Pebax,polyether block amide

Pebax polyether block amide copolymers consist of regular linear chains of rigid polyamide blocks and flexible polyether blocks. They are injection molded, extruded, blow molded, thermoformed, and rotational molded. 

PEBAX POLYETHER BLOCK AMIDE THERMOPLASTIC ELASTOMERS... 

By this time it was evident that a commercial market for PEBA did exist. Several applications targeted during the early development of the product appeared to be feasible and a need for commercial quantities of the resin was imminent. In 1981 a commercial production line was brought On stream in Europe, and a unique new family of polyether block amide thermoplastic elastomers under the tradename of PEBAX polyether block amide was formally introduced at Interplas in Birmingham, England. 

Figure 10.3 DeMattia flexural fatigue at -20°C of Arkema Pebax polyether block amide elastomers [8].

Table 10.16 Taber Abrasion of Arkema Pebax Polyether Block Amide Elastomers (ASTM D1044, HI8 Wheel, 1 kg Load)...

Faruque H S and Lacabanne C ( 1986) Study of multiple relaxations in PEBAX, polyether block amide (PA12 2135 block PTMG 2032) copolymer using the thermally stimulated current method. Polymer 27 527-531. ... 

Elesher Jr J R (1986) PEBAX polyether block amides - a new family of engineering thermoplastic elastomers, in High Performance Polymers Their Origin and Development (Eds. Seymour R B and Krishenbaum G S), Elsevier, New York, pp. 401-408. 

Koch R B (1982) PEBAX (polyether block amide), Adv Polym Tech 2 160-162. Konyukhova E V, Buzin A I and Godovsky Y K (2002) Melting of polyether block amide (Pebax) the effect of stretching, Thermochim Acta 391 271-277. 

Newer materials are being developed which lie between plastics and elastomers. One of these is a polyether block amide copolymer developed by ATO Chemie, Europe, called Pebax. This is a tough, highly flexible material which by changing the ratio of ether and amide can have a wide balance between hardness and flexibility. Currently this material is relatively expensive ( 3,000- 5,000 per tonne). 

Pebax . [Atochem N. Am. Atochem UK] Polyether block amide polymers, extrusion/molding grade polymer used in sport, automobile, elec7electionics, medical, agriculture, and mechanical handling industries, adhesives. 

Pebax 2533 SA 00 Polyether block amide Thermoplastic elastomer... 

Polyether block amides (PEBA) are internally plristicized by copolycondensation of PA 12 and PTHF block segments. The grades are differentiated by Shore hardness D as a measure of flexibility. In addition to tjrpical PA 12 application ranges, PEBA are used for seals, gaskets and in medical devices. (Trade name of these grades of Elf Atochem is Pebax )... 

General Description Elf Atochem Pebax Resins, breathable resins, are polyether block amides (PEBAs), thermoplastic elastomers made of a flexible polymer and a rigid polyamide. Extruded films made with Pebax are compact, thoroughly waterproof, and breathable. 

Pebax TPE polyether block amide GF filled or not Elf Atochem... 

PEBA Polyether-block-amide Pebax Atochem... 

Among the many deals, only a few may be mentioned here. Arkema and Ciba Specialty Chemicals signed a global cooperation agreement enabling Ciba to distribute Arkema s Pebax permanent antistatic agents. They are polyether block amides intended for use in ABS, polystyrene and PVC. The two companies are also co-operating in research and development in the same area. Ciba has also become the exclusive distributor outside Asia of Kanebo Chemical s silver-based antimicrobial products for polymers. They are said to be effective, safe and heat-resistant to over 200 °C. 

Polyamide TPEs are usually polyester-amides, polyetherester-amide block copolymers, or polyether block amides. Polyamide TPEs are characterized by then-high service temperature under load, good heat aging, and solvent resistance. The copolymers are used for waterproof/breathable outerwear, air conditioning hose, under-hood wire covering, automotive bellows, flexible keypads, decorative watch faces, rotationally molded sports balls, and athletic footwear soles. Producers include Elf Atochem (Pebax). 

Following the U.S. introduction of PEBAX in 1981, a market for the product rapidly developed. Based On the apparent future demand for this new family of resins, a commercial production facility for polyether block amide thermoplastic elastomers was brought on Stream in the U.S. 

Polyether block amides (PEBAX or TPE-A) are relatively stable against a number of chemicals compared to other thermoplastic elastomers (TPE). Several solvents cause material swelling that Increases with Increasing flexibility of the material [657]. However, general statements cannot be made suitability tests are required. 

Faruque H S and Lacabanne C (1987) A thermally stimulated current technique for measuring the molecular parameters of Pebax, a polyether-block amide copolymer, J Mater Set 22 675-h78. 

Polyether- block-amide elastomer Polyether-block-amide elastomer PEBA Pebax... 

Block copolymers can contain crystalline or amorphous hard blocks. Examples of crystalline block copolymers are polyurethanes (e.g. B.F. Goodrich s Estane line), polyether esters (e.g. Dupont s Hytrel polymers), polyether amides (e.g. Atofina s Pebax grades). Polyurethanes have enjoyed limited utility due to their relatively low thermal stability use temperatures must be kept below 275°F, due to the reversibility of the urethane linkage. Recently, polyurethanes with stability at 350°F for nearly 100 h have been claimed [2]. Polyether esters and polyether amides have been explored for PSA applications where their heat and plasticizer resistance is a benefit [3]. However, the high price of these materials and their multiblock architecture have limited their use. All of these crystalline block copolymers consist of multiblocks with relatively short, amorphous, polyether or polyester mid-blocks. Consequently they can not be diluted as extensively with tackifiers and diluents as styrenic triblock copolymers. Thereby it is more difficult to obtain strong, yet soft adhesives — the primary goals of adding rubber to hot melts. 

Poly(amide-b-ethylene oxide) copolymers were presented in 1990 as a promising membrane material [43]. These block copolymers were developed in 1972 but in 1981 began to be used for commercial purpose under the trade name Pebax , produced by ATOCHEM [44] (now ARKEMA). Another important group of segmented poly(ester)s used for membranes are block copolymers based on PEO and PBT (poly(butylene tereph-thalate), known under commercial name of Polyactive [45]. By changing the polyamide and polyether segment, molecnlar mass and the content of each block, the mechanical, chemical, and physical properties are nicely tnned as well [46]. 

The fiber used in this study was Twaron 2200 a poly(p-phenylene terephthalamide) (PPTA) aramid fiber, supplied by Akzo Nobel Research (Arnhem). The fibers have modulus Ef= 136 GPa, tensile strength, thermoplastic elastomer, polyether amide block copolymer supplied by Atofma known commercially as Pebax . These thermoplastic elastomers (TPE) consist of linear chains of hard polyamide (PA) blocks covalently linked to soft polyether (PE) blocks via ester groups. The grade of Pebax used was Pebax 7033, with a modulus Eva. = 128 MPa, yield stress ay = 32 MPa, Yield strain ey = 25 %, ultimate failiue stress a m = 67 MPa and an ultimate strain e m = 400 %. 

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