Technical Information and Test Results for FenForm TM Silicone Sheet Composite Manufacturing

Transcription

1 Technical Information and Test Results for FenForm TM Silicone Sheet Composite Manufacturing 1

2 Contents FenForm TM Typical Physical Properties 4 General Materials Properties 4 Recommended Curing Conditions 4 Packing Details 4 Cured Material Specification 5 Testing Method 7 Physical Properties after Cycle Conditioning 8 DOE Analysis: Tensile Strength 9 DOE Analysis: Elongation at Break 10 DOE Analysis: Modulus at 300% 11 Cycles to Failure 12 Summary of Results 13

3 Used in the manufacture of composite materials

4 FenForm TM Typical Physical Properties Standard thickness of 0.9mm to 3.5mm (0.35 to 1.38 ). Standard widths of up to 1500mm (59.06 ). Available both cured and uncured. Cured material has a fine fabric impression to aid removal. Standard colours of translucent and grey. Standard 50 durometer, additional hardness grades available on request. General Materials Properties (FenForm TM 50) Working Temperature Shelf Life (Uncured): R.T.I. 1500C 6 months from date of manufacture when stored at 240C wrapped as supplied Recommended Curing Conditions Press cure for 5 minutes at 1160C with 200psi (1.MPa) of pressure. Packing Details Protected both sides with polythene film. Packed in cardboard cartons supported on a central tube. 4

5 Cured Material Specification Property Test Method Units Typical Values FenForm TM 50 Hardness ASTM D2240 0Shore A 51 Density ASTM D2792 g/cm Tensile Strength Elongation at Break Tear Strength Compression Set Dielectric Strength Thermal Expansion Colours ASTM D412 DIE C ASTM D412 DIE C ASTM D624 DIE B ASTM D C MPa 10 % 600 KN/m 33 % < 45 (4 2000C) Kv/mm 20 m/m0c 6.5 Grey & Translucent 5

6 FenForm TM silicone membranes are the flexible choice for your composites manufacture 6

7 Testing Method Fenner Precision owns a well-equipped on-site testing laboratory, which includes a Tensometer equipped with an environmental chamber. DOE (Design of Experiments) was carried out on FenForm TM and a competitor s equivalent product. The factors investigated were: Temperature Extension Number of cycles 7

8 Physical Properties after Cycle Conditioning FenForm TM Temperature (0C) Cycles Tensile Strength Elongation At Break Modulus at Elongation % 100% 200% 300% Competitor s Material Temperature Cycles Tensile (0C) Strength Elongation At Break Modulus at Elongation % 100% 200% 300%

9 DOE Analysis: Tensile Strength 9

10 DOE Analysis: Elongation at Break 10

11 DOE Analysis: Modulus at 300% 11

12 Cycles to Failure Material samples were cycled under controlled conditions until failure. Sample Temperature 0C Extension % Sample Thickness (mm) FenForm TM Average Number of Cycles to Break Competitor s Material When FenForm TM was cycled at extreme conditions (to give a manageable testing time), it lasted an average of 25% longer than the competitor s product. 12

13 Summary of Results FenForm s TM Tensile Strength is higher than the competition s. The difference is maintained as the temperature and cycles are increased. The difference between the Elongation at Break of FenForm TM and the competitor s material decreases at higher temperatures. The Modulus figure at a given elongation is higher for FenForm TM than the competitor s material. The figure is more consistent as the temperature and cycles are increased. FenForm TM gives 25% more cycles than the competition when tested at the same temperature and with the same elongation conditions. FenForm TM is a stronger material that gives a more consistent performance at operating temperature from first cycle to last. 13

14 When quality is paramount, FenForm TM is the most reliable choice 14

15 Reusable FenForm TM silicone sheet outperforms the competition round after round FenForm TM : the Heavyweight Champion for Composites Manufacture

16 For more information, contact: Fenner Precision Tel: +44 (0) Fax: +44 (0) ISO Made in England