LA26胶带是美国ASTM作为P-99为D3359-08附着力测试替换产品,AmericanPermacelP-99 alternative
Tape Polyester/rope fiber laminate; offers bulk and stiffness;hand tears for tabbing,
holding & wrapping Intertape LA-26 Polyester/Rope-Fiber Laminate Tape combines the moisture,
chemical, abrasion and puncture resistance of polyester film with the machine direction
strength and dimensional stability of rope-fiber paper backing, this pressure sensitive
adhesive is designed for use in high temperature conditions. It is ideal for tabbing,
holding and wrapping, masking PCB gold fingers during wave solder and HAL operations. It can
also be used for ¨powder coat¨ masking. It is also currently being considered as a
replacement to Permacel P-99 for ASTM D3359-08 adhesion testing. Physical
CharacteristicsROLL SIZETensileAdhesionThicknessElongation1 in. x 60
yds.lb/inN/25mmoz/inN/25mmmilsmm% 25mm x 55m45.0197.060.016.76.00.152.0 百格测试步骤:? 用
刀口宽约10mm~12mm的百格刀在测试样本表面划10×10(100个) 的正方形小网格,以1mm~1.2mm为间隔,每
一条划线应深及油漆的底层;? 用毛刷将测试区域的碎片刷干净;? 用P-99胶带或等同效力的胶纸牢
牢粘住被测试的小网格,并用橡皮擦用力擦拭胶带以加大胶带与被测区域的接触面积及力度;? 用手抓
住胶带一端,在垂直方向(90°)迅速扯下胶纸,同一位置进行2次相同试验。结果判定: 手机客户要求
附着力≥4B为合格。实验等级:? ISO等级:0 =ASTM等级:5B (切口边缘完全光滑,格子边缘没有
任何剥落)? ISO等级:1 =ASTM等级:4B (在切口的相交处有小片剥落,划格区内实际破损≤5% )
? ISO等级:2 =ASTM等级:3B (切口的边缘和/或相交处有被剥落,其面积大于5%~15% )? ISO
等级:3 =ASTM等级:2B (沿切口边缘有部分剥落或整大片剥落,或部分格子被整片剥落。剥落的面积
超过15%~35% )? ISO等级:4 =ASTM等级:1B (切口边缘大片剥落/或者一些方格部分部分或全部
剥落,其面积大于划格区的35%~65% )? ISO等级:5 =ASTM等级:0B(在划线的边缘及交叉点处有
成片的油漆脱落,且脱落总面积大于65%)。 长期代理美国IPG测试胶带LA26。