KR20160107961A - Retardant polyester composition - Google Patents
Retardant polyester composition Download PDFInfo
- Publication number
- KR20160107961A KR20160107961A KR1020150031613A KR20150031613A KR20160107961A KR 20160107961 A KR20160107961 A KR 20160107961A KR 1020150031613 A KR1020150031613 A KR 1020150031613A KR 20150031613 A KR20150031613 A KR 20150031613A KR 20160107961 A KR20160107961 A KR 20160107961A
- Authority
- KR
- South Korea
- Prior art keywords
- flame retardant
- parts
- flame
- weight
- resin
- Prior art date
Links
Classifications
-
- 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
- C08K3/016—Flame-proofing or flame-retarding additives
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0066—Flame-proofing or flame-retarding additives
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- 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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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 flame retardant polyester composition useful as a molded article for automobiles or electric and electronic products. More particularly, the present invention relates to a flame retardant polyester composition comprising a polybutylene terephthalate resin and a polyethylene terephthalate resin as base resins, And antimony trioxide and a Teflon-based flame retardant auxiliary agent and a glass fiber filler at a specific ratio. When the flame retardant is molded into parts for automobile or electrical and electronic products, improved flame retardancy To a polyester composition.
Description
The present invention relates to a flame retardant polyester composition useful as a molded article for automobiles or electric and electronic products. More particularly, the present invention relates to a flame retardant polyester composition comprising a polybutylene terephthalate resin and a polyethylene terephthalate resin as base resins, And antimony trioxide and a Teflon-based flame retardant auxiliary agent and a glass fiber filler at a specific ratio. When the flame retardant is molded into parts for automobile or electrical and electronic products, improved flame retardancy To a polyester composition.
Conventionally, modified polyphenyl ether materials are used as materials for parts for automobiles and batteries. However, conventional modified polyphenyl ether materials have a poor heat resistance and lack flame retardant properties, which may be melted due to heat generated in the parts or may be vulnerable to fire .
Generally, automotive and electric parts are exposed to electricity for a long time and require high mechanical properties and electrical properties as well as high flame retardancy.
Although the polyester resin composition has a somewhat lower flexibility than the modified polyphenyl ether resin composition, when a proper amount of glass fiber is added to the polyester resin composition, the mechanical properties can be improved and the flexibility can be secured.
Particularly, the polyester resin composition is excellent in mechanical properties, heat resistance and flame retardancy as compared with the modified polyphenyl ether resin composition, and can prevent melting or mechanical damage or fire due to heat in the use of the product, And is widely used for molding.
As a prior art, Korean Patent Laid-Open Publication No. 2013-133746 discloses a resin composition comprising 50-90 wt% of a polybutylene terephthalate resin and 10-50 wt% of a polyethylene terephthalate resin, and 100-100 wt parts of a phosphorus- A polybutylene terephthalate resin composition for forming a metal composite part having excellent adhesion and flame retardancy including a part of a polybutylene terephthalate resin is proposed. In Korean Patent Laid-Open Publication No. 2014-110267, 35 to 90% of a polybutylene terephthalate resin, To about 20%, an antimony flame retardant of 1 to 10%, a polyfluoroethylene resin of 0.1 to 1.5%, a silicone compound of 0.1 to 5% and an inorganic filler of 5 to 50%. A butylene terephthalate resin composition has been proposed.
In this prior art, halogen flame retardants, antimony antimony flame retardants and metal oxides are used as additives for imparting flame retardancy to the polybutylene terephthalate resin. Particularly, in fields requiring flame resistance such as electric and electronic devices A brominated polycarbonate oligomer, a brominated epoxy oligomer and the like, and a flame retardant auxiliary such as antimony trioxide are mixed. However, inefficient use of the flame retardant or excessive introduction of the flame retardant makes it difficult to exhibit sufficient inherent characteristics of the resin, and there arises a problem that processing problems arise.
Further, such conventional molding compositions exhibit some improvement in terms of improvement in physical properties, but there is much room for improvement in terms of excellent physical properties such as tensile strength and gloss and excellent flame retardancy.
The present invention provides a flame retardant polyester composition having excellent flame retardancy and excellent tensile strength and gloss as pointed out in the prior art.
Accordingly, an object of the present invention is to provide a polyester composition having both excellent gloss and flame retardancy together with tensile strength.
Another object of the present invention is to provide a flame retardant polyester composition which is excellent in flame retardance and gloss, and has properties useful for molding for automobiles or electric and electronic products.
