Introduction to SkyPURA

Transcription

1 distribuito in Italia da: FERRO-PLAST SRL VIA GRANDI, VIMODRONE, MI Tel Fax Introduction to SkyPURA 2015.

2 Agenda [Session #1] Introduction to SkyPURA (PCT) [Session #2] Fiber applications [Session #3] Film applications 1 1

3 Session I. Introduction to SkyPURA (PCT) PCT(Polycyclohexylenedimethylene Terephthalate) 2

4 Price, Performance Thermal Stability SkyPURA - Introduction SkyPURA PCT is a high performance engineering plastic with excellent thermal stability, toughness and fast crystallization half time. SkyPURA PCT has outstanding thermal resistance property that can tolerate high temperature of SMT reflow process. PEEK PES PEI PA46 PPS PSU PCT Ecozen PS/PPE PC/PET PC/ABS PMMA PET PA66 TPE PA6 PBT POM SMT, Reflow temp. zone PETG ABS PP 224 PS HIPS LLDPE HDPE PVC LDPE PET Nylon66 PCT PPS PPA LCP Amorphous Semicrystalline HDT for engineering plastics 3

5 SkyPURA - Introduction SkyPURA PCT base resin is produced by reacting TPA and CHDM (1,4-cyclohexane dimethanol). SK Chemicals is the only vertically integrated company that produces PCT using captive TPA and CHDM in Korea. Film Electrical Electronic TPA Fiber Automotive CHDM PCT Base Resin Home Application PCT Compound Food Contact SkyPURA Main Properties High Reflectivity and Durability Long Term Heat Resistance Low Moisture Absorption Reflow and Lead-free Soldering Capable Resin TPA Chemical Resistance Cleanliness : Free of Particles, Low Oligomers Excellent metal adhesive Obtain out-of-mold surfaces with high gloss, metal effect and specialty colors Lightweight CHDM 4

6 SkyPURA - Product Grade SK Chemicals commercialized PCT in 2012, with the current application of LED reflectors and engineering plastics. SK chemicals currently provides 2 different grades of PCT base resin. New PCT grades are now being developed for film & fiber applications, utilizing PCT s intrinsic properties & benefits at each application. Grade Film & Fiber (being developed) SkyPURA 0302 SkyPURA 0502 Remark Intrinsic Viscosity (dl/g) Mn(kg/mol) ± Polydispersity (Mw/Mn) GPC, reference PS with X-PS column Melting point (Tm( )) ±3 286±3 Crystallization temperature under cooling (Tmc( )) Glass transition temperature Tg( ) ±5 235± DSC scan rate 10 /min Color-L* 88±4 88±4 90±4 Color-a* 0±3 0±3 0±0.3 Color-b* b* < 6 b* < 6 b* < 6 After 150, 1hour 5

7 SkyPURA - Advantage for LED reflector SkyPURA PCT offers comprehensive initial reflectance and reflectance stability required in light-emitting diode(led) packages found in display backlight and general lighting SkyPURA PCT is applied for middle watt (0.5~1.5W) as main material and extended toward high watt market by customers [Wattage/PKG] Consumption [ 14] (compound) Ceramics SMC 2,000 MT 1.5 EMC PCT 4,000 MT 0.5 PA9T PA10T PA6T 10,000 MT 2,000 MT 7,000 MT Total 25,000 MT 6

8 SkyPURA - Applications and Characteristics SkyPURA PCT is suitable for LED reflectors because of its high stability towards heat, moisture and light SkyPURA PCT has Good electrical properties also make it possible for PCT to be used for connectors for LED Reflector High Reflectivity and Durability Long Term Heat Resistance Low Moisture Absorption for Connectors Reflow and Lead-free Soldering Capable Resin Long Term Heat Resistance Good Electrical Properties Low Moisture Absorption 7

9 SkyPURA - Applications and Characteristics SkyPURA PCT is expected to expand its application to film and fiber fields mainly due to the good thermal and hydrolytic stabilities. SkyPURA PCT also can be used for oven trays because of its long-term heat resistance and FDA approval for Film for Fiber for Oven Tray Good thermal, Color, Hydrolytic Stability Good Electrical Properties Low Moisture Absorption Good laundry durability at high temperature Excellent chemical resistance/ hydrolytic stability Shape/performance stability and durability Long Term Heat Resistance FDA Approval 8

