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Everwide Newsletter No.174


Experiment § Anti-blue light coating

At present, there are a large number of products related to anti-blue light on the market, so the development of Everwide Chemical in this application is certainly not absent. Blue light is different from ultraviolet light because blue light is an electromagnetic wave with a wavelength between 380nm and 530nm, which is part of visible light. Blue light has a wavelength close to ultraviolet light, short wavelength, and strong energy, but long-term stimulation of blue light can easily cause eye fatigue, macular degeneration, or other eye diseases. Especially the current users of 3C products, if they stare at the screen for a long time, their eyes are likely to be hurt, so anti-blue light products are born. At present, we have launched UV-type coatings with an anti-blue light effect for the consumer market. This paint can remove the blue light from the white light, so it looks like a complementary color of yellow (a mixture of red and green). Because of the interrelationship of the three primary colors of light, all products that filter blue light will definitely look yellow. The stronger the blue light filter effect, the more obvious the yellow color. The picture above is the ultraviolet-visible light absorption spectrum of our anti-blue paint. From this spectrum, we can find that the blue light penetration rate is only about 40%, which can greatly reduce the intensity of blue light and provide the best protection for the eyes. Next time you are shopping for anti-blue light products, don't forget that this is the application of Everwide inside again!

─Author: Mr. Wei-Lin, Zhang

 

Activity § Summer work-study students go to work!

Every summer, many students from National Formosa University come to work in the company. For students, in addition to the income from work, they can also experience the workplace in advance. For the colleagues in the company, they have many more powerful helpers, which can make it a little easier. We do not regard working-study students as cheap labor. On the contrary, we care about our classmates' experience at work. In contrast, work-study students have also brought us a positive impact, including reviewing our own work attitude, guidance methods, and job evaluation. Work-study students and we "learn from each other and grow" and provided each other with valuable internships.

 

Knowledge § In addition to living polymerization, what are the advantages and disadvantages of light-curing epoxy resin?

Advantages:

  1. The curing shrinkage rate of the epoxy resin system light-curing adhesive is lower than that of the acrylic system, and its heat resistance, chemical resistance, and moisture resistance are higher than that of the acrylic system.

  2. Cationic polymerization is not interfered with by oxygen in the air, and the cured surface has good dryness and no stickiness occurs.

  3. The epoxy resin adhesive does not contain volatile substances, nor does it contain ingredients that irritate the skin, so it is safe and sanitary.

Disadvantages:

  1. The reaction speed of cationic polymerization is slower than that of free radical systems, which is not suitable for some products with fast processing speed.

  2. The reaction depth of the epoxy resin system is shallower than that of the acrylic system, and products with larger thickness cannot be molded.

  3. Compared with free radical photoinitiators, cationic initiators have a lower absorption wavelength and a narrower absorption range.

  4. Compared with the acrylic system, there are fewer types of epoxy resin monomers and oligomers, which affects the variability of the formulation.

 

Living § Hope Angel Enlightenment Society

By chance, I visited the "Hope Angel Enlightenment Society" in Nantou County. The job of the Enlightenment Society is to help children with developmental delays and learning disabilities, to give them individual training in language, writing, and reading, and to cooperate with outdoor teaching and character training so that they can learn and grow happily. The Enlightenment Society is an old 3rd-floor building, with a small signboard outside. I was so embarrassed to see the chairman waiting at the door before the car stopped. After I briefly explained my intention, Chairman Lin told me the reason for the founding of the Enlightenment Society, the current operation situation, the difficulties faced, and future plans.

I wandered from the first floor to the third floor and learned about the activities of the Enlightenment Society. I was deeply moved: without applying for funding from the government, they spent two years of hardship without food, so this was moved 75 members and they donate 500 yuan a month. They now spend 37,500 yuan a month to let children who are slow to learn to receive enlightenment courses for free. We have also received additional sponsorship funds for volunteers to lead children to visit the Pingtung Museum of Marine Biology and Aquarium because these are all important things for children! In addition, the Enlightenment Society also has many volunteer training, parent-child seminars, and teaching seminars, which opened my eyes. While talking with the chairman, Miss Li helped us take pictures and record. I asked her casually: Why do you want to be a volunteer? She told me: My neighbor was a girl of the same age. I wanted to talk to her but couldn't communicate and this was her motivation to help the slow children. It is her happiest thing to see that they are learning to study, removing obstacles, and finally graduating from society through evaluation.

When I was leaving the school, the two teachers personally reminded me to drive carefully and promised to send me photos but I waited for one night and didn't receive it. On Sunday afternoon, I asked Chairman Lin via a text message, and then the chairman wrote back in the evening: Teacher Li who took the picture passed away in a car accident at noon today. At the moment, my mind was blank, and I couldn't help but sigh to God about the accidents in life. The above is my real situation. I hope that the persevering Enlightenment Society can get support, and I also call on everyone to participate in charity activities. I believe that one day we will live in the happiness that charity brings us.

​─Author: Mr. Zhu-Fang, Huang





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