SU1213046A1 - Polymeric composition - Google Patents

Description

The invention relates to polymeric compositions based on polyesters, polyvinyl chloride (CVH), rubber, and can be used as a joint for fiberglass.

The purpose of the invention is to increase the viability, strength characteristics and water resistance of the composition.

For the implementation of the invention, rosin modified and stabilized is used, which is the product of partial esterification (degree of esterification) of pine gum rosin with pentaritrite and subsequent stabilization of 2,2-methylenenbis 4-methyl-6- (1-methylcyclohexyl -1) with phenol (Biscalofen MCP).

Modified and stabilized rosin (KM-1) was prepared as follows. A weighed amount of pine gum rosin is loaded into a reactor equipped with a mechanical stirrer, a thermometer, a bubbler for supplying carbon dioxide and a cooler to remove the water vapor formed during the reaction. Then pentaerythritol is also loaded at the rate of 4–4.5% by weight of rosin (in terms of 100% purity pentazritrite). The process of rosin esterification proceeds at 280-290 ° C for 3-4 hours. Heating of the reaction mass to 285 ° C is more intensive. The process of esterification of rosin is carried out in the presence of carbon dioxide. When the temperature of the reaction mass reaches 280-290 ° C and the rosin oils and water are distilled off at this temperature, the mixture is kept at this temperature for 2-3 hours until the acid value is no more than 90 mg KOH / g.

one

Then the process of esterification is completed, the system creates a vacuum of 400–600 mm Hg. and holding the product for 1 hour to distill off volatile substances. Then a stabilizer of 2,2-methylenebis 4-methyl-6- (1-methyl-cyclohexyl-1) phenol (Bisalkofen MCP) at a rate of 1% by weight of rosin is loaded into the reactor to prevent oxidation, the heating is turned off and product cooling. Modified stabilized rosin KM-1 is a transparent, glassy yellow mass with a softening temperature of at least 70 ° C and an acid number of not more than 90 mg

KOH / H, soluble in ether, acetone, toluene.

The presence of essential KM-1 in modified stabilized rosin KM-1

and acid groups, as well as the conjugated conjugated doyne bonds of resin acids, ensures a high viability of the composition, increases strength properties and

water resistance composition. CM-1 is well combined with the composite material, which ensures the orderliness of its structure.

The polymer composition is prepared

in the following way.

The calculated amount of polyvinyl chloride (PVC-CO-3 - PVC production waste) is dissolved in a mixture of oligo-ethylene glycol malicate phthalate - polyester MS-1 with tri-ethylene glycol dimethacrylate - TGM-3 or in a mixture of styrene with TGM-3 with constant mixing with heating is not over 30 minutes, and the hitch

penta-erythritol modified rosin And stabilized by Bisalkofen MCP (KM-1) and butadiene-nit. RIL rubber (SKN-26A) is dissolved in cobalt naphthenate with stirring until complete dissolution at 25-30 ° C for 20 30 min. Next, the preparation of the polymer composition is carried out by blending the two solutions and isopropylbenzene hydroperoxide is added. Cooked

The composition of the composition is in those

5 min. The working viscosity of the polymer compositions at 20 ° C using the OT-4 viscometer is 120-140 s. After that, test samples are formed from the prepared compositions.

Polymer compositions prepared according to this recipe are the one-mass mass of light-gray

45 colors with a density of 1.1-1.13 g / cm at 20 ° C.

Examples 1-9. Preparation of the composition. 30.2 wt.% PVC-CO-3 polyvinyl chloride is dissolved in,

50 mixtures of 22.4% by weight of oligoethylene glycol maleate phthalate and 33.4% by weight of triethylene glycol dimethacrylate with constant stirring with heating not over time for 30 minutes. For those 3.3 wt.% Rosin, modified by pentaerythritol and stabilized by Bisalkofen MCP (KM-1), and 0.7 wt.% Rubber SKN-26A solution -,

7.0% by weight of cobalt naphthenate NK-1 are dissolved until completely dissolved at 25 to 20-30 minutes. Then these two solutions are poured together and 3.0% by weight of isopropylbenzene hydroperoxide is added with stirring for 5 minutes. After this, test samples are formed from the prepared composition, (This example corresponds to composition VI).

Similarly, a known composition and other formulations of the proposed composition were prepared. Table 1 presents data on the content of components in the known and proposed compositions.

tga-3 pvc-so-z

Polyester MS-1

Styrene Rubber KM-1

Silicon polymer

Cobalt naphthenate

Isopropylbenzene hydroperoxide

40 36,835,733,131,631,233,435,334,132.8

28 25,124,827,123,232,730,224,123,523,5

----- 22,422,423,621,121.0

20 22,323,320,824,2 --- 1, 0 1,81,51,31,81,20,71,31,01,0

3,24,56,79,21,83,34,89,311,2

0.2 ------- .- 7, 8 8,07.58,07,07,77,08,08,07,5

3.0 2.8 2.7 .3.0 3.0 3.0 3.0 2.9 3.0 3.0

213046

Physico-mechanical properties of polymer compositions are given in table 2.

5 As can be seen from Table 2, the use of an additional modifier in the proposed composition. - rosin modified with pentaerythritol and stabilized by Bisalkofen MCP,

10 improves vitality

 compositions 12-13 times, tensile strength tensile -1.4 times, compressive strength 1.5-3 times, water resistance 1.4-1.8 times

15 compared with the known polymer composition.

Table

Compiler A.Kulakova Editor S.Lyzhova Tehred T.Tulik Proofreader A.Obruchar

Order 725/36 Circulation 471 Subscription

VNISh State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, Proektna St., 4

table 2

Claims (1)

POLYMERIC COMPOSITION, including triethylene glycol dimethacrylate, polyvinyl chloride, unsaturated compound, cobalt naphthenate, isopropylbenzene hydroperoxide and nitrile butadiene rubber, characterized in that, in order to increase the viability, strength and water-soluble fatty acids, the composition contains only one more modified 4-4.5 wt.% Pentaerythritol and containing 0.5-1 wt.% 2,2 ^J- methylenebis [4-methyl-6- (1-methylcyclohexyl-1) phenol], in the following ratio, wt.% : Triethylene glycol dimethacrylate Polyvinyl chloride Styrene or oligoethylene glycol maleate phthalate Cobalt naphthene Rosin modified May 44.5% pentaerythritol and containing 0.5-1 wt.% 2, 2'-methylenebis [4-methyl-6- (1 - methylene) cyclohex ] Isopropylbenzene hydroperoxide Nitrile butadiene rubber SU ..., 1213046 f