Vibration Damping Properties

Since SUMIKASUPER LCP has high rigidity and high vibration damping, it has excellent vibration damping compared to other resins. The relationship between the loss factor and the flexural modulus is shown in Figure 3-7-1, which indicates a high loss factor while maintaining a high the elastic modulus.

Figure 3-7-3 Resonance Properties of SUMIKASUPER LCP

Table 3-7-1 Comparison between SUMIKASUPER LCP and Other Resins

	Resonance frequency (Hz)	Loss factor
LCP-GF40%	1,680	0.0491
PES-GF30%	1,100	0.0092
PPS-GF40%	1,340	0.0093
Iron material	1,340	0.0095

Thermal Conductivity

The thermal conductivity of SUMIKASUPER LCP changes according to the orientation of the resin, and high thermal conductivity is seen in the flow direction. Also, since the thermal conductivity of fillers such as glass fiber is higher compared to that of LCP resin, the thermal conductivity differs according to the type and content of the filler.

Figure 3-7-4 Thermal Conductivity of SUMIKASUPER LCP

Gas Barrier Properties

Gas barrier properties are the amount of gas that permeates 1 m2 in 24 hours and is referred to as the permeability rate. The slower the permeability rate, the smaller the permeation amount and the better the barrier properties. Since gas barrier properties are inversely proportional to the thickness of the test piece, the thickness in the figure below is set to a specific value of 25μm (cc, 25μ/m2, 24hr, 1atm).
SUMIKASUPER LCP has a low permeability rate for both water vapor permeability and oxygen permeability, and has excellent gas barrier properties.

Figure 3-7-5 Gas Barrier Properties of SUMIKASUPER LCP

CAE Analysis

CAE (computer-aided engineering) analysis can be used to evaluate (simulate) product design issues using a computer. The table below shows some of the technical data required for CAE. The following data was measured for CAE analysis. Please contact us to obtain the technical data required for CAE analysis.

Table 3-7-2 CAE Characteristics of SUMIKASUPER LCP 1

	Test method	Unit	E5204L	E5006L	E4008	E6006L	E6008
Specific heat	ASTM E1269	J/(kg·K)	1,067	1,068	812	839	812
Thermal conductivity	ISO 22007-2	W/(m·K)	0.37	0.44	0.51	0.50	0.51
Melt density	PVT method	g/cm3	1.10	1.35	1.54	1.42	1.54
Solid density	PVT method	g/cm3	1.23	1.58	1.70	1.59	1.70
Young's modulus(MD)	ASTM D638	MPa	8,000	-	13,000	14,000	13,000
Young's modulus(TD)	ASTM D638	MPa	3,000	-	3,600	3,800	3,600
Poisson's ratio(MD)	ASTM D638	-	0.43	-	0.46	0.48	0.46
Poisson's ratio(TD)	ASTM D638	-	0.86	-	0.88	0.87	0.88

	Test method	Unit	E6807T	E6007LHF	E6808LHF	E6810LHF
Specific heat	ASTM E1269	J/(kg·K)	1,012	967	1,009	974
Thermal conductivity	ISO 22007-2	W/(m·K)	0.64	0.43	0.43	0.70
Melt density	PVT method	g/cm3	1.52	1.50	1.53	1.65
Solid density	PVT method	g/cm3	1.68	1.68	1.73	1.84
Young's modulus(MD)	ASTM D638	MPa	8,700	14,000	11,000	9,900
Young's modulus(TD)	ASTM D638	MPa	3,900	5,100	4,800	5,600
Poisson's ratio(MD)	ASTM D638	-	0.25	0.39	0.34	0.28
Poisson's ratio(TD)	ASTM D638	-	0.82	0.72	0.71	0.73

Table 3-7-3 CAE Characteristics of SUMIKASUPER LCP 2

	Test method	Unit	E6808UHF	SV6808THF	SV6808GHF	SZ6505HF	SZ6506HF
Specific heat	ASTM E1269	J/(kg·K)	1,203	920	890	1,121	1,110
Thermal conductivity	ISO 22007-2	W/(m·K)	0.33	0.56	0.66	0.48	0.47
Melt density	PVT method	g/cm3	1.54	1.57	1.53	1.42	1.44
Solid density	PVT method	g/cm3	1.73	1.73	1.69	1.58	1.63
Young's modulus(MD)	ASTM D638	MPa	8,000	8,000	10,000	11,200	11,000
Young's modulus(TD)	ASTM D638	MPa	4,100	4,600	4,800	5,900	6,300
Poisson's ratio(MD)	ASTM D638	-	0.25	0.28	0.32	0.25	0.12
Poisson's ratio(TD)	ASTM D638	-	0.80	0.74	0.91	0.80	0.80

	Test method	Unit	SR2506	SR2507	SR1009L	SR1205L
Specific heat	ASTM E1269	J/(kg·K)	1,042	979	897	856
Thermal conductivity	ISO 22007-2	W/(m·K)	0.48	0.55	0.29	0.38
Melt density	PVT method	g/cm3	1.46	1.54	1.60	1.06
Solid density	PVT method	g/cm3	1.64	1.69	1.75	1.16
Young's modulus(MD)	ASTM D638	MPa	12,000	13,000	14,000	7,600
Young's modulus(TD)	ASTM D638	MPa	6,000	8,100	5,800	4,200
Poisson's ratio(MD)	ASTM D638	-	0.23	0.21	0.43	0.40
Poisson's ratio(TD)	ASTM D638	-	0.74	0.94	0.64	0.53