Abstract:
PURPOSE: Provided is a method for making an exfoliated nitro-polymer/silicate nanocomposite having a light weight and excellent thermal and mechanical properties by a simple process in a large amount. CONSTITUTION: The method for making an exfoliated nitro-polymer/silicate nanocomposite by an emulsion polymerization comprises the steps of: carrying out the emulsion polymerization of a monomer from which the nitro-polymer is formed and a non-modified layered silicate, in the presence of a reactive emulsifier having both a radically polymerizable vinyl group and a functional group having the affinity to the silicate. Preferably, the monomer is acrylonitrile.
Abstract:
PURPOSE: Provided is a production process of peelable polymer/silicate nano complex which peels silicate to be distributed into polymer uniformly and increase interaction between polymer and silicate so that it shows excellent mechanical property. CONSTITUTION: In producing polymer/silicate nano complex by emulsion polymerization, the production process of peelable polymer/silicate nano complex comprises the steps of: (i) mixing layered silicate and emulsifier with including a functional group having affinity to the layered silicate to form an initial particle; and (ii) using the initial particle and a stabilizer formed from monomer to complete emulsion polymerization.
Abstract:
The fiber or film of nylon or polyester having high strength and high elasticity is prepared by mixing the thermotropic liquid crystalline polymer having a softening lattice of formula (1) with the nylon based or polyester based matrix polymer. In the formula, A is -H, -CH3 OR -C(O)CH3; B is -Cl, -Br, -OCH3 or -OCH2CH3; K IS 4-12 as number of alkyl gp. of the softening lattic gp.; Y is ether or ester gp.; m is ave. polymerization degree and more than 2. The thermotropic liquid crystalline polymer is mixed more than 0.05 wt.%.
Abstract translation:具有高强度和高弹性的尼龙或聚酯的纤维或薄膜通过将具有式(1)的软化点阵的热致液晶聚合物与尼龙基或聚酯基基质聚合物混合来制备。 在该式中,A是-H,-CH 3 OR -C(O)CH 3; B是-Cl,-Br,-OCH 3或-OCH 2 CH 3; K IS 4-12为烷基gp的数量。 的软化谷氨酸 Y是醚或酯gp; m是ave。 聚合度大于2.热致液晶聚合物混合0.05重量%以上。
Abstract:
본 발명은 레졸형 페놀수지를 이용한 페놀수지-층상실리케이트 나노복합체의 제조방법 및 그로부터 제조되는 박리형 페놀수지-층상실리케이트 나노복합체에 관한 것이다. 본 발명에서는 수용성 레졸형 페놀수지 용액에 과량의 물을 가하여 수득한 고형의 레졸형 페놀수지와 변성 층상실리케이트와 혼련하고, 열처리하여 박리형 페놀수지-층상실리케이트 나노복합체를 제조하는 방법 및 그로부터 제조되는 페놀수지-층상실리케이트 나노복합체를 제공한다. 본 발명에 의하면, 변성된 층상 실리케이트와 페놀수지의 하이드록시기와 반응하여 층상 실리케이트가 완전히 박리되어 페놀수지 내로 분산되는 바, 적은 양의 실리케이트를 포함하면서도 현저하게 향상된 물성을 보이는 박리형 페놀수지-층상 실리케이트 나노복합체를 제조할 수 있게 되었다.
Abstract:
PURPOSE: A method for preparing a delaminating acrylate resin/layered silicate nanocomposite and a delaminating acrylate resin/layered silicate nanocomposite prepared by the method are provided, to enable a delaminating acrylate resin/layered silicate nanocomposite to be prepared by emulsion polymerization without substituting the polar surface of layered silicate having bad affinity to a polymer with a nonpolar organic compound. CONSTITUTION: The method comprises the steps of adding an acrylate resin monomer, an initiator and a reactive emulsifying agent to a layered silicate dispersion solution, and polymerizing the mixture to prepare a polymer; and adding a monomer to the polymer and post-polymerizing the mixture. Preferably the layered silicate is at least one selected from the group consisting of montmorillonite, hectorite, fluorohectorite and saponite; and the acrylate resin monomer is at least one selected from the group consisting of methyl methacrylate, methacrylate, methyl acrylate, butyl methacrylate, butyl acrylate and isooctyl acrylate. The content of the layered silicate in the nanocomposite is 0.1-10 wt%.
Abstract:
PURPOSE: Provided is a method for producing a phenol resin-layered silicate nanocomposite by using a resol type phenol resin and the phenol resin-layered silicate nanocomposite therefrom. CONSTITUTION: The method for producing a phenol resin-layered silicate nanocomposite by using a resol type phenol resin comprises the steps of adding water to a water-soluble resol type phenol resin solution to precipitate the resol type phenol resin, followed by drying the precipitation to obtain solid phenol resin; separately, absorbing a layered silicate with an absorbing compound for modification; and kneading the solid phenol resin with the modified layered silicate, followed by thermal treatment to obtain a phenol resin-layered silicate nanocomposite.
Abstract:
PURPOSE: Provided is a method for producing an exfoliated phenol resin-layered silicate nanocomposite having a terminal bonding structure and the exfoliated phenol resin-layered silicate nanocomposite therefrom. CONSTITUTION: The method for producing an exfoliated phenol resin-layered silicate nanocomposite comprises the steps of reacting an organic compound being capable of reacting a phenol resin and having a cation with a layered silicate to obtain a modified layered silicate; kneading the modified layered silicate and the phenol resin, followed by thermal treatment to obtain an uncured phenol resin-layered silicate nanocomposite; and adding a curing agent to the uncured phenol resin-layered silicate nanocomposite to obtain an exfoliated phenol resin-layered silicate nanocomposite having a terminal bonding structure.
Abstract:
PURPOSE: Provided is the preparation method of polyolelfin/clay nano complex which shows high mechanical property with the use of small amount of clay because polyolefin is inserted between the layers of the clay by enhanced compatibility between polyolefin and clay. CONSTITUTION: The preparation process includes the steps of: obtaining modified polyolefin by co-polymerizing or graft polymerizing with hydrophilic compound so that there are 0.1-10 wt. part of hydrophilic compound to 100 wt. part of polyolefin; obtaining separately modified layered clay with hydrophobic compound by hand blending or adding solution of hydrophobic compounds or itself to the suspension of clay, the wt. part ratio being 100 part of clay to 7-30 wt. part of hydrophobic compound and mixing 90-99.9 wt. part of the polyolefin and 0.1-10 wt. part of clay together.