SU927826A1 - Polymeric composition for waterproofing material - Google Patents

Description

The invention relates to polyvinyl chloride compositions for the preparation of a waterproofing material that can be used to isolate pipelines or equipment located at different elevations. A known composition for a waterproofing material containing poly vinyl chloride, a copolymer of vinyl chloride with vinyl acetate, a plasticizer, a stabilizer, a pigment, and an SP filler. The disadvantage of this material is low heat resistance. Closest to the proposed technical essence and achievable result is a polymer composition for waterproofing material, containing, wt.%: Polyvinyl chloride 53 plasticizer 32 (dibutyl phthalate 10.6, dioctyl phthalate 21), stabilizer 1.1 (stearate-calcium), 8.6 lithopone filler and thinner 5.3. (spindle oil) t.2. The disadvantages of the composition are low heat resistance and the strength of the film formed. The purpose of the invention is to improve the heat resistance and strength of the waterproofing material. This goal is achieved by the fact that a polymer composition for a waterproofing material, containing polyvinyl chloride, a plasticizer, a stabilizer, a filler and a diluent, as a plasticizer, contains the bottom residue of dimethyl terephthalate production (3 DMT) with a softening temperature and a density of 1.221, 26 g / cm in the following ratio components, wt .: Polyvinyl chloride 20-AO Vat residue from the production of dimethyl terephthalate Filler 3-20 Stabilizer 1-3 Thinner Rest 3 3 As a stabilizer, com barium calicole oleate barium stearate and others. The quality of the filler is lithopone, talc, K chalk, white zinc, etc., and l-chloroparaffin, spindle oil transformer oil, dibutyl oil and others. The bottom residue (3 DMT includes the following elements) , May .: Diphenyltricarboxylic acid and its trimethyl ester. Benzoqumarindicarboxylic acid and its dimethyl ester. Diphenyl dicorboxylic acids and their dimethyl ether. ophthalate 15-20 p-toluic acid1-2 methyl ester of p-toluic acid5 10 h-formylbenzoic acid and its ester 8-10 methyl ester of benzoic acid 0.3-0.5 Physical and chemical characteristics of the cubic residue (3 DMT): Temperature size, with Acid number mg KOH / g omylyeni mg 70-490 KOH / g 1,220-1,260 Density, g / cm Composition 14140 is prepared as follows. Polyvinyl chloride is mixed with a part of the bottom residue and left for 4-8 hours until full maturity, the rest of the bottom residue is mixed with a diluent, filler and stabilizer, rubbed on a roller or conventional paint grinder (in laboratory conditions in a mortar, then both parts are mixed in a mixer in the quantities required by the recipe. The finished waterproofing mass is applied to the substrate, for example, paper, cloth, fiberglass, fiberglass, etc., an average of 0.2 kg per, and heat treated at 100-1 ° C for -8 min at a thickness of covered ma The composition of the compositions and the physicomechanical properties of the waterproofing material on a paper basis before aging and after aging for 72 hours at 70 s are given in the table.

Polyvinyl chloride P-5 20 29.95 40 Stabilizer: 1 2 3 calcium stearate ricinoleate bari Filler: lithopone whitened with zinc talc chalk Thinner: 10 0.05 5 spindle oil chloroparaffin dibutyl phthalate Components and indicators Plasticizer:. . dioctyl phthalate - dibutyl phthalate - VAT residue (3 DMT) 49 65 Strength at break of a strip of size 30x150x. X0.4 mm, kgf before aging 12.3 15.5 after aging 11.2 12.5 Coefficient of heat-v resistance by tensile strength 0.93 0.81 Relative elongation at break, before aging 110 -PO after aging 125 135 Relative residual elongation,% before aging 12 12 after aging 16 14 Water absorption, t 0.9 1.1 Water permeability Water. From the data in the table it can be seen that the hydro insulating material obtained on the basis of the proposed composition is more than 2 times known for initial strength and 1.1–1.4 times for heat resistance. In addition, a reduction in consumption. . polyvinyl chloride and the replacement of plasticizers with the vat residue of dimethylterephthalate production leads to an increase in the economic effect, which, according to preliminary calculations, is 327.5 rubles. per 1 ton of polymer composition. the invention Polymer composition for waterproofing material containing

9278266

The table extends the content of components, wt.%, According to examples 2 | 3 1 Js b Liter speed. - - - - 21. . 10b 40 54 51 JS. 14.1 12.5 13.0 12.0 5.0 10.5 11.3 11.8 10.1 3.3 0.74 0.30, 0.91 0.84 0.66 120 120 1bO 180 100 130 130 170 185 140 14 7 8 10 8 20 9 10 13 10 1.0 1.0 1.3 1.1 1.1 1.5 waterproof PVC, plasticizer, stabilizer, filler and diluent, such that improving the heat resistance and strength of the material, the composition as a plasticizer contains a distillation residue of dimethyl terephthalate production with a softening temperature of 0–3 ° C and a density of 1.22–1.26 g / cm in the following ratio of components, wt .: Polyvinyl chloride 20–40 Vat residue dimekltereftalat 40-65 Filling3-20 Stabilizer 1-3 Thinner. Sources of information taken into account in the examination

79278268

1. Panin A, S. et al. Defensively-rials. M ,, 19b9 | issue 3, s.

blood materials on the basis of plasticity (Collection of works VNIPIteploproekt)., masses for thermal insulating const 2. Polyvinyl chloride films on

Ruktsy.-In the book. Production, properties of paper-based (izoplenK

and the use of insulating mate- 5TU 21-29-11-77 (prototype).

Claims (1)

The claims ⁵⁵ A polymer composition for a waterproofing material containing I polyvinyl chloride, a plasticizer, a stabilizer, a filler and a diluent, characterized in that, in order to improve the heat resistance and strength of the material, the composition as a plasticizer contains bottoms of dimethyl terephthalate production with a softening point of 0-3 ° C and a density of 1.22 - 1.26 g / cm * in the following ratio of components, wt.%: Polyvinyl chloride 20-40 VAT residue dimethyl terephthalate 40-65 Filler 3-20 Stabilizer 1-3 Diluent Rest