KR20140110267A - A polybutylene terethphalate resin composition - Google Patents
A polybutylene terethphalate resin composition Download PDFInfo
- Publication number
- KR20140110267A KR20140110267A KR1020130024296A KR20130024296A KR20140110267A KR 20140110267 A KR20140110267 A KR 20140110267A KR 1020130024296 A KR1020130024296 A KR 1020130024296A KR 20130024296 A KR20130024296 A KR 20130024296A KR 20140110267 A KR20140110267 A KR 20140110267A
- Authority
- KR
- South Korea
- Prior art keywords
- polybutylene terephthalate
- flame
- resin composition
- retardant
- terephthalate resin
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a polybutylene terephthalate resin composition comprising a flame retardant and a dripping inhibitor in a flame-retardant polybutylene terephthalate resin and having excellent impact strength and electrical insulation, which can be applied to a wide range of fields such as automobiles, electric and electronic parts
Description
The present invention relates to a polybutylene terephthalate resin composition comprising a flame retardant and an anti-dripping agent in a flame-retardant polybutylene terephthalate resin, and having excellent impact strength and electrical insulation, which can be applied to a wide range of fields such as automobiles and electric and electronic parts.
Polybutylene terephthalate is a crystalline thermoplastic polyester resin which is tough, has a high rigidity, and is excellent in heat resistance, heat aging resistance and the like. It has good electrical characteristics in a wide temperature range, small water absorption rate, excellent weather resistance and chemical resistance. With such excellent chemical resistance, mechanical strength and electrical insulating properties, polybutylene terephthalate is used in housings and connectors of electric, electronic and automobile parts. However, in order to be applied to these various uses, the polybutylene terephthalate material is required to have flame retardancy.
Generally, halogen flame retardants, antimony flame retardants such as antimony flame retardants and metal oxides are used as a method for imparting flame retardancy to polybutylene terephthalate resins.
Particularly, in a field requiring flame resistance such as electric and electronic elements, a composition obtained by mixing a flame retardant such as a brominated polycarbonate oligomer and a brominated epoxy oligomer with a flame retardant auxiliary such as antimony trioxide is used. However, sufficient introduction of the flame retardant into the resin causes difficulty in manifesting the original characteristics of the resin, and there is a problem in that processing problems arise. On the other hand, in the prior art relating to low halogenation and increase of flame retardancy, PCT / EP2009 / 053702
As component A) there may be used polyolefins such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), impact modified polystyrene (HIPS), styrene- acrylonitrile copolymer Butadiene-styrene copolymer (ABS), methacrylate-acrylonitrile-butadiene-styrene copolymer (MABS), styrene-butadiene block copolymer (SBC) , Polyamide (PA), polyethylene terephthalate (PET), polyethylene terephthalate glycol (PETG), polybutylene terephthalate (PBT), polyoxymethylene (POM), polycarbonate (PC) Thermoplastic processible polyurethane (TPU), polyphenylene oxide (PPO), foamable and / or foamed polystyrene (EPS), foamable and / or foamed polypropylene Or 2 of these polymers From 39 to 99% by weight of one or more thermoplastic polymers;
B) from 1 to 60% by weight of a flame retardant component comprising a compound represented by the formula (I); And
(I)
C) 0 to 60% by weight of a further additive.
(A) about 75 wt% to about 99.9 wt% resin component comprising at least about 70 wt% polytrimethylene terephthalate, and (b) about 0.1 wt% to about 15 wt% Discloses a polytrimethylene terephthalate based composition comprising from about 0.1% to about 25% by weight of an additive package comprising a melamine cyanurate flame retardant additive.
However, in the case of such halogenated or low halogenated products, it is difficult to secure a desired level of flame retardant effect, mechanical strength, processability and dimensional stability at the same time.
