! Similar material is available from Elastron[2] and others. This is due to its sealing performance and resistance to extreme temperatures, chemical exposure and harsh environments. In commercial glazing seals, Santoprene TPV is used for curtain wall, storefront, architectural window, and skylight weatherseal applications. 0000032722 00000 n 0000007816 00000 n 4 0 obj Thermoplastic elastomers, or TPE, are a broad class of polymer that includes a multi-phase polymer system. () , : : : , : : . : : : , : , , () . Santoprene TPV (thermoplastic vulcanisation) is used in weatherseals, underhood and under-car applications, and interior components. <> 3 0 obj `"@'6;]X##ncLF>['*OoGw+rQB. 314.450.4789 Of course, your seal may never see these temperatures, but the results do suggest how these two materials will perform at lower temperatures over an extended period of time. (hZ/g Saint Louis, MO 63115, 2022 Reed Rubber Products, Inc. | Website Design by Captiva Marketing | Site Map. %ypLMWQa96'8uRm\IGr`7 G z%$md'Dki )f~v?O I.EMS=5|^~, P $9 pLUIkghscsf)J$q`f!AcibuM-,wTiw+q L7S3. 0000011375 00000 n %PDF-1.5 hbbd```b``"z@$zLl~*XLe$cd e$ t:$3k2012e` ^ % hb```Y| @ l*003}/ucbQ>0u4gt(e A1c CsK&*,Z,Z|,,Z6QC 2NfY"Ae H ' Material that has been recycled even from old parts exhibits properties almost as good as virgin material as an article in Design News magazine[7] reported on May 5, 2003. These particles are fully vulcanized rubber (typically EPDM rubber for most Santoprene TPV grades) in a thermoplastic phase (most often PP in the case of Santoprene TPV grades). Thermoplastic vulcanizates (TPV) are part of the thermoplastic elastomer (TPE) family of polymers, but are closest in elastomeric properties to EPDM thermoset rubber, combining the characteristics of vulcanized rubber with the processing properties of thermoplastics. Manufacturing a part using Santoprene TPV, in contrast to a rubber, is less complex. endobj Compared to processing rubber, thermoplastic processing of Santoprene TPV can deliver shorter cycle times, a higher part output per hour, and the reuse of scrap produced during processing. Santoprene TPV is a dynamically vulcanized alloy consisting mostly of fully cured EPDM rubber particles encapsulated in a polypropylene (PP) matrix. ?_"bxJA(>RR(xtHG BX_B{SYWzt|dsAIhQ:dT U:!N&Y1N{kt/X(m,N1b*=!+;m}hYTH39&+'a:HG#55i^'tBL2HV/fY XFe|Nhb`+NRq2{yc& stream %#o_ C Thermoforming: The thermoforming properties of Santoprene TPV are similar to acrylonitrile butadiene styrene (ABS) and exhibit good melt strength, which provides uniform and predictable sag characteristics during heating. 0000024019 00000 n <<5DC42C2CC2D17E48BD854E24E3BD352A>]/Prev 433388>> Here are some facts you should know when choosing a material for your seal. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 595.32 841.92] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> x]r8w{1U&@ RN&S]}1LD>>G$hk- s> HF/WZD"6bSW>>z{u|;%rHAH(a&iK w-T)-sk"%q|t PnHnKE@dfRLOv"2jP0Zi|G}f6?i:4'xwnm+s5T|5[5/holA NaIH&zH@ &&j6^;Xs}BJEX} H }WSC]gT (), . xref Santoprene TPV is used in wiring connectors to make watertight seals with electrical and thermal resistance; insulation for high voltage applications; and flexibility even at low temperatures to 60C. 0000003407 00000 n 4 0 obj Injection molding: Santoprene TPV grades can be processed using conventional thermoplastics injection-molding equipment at reduced cycle times compared to thermoset rubber. 42 0 obj <> endobj %%EOF hb``e``9 Y8PeA{C5*{_=g01=.\/\ 7mf"e tv TPV is a dynamically vulcanized alloy consisting mostly of fully cured EPDM rubber particles encapsulated in a polypropylene (PP) matrix. It was also used in the medical industry as a gasket on syringe plungers. Due to its sealing properties, Santoprene TPV was also successful in the domestic and high-rise construction sectors in applications such as window seals, caster wheels, tubing and small hose parts, electrical connectors and coatings for wire and cables. NwlQ)6 s!