阅读说明：本技术 一种纳米抗菌垃圾袋 (Nano antibacterial garbage bag ) 是由 叶景浓 王九龙 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种纳米抗菌垃圾袋,包括如下重量份的组分：高密度聚乙烯65-75份、线性低密度聚乙烯20-25份、开口剂1-5份、抗菌剂3-10份,其中,所述抗菌剂为PE抗菌母粒和纳米二氧化硅的混合。本发明通过PE抗菌母粒和纳米二氧化硅复配作为抗菌剂,能够大大提升其抗菌性,能有效抑制垃圾中的腐烂、发酵,减少垃圾腐烂发出的异味及细菌繁殖。(The invention discloses a nano antibacterial garbage bag which comprises the following components in parts by weight: 65-75 parts of high-density polyethylene, 20-25 parts of linear low-density polyethylene, 1-5 parts of an opening agent and 3-10 parts of an antibacterial agent, wherein the antibacterial agent is a mixture of PE antibacterial master batches and nano silicon dioxide. According to the invention, the PE antibacterial master batch and the nano silicon dioxide are compounded to serve as the antibacterial agent, so that the antibacterial property of the garbage can be greatly improved, the garbage can be effectively inhibited from rotting and fermenting, and the peculiar smell and bacterial reproduction generated by garbage rotting can be reduced.)

1. The nano antibacterial garbage bag is characterized by comprising the following components in parts by weight: 65-75 parts of high-density polyethylene, 20-25 parts of linear low-density polyethylene, 1-5 parts of an opening agent and 3-10 parts of an antibacterial agent, wherein the antibacterial agent is a mixture of PE antibacterial master batches and nano silicon dioxide.

2. The nano-antibacterial garbage bag according to claim 1, wherein the mass ratio of the PE antibacterial masterbatch to the nano-silica is (1-3): 1.

3. The nano-antibacterial garbage bag according to claim 1, wherein the nano-silica has a particle size of 1-10 nm.

4. The nano-antimicrobial trash bag of claim 1, wherein the opening agent is a mixture of diatomaceous earth and sodium benzoate.

5. The nano-antibacterial garbage bag according to claim 4, wherein the mass ratio of the diatomite to the sodium benzoate is (1-4): 1.

6. The nano-antibacterial garbage bag according to claim 1, further comprising 0.5-1.5 parts of modified nano-TiO 2.

7. The nano-antibacterial garbage bag according to claim 6, further comprising 1-5 parts of phenolic resin and 1-3 parts of aluminum stearate.

8. The nano-antibacterial garbage bag of claim 7, further comprising 0.1-0.7 parts of poly (ethylene succinate).

Technical Field

The invention mainly relates to the field of garbage bags, in particular to a nano antibacterial garbage bag.

Background

the garbage bag is a bag for containing garbage as the name implies, brings convenience to thousands of households, provides important guarantee for environmental protection, and is even beneficial to garbage recycling and sorting. However, the garbage bags are mainly made of plastics, the plastics are extracted from petroleum, the garbage bags can be buried under the ground for about 200 years and can be rotten, the soil is seriously polluted, and if an incineration treatment mode is adopted, harmful smoke and toxic gas can be generated, and the environment is polluted for a long time.

China needs to use 10 hundred million plastic bags for buying vegetables every day, and the consumption of other various plastic bags is more than 20 hundred million every day. Beijing abandons 23 hundred million plastic bags every year, produces 14 million tons of waste plastic packaging garbage, and accounts for 3 percent of the whole household garbage. 19 million tons of waste plastic packaging garbage are generated in Shanghai every year, and account for 7 percent of the total amount of the household garbage. The amount of waste plastic packaging garbage of Tianjin per year is more than 10 ten thousand tons. Plastic bags given in markets are mainly non-degradable and if used as trash bags, they are a serious environmental hazard. How to solve the white pollution caused by plastic products is a common problem facing all people. At present, in various solutions, the development of degradable plastics becomes a research hotspot which attracts attention all over the world, and a degradable garbage bag with stable quality, good toughness and long service life and a preparation method thereof are urgently needed to meet the market demand.

Disclosure of Invention

Based on the antibacterial agent, the PE antibacterial master batch and the nano silicon dioxide are compounded to serve as the antibacterial agent, so that the antibacterial property of the nano antibacterial garbage bag can be greatly improved, the garbage can be effectively prevented from rotting and fermenting, and peculiar smell and bacterial reproduction caused by garbage rotting are reduced.

The invention is realized by the following technical scheme:

A nano antibacterial garbage bag comprises the following components in parts by weight: 65-75 parts of high-density polyethylene, 20-25 parts of linear low-density polyethylene, 1-5 parts of an opening agent and 3-10 parts of an antibacterial agent, wherein the antibacterial agent is a mixture of PE antibacterial master batches and nano silicon dioxide.

the high-density polyethylene is purchased from Xintong Tung plastic raw material Limited company of Dongguan city, the model is HDPE 6888, the high-density polyethylene is nontoxic, tasteless and odorless white particles, the melting point is 130 ℃, the relative density is 0.941-0.960, and the high-density polyethylene has good heat resistance and cold resistance, good chemical stability, higher rigidity and toughness, good mechanical strength, dielectric property and good environmental stress cracking resistance.

