JPH0331358A - Frame-retardant self-leveling material - Google Patents

Abstract

PURPOSE:To obtain a self leveling material having high self leveling properties and flame retardance by blending a synthetic resin consisting essentially of an epoxy resin with light-weight aggregate and flame retardance imparter. CONSTITUTION:(A) a resin composition containing an epoxy resin (bisphenol A glycidyl type epoxy resin), curing agent (e.g. benzylethylenediamine), a reactive diluent (e.g. butyl glycidyl ether), etc., is blended with 10-100 pts.wt., preferably 20-50 pts.wt. light-weight aggregate (e.g. aluminosilicate-based balloon) having 10mu-1mm, Preferably 20-500mu (particle diameter and 0.2-3 apparent specific gravity, and (C) 1-100 pts.wt., preferably 30-80 pts.wt. flame retardance imparter, preferably aluminum hydroxide treated by coupling to give a flame-retardant self leveling material.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a synthetic resin self-leveling material applied to uneven floors of buildings, warehouses, etc.

[Conventional technology]

Conventionally, for leveling uneven floors, leveling materials made of inorganic materials such as gypsum or cement, and synthetic resin leveling materials mixed with lightweight aggregate such as silica-alumina balloons have been known.

[Purpose of the invention]

In recent construction situations, there is a high interest in and demand for fireproof performance of building materials, and the same applies to painted Song materials, which are the field of the present invention. Among the above-mentioned leveling materials, synthetic resin leveling materials are superior in terms of self-leveling effect, but it goes without saying that inorganic material-based leveling materials are superior in fire prevention performance.

The present invention was made in view of this background, and an object of the present invention is to provide a synthetic resin leveling material that has high self-leveling properties and flame retardancy.

[Means of rounding to achieve the purpose]

In order to achieve the above object, the synthetic resin-based flame retardant self-leveling material of the present invention uses an epoxy resin as the main component of the synthetic resin, and a lightweight aggregate and a flame retardant imparting agent are added and mixed therein. .

The above epoxy resins include bisphenol A type,
The epoxy resin is liquid at room temperature, such as bisphenol F type, and the curing agent is preferably an amine that is liquid at room temperature and hardens at room temperature, such as diethylenetriamine or triethylenetetramine.

It is more preferable to use a flame retardant epoxy resin such as a non-rogenated epoxy resin as the epoxy resin.

As a lightweight aggregate, the particle size is 100 microfron to Omi!
J meters and has an apparent specific gravity of 0.2 to 3.0, preferably one or two of the following:
More than 100,000 yen are used in combination.

Inorganic or organic hollow bodies such as glass balloons, silica balloons, silica alumina balloons, phenol balloons, and hiniritene chloride balloons, inorganic powders containing silica, alumina, magnesium oxide, calcium carbonate, etc., or foamed powders thereof. , or synthetic resin combinations containing metal powders, metal oxide powders, silica, alumina, and other inorganic fillers in metal plating bodies such as copper, aluminum, and nickel, and synthetic resins such as epoxy resins, polyester resins, and silicone resins. Such as the coating of objects. If the particle size of the lightweight aggregate is smaller than 10 microns, the chikuntropic properties of the resin composition will increase, resulting in poor leveling properties, while if it is too large, such as 1.0 mm, the finished surface appearance will be uneven. Hail is not good. Furthermore, if the specific gravity is too light, the aggregate will float to the surface of the resin composition, whereas if it is too heavy, it will settle, resulting in a lack of storage stability of the resin composition. Therefore, from the viewpoint of construction and storage stability, the particle size of the lightweight aggregate is preferably 20 to 500 microns, the specific gravity is approximately ±30% of the specific gravity of the synthetic resin as the main component, and the weight of the synthetic resin is 100%. 10 for part
~100 parts by weight are added, preferably 20 to 50 parts by weight.

As the flame retardant imparting agent, a commercially available flame retardant for synthetic resins such as phosphorus compound type, halogen type, antimony dioxide, aluminum hydroxide etc. is appropriately selected, preferably 1 to 100 parts by weight per 100 parts by weight of the above synthetic resin. is added in an amount of 30 to 80 parts by weight. The flame retardant agent is preferably treated with a coupling agent to improve compatibility and wettability with the synthetic resin, and aluminum hydroxide is preferably selected from the viewpoint of smoke reduction effect. preferable.

Other additives include antifoaming agents, surfactants, colorants, fillers such as silica powder, reactive diluents such as butyl glycidyl ether, 0-cresyl glycidyl ether, p-tert butylphenyl glycidyl ether, DOP, D.B.
Non-reactive diluents such as P, benzyl alcohol, and high boiling point hydrocarbon compounds are added and mixed as necessary.

〔Example〕

65 parts by weight of a bisphenol A glycidyl ether epoxy resin with an epoxy equivalent of 190 as an epoxy resin and 25 parts by weight of benzylethylenediamine as a hardening agent are added with 1 part of a reactive diluent, butyl glycidyl ether.
Aluminosilicate with a particle size of 150 microns and an apparent specific gravity of 0.7 as a lightweight aggregate was added to a resin composition to which 0 parts by weight, 0.2 parts by weight of a silicone antifoaming agent, and 0.5 parts by weight of a fluorosurfactant were added. 30 parts by weight of a titanate-based balloon, 30 to 60 parts by weight of silane-coupled aluminum hydroxide with a particle size of 45 microns as a flame retardant imparting agent, and hexabromobenzene and antimony trioxide in a mixing ratio of 1:2. The combustible self-leveling material of the present invention is obtained by adding 6 to 10 parts by weight of a coupled composite flammable agent.

Table 1 shows the properties of the flame-retardant self-leveling material of Examples according to the component ratios, and the component ratios and properties of a comparative example in which no flame retardant imparting agent is added to the resin composition.

Table 1 Component ratio and properties of self-leveling materials *2 Flow value: Based on the flow value section of self-leveling materials in the special common specifications published by the Housing and Urban Development Corporation Flammability: Based on the JIS K 7201 oxygen index method of polymer materials Release based on the combustion test method [Effect] The leveling material of the present invention exhibits the self-leveling properties of a conventional synthetic resin system to which no flame retardant imparting agent is added. In addition, this leveling material has the advantage of being lighter than inorganic leveling materials because it is made of synthetic resin.
It is lightweight, has high self-leveling properties, and has excellent combustibility, making it an excellent flooring material.

Claims (1)

[Claims] Synthetic resin whose main component is epoxy resin has a particle size of 10
Micron ~ 1.0 mm, apparent specific gravity 0.2 ~
A flame retardant self-leveling material characterized by containing a lightweight aggregate of 3.0 and a flame retardant imparting agent.