用于輪胎膠料加工助劑

1、Processing Promoters for Tire Compound Processing用于輪胎膠料的加工助劑Dr.Lothar Steger /Rhein Chemie Rheinau GmbH Folie: 1 Processing Promoters : Definition加工助劑的定義Processing Promoters are tailer made additives, which enable a homogeneous mixing and the subsequent processing of the rubber compound“加工助劑是一種量身定做的

2、添加劑，它們可以實(shí)現(xiàn)均相混煉并改善后續(xù)加工行為。 Processing Promoters improve the extrusion, calandering and molding performance but do not negatively influence the vulcanization properties of the mixture.“它們可以改善擠出、壓延和模壓硫化性能并且不會(huì)對(duì)硫化膠性能帶來(lái)負(fù)面影響。2Correlation 生產(chǎn)過(guò)程與實(shí)驗(yàn)設(shè)備的相關(guān)性Production and Laboratory Equipment高壓毛細(xì)管流變儀門(mén)尼粘度擠出機(jī)流變硫化儀模壓

3、硫化混煉擠出注壓硫化剪切速率粘度3Division of Processing Promoters according to Their Chemical Composition 根據(jù)化學(xué)組成對(duì)加工助劑的分類(lèi)Chemical descriptionExamplesHydrocarbons碳?xì)浠衔颬araffinic waxes and oils鏈烷烴蠟 Metal soaps金屬皂類(lèi)Zn-, Ca-, Mg-, K-soaps鋅/鈣/鎂/鉀皂Carboxyl-organic compounds羧基化合物Fatty-acids, -alcohols, -esters 脂肪酸、 脂肪醇、 脂肪脂

4、類(lèi)Resins樹(shù)脂類(lèi)Petroleum-, Indene-Coumarone-, Phenolic-resins石油/古馬隆-茚/酚醛Crosslinked glycerides交聯(lián)甘油酯Vulcanized vegetable oils交聯(lián)植物油Polymers with low molecular weigth低分子量聚合物Poly-ethylene, -propylene, -butadiene聚乙烯、 聚丙烯、 丁二烯Other organic compounds with hetereoatoms其它雜原子有機(jī)物Aryldisulphide, Fatty-acid-amide芳基二硫

5、化物、脂肪酸酰胺4Division of Processing Promoters according to their effects in the tire compound根據(jù)對(duì)輪胎膠料的影響的分類(lèi)Effect in tire 輪胎膠compound 料影響Chemical Composition化學(xué)組成Trade Names 商品名Mastication Agent塑解劑2,2-dibenzamido-diphenyldisulfideFe-complex with organic additivesRenacit 11Aktiplast 8Dispersant分散劑Fatty-aci

6、d,-alcohol,-ester脂肪酸醇酯Mixture of Zn-soap,fatty-ester, fillerAflux 42Aktiplast STLubricant潤(rùn)滑劑Zn-soaps鋅皂Ca-soaps鈣皂Aktiplast PPAflux 16Homogenizer 均勻劑Special fraction hydrocarbon resins特殊碳?xì)錁?shù)脂Rhenosin TP 100Tackifier增粘劑Indene-Coumarone-Resin /low m.w. Alkylated phenolic resin古馬隆-茚/烷基化酚醛樹(shù)脂Rhenosin C-30Rh

7、enosin PT 1005Processing Promoters with Mastication Effect具有塑煉效果的加工助劑Description組成Effects效果Product產(chǎn)品Fatty-acid,-ester, Fe-hemi脂肪酸/脂/鐵的絡(luò)合物Mastication of NR塑煉Aktiplast 8Zn-soaps (mainly saturated), Fe-hemi飽和脂肪酸鋅和鐵的絡(luò)合物Mastication of NR, Improvement of flow 塑煉和改善流動(dòng)性Aktiplast MZn-soaps (mainly unsaturate

8、d) Fe-hemi不飽和脂肪酸鋅和鐵的絡(luò)合物Mastication of NR, Filler Dispersion塑煉和填料分散Aktiplast FAlkylated-Poly-Sulfides, Fatty-acids, Fe-hemi烷基多硫化物/脂肪酸/鐵的絡(luò)合物Mastication of NR,塑煉Filler Dispersion,填料分散Improvement of flow 改善流動(dòng)Aflux 616Mastication Effect塑煉效果Mooney Viscosity ML1+4/100CFatty AcidFe-hemiNoneNoneZn-soapsatura

9、tedFe-hemiZn-soapUnsaturatedFe-hemiAlk.-Poly-sulfideFatty-acidsFe-hemiNR, Internal Mixer, 3, dumped at 140，天然橡膠在密煉機(jī)中密煉3分鐘排膠溫度140 Aktiplast 8Aktiplast MAktiplast FAflux 61ML1+4/100C無(wú)塑解劑脂肪酸與鐵絡(luò)合物飽和鋅皂與鐵絡(luò)合物不飽和鋅皂與鐵絡(luò)合物烷基多硫化物、脂肪酸與鐵絡(luò)合物7Mode of Action of Processing Promoters加工助劑的作用原理內(nèi)潤(rùn)滑作用溶解于橡膠中外潤(rùn)滑作用不溶解于橡膠中分散潤(rùn)

