JPS59136348A - Thermosetting resin composition - Google Patents

Abstract

PURPOSE:The titled composition that is obtained by adding microcapsules containing at least one selected from fluorine resin, silicone resin and aliphatic hydrocarbons inside, thus showing good operability with markedly improved abrasion resistance. CONSTITUTION:A thermosetting resin is combined with 1-60wt%, based on the composition, of microcapsules including at least one selected from fluorine resin, silicone resin, and aliphatic hydrocarbons. As the thermosetting resin, is suitably used a cold-curable polyurethane or epoxy resin. The substance in the microcapsules is preferably liquid or grease at room temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thermosetting resin composition having excellent wear resistance.

Due to their excellent physical properties, thermosetting resins such as polyurethane resins and epoxy resins are used for flooring materials in factories, offices, etc., road surface materials for pedestrian walkways, etc., and protective lining materials for stone crushing plants, etc. However, in most cases, the reason for the need for reinstallation in these applications is damage due to wear, so it is desirable to improve the wear resistance and continue to demonstrate performance for as long as possible. .

The present inventors have completed the present invention as a result of intensive studies to improve the abrasion resistance of thermosetting resins.

That is, the present invention provides a composition containing microcapsules encapsulating at least one member selected from the group consisting of (a) a thermosetting resin and (b) a fluororesin, a silicone resin, and an aliphatic hydrocarbon compound. The content of the microcapsules is 1 to 60 weight! 1% of the thermosetting resin composition.

According to the composition of the present invention, the abrasion resistance of the cured thermosetting resin is significantly improved, and in addition, the workability in the above-mentioned applications is also improved.

In the present invention, any known thermosetting resin may be used as the thermosetting resin, but polyurethane resins or epoxy tree fertilizers that harden at room temperature are preferred from the viewpoint of speed of construction and physical properties.

The fluorocarbons contained in the microcapsules are also known as silicone resins, and the 13-alphaliphatic hydrocarbon complexes are also known, such as white petrolatum, grease, wax, etc., but at room temperature. It is preferably in liquid or grease form. These microencapsulations may be carried out by any known method.

The thermosetting resin composition of the present invention can be obtained by sufficiently mixing the above-mentioned thermosetting resin and microcapsules, and the content of microcapsules in the composition is 1 to 60% by weight. In this case, if the amount of microcapsules contained is less than 1% by weight, sufficient wear resistance will not be obtained, and if it exceeds 60% by weight, the tensile and tear strength of the cured product will be reduced. It is not preferable because the physical properties such as

The thermosetting resin composition of the present invention may optionally contain additives such as pigments such as titanium oxide, fillers such as clay, antifoaming agents, antioxidants, dispersion stabilizers, anti-sagging agents, etc. can do.

The present invention will be explained below using examples. The middle part of the example represents parts by weight.

Example 1 Sumikadyne F810 (curing agent-containing polyurethane resin composition, manufactured by Sumitomo Chemical Co., Ltd.) Microcapsules containing polydimethylsiloxane with a kinematic viscosity of 50 cst (centistokes) at room temperature in the lOO heavy area (produced by Matsumoto Yushi Co., Ltd.) )2
Add 0 parts by weight and thoroughly mix with a stirring bar to obtain a composition,
This was poured onto a glass plate coated with a mold release agent in advance, and cast into a sheet having a thickness of 2 fl. After curing at room temperature for 7 days, a wear resistance test of the taper set was conducted under the conditions of load t# and too many rotations. As a result, the weight on the wear wheel 1422! The loss was 4011 II.

Comparative Example 1 In an experiment conducted in the same manner as in Example 1 without adding microcapsules, the heavy wax loss was 110 ■.

Example 2 'I'oKo S-Epo #500 (epoxy resin composition containing curing agent, manufactured by Toko Asphalt Co., Ltd.)
To 100 parts by weight, to and oo at room temperature.

40 parts by weight of microcapsules encapsulating C3t polydimethylsiloxane (manufactured by Matsumoto Yushi Co., Ltd.) were added and thoroughly mixed with a stirring rod to obtain a composition, which was prepared in advance using li! # It was poured onto a glass plate coated with a molding agent and cast into a sheet with a thickness of 2fi. The sheet obtained after being left for 3 days was subjected to an abrasion test in the same manner as in Example 1, and the weight loss due to abrasion was 30 cm.

Comparative Example 2 In Example 2, an abrasion test was conducted without adding microcapsules, and as a result, the weight loss due to abrasion was taoq.

that's all 16 complete 6-20 Kuseicho, Tennoji-ku, Osaka City -405-

Claims (1)

[Scope of Claims] (1) A composition containing microcapsules containing at least one member selected from the group consisting of (a) a thermosetting resin and a fluororesin, a silicone resin, and an aliphatic hydrocarbon compound. A thermosetting resin composition in which the content of the microcapsules is 1 to 60% by weight. (2) Claim No. 1 in which the thermosetting resin is a polyurethane resin or an epoxy resin that hardens at room temperature.
Thermosetting resin composition according to item ). (8) The thermosetting resin composition according to claim (2), wherein the fluororesin, silicone resin, and aliphatic hydrocarbon compound are liquid or grease-like at room temperature.