Composites Base on Geopolymer Matrices: Preliminary Fabrication, Mechanical Properties and Future Applications

Abstract. Geopolymer matrice Composites are fabricated at room temperature or thermoset in a simple autoclave. After approximately four hours of curing, composite materials exhibit excellent properties. Finding applications of geopolymeric composites in all fields of industry are the hot topics. This paper covers: (i) mechanical properties of fibers: carbon, Saint-Gobain Cemfil/CFV alkali resistance glass (various types), ARG-NEC (Nippon electric Columbia) alkali resistance glass, Eglass for pultrusion, AR glass for pultrusion were evaluated in accordance with Japanese Industrial Standard (JIS R 7601). (ii) properties of geopolymeric matrices: geopolymeric matrices are fabricated from various types of geopolymeric resins that were made at Research Institute of Inorganic Chemistry, Inc., Czech Republic and testing for mechanical properties, and by SEM for structure characterization. (iii) fabrication procedures of geopolymer matrix composites with carbon and other fiber reinforcements. (iv) results of mechanical testing of geopolymer composites, SEM for adhesion between the matrix and reinforcement, and (v) Results and discussion

Composites Base on Geopolymer Matrices: Preliminary Fabrication, Mechanical Properties and Future Applications

Abstract. Geopolymer matrice Composites are fabricated at room temperature or thermoset in a simple autoclave. After approximately four hours of curing, composite materials exhibit excellent properties. Finding applications of geopolymeric composites in all fields of industry are the hot topics. This paper covers: (i) mechanical properties of fibers: carbon, Saint-Gobain Cemfil/CFV alkali resistance glass (various types), ARG-NEC (Nippon electric Columbia) alkali resistance glass, Eglass for pultrusion, AR glass for pultrusion were evaluated in accordance with Japanese Industrial Standard (JIS R 7601). (ii) properties of geopolymeric matrices: geopolymeric matrices are fabricated from various types of geopolymeric resins that were made at Research Institute of Inorganic Chemistry, Inc., Czech Republic and testing for mechanical properties, and by SEM for structure characterization. (iii) fabrication procedures of geopolymer matrix composites with carbon and other fiber reinforcements. (iv) results of mechanical testing of geopolymer composites, SEM for adhesion between the matrix and reinforcement, and (v) Results and discussion

Influence of Plasma Treatment on the Flexural Properties of Geopolymer Composites

รายงานการวิจัย--มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2553In recently years, geopolymer or polysialate composites have been developed and applied for a variety of fields. They are known as inorganic matrices composites, which are fabricated and cured at room temperature or thermoseted in a simple autoclave. Geopolymer composites provide an excellent opportunity for achieving the goal of producing low cost high temperature resistant composite. The aim of this study is an investigation and comparing the flexural properties of geopolymer composites after reinforcements were influenced by plasma treatment with original fibre fabric. And preliminary results of the improvement in tensile strength, Young’s modulus, elongation of E-glass fibre fabric due to plasma treatment are studied in this paper. Many reinforcements and geopolymer matrices are now available, but our works are focused on geopolymer composite Q17, Q13K-1 combination with E-glass fibre fabric which was investigated, fabrication procedures together with their specific properties of these materials have been evaluated, compared and discussed.Rajamangala University of Technology Phra Nakho

Mechanical Properties of Silica-Based Geopolymer Composites Cured at Ambient Conditions in Accordance with Size-Independent Method

รายงานการวิจัย--มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2553In this paper, silica-based geopolymer matrix reinforced composites containing approximately 35, 50 or 55 wt.% of carbon (HTS 5631 1600tex 24K, TohoTenax), advanced basalt (BCF13-2520tex KV12 Int, Basaltex) or electrical grade glass (E-glass: E2400P192, Saint-Gobain, Vetrotex) roving fibers respectively were synthesized and fabricated at ambient conditions. The flexural properties of the resulting composites which are high toughness: the shear stress plays here a greater role in compared with other ceramic matrix composites were determined on a universal testing machine under three-point bending mode in accordance with novel size-independent method which based on testing specimens at different scale of sample height (H) to span length (L) ratios; The basic principles of the new size-independent approach are presented as well. Microstructures of composites were analyzed by means of scanning electron microscope (SEM) on perpendicular sections, the images show the adhesion between the fibers and geopolymer matrix are very good, and micro-cracks on both cross-sections and surfaces of geocomposites are determined as inborn defects of inorganic matrix composites.Rajamangala University of Technology Phra Nakho