阅读说明：本技术 一种利用回收垃圾膜制备高值化循环再生塑料颗粒的方法 (Method for preparing high-valued recycled plastic particles by utilizing recycled garbage films ) 是由 王花 江凤凤 王智峰 陈丽丽 蔡伟强 沈华强 谢奕斌 郑冬伟 蔡少文 于 2021-07-12 设计创作，主要内容包括：本发明公开了一种利用回收垃圾膜制备高值化循环再生塑料颗粒的方法,所述加工方法是将回收的垃圾膜挑选出PE/PP材料,剔除复合膜/带铝箔的膜；将分拣好的塑料水洗,并添加药剂,去除油渍、污垢；将洗净的塑料进行粉碎,粉碎机内设有搅拌机,在搅拌的同时进行粉碎,使粉碎更加彻底；对粉碎后的塑料进行漂洗；将漂洗后的塑料进行干燥；将干燥后的塑料添加助剂混合后输送到塑料挤出机中成型后,最后进行牵引造粒。本发明对废弃塑料膜的利用提供了一种合适的处理方法,不仅可以使其无害化,而且还可以使其资源化,添加的抗老化剂、抗紫外线剂的利用率高,得到的再生颗粒具有良好的耐老化性。(The invention discloses a method for preparing high-valued recycled plastic particles by utilizing a recycled garbage film, which comprises the steps of selecting a PE/PP material from the recycled garbage film, and removing a composite film/a film with an aluminum foil; washing the sorted plastic with water, adding a medicament, and removing oil stains and dirt; the cleaned plastic is crushed, a stirrer is arranged in the crusher, and the plastic is crushed while being stirred, so that the crushing is more thorough; rinsing the crushed plastic; drying the rinsed plastic; and (3) adding an auxiliary agent into the dried plastic, mixing, conveying the mixture to a plastic extruder for molding, and finally carrying out traction granulation. The invention provides a proper treatment method for the utilization of the waste plastic film, which not only can make the waste plastic film harmless, but also can make the waste plastic film resource, the added anti-aging agent and the ultraviolet resistant agent have high utilization rate, and the obtained regenerated particles have good aging resistance.)

1. A method for preparing high-valued recycled plastic particles by utilizing a recycled garbage film is characterized by comprising the following steps: the method comprises the following steps:

selecting a PE/PP material from the recycled garbage film, and removing a composite film/a film with an aluminum foil;

step two, washing the sorted plastic with water, adding a medicament, and removing oil stains and dirt;

step three, crushing the cleaned plastic, wherein a stirrer is arranged in the crusher, and crushing is carried out while stirring, so that crushing is more thorough;

step four, rinsing the crushed plastic;

step five, drying the rinsed plastic;

and step six, adding an auxiliary agent into the dried plastic, mixing, conveying the mixture to a plastic extruder for molding, and finally carrying out traction granulation.

2. The method for preparing high-valued recycled plastic granules from the recycled garbage film according to claim 1, wherein the method comprises the following steps: the weight ratio of the raw materials of the Chinese medicament in the step two is as follows: 0.2 to 0.4 portion of polyoxyethylene oleate, 13 to 15 portions of ethyl methyl benzene, 0.2 to 0.4 portion of disodium diaminetetraacetate, 13 to 15 portions of diethylbenzylamine, 32 to 35 portions of diethylenetriamine and 24 to 26 portions of ethyl methyl benzene.

3. The method for preparing high-valued recycled plastic granules from the recycled garbage film according to claim 1, wherein the method comprises the following steps: and step four, firstly, washing the roller, and then putting the washed plastic into a water tank for rinsing.

4. The method for preparing high-valued recycled plastic granules from the recycled garbage film according to claim 1, wherein the method comprises the following steps: in the fifth step, the drying temperature is 90-100 ℃, and the drying time is 1.5-3 h.

5. The method for preparing high-valued recycled plastic granules from the recycled garbage film according to claim 1, wherein the method comprises the following steps: and the assistant added in the sixth step comprises an anti-aging agent, an anti-ultraviolet agent and a coupling agent.

Technical Field

The invention relates to the technical field of waste recycling, in particular to a method for preparing high-valued recycled plastic particles by utilizing a recycled garbage film.

Background

Plastic granules, which are made of high pressure Polyethylene (PE), are generally imported from italy, japan, korea, europe, the united states and the like, are manufactured in china, and are widely used in the clothing industry, building materials, agriculture, machinery industry and the like, recycled granules are one kind of plastic granules, can be used for manufacturing various plastic bags, barrels, basins, toys, furniture, stationery and other living appliances and various plastic products, and play an important role in life.

The plastic film is mainly made of high molecular compounds such as polystyrene, polypropylene, polyvinyl chloride and the like, brings convenience to life, and simultaneously brings serious pollution to the living environment due to the characteristic of difficult degradation, causes potential harm to the ecological environment, causes damage to the living environment, is called white pollution in an image, and has to reach the plastic limit order in China.

