The goal for this contract is the development of processes and techniques for molding thermally stable, fire retardant, low smoke emitting polymeric materials. Outlined in this presentation are: (1) the typical molding types; (2) a program schedule; (3) physical properties of molding types with the test methods to be used; (4) general properties of injection molding materials; and (5) preliminary materials selection

Silverman, B.

English

NASA Technical Reports Server

THERMOPLASTICS FOR AIRCRAFT INTERIORS
Bernard Silverman
Lockheed California Company
Burbank, California
125
https://ntrs.nasa.gov/search.jsp?R=19790003863 2020-03-22T00:51:26+00:00Z
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PROGRAM SCHEDULE
1978 1979
JAM
ANALYSIS
POTENTIAL MATERIALS
? V
FIRE HAZARD TESTING
AND EVALUATION
DEVELOPMENT OF PROCESSING
AND TECHNIQUES OF MOLDING
MOLDING OF PARTS
FEB28
FINAL REPORT
129
TABLE 4-1. PHYSICAL TECHNICAL PROPERTIES (TvPlC$f}_
PHYSICAL PROPERTY
Tensile Strength
psi min
Impact Strength
(notched Izod)
ft Ib/in of notch
Flexural Strength
psi-min
Elongation Z
Bin at break
Mod of Elasticity,
psi-min
Specific Gravity
max
Beat of Deflect
Temp F Bin.
@ 264 psi
Color Fastness
Fade-0-Met?er
Stress Cracking
Resistance
Solvent Teat
Oxygen Index (LOI)
Smoke Optical
Density (DMS) max
<6 minutes)
Thermal Stability
(TGA) min
Flammability
Screening Test
60 sec vertical
Test Method
Bondabie Lap
Shear psi min
180° Peel
TYPE OF MOLDING
THERMOFORMED
6000
3.0 Bin
8000
20
300.000
1.40
250°F
•
50 hr Bin
No visible
cracks
40
75
400 ,
5 »*c
extlngh. max
no drip
500
8 ppi
INJECTION
6000
3.0 Bia
8000
5
300.000
1.30
250°F
50 hr Bin
No visible
cracks
40
75
400
5 sec
extlngh.
max no
drip
500 .
8 ppi
COMPRESSION
8000
3.0 Bia
10,000
5
300.000
•x_
1.30
300°F
SO hr Bin
,
No visible
cracks
40
75
400
5 sec
extlngh.
max, no
drip
500
8 ppi
TEST METHOD
FED. STD.-406,
EXCEPT AS NOTED
1011 Speed C
1071
*
1031
1011 Speed C
1031
SOU
ASTM D648
Fed. Std. 191 5060
LAC C-22-1115 D
Method 4.1.1.1
ASTM D-2863
NBS Smoke Chamber
AMINEO COT #4-5800
Thermogravimetrle
Analysis
FAA 25.853*
Appendix F
1/2 in. overlap
1200>1400 psi/min.
2 In/Bin Jaw sep.
LOCKHEED
130
INDIVIDUAL
(TYPICAL)
PROPERTIES MATERIAL
cc
LU
z
LU
CJ
CHEMICAL NAME ,
TRADE NAME
VENDOR
FINISHED FORM
RAW MATERIAL COST, $/lb.
COLORS AVAILABLE,
PAINT SYSTEMS
ADHESIVE BONDING
AVAILABILITY
POLYCARBONATE
LEXAN
GENERAL ELECTRIC
INJECTION MOLDING
2.0
CLEAR, BLACK, COLORS ON ORDER
URETHANE + PRIMER
URETHANE
FULL PRODUCTION
O
°1SF 8
°- LU
O
DRYING REQUIREMENTS
CURE CYCLE
POST CURE CYCLE
ANNEALING
YES,4HRS AT100°C
