SU678057A1 - Polymeric composition - Google Patents

Description

(54) POLYMER COMPOSITION

one. - -

The invention relates to polymeric, polyvinyl chloride (PVC) based compositions plasticized with chloroparaffin.

Known compositions based on PVC, containing plasticizers, fillers, stabilizers and other targeted additives 1.

. The closest to the technical essence and the achieved effect to the proposed is a composition comprising polyvinyl chloride, h.dorpharaffin, light stabilizer, filler, dye and heat stabilizer pentaerythritol and epoxy compound,. containing in the molecule more than 2% oxirane oxygen 2

However, such a composition has insufficiently choped physicomechanical properties and thermal stability.

The aim of the invention is to improve the physicomechanical properties and thermal stability of the composition.

According to the invention, the goal is achieved. We know that the composition, as a heat stabilizer, contains a mixture of soda ash, boric acid, benzoic acid and polyethylene glycol production.

aqueous alkylphenol (OP-7) in the following ratio of components, wt.%;

36-46

Polyvinyl chloride 20-27.5

Chloroparaffin 0.5-0.8

Light stabilizer

19-38

Filler

0.15-1.05

Dye

2.1-2.7

Borna acid

Soda calcini0, 8-1.1 bath

0.1J-0.17

Benzoic acid

Polyethylene glycol

alkylpheno derivative, 8-2.4 la

The wetting agent OP-7 is a product of treating it with and diskylphenols with ethylene oxide having the structural formula

R- / Vo (iHt: HzO) nH

i

where K is an alkyl residue, containing mainly 8-10 carbon atoms; In -Hed H or on average equal to 6-7. Dibasic lead stearate or benzene OM can be used as a light stabilizer; as filler - chalk or other known inorganic fillers.

PRI me R 1. Linoleum VPH one-loneway. The composition, wt.%:

Polyvinylchloride resin C-BZ-M

GOST 14332-6946,00

Chloroparaffin CP-470,

TU 6-01-568-71. 27.50

Light stabilizer benone

OM, RTU 71-630,80

The filler is known for flour 32,00

Dye1.05

Boric acid

GOST 18704-732,70

Soda ash,

GOST 10689-751,10

Benzoic acid,

GOST 6413-670,17

Wetting agent

OP-7, GOST 8433-572,40

Physical and mechanical properties;

Tensile strength

kg / cm 127-132

Relative elongation, ni,% .178-208.

Example 2 PVC tiles for public spaces, wt.%:

Polyvinyl chloride resin C-63-M,

GOST 14332-6936,00

Chloroparaffin CP-470,

TU 6-01-568-72-20,00

Light stabilizer-benzon

OM, RTU 71-630,50

The filler is chalk, etc. 19.00

Dye, 0.15

Boric acid

GOST 18704-732,10

Soda ash, GOST 10689-75 0.80

Benzoic acid,

GOST 6413-670,13

Wetting agent - OP-7, GOST 8433-571.80

Physical and mechanical properties; The tensile strength

kg / cm 128-129

Relative lengthening,% 112-128

Example 3, single layer PVC linoleum, composition, wt.%; CMoJia polyvinyl chloride brand C-63-M, GOST-14332-69 .42,00

Chloroparaffin HP-470, TU 6-01-568-71,25,25

Light stabilizer-benzene OM RTU 71-630,70

The filler is known cova flour25,50 Dye, 0,69 Borna acid,

GOST 18704-732,50

Soda ash, GOST 10689-751,00

Benzoic acid, GOST 6413-670,16,

678057

Wetting agent

OP-7, GOST 8433-57,20

Physical and mechanical properties;

Breaking strength, kg / cm 128

Flame elongation,% 204

Example 4. PVC tiles for public premises, composition, wt.%;

Polyvinyl chloride resin brand C-63-M

GOST 14332-6937,00

Chloroparaffin CP-470,

TU 6-01-568-7120,50

Light stabilizer-benzon

OM RTU 71-630,55

The filler is known cove flour36,50

Dye. -0,41

Boric acid

GOST 18704-732 20

Soda ash, GOST 10689-750,, 85

Benzoic acid,

GOST 6413-670,14

- Wetting agent

OP-7, GOST 8433-571,85

Physical and mechanical properties;

High strength, kg / cm 129

relative elongation,% 124

The compositions are obtained by the roller-calender method or by the extrusion method with commonly used modes of processing mass on PVC base at a temperature of 160-1OZ C.

