Chemical Plastic

February 10, 2012

We are Back Home: Little Penguins Contaminated by Petroleum Back to the Sea

 

2 months ago, on the Tauranga coast (New Zealand) a serious oil spill occur, which caused more than 300 small penguin homeless. So lucky animal protection experts help them, they washed the body, to feed them belly full. Now, these little guys want to go home! Watch them staggered go to the sea, in addition to interesting, are you still felt a little touched?

Oil spills are a catastrophe, and there is little that can be done to combat the tons of slick oil that leak from the ships that have run aground. The New Zealand oil spill that occurred on October 5th, 2011 has been severely damaging to the local ecosystem.

Now waddling as fast as their little legs can carry them, these excited penguins have good reason to be happy. Their delighted flight towards the sealine on Mount Maunganui beach in Tauranga, New Zealand, follows almost two months in humane captivity. With a mixture of confusion and excitement some ran in the wrong direction, some of the 49 Little Blue Penguins peeked out carefully before emerging onto the sand.

Wildlife officials nursed some 343 of the penguins back to health after they were effectively tarred and feathered when a cargo ship ran aground on a reef near Tauranga in early October, covering them in oil. The vessel called the Rena became stranded on the rocks and its torn hull released some 400 tons of fuel into the ocean. It was New Zealand’s worst sea pollution disaster and it killed more than 2,000 sea birds. But these penguins were the lucky ones and, though they were a little weaker for their time being cleaned and pampered by the wildlife rescue staff, they were always destined to return to the ocean.

This is a warm story happened with cool chemistry, isn’t it?

Original post: Chemical Plastic

July 28, 2010

Watch baby’s food

Filed under: Chemical Related Story — Administrator @ 7:00 am

Hi, little baby! watch the bottle which you drink.

      Nowadays with the rapid development of economy, the standard of people’s living level is ever increasing, especially those new born babies. As is known to all, the child is the future of nation, so parents pay great attention to baby’s health, but recently, parents have began to find that food which is used to feed baby are threatened  by plastic which can cause great harm to baby’s health.

      An Auckland mother says she found a piece of plastic in her daughter’s baby food.

      She is now considering a boycott of all Wattie’s products.

      The woman said she bought a 170 gram jar of Wattie’s Moroccan Lamb baby food from a Countdown Supermarket in Upper Hutt while on holiday there last week.

      She was upset to find a piece of plastic, about the size of a 10 cent coin, in the jar when she was feeding her eight-month-old daughter Sophia on Sunday night.

      “I thought it was a piece of onion because it was clear but then realised it was actually plastic.”

      Though Sophia did not swallow the plastic, the woman was concerned that residue from the plastic may have seeped into the food when it was heated in the microwave, because her daughter vomited soon after consuming the product, forcing her to seek medical advice.

      The woman said it took three attempts to contact someone at Wattie’s. She was told the company was unsure what the plastic was or how it got into the food. Wattie’s said it would send her a voucher that could be used to buy any Wattie’s product, the woman said. “I think it is a big safety issue. I could easily have put it [the plastic] into her mouth.

     “I just want Wattie’s to check their products properly and I want to warn people that they need to be careful as this could happen to them.”

     Wattie’s general manager of quality Paddy O’Brien was surprised to hear of the plastic find.

    “Baby food – we obviously treasure our reputation there. We don’t have many issues at all with baby food. We have all the sophisticated systems we can get to try and stop this sort of thing happening.”

     Wattie’s would need to send the bit of plastic to the factory in Australia where the product was made to find out exactly what it was.
     A  lot of measurement have been put to investigate this thing which apprears in baby’s stuff.Hopefully, everything will be checked out.

July 23, 2010

Filed under: Chemical Related Story — Administrator @ 6:56 am

Nowadays with the rapid development of technology, people are becoming more and more concerned about their appearance. In that way, the cosmetic surgery is ever increasing due to people’s attitude towards beauty. As is known to all, beauty can be divided into inner beauty and outer beauty, which is the real beauty which we should regard? It is hard to tell. But there is a phenomenon which people is more interested in becoming an outer beautiful woman or man.

      Since people are interested in doing cosmetic surgery, let us talk something about that.

How can I determine if a plastic surgeon is right for me?

A visit to the plastic surgeon gives you an opportunity to meet them, where you can gauge their personality and behavior. It’s always good if you feel comfortable and relaxed around them. The visit also is important for evaluating their credentials and experience. It is important that they are Board Certified plastic surgeons, meaning that the American Board of Plastic Surgery has accredited them. This ensures that they have undergone all the rigorous education and training to be a plastic surgeon in the United States. Most plastic surgeons will have before and after pictures of their patients that you can view. This allows you to assess the quality of their work.