The present invention relates to a polyester resin composition having excellent flame retardancy and processability, which comprises a flame retardant imparting flame retardancy, a flame retardant aid, and a heat-resistant type fatty acid ester capable of improving processability, It is intended to provide a polybutylene terephthalate resin composition which can be used for automobiles, electric and electronic parts and the like by simultaneously improving flame retardancy and processability as well as mechanical strength, dimensional stability and heat resistance by including a filler.
According to the present invention,
(A) 35 to 90% of a polybutylene terephthalate resin,
(B) 5 to 20% of a brominated flame retardant,
(C) 1 to 10% of an antimony-based flame retardant,
(D) 0.1 to 1.5% of a polyfluoroethylene resin,
(E) 0.1 to 5% of a silicone compound and
(F) 5 to 50% of an inorganic filler. The present invention also provides a flame retardant polybutylene terephthalate resin composition.
The polybutylene terephthalate composition of the present invention was found to be superior in flame retardancy, mechanical strength, processability and dimensional stability to the conventional composition.
Since a polyester resin generally has a characteristic of easily burning upon exposure to fire, a composition comprising a flame retardant is applied. Particularly, in a field requiring flame resistance such as electric and electronic elements, a composition obtained by mixing a flame retardant such as a brominated polycarbonate oligomer and a brominated epoxy oligomer with a flame retardant auxiliary such as antimony trioxide is used. However, sufficient introduction of the flame retardant into the resin causes difficulty in manifesting the original characteristics of the resin, and there is a problem in that processing problems arise.
It is possible to ensure excellent flame retardancy by adding a small amount of a silicone compound in addition to a bromine flame retardant, an antimony flame retardant aid, and a polyfluoroethylene resin, which are known flame retardant combinations.
Therefore,
(A) 35 to 90% of a polybutylene terephthalate resin,
(B) 5 to 20% of a brominated flame retardant,
(C) 1 to 10% of an antimony-based flame retardant,
(D) 0.1 to 1.5% of a polyfluoroethylene resin,
(E) 0.1 to 5% of a silicone compound and
(F) 5 to 50% of an inorganic filler. The present invention also provides a flame retardant polybutylene terephthalate resin composition.
Preferably, the polybutylene terephthalate is in the form of a copolymerized copolymer or a mixture of two or more of polyethylene terephthalate, polycarbonate and the like.
Preferably, the polybutylene terephthalate resin has a viscosity of IV 0.6 to 1.4 dl / g.
The silicon-based compound used in the present invention can be widely used in the art, but, as one specific example, the silicone-based compound has the following formula.
Where R is either silica or an organic alkyl, cycloalkyl, alkenyl, or aryl group, and n is an integer greater than or equal to 10;
Preferably, R is made of silica and partly substituted with alkyl, alkenyl, phenyl or the like, which is advantageous for dispersion.
As a production method, alkoxysiloxane is put into a reactor with toluene and subjected to dispersion treatment using ultrasonic waves. A silane coupling agent may be added in excess to the reaction between the dispersed siloxane and the silica, and the reaction may be performed by heating under a nitrogen atmosphere. After the reaction, the material is dried, and the modified siloxane is re-dispersed in toluene to separate the unreacted material, and then centrifuged to remove unreacted material. Thus, the following silicon compound can be prepared.
(Wherein n is an integer of 10 or more).
The weight average molecular weight of the silicone compound is preferably 5,000 to 500,000 (g / mol). If the weight average molecular weight is less than 5,000, the effect of heat resistance and flame retardancy of the silicone itself is insufficient, and when the molded product is blended with polybutylene terephthalate, the silicone compound seeps into the surface of the molded product, have. When the weight average molecular weight of the silicone compound exceeds 500,000, it is not easy to uniformly disperse the silicone compound in the polybutylene terephthalate resin.
Particularly, an average molecular weight of 200,000 to 400,000 (g / mol) is more preferable. In this case, a flame retardant evaluation is performed in combination with a drip prevention function, and a synergy effect on polyfluoroethylene resin and anti-drip properties is exhibited.
