High strength, acid‐resistant composites from canola, sunflower, or linseed oils: Influence of triglyceride unsaturation on material properties,Journal of Polymer Science

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High strength, acid‐resistant composites from canola, sunflower, or linseed oils: Influence of triglyceride unsaturation on material properties
Journal of Polymer Science ( IF 3.9 ) Pub Date : 2020-07-18 , DOI: 10.1002/pol.20200292
Claudia V. Lopez ₁ , Menisha S. Karunarathna ₁ , Moira K. Lauer ₁ , Charini P. Maladeniya ₁ , Timmy Thiounn ₁ , Edward D. Ackley ₁ , Rhett C. Smith ₁

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Here are reported composites made by crosslinking unsaturated units in canola, sunflower, or linseed oil with sulfur to yield CanS, SunS, and LinS, respectively. These plant oils were selected because the average number of crosslinkable unsaturated units per triglyceride vary from 1.3 for canola to 1.5 for sunflower and 1.8 for linseed oil. The remeltable composites show compressive strengths that increase with increasing unsaturation number from CanS (9.3 MPa) to SunS (17.9 MPa) to LinS (22.9 MPa). These values for SunS and LinS are competitive when compared with the value of 17 MPa required for residential building using traditional Portland cement. The plant oil composites are recyclable over many cycles and can retain up to 100% of strength after 24 hr in oxidizing acid under conditions where Portland cement is dissolved in under 30 min. Infusion of the composites into premade cement blocks affords them with significantly improved acid resistance as well. This work thus provides a simple, nearly 100% atom economical route to convert plant oils and waste sulfur to composites having enhanced performance over commercial structural materials.

中文翻译：

低芥酸菜籽油，葵花籽油或亚麻子油的高强度，耐酸复合材料：甘油三酸酯不饱和度对材料性能的影响

此处报道了通过将菜籽油，向日葵或亚麻籽油中的不饱和单元与硫交联分别制得CanS，SunS和LinS制成的复合材料。选择这些植物油是因为每个甘油三酸酯的可交联不饱和单元的平均数从低芥酸菜籽为1.3到向日葵为1.5，亚麻子油为1.8。可重熔复合材料的抗压强度随不饱和数的增加而增加，从CanS（9.3 MPa）到SunS（17.9 MPa）到LinS（22.9 MPa）。SunS和LinS的这些值与使用传统波特兰水泥的住宅建筑所需的17 MPa值相比，该产品具有竞争力。植物油复合材料可循环多次循环使用，并且在波特兰水泥在30分钟内溶解的条件下，在氧化酸中保持24小时后，强度可保持高达100％的强度。将复合材料灌注到预制水泥块中也使它们具有显着改善的耐酸性。因此，这项工作提供了一种简单的，接近100％的原子经济途径，可将植物油和废硫转化为比商业结构材料具有更高性能的复合材料。

更新日期：2020-07-18

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