The following are some recommended questions to ask the plastic surgeon during the initial consultation appointment:

  • How many procedures of this type have you performed?
  • How long will the procedure take?
  • What are the common risks associated with the procedure?
  • How long is the average recovery time for this procedure?
  • Where will you perform the surgery?
  • What is the total cost of the procedure?
  • What is your policy on surgical revisions?

Does plastic surgery hurt ?

Filed under: Chemical Related Story — Administrator @ 6:32 am

Plastic surgery is a medical specialty concerned with the correction or restoration of form and function. While famous for aesthetic surgery, plastic surgery also includes many types of reconstructive surgery, hand surgery, microsurgery, and the treatment of burns. The word “plastic” derives from the Greek plastikos meaning to mould or to shape; its use here is not connected with the synthetic polymer material known as plastic.

In plastic surgery, the transfer of skin tissue is a very common procedure. Usually, good results are expected from plastic surgery that emphasizes careful planning of incisions so that they fall in the line of natural skin folds or lines, appropriate choice of wound closure, use of best available suture materials, and early removal of exposed sutures so that the wound is held closed by buried sutures.

With increased media attention on beauty and perfection, celebrities and those alike are turning to plastic surgery more and more. For those who are not living on the salary of a celebrity, they are taking out loans to achieve their plastic perfection summing up to approximately $83,000 for 14 surgeries.

Though media and advertising do play a large role in influencing many people’s lives, researchers believe that plastic surgery obsession is linked to psychological disorders. Body dysmorphic disorder is seen as playing a large role in the lives of those who are obsessed with going under the knife in order to achieve physical perfection. People with this disorder are so preoccupied with their looks that it takes over their lives.

For those whose doctors refuse to perform any further surgeries, they are turning to “do it yourself” plastic surgery, injecting themselves in their home, running extreme safety risks. but does plastic surgery hurt?This will depend on the type of surgery and the patient. Generally speaking, non-surgical plastic surgery procedures will not cause a great deal of pain. For surgical procedures, these will be invasive and thus appropriate precautions are taken to ensure the highest level of safety and minimal discomfort during and after the procedure. These procedures will typically use anesthetics and sedatives so you won’t feel a thing during the operation. Where it hurts, is usually during the recovery period, and only then any pain or discomfort will be temporary until you are fully recovered. Plastic surgeons will give you strict orders to reduce your activity level to ensure that healing progresses at a fast rate. Painkillers can be prescribed or purchased to reduce any pain or discomfort.

July 21, 2010

Paper or plastic bags?

Filed under: Chemical Related Story — Administrator @ 7:12 am

It’s an old question, and still in debate, when it is time to check out when we are doing grocery shopping: paper bag or plastic bag? It seems like it should be an easy choice, but there’s an incredible number of details and inputs hidden in each bag. From durability and reusability to life cycle costs, there’s a lot more to each bag than meet the eye. Let’s figure it out behind each bags.
   Paper is made from trees. The logging industry is huge, and the process to get that paper bag to the grocery store is long, sordid and exacts a heavy toll on the planet. First, the trees are found, marked and felled in a process that all too often involves clear-cutting, resulting in massive habitat destruction and long-term ecological damage.

Once the trees are collected, they must dry at least three years before they can be used. More machinery is used to strip the bark, which is then chipped into one-inch squares and cooked under tremendous heat and pressure. This wood stew is then “digested,” with a chemical mixture of limestone and acid, and after several hours of cooking, what was once wood becomes pulp. It takes approximately three tons of wood chips to make one ton of pulp.

The pulp is then washed and bleached; both stages require thousands of gallons of clean water. Coloring is added to more water, and is then combined in a ratio of 1 part pulp to 400 parts water, to make paper. The pulp/water mixture is dumped into a web of bronze wires, and the water showers through, leaving the pulp, which, in turn, is rolled into paper.

Unlike paper bags, plastic bags are typically made from oil, a non-renewable resource. Plastics are a by-product of the oil-refining process, accounting for about four percent of oil production around the globe. The biggest energy input is from the plastic bag creation process is electricity, which, in this country, comes from coal-burning power plants at least half of the time; the process requires enough juice to heat the oil up to 750 degrees Fahrenheit, where it can be separated into its various components and molded into polymers. Plastic bags most often come from one of the five types of polymers — polyethylene — in its low-density form (LDPE), which is also known as #4 plastic.

l        A look at the facts and numbers
Further insight into the implications of using and recycling each kind of bag can be gained from looking at overall energy, emissions, and other life cycle-related costs of production and recycling. According to a life cycle analysis by Franklin Associates, Ltd, plastic bags create fewer airborne emissions and require less energy during the life cycle of both types of bags per 10,000 equivalent uses — plastic creates 9.1 cubic pounds of solid waste vs. 45.8 cubic pounds for paper; plastic creates 17.9 pounds of atmospheric emissions vs. 64.2 pounds for paper; plastic creates 1.8 pounds of waterborne waste vs. 31.2 pounds for paper.

