Yongkuan News
Yongkuan Chemical Newsletter-Issue 318
Release Date: 2020-02-17

experimental report § Pressure-sensitive adhesive testing machine

膠帶依功能性分類對膠性的需求而有所不同。永寬開發UV固化型感壓膠(無溶劑PSA)已有一段時間,客戶對於膠體物性的要求也日趨嚴謹。為了運用不同的驗證方式來確保產品的可靠性,我們新購入四台感壓膠物性的測試設備。圖1-3分別是高溫與室溫膠帶保持力試驗機。膠帶製品使用在室溫和高溫場所時,保持力是一項重要的指標,保持力不足的膠材可能短時間就會脫落造成毀損(圖4)。圖5,6是初黏試驗機:標籤和貼紙需有易黏好貼的特性,這時可藉由初黏試驗機檢測膠帶的初始黏度,確認黏性在客戶允許範圍內。圖7是電動輾壓滾輪機:膠帶會因為使用者所施加的不同壓力而影響黏著強度,為了控制變因所以使用機台做固定次數及重量的施壓。目前開發的案子中,塗膠厚度150um,荷重五公斤可超過2~3個月不脫落。歡迎有興趣的您與我們接洽!
─ Author: Mr. Pan Dongqi
About Yongkuan § Annual participation plan

展覽除了提高知名度外,也能吸取新知,衝擊出不同的火花。今年參展計劃:4/15~4/18台北國際車用電子展、6/24~6/27泰國國際電子生產設備暨為電子展、9/9~9/11中國國際光電博覽會、9/9~9/11越南國際電子製造關連展。 除了參展以外,近幾年永寬產品陸續銷售至印尼、新加坡、泰國和越南...等國家。客戶希望更瞭解我們的產品,希望我們提供更好的服務,語言問題和文化差異是必然的挑戰。今年將會有不同國籍的同仁陸續加入永寬,為我們注入一股新的力量。未來的技術文件,產品資料…等,除了英文版以外,希望能夠更加在地化。下次展覽,歡迎您來攤位看看我們,看我們是不是又有一點點的進步。

Knowledge exchange § What is the curing mechanism of the added silicone?

The curing principle of addition-type silicone is that the vinyl group on the Si atom and the siloxane containing Si-H functional group, under the catalysis of the transition metal compound (for example: platinum catalyst), undergo addition reaction to form new Si-C key. This reaction cross-links the linear structure into a network structure. Compared with shrink-type silicone rubber, the addition-type silicone reaction has no by-products, the reaction speed is not related to environmental factors, and has a high conversion rate. Therefore, many applications use the addition-type silicone rubber. Addition silicone has some disadvantages: it has poor adhesion ability. Commercial products often add non-reactive silicone oil, which may cause catalyst poisoning... etc., still need to be properly evaluated before application.

Biweekly strike § Friends of Xitou

I love the sea view more than the mountain view. In addition to the vast heart that the sea brings to me, the waggling sound of the waves lingering in my ears can touch my hearty emotions, and my heart will begin to play a surging symphony. At first, I didn't like to climb mountains, because I had old men's knees and stupid ankles, so I crooked my feet and hurt my hips while climbing. But in order to accompany Mr. training physical strength, I decided to visit the mountain forest again. In the bird watching trail of Forest Creek, I had a beautiful encounter! At the beginning, I noticed that on the stone steps a few feet away from me, there was a yellow-chest bird (servan) jumping, and I said to him jokingly, "Are you leading me to the top?" I was surprised to see them, and they were not afraid of me at all! Later, I decided to visit Xitou regularly because of the experience of passing by an elderly couple on the "Ginkgo Trail". They are fully equipped and at the same pace. I feel that in addition to their similar interests, they also explain the beauty of mutual companionship! I immediately picked up my phone to capture the picture, and this scene also became the trail I visited every season. The mountains bring me the power of peace and peace. The fallen leaves and new shoots, flowers, and flowers in the mountain forest make me realize that the journey of life is also high and low, in order to interweave a rich self. As I climbed the mountain, I watched people's faces and listened to the content of the words, and learned to check my status. When life is like living for others, do you try to start paying attention to yourself and live for yourself!
─ Author: Miss Zhangjia Fang