SU1558939A1 - Thermoplastic fire-resistant polymeric composition - Google Patents

Abstract

The invention relates to polymeric compositions based on polycarbonates used to form constructive products with reduced flammability. The invention allows to increase the hydrolysis resistance, optical properties of the products and the thermal stability of the composition during processing. This result is achieved through the use of a thermoplastic, flame retardant polymer composition containing 100 wt.h. polycarbonate and flame retardant, as a flame retardant 0.02-0.05 wt.h. water-soluble saccharin in the NA-form and additionally 0.1-0.2 wt.h. phosphite selected from the group including diphosphite on the basis of pentaerythritol. Trinonylphenylphosphite, bisphenol-based cyclic phosphite, diphosphitepentaerythritol distearate, 0.05-0.20 wt.h. glycerol monostearate and / or glycerol distearate or sorbitan monostearate. 1 tab.

Description

The invention relates to polymeric compositions based on polycarbonates, which are used to form structural objects, sheets, tubes, profiles with reduced flammability.

 The purpose of the invention is to increase the hydro-resistance and optical properties of the products and to increase the thermal stability of the composition during processing. PRI me R 1. To 100 ma.ch. PC polycarbonate (melt flow rate MFR 3.5 g / 10 min at 280 ° C and F 21.17 N) was added 0.05, mixtures of mono- and distearate (palmate) glycerol (SG) in the form of 10% concentrate, 0.02 wt. water-soluble saccharin in the Na-form (CX) in the form of a 25% aqueous solution and 0.1 wt.h. phosphite (diphosphite based on pentaerythritol) in the form of a 10% concentrate. The composition is dried, passed through an extruder, granulated and standard samples are cast from the granules.

Example2. As in example 1, but the IG introduces 0.2 mach.

PRI me R 3. As in Example 1, but the SG introduced 0.1 wt.h., and CX 0.05 mac.h.

EXAMPLE 4 As in Example 1, but the SG introduced 0.1 wt.h., CX 0.03 wt.h. and phosphite {distearate diphosphitepenta-erythritol) 0.2 wt.h.

&one

with

with

(0

PRI me R 5. As in Example 1, but CX 0.03 mach. Was introduced. and no CG and phosphite are added.

EXAMPLE 6 As in Example 1, but phosphite was injected at 0.15 ma.h., and no SG and CX were added.

 PRI me R 7. To 100 ma.ch. PC (PTR-3,5 r / t O min.) 0.2 mo.h of partially saponified polyvinyl alcohol in the form of a 15% concentrate, 0.04 mas. CX in the form of a 25% aqueous solution and 0.2 wt.h of phosphite in the form of a 10% concentrate, then

as in example 1 „

i

In the composition according to examples 1-7, a PC containing a lubricant, such as tetrastearatepentaerythritol, can be used in an amount of 0.1-0.2 wt.h, a PC with a heat stabilizer, a PC containing 0.1-1% light stabilizer from UV rays. . Fiberglass may be added to the composition.

The composition of the compositions and the properties of products based on them are presented in the table.

five

0

five

Formula of the invention Thermoplastic flame retardant polymer composition, including polycarbonate and flame retardant, characterized in that, in order to increase the hydrolysis resistance and optical properties of products and increase the thermal stability of the composition during processing, as a flame retardant, it contains water soluble saccharin in the Na form and additionally phosphite, selected from the group including pentaerythritol diphosphite, trinonylphenyl phosphite, bisphenol-based cyclic phosphite, diphosphite pentaerythritol distearate, and chl monostearate icerin and / or glycerol distearate or sorbitan monostearate in the following ratio of components, parts by weight:

Polycarbonate. 100

Water-soluble saccharin in the Na-form 0.02-0.05 Phosphite 0.1-0.2

Glycerin monostearate and / or glycerol distearate or sorbitan monostearate0, 05-0.20

Components of the composition, nas.h .:

polycarbonate100100

a mixture of mono- and distearate (Gl & mi-aate) glycerol (TU 18-16-1Z6-83) ionostearate ssrbithia

glycerol ionostearate

distearate glycerin

partially saponified polyvinyl alcohol eo ooastsorimy saccharin in Na-form at diphosphite Ba pentraeritrita trinonilfenilfosfit cyclic phosphite on bis-phenol distearate difosfit- peitaeritrita I- (p-tolyl sulfenil) -p-toluene- sulfaiamida0,2

three (2, -trihromfe-), 8

Maisimlmm (rshi burn (f, or (,) one and five ovres "tso at h" them, c203

Cumulative burning (C, t,) five

 with h b mm. e10} 22

Class

h k V2VO

h 3 mmV2VO

100100tOO100100110100

0.05 t, 30.1l), 1

0.1

0,020,020,050,0} 0,0} 0.03

0, | 0.10, i0, "50.2

0.2

20

VO

VO

25

vfl .0

VO

what

22

vo VO

21

VO

VO

nineteen

102

V2 v2

20

VO

VO

100

100

0.1

o.t

0.03

o.z

0.04 0.2

nineteen

22

vo VO

21

VO

VO

102

V2 v2

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nineteen

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vfl

Characteristics of composites

Indicators for example

PC

Oxygen index,% Integration of light, passing on discs 2 and 2, b Color of polycarbonate after heating at T - 280 ° C for 5 min

25 Bd

IiTH LlIT Tl i: EIIIlII

36 82

36

36 88

37

88

37 88

31.26

83.5 87

36

88

36 88

) 7 88

Colorless- Slightly Kestsvet- Colorless- Colorless- Bascolor- Slightly Colorless- Colorless-Colorless Colorless yellow-NMD long-term soft-DK 8 transparent vatoerachiy opulent arayny opaque batting erachny zrainy

 Unreliable and non-reproducible results of a large number of them are also cheap.

