参数资料
| 型号： | 4949-3/4"X36YD-SMPK |
| 厂商： | 3M |
| 文件页数： | 7/11页 |
| 文件大小： | 0K |
| 描述： | TAPE VHB ACRYLIC FOAM 3/4"X 36YD |
| 视频文件： | 3M VHB adhesive demonstration - Another Geek Moment |
| MSDS 材料安全数据表： | 49zz MSDS |
| 标准包装： | 3 |
| 系列： | VHB™ 4949 |
| 胶带类型： | 双涂层，双面 |
| 胶合剂： | 丙烯酸 |
| 背衬，载体： | 聚酯薄膜 |
| 厚度： | 0.045"（45 mils，1.143mm） |
| 厚度 - 胶合剂： | 0.043"（43 mils，1.092mm） |
| 厚度 - 背胶，载体，衬垫： | 0.0020"（2.0 mils，0.051mm） |
| 宽： | 0.75"（19.05mm）3/4" |
| 长度： | 108'（32.9m）36 码 |
| 颜色： | 黑 |
| 使用： | 通用 |
| 温度范围： | 200°F（93°C） |
| 包装： | 散装 |
| 其它名称： | 00021200646447 02120064644 4949-3/4"X36YD 4949-3/4"X36YD-ND 70006147634 |
3M ? VHB ? Tapes
Additional Typical Performance Characteristics
Note: The following technical information and data should be considered representative or typical only and should not
be used for specification purposes.
Aluminum, Galvanized steel, stainless
-35°C
90°C
steel, enameled steel, nickel coated
ABS, glass (with or without silane
Outgassing:
3M? VHB?
Tapes % TML %VCM
4930 0.77 0.01
4932 2.41 0.66
4945 1.24 0.01
TML - Total Mass Loss
VCM - Volatile Condensible Materials
WVR - Water Vapor Regained
%WVR
0.21
0.23
0.19
Dielectric Breakdown Strength
(ASTM D149)
3M? VHB?
Tapes (in volts/mil)
4941 360
4926 330
5952 455
5925 520
4950 460
4920 640
3M? VHB? Tapes
UL746C Listings - File MH 17478
Category QOQW2 Component - Polymeric Adhesive Systems, Electrical Equipment
3M? VHB? Tapes/ Temperature Rating
Product Families Substrates Minimum Maximum
4919F, 4926, 4936, Ceramic -35°C 110°C
4936F, 4941, 4941F,
4947F, 4956, 4956F,
4979F
NASA Reference Publication, “Outgassing Data
for Selecting Spacecraft Materials”, (11/18/2004)
Available online at http://outgassing.nasa.gov
4910
4611
630
330
coating) PVC, glass/epoxy, PBT,
polycarbonate, acrylic/polyurethane
paint, polyester paint
ABS
-35°C
75°C
Dielectric Constant
(ASTM D150)
Thermal Conductivity - K-value
4914, 4920, 4930, 4950
Aluminum, galvanized steel,
enameled steel, stainless steel,
-35°C
110°C
3M? VHB?
Tapes
Dielectric
Constant
Dissipation
Factor
3M? VHB?
Tapes
BTU in/
hr ft 2 °F
(w/mK)
ceramic, glass/epoxy
PBT, Acrylic
-35°C
90°C
4941 at 1 kHz
at 1 MHz
5952 at 1 kHz
at 1 MHz
4950 at 1 kHz
2.29
1.99
2.14
1.95
2.28
0.0245
0.0374
0.0065
0.0506
0.0227
4941
5952
4950/4945
4910
0.53
0.37
0.63
1.09
(0.08)
(0.05)
(0.09)
(0.16)
4945, 4946
ABS, Polycarbonate, Rigid PVC
Phenolic, aluminum, galvanized
steel, alkyd enamel
ABS, polycarbonate, polyimide,
stainless steel, acrylic/polyurethane
-35°C
-35°C
-35°C
75°C
110°C
90°C
at 1 MHz
1.99
0.0370
4611
0.77
(0.11)
paint, polyester paint
4910 at 1 kHz
at 1 MHz
4611 at 1 kHz
at 1 MHz
Resistivity
(ASTM D257)
3.21
2.68
2.80
2.43
0.0214
0.0595
0.0130
0.0564
R-Value = thickness
K-value
(When units of K-value are
BTU-in/hr ft 2 °F and thickness
is given in inches.)
