Everwide Newsletter No.323
Experiment report § Research on flame retardancy and smoke suppression
Although "flame" has brought about significant changes in human behavior, its harm cannot be ignored. Nowadays, plastic materials are widely used. Traditionally, flame retardants are often added to the formulations to make the materials flame-retardant. However, for glass fiber cloth, if you want to use resin to change its physical properties and want to be flame-retardant, It is more difficult to make by traditional methods. Recently, a Japanese company has developed a resin that can improve the softness of glass fiber cloth and has a flame retardant effect. After being treated in a special way, it can pass UL94 V-0 (Figure 1). Even if the resin is milky white in appearance, the processed glass fiber cloth will not affect the appearance (Figure 2). In addition to flame retardancy, plastic materials will produce "toxic smoke" after burning (Figure 3). Internationally, ISO 5659 and ASTM E662 standards have been established. For the CO, CO2, HCN, HF, HBr, SO2 smoke produced by the combustion of non-metallic materials, the smoke concentration is tested with the NBS smoke tester. Recently, we are committed to the research on the suppression of toxic smoke. After the initial test, it can pass ISO UL94 V-0 and will not produce a lot of smoke (Figure 4, 5). Currently, we are still conducting related experiments.
─ Author: Mr. Zou YirongAbout Yongkuan § The raw material area is organized and rectified
Our products must be adjusted according to customer needs, so there are more than two thousand kinds of raw materials for mass products. It is not easy for such a large quantity to be neat and orderly, and sometimes it will become messy (Figure 1). We clearly mark the number of the raw material area at the entrance according to the location, so that the reclaimer can find the raw material smoothly in five minutes and improve work efficiency (Figure 2). In order to prevent the raw materials from being contaminated by impurities after use that affect their quality, or leak and pollute the environment, the opened bags of raw materials are clamped with clips or stored in an anti-fouling box. Having said that, the improvement activity itself is not difficult, but how to maintain the results is difficult. The factory has colleagues on duty every day to check the preservation of the raw materials in order to maintain the good improvement results (Figure 3).
Knowledge exchange § Two types of hardeners for epoxy resin: 1. Amines strong>
The hardeners of epoxy resins are the most common types of amines and acid anhydrides. Amines include basic polyamines, addenda reacted by polyamines and resins, polyamides reacted with vegetable oleic acid, modified amines reacted with phenol and formaldehyde in Mannish, and products obtained by various modification methods... Wait. As long as the use of primary amine or secondary amine to bridge the epoxy resin is an amine hardener. Amine hardeners have a low reaction temperature, and many can be hardened at room temperature, and they have a unique smell of ammonia. Adhesives, floor paints, low-quality infusion materials, composite materials, etc., may all use amine hardeners. Most amine hardeners are made of fatty amines, and some aromatic amines are slowly fading out of the market due to toxicity.
Bi-weekly strike § "Bee" rich life
Busy bees, party dogs, delicious vegetables, plump chickens and ducks, sweet fruits... etc. My home is full of different forms of life, which makes my life full of vitality. After my father retired from police work for more than 30 years, he proceeded with the next 30-year plan. He tried the "fish and vegetable symbiosis" system, but failed. He thought about "selling snacks", but after many researches and developments. When he reached his ideal, he finally decided to make coffee for his riders on County Road 139 in Changhua every Saturday; after searching and searching, he finally entered the beekeeping industry. There are many things to learn in beekeeping, such as: understanding the habits of bees, feeding tools, source of bee colonies, stabilizing bee colonies, feeding, harvesting, disease prevention, etc....Everything must be learned slowly, after years of hard work and accumulated experience At present, we have seven or eighty hives. Spring is a good time to pick nectar. It is really disturbing to check and accept the painstaking moments of the past year! But no matter how much the output is, my dad's persistence in not giving up is enough to make me admire. Especially after I have experienced "One Day Beekeeper", I have a deeper understanding that it is really not easy at all. "Who knows that everything is hard in the plate." Every drop of the yellow honey is hard to come by. Let us Support Taiwan's local agriculture together!
─ Author: Miss Qiu Manyun