The silicone compound is preferably added to the polybutylene terephthalate resin at a ratio of 0.1 to 5%. When the amount of the silicone compound is less than 0.1 part by weight, it is difficult to ensure sufficient flame retardancy. Further, when the silicone compound is added in an amount exceeding 5 parts by weight, the resin friction force is decreased, and it is difficult to inject the resin into the extruder.
Preferably, the inorganic filler is at least one selected from the group consisting of glass fiber, carbon fiber, glass bead, glass flake, clay, talc, mica, calcium carbonate and barium sulfate.
In the present invention, the polyfluoroethylene resin is added as an anti-dripping agent. The polyfluoroethylene resin is preferably added at a content ratio of 0.1 to 1.5%. When the polyfluoroethylene resin is added in an amount of less than 0.1 part by weight, the effect of preventing drip can not be obtained. When the polyfluoroethylene resin is added in an amount exceeding 1.5 parts by weight, the flow rate during extrusion is not constant and productivity is lowered.
Hereinafter, the present invention will be described in more detail with reference to the following examples, but it should be understood that the scope of the present invention is not limited thereto.
Examples and Comparative Examples
The compositions contained in Examples 1 to 4 and Comparative Examples 1 to 4 are the same.
(A) Polybutylene terephthalate: Changchun Co., Ltd. 211M was used. (Viscosity 1.00 dl / g)
(B) Brominated flame retardant: Ethane-1,2-bis (pentabromophenyl) ALBEMARLE SAYTEX 8010 was used.
(C) Antimony Flame Retardant: Ilyang Chemical antimony trioxide was used.
(D) Polyfluoroethylene resin: blendex 449 of Ge speciality chemical was used.
(E) Silicone compound: GENIOPLAST PELLET S manufactured by WACKER Co., Ltd. was used.
(F) Inorganic filler: Owens-corning 952 was used.
Examples 1 to 4 and Comparative Examples 1 to 4 Resin production
Melted and kneaded in a twin-screw extruder (diameter 46 mm, L / D 40) heated to 310 ° C. in the composition ratio shown in the following Table 1, and then dried in a dehumidifying dryer at 120 ° C. for 4 hours , And injected at the same temperature as that in melting and kneading by using a heated screw extruder to prepare a specimen of a polybutylene terephthalate resin composition.
Assessment Methods
- Flame retardancy: A 0.8 mm thick rod specimen was measured using a flame resistance meter according to UL94 (the degree of flame retardancy is indicated by the grade of V-0 to V-2, V-0 shows the best flame retardancy and V- Indicates a poor flame retardancy. Generally, a flame retardant material of a plastic molded product means a material having a V-0 rating).
- Appearance: Injection molding of 3mm specimen is performed to check for defects such as silver wire on the surface.
- Meltability: Determine the phenomenon of the decrease in the meltability due to the lowering of the frictional force of the resin surface.
As a result of the evaluation, as shown in Table 1, the polybutylene terephthalate resin composition prepared by optimizing the content of each component according to the present invention showed excellent physical properties as measured.
On the other hand, Example 1 shows that when the content of the brominated flame retardant is low, it is difficult to exhibit a sufficient flame retarding effect. In Comparative Example 2, when the content of the polyfluoroethylene exceeds the proper level, Lt; / RTI > Comparative Examples 3 and 4 show synergistic effects of polyfluoroethylene and a silicone compound, and it is difficult to satisfy the flame retardancy as a component.
Accordingly, since the polybutylene terephthalate resin composition according to the present invention has excellent flame retardancy, mechanical strength and thermal stability, it is applicable to high temperature and precision parts such as connectors, switches, bobbins and various housings in electrical and electronic parts It can be seen that it is suitable for the following.
Claims (6)
(B) 5 to 20% of a brominated flame retardant,
(C) 1 to 10% of an antimony-based flame retardant,
(D) 0.1 to 1.5% of a polyfluoroethylene resin,
(E) 0.1 to 5% of a silicone compound and
(F) 5 to 50% of an inorganic filler.
