SU1694522A1 - Polymer concrete mix - Google Patents

Abstract

The invention relates to the production of composite building materials, namely, the compositions of polymer concrete mixtures for heat insulating protective coatings for pipelines. The purpose of the invention is to increase adhesion to concrete and metal, resistance to salt solutions, as well as a decrease in bulk water absorption and thermal conductivity. Polymer-concrete mixture includes, by weight parts: vat. The invention relates to the production of composite building materials, namely, polymer concrete mixes for thermal insulation and corrosion protection of pipelines. The purpose of the invention is to increase adhesion to concrete and metal, resistance to salt solutions, as well as a decrease in the volume moisture absorption and thermal conductivity. residue from the distillation of toluylene diisocyanate with 31-37% of NCO groups - 100; diethylene glycol 30-40; triethanolamine 2-4; hydrophobic silicone fluid 3-5; ground porphyrite 200-240; a plasticizer containing: a solid residue from vacuum distillation of the bottom liquid, which is formed by additional exhaustion of methylphenylcarbinol from the heavy part of the epoxidate based on high-boiling aromatic compounds - an ARMO product; product T and waste from washing industrial containers in the production of epoxy resins based on ethyl silicate 32 — product Vladigor-2 in a ratio of 2: 1: 1 80-100, respectively. Polymer concrete adhesion - the ultimate strength at separation from concrete is up to 3.9 MPa, the ultimate strength at separation from metal is up to 3.3 MPa, the resistance coefficient after 180 days of exposure in 30% NaCI solution is up to 0.92, the volume water absorption in 24 hours is up to 0%, the coefficient of thermal conductivity is up to 0.02 kcal / m-h degree. 4 tab. Polymer concrete mix is prepared in a forced-mix concrete mixer. The polymer concrete preparation technology is as follows. Polyisocyanate (toluene diisocyanate-50) and diethylene glycol are mixed for 2-3 minutes, then mineral filler — granitic porphyrites — is introduced and mixed for 1-2 minutes, then triethanolamine and silicone are added (Li Yu

Description

hydrophobic liquid (EC 119-215) and stirred for 1 min, then plasticizing additive is added, which is prepared in advance in a paddle mixer at a temperature not lower than 20 ° C.

At first, in the production of epoxy resins with 32% ethyl silicate content up to 55% in the waste from the washing of industrial tanks, Vladigor-2 dissolves the solid residue from the vacuum distillation of the bottom liquid formed during the distillation of methylphenylcarbinol from the heavy part of the epoxide based on high boiling aromatic compounds - the product of ARMO, and then the iron-binding waste from the production of caprolactam from toluene with a content of 30-65% benzoic acid - product T, the resulting mixture is stirred for 2-3 minutes.

The total mixing cycle lasts 6-10 minutes.

The prepared mixture is poured into forms heated to 60 ° C, the design of which allows i to withstand an overpressure of up to 6 kgf / cm2. Removing the articles from the molds is performed after 30-40 minutes at the temperature of mass heating during the molding process to 100-120 ° C.

A distillation residue from the distillation of toluene diisocyanate (TDI) (TU-113-03-7-29-81) is used as a polyisocyanate.

The industrial name is Surizo n T-50.

Appearance - Dark Brown mobile liquid, a mixture of TDI, products of its polymerization and thermolysis.

The content of isocyanate groups 31-87%; total chlorine 2.5%; hydrolyzed chlorine 0.5%.

Hydrophobic KE 119-215, sredmol.mae, is used as NGL. 300- 3000 sr.

Structural formula KE 119-215.

The ratio of CsHi7: C2H25 is 3: 2.

n 10-100.

By chemical composition, the ARMO product is a mixture of high-boiling aromatic compounds formed during the process of polymerization, condensation and condensation of monomers (styrene, benzaldehyde, acetophenone, etc.). The product ARMO is non-recyclable waste (Production, is a mass of black, easily dissolved in toluene, acetone.

