公开(公告)号：KR100836503B1

公开(公告)日：2008-06-09

申请号：KR1020070050917

申请日：2007-05-25

Applicant: 서강대학교산학협력단

Inventor： 최재봉 ,  최귀원 ,  이태수 ,  이문규 ,  김정구

IPC: C08J9/06 ,  C08J9/22

Abstract: A method for preparing a concave porous structure with a negative poisson's ratio is provided to produce the structure easily, and to control physical properties of the structure properly by changing the size, porosity, and shape of pores in the structure. A method for preparing a concave porous structure with a negative poisson's ratio includes the steps of: (S1) mixing salt particles with polyethylene particles, heating the mixture to attach the polyethylene particles to the salt particles, immersing the polyethylene-adhered salt particles in a brine to dissolve polyethylene-free parts, and drying the partially dissolved salt particles to prepare concave salt particles; (S2) mixing polymethyl methacrylate powder with the concave salt particles in a volume ratio of 2:8 to 4:6; (S3) mixing the mixture with a methyl methacrylate solution, and polymerizing the mixture; (S4) removing the concave salt particles from the polymers using distilled water; and (S5) drying the concave porous structure free of the concave salt particles.

Abstract translation: 提供一种制备具有负泊松比的凹形多孔结构的方法，以容易地制造该结构，并且通过改变结构中的孔的尺寸，孔隙率和形状来适当地控制结构的物理性能。 一种制备具有负泊松比的凹形多孔结构的方法包括以下步骤：（S1）将盐粒与聚乙烯颗粒混合，加热混合物以将聚乙烯颗粒附着到盐颗粒上，将聚乙烯粘附的盐颗粒浸入 盐水溶解不含聚乙烯的部分，并干燥部分溶解的盐颗粒以制备凹盐颗粒; （S2）将聚甲基丙烯酸甲酯粉末与凹盐颗粒以体积比为2:8至4:6混合; （S3）将混合物与甲基丙烯酸甲酯溶液混合，并使混合物聚合; （S4）使用蒸馏水从聚合物中除去凹盐颗粒; 和（S5）干燥没有凹盐颗粒的凹形多孔结构。