How to recycle the plastic film to make it harmless and resource, is a technical problem which needs to be solved urgently.

Disclosure of Invention

The invention aims to solve the problems and provide a method for preparing high-value recycled plastic granules by utilizing recycled garbage films.

The invention realizes the purpose through the following technical scheme:

a method for preparing high-valued recycled plastic particles by utilizing a recycled garbage film is carried out according to the following steps:

selecting a PE/PP material from the recycled garbage film, and removing a composite film/a film with an aluminum foil;

step two, washing the sorted plastic with water, adding a medicament, and removing oil stains and dirt;

step three, crushing the cleaned plastic, wherein a stirrer is arranged in the crusher, and crushing is carried out while stirring, so that crushing is more thorough;

step four, rinsing the crushed plastic;

step five, drying the rinsed plastic;

and step six, adding an auxiliary agent into the dried plastic, mixing, conveying the mixture to a plastic extruder for molding, and finally carrying out traction granulation.

Preferably: the weight ratio of the raw materials of the Chinese medicament in the step two is as follows: 0.2 to 0.4 portion of polyoxyethylene oleate, 13 to 15 portions of ethyl methyl benzene, 0.2 to 0.4 portion of disodium diaminetetraacetate, 13 to 15 portions of diethylbenzylamine, 32 to 35 portions of diethylenetriamine and 24 to 26 portions of ethyl methyl benzene.

Preferably: and step four, firstly, washing the roller, and then putting the washed plastic into a water tank for rinsing.

Preferably: in the fifth step, the drying temperature is 90-100 ℃, and the drying time is 1.5-3 h.

Preferably: and the assistant added in the sixth step comprises an anti-aging agent, an anti-ultraviolet agent and a coupling agent.

Compared with the prior art, the invention has the following beneficial effects:

the method provides a proper treatment method for the utilization of the waste plastic film, can not only make the waste plastic film harmless, but also can make the waste plastic film resource, the utilization rate of the added anti-aging agent and the ultraviolet resistant agent is high, and the obtained regenerated particles have good aging resistance.

Detailed Description

The present invention will be described in more detail with reference to examples.

Example 1

A method for preparing high-valued recycled plastic particles by utilizing a recycled garbage film is carried out according to the following steps:

selecting a PE/PP material from the recycled garbage film, and removing a composite film/a film with an aluminum foil;

step two, washing the sorted plastic with water, adding a medicament to remove oil stains and dirt, wherein the medicament comprises the following raw materials in parts by weight: 0.4 part of polyoxyethylene oleate, 15 parts of ethyl methyl benzene, 0.4 part of disodium diaminotetraacetate, 15 parts of diethylbenzylamine, 35 parts of diethylenetriamine and 26 parts of ethyl methyl benzene;

step three, crushing the cleaned plastic, wherein a stirrer is arranged in the crusher, and crushing is carried out while stirring, so that crushing is more thorough;

step four, firstly, washing the crushed plastic by a roller, and then putting the washed plastic into a water tank for rinsing;

step five, drying the rinsed plastic at 100 ℃ for 3 h;

and step six, adding an anti-aging agent, an anti-ultraviolet agent and a coupling agent into the dried plastic, mixing, conveying the mixture into a plastic extruder for molding, and finally carrying out traction granulation.

Example 2

A method for preparing high-valued recycled plastic particles by utilizing a recycled garbage film is carried out according to the following steps:

selecting a PE/PP material from the recycled garbage film, and removing a composite film/a film with an aluminum foil;

step two, washing the sorted plastic with water, adding a medicament to remove oil stains and dirt, wherein the medicament comprises the following raw materials in parts by weight: 0.3 part of polyoxyethylene oleate, 14 parts of ethyl methyl benzene, 0.3 part of disodium diaminotetraacetate, 14 parts of diethylbenzylamine, 33 parts of diethylenetriamine and 25 parts of ethyl methyl benzene;

step three, crushing the cleaned plastic, wherein a stirrer is arranged in the crusher, and crushing is carried out while stirring, so that crushing is more thorough;

step four, firstly, washing the crushed plastic by a roller, and then putting the washed plastic into a water tank for rinsing;

fifthly, drying the rinsed plastic at the drying temperature of 95 ℃ for 2 h;

and step six, adding an anti-aging agent, an anti-ultraviolet agent and a coupling agent into the dried plastic, mixing, conveying the mixture into a plastic extruder for molding, and finally carrying out traction granulation.

