Plastic products have had an important impact on our lives, and the prices of plastic products have become increasingly attractive.
The first dispute was triggered in the late 1950s and early 1960s. At that time, there were many cases where infants and toddlers climbed into plastic bags used to cover and pack clothes and suffocated. The plastics industry therefore launched a large-scale public education campaign.
By the 1960s, plastics had been widely seen as an indicator of the outdated 50s consumer culture. The term "plastic" has become a shame to describe those despicable ideas. In the late 1960s, the Beatles once sang a "Polyethylene Pam" to describe people who could do anything to achieve their goals.
This is just a popular saying, no matter how plastic is still widely used, and in many cases plastic is more effective than other alternative materials and is more conducive to the environment. However, this has also caused a problem: due to the large number of applications of various plastic products, it has caused a lot of garbage and waste accumulation problems.
However, plastic products are really good. They are very durable, and the degradation rate is very slow. In some cases, burning plastics also releases harmful fumes. The production of plastic products also produces a large amount of dirty chemical pollutants and consumes fossil fuel supplies on Earth. This is also one of the problems.
In the 1990s, the recycling of plastic products became popular in the United States and around the world. Thermoplastics can be remelted and reused, while thermosets can also be used as the basis for filling materials, although the purity of the material will gradually decrease with each cycle. There are many ways in which plastic products can be returned to the processing of raw materials.
Products such as automobiles are currently involved in how to recycle large plastic parts. To help recycle plastic disposable products, the Plastic Bottle Institute of the Society of the Plastics Industry uses the currently popular method of distinguishing plastic bottles with plastic types. The inner wall of the reusable plastic bottle is marked with a triangular mark consisting of three folding arrows. The type of plastic used is marked with letters in the triangle: PET (Polyester), HDPE (High Density Polyethylene), PVC (Polychlorine) Ethylene), LDPE (low density polyethylene), PP (polypropylene), PS (polystyrene), and OTHER (other).
Unfortunately, the identification of recycled plastic products is very difficult. The biggest problem with the recycling of plastic products is that it is difficult for plastic wastes to be automatically classified, so it takes a lot of labor. Container-type plastic products are often made of plastics of one type and one color, and are relatively easy to classify, and consumer toy products such as portable phones are likely to consist of many small parts, including many different types and colors of plastics. . Because of the low value of the material itself, recycled plastics do not have any profit. Therefore, the recycling rate of U.S. plastic products is very low, only about 5%.
Currently research is being conducted on "biodegradable" plastic products that can be decomposed under sunlight. The addition of starch to the plastic can make it more easily degradable, but it still cannot guarantee complete decomposition of the plastic product. Some researchers have developed a completely degradable plastic that is synthesized using genetically functional bacteria, but this material is still very expensive.
To date, these plastics are too expensive and limited to be used. Critics have already pointed out that the only real problem they face is roadside rubbish, which is also the second most important issue to be considered. After such plastics are dumped into the garbage dump, they will become dry "mummies" that will remain for decades even if exposed to sunlight.
The first dispute was triggered in the late 1950s and early 1960s. At that time, there were many cases where infants and toddlers climbed into plastic bags used to cover and pack clothes and suffocated. The plastics industry therefore launched a large-scale public education campaign.
By the 1960s, plastics had been widely seen as an indicator of the outdated 50s consumer culture. The term "plastic" has become a shame to describe those despicable ideas. In the late 1960s, the Beatles once sang a "Polyethylene Pam" to describe people who could do anything to achieve their goals.
This is just a popular saying, no matter how plastic is still widely used, and in many cases plastic is more effective than other alternative materials and is more conducive to the environment. However, this has also caused a problem: due to the large number of applications of various plastic products, it has caused a lot of garbage and waste accumulation problems.
However, plastic products are really good. They are very durable, and the degradation rate is very slow. In some cases, burning plastics also releases harmful fumes. The production of plastic products also produces a large amount of dirty chemical pollutants and consumes fossil fuel supplies on Earth. This is also one of the problems.
In the 1990s, the recycling of plastic products became popular in the United States and around the world. Thermoplastics can be remelted and reused, while thermosets can also be used as the basis for filling materials, although the purity of the material will gradually decrease with each cycle. There are many ways in which plastic products can be returned to the processing of raw materials.
Products such as automobiles are currently involved in how to recycle large plastic parts. To help recycle plastic disposable products, the Plastic Bottle Institute of the Society of the Plastics Industry uses the currently popular method of distinguishing plastic bottles with plastic types. The inner wall of the reusable plastic bottle is marked with a triangular mark consisting of three folding arrows. The type of plastic used is marked with letters in the triangle: PET (Polyester), HDPE (High Density Polyethylene), PVC (Polychlorine) Ethylene), LDPE (low density polyethylene), PP (polypropylene), PS (polystyrene), and OTHER (other).
Unfortunately, the identification of recycled plastic products is very difficult. The biggest problem with the recycling of plastic products is that it is difficult for plastic wastes to be automatically classified, so it takes a lot of labor. Container-type plastic products are often made of plastics of one type and one color, and are relatively easy to classify, and consumer toy products such as portable phones are likely to consist of many small parts, including many different types and colors of plastics. . Because of the low value of the material itself, recycled plastics do not have any profit. Therefore, the recycling rate of U.S. plastic products is very low, only about 5%.
Currently research is being conducted on "biodegradable" plastic products that can be decomposed under sunlight. The addition of starch to the plastic can make it more easily degradable, but it still cannot guarantee complete decomposition of the plastic product. Some researchers have developed a completely degradable plastic that is synthesized using genetically functional bacteria, but this material is still very expensive.
To date, these plastics are too expensive and limited to be used. Critics have already pointed out that the only real problem they face is roadside rubbish, which is also the second most important issue to be considered. After such plastics are dumped into the garbage dump, they will become dry "mummies" that will remain for decades even if exposed to sunlight.
The Patient Bed is designed according to the patient's treatment needs and bed-ridden living habits, and is designed with family members to accompany it, with multiple nursing functions and operating buttons, and an insulated and safe bed. Patient bed is convenient for medical observation and inspection and operation of family members. It can also be used for healthy people, severely disabled, elderly, urinary incontinence, brain trauma patients in stable or convalescent treatment at home, mainly for practicality.
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