Technology of 7 accept rice applies mediumly in colophony of not saturated polyester
Accept rice (Nanometer) is unit of measurement of a length, 1nm is equal to billion 1/0 meters (10-9m) . Make an example, the object of 1nm is put on the ping-pong, put on the earth like a ping-pong general. From the point of the structural unit of material, the particle Jie Yuhong of accept rice measure watchs the intermediate domain of material and microcosmic atom, element. Bureau region sex of material and tremendous surface and its quanta effect, interface effect make a lot of function of material produce qualitative change, present an a lot of both neither to observe an object with Yu Hong, also be different from individual and isolated atomic curious phenomenon. Accept rice material learns the main branch that is accept rice science and technology. Polymer Jinami composite material learns in material of whole accept rice in have important place, it is successive photograph with high polymer matrix, its have one dimension to be less than 100nm at least in dispersive photograph. Compare with traditional composite material photograph, the interfacial interaction between the accept rice effect that brings as a result of accept rice particle and accept rice particle and matrix, make composite material of accept rice polymer has more special superior performance than groovy polymer composite material. The polymer that studies domestic and internationally at present composite material presses Jinami dispersive photograph divides accept rice to basically have two kinds big: One kind is to add filling of accept rice class directly (particle of rigid accept rice) modified polymer; Another kind is a shape polymer of dispersive photograph modified, with grain of shape of micron class layer, the polymerization in matrix or the layer record unit that in machining a process, make micron grain medium come off accept rice class disperses, form accept rice thereby composite material. From this, material of generation accept rice also basically has two kinds of kind in application of resinous of not saturated polyester: It is colophony of not saturated polyester composite material of particle of rice of one rigid accept; 2 it is colophony of not saturated polyester - layer shape silicate accept rice composite material. Colophony of not saturated polyester - composite material of particle of rigid accept rice is the material of shape of accept ground rice that handles the course commonly it is dispersedly directly in the colophony of not saturated polyester of condition of dissolve / frit. How to make particle of rigid accept rice with reuniting the configuration of body arrives dispersedly equably in colophony of not saturated polyester, it is preparation accept rice the key of composite material. Use the finishing such as coupling agent normally, wait via ultrasonic treatment again those who make is sufficient dispersive, recycle becomes accept rice composite material. Be like with accept rice SiO2Modified is not saturated polyester colophony, when accept rice SiO2(The area that compare a list is 643m2When / G) joins a quantity to achieve quality mark to be 3 % , the stretch model volume of composite material can rise 5.26GPa by 3.76GPa. If use 0.2 % ~ ,coupling agent of alkyl of 0.3 % organic silicon handles accept rice SiO2, those who make is easier it is dispersedly in colophony, disperse via ultrasonic concussion again, get composite material of particle of rice of accept of tigidity of colophony of not saturated polyester. When accept rice SiO2Add a quantity to achieve quality mark to be 3 % ~ when 5 % . The wearability of material raises L ~ 2 times, mohs hardness is 2.8 ~ 2.9, adjacent at natural marble, its tensile strength raised 1 times above, thermal stability and anti-impact properties are good at the same time. If use the NDZ-101 coupling agent of 2 % to handle accept rice TiO2, make its are dispersedly in colophony of not saturated polyester again, the resin of not saturated polyester that gets - composite material of particle of rigid accept rice, its intensity, tenacity and acid-proof and alkalescent be able to rise. When accept rice TiO2join a quantity to be quality mark when 4 % , the integral performance beautiful of material, tensile strength raises 102 % , flexural strength to raise 184 % , rupture percentage elongation raises 125 % , impact strength to raise 120 % . Because accept rice is small bead surface drawback is big, blame conjugate atom is much, sex of exterior draw together is tall, produce tremendous surface and interfacial effect, reason is not saturated polyester colophony - composite material of particle of rigid accept rice is right of blow energy is assume jointly by phase boundary face dispersedly. Change when the bead diameter of particle on one hand Xiaoshi, active of the area that compare a list, surface increases, the possibility that produces physical union and chemical tie is large, the interface shouldered certain load, absorb a large number of concussion can; On the other hand, the bead way of rigid particle is small, stress concentration, can produce a large number of microgroove or small crackle, the development of these microgroove or small crackle needs to waste a large number of energy, be in consequently macroscopical on show the very strong result that add pliable but strong. When content of particle of rice of accept of Dan Gang sex is exorbitant, the L of matrix layer ply of not saturated polyester and colophony of not saturated polyester - the interfacial ply Li of particle of rigid accept rice produces the tenacity to composite material the effect. When 2Li