Download PDF Mixing of Vulcanisable Rubbers and Thermoplastic Elastomers

Free download. Book file PDF easily for everyone and every device. You can download and read online Mixing of Vulcanisable Rubbers and Thermoplastic Elastomers file PDF Book only if you are registered here. And also you can download or read online all Book PDF file that related with Mixing of Vulcanisable Rubbers and Thermoplastic Elastomers book. Happy reading Mixing of Vulcanisable Rubbers and Thermoplastic Elastomers Bookeveryone. Download file Free Book PDF Mixing of Vulcanisable Rubbers and Thermoplastic Elastomers at Complete PDF Library. This Book have some digital formats such us :paperbook, ebook, kindle, epub, fb2 and another formats. Here is The CompletePDF Book Library. It's free to register here to get Book file PDF Mixing of Vulcanisable Rubbers and Thermoplastic Elastomers Pocket Guide.

Retrieved 31 January Categories : Manufacturing Rubber products Rubber industry. Hidden categories: All articles with unsourced statements Articles with unsourced statements from January Namespaces Article Talk. Views Read Edit View history.


  • Cheats and Deceits: How Animals and Plants Exploit and Mislead?
  • Rapra Review Reports. Mixing of Vulcanisable Rubbers and Thermoplastic Elastomers (Wood P.R.).
  • The Era of Choice: The Ability to Choose and Its Transformation of Contemporary Life (MIT Press).
  • Literacy Instruction for English Language Learners Pre-K-2 (Solving Problems in the Teaching of Literacy).
  • ASTM D - 16 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension!
  • Most Downloaded Articles!

Languages Magyar Edit links. By using this site, you agree to the Terms of Use and Privacy Policy. The residence time in the extruder is preferably less than 35 sec, more preferably less than 30 sec, most preferably less than 25 sec. The rotation speed of the screws may vary from revolutions per minute rpm , but is preferably at least rpm, more preferably at least rpm, most preferably rpm. Examples of suitable thermoplastic polyolefins used in the dynamically vulcanized thermoplastic elastomer according to the present invention are thermoplastic polyolefin homo- and copolymers or blends thereof.

US6221965B1 - Method for producing a thermoplastic elastomer material - Google Patents

For example homopolymers of ethylene or propylene, copolymers of ethylene and propylene, copolymers of ethylene and an alpha-olef in with carbon atoms or copolymers of propylene and an alpha-olef in with carbon atoms may be used. Preferably, a homopolymer of propylene is used. Most preferably, EPDM is used as vulcanizable rubber. The EPDM preferably contains parts by weight ethylene monomer units, parts by weight monomer units originating from an alpha-olef in and parts by weight monomer units originating from a non-conjugated diene.

As alpha-olefin use is preferably made of propylene. The vulcanizable rubber is at least partially vulcanized. Those ordinarily skilled in the art will appropriate quantities, types of curing agents and vulcanization conditions required to carry out the vulcanization of the rubber. The vulcanizable rubber can be vulcanized using varying amounts of curing agent, varying temperatures and varying time of vulcanization as long as the conditions of the process according to the present invention are fullfilled.

Curing agents, accelerators and co-agents are known to the skilled person and are for example described in US-A It is also possible to use siloxane compounds as curing agent, for example hydrosilane or vinylalkoxysilane. The vulcanizable rubber is preferably vulcanized with the aid of phenol resins, siloxanes or peroxides as curing agent. The invention also relates to the dynamically vulcanized thermoplastic elastomer obtainable by the process of the present invention. The degree of vulcanization of the dynamically vulcanized thermoplastic elastomer can be expressed in terms of gel content or conversely, extractable components.

Gel content reported as percent gel is determined by a procedure which comprises determining the amount of insoluble polymer by soaking a specimen of the thermoplastic elastomer for 48 hours in organic solvent at room temperature and then weighting the dried residue and making suitable corrections based upon knowledge of the composition. Thus corrected initial and final weights are obtained by substracting from the initial weight, the weight of soluble components, other than the rubber to be vulcanized, for example extender oils, plasticizers and components of the compositions soluble in organic solvent.

