Recently, major media portals have issued this big environmental warning :
The British "Daily Mail" reported on December 1 that the researchers found that:
A mussel containing an average of 90 particles of plastic , and 6 oysters contain about 50 plastic particles .
This means that if a person eats mussels twice a week , he will eat up to 11,000 plastic particles a year .
And this danger is likely to increase .
Therefore, under current marine pollution conditions, eating seafood is about equal to eating plastic .
In this way, the words that were originally warm-hearted became creepy :
"Grandpa, give you seafood, and make up your body."
Greetings on holidays are:
"Master, how much plastic did you eat today ?"
"A lot of, half a catty, you?" "One or two!" " Oh! Still you are healthy! "
If the great saint is alive , the eyes of the fire will be seen, and the plastic particles will accumulate in people's stomachs, circulate in the blood, and sneeze and sneeze out . Will you feel that you have entered a plastic country ?
How about you, have you eaten a few pounds of plastic today?
This is not the plastic for the first time and the food process is linked.
For example, a while ago, McDonald's fritters .
In Shanghai, a McDonald's store's fritters were found to have a plasticizer (DEHP) value of 1.35 mg/kg , which is close to the national interim limit .
Unknown people may ask:
Is the plasticizer used for cooking? And why add it to the fritters?
Plasticizers, in simple terms, are additives that increase the softness of the material or liquefy the material . The main objects added are: plastic, concrete, drywall materials, cement plaster, etc.
However, if the object is added to the fritters, it will make the fritters more fluffy and soft .
Therefore, unscrupulous merchants have used their brains to add plasticizers into foods and use them as cheap substitutes for cloud additives .
Of course, plasticizers are toxic and can interfere with the body's endocrine and endanger health .
And at the beginning, the plasticizer was paired with plastic .
Plasticizers help hard plastics (such as polyvinyl chloride) soften to make plastic products such as raincoats and slippers .
Another type of plastic, which is an advanced version , such as polyethylene, polypropylene, etc., is soft in its own right, and does not require plasticizers. This kind of plastic itself is not toxic , can be used to make potable water drinking water barrels, plastic Supplies such as bottles .
In the development of plastics, the functions are constantly improved , the application is more extensive, and the characteristics optimized by plasticizers are just the tip of the iceberg in the history of plastics development.
The earliest of plastic, and not a chemical laboratory or factory-developed.
It was born in the studio and the inventor was a photographer named Alexander Parks .
In the 19th century without photographic film and digital cameras, photographers needed to make their own alternatives to film functions.
Therefore, photographers are not only artists, but also... chemists .
Parkes processing collodion, attempts to mix with camphor , thereby invented a bendable deformable material, is named " Pa Kexin ."
Since then, Parks has opened the door to the new world. He used "Paxin" to make a variety of household items : combs, pens, buttons and jewelry , from a photographer to "Edison."
Plastics also saved an elephant in its development .
This has to start with billiards .
At the beginning, table billiards were only entertainment activities of the court nobles , because the raw materials for billiards were ivory .
And an ivory can only make 5 billiards , and the ivory billiards that are made need to be layered to ensure the same weight .
Therefore, from the perspective of making billiards, Britain needs tens of thousands of ivory every year .
This situation continued into 1868, due to a shortage of ivory , a factory owner in the United States offered a reward of 10,000 US dollars for the substitute of ivory billiards .
In the end, the American printing worker John Wesley Heyt was successfully developed and took the bonus.
He mixed nitrocellulose, camphor, ethanol, etc. to obtain a new type of material .
It is flexible, hard and not brittle . The most important thing is that it greatly reduces the cost of billiard production and promotes the conversion of billiards to mass entertainment .
It is " celluloid "! Celluloid means " fake ivory ", the scientific name is nitrocellulose plastic.
Because of it, Heyt has also been called the father of the American plastics industry .
However, although tens of thousands of elephants were saved, early people did not like the "celluloid" billiards.
It is very easy to catch fire when it is not improved , so the "warning" sign will be marked on the billiard ball.
But the same year, a photographer , George Eastman, but then this new material treasure .
He immediately invented a celluloid film .
With its light weight, small size, portability and low cost , it combines traditional glass negatives.
In order to match the film, George Eastman also invented the camera using the Celo film , which is the Kodak camera that will be used all over the world .
Although celluloid has greatly changed people's lives, its high temperature and flammable and explosive characteristics have made it a hidden threat.
In the unremitting exploration inventor of the plastic family of third generation - David Wright was born.
Similar to "Paxin", "Becklet" is also named after the inventor , who is Leo Hendrick Beclan, a Belgian American.