In order to solve the above problems, the present invention provides a thermoplastic resin composition comprising 70 to 90 parts by weight of a polybutylene terephthalate resin having an intrinsic viscosity of 0.5 to 1.5 dl / g and 10 to 30 parts by weight of a polyethylene terephthalate resin having an intrinsic viscosity of 0.4 to 0.8 dl / 100 parts by weight of a base resin; 10 to 30 parts by weight of an epoxy-based bromine flame retardant as the first flame retardant; 3 to 10 parts by weight of antimony trioxide as a second flame retardant; 0.7 to 3.0 parts by weight of a Teflon-based flame retarding auxiliary; And 15 to 25 parts by weight of glass fiber as a filler.
The polyester composition having the above composition according to the present invention is not only excellent in flame retardancy, but also has excellent tensile strength and gloss, and is very useful as a molding material for automobile parts or a molding material for electrical and electronic products.
Hereinafter, the present invention will be described in more detail as an embodiment.
The present invention is characterized by comprising a base resin composed of a polybutylene terephthalate resin and a polyethylene terephthalate resin having a specific range of intrinsic viscosity, and a flame retardant, a flame retardant aid and a filler.
According to the present invention, the base resin is composed of 70 to 90 parts by weight of a polybutylene terephthalate resin having an intrinsic viscosity of 0.5 to 1.5 dl / g and 10 to 30 parts by weight of a polyethylene terephthalate resin having an intrinsic viscosity of 0.4 to 0.8 dl / g do.
According to a preferred embodiment of the present invention, when a polybutylene terephthalate resin is used in an excessively large amount, if the intrinsic viscosity of the polybutylene terephthalate resin is too low in the basic resin composition, the molecular weight is too low, If it is high, the fluidity is deteriorated and there is a problem of poor processability. In addition, if the intrinsic viscosity of the polyethylene terephthalate resin is too low, the molecular weight is low and the mechanical properties are deteriorated. If the intrinsic viscosity is too high, the flowability is deteriorated and the workability is poor.
According to the present invention, the epoxy-brominated flame retardant is preferably used as the first flame retardant in an amount of 10 to 30 parts by weight based on 100 parts by weight of the base resin. If the amount of the brominated flame retardant is too small, If used, there is a problem of deterioration of mechanical properties. As the brominated flame retardant, for example, at least one selected from brominated polycarbonate, brominated epoxy compound and brominated polyacrylate may be used.
As the second flame retardant, antimony trioxide is used in an amount of 3 to 10 parts by weight based on 100 parts by weight of the base resin. When antimony trioxide is used in an excessively small amount, the flame retardancy is greatly deteriorated. If the antimony trioxide is used in excess, .
In order to maximize the flame retardancy, the Teflon-based flame retardant aid is used in an amount of 0.7 to 3.0 parts by weight based on 100 parts by weight of the base resin. When the amount is too small, the flame retardancy improving effect is insignificant. There is a problem of deterioration of fluidity and deterioration of mechanical properties. According to a preferred embodiment of the present invention, PTFE or the like may be used as the Teflon-based flame retarding auxiliary.
According to a preferred embodiment of the present invention, the glass fiber is used as a filler in an amount of 15 to 25 parts by weight based on 100 parts by weight of the base resin. If the amount is too small, the tensile strength becomes poor. When the amount is excessively used, There is a problem.
According to a preferred embodiment of the present invention, the glass fibers preferably have an average length of 3 to 5 mm and an average diameter of 7 to 15 탆.
According to the present invention, the above-mentioned flame retardant and filler are partially used in the conventional polyester composition, but the above-mentioned basic resin composition has a flame retardant property only by a series of compositions in which the two kinds of flame retardants, And a composition having both excellent tensile strength and gloss, and the like.
The flame retardant polyester composition constituted according to the present invention exhibits flame retardancy characteristics of V-0 or higher, which is a physical property standard of UL94 Spec., Which is required to prevent fire caused by heat generated when parts for automobiles and electric and electronic equipments are used. In addition, when the molded product is extruded or injection molded with excellent tensile strength and excellent gloss, it is possible to produce a molded article of excellent quality.
Therefore, the flame retardant polyester composition according to the present invention is preferably used as a molded product for automobile parts or battery electronic products.
The present invention exhibits excellent physical properties as described above, and includes molded articles for automobiles or electric and electronic products molded from the flame retardant polyester composition according to the present invention.
Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited to the Examples.
Examples 1 to 5 and Comparative Examples 1 to 7
(Resin 1) having an intrinsic viscosity of 1 dl / g and a polyethylene terephthalate resin (resin 2) having an intrinsic viscosity of 0.6 dl / g were prepared as the base resin, , Brominated epoxy compound CXB-2000H (brominated epoxy compound), antimony trioxide (flame retardant 2) available from Iyang Chemical Co., Ltd., Teflon-based flame retardant auxiliary of XFLONG G from Pocera Co., A flame-retardant polyester resin composition was prepared using glass fibers (filler) having a diameter of 11 mu m.
These resin compositions were produced by constituting the composition and composition ratio (parts by weight) as shown in Table 1 below.
Experimental Example
Each test specimen was prepared for the flame retardant polyester resin composition prepared in the above Examples and Comparative Examples according to the composition shown in the following Table 1, and prepared by the following method.
Each of the resin compositions of Examples and Comparative Examples was prepared by kneading at 250 ° C using a 25 mm twin-screw extruder, drying the specimen, and then extruding it through a 100-ton class extruder.
The properties of the prepared specimens were measured and evaluated in the following manner, respectively, and the results are shown in Table 1 below.
(1) Tensile strength
Since the parts or materials for automobiles and electric appliances require a certain level of strength or more, the tensile strength of 1000kgf / cm 2 or more is measured by UTM equipment. When the tensile strength is less than 1000 kgf / cm 2 , it is judged that the quality is low (unsatisfactory).
(2) Flammability
The flame retardancy was measured by UL94 Spec. Method in order to prevent the fire caused by heat generated when using parts for automobiles and electric and electronic parts. In the case of automobile and electric and electronic parts, flame retardancy requires a flame retardancy of V-0 or higher.
(3) Glossiness
Evaluate the degree of gloss through visual observation and judge whether or not to pass. At this time, the polish degree was evaluated based on the appearance of the automobile and electrical and electronic products, and the pass / fail was determined based on the average value of the final evaluation results.
(kgf / cm2)
As a result of the experiment, as shown in Table 1, which was compared with the results of the experiment, the following conclusions were obtained.
Example 1 was a composition using polybutylene terephthalate resin, polyethylene terephthalate resin, flame retarding agents 1 and 2, a flame-retarding auxiliary agent and a filler within the range of the present invention, and satisfied all the tensile strength, flame retardancy and gloss.
Example 2 decreased the resin 1 and increased the resin 2 within the scope of the present invention, but met the specifications without any significant difference in physical properties.
In Example 3, the resin 1 was increased and the resin 2 was reduced within the scope of the present invention, but the specifications satisfied the physical properties without any significant difference.
In Example 4, the amount of the flame-retardant aid 2 was increased within the range of the present invention, but the specifications were satisfied without significantly varying the physical properties.
In Example 5, the amount of the flame-retarding auxiliary agent 2 was reduced within the scope of the present invention, but the specifications were satisfied without significantly differing properties.
Comparative Example 1 was greatly unsatisfactory in tensile strength, flame retardancy, and gloss when a modified polyphenylene ether resin was used instead of polybutylene terephthalate resin and polyethylene terephthalate resin.
Comparative Example 2 was unsatisfactory in the flammability specification when the flame retarding agent 1 was reduced below the range of the present invention.
In Comparative Example 3, when the flame retarding agent 1 was increased in excess of the range of the present invention, the tensile strength standard and the glossiness standard were unsatisfactory.
Comparative Example 4 was unsatisfactory in the flammability specification when the flame retarding agent 2 was reduced to less than the range of the present invention.
In Comparative Example 5, when the flame retarding agent 2 was increased in excess of the range of the present invention, the tensile strength standard and the glossiness standard were unsatisfied.
Comparative Example 6 was unsatisfactory in the flame retardancy specification when the flame retardant aid was reduced below the range of the present invention.
Comparative Example 7 was unsatisfactory in the tensile strength standard when the flame retardant aid was increased beyond the range of the present invention.
Comparative Example 8 was unsatisfactory in tensile strength specifications when the filler was reduced below the scope of the present invention.
Comparative Example 9 was dissatisfied with the flame retardancy specification and the gloss specification when the filler was increased beyond the range of the present invention.
From the above-described experimental results, it was confirmed that the flame retardant polyester composition of the present invention has excellent flame retardancy and excellent results both in tensile strength and gloss.