Physico-chemical characteristics of the product

Mol.usl.ed.492,5

Temperature

spreading, ° С78,5

Drop point, ° С87.5

The content of volatile compounds, wt.% 0,134

Acid number, mg KOH / g 13.84

Essential number, mg KOH / g101.5

Hydroxyl number

mg KOH / g9,66

Bromine number, HF / 100 g53.89

VZ-4 viscosity at

20 ° С in toluene solution (1: 1) Not less than 12

The chemical composition of the product ARMO

Benzoic acid (nfYH

HE

Phenol lO x

Benzyl alcohol

about

Esters of IFC

Sh-O-NSSn3 3n3

Dimer Af 30 (Dipnon)

cn sn nn

Benzalatsetophenon (chalcone)

ABOUT

he

p

cn snII

The ARMO product is a solid residue resulting from the vacuum distillation of the bottom liquid formed when the methylphenyl carbinol is further extracted from the heavy part of the epoxidate.

ARMO product is obtained from waste

co-production of propylene oxide and styrene / ff benzyl acetate Ayj-CH QOC- (JH3

Esters of benzoic acid and IFC

-coo-CH-JQl

CHj

Esters of benzoic acid and propylene glycols

- @ - СООСНл- СН-СН3

he

Oxidation products | g),) dipnon and hal con o o he

© с-sn-sn-sn219}. about v

Trimerization product

acetophenone (AF) - 1,3: 5-triphenylbenzene

Diphenylbutane-dimer styrene

(about

CH2-CH2CH2-CH2Product T is a melting waste product from caprolactam production of benzoic acid by oxidation of toluene and. designed to produce a heat resistant composition (TSC) of an anti-corrosion coating (TU-113-03-23-30-87).

Physico-chemical characteristics of the product T are given in table. one.

Vladigor-2 - non-recyclable waste after washing industrial tanks in the production of epoxy resins, contains,%: acetone 42, ethyl silicate 32-55, epoxy resins 2-3.

The mineralogical composition of the filler used - ground porphyrite is as follows, wt.%: PP 4.71; C02 1.65; SI02 63.4; 15.7; Re203 4.15; Tyu2 0.52; CaO 2.94; MDO 1.81; ZOZ 0,1; N20 2.7; K20 4.5.

The granulometric composition of ground porphyrite is presented in table. 2,

The compositions of the proposed compositions according to the proposed solution and the prototype are presented in table. 3

Properties of the compositions are given in table. four.

Claims (1)

Invention Polymer concrete mix including polyisocyanate, diethylene glycol, triethanolamine, hydrophobicizing organosilicon liquid and mineral filler, in order to increase adhesion to concrete and metal, resistance to salt solutions, as well as reduce bulk water absorption and - heat conductivity effect, it contains as a polyisocyanate a vat residue from the distillation of toluylene diisocyanate with 31-37% of NCO- groups, ground porphyrite and a plastirite as a mineral filler a cator containing a solid residue from the vacuum distillation of the bottom liquid, which is formed when the methylphenyl carbinol is further refined from the heavy part of the epoxidate based on high-boiling aromatic compounds — ARMO product, a heavy waste of caprolactam production from toluene containing 30-65% benzoic acid product T and waste from washing industrial tanks in the production of epoxy resins based on ethyl silicate 32 — Vladigor-2 product in a ratio of 2: 1: 1, respectively, with the following component content in mas.h .: approx distillation from toluene diisocyanate with 31-37% NCO-groups 100 Diethylene glycol 30-40 Triethanolamine. 2-4 Hydrophobic Silicone Liquid3-5 Ground porphyrite200-240 Specified plasticizer80-100 Indicators Appearance Mass fraction of total acidity in terms of benzoic acid,% Mass fraction of high-boiling products,% Mass fraction of organic solvent,% Dry residue,% Phthalic acid,% Cobalt (traces),% Dry residue liquefaction temperature, ° C Viscosity according to VZ-4 at 20 ° С, s (solution in silvan 1: 1) Density at 20 ° С, g / cm3 Table 1 Norm black assa 30-65 40-60 20-30 70-80 Up to 7 0.6-0.8 70-80 14-16 1.4 (Table 2 Table 3 Table 4