Compiled by I. Chernova Editor N. Gunko Tehred A. Kravchuk

Order 818

Circulation

VNIIPI State Committee for Inventions, and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zht35, Raushsk nab., D. V5

Table continuation

lIT Tl i: EIIIlII

37

88

37 88

31.26

83.5 87

36

88

36 88

) 7 88

Corrector S.Cherni

Subscription

Claims (1)

obtaining a fire-resistant polyinclusive poly, distinctive, with the aim of increasing ¹ PRI me R 7. To 100 wt.h. PC (MF = 3.5 g / 10 min) add 0.2 wt.h40 partially saponified polyvinyl alcohol in the form of a 15% concentrate, 0.04 wt.h. CX in the form of a 25% aqueous solution and 0.2 wt.h. phosphite in the form of a 10% concentrate, further as in example 1. ! In the composition according to examples G-7, a PC containing a lubricant, for example tetrastearate pentaerythritol, in an amount of 0.1-0.2 wt.h, PC with a heat stabilizer, PC containing 0.1-1% of a light stabilizer from UV rays. Fiberglass may be added to the composition. 25 The composition of the compositions and properties of products based on them are presented in the table. form of thermoplastic measuring composition, carbonate and flame retardant, with hydrolysis resistance and optical properties of products and increase the thermal stability of the composition during processing, it contains water-soluble saccharin in Na-form and optionally phosphite selected from the group comprising pentaerythritol-based diphosphite, trinonylphenylphosphite, bisphenol-based cyclic phosphite, diphosphite-pentaerythritol distearate, and glycerol monostearate and / or glycerol distearate or sorbitan monostearate, as follows ratio, in parts by weight ,: Polycarbonate Na-form water-soluble saccharin Phosphite glycerol monostearate and / or glycerol distearate or sorbi monostearate100 0.02-0.05 0.1-0.2 COMPOSITION CHARACTERISTICS - --------______ The components of the composition, parts by weight: polycarbonate mixture of glycerol monodistezrate (palmitate) (TU 18-16-126-83) momostearet ssorbi 'tana monostearate glycerol. rina distearate glycerol partially saponified polyvinyl alcohol water-soluble saccharin in Na-form pemphaerythritol-based trinonylphenylphosphite cyclic phosphite-bis-phenol distearag diphosphitepentaerythritol Na-salt K * (l-tolylsulfuenyl-p-p one hundred Pc j neaest- | I Nom I that on 0.05-0.20 Indicators for an example 'I i '1 ^! I 6 eleven • one 3 one hundred one hundred too one hundred one hundred one hundred one hundred too too 0.05 ‘0.3 0.1 0.1 0.1 0.1 0.2 0.02 0.02 0.05 0,03 0,03 0,03 o.oz oh oh * 0.1 0.1 0.1 0, <5 0.2 0.2 0.2 sulph ia ^ yes 0.2 . three (2, * - tjbrbronoxy) triamn 0.8 Maismnalkioa (Rail Go - rhenium (f, or {,) of one and "five in the image · at h · 4 mn, s twenty 3 3 th 3 19 3 3 u Summara time grief- (С, ♦ f _t ) five times for h 103 22 twenty 25 16 22 21 102 twenty 19 23 The class of the housing part at 72 V0 vO VO h * 4 them V2 vo 70 70 70 ^v 0 vo h "3" and V2 V0 'V0 V0 MO vo 70 72 vO 70 VO Table continuation Characteristic Indicators for example composition lx | ......... 1 ------— ’goes nuts- | | Nomu | 2 w P G ” G. g-h-g-g Oxygen index, j 25 36 36 36 37 37 34 26 36 36 37 Integral Light _ lowering on disks 2 mm thick, 15 Polycarbonate color 84 82 88 88 88 88 83.5 87 88 88 88 after heating at T · 280®С · current 5 nim Colorless Slightly Colorless Colorless- Colorless- colorless Slightly Colorless Besets- Blessed - Blessed ny pro yellow ny pro my pro • nych pro my pro yellow my pro my pro NEW by them about pupilous vatiy Pupilous pupilous pupilous pupilous squeezed * pupilous pupilous pupil pupil 30 minutes Slightly,. Yellow _ι. Yellow Hydro indicators yellow * resilience · th Malimma "" crotrecin after boiling "days: 2 Otherwise A lot of No No No No Otherwise A lot of No No no 5 .one'. Highly -it. Highly Highly A LOT OF a lot of a lot of Integral light and dusk, X on the totem disks 2 of them after boiling, days: 2 46 49 87.5 87.6 87.5 87.6 49 54 87.6 87.5 87.5 5 - 35 85.5 85 86, • " 85 86 84 Coefficient of thermal stability of melt T-280®С Acidity of the com- 0.83 0.Λ 0.96 0.97 ' 0.96 0.96 1 .17 0.75 0.94 0.96 0.36 ZITZI! pH of the litmus paper one one 7 7 7 7 3 2 6.5 7 6 Burning toxic bromine No there is no Her No No No No No No no * Uncompromising and irreproducible results due to the high number of