The linear low-density polyethylene is purchased from Guangdong Guangxi Hecheng supply chain Limited company, the model is FB2230, the linear low-density polyethylene is a copolymer formed by polymerizing ethylene and a small amount of high-grade alpha-olefin (such as butene-1, hexene-1, octene-1, tetramethylpentene-1 and the like) under the action of a catalyst and high pressure or low pressure, the density is between 0.915 and 0.940 g/cubic centimeter, the linear low-density polyethylene is nontoxic, tasteless and odorless, is in the form of milky white particles, is reinforced membrane-grade PE, and integrates excellent stretching coextrusion performance, good ink scraping comparison and excellent mechanical performance. Films made from linear low density polyethylene have high impact strength, high tensile strength and high stiffness. The product can maintain its toughness at low temperatures. Compared with LDPE, the high-strength polyethylene has the advantages of high strength, good toughness, strong rigidity, heat resistance, cold resistance and the like, has good environmental stress cracking resistance, tear strength resistance and the like, and can resist acid, alkali, organic solvents and the like.

The PE antibacterial master batch is purchased from Guangzhou Yibo mildew-proof antibacterial science and technology Limited company, has the product model of GNCE5700-PE10, is an antibacterial agent which adopts organic and inorganic composite components, is prepared by selecting a high-quality PE raw material as a carrier and combining advanced dispersion technology and manufacturing technology, and is a special antibacterial master batch for producing antibacterial PE. The added plastic product meets the requirements of domestic and international antibacterial standards, and the antibacterial activity value of the added plastic product to common staphylococcus aureus, escherichia coli, candida albicans and the like is greater than 2.0 (equal to or greater than 99 parts). According to the invention, the PE antibacterial master batch and the nano silicon dioxide are compounded, so that the antibacterial property of the composite material can be greatly improved, the rotting and fermentation of garbage can be effectively inhibited, and the peculiar smell and bacterial reproduction generated by garbage rotting can be reduced.

In some embodiments, the mass ratio of the PE antibacterial masterbatch to the nano-silica is (1-3): 1.

The PE antibacterial master batch and the nano silicon dioxide are compounded according to a specific proportion, so that the antibacterial performance of the garbage bag is further improved.

In some embodiments, the nanosilica has a particle size of 1-10 nm. The invention selects 1-10nm silicon dioxide, which can be better melted in high density polyethylene and linear low density polyethylene.

In some of these embodiments, the opening agent is a mixture of diatomaceous earth and sodium benzoate. According to the invention, the diatomite and the sodium benzoate are compounded to be used as the opening agent, so that the garbage bag has excellent opening performance, low friction coefficient and obviously improved tensile strength. And is easy to disperse when blowing the film.

In some embodiments, the ratio of the diatomaceous earth to sodium benzoate by mass is (1-4): 1.

In some embodiments, the garbage bag further comprises 0.5-1.5 parts of modified nano TiO 2. By adding the modified nano TiO2, the dispersion of the nano TiO2 in a garbage bag system can be fully promoted, and the photodegradation rate of the garbage bag can be improved; in addition, under the synergistic effect of the modified nano TiO2, the PE antibacterial master batch and the nano silicon dioxide, the garbage bag has excellent heat resistance, the antibacterial property of the garbage bag is further improved, and the garbage bag is safe and non-toxic to a human body.

In some embodiments, the trash bag further comprises 1-5 parts phenolic resin and 1-3 parts aluminum stearate.

in some embodiments, the trash bag further comprises 0.1-0.7 parts of poly (ethylene succinate). The poly (ethylene succinate) can improve the toughness of the garbage bag and prevent tearing.

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

According to the invention, the PE antibacterial master batch and the nano silicon dioxide are compounded to serve as the antibacterial agent, so that the antibacterial property of the garbage can be greatly improved, the garbage can be effectively inhibited from rotting and fermenting, and the peculiar smell and bacterial reproduction generated by garbage rotting can be reduced. Further adding modified nano TiO2, the dispersion of nano TiO2 in the garbage bag system can be fully promoted, and the photodegradation rate of the garbage bag can be improved; in addition, under the synergistic effect of the modified nano TiO2, the PE antibacterial master batch and the nano silicon dioxide, the garbage bag has excellent heat resistance, the antibacterial property of the garbage bag is further improved, and the garbage bag is safe and non-toxic to a human body.

The nano antibacterial garbage bag has the effects of inhibiting bacteria and fungi, avoiding the rotting and fermentation of organic matters in garbage and reducing the peculiar smell generated by the rotting of the garbage.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.