The flame retardant polyester composition according to the present invention is highly preferable for application to molded articles for automobiles or electric and electronic products.
In addition, it can be used as a molded product of various industrial products, and is particularly useful for application to external molding products requiring glossiness.
Claims (6)
10 to 30 parts by weight of an epoxy-based bromine flame retardant as the first flame retardant;
3 to 10 parts by weight of antimony trioxide as a second flame retardant;
0.7 to 3.0 parts by weight of a Teflon-based flame retarding auxiliary; And
15 to 25 parts by weight of glass fiber as a filler
Based on the weight of the flame retardant polyester resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150031613A KR20160107961A (en) | 2015-03-06 | 2015-03-06 | Retardant polyester composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150031613A KR20160107961A (en) | 2015-03-06 | 2015-03-06 | Retardant polyester composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20160107961A true KR20160107961A (en) | 2016-09-19 |
Family
ID=57103522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150031613A KR20160107961A (en) | 2015-03-06 | 2015-03-06 | Retardant polyester composition |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20160107961A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130133746A (en) | 2010-06-09 | 2013-12-09 | 윈테크 폴리머 가부시키가이샤 | Polybutylene terephthalate resin composition, metal composite component, and method for producing metal composite component |
| KR20140110267A (en) | 2013-03-07 | 2014-09-17 | 에스케이씨 주식회사 | A polybutylene terethphalate resin composition |
-
2015
- 2015-03-06 KR KR1020150031613A patent/KR20160107961A/en not_active Application Discontinuation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130133746A (en) | 2010-06-09 | 2013-12-09 | 윈테크 폴리머 가부시키가이샤 | Polybutylene terephthalate resin composition, metal composite component, and method for producing metal composite component |
| KR20140110267A (en) | 2013-03-07 | 2014-09-17 | 에스케이씨 주식회사 | A polybutylene terethphalate resin composition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5893722B2 (en) | Non-halogen flame retardant high rigidity polycarbonate resin composition | |
| EP2383311B1 (en) | High-strength polyphenylene sulfide/polyethylene terephthalate blended resin composition and a production method therefor | |
| KR102148574B1 (en) | Flame-retardant Polypropylene Resin Composition with Excellent Rigidity and Heat Resistance | |
| KR101425285B1 (en) | Flame Retarding Polypropylene Resin Composition | |
| JP6177252B2 (en) | Polybutylene terephthalate resin composition | |
| KR102053245B1 (en) | Polybutyleneterephthalate Resin Composition and Moded Article Produed with the Same | |
| KR101632571B1 (en) | Halogen-free flame retardant polyester resin composition with good mechanical properties and molded article thereof | |
| KR100997052B1 (en) | Master batch composite for polypropylene flame retardant corrugated pipe | |
| KR101748243B1 (en) | Halogen-free flame-retardant polyester resin composition having high fluidity and surface gloss and molded article thereof | |
| KR20090066599A (en) | Flame retardant thermoplastic polyester resin composition | |
| KR101863421B1 (en) | Halogen-free Flame retarding Polypropylene Resin Composition | |
| KR20160107961A (en) | Retardant polyester composition | |
| CN108676330A (en) | A kind of halogen-free anti-flaming PBT composite and preparation method thereof | |
| KR20160107960A (en) | Retardant polyester composition for battery housing | |
| KR101263986B1 (en) | Environment-friendly, flame retardant thermoplastic polyetherester elastomer resin composition having good flexibility and reflectivity | |
| KR20140110267A (en) | A polybutylene terethphalate resin composition | |
| KR102432759B1 (en) | Flame-retardant Polypropylene Resin Composition with Excellent Resistance to Blooming and Excellent Rigidity | |
| KR102183907B1 (en) | Thermoplastic flame retardant resin composition, method for preparing the resin composition and molding product comprising the resin composition | |
| CN103073858B (en) | Polyester composition, preparation method and application thereof | |
| KR101958576B1 (en) | Polyamide resin composition and article comprising the same | |
| KR100824781B1 (en) | Flame retarding polyester compositions | |
| KR101733198B1 (en) | Polyester composition having high fluidity | |
| KR20140125214A (en) | Polyester Resin Composition with Flammability and a Breaker for Electric Supply Producing by It | |
| JPH09302227A (en) | Polyphenylene sulfide resin composition | |
| KR101215315B1 (en) | Halogen-free flame-retardant resin composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal |