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PMI (polymethacrylimide) RS foam is specially developed for use as a structural core in connection with vacuum infusion processes.

PMI foam core

PMI (polymethacrylimide) RS foam is specially developed for use as a structural core in connection with vacuum infusion processes. It is applied in components of aviation, aerospace, sports equipment with resininjection process to reduce the weight.  

 

PMI core makes it possible to produce sandwich components in a single step (co-curing), resulting in reduced overall production time.

 

It is highly suitable with autoclave technologies and vacuum infusion processes, including RTM (Resin Transfer Moulding) and VARTM (Vacuum Assisted Resin transfer moulding) processes. Its cell size is small, achieves an optimal compromise between low resin absorption and satisfactory bonding of the facings to the core.

 

Processing and production
PMI is especially suitable for vacuum infusion and RTM processes due to its optimized cell structure, where it can be used at temperature up to 180°C with pressure up to 0.7 MPa after heat treatment.

 

Thermoforming and shaping
PMI can be easily thermoformed or CNC machined to meet customers’ requirements, bringing tremendous manufacturing advantages. High precision, pre-shaped and ready-to-use foam cores in complex or simple geometries can also be supplied by the Machining Department.
 

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MECHANICAL PERFORMANCE

Type Test Method Units PMI 24 PMI 30 PMI 50 PMI 75 PMI 110 PMI 200
Density
ISO845
kg/m³
24±3
30±3
 30±3 75±7 110±10 200±15
Compressive Strength
ISO844
MPa
0.25
0.40
 0.85 1.70 3.60 9.50
Tensile Strength ASTM
D638		 MPa 0.6 0.80 1.68 2.30 3.70 7.00
Elastic Modulus
ASTM
D638
MPa
25
38
 83 108 197 380
Elongation At break
ASTM
D638
%
2.8
2.4
 2.6 2.8 2.8 3.0
Flexural Strength
ASTM
D790
MPa
0.4
0.80
 1.60 2.90 5.20 13.0
Shear Strength
ASTM C273
MPa
0.3
0.40
 0.85 1.25 2.38 5.00
Shear Modulus
ASTM C273
MPa
12
15
 30 48 80 160
Compressive Creep
GB/T 15048
%
>=2.0
 /
Temperature Resistance
DIN 53424
°C
>=200

Compressive creep testing conditions:
PMI 24    130 °C/0.1MPa/2h
PMI 30    130 °C/0.1MPa/2h
PMI 50    130 °C/0.3MPa/2h
PMI 75    150 °C/0.3MPa/2h
PMI 110    180 °C/0.3MPa/2h

Note: Technical data of our products are typical values for the nominal density.
 

PRODUCT SPECIFICATION

PMI Size (mm) Standard Thickness Range (mm) Thickness Tolerance (mm)
24
2500x1250
1-60
±0.2
30
2500x1250
1-60
±0.2
50 2500x1250 1-120 ±0.2
75
2500x1250
1-100
±0.2
110
2160x1100
1-90
±0.2

Note: 1-4mm thick sheet is supplied in 1/4 or 1/2 sheet size.
All heat-treated sheets supplied in sealed aluminum packaging.

 

PMI foam core
Disclaimer

Приведенные данные верны, насколько известно Cel Compenets srl, все предоставленные данные в цели информации продуктов компании Cel Compenets srl и их потенциального использования и возможные сферы приминения.Не даются и не подразумеваются никакие гарантии в отношении определенных свойств продуктов или их пригодности для конкретных приложений. CEL S.r.l. оставляет за собой право вносить изменения.