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Everwide Newsletter No.195


Experiment § Light storage type art infusion glue

Light-storing art perfusion glue is a widespread application in our daily life. At night, we can find that the clock and watches emit a faint green glow; in fact, the principle of this is to coat the hands with a layer of light-storing paint to still recognize the time at night. Light-storing pigments are mainly composed of alumina and rare earth elements, which are inorganic pigments, so their chemical properties are very stable. Its luminous principle is to absorb and store sunlight or light and slowly release visible light in the dark. The cyclic process of its absorption → storage → luminescence can be repeated countless times. Each time the light is irradiated for 20 minutes, the light can be released for about 12 hours. There are many colors of these substances, such as yellow, green, red, etc., and there are relative light-storing pigments to choose from. Everwide Chemical has also recently received new demands from customers, hoping to develop similar applications for some handicrafts' perfusion, hoping to increase some different effects and visual feelings. The resins used in these applications must be stable in color and not yellowed to allow the fluorescent effect to exist for a long time; on the contrary, the resin's yellowing will lead to the deterioration of the fluorescent effect. Next time, when you find that the things placed at home will shine in the dark, maybe there will be Everwide glue inside.

─Author: Mr. Dan-Geng, Chang

 

Activity § Everwide's internship system

Many schools have an internship system, allowing students to work while exchanging credits to prepare for entry into the workplace in advance. Everwide Chemistry has cooperated with Formosa University of Science and Technology to carry out the internship program for 4 years. In addition to letting interns and colleagues work together in production and experience the hard work of labor, we also presented 3 extracurricular books to understand the difference between the workplace and the school. We have always thought, what more can we do? Starting this year, we have arranged for colleagues to explain the company's internal equipment to interns, and each tier of interns will arrange 8-hour courses. Including viscosity, spectral analysis, thermal analysis, gas-liquid chromatography, etc. We don't want interns to come to Everwide just to earn credits through work; we encourage them to participate in the company's internal and external education and training; we expect them to learn more, get in touch with colleagues, constantly explore what they want in the short days of Everwide, and have a better plan for the future. Extended reading: Interns introduce their intern life in the e-newsletter. Bi-weekly e-newsletter: 151, 174, 179

 

Knowledge § What are the types of bonding related bonds?

The chemical bonding related to adhesion is divided into

  1. Covalent bond: Two atoms each split an electron and share two electron pairs. This is the basic combination of organic compounds.

  2. Ionic bond: A bond formed by the attraction of ions with positive and negative charges.

  3. Metal bond: a chemical bond where a collection of metal atoms becomes a metal crystal.

  4. Hydrogen bond: the force of bonding through the hydrogen atoms of the atoms with larger negative electricity.

  5. Van der Waals force: the cohesive force (binding force) acting between neutral atoms and molecules without electric charge.

For adhesives, it is the best design to establish covalent bonds through functional groups reacting with each other; the design of ionic bonds is not available in every formula; the acid-base form is the most common, and sometimes the effect is not seen in the ring test; then there are hydrogen bonds, which are also quite strong. Many non-reactive systems are not available. For example, pressure-sensitive adhesives rely solely on Van der Waals force to provide adhesion.

 

Living § 2015 Tokyo FINETECH exhibition experience

In April this year, we went to Japan for the first time to participate in the exhibition; this action has a deep meaning for us, and I will talk about it. Our Everwide UV resin started with adhesives, such as furniture, art-type glass, and plastic adhesives; we have suitable products and have good performance and long-term reliability. Although these products' sales are stable, the market will not increase explosively; coupled with the full of cheap low-end products, we need to look for a good topic in the next stage. Three years ago, a colleague gave me information about the FINETECH exhibition in Tokyo, Japan; because it was related to the plastic film or touch screen industry, I did not hesitate to go to the exhibition. Several colleagues have visited this exhibition every year for three consecutive years: looking for new raw materials and looking for new topics with potential. Through these efforts, our turnover in the IMD (in-membrane decoration) industry has grown significantly, and the related applications of PET plastic film hard coat resin, anti-fingerprint, anti-blue light, anti-glare film, etc. have also made breakthroughs. These new applications are born because we have a new vision and a new direction. Last year, my colleague said you can go to Japan to participate in the exhibition. I thought it was a joke, but I didn't expect it to come true. We overcame psychological barriers and language barriers and obtained assistance from related manufacturers; six colleagues came to Japan to participate in the exhibition together. The themes of our joint exhibition with Hsu Kuang Foil Technology Co. this year are OCA optical film, anti-glare, anti-blue paint, UV-type hydrolyzed glue in the glass thinning process, etc. Many raw material suppliers come to visit us, many customers ask technical questions, and we have also discovered many deficiencies. Although the process was full of tension, I also learned a lot. Seniors from the Taiwan exhibitor group told us: It takes at least three years to show up in Japan before people think that we are playing for real. It really makes sense to say that this year's colleagues at the exhibition unanimously agreed: I will come next year! We must learn from the spirit of Gundam and keep working hard.

─ Author: Miss Miao-Ling, Lin


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