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Development of environmentally-friendly plasticized poly (vinyl chloride)-based flooring formulations.

机译：环保型增塑聚氯乙烯地板配方的开发。

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The research aim is to develop alternative cost-effective poly (vinyl chloride) PVC formulation that possesses good mechanical properties, resistant to microbial attack, with low volatile organic compounds (VOC's) emission, as well as to explore a market for lignin, an abundant natural polymer, obtained as a by-product of paper making.; One of the main applications of plasticized PVC for building industry is the production of flooring. Normally in the manufacture industry of the PVC flooring di-ethyl-hexyl-phthalate (DEHP), commercially known as DOP is used as a plasticizer to facilitate the processing of PVC. DOP is environmental pollutant due to its biodegradability that consequently releases VOC's; considering this hazard, the introduction of other biopolymers and other additives in PVC formulation could contribute to a safer and healthier environment. DOP has been used in this research for comparative purpose only.; Series of plasticized PVC formulations were prepared with different types of plasticizers namely: Di-octyl phthalate (DOP), Diethylene glycol dibenzoate (Benzoflex 2-45), Tricresyl phosphate (Lindol) and Alkyl sulfonic acid phenyl ester (Mesamoll). Meanwhile, the role of lignin within the mixtures was evaluated, as part of the PVC was replaced with different lignins namely Organosolv, Indulin and Tomlinite (20 phr of PVC).; The new proposed alternative flooring material was prepared by melt mixing and compression molding, and tested to evaluate its processibility, thermal properties, mechanical properties (i.e., Young's modulus, tensile strength at break and yield, elongation at break) as well as its morphology.; In addition, the different formulations resistance to fungi attack was studied as a function of the samples weight loss, and their fungal growth was evaluated visually. Also, the impact of this growth on the mechanical and thermal properties of the different presented formulations was studied to evaluate their bio-deterioration.; Moreover, considering the introduction of new formulations, their ageing behavior due to inherent instability of the amorphous glassy state, known as volume recovery or structural relaxation is studied.; Finally, the primary emissions (i.e., free non-bound VOC's, which generally have low molecular weight) of VOC's are identified and quantified.
机译：该研究的目的是开发具有成本效益的聚氯乙烯PVC替代产品，该产品具有良好的机械性能，耐微生物侵袭，挥发性有机化合物（VOC）排放量低，并为木质素市场提供了广阔的市场。天然聚合物，是造纸的副产品。增塑PVC在建筑行业的主要应用之一是地板的生产。通常，在PVC地板的邻苯二甲酸二乙基己基邻苯二甲酸酯（DEHP）的制造行业中，使用商业上称为DOP的增塑剂来促进PVC的加工。 DOP具有生物降解性，因此会释放VOC，因此是环境污染物。考虑到这种危害，在PVC配方中引入其他生物聚合物和其他添加剂可能有助于营造更安全，更健康的环境。 DOP仅在本研究中用于比较目的。用不同类型的增塑剂制备了一系列增塑的PVC配方，分别是：邻苯二甲酸二辛酯（DOP），乙二醇二苯甲酸酯（Benzoflex 2-45），磷酸三甲酚酯（Lindol）和烷基磺酸苯基酯（Mesamoll）。同时，对木质素在混合物中的作用进行了评估，因为部分PVC被不同的木质素，即Organosolv，Indulin和Tomlinite（20 phr PVC）代替。新提出的替代地板材料是通过熔融混合和压缩成型制备的，并经过测试以评估其可加工性，热性能，机械性能（即，杨氏模量，断裂拉伸强度和屈服强度，断裂伸长率）及其形态。 ;此外，研究了不同制剂对真菌侵害的抗性与样品重量减轻的关系，并目测了它们的真菌生长。同样，研究了这种增长对不同配方的机械性能和热性能的影响，以评估其生物降解。此外，考虑引入新配方，研究了由于非晶态玻璃态固有的不稳定性而引起的老化行为，即体积恢复或结构弛豫。最后，确定并量化了VOC的主要排放量（即，游离的，未结合的VOC，通常分子量较低）。

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