5, the research of epoxy resin of modified of fill of particle of inorganic accept rice makes progress
The author is used mixed legal system to have in all composite material of epoxy resin of accept rice CB/ , studied different processing technique and CB add the effect that measures pair of material performance. Experimental result makes clear, with the composite material of pretreatment law preparation purer epoxy resin does not have too big change, reduce somewhat even; And use mechanical function has the composite material that joins law preparation directly to rise apparently, the function when should adding a quantity to be 2 ％ is best, tensile strength, flexural strength, impact strength, rupture percentage elongation achieves 82MPa, 107MPa, 20.0kJ/m2, 3.03 ％ respectively, raised 32.3 ％ , 10.3 ％ , 88.7 ％ , 39.6 ％ respectively than pure epoxy resin; Add the addition of the quantity as accept rice CB, the vitrification temperature of material also had very big rise, when its add a quantity to be 5 ％ , vitrification temperature raised 20 ℃ ; Accept rice CB is controlled in 20 Nm and dispersive and even.
Accept rice SiO2 presses its measure, belong to material of three-dimensional accept rice, namely accept rice particle. The research that fastens to this an organic whole basically is centered on mechanical function and hot property. Li Xiaobing mixed legal system to have in all through solution composite material of epoxy resin of accept rice SiO2/ . Experimental result makes clear, after classics ultrasonic is handled, accept rice SiO2 is equably dispersedly with the 2nd form that collects voice in epoxy resin matrix, inside certain limits, as the addition of dosage of accept rice SiO2, the mechanical function of composite material increases gradually, reach maximum when dosage is 3 ％ , impact strength rises to 19.04 KJ/m2 from the 8.5 KJ/m2 of pure epoxy resin, tensile strength increases 50.78 MPa from 38.95 MPa, rupture percentage elongation raises 2.56 ％ from 2.17 ％ . In addition, the heat-resisting function of composite material also gets ameliorative, when dosage of accept rice SiO2 is 3 ％ , its are initiative decompose temperature by pure resinous 270.2 ℃ raise 275.5 ℃ , increase when dosage for 5 ％ , raise 281.8 ℃ .
Accept rice TiO2 belongs to material of three-dimensional accept rice by its structure measure, as compound as EP have enhance the likelihood that increases pliable but strong. According to guild of Chinese epoxy resin (Www.epoxy-e.cn) expert introduces, its consider to involve mechanical function, hot property and solidify kinetic. The person such as NgC.B studied the property of composite material of epoxy resin of fill of accept rice TiO2: Accept rice TiO2, watch chloric alcohol is joined below 60 ℃ base in epoxy resin, after classics ultrasonic is handled, join 1, 3- inferior 2 amine regard phenyl as solidify agent. Compare to the composite material photograph of epoxy resin with the TiO2 fill of micron dimension, the composite material of accept rice fill compared the fatigue intensity of — of meet an emergency of pure annulus oxygen to raise 15 ％ , the epoxy resin that compares micron fill is tall also; Fighting the side that blow besmear, the epoxy resin that accept rice TiO2 adds presents a remarkable result.
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