JP2010516833A - PETG-type decorative panel for molding having moldability similar to PVC - Google Patents

PETG-type decorative panel for molding having moldability similar to PVC Download PDF

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JP2010516833A
JP2010516833A JP2009546314A JP2009546314A JP2010516833A JP 2010516833 A JP2010516833 A JP 2010516833A JP 2009546314 A JP2009546314 A JP 2009546314A JP 2009546314 A JP2009546314 A JP 2009546314A JP 2010516833 A JP2010516833 A JP 2010516833A
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ヨン−スン・アン
ミン−ホ・イ
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    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • 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
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    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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    • C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract

本発明はＰＶＣと類似した成形性を有するＰＥＴＧ系化粧板を提供する。ポリエチレンテレフタレートグリコール（ＰＥＴＧ）樹脂にエステル系樹脂またはエラストマー樹脂を溶融混合したＰＥＴＧアロイ樹脂を含む。これにより、ＰＥＴＧ化粧板の表面品質は維持しつつ成形温度の範囲を広げることができ、また成形可能温度を既存対比３ないし１０℃ほど下げることができる。  The present invention provides a PETG decorative board having formability similar to PVC. A PETG alloy resin in which an ester resin or an elastomer resin is melt-mixed with polyethylene terephthalate glycol (PETG) resin is included. Thereby, the range of the molding temperature can be expanded while maintaining the surface quality of the PETG decorative board, and the moldable temperature can be lowered by 3 to 10 ° C. as compared with the existing one.

Description

本発明は化粧板（ｄｅｃｏｒａｔｉｖｅ ｓｈｅｅｔ）に関し、さらに詳しくはポリ塩化ビニル(PVC)と類似した成形性を有するポリエチレンテレフタレートグリコール(ＰＥＴＧ)系化粧板に関する。   The present invention relates to a decorative sheet, and more particularly to a polyethylene terephthalate glycol (PETG) decorative board having formability similar to polyvinyl chloride (PVC).

ＰＥＴＧ成形用化粧板の表面品質は優れているが、ＰＶＣと比較すると狭い成形温度範囲及び高い成形温度を有する。   Although the surface quality of the decorative sheet for PETG molding is excellent, it has a narrow molding temperature range and a high molding temperature as compared with PVC.

すなわち、ＰＥＴＧ化粧板は優れた表面品質と成形性を有しているものの、狭い成形温度範囲によって２次的連続処理(例えば、成形)を実施するのに難点がある。成形温度が低い場合、成形品のコーナー部のほつれ、付着力の低下などが起こり、高い成形温度ではコーナー部の伸びまたは垂れが起こり、成形品質に比例して表面品質が低下する問題がある。   That is, although the PETG decorative board has excellent surface quality and moldability, there is a difficulty in performing secondary continuous processing (for example, molding) in a narrow molding temperature range. When the molding temperature is low, the corner portion of the molded product frays and the adhesive force is reduced. At a high molding temperature, the corner portion is stretched or drooped, and the surface quality is lowered in proportion to the molding quality.

日本特開２００３-２４６９１６号には異なるガラス転移温度を有する３種のポリエステル樹脂を特定比率で配合して、特定の溶融体積流速（ｍｅｌｔ ｖｏｌｕｍｅ‐ｆｌｏｗ ｒａｔｅ）を有する柔軟性ポリエステル化粧シート用組成物が開示されており、日本特開２００５-２９８７１５号には前記柔軟性ポリエステル素材に無機物充填剤を用いて難燃性を与えた組成物が開示されている。しかし、ＰＥＴＧ樹脂の成形可能温度を下げながらその成形可能な温度範囲を広げることに関する本発明とは相違している。   Japanese Patent Application Laid-Open No. 2003-246916 contains a composition for three types of polyester resins having different glass transition temperatures in a specific ratio, and a composition for a flexible polyester decorative sheet having a specific melt volume-flow rate. Japanese Unexamined Patent Publication No. 2005-298715 discloses a composition in which flame resistance is imparted to the flexible polyester material using an inorganic filler. However, the present invention is different from the present invention relating to expanding the temperature range where PETG resin can be molded while lowering the moldable temperature range.

日本特開２００３-２４６９１６号Japanese Unexamined Patent Publication No. 2003-246916 日本特開２００５-２９８７１５号Japanese Unexamined Patent Publication No. 2005-298715

本発明は前述した問題点を解決するために案出されたもので、その目的は成形物性をＰＶＣと匹敵する低い成形温度と広い成形温度範囲で成形可能にしたＰＥＴＧ成形用化粧板を提供するところにある。   The present invention has been devised to solve the above-mentioned problems, and an object thereof is to provide a decorative sheet for PETG molding, which can be molded at a molding temperature as low as PVC and a wide molding temperature range comparable to PVC. By the way.

