an illustrative manner, and it is to be understood that the invention is not limited to the specific embodiments described above, but is intended to cover various modifications, which may be made by the methods and technical solutions of the invention, or may be applied to other applications without modification.