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首页> 外文期刊>Journal of Polymers and the Environment >Fabrication and Properties of a Novel Porous Material from Biopolymer and Natural Rubber for Organic Compound Absorption
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Fabrication and Properties of a Novel Porous Material from Biopolymer and Natural Rubber for Organic Compound Absorption

机译：来自生物聚合物和天然橡胶的新型多孔材料的制造与性质，用于有机化合物的吸收

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Maleate poly (vinyl alcohol) (PVAM)-graft water soluble polymer with deproteinized natural rubber (DPNR) porous materials were prepared using the freeze drying technique. The effect of the water soluble polymer type (chitosan (CS) and gelatin (GT)) and the DPNR content was studied. The mechanical properties of the porous materials were improved by the addition of the DPNR. The results showed that the addition of the DPNR improved the water resistance of the porous material. Many micro-voids were formed after the PVAM was grafted with the water soluble polymers as observed under SEM, leading to changes in porosity and density. The highest number of micro-voids was found in the PVAM-graft-chitosan (sPVAM-g-CS) sample while the minimum number of microvoids was found in the maleate poly (vinyl alcohol) (sPVAM). The swelling ratio of the nPVAM significantly improved after the freeze drying process. The PVAM-graft-gelatin (sPVAM-g-GT) gave the maximum swelling ratio in water. After the DPNR was added to the sPVAM-g-GT, the pore size of the porous material significantly decreased and the size distribution became narrower. The moisture absorption, moisture content and swelling ratio of the porous material decreased after blending with the DPNR but the tear strength and rebound resilience of the porous material was enhanced. The macroporous material was able to be reused the maximum number of over 30 times as organic compound-absorbent material and it easily decomposed in nature.
机译：使用冷冻干燥技术制备马来酸多（乙烯醇）（PVAM） - 移植物水溶性聚合物，具有脱蛋白天然橡胶（DPNR）多孔材料。研究了水溶性聚合物型（壳聚糖（Cs）和明胶（GT））和DPNR含量的影响。通过添加DPNR改善多孔材料的机械性能。结果表明，DPNR的添加改善了多孔材料的耐水性。在PVAM接枝在SEM下观察到的水溶性聚合物接枝PVAM后形成许多微空隙，导致孔隙率和密度的变化。在PVAM-移植物 - 壳聚糖（SPVAM-G-CS）样品中发现了最多的微空隙，而在马来酸盐聚（乙烯醇）（SPVAM）中发现了最小数量的微毒性。冷冻干燥过程后，NPVAM的溶胀比显着改善。 PVAM-移植物 - 明胶（SPVAM-G-GT）在水中产生了最大溶胀比。将DPNR加入到SPVAM-G-GT后，多孔材料的孔径显着降低，尺寸分布变窄。与DPNR混合后，多孔材料的吸湿性，水分含量和溶胀比率降低，但是增强了多孔材料的撕裂强度和反弹弹性。大孔材料能够重复使用最大数量超过30倍，作为有机化合物吸收材料，并且容易本质上分解。

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