CAJ | 학술논문

以凤眼莲为原料，解决凤眼莲大量繁殖却难以有效利用的问题，从而降低环境负荷，变废为宝。通过对凤眼莲的二次破碎，混合添加了安全环保的3种胶黏剂（骨胶、瓜尔胶、海藻酸钠）和1种防水剂（乳化石蜡），热压温度和压力分别在160℃和5 MPa的条件下，成功制备了可应用于内包装的环保型生物质包装材料，为了验证材料的力学性能和防水性能，并对材料进行了三点弯曲试验测试其弯曲强度和弹性模量，计算接触角测试了其防水性能。结果表明，添加助剂的生物质包装材料其强度和防水性能都有大幅提高。其中，添加瓜尔胶和海藻酸钠制备的生物质板材力学性能较好，平均破坏应力可达到32.54和44.05 MPa；平均弹性模量分别为3.69和4.77 GPa。未添加助剂的生物质复合包装材料不具有防水性能，其接触角不可测；添加防水剂乳化石蜡的材料均具有一定的表面防水性能，其接触角基本上都大于100°。因此可见，防水剂乳化石蜡的添加可以充分改善材料的防水性能，并且根据材料的力学性能和防水性能可知，乳化石蜡适合和本研究中3种胶黏剂的共同使用。利用凤眼莲制备的生物质复合包装材料是绿色环保材料，废弃后无污染，便于回收与利用，是可自然降解的环境友好型包装材料，在代塑、代木运输包装、食品和农林牧副产品的内包装等方面具有广泛的应用前景。符合绿色化学的宗旨和国家可持续发展的战略方针。
이봉안련위원료，해결봉안련대량번식각난이유효이용적문제，종이강저배경부하，변폐위보。통과대봉안련적이차파쇄，혼합첨가료안전배보적3충효점제（골효、과이효、해조산납）화1충방수제（유화석사），열압온도화압력분별재160℃화5 MPa적조건하，성공제비료가응용우내포장적배보형생물질포장재료，위료험증재료적역학성능화방수성능，병대재료진행료삼점만곡시험측시기만곡강도화탄성모량，계산접촉각측시료기방수성능。결과표명，첨가조제적생물질포장재료기강도화방수성능도유대폭제고。기중，첨가과이효화해조산납제비적생물질판재역학성능교호，평균파배응력가체도32.54화44.05 MPa；평균탄성모량분별위3.69화4.77 GPa。미첨가조제적생물질복합포장재료불구유방수성능，기접촉각불가측；첨가방수제유화석사적재료균구유일정적표면방수성능，기접촉각기본상도대우100°。인차가견，방수제유화석사적첨가가이충분개선재료적방수성능，병차근거재료적역학성능화방수성능가지，유화석사괄합화본연구중3충효점제적공동사용。이용봉안련제비적생물질복합포장재료시록색배보재료，폐기후무오염，편우회수여이용，시가자연강해적배경우호형포장재료，재대소、대목운수포장、식품화농림목부산품적내포장등방면구유엄범적응용전경。부합록색화학적종지화국가가지속발전적전략방침。
With the increase in industrial activity and the modernization of society, large quantities of waste (both solid and liquid) flow into rivers, which cause eutrophication to take place. As a result, a huge amount of algae develop and cause pollution and environmental degradation. Unusual proliferation of algae may induce the disruption of natural ecosystems, insufficient oxygen in the seabed, and the destruction of scenery, as well as generate an awful smell. Moreover, with the development of a social economy, land resources are becoming increasingly scarce;therefore, much scientific research has focused on the world’s oceans and rivers in the search for new resources. In this study, a new method for producing biomass packaging material is proposed; using Eichhornia Crassipes based on the hot compression processing technology. The purpose of this study is to utilize the algae Eichhornia Crassipes to produce biodegradable biomass packaging material. Through structure and feature analysis of fiber, the refining technique of Eichhornia Crassipes is determined. The process of producing biodegradable biomass packaging material involves refining, adding additives, and compression molding and drying technologies. First, Eichhornia Crassipes is pulverized, and the long fibers are cut during refining. This changed the macromolecule fibers into microfibers, exposed more active hydroxy groups, and laid the foundation for physical adsorption. Second, the adhesives are added into pulverized Eichhornia Crassipes to increase performance of the biomass packaging material. Third, the materials are compressed with a hot presser. While preheating the mold and the materials, pressure is gradually applied. The hot press temperature and hot press pressure finally reach 160℃and 5 MPa, respectively, and the hot compression time is about 20 min. During the hot compression, another connection opportunity is obtained. Since the moist algae are primarily dehydrated, the water in the experimental material is pressed and the many exposed active hydroxyl groups in the cellulose are more active with the heat, which causes them to reunite with the hydroxy and hydro groups. Finally, Eichhornia Crassipes is dried in the hot presser, and the hot press temperature and hot press pressure have remained at 160℃and 5 MPa, respectively. In this study, three kinds of safety and environmental protection adhesives and a waterproof additive are employed. Technical evaluation shows that the produced biomass boards, which are added sodium alginate and guar gum, have high mechanical performance. Average rupture stresses of the biomass boards are 32.54 and 44.05 MPa, and average elastic moduli of the biomass boards are 3.69 and 4.77 GPa, respectively. Moreover, the biomass composite packaging material that is added to emulsion paraffin has good waterproof performance, and the contact angle is greater than 100°. This material produced by the method proposed in this study is a green environmental protection and degradable material. Its production, utilization, and disuse do not have negative impacts on the environment. Research on biomass packaging material makes waste resource reasonable to use and is in accordance with national sustainable strategy. Therefore, the biomass composite packaging board using Eichhornia Crassipes has a wide application prospect as a substitute for oil-based plastic materials in food packing containers, wood packaging transportation, food and farming products packaging, etc.