乐泰4161快干胶 包装规格:20g瓶装 主要粘贴材料:金属,塑料,橡胶 颜色:无色透明 类型:乙基 粘度:1150/2000 固化速度:40秒/24小时 剪切速度:18/26 相对密度:1.05PRODUCT DESCRIPTION
LOCTITE® Product 4161 is a high viscosity, ethyl
cyanoacrylate adhesive. It is specifically formulated for general
purpose bonding.
TYPICAL APPLICATIONS
Bonding of a wide range of metal, plastic or elastomeric
materials. Loctite 4161 has USP Class VI Certification.
Suitable for use in assembly of disposable medical devices.
PROPERTIES OF UNCURED MATERIAL
Typical
Value Range
Chemical Type Ethyl Cyanoacrylate
Appearance Colourless
Specific Gravity @ 25°C 1.05
Viscosity @ 25°C, mPa.s (cP)
Brookfield LVF
Spindle 2-6 rpm 1,500 1,100 to 1,900
Flash Point (COC), °C >80
TYPICAL CURING PERFORMANCE
Under normal conditions, the surface moisture initiates the
hardening process. Although functional strength is developed
in a relatively short time, curing continues for at least 24
hours before full chemical/solvent resistance is developed.Cure speed vs. substrate
The rate of cure will depend on substrate used. The table
below shows the fixture time achieved on different materials at
22°C , 50% relative humidity. This is defined as the time to
develop a shear strength of 0.1 N/mm2 (14.5 psi) tested on
specimens according to ASTM D1002.
Substrate Fixture Time, seconds
Steel (degreased) 20 to 50
Aluminium 10 to 30
Zinc dichromate 40 to 100
Neoprene <5
Nitrile rubber <5
ABS 15 to 40
PVC 20 to 50
Polycarbonate 30 to 70
Phenolic materials 10 to 40
Cure speed vs. bond gap
The rate of cure will depend on the bondline gap. High cure
speed is favoured by thin bond lines. Increasing the bond gap
will slow down the rate of cure.
Cure speed vs. activator
Where cure speed is unacceptably long due to large gaps or
low relative humidity applying activator to the surface will
improve cure speed. However , this can reduce the ultimate
strength of the bond, therefore testing is recommended to
confirm effect.TYPICAL PROPERTIES OF CURED MATERIAL
Physical Properties
Coefficient of thermal expansion, ASTM D696, K-1 100 x 10-6
Coefficient of thermal conductivity, ASTM C177, W.m-1K-1 0.1
Glass transition temperature, ASTM E228, °C 165
Electrical Properties
Constant Loss
Dielectric constant & loss, 25°C, ASTM D150,
measured at 100Hz 2.65 <0.02
1kHz 2.75 <0.02
10 kHz 2.75 <0.02
Volume resistivity, ASTM D257 , W.cm: 1 x 1016
Surface resistivity , ASTM D257 , W: 1 x 1016
Dielectric strength, ASTM D149 , kV/mm 25
PERFORMANCE OF CURED MATERIAL
(After 24 hr at 22°C) Typical
Value Range
Shear Strength, ASTM D1002, DIN 53283
Grit Blasted Steel, N/mm² 22 18 to 26
(psi) (3200) (2600 to 3800)
Etched Aluminium, N/mm² 15 12 to 19
(psi) (2200) (1600 to 2800)
Zinc dichromate, N/mm² 10 6 to 13
(psi) (1450) (870 to 2000)
ABS, N/mm² 13 6 to 20
(psi) (1890) (870 to 2900)
PVC, N/mm² 13 6 to 20
(psi) (1890) (870 to 2900)
Polycarbonate, N/mm² 12 5 to 20
(psi) (1740) (725 to 2900)
Phenolic, N/mm² 10 5 to 15
(psi) (1450) (725 to 2900)
Neoprene rubber, N/mm² 10 5 to 15
(psi) (1450) (725 to 2200)
Nitrile rubber, N/mm² 10 5 to 15
(psi) (1450) (725 to 2200)
Tensile Strength, ASTM D2095, DIN 53288
Grit Blasted Steel, N/mm² 18.5 12 to 25
(psi) (2680) (1740 to 3630)
Buna N rubber, N/mm² 10 5 to 15
(psi) (1450) (730 to 2200)
Peel Strength, ASTM D1876, DIN 53282,
N/mm² <0.5Chemical / Solvent Resistance