Plastic box and preparation method thereof

Abstract

The invention discloses a plastic box and a preparation method thereof. The plastic box is prepared from the following raw materials in parts by weight: 10 to 30 parts of polyethylene, 5 to 15 parts of polycaprolactone, 15 to 25 parts of cellulose, 5 to 10 parts of a photosensitizer, 7 to 15 parts of barium sulfate, 0.1 to 0.3 part of an antioxidant, 0.2 to 0.6 part of a dispersing agent, 0.2 to 0.6 part of a lubricating agent and 4 to 10 parts of an elastomer. The formula components are reasonable, the preparation method is simple, the added cellulose is easy to degrade, and the photosensitizer can absorb sunlight to accelerate degradation of a plastic packaging bag, so that the plastic box produced according to the method is easy to degrade, to reduce environmental pollution.

Description

technical field

[0001] The invention relates to the field of plastics, in particular to a plastic box and a preparation method thereof. Background technique

[0002] Plastic is a high molecular compound polymerized by addition polymerization or polycondensation reaction with monomer as raw material. It is commonly known as plastic or resin. It can freely change its composition and shape. , Colorants and other additives.

[0003] The main component of plastic is resin. The term resin was originally named after the lipids secreted by animals and plants, such as rosin, shellac, etc. Resin refers to a polymer compound that has not been mixed with various additives. Resin accounts for about 40% to 100% of the total weight of the plastic. The basic properties of plastics are mainly determined by the nature of the resin, but additives also play an important role. Some plastics are basically composed of synthetic resins, with no or few additives, such as plexiglass, polystyrene,...

Examples

Embodiment 1

[0013] A plastic box, comprising the following raw materials by weight: 10 parts of polyethylene, 5 parts of polycaprolactone, 15 parts of cellulose, 5 parts of photosensitizer, 7 parts of barium sulfate, 0.1 part of antioxidant, 0.2 parts of dispersant parts, 0.2 parts of lubricant, 4 parts of elastomer.

[0014] Its preparation method comprises the following steps:

[0015] (1) Put polyethylene, polycaprolactone, cellulose, photosensitizer, barium sulfate, antioxidant, dispersant, lubricant, and elastomer into the heating furnace, and heat it to 200°C-350°C. The raw materials are melted, and the mold is heated to a surface temperature between 200°C and 300°C at the same time.

[0016] (2) Put the heated raw material into the heated mould, mold it by closing the mold, and then fully cool it.

[0017] (3) Open the mold and pick up the parts.

Embodiment 2

[0019] A plastic box, comprising the following raw materials by weight: 30 parts of polyethylene, 15 parts of polycaprolactone, 25 parts of cellulose, 5 parts of photosensitizer, 15 parts of barium sulfate, 0.3 parts of antioxidant, 0.6 parts of dispersant parts, 0.2 parts of lubricant, and 10 parts of elastomer.

[0020] Its preparation method comprises the following steps:

[0021] (1) Put polyethylene, polycaprolactone, cellulose, photosensitizer, barium sulfate, antioxidant, dispersant, lubricant, and elastomer into the heating furnace, and heat it to 200°C-350°C. The raw materials are melted, and the mold is heated to a surface temperature between 200°C and 300°C at the same time.

[0022] (2) Put the heated raw material into the heated mould, mold it by closing the mold, and then fully cool it.

[0023] (3) Open the mold and pick up the parts.

Embodiment 3

[0025] A plastic box, comprising the following raw materials by weight: 210 parts of polyethylene, 10 parts of polycaprolactone, 18 parts of cellulose, 10 parts of photosensitizer, 10 parts of barium sulfate, 0.2 parts of antioxidant, 0.4 parts of dispersant parts, 0.6 parts of lubricant, and 6 parts of elastomer.

[0026] Its preparation method comprises the following steps:

[0027] (1) Put polyethylene, polycaprolactone, cellulose, photosensitizer, barium sulfate, antioxidant, dispersant, lubricant, and elastomer into the heating furnace, and heat it to 200°C-350°C. The raw materials are melted, and the mold is heated to a surface temperature between 200°C and 300°C at the same time.

[0028] (2) Put the heated raw material into the heated mould, mold it by closing the mold, and then fully cool it.

[0029] (3) Open the mold and pick up the parts.

technical field

[0001] The invention relates to the field of plastics, in particular to a plastic box and a preparation method thereof. Background technique

[0002] Plastic is a high molecular compound polymerized by addition polymerization or polycondensation reaction with monomer as raw material. It is commonly known as plastic or resin. It can freely change its composition and shape. , Colorants and other additives.

[0003] The main component of plastic is resin. The term resin was originally named after the lipids secreted by animals and plants, such as rosin, shellac, etc. Resin refers to a polymer compound that has not been mixed with various additives. Resin accounts for about 40% to 100% of the total weight of the plastic. The basic properties of plastics are mainly determined by the nature of the resin, but additives also play an important role. Some plastics are basically composed of synthetic resins, with no or few additives, such as plexiglass, polystyrene,...

Examples

Embodiment 1

[0013] A plastic box, comprising the following raw materials by weight: 10 parts of polyethylene, 5 parts of polycaprolactone, 15 parts of cellulose, 5 parts of photosensitizer, 7 parts of barium sulfate, 0.1 part of antioxidant, 0.2 parts of dispersant parts, 0.2 parts of lubricant, 4 parts of elastomer.

[0014] Its preparation method comprises the following steps:

[0015] (1) Put polyethylene, polycaprolactone, cellulose, photosensitizer, barium sulfate, antioxidant, dispersant, lubricant, and elastomer into the heating furnace, and heat it to 200°C-350°C. The raw materials are melted, and the mold is heated to a surface temperature between 200°C and 300°C at the same time.

[0016] (2) Put the heated raw material into the heated mould, mold it by closing the mold, and then fully cool it.

[0017] (3) Open the mold and pick up the parts.

Embodiment 2

[0019] A plastic box, comprising the following raw materials by weight: 30 parts of polyethylene, 15 parts of polycaprolactone, 25 parts of cellulose, 5 parts of photosensitizer, 15 parts of barium sulfate, 0.3 parts of antioxidant, 0.6 parts of dispersant parts, 0.2 parts of lubricant, and 10 parts of elastomer.

[0020] Its preparation method comprises the following steps:

[0021] (1) Put polyethylene, polycaprolactone, cellulose, photosensitizer, barium sulfate, antioxidant, dispersant, lubricant, and elastomer into the heating furnace, and heat it to 200°C-350°C. The raw materials are melted, and the mold is heated to a surface temperature between 200°C and 300°C at the same time.

[0022] (2) Put the heated raw material into the heated mould, mold it by closing the mold, and then fully cool it.

[0023] (3) Open the mold and pick up the parts.

Embodiment 3

[0025] A plastic box, comprising the following raw materials by weight: 210 parts of polyethylene, 10 parts of polycaprolactone, 18 parts of cellulose, 10 parts of photosensitizer, 10 parts of barium sulfate, 0.2 parts of antioxidant, 0.4 parts of dispersant parts, 0.6 parts of lubricant, and 6 parts of elastomer.

[0026] Its preparation method comprises the following steps:

[0027] (1) Put polyethylene, polycaprolactone, cellulose, photosensitizer, barium sulfate, antioxidant, dispersant, lubricant, and elastomer into the heating furnace, and heat it to 200°C-350°C. The raw materials are melted, and the mold is heated to a surface temperature between 200°C and 300°C at the same time.

[0028] (2) Put the heated raw material into the heated mould, mold it by closing the mold, and then fully cool it.

[0029] (3) Open the mold and pick up the parts.