Paper bags can hold more stuff per bag — anywhere from 50 percent to 400 percent more, depending on how they’re packed, since they hold more volume and are sturdier. The numbers here assume that each paper bag holds 50 percent more than each plastic bag, meaning that it takes one and half plastic bags to equal a paper bag — it’s not a one-to-one comparison, even though plastic still comes out ahead.

It’s important to note that all of the above numbers assume that none of the bags are recycled, which adds a lot of negative impacts for both the paper and plastic bags; the numbers decrease in size (and the relative impacts decrease) as more bags are recycled. Interestingly, the numbers for paper bag recycling get better faster — the more that are recycled, the lower their overall environmental impact — but, because plastic bags use much less to begin with, they still ends up creating less solid and waterborne waste and airborne emissions.

l        Paper and plastic bags’ required energy inputs
From the same analysis, we learn that plastic also has lower energy requirements — these numbers are expressed in millions of British thermal units (Btus) per 10,000 bags, again at 1.5 plastic bags for every one paper bag. Plastic bags require 9.7 million Btus, vs. 16.3 for paper bags at zero percent recycling; even at 100% recycling rates, plastic bags still require less — 7.0 to paper’s 9.1. What does that mean to me and you? Plastic bags just take less energy to create, which is significant because so much of our energy comes from dirty sources like coal and petroleum.

Both paper and plastic bags require lots and lots of resources and energy, and proper recycling requires due diligence from both consumer and municipal waste collector or private recycling company, so there are a lot of variables that can lead to low recycling rates.

Ultimately, neither paper nor plastic bags are the best choice; we think choosing reusable canvas bags instead is the way to go. From an energy standpoint, according to this Australian study, canvas bags are 14 times better than plastic bags and 39 times better than paper bags, assuming that canvas bags get a good workout and are used 500 times during their life cycle.

paper plastic history

Filed under: Chemical Related Story — Administrator @ 6:07 am

In 1852 Francis Wolle patented in the United States, and later in France and England, a machine that he devised for making paper bags. It was the first of its kind, and covers the fundamental principle of the many similar machines that are now used. Paper bag is used for holding customer’s purchases. Allowing customer to purchase and carry more products

Here are milestone of paper bags:

1869 Francis Wolle and his brother and other paper bag makers found Union Paper Bag Machine Company.
1870 Margret Knight invents a device to cut, fold and paste paper bag bottoms, Margaret Knight of Boston is credited with about 90 inventions and 22 patents. Her patents covered textile and shoe-making machinery, domestic devices, and even a “sleeve-valve” automobile engine. Knight’s greatest success, however, was the first machine to make the square-bottomed paper bags. Others had been trying to develop such a machine for years, since the envelope-shaped bags then used were narrow and flimsy.
About two years after the Civil War she went to work for the Columbia Paper Bag Company in Springfield, Massachusetts. While in the factory, she invented a device to cut, fold and paste bag bottoms. Initially her employer complained about the time she spent on the device. When she suggested she might consider selling the rights to him if it worked, he gave in. After doing thousands of trial bags on a wooden machine, she had an iron model produced in Boston.

However, before she could place the patent application, she found a man named Charles Annan who had studied her machine while visiting the factory was attempting to a patent machine suspiciously similar to her own. Knight, 33 at the time, filed a patent interference suit against Annan. She played to win, spending $100 a day plus expenses for 16 days of depositions of herself and other key Boston witnesses. Annan claimed that because Knight was a woman she could not possibly understand the mechanical complexities of the machine. Due to her careful notes, diary entries, samples and expertise the court ruled in her favor.
The paper bag-folding machine was not Knight’s only invention. Besides devices that improved her paper bag machine, her other inventions included a new window frame and sash design, a numbering machine, an automatic boring tool, and a spinning or sewing machine. The total number of her inventions is generally thought to be eighty-nine. They earned her a good deal of money, but when she died in 1914 her fortune had dwindled down to a mere $300.
1872 132,890 (US) issued November 12, 1872 to Charles Annan for paper bag machine
1883 Charles Stilwell awarded patent for making Square-Bottom Paper Bag w/ pleated sides
1890 William Purvis on August 19, 1890 for a paper-bag machine, the combination of two suction-formers having perforated surfaces, between which the ends of the paper tube are fed, and provided with two independent grooves arranged at different positions of the length of the formers and out of line with each other. He later licensed the paper bag invention to Union Paper Bag Co, of New York.

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