+a`kq3 OH -KxINCs 8e/c#7aiv1XfD0bIl1w$"$q_E F8feT!p8 For road and rail construction projects, Santoprene TPV is used for bridge and parking decks, water stops, rail pads and other applications. OD&.Hq% @/qf~z;Y=OJ}CV2'\A1;97P `\r3M8! Our TPV compounds are an innovative blend of olefins and EPDM. Part of the TPE family of polymers, TPV is the closest in elastomeric properties to EPDM thermoset rubber. Reed Rubber Products uses a collection of material gradesto meetindustryrequirementsas well aseach customersspecificcomponent andproduct system needs. In tests that compared old and new automotive glass run channel profiles, there was no significant difference in the tensile stress strain propertiesa key indicator of sealing performance. aFwOCX U 3xK_AD>?K#T2 *ktb|?Ou.|]7') ? stream It is also commonly used in residential glazing seals due to its low air and water infiltration ratings for the life of window and door systems. , . h cBu@j~M[`6=0a`De~e+:^zS=$d:6Hf@K[I4p o9W9B22 @rt&`Jr?77;$F? E#k6;x_h@ F|VNW^+aGO}? 0000013075 00000 n Photographs made using an atomic force microscope and a scanning electron microscope show a multitude of very small particles, typically no bigger than a couple of microns in diameter. 1 0 obj TPE, TPV, TPU: Understanding Thermoplastic Elastomers. %PDF-1.3 % endstream endobj 89487 0 obj <> endobj 89488 0 obj <>/Font<>>>/Rotate 0/StructParents 20/TrimBox[0 0 595.276 841.89]/Type/Page>> endobj 89489 0 obj <>stream 2 0 obj endobj 5 0 obj 0000029642 00000 n 3 0 obj endstream endobj 43 0 obj <> endobj 44 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]>>/Rotate 0/TrimBox[0.0 0.0 595.276 841.89]/Type/Page>> endobj 45 0 obj <>stream %%EOF This can result in part cost reduction, less tooling/machinery, lower scrap costs, and optimization of material logistic costs compared to rubber. endstream endobj startxref Our results are tabulated below. f/.0q uBi^p.^u] buSwzY[@|laW4' ^bo^ 9NInm]-w)mwYe0X /]V[_Q./n{6ttWnlWYG,9;{S;.Gv[YYRU9cu?mY%v}_nUkl%o{hYzFT7z]B[3PX/(iNAYUWB$d(>T.jQQhWJM_;B&W=CvQ-gdrcp$r-EbQ|#1T . When producing sheet for thermoformed parts, key attributes of Santoprene TPV are maintained, including colorability, impact resistance, weatherability, chemical resistance, non-skid, matte surface in appearance and feel. 0000002238 00000 n B-]{c)yz%G-TB-=&fQ4O?>&RarW#A:uw`7>B[!%S|ks$Bs*W%He:=9FKolUT+"QvzA:-K437!zTC^Z[4L@V4epTP-g"Wd;JUpT>lF/'q#v4a6ya7]=0#X!jr OahNbB*:6$,Y #$I0Y".sKp?syayq#a %PDF-1.6 % Reed Rubber recycles all production scrap, whichwould go into a landfill ifwe used athermoset material. In a heat aging test conducted by an independent lab, Reed held dozens of TPV and PVC specimens in a heat aging chamber for 12 weeks at 100C. In our experience, however, flexible PVC does not hold up well over the years, especially if subject to warm air. The name Santoprene was trademarked in 1977 [1] by Monsanto and the trademark is now owned by Celanese. 0000000016 00000 n 89523 0 obj <>stream 0 Cycle times can be much faster, because the parts do not have to cure in the mold, which is typically two to three minutes for rubber. $ gV`@,c,e^, e"}}C2HCm|_NW3@Q^Uo_}r=Zj>R$$9g\g?`6>JgO7oWv}^Tu3@(VI*|{v":.MJ! Ul4!Z)cIP 3EV@LUbh fjma@U.X n uPg%vKC!0c|uMn~YwRYibs. %PDF-1.4 % % H\@{/g.]U=Bgr?lf NV1"o}. Learn how and when to remove this template message, Elastomeric Survivors- Design News Magazine, ExxonMobil Santoprene thermoplastic vulcanization (TPV), https://en.wikipedia.org/w/index.php?title=Santoprene&oldid=1096115808, Articles with a promotional tone from November 2014, Creative Commons Attribution-ShareAlike License 3.0. sealing performance: long-term aging durability combined with dimensional stability and physical properties over the life of the part; aesthetics: aspect harmonization between parts and comfort touch interior skins; processing: processability on standard thermoplastics processing equipment; weight reduction: lower density, part design optimization, and material replacement; recycling: fully recyclable within the manufacturing process. 0000003241 00000 n Part of the TPE family of polymers,Thermoplastic Vulcanizates (TPVs)areadvanced,high-performance elastomers that combine the best attributes of vulcanized rubberand thermoplastics. 