10 Session II. Fiber Applications PCT (Polycyclohexylenedimethylene Terephthalate) 9

11 - PCT Fiber application : Heat Resistance PCT s feature as compared to PET less dense so it offers greater bulk. provides softness inherent to the molecular composition. offers better release properties than PET which means that reusables wash and clean up easier. has better hydrolytic stability than PET so it better withstands the rigors of repeated washings and sterilization has a higher melt point than PET. has better chemical resistance to auto fluids and printed circuit board cleaning chemicals than PET. PCT PET Specific gravity Melt point ºC/ºF 290/ /480 Tenacity (grams/denier) Elongation (% at break) Work recovery from 2% extension from 5% extension from 10% extension Compression Recovery (%) from 34.5 mpa (5000psi) Shrinkage (%) 190 ºC (air) <1 <6 100 ºC (water) <0.5 <1 Safe ironing temperature (ºC) Heat Resistance - PCT vs. PET Stability of fibers under hot, moist conditions (27 lbs. live steam) (This slide was referred from ; 10

12 - The Application Candidates for PCT Fiber Fabric, Knit Bedding, Clothing, Pad, Carpet, Laundry net. Etc (High end apparel, Hotel, Hospital) - Good laundry durability at high temperature - Good chemical resistance/ hydrolytic stability - Shape/performance stability and durability - Softer hand feel (vs. PET) - Allergy Free Car seat, Tarpaulin & Outdoor product - Long term stability and durability - Shape/performance stability - Good chemical resistance/anti-contamination 11

13 - The Application Candidates for PCT Fiber Non-woven Fabric Industrial bag filter / Normal filter - Shape/performance stability and durability - Steam/detergent cleaning, chemical resistance - Light, Soft toughness - Good decontamination, dust elimination PCT has better stability against oxidative degradation than PPS. Automobile/Building insulation, Padding - Weight loss (10% less, vs. PET) - Shape/performance stability and durability - High heat resistance/chemical resistance - Soft Crimp / Heat reservance 12

14 Session III. Film Applications PCT(Polycyclohexylenedimethylene Terephthalate) 13

15 - Film Application : Technical issues in the PCT film process Most biaxially oriented film process and equipments are optimized for PET. The Differences in the properties of PCT from that of PET can cause difficulties in the process to manufacture PCT film, most cases of which are related to highly crystalline properties of PCT. Copolymerization of PCT can be an effective solution to relieve the problem. Orientation study is now being done to understand different elongation behavior of PCT, as compared to PET. Difficulties Causes Solutions Hazy film during Casting too high rate of crystallization Control crystallization rate of material by Copolymerization Molecular Weight (Intrinsic viscosity > 0.80) Haze or rupture during orientation step Different Elongational Properties Copolymerization Adjust the Orientation Process Condition, optimized for PCT 14

16 - Film Application : Low Oligomer Content Observation of PCT film surface, heat treated for 2 hour at 150, with microscope ( 500) shows much less formation of oligomer for PCT or PCT copolymer film than the case of PET film. PCT has much less oligomer contents, compared with PET, which gives better processability at extrusion molding step, due to much less contamination of die and rolls. PCT copolymer PET Oligomer % PCT 0.12 Modified PCT 0.08 PET

17 - Film Application : Excellent Hydrolytic Stability I Hydrolytic stability test for PCT film and sheet : PCT has better hydrolytic stability than PET As shown observation results of PCT sheet surface and PET, for 5000 hour under 85, 85% humidity PCT surface is clean(no crack), but crack was observed at PET surface. Hydrolytic Stability for PCT film (Retention of elongation under 120, 100% humidity) Hydrolytic Stability for PCT sheet (with microscope, X5) (Observation of sheet surface under 85, 85% humidity, 5000hr) PCT PET 16

18 % - Film Application : Low Water Absorption This slide shows moisture absorption stability of films made by SK. Interestingly, PCT films show better hydrolytic stability than even hydrolytically stabilized PET films. Hydrolytic Stability for PCT film (Moisture absorption under 85, 85% humidity, 3000hr) Moisture Absorption (85, 85%, 5000hr) 720 hr 1200 hr 1800 hr 3000 hr 5000 hr PCT PET 17

19 We care for the future Healthcare, Earthcare 686 Sampyeong-dong, Bundang-gu, Seongnam-si, Gyeonggi-do Korea Jae Hwang Cho, Manager / Phone: / j.h.cho@sk.com Fax: