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Basic introduction of foam box

2022-07-14 00:00:00

First of all, it can be concluded that polyethylene foam (EPS) is non-toxic. It is not only used in many food packaging materials, but also immediately made into plastic lunch boxes, which are close to food materials. There is no need to doubt its safety coefficient. Now let'sManufacturer of foam boxWhat are the basic knowledge of foam box?

FoamInsulation boxWhat is it made of?

98% is gas, 2% polyethylene!

Polyethylene foam particles

The raw material of foam incubator is a kind of polyethylene foam particles - a kind of thermosetting raw material. After heated polyurethane foaming, each cubic volume contains 3 to 6 million individual closed bubbles with a gas volume of more than 98%. That structure gives it many characteristics. Because the relative density can be as low as 10-30kg/m3 (with a net weight of 1000Kg per cubic meter of water), only 1-2% of the water ratio! Therefore, polyethylene (EPS) is a lighter packaging product today. Under high loads, this type of material will be bent, and when subjected to fluctuations or falling off the road, it will have buffering and seismic effects; At the same time, EPS is a kind of raw material with excellent thermal insulation function because the heat conduction characteristics of the gas are not large and the gas is closed in the foam plastic without heat convection. It is widely used in refrigerators, refrigerated cabinets, cold storage, and other fields, and is also used as a thermal insulation raw material in civil engineering.

How long is the service life of foam incubator?

Polyethylene EPS has stable physical properties in water and soil environments and cannot be biodissolved; The inner cavity structure of EPS also slows down the infiltration of water; EPS has stable characteristics in water and most aqueous solutions, and it takes 50-100 years to dissolve completely. This feature also makes it wear a "white trash" sunshade hat. But it can be dissolved in organic solutions such as automotive gasoline, diesel engines, gasoline, xylene, toluene, etc. Therefore, the foam incubator cannot touch organic chemical aqueous solutions such as gasoline and ethanol for vehicles, or it will erode the foam incubator.

Manufacturer of foam box

When the foam incubator is exposed to ultraviolet radiation for a long time, the EPS surface will change from milky white to light yellow, and the raw materials will show ductility in a sense. This is the long-term outdoor foam incubator. A layer of lime will appear when you touch it. Although it will harm the ductility and compressive strength of the foam incubator, it is also surface. The essential compressive strength generally does not change much over the years.

Will foam incubator use additives?

The foam incubator is produced by molds, so the forming process of rubber and plastic products is selected: EPS particles are foamed with 30-50 times of pre polyurethane with 100 ℃ gas (or water vapor), and then they are placed for 24 hours to mature, and then the pre foam materials that have already been matured are placed in the mold shell made of aluminum or castings, and heated with 115-120 ℃ gas (or water vapor). At the same time, when the raw materials are surging, The surface layer of particles combines with each other by the effect of heat to form foam plastic parts. The entire process does not add any other additives, and simply uses EPS particles for heat treatment and extrusion, which is the entire process of state change.

Foam incubator equipped with residual harmful substances will cause vegetables to carry virus?

This is very likely. If the foam incubator used for vegetable planting was used to store toxic substances, its residue may cause the vegetable to carry virus.

However, this does not mean that growing vegetables in foam boxes is harmful. If the bowl containing chronic poison is not cleaned thoroughly, it can also cause poisoning. Is the bowl harmful?

In fact, the common foam incubator for vegetable planting is the wooden box for vegetable and fruit packaging, or the wooden box for aquatic products packaging, which is used to package food materials. Generally, it is not easy for foam incubators to immediately package toxic and side effects and corrosive chemicals - foam incubators are not corrosion resistant. If you use food materials or newly made special foam incubator, there is no such problem.

The rumor about the harmful effects of growing vegetables in the foam box sincerely hopes that everyone will stop intimidating themselves, so why follow the crowd. Believe in science, it is reliable!


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