EurekaMag.com logo
+ Translate

Effect of additives on radiation polymerization of impregnation compounds for the preparation of wood plastic materials


, : Effect of additives on radiation polymerization of impregnation compounds for the preparation of wood plastic materials. Drevarsky Vyskum (105): 19-29

In order to achieve a viscosity under 100 mPa/s the impregnation compounds in WPC must be diluted, for example, with MMA monomer. This addition, and also the addition of various chemicals used as surfactants, fire retardants and stains, will affect the kinetics of the radiation polymerization. The thermal polymerization peak is reduced by tenzid-type surfactants, the initiator 2,2'-azodiisobutyronitrile, and the fire retardant tris(2,3-dibromopropyl)phoshate.

(PDF 0-2 workdays service)

Accession: 001342221

Submit PDF Full Text: Here


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Related references

Piatrik, M.; Varga, S., 1974: Contribution to the radiation preparation of wood/plastic materials (1). Radiation-induced polymerization of styrene in preparation of wood/plastic combinations. (2) Possibilities of reduction of absorbing doses for the radiation polymerization of styrene/wood combinatiins. (3). Radiation-induced copolymerization of styrene and acrylonitrile in preparation of wood/plastic combinations. Reports studies on the polymerization of styrene by gamma -irradiation in wood of Populus 'Marilandica' and Fagus sylvatica. (1). A dose of 40-50 Mrad was necessary for total polymerization of styrene. Undried wood and commercial styrene...

Kent, J.A.; E.A., 1966: Preparation of wood-plastic combinations using gamma radiation to induce polymerization. Topical report on impregnation of wood with acrylic monomers. A further report on this work . The investigations are concerned mainly with methyl methacrylate (MMA), the wood/plastic combination (WPC) showing most promise of commercial practicability. The wood used was mainly sapwood of Pinus taeda and P. st...

Garratt, P.; Hoigne, J.H.etman, J.; Hess, W., 1972: Preparation of wood-plastic composites by impregnation with vinyl ester monomer combinations and polymerization with gamma radiation. Describes an investigation of wood/plastic composites of relatively low cost prepared with co-monomers of vinyl acetate and vinyl esters of branched monocarboxylic acids. This monomer combination requires a lower radiation dose than other commonly...

Czvikovszky, T., 1968: Wood-plastic combination by monomer impregnation and radiation polymerization. A comprehensive survey based on world literature and on experimental work by the author, covering all the main aspects of radiation polymerization in wood, the processing, properties and economic possibilities of wood/plastic combinations, the mer...

Czvikovszky, T., 1967: Wood/plastic combinations by impregnation with monomers and polymerization by radiation. Reviews world literature on various aspects (technology, economics, properties and uses, etc.) of radiation polymerization of one or two monomers, polymerization with the aid of catalysts, and the effects of radiation on wood. Accounts are also gi...

Yamashina, H.; Kawakami, H.; Nakano, T.; Taneda, K., 1978: The effect of moisture in wood upon impregnation, polymerization and dimensional stability in the production of wood-plastic composites. Basswood [Tilia japonica], maintained under 5 different RH conditions, was impregnated with methylmethacrylate (MMA), MMA with 10% polar monomeric 2-hydroxyethylmethacrylate (HEMA), or a mixture of unsaturated polyester styrenes (UPS). With MMA an...

Kent, J.A.; Winston, A.; Boyle, W.R., 1963: Preparation of wood-plastic combinations using gamma radiation to induce polymerization; effects of gamma radiation on wood. Annual report: November 1, 1961 to October 31, 1962. Reports on investigations carried out on behalf of the Division of isotopes Development, U.S. Atomic Energy Commission, covering the following: (1) physical testing of wood/polymer combinations; (2) impregnation of wood with monomers; (3) chemical...

Garratt, P.G.; Hoigne, J.; Heetman, J.G.; Hess, W., 1972: Preparation of wood-plastic composites by impregnation with vinyl ester monomer combinations and polymerisation with gamma radiation. Describes an investigation of wood/plastic composites of relatively low cost prepared with co-monomers of vinyl acetate and vinyl esters of branched monocarboxylic acids. This monomer combination requires a lower radiation dose than other commonly...

Kent, James, A., 1965: Preparation of wood-plastic combinations using gamma radiation to induce polymerization

Pullmann, M.; Jokel, J., 1977: Dimensional stabilization of wood with synthetic polymer in wood/plastic combinations. 2. Effect of system components of impregnated wood on the radiation polymerization of MMA. The polymerization in model systems was accelerated by polar liquids (methanol/water), especially in a water emulsion, and was retarded by dioxane lignin or benzene/alcohol extractives; beech holocellulose or surfactants had little effect on the p...