At the beginning of the 19th century, the power industry will develop and require a large amount of insulating materials in electrification .
The price of shellac used in the original rose and then rose . Beckland believes that the market for insulating materials is infinite , and he tries his best to find alternatives to shellac .
He was inspired by the experimental findings of the chemist Adolf von Bayer , who processed the residue after the reaction of phenol and formaldehyde to obtain a translucent substance.
This is the phenolic plastic "Becklet", and Baekeland also registered a patent in 1907 .
On May 20, 1940, Time magazine called Beckland " the father of plastics. "
In fact, if Adolf von Bayer pays a little attention in his own experiments , this name may be his. Only then, he only wanted to make dyes .
In the 1930s , nylon in the plastic family came out.
The inventor is DuPont of the United States .
Although nylon was born late in the plastics family, it is not lost to its predecessors.
Its birth changed two things:
First, the situation in World War II ; second, female aesthetics .
During the Second World War, nylon was an important munitions item. Due to its high strength, good elasticity and fatigue resistance , it became the material for parachute ropes , which promoted the development of paratroopers and affected the war situation.
In addition, nylon stockings were sold to the world during World War II and were favored by women.
In 1940, when the nylon stockings were first listed, they were queued for purchase by the girls, and they were swept away within two days .
The following year, because nylon was classified as a munitions item, the supply of nylon stockings was also limited . The price of a pair of stockings on the black market was priced at $4,000 .
What if I can't buy it? They chose to draw stockings on their legs .
After the Second World War, the application of nylon became more and more extensive, and it gradually broke through the textile industry, and it also shined in the fields of rail transit, automobile manufacturing, electronics and electrical .
At present, China's annual output of plastics is 3 million tons , consumption is more than 6 million tons , and annual waste is more than 1 million tons. Among these discarded plastics, imported "foreign garbage" plastics are also included .
The Chinese market is so good that Chinese buyers can pay more than twice the price of others .
This is the opening of the Amsterdam Film Festival's award-winning documentary, The Plastics Kingdom , said Daniel Maher, the waste collection manager at Berkeley.
Meanwhile, some in the recycle bin without sorting of plastic waste is pressed into blocks, loaded on to China 's cargo ship.
The director of the documentary, Wang Jiuliang, followed the shooting and found that the garbage eventually entered the waste plastic recycling plant of large and small .
From the northeast to the north China to the east, to the south of China, there are some large and relatively concentrated waste plastic producing areas in almost every province in the northeastern coastal areas, not to mention the indiscriminate scattered small factories. So I feel that this is not only an environmental issue, but also a big industry problem .
Wang Jiuliang interviewed the owner of a local plastic sorting factory. The boss said:
There are plastic markets all over the country, and no one can extinct it .
Although it is rubbish, it can be used. It can make farmers create wealth, and you can't say that it is not good.
After the recycling of foreign plastics, there are two kinds of waste disposal methods: incineration and landfill .
Incineration of plastic waste, air pollution , harmful gases exceeded the standard.
Landfill plastic waste, erode farmland , and rain into the river .
When sorting and inspecting plastic waste, it needs to be washed with clean water, so that the entire water circulation system is also infected.
The village no one dared to drink the village well water, river water, rely on buying water from elsewhere . There are hundreds of vehicles that send water nearby, and the local industry has formed.
In short, the status quo of the villagers is also the current state of humanity:
Suffering from the prosperity brought by plastics , it also swallowed the consequences of plastic use .
All advantages and disadvantages are always combined.
The discovery and use of plastic has profoundly affected the human life and industrial development of the 20th century. Its invention was only 100 years old , and today's life is inseparable from plastic products.
At the same time, economic and durable plastics are also human living environment had an impact indelible:
the production of plastic difficult to natural degradation , a hundred years will not rot , will be buried underground soil compaction , damage to agricultural production, animal or eating plastic after the plastic particles can not digest , the body plastic particles and biological toxins in the food chain through an infinite loop accumulated ......
The biggest victims are ultimately: humans at the top of the food chain .
Imagine, maybe one day, humanity is extinct, but plastic... is still alive.
Among all kinds of science fiction , there may be a lack of description.
A description of " plastic taste ."
"Three-body" may end like this:
"I have a dream. Maybe one day, the bright sunshine can shine into the dark forest."
At this time, the sun here is falling, and now only the top of the mountain is exposed, like a bright light inlaid on the top of the mountain. gem.
The child has run away and bathed in the golden sunset with the grass.
The sun is falling, your children are not afraid?
"Of course not afraid, she knows that even if she does not exist , the plastic in the body will last forever. "
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