Example 3

A method for preparing high-valued recycled plastic particles by utilizing a recycled garbage film is carried out according to the following steps:

selecting a PE/PP material from the recycled garbage film, and removing a composite film/a film with an aluminum foil;

step two, washing the sorted plastic with water, adding a medicament to remove oil stains and dirt, wherein the medicament comprises the following raw materials in parts by weight: 0.2 part of polyoxyethylene oleate, 13 parts of ethyl methyl benzene, 0.2 part of disodium diaminotetraacetate, 13 parts of diethylbenzylamine, 32 parts of diethylenetriamine and 24 parts of ethyl methyl benzene;

step three, crushing the cleaned plastic, wherein a stirrer is arranged in the crusher, and crushing is carried out while stirring, so that crushing is more thorough;

step four, firstly, washing the crushed plastic by a roller, and then putting the washed plastic into a water tank for rinsing;

step five, drying the rinsed plastic at the drying temperature of 90 ℃ for 1.5 h;

and step six, adding an anti-aging agent, an anti-ultraviolet agent and a coupling agent into the dried plastic, mixing, conveying the mixture into a plastic extruder for molding, and finally carrying out traction granulation.

Example 4

A method for preparing high-valued recycled plastic particles by utilizing a recycled garbage film is carried out according to the following steps:

selecting a PE/PP material from the recycled garbage film, and removing a composite film/a film with an aluminum foil;

step two, washing the sorted plastic with water, adding a medicament to remove oil stains and dirt, wherein the medicament comprises the following raw materials in parts by weight: 0.2 part of polyoxyethylene oleate, 15 parts of ethyl methyl benzene, 0.2 part of disodium diaminotetraacetate, 15 parts of diethylbenzylamine, 32 parts of diethylenetriamine and 26 parts of ethyl methyl benzene;

step three, crushing the cleaned plastic, wherein a stirrer is arranged in the crusher, and crushing is carried out while stirring, so that crushing is more thorough;

step four, firstly, washing the crushed plastic by a roller, and then putting the washed plastic into a water tank for rinsing;

step five, drying the rinsed plastic at the drying temperature of 90 ℃ for 3 h;

and step six, adding an anti-aging agent, an anti-ultraviolet agent and a coupling agent into the dried plastic, mixing, conveying the mixture into a plastic extruder for molding, and finally carrying out traction granulation.

Example 5

A method for preparing high-valued recycled plastic particles by utilizing a recycled garbage film is carried out according to the following steps:

selecting a PE/PP material from the recycled garbage film, and removing a composite film/a film with an aluminum foil;

step two, washing the sorted plastic with water, adding a medicament to remove oil stains and dirt, wherein the medicament comprises the following raw materials in parts by weight: 0.4 part of polyoxyethylene oleate, 13 parts of ethyl methyl benzene, 0.4 part of disodium diaminotetraacetate, 13 parts of diethylbenzylamine, 35 parts of diethylenetriamine and 24 parts of ethyl methyl benzene;

step three, crushing the cleaned plastic, wherein a stirrer is arranged in the crusher, and crushing is carried out while stirring, so that crushing is more thorough;

step four, firstly, washing the crushed plastic by a roller, and then putting the washed plastic into a water tank for rinsing;

step five, drying the rinsed plastic at 100 ℃ for 1.5 h;

and step six, adding an anti-aging agent, an anti-ultraviolet agent and a coupling agent into the dried plastic, mixing, conveying the mixture into a plastic extruder for molding, and finally carrying out traction granulation.

Wherein example 2: a method for preparing high-valued recycled plastic particles by utilizing a recycled garbage film is carried out according to the following steps:

selecting a PE/PP material from the recycled garbage film, and removing a composite film/a film with an aluminum foil;

step two, washing the sorted plastic with water, adding a medicament to remove oil stains and dirt, wherein the medicament comprises the following raw materials in parts by weight: 0.3 part of polyoxyethylene oleate, 14 parts of ethyl methyl benzene, 0.3 part of disodium diaminotetraacetate, 14 parts of diethylbenzylamine, 33 parts of diethylenetriamine and 25 parts of ethyl methyl benzene;

step three, crushing the cleaned plastic, wherein a stirrer is arranged in the crusher, and crushing is carried out while stirring, so that crushing is more thorough;

step four, firstly, washing the crushed plastic by a roller, and then putting the washed plastic into a water tank for rinsing;

fifthly, drying the rinsed plastic at the drying temperature of 95 ℃ for 2 h;

and step six, adding an anti-aging agent, an anti-ultraviolet agent and a coupling agent into the dried plastic, mixing, conveying the mixture into a plastic extruder for molding, and finally carrying out traction granulation. Is the best embodiment of the invention.

The method for preparing the high-valued recycled plastic particles by utilizing the recycled garbage films, provided by the invention, provides a proper treatment method for the utilization of the waste plastic films, so that the waste plastic films are harmless and can be recycled, the utilization rate of the added anti-aging agents and ultraviolet-resistant agents is high, and the obtained recycled particles have good aging resistance.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.