先進(jìn)彈性體納米復(fù)合材料

1、,,NANOCOMPOSITES FOR ADVANCED ELASTOMERS,Adam Schwartz,,The 4th International Conference,on,NANOTECHNOLOGY FOR THE,NANOTECHNOLOGY FOR THE,PLASTICS & RUBBER INDUSTRIES,PLASTICS & RUBBER INDUSTRIES,February 2, 200

2、9,,,Nano-Fillers in Elastomers,POSS,,,Carbon nanotubes CNT,,,,,Layered double hydroxideLDH,,,Nano silica,,,Modified Nano silica,Nano silicates,Clay modification,,,,,NanoZnO CaCO3 Mg(OH)2,CB(20-250 nm),Graphi

3、tegraphene,,Low friction coefficient,Nano-Fillers in Elastomers,POSS,,,Carbon nanotubes CNT,,,,,Layered double hydroxideLDH,,,Nano silica,,,Modified Nano silica,Nano silicates,Clay modification,,,,Graphitegrap

4、hene,,,NanoZnO CaCO3 Mg(OH)2,CB(20-250 nm),-Heat resistance temperature,-Decompression explosive resistance seals (EPDM ,FKM),-Electrical properties,Nano-Fillers in Elastomers,POSS,,,Carbon nanotubes CNT,,,,,

5、Layered double hydroxideLDH,,,Nano silica,,,Modified Nano silica,Nano silicates,Clay modification,,,,Graphitegraphene,,,NanoZnO CaCO3 Mg(OH)2,CB(20-250 nm),Nano-Fillers in Elastomers,POSS,,,Carbon nanotubes

6、CNT,,,,,Layered double hydroxideLDH,,,Nano silica,,,Modified Nano silica,Nano silicates,Clay modification,,,,CB(20-250nm),Graphitegraphene,,-Thermo-stability in polyurethane,-Curing agent for FPM ,XNBR

7、 (if R contains OH),-Reinforcing of silicone rubber,,NanoZnO CaCO3 Mg(OH)2,,,COOH,,R,,R,Nano-Fillers in Elastomers,POSS,,,Carbon nanotubes CNT,,,,,Layered double hydroxideLDH,,,Nano silica,,,Modified Nano sil

8、ica,Nano silicates,Clay modification,,,,CB(20-250nm),Graphitegraphene,,,NanoZnO CaCO3 Mg(OH)2,-reinforcing agent for EPDM,-vulcanizing agent for XNBR,-enhanced reinforcement (NR,CR),-heat resistance (NR),Nano ZnO,

9、Nano CaCO3 (<0.1 micro),-enhanced mechanical properties In NR,BR,SBR,Nano Mg(OH)2,-reinforcing agents in SBR,EVA,-halogen free flame retardant,Nano-Fillers in Elastomers,POSS,,,Carbon nanotubes CNT,,,,,Laye

10、red double hydroxideLDH,,,Nano silica,,,Modified Nano silica,Nano silicates,Clay modification,,,,CB(20-250nm),Graphitegraphene,,,NanoZnO CaCO3 Mg(OH)2,catalyst-free combust oxidized mesh,-coated with stearic a

11、cid,New products Produced by - Sol-Gel process from TEOS Hydrolysis-condensation,- from silicic acid,Nano-Fillers in Elastomers,POSS,,,Carbon nanotubes CNT,,,,,Layered double hy

12、droxideLDH,,,Nano silica,,,Nano silicates,Clay modification,,,,CB(20-250nm),Graphitegraphene,,NanoZnO CaCO3 Mg(OH)2,,Fumed silica 7-40 nm,Modified Nano silica,Nano-Fillers in Elastomers,POSS,,,Carbon nanotube

13、s CNT,,,,,Layered double hydroxideLDH,,,Nano silica,,,Modified Nano silica,Nano silicates,Clay modification,,,,CB(20-250nm),Graphitegraphene,,NanoZnO CaCO3 Mg(OH)2,,Smectite group,Montmorillonite(Na-MMt),,,

14、,,Structure of MMT,tetrahedral,octahedral,,,,,octahedral,tetrahedral,tetrahedral,,,interlayer,Basal spacing,,,,,Silicate layer 1nm,Na+,,Cloisite Na,FTIR,,Structure of MMT,tetrahedral,octahedral,,,,,octahedral,tetrahedral

15、,tetrahedral,,,interlayer,Basal spacing,,,,,Silicate layer 1nm,,Cloisite Na,Cloisite 15A,,NH4+,,,CH asymetric(2920),CH symetric (2850),,CH (sciss),Methyl,Dehydrogenated tallow ammonium,FTIR,FTIR,,Structure of MMT,tetrah

