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雙二四硫化劑
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- 産品名稱：藍星MM-71791-40
- 産品編号：23
- 規 格：25
- 用 途：Description SILBIONE MM SERI在微ES 71791 U are silicone rubber就長s which cure after addi市來tion of a vulcanising agent (cho一報sen as a function 科海of the production process). 術南 This series includes four 哥師products which dif知妹fer by their hardness once 和算cured : 40-50-60 an購務d 70 Shore A. Once proc風路essed SILBIONE MM SERIES 71791 U , "Foo資鄉d contact and biomedical grade"少內 are intended for: · biomedical 雜是applications · app慢紙lications requiring a ma雜請terial that is non-toxic under normal她樹 conditions of use and一遠 inert to food p少資roducts. SILBIONE MM SERIES 7179雜到1 U , are elastomers comprising 習樂polymethylvinylsiloxane 水樹gums and silica. They hea學樂t cure after addition of an刀廠 organic peroxi好化de compound. Th筆秒is vulcanisation must be f業匠ollowed by post curing at 200°C. Spe通你cial properties · Easy processing · 自件Highly transparent · Exce大近llent mechanical pr場她operties, including high tear做懂 strength and a good compromise 風相between tear strength and compr兵答ession set · Very good resistance 術如to oxidising agents (oxy樹上gen, ozone, UV) · Very 志人good behaviour for all ster文車ilisation modes · V電車ery good release p農司roperties · Chemically inert 兵微Regulations The composition of SILBION師唱E MM SERIES 71791 U enables the器好m to be used in conformity with the為雪 definitions in the fo購行llowing European and American re知城gulations. Food門技 contact: France : J雜店ournal Officiel – Br件會ochure 1227– order dated書醫 25 November 1992. Germany : BGVV X舊書VA and LIIA. United States : : US- F志愛DA- CFR 21- part 177. 2600. It道北aly : Gazetta Ufficiale – 很刀law dated 1973 and addendum. 妹個Moreover, samples of 相南SILBIONE MM SERIES 71791 U, cataly南飛sed with dichl這城oro- 2, 4 benzoyle peroxide, h商地ave been subject to migr畫黃ation tests in accord鐵遠ance with European regulations車開: Directives 82/ 711/ EEC and 93/ 去黑8 EEC and American 又訊regulations: US- FDACFR 21- part 177. 空高2600. Regulations Drinking water 靜輛contact SILBION爸年E MM SERIES 71791 U 老東of hardnesses 50 and 6大冷0 ShA, have been success問金fully proven to b我新e in conformity with 相頻German KTZ regulation part 1.3.13.子了 Medical devices.請個 Basic biological studies; cytot老少oxicity, irritation, sensitisat志拍ion and hemocompa東好tibility, required by d睡湖irective 93/42 CE da志火ted June 14 1993, r討中elative to medic人雪al devices and US這懂P Class VI of US, have been carried ou機如t on samples of SILBION筆看E MM SERIES 71791 U , catalysed using 從亮dichloro 2,4 benzoyle peroxide.農做 The summaries of the bio街電logical studies ar微山e available on request. In all cases歌從 it is the finished articl制訊e manufacturer’s responsibility 離湖to check conformity with the影子 tests imposed by the appropr間慢iate regulations. For medic家視al applications,歌得 Rhodia Silicones 事如SAS forbids the c輛了ommercialisation of these elasto還近mers for the produc錯也tion of medical devices: · impla謝外nted for more than 29 days · in conta們姐ct for more than 29 d空山ays with blood and the mucous membra區風nes (contraception, obstetri照個cs) · for plastic surgery唱報 Applications SILBIONE MM 月呢SERIES 71791 U , once catal購錢ysed and processed is recom討腦mended for the manufacture of著放 the following a少小rticles: Those which enter in conta都南ct with food such as 藍訊: · Tubes for drink distributio服信n, including potable water 西吃 · Baby’s bottle tops · Vari可那ous technical parts. · Sections, s習費leeves, calendered sheets, belt姐兒s and conveyor belts Those use為人d in pharmacy such as: · Tubes and 日現piping for the circ見輛ulation of liquid or soluble 兒志 medicines · Medicine conveyo家現r belts, etc. Those u鄉是sed for medical applications such a飛聽s: · Tubes and piping子綠 for extra-corporal circula窗計tion · Oxygenotherapy tubes · Self-in購多jectable syring人很e seals · Breathing mas相了ks Quality Assu去些rance 1- Manufacture Rhodia Silicones美醫 takes particular care in manu村如facturing and quality control in ord暗城er to guarantee users 木自with the supply of an elas讀對tomer whose quality level i師我s in conformity with the special req是腦uirements in these types of謝到 application: · lack of cross-po理熱llution. · high level西能 filtration. · Specific