SU771056A1 - Polymeric mixture - Google Patents

Description

The invention relates to the field of building materials, namely, compositions of polymer concrete mixtures based on unsaturated polyester resins and can be used as floor coverings, as well as to protect building structures. The known polymer concrete mixture, including, wt.%: Polyester 9.5 , - polymerization initiator 0.3, polymerization accelerator 0.2 and quartz) 1st sand 90.0 ll. Closest to the invention to the technical essence and the achieved result is a polymer concrete mixture, including, by weight: Saturated polystyrene resin 100 Hyperise3 Nafta atom of cobalt8 Dyes 3-5 Powdered quartz sand 50-75 Kaolin 25-50 The disadvantage of known mixtures is a low cure rate; strength in the early stages of curing and significant shrinkage. The aim of the invention is to increase the speed of curing, reduce the time to build strength in the early stages and reduce the shrinkage of the resulting products. Said object is achieved in that the polymer concrete composition comprising an unsaturated polyester resin, isopropylbenzene hydroperoxide, curing accelerator and inorganic filler contains as curing accelerator trietanolaminotitanat, and as a mineral filler marble fight the next component of sootnoschenii / s, parts by weight The unsaturated .: polyester resin100 Isopropyl benzene hydroperoxide 1.5-3.0 Triethanolamine titanate 0.5-1.0 Marble combat 30-1500 The technology for preparing polymer concrete mixes is as follows. In unsaturated; polyester resin is injected with stirring

the amount of release agent, then a curing initiator is added. Next, add the required amount of mineral aggregate.

mix and pour the mixture into molds.

The compositions of polymer mixtures are given in table. one.

Table

The properties of the compositions are given in table. 2..

Table 2

"Gel time 0, 0.2 0.2 0.2 times Compressive strength limit,

P

kgf / cm, organic peroxides and hydroperoxides, such as isopropylbenzene hydroperoxide or methyl ethyl ketone peroxide, can be used as a curing initiator.

As a polyester resin, a PN-1, PN-3, PN-15-, PN-16, PN-12 or any known resin containing maleate, fumarate or methyl acrylate double bonds can be used.

The use of triethanolamine increases the speed

The strength of polymer concrete mixture based on polyester resin because this compound contains a tertiary nitrogen atom and a metal of variable valence - titanium. This combination contributes to a significant increase in the curing rate and to the rapid strength of polymer concrete.

Triethanolamine titanate is a viscous mass, readily soluble in resin, and therefore it is not necessary to prepare washing solution, an accelerator, as is necessary in the case of using metal naphthenates. The use of a styrene-free accelerator reduces the shrinkage of polymer concrete, which, with an equivalent filler content, is determined by the content of the double bonds of polyester and styrene.

Claims (2)

Invention Formula Polymer concrete mix, including unsaturated polyester resin, isopropyl benzene hydroperoxide, a hardening accelerator and a mineral filler, different from that, c. the goal is to increase the curing speed, reduce the time to build strength in the early stages and reduce This product shrinks, it contains Triethanolamine titanate as a curing accelerator, and marble combat as the mineral filler at the following ratio: Research Institute of Components, parts: Unsaturated polyester resin100 Isopropylbenzene hydroperoxide 1.5-3.0 Triethanolamine titanium0, 5-1.0 Marble marble30-1500 Sources of information taken into account in examination 1, Kornc)., 0uroplaststeiWerkstoff mit Zukuft Deutsche Bauzeititne, jenthen, jenthen, jung, zuru, Zero, Werkstoff mit Zukuft. .103-104 2.Slomatov V.I. Polymer concrete concretes and plastic concrete. M ,, SI, 1967, p.154-163.