16、edral,octahedral,,,,,octahedral,tetrahedral,tetrahedral,,,interlayer,Basal spacing,,,,,Silicate layer 1nm,,Cloisite 15A,,NH4+,,Cloisite 30B,N+,CH3,,CH3,HT,,HT,,,CH2,CH2,,,,,OH,OH,Bis-(2-hydroxyl methyl tallow ammonium),F

17、TIR,FTIR,Nanocomposite Elastomers Activities at IPRC,Objective :,Replacement of a large part of carbon black by Nanoclays (NC),NC in SBR,Stress Strain graph,Stress Strain graph,30B+Si69,30B,15A+Si69,15A,15A Si69,30B,30

18、B Si69,Tensile (Mpa),M200 (Mpa),Tear (N/mm),Elasticity Yerzley (%),Tensile (Mpa),M200 (Mpa),Tear (N/mm),Elasticity Yerzley (%),15A,15A Si69,15A,15A Si69,15A,15A Si69,15A,15A Si69,30B,30B Si69,30B,30B Si69,30B,30B Si6

19、9,30B,30B Si69,Scorch time (min),Optimal Vulc .time (min),Scorch time (min),Optimal Vulc .time (min),30B,30B Si69,30B,30B Si69,30B,30B Si69,30B,30B Si69,Reaction NC- Mercaptosilane,,,,,NC,silane,,,,water,,,catalyst,Tempe

20、rature,Time,Product (RRA),Hydrolysis and condensation,RRA 10,30B+Si69,RRA 10,RRA 10,RRA 10,RRA 10,RRA 10,30B+Si69,30B+Si69,30B+Si69,30B+Si69,30B+Si69,30B+Si69,30B+Si69,RRA 10,Scorch time (min),Optimal Vulc .time (min),Te

21、nsile (Mpa),M200 (Mpa),Tear (N/mm),Elasticity Yerzley (%),silane,,,Product (RRA),water,,,,,,Catalyst (acid),,,,hydrolysis,50C,Reaction (condensation),mixing),,,Cloisite 15A,- 1/1,90C,Reaction NC-Mercaptosilane 2 stage

22、s,Stress Strain graph,FTIR,12h,8.5h,2.5h,polysiloxane,Acid (CH=O),silane,,,Product (RRA),water,,,,,,Catalyst (acid),,,,hydrolysis,Reaction (condensation),mixing),,,NC,Optimization parameters: compounds containing RRA:

23、 SBR,-Tensile Strength, Modulus ,Tear,-scorch time , optimal Vulcanization time,-Elasticity,Chemical changes in RRA characterized by FTIR,Reaction NC-Mercaptosilane 2 stages,silane,,,temperature,Product (RRA),time,water

24、,,,,,,Catalyst (acid),,,Temperature,Time,,hydrolysis,temperature,time,Reaction (condensation),mixing),,,NC,Factors affecting interaction NC-silane:,- NC- type,- solvent type (react. Temp.),- NC / hydrolysed silane ratio,

25、- catalyst type,- catalyst amount,- silane / water ratio,- reaction time,silane,,,temperature,Product (RRA),time,water,,,,,,Catalyst (acid),,,Temperature,Time,,hydrolysis,temperature,time,Reaction (condensation),mixing),

26、,,Factors affecting interaction NC-silane:,- NC- type,Cloisite 30B,Cloisite 15A,Factors affecting interaction NC-silane:,- NC- type,-Cloisite Na+,-Cloisite 15A,-Cloisite 93A,-Cloisite30B,Tensile Strength (MPa),Tear (N/

27、mm),M200 (MPa),Yerzley (%),15A,15A,30B,30B,RRA (phr),RRA (phr),RRA (phr),RRA (phr),RRA (phr),silane,,,temperature,Product (RRA),time,water,,,,,,Catalyst (acid),,,90C,Time,,hydrolysis,temperature,time,Reaction (condensati

28、on),mixing),,,,Factors affecting interaction NC-silane:,- NC- type :Cloisite 15A,- solvent type (react. Temper.),-Acetone (80-90C),-Isopropyl alcohol (110C),-isophorone (160),-diacetone alcohol (130

29、C),solvent,Cloisite 15A,-SBP,-water,,silane,,,temperature,Product (RRA),time,water,,,,,,Catalyst (acid),,,Time,,hydrolysis,90C,time,Reaction (condensation),mixing),,,Cloisite 15A,,Factors affecting interaction NC-silane:

30、,- solvent type (react. Temp.) Acetone,- silane / water ratio ),- stochiometric (45/9),- increasing water quantity,- NC- type :Cloisite 15A,Acetone,90C,,silane,,,temperature,Product (RRA),time,water,,,,,,Catalyst (acid),

31、,,Time,,hydrolysis,50C,time,Reaction (condensation),mixing),,,Factors affecting interaction NC-silane:,- NC- type,- solvent type (react. Temper.),- catalyst type,- toluene sulphonic acid,- oxalic acid,- acetic glacial ac

