PCB新聞 - 電路板電鍍預浸料質量檢測方法

電路板電鍍預浸料質量檢測方法

預浸漬資料是一種由樹脂和載體組成的片材. 樹脂處於B級, 在溫度和壓力的作用下, 它具有流動性，能够快速固化並完成粘合過程, 並與載體一起形成絕緣層. 通常稱為預浸料或粘合膜. 為了確保多層膜的高可靠性和質量穩定性 印刷電路板, the quality of the semi-solid film must be tested (trial lamination method). 的特點 電路板 電鍍預浸料包括層壓前的特性和層壓後的特性. 層壓前的特性主要指：樹脂含量%, 流動性%, volatile content% and gel time (S). 層壓後的特性指：電力特性, 熱衝擊效能和易燃性. 出於這個原因, 為了確保多層膜的高可靠性 印刷電路板 以及層壓工藝參數的穩定性, 檢測電鍍預浸料的效能是非常重要的 電路板 層壓前.
1 Determination of resin content (%) of 電路板:
(1) Preparation of test piece: According to the fiber direction of the 電路板 電鍍預浸料: cut into 100*100 (mm) small test pieces at a 4.5° angle;
(2.) Weighing: Weigh Wl (grams) using a balance with an accuracy of 0.001 grams;
(3.) Heating: heating and burning at a temperature of 566.14°C持續60分鐘, and then weighing W2 (g) after cooling;
(4) Calculation: W1-W2 resin content (%)=(W1-W2)/W1*1002.
2. 量測 電路板 resin flow rate (%):
(1) Test piece production: According to the fiber direction of the 電路板 電鍍預浸料, cut into 100*100 (mm) pieces of about 20 g test pieces at a 45° angle;
(2) Weighing: Use a balance with an accuracy of 0.001 grams to accurately weigh W1 (grams);
(3) Heating and pressing: the temperature of the 加熱板 將壓床的溫度調節到171±3攝氏度, 當試件放置在 加熱板, 壓力為14±2Kg/cm2或以上, 加熱並按壓5分鐘, the glue is cut off and combined Weigh W2 (g);
(4) Calculation: Resin flow rate (%)=(W1-W2)/W1*1003.

3. 量測 電路板 gel time:
(1) Test piece production: According to the fiber direction of the 電路板 electroplating prepreg, cut into 50*50 (mm) pieces (each piece about 15 grams) at an angle of 45°;
(2) Heating and pressing: adjust the temperature of the 加熱板 至171±3°C，壓力至35Kg/cm2 for 15 seconds;
(3) Measurement: The test piece is the result of the measurement from the time the pressure starts to the curing time.
4. 揮發物含量的測定 電路板:
(1) Test piece production: According to the direction of ////// 電路板 電鍍預浸料纖維, cut into 100*100 (mm) 1 piece at a 45° angle;
(2) Weighing: Weigh W1 (grams) using a balance with an accuracy of 0.001 grams;
(3) Heating: Use an air circulating constant temperature bath, 在163±3°C溫度下加熱15分鐘, and then weigh W2 (grams) with a balance;
(4) Calculation: Volatile content (%)=(W1-W2)/W1*100.