contr下哥ols. All of these低鐵 operations are pa技雨rt of Rhodia Silic快吃ones’ quality control policy, ce話外rtified to ISO 9001. Quality Assur媽理ance 2- Control Specific controls ar兒對e carried out on each b鄉章atch of SILBIONE MM SERIES 7179人書1 U to meet the vari到是ous regulations. The results are writt離光en on the analytical test 姐聽certificate in addit他兵ion to the mechanical chara山計cteristics. SPECI紅喝FICATION FOOD GRADE MEDICAL 個腦GRADE ON POST CURED VULCANISE答資D PRODUCT Identity : IR Spectrum In去如 Conformity m m Volatile cont聽自ent (%): (200°C-10g-4h) 0.5 ma拍你xi. m Residual peroxides (%) 0.08 max錯歌i. m Mineral oils (fluorescence)煙資 In Conformity m O通知N AQUEOUS EXTRACT Turbidity (NTU) 4 ma樂務xi. m Alkalinity (ml 0.01 M H書器Cl) 1 maxi. m Aci校南dity (ml 0.01M NaOH) 1.訊開5 maxi. m Reducing substances (ml 空白0.01 M Na2 SO3) 1 maxi業訊 m ON HEXANE EXTRACT H多師exane soluble (%) 3 m明懂axi m m Phenyl compounds (快呢DO/UV) 0.4 maxi. m Heavy metals (ppm山麗) (other than aqueous extract) 什明 10 maxi m Processing me舊睡thods The choice of vulcanising ag我站ent (peroxide) to add to the SILBIONE 南遠MM SERIES 71791 U depends on商鐵 the processing method and the con雜他formity with various “Food contact 錢自grade” regulations. The various pro費朋cessing methods are summarised i湖雜n the table below: SIL雨和BIONE MM SERIES 71791 U Dichloro- 2,問風 4 benzoyle Peroxide at 50 % (E) D空個icumyl Peroxide a錢北t 95 % (D) 2, 5 dimethyl- 2,美刀 5- di (tertio- b山是utylperoxy) hexane at喝用 72 % (L) compression Moul件門ding injection 0.6雨兵 parts per 100 master batch動麗 0.6 parts per 海村100 master batch ho熱要t air vulcanisation 0.9作務 to 1.25 parts per 100快個 master batch 6 to 12 ba花姐r 0.6 parts per 100 E也但xtrusion pressuri工去sed master batch 如北 steam vulcanisation 12 to 20 bar 0費錢.6 parts per 100 ma個厭ster batch Calandering hot air vul師還canisation 0.9 to 1照技.25 parts per 10熱影0 master batch Characteristics 海少1- Physical prope暗一rties Type (according 照唱to AFNOR T 40002)....... ...........短場................器站......MVQ Hardnes不是s Specific gravity at 25 ° C, approx. 土來 40 ShA 1.10 50 ShA 1.13 60 Sh用習A 1.15 70 ShA 1拍舞.18 Characteri聽街stics Natural colour...................通黑...... ...........................師鐘.............Tr吧日ansparent 2- Mechanical properties就好 Below we give an example 事唱of the characteristi公吃cs obtained using dichloro- 2, 章又4 benzoyle peroxide (at友業 50%) as a vulcanising agen中舊t. Measurements a中綠re made on a 2 mm thick moulded sheet他公, cured for 8 min at 道輛115°C and post cured土長 for 4 hours at 用北200°C. SILBIONE MM SERIES 71791 U 71 有靜791/40 U 71 791/50 U 71 791/60 U 71 物國791/70 U Peroxide do低間se in parts per 100 of書線 master batch 0.9 1 1.25 1.2近學5 ShA hardness , points, app外樹rox (Standard ASTM D 22的廠40) 43 53 62 72 Tensile strength, 城水MPa, approx, (Standard AFNOR NF T 46- 校年002) 9.0 9.5 10 9.5 El吧拿ongation at break, %, approx, (Stan靜草dard AFNOR NF T 46商坐- 002) 600 640 500 410 Te匠風ar strength, kN/m, approx, (Standar的煙d ASTM D 624 A) 31 38 38 34 Compre老兵ssion set ( 22h/ 177°C/ 25%),黑我 %, approx, (Standard A劇坐STM D 395 B) 27 34 40 40 Reboun街物d resilience (t在學hickness 8 mm), %, app地中rox, (Standard DIN 53得道 512) 50 45 42 37 頻話 Linear shrinkage %, 器問approx, 3.5 3.7 3.7員空 4.0 SILBIONE MM SERIES 717民做91 U must be post cured at 200°C 暗書after vulcanisation (it日年 is recommended not 做事to exceed this temperature一白). Post curing is essential in o有算rder to : · Ensure conformity with新工 the legislation and regulations c冷爸urrently in force ·火煙 Stabilise the mechan他討ical properties of the elastomer as wel下慢l as its dimensions · 校也Ensure the heat stab西月ility of the elastomer · Improve i草內ts chemical resistance, espec月地ially with respect to solve計討nts, fats and steam Processing 美水1- Adding peroxide to SILBIONE MM SERI數錯ES 71791 U This operation is perfo光窗rmed on a two-r美討oll mixing mill. O雨又perating procedure 現個: à Check that the equipment is sc員城rupulously clean in order to avoid 男的 including impuritie自習s that would detract f校拿rom the quality a黑作nd properties of the SILBIONE MASTE綠公R BATCH. à Plasticise the SILBIONE MAS著道TER BATCH. Use of a back / fr理錢ont roller speed rat習會io of between 1.25 and 1.4 ensures就店 sufficient friction to日弟 give good plasti花樂cising. à Add the perox的制ide, then mix by cutting a化司nd crossing. à Cool the cylinde門理rs throughout the operati但服on in order to maintai樹路n the SILBIONE MASTER 校訊BATCH at a temperature below 30°C; I小妹n the case of catalysis usi看玩ng crystalised dicu票身myl peroxide, after dis船哥persion it is recommended to h坐子eat the elastomer to 50°C那件 to ensure the fusion of the per們術oxide, then to cool to 30° on吃知ce fully incorporated. 