Docstoc

typical mold shrinkage for synerprene st 30 53 om is between 0

Document Sample
typical mold shrinkage for synerprene st 30 53 om is between 0 Powered By Docstoc
					T-BLEND®6692C-PE
Thermoplastic Elastomer Technical Document
T-BLEND®6692C-PE is a pre-formulated and pelletized thermoplastic elastomer compound based on styrene butadiene block copolymer. Thanks to its high strength and clarity. It is designed for the injection molding of non-toxic toy components and infant product parts with improved tear and torque resistance. Being a thermoplastic elastomer, T-BLEND®6692C-PE can be easily processed with general processing equipment and tools designed for thermoplastics and yet possess elastomeric properties at ambient temperatures.

Properties
Characteristics
Product Form Colour Specific Gravity Hardness (Injection Test Piece, Shore A) Tensile Strength at Break (kg/cm2) Elongation at Break (%) Modulus at 300% (kg/cm2) Tear Strength at Break (kg/cm) Melt Flow Index 5KG@180℃

Methods
NA NA ASTM D 792 ASTM D 2240 ASTM D 412 ASTM D 412 ASTM D 412 ASTM D 624 ASTM D 1238

Typical values
Pellets Transparent 0.88±0.02 67±2 66 421 49 43 25±10

Processing Guide
T-BLEND®6692C-PE rubber is a versatile material and can be processed by using high shear rate injection molding methods. T-BLEND®6692C-PE is excellent at normal processing temperatures. However should inadvertent loss of temperature control lead to decomposition the degradation products are non-corrosive. Generally, it reacts the same as other easy molding thermoplastics, such as polystyrenes. The finished parts have sharp and well defined details. Typical starting conditions for a reciprocating screw injection molding machine are listed in the accompanying chart. These values are intended only as guidelines, and the optimum conditions will vary from machine to machine. Typical mold shrinkage for T-BLEND®6692C-PE is between 0.008-0.015 inch/inch. Short cycle time can be achieved and the scrap is 20% recyclable without loss in properties. PS or EVA colour concentrates can be used to colour T-BLEND®6692C-PE.
All products purchased from or supplied by TSRC CORPORATION are subject to terms and conditions set out in the sales contract, order confirmation and/or bill of lading. TSRC CORPORATION warrants only that its product will meet those specifications designated as such herein or in other publications. All other information supplied by TSRC CORPORATION is considered accurate but is furnished upon the expressed condition that the customer shall make its own assessment to determine th application. TSRC CORPORATIONS makes no other warranty either expressed or implied. Including e product’s suitability for a particular purpose or those regarding such other information, the data upon which the same is based, or the results to be obtained form the use thereof ; that any product shall be merchantable or fit for any particular purpose; or that the use of such other information or product will not infringe any patent. <A0>

TSRC CORPORATION 39 Bengong 1st Rd., Gangshan, Township, Kaohsiung Country 820, Taiwan R.O.C. Tel : 886-7-623-3005 Fax : 886-7-622-5481 E-mail : t-blend@tsrc.com.tw

T-BLEND®6692C-PE
Thermoplastic Elastomer Technical Document
Suggested Processing Conditions
Barrel temperature Feed Rear Front Nozzle Mold temperature Back pressure Injection rate Cycle time 170℃ 180℃ 190℃ 200℃ 30-40℃ 3.5-50 kg/cm2 Moderate 35 – 50 sec

( 1kg/cm2 = 14.223 psi)

Precaution in handling and storing
T-BLEND®6692C-PE rubber pellets present no unusual handling problems, thus normal procedures for handling solids that might form a dust should be followed .