The technological process of obtaining, for example, roller linoleum by the method consists of the following operations;

- preparation of raw materials and dosage of components;

-weighting the components, mixing them in a CM-40O paddle mixer with preliminary separate mixing of chloroparaffin with a wetting agent, heated to 80-90 C, and dry components of the additive;

- primary plasticization of PVC mass in a rotary mixer DSP-140 at a temperature of 150-160 ° C;

- PVC softening mass on two pairs of mixing rollers at a temperature of 140-150 C;

-form avannoi linoleumnogo cloth on 4-callosis calender with Z-shaped arrangement of the rolls at a temperature

5 from 150 to 130s on the last roll;

 cooling of the cloth on the drum; Razka, winding and packaging of finished products.

In compositions, the OM benone can be replaced by a dibasic stearate compound: wine.

The effect of the thermostable effect of the proposed additive is determined by comparing it with the results obtained when using the widely used and highly efficient PVC lead silicate heat stabilizer. The thermal stabilization effect of the compared additives is evaluated using the differential thermal analysis (DTA) method on the derivatograph of the F.Paulik, I.Paulik and L. Erdel systems. The film samples were studied under isothermal conditions at a temperature of lesiS C and a test duration of 100 minutes. Comparative data show that the weight loss (thermogravimetry) of the samples in the first one is shown. plasticizing effect

Indicators of the effect of the proposed additive (complex, chemical compounds) on the modification of the properties of rolled PVC components. The differences in the proposed additive, which give a positive effect, are as follows:

Ta b & z

available compounds, which makes it widely applicable;

Claims (2)

- additive devoid of toxicity; whereas the degree of harmfulness of the known trench, the PVC of the composition of the potential of the mixture is 2.4%, and in the second 8.3, i.e. when compared with the known additive in the proposed complex of compounds, the effect of heat stabilizing effect is 3.4 times higher. The effect of the synergistic effect of the additive, which leads to an increase in the compatibility of chloroparaffin with the polymer and modification of the properties of the PVC + chloroparaffin system (which, in fact, allows using CP as the main plasticizer) is shown in Table. 1 and 2. The table of its substance, OP-7, vi-chlorine paraffin X1p-47Q, is used to take into account its field of application; It is cheaper by almost three times and is characterized by higher physical and mechanical properties and thermal stability; - it additionally performs synergistically thermally stabilized PVC, therefore, the use of special chemical compounds for this purpose, i.e. practically solves two technical problems. Claims of the Invention Polymer composition comprising prolivinyl chloride, chloroparaffin, light stabilizer, filler, dye and heat stabilizer, which is part of the fact that, with the aim of physical and mechanical properties, and the susceptibility of the composition, it contains as a heat stabilizer 8 a mixture of boric acid, soda ash, benzoic acid and polyethyleneglycol derivative of alkylphenol in the following ratio of components, wt.%: Polyvinyl chloride 36-46 Chloroparaffin 20-27.5 Light stabilizer. 0.5-0.8 Filler19-38 Dye of 0.15-1.05 Boric acid 2.1-1.7 Soda ash 0, 8-1.1 Benzoic acid 0.13-0.17 A polyethylene glycol alkylphenol derivative 1,8- 2.4 Sources of information taken into account in the examination 1..FOYT I. Stabilization of synthetic polymers against the action of light and heat. L., Khimi, 1972, p. 2. Japanese patent 18415, cl. 25/1 / s 121, 1972.