INJECTION TEMP., MOLD TEMP.
NONE
NONE
co _i
> <
I O
a.
DENSITY. G/cc3, ($/m.3)
WATER ABSORPTION, % IN 24 HOURS
ROCKWELL HARDNESS
1.21
0.15
70 M,1/8 R
O
<
T.
O
LU
TENSILE STRENGTH, (psi) MPa
TENSILE MODULUS, (psi x 1Q5)
TENSILE ELONGATION, %
FLEXURAL STRENGTH, (psi) MPa
FLEXURAL MODULUS, (psi) MPa
COMPRESSIVE STRENGTH, (psi) MPa
COMPRESSIVE MODULUS, (psi) MPa
IZOD IMPACT, NOTCHED, ft-lb/in.
58.6 MPa (8500 psi)
(3.25)
.50
82.7 (12,000)
2070 (3.0 x 105)
(12,500)
87.2(3.5x105)
12.0
sc/>
cc LU
LU OC
X £
HEAT DEFLECTION, °F (264 psi) 182°C MPa
MAXIMUM SERVICE USE, (°F) °C
OXYGEN INDEX
FLAMMABILITY RESISTANCE
FAR 12 sec-IGNITION (60-sec IGNITION)
FLAME-OUT
GLOW TIME
BURN LENGTH cm
SMOKE IGNITION DS - 6 mm (DM)
TGA
TOXIC GAS EMISSIONS
(270° F)
(230° F)
35
GOOD
PASSES 12, & 60 sec
5
0
5 DRIPS (NO FLAME)
105
m
<
LU
O
>
CC
LU
CO
SOLVENT RESISTANCE
HUMIDITY STABILITY
STRESS CRACK RESISTANCE
CLEANABILITY
COMMON MAINTENANCE
COMMERCIAL CLEANERS WITH AMMONIA
TRICHLOROETHANE
ULTRA-VIOLET LIGHT RESISTANCE
ABRASION RESISTANCE
POOR
GOOD
GOOD
FAIR
FAIR
FAIR
POOR
GOOD 60 HRS
FAIR
O
vt
CO
OC
5
LU
OC
COST OF PROCESSING/lb MATERIAL EQUAL TO PRESENT TYPE
POLYCARBONATE
131
I N J E C T I O N M O L D I N G M A T E R I A L S
PROPERTIES
<i
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£^£
P LL
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i£
OL
in
o
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CHEMICAL NAME
TRADE NAME
VENDOR
FINISHED FORM
RAW MATERIAL COST
COLORS AVAILABLE
PAINT SYSTEMS
ADHESIVE BONDING
AVAILABILITY
DRYING REQUIREMENTS
CURE CYCLE INJECTION TEMP °c
POST CURE CYCLE °C
ANNEALING °C
DENSITY, g/cc3, (lb/in3)
WATER ABSORPTION,?. IN 24 HOURS
ROCKWELL HARDNESS
TENSILE STRENTH MPa (psi)
TENSILE ELONGATION %
FLEXURAL STRENGTH, MPa (psi)
FLEXURAL MODULUS, MPa (psi)
COMPRESSIVE STRENGTH, MPa (psi)
1ZOD IMPACT, NOTCHEN, f t- lb/in
HEAT DEFLECTION, °C 1820 KPa (264 psi)
MAXIMUM SERVICE USE, °C
OXYGEN INDEX
FLAMMABILITY RESISTANCE - ASTM F501-77
IAR 853-60 SEE VERTICAL TEST -
FLAME OUT
GLOW TIME
BURN LENGTH
SMOKE IGNITION D -6min (D )
TGA °C s m
TOXIC GAS EMISSIONS
SOLVENT RESISTANCE
HUMIDITY STABILITY
STRESS CRACK RESISTANCE
CLEANABILITY
Common Maintenance
Commercial Cleaners With Annomia
Tricacorae thane
Ultra Violet Light Resistance
ABRASION RESISTANCE
COST OF PROCESSING
POLYCARBONATE
Lexan 940
General Electric
Small Rellets
$2 50
Clear & All Colors
PES-Urethane
PES-Urethane
In Production
4 Hrs @ 100°C
300°C-R.T.
None
None
1 21
0.15
70 M
58.6 (8500)
50
82.7(12,000)
2070(3 0x10 )
87 2(12,500)
12
132°C(270°F)
110°C(230°F)
j5
