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Metallized Polyimide Films


Development of Technology of Electra- and Heatconductive Metallized Polyimide Constructs with High Reflectivity

Tech Area / Field

  • CHE-POL/Polymer Chemistry/Chemistry
  • MAT-ELE/Organic and Electronics Materials/Materials
  • PHY-SSP/Solid State Physics/Physics

8 Project completed

Registration date

Completion date

Senior Project Manager
Ryzhova T B

Leading Institute
Institute of Chemical Sciences, Kazakstan, Almaty

Supporting institutes

  • Sukhumi Institute of Physics and Technology, Georgia, Tbilisi\nKazakh National University, Kazakstan, Almaty


  • Universite Montpellier / Laboratoire d'Etude des Materiauux Polymeres, France, Montpellier

Project summary

    The project is directed on the development of the metallized polyimide films obtaining technology (with metals: silver, cobalt, nickel, platinum, gold, palladium), which could find their use as collectors and light reflectors for accumulation and solar energy transmission, antennas, antiradar shielding and also as chips for microelectronics. Kazakh-American JSC «KK Interconnect» has taken interest in the further development of the product. That is a unique opportunity for Kazakhstan to develop the national economy through new products and advanced technologies.
    New non-traditional methods of non-traumating polyimide metallization (metalls: silver, cobalt, nickel) are being developed at the Institute of Chemical Sciences in the laboratory of polymer synthesis. This enables to avoid expensive technologies and obtain polyimide films with durable and non-removable coatings of both sides of the metal. The developed technique does not require passivation of metal layers itself, because loaded metals is physically chelated between imide chains after the final thermal annealing. Crystallity, homogenous structure and thickness (several microns) of the coating responses to its heat and electrical conductivity. The formed coatings represent primary mirror surface with high reflection coefficients in visible and IR ranges of spectra (up to 98% relative to silver mirror at normal angle of light incidence). The development of the new technology, modeling of the new metallization parameters including monomers reactivity, investigation of physical and chemical peculiarities of heterogeneous reaction allows to obtain prompt and technically the non-complicated metallized films of different sizes on the basis of industrial polyimides (Kapton, DuPont, USA; Upilex, Ube Corp. Japan; PM Russia). Metallized polyimide films by the developed technique is thermally stable and non-laminated product with metal electroconductivity and reflectivity in wide temperature range up tp 350-400C.
    New direction in the field of polyimide materials to create the new composit constructs with discreet distribution of metallized phase in polyimide matrix will be developed in the project as well. There will be obtained and investigated polyimide mixtures with different polymers that are of high compatibility and similar in thermal- life characteristics. Subsequent chemical metallization of that polymer-polymer blends of certain surface morphology enables to considerably increase the content of the metal without loss of mechanical qualities. Also it would be possible to vary the physical and chemical-physical properties of composites in wide ranges. Results of the preliminary investigations allow to correlate the optic (reflection-sorption) and electrical-physical properties (conductivity, electric capacity) of ultimate metallized composites with structure and morphology of original polyimide-polymer mixtures.
    With aiming to recommend the metallized films (with silver, cobalt, nickel) applying in the open space at low-earth orbit the stability attributed to atomic oxygen will be increased under mild conditions by the way of the electrochemical deposition of thin coatings of precious metals: gold, platinum, palladium and radium). To introduce the developing metallized films with metallized phase surface distribution as reflectors and collectors, antennas for space apparatus it is necessary to carry out a whole series of works on determination of the open space effecting (different types of radiation, abrasive factors) upon their structure and properties. Thus, the object of this project is development of the new technology of non-traumatic polyimide films metallization as well as foundation of coatings on the basis of polyimides and their macromolecular blends for the purpose of obtaining of constructs with mirror surface of high electric and heat conductivity. All the works on formation of thermally stable metallized polyimide films will be accomplished in the laboratory of polymer synthesis (ICS); the Center of physical-chemical analysis (KazNU) will carry out the electrochemical part of the works. Jointly they plan to invesigate the ways of surface passivations, including transparent polymer coatings and electrochemical deposition of noble metals. The investigations of optic properties and electric conductivity of the films on the basis of polyimide blends with metal coatings obtained both by chemical metal incorporation (ICS) and electrochemical deposition of metal layer (KazNU) will be implemented at the Physics Department of solid state (KazNU). Besides, it is planning to study microscopic phenomena in metallized polyimide films as well as formation of microfissures and imperfections appeared from metal layer distribution (The subcontractor – solid state physics department of the Moscow State Pedagogical University). Studying of the influence of radiating and electromagnetic emission that is the model of space effects upon metallized polyimide films (National Aerospace Committee of RK and Sukhumi Institute of Physics&Technology - SIPT) is of extreme importance as well as computer stimulation of metallization kinetics and structure of metallized polyimide films (JSC“KK Interconnect”), assistance for the preparation of techlogical documentation (Nanophase Center, Texas Univ., USA), and moulding and filming of polyimide films (Provence Aix-Marseille University, France). The structure of all metallized composit constructs will be investigated by modern methods of physical analysis jointly with Collaborator of the project Prof. M.Abadi (University Montpellier II, France), as well as physico-mechanical properties. The final results of the project will be led to develop large-scale metallized polyimide films for a solar light collector as well as flexible chips based on polyimide films with discreetly placed metallized layers.


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