CAJ | 학술논문

发泡聚乙烯等闭孔式缓冲材料通常通过裁切、黏合的加工方法制作成缓冲结构，裁切对气泡的破坏会影响缓冲结构的缓冲性能。针对该问题设计了2组试验，分析了裁切破坏式和刺穿破坏式2种气泡破坏方式对材料缓冲性能的影响，并与经典试验方法得到的缓冲性能曲线进行了对比分析。研究结果表明：裁切对发泡聚乙烯的刚度存在明显的尺度效应；2种气泡破坏方式都会对发泡聚乙烯的缓冲性能产生影响；试验验证显示，随着裁切次数的增加，4种方案的衬垫厚度差别较小，衬垫面积及材料用量相差较大，a, b方案的衬垫面积及材料用量较相近，c, d方案的衬垫面积及材料用量相对于a, b方案有较明显增加。
발포취을희등폐공식완충재료통상통과재절、점합적가공방법제작성완충결구，재절대기포적파배회영향완충결구적완충성능。침대해문제설계료2조시험，분석료재절파배식화자천파배식2충기포파배방식대재료완충성능적영향，병여경전시험방법득도적완충성능곡선진행료대비분석。연구결과표명：재절대발포취을희적강도존재명현적척도효응；2충기포파배방식도회대발포취을희적완충성능산생영향；시험험증현시，수착재절차수적증가，4충방안적츤점후도차별교소，츤점면적급재료용량상차교대，a, b방안적츤점면적급재료용량교상근，c, d방안적츤점면적급재료용량상대우a, b방안유교명현증가。
Closed-cell cushioning material, as expanded polyethylene, is usually shaped into cushioning structure by the processing method of cutting and adhesion. The damage to bubble by cutting would affect the cushioning properties of the material. Furthermore, the damage would affect the cushioning structure properties. A series of experiments are designed to analyze the influence of two different bubble damage ways (cutting damage type, piercing damage type) on the material cushioning properties, and contrasted with the cushioning properties curve result from classical experiment method. The results show that scale effect obviously exists in the material’s rigidity in the cutting damage type. The two kinds of bubble damage ways have influence on the cushioning properties of the expanded polyethylene. With the increase of cutting frequency, the four schemes demonstrate big differences in areas and volumes. The data of a and b schemes are similar, the data of c and d are significantly increased than other schemes.