2- Processin歌睡g SILBIONE MM SERIES 71791 U obtaine拿討d in this way can be 著線processed using all conventional鄉秒 methods in the 動為rubber processing industry used f外外or traditional materials. Processing 水樂In this way, using SILBIONE MASTER風到 BATCH plasticised on a two-roll 電短mixing mill, we could: à Either roll了家 a sheet to the required thickness 司玩from which we will cut pr近多eforms for moulding. à or cut bands t通唱hat will be used知的 for example to feed an injec村高tion press or to prepare s市靜heets for calendering. 3兵我- Vulcanisation 舊快and post curing Vulcanisa月白tion of SILBIONE MM SERIE影劇S 71791 U is carried out a請你t temperatures according to得到 the type of peroxide樂鄉 used. Once cured we rem多爸ind you that SILBIONE M東通M SERIES 71791 U must be post c校得ured at 200°C in 通民forced air ovens wi腦看th protected heating ele好家ments. The post cure duration 子亮depends on the thickness of the part秒雪s obtained (moulded, 科開extruded or calendered). 紙鐘 Post curing gives the elastomer its 問購optimum characteristics a北醫nd ensures its confo好工rmity with the requirem好得ents of the regul數對ations currently 微車in force. Important comments : Pos又業t curing at a temper樂理ature above 200°C or any accide離司ntal increase in temperature (e.g.坐舞 to around 250-300°C) can damag體厭e parts causing stiffening, crackin校鐘g or formation of a surface glaze國民. It is therefore importan信做t to use good temperature control tog樹玩ether with forced air ventilat還新ion. Non-ventilated ov小視ens or those with insufficient 麗車ventilation can cause "reversion" to計件 occur : a reduction歌山 in hardness due to the onset of d請喝epolymerisation. Important 間女notice RHODIA SILICONES SAS guara物一ntees the properties given for SIL身木BIONE MM SERIES 71791 U .市窗 However, our com睡文pany cannot guarantee 北房the behaviour of t木風his master batch and the application北很 that is made of it 筆秒by the user, since it ha嗎北s no control ove見好r the conditions of a事匠pplication nor the process under wh城門ich a study has們放 been conducted. Packaging SILBIONE我鄉 MM SERIES 7179海市1 U are available in 25 k刀飛g reinforced cardboard carto技窗ns. Each master batch is enclosed in a金會 release coated sheet. Storage 妹微and shelf life SILBIONE MM S票短ERIES 71791 U may be stored 睡機in its original un地兵opened packaging at a tempera南制ture below +40°C for u員白p to 18 months from the date of manufa志黑cture marked clearly on the 些下 packaging. Past 草靜this date, Rhodia 媽爸Silicones no longer guarantees that說畫 the product meets the sales specifica員人tions.When kept in it熱站s original unopened packaging, Accord司村ing to the hardness, it is 短弟recommended to slightly 飛熱refreshen SILBIONE MM SERIES 7179外了1 U before using. Comment : Prolonged廠空 storage beyond the recommended expiry 小術date generally 內南means a reduction i生工n hardness and an increase in re市亮freshening time Saf就山ety Please refer to the Safety志技 Data Sheets for SILBIONE MM SERIES 坐紅71791 U . Warning to users The inf坐視ormation contained in t國業his document is give身外n in good faith based on弟師 our current know愛道ledge. It is onl線車y an indication and is in no 工唱 way binding, part飛腦icularly as regards in醫謝fringement of o要西r prejudice to third party rights th制唱rough the use of our products. RHODI厭校A SILICONES GUARANTEES THAT ITS PRODUCT會化S COMPLY WITH ITS SALE北爸S SPECIFICATIONS. This inf討南ormation must on no訊就 account be used as a subst輛兒itute for necessary prior tests 說西which alone can ensure that a prod間些uct is suitable for a given use. U志開sers are responsible for ensuring comp鄉西liance with loca拿對l legislation and for ob現讀taining the necessary certificat雜們ions and authorisati我分ons. Users are requested to check tha劇們t they are in possession of the latest友北 version of this document an們老d RHODIA SILICONES is at行湖 their disposal to supply any a有腦dditional infor銀姐mation.
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