JPH07116508A - Graphitic base material having humidity control function and its production - Google Patents

Abstract

PURPOSE:To obtain a flame retardant and non-combustible product by applying various grout material conventionally used as a water stop material and allowing it to integrally react with a graphitic powder obtained by using pitch as a main raw material. CONSTITUTION:The producing method is to obtain an optional foamed body by mixing the urethane based various grout material well-known as the grout material used for the water stop material regardless of water soluble or water insoluble with the graphitic inorganic material obtained by thermal synthesis at >=300 deg.C to 1500 deg.C and having powdery, fibrous or bead like shape and if necessary, various cements, allowing to integrally react, for example, to solidify and furthermore adding a foaming agent and the various products are obtained by the method.

Description

Detailed Description of the Invention

[0001]

[Industrial applications]

(1) The present invention is to utilize various polyurethane grout materials, which have been conventionally used only for applications such as ground reinforcement, in various fields.

(2) When a water-soluble polyurethane-based grout chemical solution is gelled or foamed and stabilized, it has the ability to react with environmental moisture and retain a certain amount of moisture. At the same time, by integrally reacting a graphitic inorganic substance known as nonflammable as a main component, a product for a wide range of applications with flame retardancy and nonflammability is produced to meet industrial demand.

[0003]

2. Description of the Related Art Various polyurethane grout materials used to be acrylic amide grout materials, which were the cause of environmental pollution accidents, and the use of various polyurethane grout materials was severely restricted by these effects. The mainstream was spring water generated during construction and diversion as a waterproof material for structures.

Moreover, the application development of various polyurethane grout materials which can instantly react with water to gel and foam has been extremely stagnant.

[0005]

[Problems to be Solved by the Invention]

(1) An object of the present invention is to realize a waterproof building material, a civil engineering article, and the like having a humidity adjusting function that has never been seen.

(2) Further, it is an object to realize a functional product which is imparted with flame retardancy and nonflammability, and has added bending strength and weight reduction.

(3) Further, in order to obtain a functional product which can be used for many years, it is an object to enhance antiseptic and insecticidal properties.

[0008]

[Means for Solving the Problems]

(1) To impart water functionality, a water-soluble polyurethane-based grout material was used as a gelling and foaming material.

(2) In order to reinforce excellent flame retardant and non-combustible functions, a graphite inorganic material obtained by a thermal synthesis reaction at 300 ° C to 1500 ° C is used as a main raw material, and the water-soluble polyurethane grout material is used. The integral reaction action of was used.

(3) In addition, coal-based creosote oil, which has been known for a long time, whether it is collected from natural trees such as hinokitiol, preservatives and insecticides obtained by synthesis are integrally reacted as auxiliary materials, and I decided to add the function of.

[0011]

[Action]

(1) The new material and processed product obtained by the present invention yield various structures having a humidity adjusting function which has never been seen and having a sufficient heat insulating effect.

(2) The new material obtained by gelling or foaming into a product by an integral reaction has an excellent flame retardant effect, and exhibits a moisture absorption and dehumidification action in response to environmental moisture, and various Has the action of combining antiseptic and insecticidal action.

(3) The new material according to the present invention has the function of reacting to the humidity of the environment by repeating the swelling and shrinking phenomena in the range of about 1 to 30% in response to the moisture absorption and dehumidification functions.

[0014]

[Examples] Material blending examples and manufacturing methods thereof. (1) NDI end prepolymer (grout material) with MDI and polyethylene glycol ether 1000 g (2) Graphite inorganic powder 1000 g (3) Cement 500 g (4) Calcium carbonate 500 g (5) Creosote oil 20 g (6) Hinokitiol 10 g (7) 1000 g of water In the above mixture, first, the prepolymer of (1) and the powder of (2) were mixed and stirred to prepare an A mixed solution. Separately, the materials (3) to (6) are mixed with water in (7) and stirred to prepare a B mixed solution. By mixing the B mixture with the A mixture and stirring the mixture rapidly, a gelling reaction occurs, and the humidity-controlled graphite material of the present invention is obtained. In addition, when the agitated mixed liquid is prepared in advance and poured into a designed mold (regardless of material), it is molded into a predetermined shape after the reaction and is easy to process.

[0015]

【The invention's effect】

(1) The new materials obtained in the examples had an excellent humidity adjusting function, and the various antiseptic and insecticidal components contained therein exhibited the effect of exerting their functions.

(2) According to the present invention, an effect of producing an environmental purifying effect on the soil of a building is produced. In the past, there was no material other than basic concrete to maintain the essential antiseptic and insecticidal properties on the ground, so this material is remarkable for buildings with an air cycle structure known as a method to take air from the basement of the building into the building It has a great effect.

(3) When a material having a humidity adjusting function is used as a building material on a wall surface or an upper floor, a constant humidity adjusting function is always exhibited, and it has been shown that the material has a heat retaining effect and a heat retaining effect. .

(4) The new material according to the present invention has an effect on the heat retention and heat retention function of graphite (carbons). Various processed products using this material also show the same effect.

(5) Since the new material according to the present invention contains a large amount of graphite component, the flame retardant effect is almost quasi-incombustible.

Claims (2)

[Claims] (1) Graphite inorganic powder or fibrous body obtained by thermally synthesizing an NCO-terminated prepolymer (grout material) with MDI or TDI and polyethylene glycol ether in the range of 300 ° C to 1500 ° C. Or mixed with foamed beads, various cements as a curable functional material, compounded with calcium carbonate, etc. Also, if necessary, various preservatives, insecticides, etc. can be mixed to obtain an integrated reaction, Graphite material with humidity control function and its manufacturing method, various building materials obtained by processing these materials, products for civil engineering goods, etc. (2) A method of manufacturing a foamed product for various building materials, civil engineering articles, etc. having a humidity adjusting function, which is obtained by mixing a foaming material into the manufacturing method of claim (1) and causing an integrated foaming reaction, and its processing. Product.