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Introduction Polyurethane materials have been generally used in the automobile, paint, furniture, and textile industries and also in biomass foam incorporated with renewable raw materials[1~3].Waterborne polyurethanes(WPU), as non-toxic and non-flammable materials, have been abundantly used as environmental friendly coating and adhesives show an excellent range of properties[4].However, under solid content remaining unchanged, drying rate of waterborne polyurethanes(WPU) is slower than that of solvent-based polyurethanes due to latent heat of evaporation of water is higher than one of organic solvent,which can not meet fast-paced modern production line of requirement.
Experimental Materials The diisocyanate used was toluene diisocyanate (IPDI, 98% purity, supplied by Shanghai Chemical Co.
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Therefore, much research need to been done to improve the property of waterborne UV-curable polyurethane acrylate materials.
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All of the materials used can be categorized into two groups.
Fig. 4 shows the results of the low and high strength steel materials respectively. !
Results of low and high strength steel materials by three-point bending test Table 1.
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Fig.1 Specific properties of reinforcing materials Experimental Materials and procedures The short carbon fiber was used as reinforcement.
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Recycling of such wastes by incorporating them into building materials is a practical solution to the pollution problem.
Experimental Materials.
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Density of material is 7.8103kg/m3.
Acknowledgement This work is supported by the National Natural Science Foundation of China (Grant No. 50775130), by the Natural Science Foundation of Shandong Province of China (Grant No.
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In IOP Conference Series: Materials Science and Engineering (Vol. 518, No. 3, 2019, p. 032032)
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