Non-Toxicity Declaration
This formulation is composed of TSRC, extender and additives known to manufacturer as food-contact and generally recognized as safe materials. This compound does not contain chemicals listed below and is free from VCM, halogen and heavy metals. Bisphenol A 1,3 Diphenylpropane Cis-1,2-Diphenyl cyclobutane trans-1,2-Diphenyl cyclobutane 2.4-Diphenyl-1-butene 2,4,6-Triphenyl-1-hexene 1a-Phsnyl-4a-(1’phenylothyl) tetralin 1a-phenyl-4e-(1’-phenylethyl) tetralin 1e-Phsny1-4a-(1’phenylothyl) tetralin 1a-Phenyl-4e-(1’-phenylethyl) tetralin 1e,3e,5a-Triphenylcylohexane 1e,3e,5e-Triphenylcylohexane Di(2-ethylhexyl)adipate Di(2-ethylhexyl)phthalate Di-n-butyl phthalate Benzyl n-butyl phthalate n-Butyl benzyl phthalate Di-n-propyl phthalate Dipentyl phthalate Di-cyclohexyl phthalate Tributyltin chloride(TBTC) This compound may contain Tris-nonyl-phenyl phosphite(TNPP) as stabilizer/anti-oxidant system in one of the polymer used.
All products purchased from or supplied by TSRC CORPORATION are subject to terms and conditions set out in the sales contract, order confirmation and/or bill of lading. TSRC CORPORATION warrants only that its product will meet those specifications designated as such herein or in other publications. All other information supplied by TSRC CORPORATION is considered accurate but is furnished upon the expressed condition that the customer shall make its own assessment to determine th application. TSRC CORPORATIONS makes no other warranty either expressed or implied. Including e product’s suitability for a particular purpose or those regarding such other information, the data upon which the same is based, or the results to be obtained form the use thereof ; that any product shall be merchantable or fit for any particular purpose; or that the use of such other information or product will not infringe any patent. <A0>

TSRC CORPORATION 39 Bengong 1st Rd., Gangshan, Township, Kaohsiung Country 820, Taiwan R.O.C. Tel : 886-7-623-3005 Fax : 886-7-622-5481 E-mail : t-blend@tsrc.com.tw

T-BLEND®6692C-PE
Thermoplastic Elastomer Technical Document
Upon performing its function as a stabilizer it, if present.reacts with oxygen releasing nonylphenol that may migrate out of the polymer and the residual nonylphenol content in the polymers should not exceed 300 ppm. Determination of migration of nonylphenol content in the polymer has shown that the level of migration is well below regulatory limits in the USA and European Union. Whilst it is theoretically possible that low molecular weight styrene oligomers (styrene dimers, and etc.)may also be present in this compound ,the levels are known to be so low that migration into substrates would not be detectable .Work on polystyrene itself has shown clearly that even where the presence of oligomers is significant, oestrogenic effects have not been observed in animal tests . To most people, the material should have low smell and no taste . Under proper storage and handling the uncontaminated material should not cause any irritation to human skin and eyes. It should not generate or decompose into hazardous substances when processed of within recommended temperature range. It is our advice that fabricators using this compound should conduct their own tests to confirm product suitability in meeting requirements for food-contact or mouth-contact applications.

All products purchased from or supplied by TSRC CORPORATION are subject to terms and conditions set out in the sales contract, order confirmation and/or bill of lading. TSRC CORPORATION warrants only that its product will meet those specifications designated as such herein or in other publications. All other information supplied by TSRC CORPORATION is considered accurate but is furnished upon the expressed condition that the customer shall make its own assessment to determine th application. TSRC CORPORATIONS makes no other warranty either expressed or implied. Including e product’s suitability for a particular purpose or those regarding such other information, the data upon which the same is based, or the results to be obtained form the use thereof ; that any product shall be merchantable or fit for any particular purpose; or that the use of such other information or product will not infringe any patent. <A0>

TSRC CORPORATION 39 Bengong 1st Rd., Gangshan, Township, Kaohsiung Country 820, Taiwan R.O.C. Tel : 886-7-623-3005 Fax : 886-7-622-5481 E-mail : t-blend@tsrc.com.tw


				
DOCUMENT INFO
Shared By:
Stats:
views:7
posted:12/18/2009
language:English
pages:3
Description: typical mold shrinkage for synerprene st 30 53 om is between 0