32、id,Cloisite 15A,90C,,silane,,,temperature,Product (RRA),time,water,,,,,,Acid acetic glacial,,,Time,,hydrolysis,50C,time,Reaction (condensation),mixing),,,Factors affecting interaction NC-silane:,- catalyst type (acid ace

33、tic glacial),- silane / water ratio :stochiometric,- NC- type :Cloisite 15A,- solvent type (react. Temp.) Acetone,- catalyst amount: (measured by pH),- pH-3.6,- pH-3.2,- pH-3.0,- pH-2.9,Cloisite 15A,stoechiometric,90

34、C,Tensile (MPa),M200 (MPa),Tear (N/mm),,,,,,,,,,,,,3.2,3.0,2.9,3.2,3.0,2.9,3.2,3.0,2.9,pH,pH,pH,pH=3.2,pH=2.9,pH=3.0,silane,,,temperature,Product (RRA),time,water,,,,,,Acid acetic glacial 8 drops,,,Time,,hydrolysis,90C,t

35、ime,Reaction (condensation),mixing),,,Factors affecting interaction NC-silane:,- catalyst type (acid acetic glacial),- silane / water ratio ):stoechiometric,- NC- type :Cloisite 15A,- solvent type (react. Temper.) Aceton

36、e,- catalyst amount: pH=3,Cloisite 15A,stochiometric,- NC / hydrolysed silane ratio,- 1/1,- 2/1,90C,,silane,,,temperature,Product (RRA),time,water,,,,,,Acid acetic glacial 8 drops,,,Time,,hydrolysis,50C,time,Reaction (co

37、ndensation),mixing),,,Factors affecting interaction NC-silane:,- catalyst type (acid acetic glacial),- silane / water ratio ):stoechiometric,- NC- type :Cloisite 15A,- solvent type (react. Temper.) Acetone,- catalyst amo

38、unt: pH=3,Cloisite 15A,stoechiometric,- NC / hydrolysed silane ratio (1/1),- 1/1,- reaction time (1h , 2h , 7h, 12h),90C,,SBR,Stress Strain graph,RRA50,RRA10,Scorch time (min),Optimal Vulc .time (min),Tensile (Mpa),M200

39、 (Mpa),Tear (N/mm),Elasticity Yerzley (%),RRA 50,RRA 10,RRA 50,RRA 10,RRA 50,RRA 10,RRA 50,RRA 10,RRA 50,RRA 10,RRA 50,RRA 10,DIN Abrasion (mm3),HBU (0F),Tear (N/mm),M200 (MPa),Yerzley (%),partial substitution of CB b

40、y NC,Specific gravity (g/cm3),,HAF 50,HAF 25,HAF 25,HAF 15,HAF 50,HAF 25,HAF 25,HAF 15,HAF 50,HAF 25,HAF 25,HAF 15,HAF 50,HAF 25,HAF 25,HAF 15,HAF 50,HAF 25,HAF 25,HAF 15,HAF 50,HAF 25,HAF 25,HAF 15,HAF 50,HAF 25,HAF 25,

41、HAF 15,HAF 50,HAF 25,HAF 25,HAF 15,HAF 50,HAF 25,HAF 25,HAF 15,Scorch time (min),Optimal Vulc .time (min),Tensile (Mpa),partial substitution of CB by NC,DIN Abrassion (mm3),Heat build Up(0F),Tens (MPa),Tear (N/mm),M200

42、(MPa),Yerzley (%),Specific gravity (g/cm3),HAF,RRA 74-1,RRA 75-2,HAF,RRA 74-1,RRA 75-2,HAF,RRA 74-1,RRA 75-2,HAF,RRA 74-1,RRA 75-2,HAF,RRA 75-2,HAF,RRA 74-1,RRA 75-2,HAF,RRA 74-1,RRA 75-2,HAF,RRA 74-1,RRA 75-2,HAF,RRA 74

43、-1,RRA 75-2,RRA 74-1,Scorch time (min),Optimal Vulc .time (min),1.16,1.13,4.0,9.07,10.9,18.3,11.8,24.0,54,48,120,93,65,79,1.06,1.12,13.9,9.0,Conclusions,- The effect of modified Nanoclays by hydrolysed mercaptosilane on

44、the properties of SBR compounds was studied,- Modified NC could replace 30phr CB by 15 phr NC (7.5 phr of modified NC or 4.2 phr of neat silicate) without reduction of modulus and minor reduction of tensile proper

45、ties,- Specific gravity was reduced from 1.12 to 1.06,,An unusual combination of Modulus and Tear resistance was obtained,- Future work – Application for technical rubber products,Thanks for your attention,Thanks t