0000024449 00000 n %%EOF 0000023662 00000 n In weatherseals, TPV is used as a lightweight alternative to thermoset rubber materials in semi-dynamic and static parts, while in underhood and under-car applications it is well-suited for air ducts, tubing, molded seals, grommets, suspension bellows, cable jacketing, plugs, bumpers and many other parts. TPVsoffer keyfeaturessuch aslow compression set,extendedaging performance,chemical resistance, anda wide range of flexibility, all achievedwiththe processing ease of thermoplastics. If the insert and the TPV are compatible materials, a melt bond occurs at the interface between the two materials. The strength of this bond is affected by several factors, including interface temperature, cleanliness of the insert and the melt temperature of the TPV. endobj Other tests, which looked at whether the surfaces of the profiles bore the marks of radiation-induced degradation, showed the material surface appears homogeneous. 0000021462 00000 n endstream endobj 46 0 obj <>stream The results were dramatic: the TPV specimens changed very little, but the PVC specimens shrank by nearly 10%, and became much harder and less elastic. qo(UR5s! 0000021124 00000 n After a short drying period, TPV pellets are automatically transferred to the molding machine or extrusion line. Adynamically vulcanizedalloy, TPVsconsistmostly of fully curedEPDMrubber particles encapsulated in apolypropylene(PP) matrix. TPE, TPV, TPU: Decoding the Thermoplastic Elastomer Alphabet. 0000001409 00000 n This page was last edited on 2 July 2022, at 11:58. With so many variations and corresponding differences in properties and cost, how do you know which is right for your application? , , () / () . HWr}ga%{-K$ZB"b`PZszn7kI|&2uyOl~;=Kc ^'l}>SW4Ib+mO1PHEOdWvvaZ?^7 wgR1WK4rvrgMXVbg mnSmG>y{.Yu3" )x@9zs}3_.?0? s]w~,({soF;D,K98Wue%$ 8UZ}R^,R!PUwg[}6h!eE:`h\"wxEXMy=IV\VeyksaqiM)i1shYdCl}?vFFCoLLYO{=r#x3yY8K4!!yy For electrical components, Santoprene TPV can be used for watertight seals, enabling connectors to be insert-molded to cable jacketing, producing a single integral part. TPV flexibility allows for greater freedom of mold design where undercuts are employed. Two-shot injection molding: TPV can be combined with polymers through several types of multi-shot injection molding processes. Blow molding: Santoprene TPV can be blow molded in single layer, multi-layer, exchange blow, sequential 3D, suction blow, flashless extrusion blow, injection blow and press-blow molding processes. There are almost 100 grades in the S portfolio which are used globally in the automotive, household appliance, electrical, construction and healthcare markets. k$CdLa"k-qvj'N v1=U 8{wS?_t[>UX@z:TD7U*pY >,12\|AW &\||q#)zon ]l52+sVeX:v$=Q{S&H. For example, the new and old TPVs had nearly the same properties after air and oil aging. ^_Bml5G/z* Q3no7[?lHZ+tSvqR5: ]:P>&gD~U#ho[CD0s itxTKz`_860&b+[y^X74tN/W-.\w1 orU_q="kT+(|8s2ygOw?ikfHiA[TJ_T+4b}2ZRO,~2}_$uI?]L.e` stream xmJaj >*b'cT.HjW9}Ch?HxF ?/vmd}+"SPYT~Ozn_~\XW}Wo?S\O&Y{kgw??\'QVuY )i-pSPt]l``i dXTNia 0^be`,vZ(?lnf@BF d#?0 uG [ , . 5 0 obj <> endobj The process produces both a finished part and a substrate during each cycle. L ,%9BDZy!cK-Zu$fXV 7ZI;W Pl . 0000006269 00000 n 81 0 obj <>stream Santoprene TPV is ready to use and does not need to be compounded with different ingredients such as reinforcing fillers (carbon black, mineral fillers), stabilizers, plasticizing oils, and curing systems[5][6]. TPVs have a combination of elastomeric properties, like compression and tension set, coupled with aging performance and chemical resistance. Whether designing a static or dynamic seal, it is important not to overlook the long-term performance of the elastomer. |7G|.c?d1.I|1zAsl( ]hP?]1vV;v.tsN)q.x) -Kv)j*8q&/\JYg/hZ(Cl181z&G`8 w|,,r"g@X"|&}3p mlb,"8Qe%LTWnTAVuz4C,J;"u=A 9x1nhM?-@r~{H :4{.