Experiment § Flame-resistant microscopic world
With the rise of environmental protection and green chemistry, halogen-free flame retardants are gradually being valued. As far as the phosphorus-containing flame retardant is concerned, its main reaction mechanism is that the phosphate ester decomposes phosphoric acid when heated, and then the phosphoric acid reacts with alcohols to dehydrate and carbonize the alcohols and form a carbon layer on the surface of the material, which can be matched with foaming materials. , when heated and form a carbon layer to block oxygen to achieve flame resistance. (Refer to the figure on the left of the reaction formula) From a microscopic point of view, some free radicals of hydrogen and hydrogen, and oxygen will be generated in the flame area during combustion. As the concentration of free radicals increases, the degree of flame resistance decreases. Therefore, to reduce the concentration of these free radicals, some free radical inhibitors can be added to reduce the concentration of free radicals. But how to accelerate the formation of the carbon layer more effectively is a place to be developed in the future.
─Author: Assistant R&D Engineer Mrs. Rong-Xin, Lin of Everwide Chemical
Character close-up § Worker bee unit - business department
This is the agile army of worker bees and the center that provides services to dealers. Although there are only six staff members and they are located in Douliu and Zhongli, in fact, the business capability of Everwide Chemical is the combination of the R&D army and the business team. The business department cooperates with the R&D department to work together, and the R&D supervisor is the first and this is a scene that can be seen at any time. Strong R&D strength is the most powerful business weapon. We can often hear the voice of our customers here. "Come quickly! I'm very anxious here, come and help me see what to add to make the glue stick! ' At the same time, I could also hear the voice that was ready to be dispatched at any time. "Old friend, the client said that he is in urgent need of help, book a flight ticket to the mainland tomorrow morning! 』 There is also the voice of coordinating in the face of emergencies. "The customer has an urgent order, please help me ship it quickly, the production line is waiting for production! ', 'Please help to adjust the sample, I'm in a hurry to get it. 』, 『Please help to do a test, the customer can't wait to verify. 』Any other questions? Feel free to give me a call if you have one!
─Author: Business Manager Mrs. Wen-Chao, Shi of Everwide Chemical
Knowledge § Do toughened epoxy resins affect Tg?
Before we proceed, it must be confirmed that the processing temperature is greater than the Tg to avoid the effects of the incomplete reaction. If a plasticizer compatible with the resin is used when toughening the epoxy resin, the Tg of the resin after curing will decrease. If a toughening agent with poor compatibility with the resin is used, when the Tg of the toughening agent is smaller than that of the epoxy resin, the effect on the resin is small when the addition amount is small, and the Tg of the resin will also decrease when the addition amount is large. For example, liquid rubber is a typical example. If epoxy resins are toughened with thermoplastics, the cured Tg of the resin may be between the Tg of the original resin and the Tg of the thermoplastic.
Living § My Gambling Experience
A long time ago, I had the opportunity to travel to Germany. At that time, the currency of Germany was the mark, and I remember the exchange rate was about 1:20. One night in Germany, a friend of mine said that he was going to a casino, so of course, we had to go together. I remember that there are Russian roulette and blackjack in the casino. For the former, I think the probability of winning is very low, and I can't understand the meaning of those people's bets, so I have to go to the blackjack table to see. For the same blackjack table, the minimum bet amount is different. I circled around and found that the cheapest one also costs 25 marks, which is 500 yuan in Taiwan dollars! Really scary. But I can't be so boring watching others play all night, so I bite the bullet and "arrange flowers". "Flower arrangement" means that instead of sitting at the table, I stand behind them and follow the gamblers to bet their chips. Of course, whether you win or lose is played by someone else, you don't need to be busy counting points or speaking English to the biggest investor. A bet of 25 yuan may have two results: if you win, it becomes 50 yuan, and if you lose, it becomes 0 yuan. The strategy I choose is to only bet 25 yuan each time. Even if I win and change to 50 yuan, I will collect the extra money and only bet 25 yuan next time. My thinking is that the odds of winning twice in a row will be low, and winning three in a row is even lower. So the gambler is likely to change from 25 yuan to 50 yuan, but it will become more and more difficult to win again to 100 yuan, or even 200 yuan to win again. Moreover, as long as this kind of gambling method loses once, all the previous benefits will be zeroed, which often makes the gambler feel a great sense of loss, and the more and more gambling, the more unable to extricate themselves. The luck at that time was really good. The one I participated in won more and lost less, and everyone was very happy. The biggest investor who issued the license changed several people but still failed to reverse this momentum. So in the end, when I left the casino, the mark on my body turned out to be almost 100 yuan more. But to be honest, this method of gambling is not exciting at all, because you can't make a lot of money, it's just killing time. You have the opportunity to try your luck, but don't take it seriously.
─Author: Dr. Ye-Xu Li Everwide Chemical