( 030) Passes
5
0
8cm
( 060) 110
Very Low
Poor
Good
Good
Fair
Fair
Poor
Good
Fair
Equal To Present
Type Polycarbonate
May Be Substituted
Directly In System
A Impact Resistance
Greatly Improved
POLYETKERSULFONE
200P
ICI (USA)
Small Pellets
$8.00
Transp. & All Colors
Possible-Devel
7-Devel
Limited Production
4 Hrs. 150°C
* 350°C I.T.-170°C M.T.
None
Required For Larger Pants
1 37
0.43
88 M
82 7 (12,000)
8
113(16,000).
2415(3 5x10 )
82 7(12,000)
1.6
203°C
175°C
37
Passes ( 030)
3
0
3cm
20
440°C
Fair
Poor
Good
Fair
Good
Fair
Fair
Good
7
*
Tmpact Strength
Very Low
POI YPHENYLSULFONE
Radel
Union Carbide
Small Pllets
* $15 00
All Colors
i
9
Limited Production
3 Hrs 150°C
375°C I T.-165°C M.T.
\'r,ne
None
1.27
71 7 (10,400)
60
85 5 (12,400)
2280 (3.3x10 )
12.0
240°C (400°F)
290°C
39
.039) Passes
0
0
1.5 cm
5
500°t
Minimal
Good
Excellent
Good
Good
Good
Good
Good
9
*fiay lie Prohibitive
But Offers Other
Good Features With
Rpspect to Fire
Safety
Does Not Drip
132
E-JOO 3J
Mont, into
Small Pellets
$8 0(1
One Light Color
7
Deve lopmen tal
None
350°L 1 T -100°( M T.
None
None
PHI YAM! PF- JMIPE
Tor Ion 4203
Amoco Chemical
Small Pellets
$4 00
Dark Brown
I poxy
Limited Production
S Hrs at 120°C
360°C I.T.-260°C M.T.
* 96 Hrs(130*e To 2&0°C)
i
1 19
0 15
(10,000)
66
(2 9xi05)
3 0
172°C
160°C
34
( 030) Passes
80
Minimal
Fair
1 40
0 28
'(27.000)
12
(30,000)
(2 5x10 )
(40,000)
2.5
274°C
250°C
41
( 030) Passes
0
0
1 2 cm
10
450°C
Minimal
Excellent
Good i Good
•?
Good
Good
Fair
9
Good
Depends on Paints
11
"
"
^Processing Costs
For Stress Relief
Would Be Prohibitive
Pm.YVTNVI TnjNF f]|inPTrip
Kynar
Pennwalt
Small Pellets
Black
No
No
Limited Production
None
200°C- R.T
None
None
180
109
(6000)
51-200
(2 OxlO5)
(8600)
5
82°C(180°F)
70°C
45
Passes
0
POLYIMIDE ALLOY (PPS)
Tribolon XT-1211
Fluorocarbon
Small Pellets
$12.50
Dark Brown
' Possible
' Possible
Limit ^mall Parts
2 Hrs 130°C
370°C I.T.-180°C M.T.
12 Hrs 20°C To 26u°C
1 45
(7000)
8
(10,5001
(6 1x10 )
(12,500)
* 1.1 To 2.5
250°C
225°C
Passes
0
0 0
2 cm ' 1 cm
350°C
High
Good
Good
Good
Depends on Paints
11
"
"
High Material &
Processing Costs
*Prohibitive
Weight Cost
* Is not Bondable
3
450°C
Minimal
Excellent
Good
Good
Depends On Paint
"
„
"
High Malerial 4
Processing Costs
*Low Impact Strength
*Migher Density
Sulfone
Asteel
'/ 360
*Too Costly
To Be Considered
133
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134
SESSION B: FIRE TOXICOLOGY
Session Chairman: Henry A. Leon
Ames Research Center
135


Thermoplastics for aircraft interiors

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