*g`7MOP k}cM'u6{/;'RUrxeQNU u8>)qj|(U=ghYb>4>-[ &Gx5`nU}6Fd%cQ as8 clA;qzz CZ)9 `iA9+ The TPV part only has to cool, typically about 30 seconds, and then it can be removed from the mold or cooled in water. Its properties enable it to be used in a range of parts including pump seals, hoses, couplings, vibration dampeners, drum rollers, knobs and controls. <> [3], TPV was created following several years of research and development to find a new material for injection molded tires. hb```"kV}5~g`0ptHL0Uxx)UK_k!`D)9N5Jtlw8HosC eAvFmjXs8T?N(IGBD^YT&C 0000021237 00000 n 0000024532 00000 n endobj zPmb P>:i.9y7c+6HH , , - , : , Squid Game , . endstream endobj 6 0 obj <>]/Pages 1 0 R/Type/Catalog/ViewerPreferences<>>> endobj 7 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]/Properties<>>>/Rotate 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 8 0 obj <> endobj 9 0 obj <> endobj 10 0 obj <> endobj 11 0 obj [/Separation/TF_Red/DeviceCMYK<>] endobj 12 0 obj <>stream trailer Insert molding: Insert molding consists of placing a preformed substrate into the mold and injecting TPV around or over it. 3901 Union Blvd, Suite 106 Compression set also remained virtually identical. PVC is a common choice for seals, and has been around a long time. 0000002809 00000 n c]}dZKGr;e^#P]@?C @3v( After all, we understand that you want your material to be flexible, but your budget may not have room to stretch. % , , , , , , , ! 2 0 obj 0000038027 00000 n 1 0 obj 0 Also, different grades of TPV and of PVC could yield somewhat different results, but these findings are consistent with most of the literature available. Designed for specific engineered applications, Santoprene TPV grades range from a hardness of 35 Shore A up to 50 Shore D. Santoprene TPV grades offer the following: Santoprene TPV grades are designed for a broad range of specific engineered applications. 0000029069 00000 n In the appliance sector, a dishwasher sump boot made with Santoprene TPV provided good sealing and resistance to heat and fluids. 0000033583 00000 n In plumbing, Santoprene TPV is used to create long-term seals, gaskets and grommets that are resistant to flex fatigue, harsh temperatures and chemicals. 0000001820 00000 n 0000009939 00000 n x]$GqX2X>h?TyTeG bmlj:4EgTDTt?K/"zcw#[O>o{qXfvnwa {?kK979;|{w2z*v.376?{W0qsW0q_y9"e_Z) *avK}0Y/aa^P'4CH/AI(L)?Ge(W]a^ ~\ek O5mR_]f\6"yKjz7q'KGV75\e0]p3qvwmBLXNz5[+$ )crPn\|/5(~ Z AS$&o] > 6KufMaI~RK@wTCm\k'{z0R 5HL!sMZMuv Tb1y8cvj]]]O${4+Q#YJq)1(l&j _4{A8E~~ 0000021351 00000 n <> Not only do they feature excellent long-term properties like chemical resistance, adhesion, and weatherability, they also offer processing ease and the potential for significant cost savings over thermoset rubbers. 0000028580 00000 n While this search for a new tire material was unsuccessful, it led to the development of TPV, which combines the characteristics of vulcanized rubber with the processing properties of thermoplastics. {])=' 0000017109 00000 n dJZ`fDfcIeRD|I1)}P Fi"c&%%")%)(e{>z`=,|RW&[sU|c_~&3j2{+s~I59fZb/e5)~f dy1kAtl^3We'QdI($=UE8 b+2 iwEl?~KkO*owAMlQL{|3'MX7's:GpXQmf;nrxgn[kqn'&r>DKP$(B2Ex+,dZ16BTGL;4X\Hw^&"6(}Xrk1)`$ LbDbHF83T&&xxpR!~ <>>> %PDF-1.4 :h:rKp^}fE>);E{B+E[,VSgm=dS>*/^CECx"zS-s8nc(~T_n It is used in industrial wire and cable connectors and low-voltage industrial cable applications that include insulation and jacketing, in addition to consumer wire and cable uses. Santoprene TPV can be processed using conventional thermoplastic processes such as injection molding, blow molding and extrusion. hUYo8+|lPE 0000008884 00000 n By combining multiple materials, a wide variety of parts applications, such as a hard/soft combination, can be achieved. 89506 0 obj <>/Filter/FlateDecode/ID[<265AA470C2327FF946559CB3C3A27C86><52C621172715FD439E6907FC6194BAF0>]/Index[89486 38]/Info 89485 0 R/Length 104/Prev 1332104/Root 89487 0 R/Size 89524/Type/XRef/W[1 3 1]>>stream <> 36 0 obj <>stream cl^&*@7hFA|J+j_q 1m!l^a'^887Sfzv:ziA@;E5|=t\!G[!<6e@cEW 5WYR5e6/-:c1}s:R=*#,jBNS2s2u+HAskRzr=8w@[[$5~pBioc2=G1}`_$crm:Jq)2 ~/u]_#pi-a?8j 0 Unlikethermoset rubber materials such as Neoprene and EPDM, TPVisfully recyclable within the manufacturing process.
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