The expression is well known in the art and described in US- A The dynamically vulcanized thermoplastic elastomer according to the present invention optionally comprises other customary additives which may be compounded. Examples of such additives are reinforcing and non-reinforcing fillers, plasticizers, antioxidants, rubber processing oil, extender oils, lubricants, antiblocking agents, antistatic agents, waxes, foaming agents, pigments, flame retardants and other processing aids known in the rubber compounding art.

Examples of fillers that may be used are calcium carbonate, clays, silica, talc, titanium dioxide, carbon or mixtures of any of these. Examples of rubber processing oils that may be used are paraffinic, naphthenic or aromatic oil derived from petroleum fractions or mixtures of any of these. In the process of the present invention the thermoplastic polyolefine, the vulcanizable rubber, the curing agent and the customary additives may, all and in whole, be fed into the entry port of the extruder.

It is also possible that one or more of the thermoplastic polyolefine, the vulcanizable rubber, the curing agent or the additives are fed in whole or in part at a place downstream in the extruder.

Log in to Wiley Online Library

If the thermoplastic polyolefine, the vulcanizable rubber, the curing agent and the customary additives are fed at different places, the vulcanizable rubber and a part of the thermoplastic polyolefine are dosed in the entry port of the extruder together with the additives and mixed. After the vulcanizable rubber, the thermoplastic polyolefine and the additives have been properly dispersed, the curing agent and additional thermoplastic polyolefine may be added.

It is also possible to add additional extender oil, plasticizer, colorants, thermoplastic polyolefine or curing agent at another entry port located in about the middle of the extruder. The present invention further relates to the use of the dynamically vulcanized thermoplastic elastomer in sealing systems, building profiles or extrusion applications.

The present invention also relates to articles comprising the dynamically vulcanized thermoplastic elastomer. These articles may be applied in cars, equipment and constructions. Examples hereof are airbag covers, fuel lines, hoses, dashboard foils, spoilers, mud flaps, seals, boots and strips.

Thermoplastic Elastomers (TPE) vs. Liquid Silicone Rubber (LSR)

The invention will be elucidated by means of the following examples and comparative experiments without being limited thereto. The throughput was varying from. All the indicated raw materials were added on a hopper except 40 parts of oil which were injected in the extruder, after the dynamic vulcanization had been started. The properties of the dynamically vulcanized thermoplastic elastomers were analysed on injection moulded parts. Different properties were analysed;. The diffuse reflectance from the surface is measured by filling a cup with pellets and the measurements taken when the instrument looks up into the cup from the bottom surface.

Thermoplastic Elastomers: a Comprehensive Review , Ed. Legge, G. Holden, and H. Schroeder Carl Hanser Verlag, Munich, Google Scholar. Naderi, P.


  • CYA Securing IIS 6.0. Cover Your A** by Getting It Right the First Time.
  • Untitled Document.
  • Music for the Royal Fireworks, No. 2: Bourree - Score.

Lafleur, and C. Dubois, Polym. CrossRef Google Scholar. Esmizadeh, G. Naderi, and M.

Navigation menu

Ghoreishy, J. Naderi, M. Ghoreishy, and G. Bakhshandeh, Iran. Li, Y.

Zhang, and Y. Zhang, J. Guo, Y. Cao, D. Jia, and Q. Qiu, Macromol. Ismail and Suryadiansyah, Polym. Karger-Kocsis, L.

Rubber technology - Wikipedia

Ramarad, M. Khalid, C. Ratnam, A. Luqman Chuah, and W. Rashmi, Prog. Nakason, M. Jarnthong, A. Kaesaman, and S. Kiatkamjornwong, Polym.

Humphreys Smithers Rapra Technol. Ltd, London, , Vol. Hajibaba, G. Naderi, E. Esmizadeh, and M. Drobny, Handbook of Thermoplastic Elastomers , 2nd ed. William Andrew Inc. Mirzadeh, P. Lafleur, M.

Supplementary files

Kamal, and C. Liu, F. Chen, B. Liu, G.