10、滑8Processing Promoter Effects as a function of their polymer solubility溶解度不同加工助劑作用效果不同Polymersoluble additive與橡膠相容intramolecularLubricant分子內(nèi)潤(rùn)滑surface coating of fillers; leads to polymer swelling填料表面涂層導(dǎo)致橡膠溶脹Dispersant分散Polymerinsoluble additive與橡膠不相容extramolecularLubricant分子外潤(rùn)滑migration to the polym

11、er surface under stress應(yīng)力作用下遷移到橡膠表面Lubricant潤(rùn)滑9Processing Promoter Lubricant Effects加工助劑的潤(rùn)滑作用p pcritVgVgwallMixturewallVgFilmslippage膜滑動(dòng)high processing prom. Concentration加工助劑濃度高wallMixtureEffects at critical shear stress with active processing promotersEffects at critical shear stresswithout proces

12、sing promoter Wall-Slip Wall-StickFilm-Slippage不含加工助劑時(shí)臨界剪切應(yīng)力影響含加工助劑時(shí)臨界剪切應(yīng)力影響10Change of polymer conformation with shear stress隨剪切橡膠聚集體結(jié)構(gòu)的變化statistical polymer coil in the core of the flow as area of low shear低剪切速率區(qū)域橡膠分子鏈的卷曲polymer chain orientation at high shear stress高剪切應(yīng)力下的橡膠分子鏈取向Capillary Wall毛細(xì)管

13、壁11Analytical determination of surface concentration表面濃度的檢測(cè)分析Surface analysis via FTIR-Spectroscopy:SampleCalibration of the EPDM-Zinc-Soap mixture :2468100,40,60,811,2Concentration Zn-soap phrExtinctionReference peak: 1376/cmRegression coeff. = 0,99927Characteristical pattern of the zinc soap : 153

14、2 1/cmProcessingPromoter12Processing Promoters Lubricant Effect加工助劑的潤(rùn)滑效果Processing Promoters perform a certain function determined by their solubility in the rubber. 加工助劑潤(rùn)滑效果取決于它們?cè)谙鹉z中的溶解度They reduce shear stress due to high surface concentrations at location of high shear gradient. They resolve in t

15、he mix after leaving the shear zone (die). 加工助劑降低剪切應(yīng)力，這是因?yàn)樵诟呒羟袇^(qū)域其濃度很高Each polymer or blend needs its unique processing promoter taking into accaount the processing technique. 任何橡膠或其共混物都有與其相適應(yīng)的加工助劑Processing Promoetrs increase quality and quantity of extrusion and injection molding significantly. 加工助

16、劑有效增加擠出、注射產(chǎn)品的質(zhì)量和產(chǎn)量13Tread：Carbon Black / E-SBR胎面膠： 炭黑/ E-SBRSBR 1712110BR-Buna CB 10 20N-220 80Aromatic Oil 10Aktiplast GT 3Stearic acid 16PPD 1TMQ 1Wax/Antilux 654 2Zn0 3Sulfur 2,2TBBS/Vukacit NZ0,9加工助劑 : Aktiplast GT/PP (Zn-soap / mainly saturated)Control without Processing Promoter100Mixing (Moon

17、ey, HPCR)ML 1+4/100C 85 HPCR 100C/11s-1 85Extrusion (Torsiograph)Extrusion rate g/min 104 Extrusion volume cm/min 117Curing (Rheovulcameter)Injection volume mm3 160Injection speed mm3/sec 115Literature 參考文獻(xiàn)ITEC 1998 Akron/OHRhein Chemie Technical Report 6314viscoelastic properties depend strongly on

18、 the degree of silanisation 膠料粘彈性能強(qiáng)烈依賴(lài)于硅烷化反應(yīng)的程度varying green rubber properties會(huì)改變生膠強(qiáng)度 Milling behaviour strongly depends on degree of silanisation混煉行為強(qiáng)烈依賴(lài)于硅烷化反應(yīng)的程度Porosity 白炭黑的多孔性Varying extrudate swell改變擠出脹大Plugged ventings堵塞排氣孔Problems related with the processing of silica compounds白炭黑混煉膠存在的弊端15Tr

19、ead：Carbon Black / E-SBR胎面膠： 炭黑/ E-SBRS-SBR-Buna VSL 1955-S2596Nd-BR-Buna CB 2430Silica-Ultrasil 700070Carbon Black N-11010X-50 S (50% Si-69)12,5Aktiplast ST 5ZnO 3Stearic acid 1Aromatic Oil20TMQ 16PPD 1,5Antilux 654 1,5CBS 1,5DPG 2Sulphur 1,5Processing Promoter : Aktiplast ST (mixture of Zn-soap, f

20、atty-ester, filler)Control without Processing Promoter 100Mixing (Mooney, HPCR)ML 1+4/100C 83HPCR 100C/11s-1 85Extrusion (Torsiograph)Extrusion rate g/min 116Extrusion volume cm/min 117Curing (Rheovulcameter)Injection volume mm3 200Injection speed mm3/sec 155LiteratureITEC 1996 Akron/OHRhein Chemie Technical Report 6016Influence of Aktiplast ST Flow properties萊茵塑分ST對(duì)流動(dòng)性能的影響01020304