Where R is either silica or an organic alkyl, cycloalkyl, alkenyl, or aryl group, and n is an integer greater than or equal to 10;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130024296A KR20140110267A (en) | 2013-03-07 | 2013-03-07 | A polybutylene terethphalate resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130024296A KR20140110267A (en) | 2013-03-07 | 2013-03-07 | A polybutylene terethphalate resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20140110267A true KR20140110267A (en) | 2014-09-17 |
Family
ID=51756354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020130024296A KR20140110267A (en) | 2013-03-07 | 2013-03-07 | A polybutylene terethphalate resin composition |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20140110267A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160107960A (en) | 2015-03-06 | 2016-09-19 | 에스케이씨 주식회사 | Retardant polyester composition for battery housing |
| KR20160107961A (en) | 2015-03-06 | 2016-09-19 | 에스케이씨 주식회사 | Retardant polyester composition |
-
2013
- 2013-03-07 KR KR1020130024296A patent/KR20140110267A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160107960A (en) | 2015-03-06 | 2016-09-19 | 에스케이씨 주식회사 | Retardant polyester composition for battery housing |
| KR20160107961A (en) | 2015-03-06 | 2016-09-19 | 에스케이씨 주식회사 | Retardant polyester composition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101313027B (en) | Use of a blend of phthalate plasticizers in poly(vinyl halide) compounds | |
| KR100773734B1 (en) | Flame retardant thermoplastic polyester resin composition | |
| US20060151758A1 (en) | Fire resistant intumescent thermoplastic or thermoset compositions | |
| WO2005080494A1 (en) | Flame retardant composition with enhanced fluidity, flame retardant resin composition and molding thereof | |
| KR101190971B1 (en) | Eco-friendly Flame Retardant Thermoplastic Copolyetherester Elastomer Resin Composition For Electric Wire Sheath | |
| KR20160044436A (en) | High modulus and ultra-high ductility blended thermoplastic compositions | |
| CN111492010A (en) | Flame-retardant polyethylene terephthalate resin composition having improved impact resistance and method for producing same | |
| JPWO2018042869A1 (en) | Flame retardant composition and flame retardant synthetic resin composition | |
| KR20180079305A (en) | Thermoplastic polyester resin composition and molded article | |
| JP3958277B2 (en) | Thermoplastic resin composition | |
| EP3504261B1 (en) | Flame-retarded polyamide composition | |
| KR20140110267A (en) | A polybutylene terethphalate resin composition | |
| KR20200032118A (en) | Low flame flame reduction cable | |
| KR20130132004A (en) | Halogen-free flame retardant polyester resin composition with good mechanical properties and molded article thereof | |
| JP7091310B2 (en) | Flame-retardant polyester composition | |
| KR20090066599A (en) | Flame retardant thermoplastic polyester resin composition | |
| JP6177252B2 (en) | Polybutylene terephthalate resin composition | |
| KR101748243B1 (en) | Halogen-free flame-retardant polyester resin composition having high fluidity and surface gloss and molded article thereof | |
| KR100865612B1 (en) | Composition of Polycarbonate/Acrylonitrile-Butadiene-Styrene alloy resin of halogen free flame retardant having antistatic | |
| JPH11343389A (en) | Flame-retardant thermoplastic resin composition excellent in tracking resistance | |
| KR102465885B1 (en) | Thermoplastic flame retardant resin composition and flame retardant resin molded articles produced by the same | |
| KR101360118B1 (en) | Low volatile and flame retardant polyester resin composition and molded article thereof | |
| TWI239982B (en) | Flame-retradant polyester composition | |
| KR101438862B1 (en) | Polybutyleneterephthalate Resin Composition and Moded Article Produed with the Same | |
| JP2634715B2 (en) | Flame retardant polyolefin rubber composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WITN | Withdrawal due to no request for examination |