5915, 5915P, 5925,
5925P, 5930, 5930P,
5952, 5952P 5962,
5962P
unplasticized PVC
Polycarbonate, Primer 94 coated
polycarbonate, aluminum, acrylic/
polyurethane paint, galvanized steel,
steel, polyester paint, epoxy/polyester
paint, epoxy paint, glass (with or
without silane coating), stainless
steel, enameled steel, glass epoxy,
-35°C
-35°C
75°C
90°C
3M? VHB?
Tapes
Volume Resistivity
(in ohm-cm)
Surface Resistance
(in ohms/square)
polybutylene terephthalate, Nylon ? ,
Noryl ? (PPE) polyphenenlene ether
4914
4941
5952
4950
4920
1.7 x 10 11
2.1 x 10 14
2.5 x 10 14
1.5 x 10 15
1.7 x 10 15
>10 16
2.7 x 10 14
>10 16
>10 16
>10 16
5915, 5925, 5930, 5952
5962
5952
4991
Rigid PVC, ABS
Acrylic
Acrylic
Cellulose Acetate Butyrate
Polycarbonate, aluminum, acrylic/
-35°C
-35°C
-35°C
-35°C
-35°C
75°C
90°C
80°C
90°C
90°C
4910
3.1 x 10 15
>10 16
polyurethane paint, polyester paint
4611
1.4 x 10 15
>10 16
4611, 4646, 4655
Stainless steel, aluminum, galvanized
-35°C
110°C
steel, glass, glass/epoxy, phenolic
Water Vapor Transmission Rate (WVTR)
(ASTM F1249) at 38°C/100% RH
Nylon, polycarbonate
ABS, rigid PVC
-35°C
-35°C
90°C
75°C
3M? VHB? Tapes
4905, 4910
Polycarbonate, aluminum,
-35°C
90°C
4950
4941
5952
14.0 g/(m 2 day)
25.6 g/(m 2 day)
37.1 g/(m 2 day)
acrylic/polyurethane paint
A current list can be found at www.ul.com (select certifications, search file MH17478)
Solvent and Fuel Resistance
100
100
Typical 3M? VHB? Tape Properties for Modeling
Thermal Coefficient
of Expansion
1 x 10 -4 in/in/°F
1.8 x 10 -4 mm/mm/°C
Shear Modulus (@25°C, 1 Hz)
4950 Family: 6 x 10 5 Pa
4941 Family: 3 x 10 5 Pa
(Shear Modulus is both temperature and frequency
dependent).
%
A
d
h
e
s
i
v
e
R
e
t
e
n
t
i
o
n
90
80
70
60
50
40
30
20
10
0
Water
Kerosene
Isopropyl Alcohol
Gasoline
MEK
90
80
70
60
50
40
30
20
10
0
Youngs Modulus: For VHB tapes the Youngs
Modulus will be about 3 times the Shear Modulus.
Poisson’s Ratio
0.49
Salt Water
Hydraulic Fluid
10W30 Motor Oil
Glycol Antifreeze
Test Method
? Tape between stainless steel and aluminum foil.
? 72 hours dwell at room temperature.
Jet Fuel
Burn Characteristics 3M? VHB? Tape 5958FR
Meets FAR 25.853 (a) 12 second vertical burn,
Appendix F, Part I (a)(ii).
Meets NBS Smoking Density (ASTM F814/E662).
Meets Toxicity (Draeger Tube ABD0031, AITM
3.0005)
? Solvent immersion for 72 hours.
? Test within 45 minutes after removing from solvent.
? 90° peel angle.
? 12 in./min. rate of peel.
? Peel adhesion compared to control.
Note: Continuous submersion in chemical solutions is not recommended. The above information is presented to show that
occasional chemical contact should not be detrimental to tape performance in most applications in ordinary use.
-7-
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