SU552335A1 - Composition for the production of films based on cellulose triacetate - Google Patents

Description

increase in specific impact strength by 10–40%;

300% increase in fatigue bending resistance;

decrease in thermostat shrinkage in 3-4,

The proposed compounds are obtained by passing through benzene solution of methyl, butyl, octyl esters of p-morpholinopropionic acid dry hydrogen chloride, as well as by heating a solution of p-morpholinopropionic acid butyl ester with a. .

Example 1 A benzene solution of p-morpholinopropionic acid methyl ester is saturated with dry hydrogen chloride upon external cooling. The transmission rate is adjusted so that the temperature in the flask does not rise above -5 ° C.

After absorbing an equimolar amount of hydrogen chloride (controlled by vessel weight), the obtained suspension is filtered and washed with dry ether or methylene chloride.

The product yield 80-90%; colorless crystals with t. Il. 203 ° C.

Found,%: C 45.88; 45.83; H 7.38; 7.66; N 6.71; 6.97; C1 16.3; 16.5.

CgHisNOa-nCl.

Calculated,%: C 45.86; H 7.60; N 6.69; C1 16.92.

A solution of cellulose triacetate for casting cellulose triacetate is prepared according to the following process flow.

Cellulose triacetate is poured with a mixture of methylene chloride and methanol (9: 1) and sealed. The solution maksirovatsya for at least 5 hours, with constant stirring, a plasticizer is introduced. After additional malaksirovaniyu solution for but not less than 10 hours butanol is added. The solution is filtered, de-aerated and fed to a casting machine.

I. Composition of cellulose triacetate solution, wt. including:

Cellulose triacetate13.0

Methylene chloride 80.0

Methanol4,5

Conductive plasticizer (methyl, butyl, octyl esters of p-morpholinopropionic acid hydrochlorides, etc.) 2.0 Butanol 0.5 P. Composition, wt. including:

Cellulose triacetate17,0

Methylene chloride 75.8

Methanol6,0

Conductive plasticizer (methyl, butyl, octyl hydrochloride esters of p-morpholinopropionic acid, etc.) 1.0 Butanol 0.2

The characteristics obtained for the cellulose triacetate film are presented in table. one.

Table 1

Example 2 A benzene solution of p-morpholino-i-propionic acid butyl ester is saturated with dry hydrogen chloride upon external cooling. The transmission rate is adjusted so that the temperature in the flask does not rise above -5 ° C.

After absorbing an equimolar amount of hydrogen chloride (controlled by the weight of the vessel), the resulting material is filtered and washed with dry ether or methylene chloride.

The product yield 80-90%; colorless crystals with t. pl. - 173 ° C.

Found,%: C 52.00; 52.20; H 8.63; 8.68; N 5.54; 5.60; C1 14.43; 14.30.

CuHsiNOs-HCl.

Calculated,%: C 52.50; H 8.74; N 5.56; C1 14.10.

Triacetate cellulose ylenka is made analogously to example 1. The film thickness is 0.13-0.14 mm.

The characteristics obtained for triacetate 5 cellulose film are presented in table. 2

table 2

Example 3. A benzene solution of p-morpholinopropionic acid octyl ester is saturated with hydrogen chloride upon external cooling.

The transmission rate is adjusted so that the temperature in the flask does not rise above -5 ° C. After absorbing an equimolar amount of hydrogen chloride (controlled by the weight of the vessel), the resulting material is filtered and washed with dry ether or methylene chloride. Colorless crystals with t. PL. 169.5-171 ° C.

Found,%: C 53.49; 53.28; H 7.90; 7.92; N 4.20; 4,10; C1 9.00; 9.2.

CiyHsoNOg-HCl.

Calculated,%: C, 53.78; H 7.90; N 3.68; C1 9.34.

The cellulose triacetate film is made analogously to example 1. The characteristics obtained for the cellulose triacetate film are presented in table. 3

Table 3

Example 5. Composition III, wt. including: cellulose triacetate15

Methylene chloride 78

Methanol5.25

Conductive plasticizer (methyl, butyl, octyl hydrochloride esters of p-morpholinopropionic acid, etc.) 1.5 Butanol 0.25 The characteristics of the films obtained on the basis of composition 3 are presented in Table. four.

Properties of films obtained on the basis of composition III according to example 1.

For comparison, a cellulose acetate cellulose film with a mixture of plasticizers (DBP 5% and TPP 10%) is cast in the same conditions, 0.13-0.14 mm thick.

This cellulose triacetate film has the following characteristics (see Table 5).

Compared the results of table. 1-4 with the results table. 5 we can draw the following conclusion.

Table 4

Composition

Characteristics III

0.4.10

Volumetric electrical social resistance, ohm-cm

Thermostat shrinkage,%

0.18 longitudinal 0.16 transverse

8.1

Tensile strength tensile strength

CGS / MM2

21.0

Elongation at stretching,% 170.0 Specific impact viscosity, kgcm / cm Fatigue resistance to bending 74.0

Table 5

Content 5 g DBP and 10 g TFF

Characteristics per 100 g of triacetate

Volumetric electric with more than 10 resistance, ohm-cm

Thermostat shrinkage,%

0.3 longitudinal

0.4 transverse

20.0

Elongation at stretching,%

9.1

Tensile strength at stretching, kgf / mm

Specific 140 80

impact viscosity. kg-cm / cm

Fatigue resistance to bending

A cellulose triacetate film made with the use of quaternary ammonium salts of amino esters of p-morpholinopropionic acid has enhanced electrical conductivity and improved physicomechanical indicators.

Claims (2)

Invention Formula A composition for producing films based on cellulose triacetate, a plasticizer and a solvent, characterized in that, in order to obtain transparent film films with high electrical conductivity, the composition contains a quaternary ammonium salt of general formula as a plasticizer. 0 UK-CH-CH-COOK R A where R is alkyl; 60R-n, SNS, CsHs, СНз-С-СН-СООС, Н, P I about 65A-C1 or Br, CgHiSOs, 7 in the following ratio of components, weight. h .: Cellulose triacetate13-17 Plasticizer1-25 Solvent80.5-86.5 -8 Sources of information taken into account during the examination 1. K. Tinius. Plasticizers. Ed. “Chemistry, M.-L., 1964, p. 116. 2. "Lime Academy of Sciences of the BSSR. “Series of Chemical Sciences, 1973, No. 2, p. 66-69 (prototype).