前述した目的を達成するために、本発明はポリエチレンテレフタレートグリコール(ＰＥＴＧ)樹脂にエステル系樹脂またはエラストマー(elastomer)樹脂を溶融混合(alloy)したＰＥＴＧアロイ樹脂を含む化粧板を提供する。   In order to achieve the above-mentioned object, the present invention provides a decorative board comprising a PETG alloy resin obtained by melt-mixing an ester resin or an elastomer resin with a polyethylene terephthalate glycol (PETG) resin.

本発明に係るＰＥＴＧアロイ樹脂のガラス転移温度(Ｔｇ)は７５±３℃であって、一般のＰＥＴＧ樹脂より３ないし７℃ほど低いことから、ＰＶＣと類似に低い温度で成形可能である。   The glass transition temperature (Tg) of the PETG alloy resin according to the present invention is 75 ± 3 ° C., which is about 3 to 7 ° C. lower than that of a general PETG resin, so that it can be molded at a low temperature similar to PVC.

また、本発明に係るＰＥＴＧアロイ樹脂の成形可能な温度範囲は６０ないし８０℃であって、ＰＶＣと類似して広い温度範囲で成形可能である。一般のＰＥＴＧ樹脂の場合、成形可能な温度範囲は７０℃ないし８５℃である。   Further, the temperature range in which the PETG alloy resin according to the present invention can be molded is 60 to 80 ° C., and can be molded in a wide temperature range similar to PVC. In the case of general PETG resin, the moldable temperature range is 70 ° C to 85 ° C.

本発明においてアロイ成分として使用されるエステル系樹脂はポリブチレンテレフタレート(ＰＢＴ: polybutylene terephthalate)であって、液状重合または固相重合で得られた樹脂が望ましく、エラストマー樹脂としては、ＰＢＴ樹脂にポリエーテルグリコール(polyether glycol)を共重合したエラストマー樹脂が望ましい。   In the present invention, the ester resin used as the alloy component is polybutylene terephthalate (PBT), which is preferably a resin obtained by liquid polymerization or solid phase polymerization. An elastomer resin copolymerized with glycol is desirable.

本発明においてエステル系樹脂またはエラストマー樹脂の混合量はＰＥＴＧ１００重量部に対して５ないし２０重量部であることが望ましい。   In the present invention, the mixing amount of the ester resin or the elastomer resin is preferably 5 to 20 parts by weight with respect to 100 parts by weight of PETG.

アロイ成分の混合量が５ｐｈｒ未満の場合、Ｔｇ及び成形温度を下げる程度が微弱である。アロイ成分の混合量が２０ｐｈrを越える場合、Ｔｇ及び成形温度が過度に下がり、樹脂を加工する際ＰＢＴ及びエラストマー樹脂の特性によって化合物(compound)特性及びシート圧出性が低下するのでシート加工性が低下する。この時、ＰＢＴ樹脂の耐化学的特性によってシートの表面加工性及び接着力が低下する。   When the mixing amount of the alloy component is less than 5 phr, the degree of lowering the Tg and the molding temperature is weak. When the amount of the alloy component exceeds 20 phr, the Tg and the molding temperature are excessively lowered, and the compound properties and the sheet extrudability are lowered depending on the properties of the PBT and the elastomer resin when the resin is processed. descend. At this time, the surface workability and adhesive strength of the sheet are reduced due to the chemical resistance of the PBT resin.

本発明はＰＥＴＧ樹脂に相溶性に優れるエステル系樹脂またはエラストマー樹脂をアロイすることによって、Ｔｇを３ないし７℃程度低下させ、弾性率の減少率が徐々に低下することによって、ＰＶＣと類似した熱的挙動を有する化合物を製造することができる。したがって、この化合物で成形温度範囲が広くて低い温度で成形可能な化粧板の製造が可能である。   In the present invention, an ester resin or an elastomer resin having excellent compatibility with PETG resin is alloyed to reduce Tg by about 3 to 7 ° C., and the rate of decrease in elastic modulus is gradually decreased, so that heat similar to PVC is obtained. Can be produced. Therefore, it is possible to produce a decorative board that can be molded at a low temperature with this compound having a wide molding temperature range.

参考として、成形性をデータ化できる代表的な方法としては、ＤＭＡ(dynamic mechanical analysis)を用いて弾性率の変化を測定する方法がある。   As a reference, a representative method that can convert the moldability into data includes a method of measuring a change in elastic modulus using DMA (dynamic mechanical analysis).

以上述べたように、本発明によればＰＥＴＧ樹脂にエステル系樹脂またはエラストマー樹脂をアロイすることによって、ＰＥＴＧ化粧板の表面品質は維持しつつ成形温度の範囲を広げることができ、また成形可能温度を既存のＰＥＴＧ化粧板との対比で３ないし１０℃ほど下げることができる。   As described above, according to the present invention, the range of the molding temperature can be expanded while maintaining the surface quality of the PETG decorative board by alloying the ester resin or the elastomer resin with the PETG resin. Can be lowered by about 3 to 10 ° C. in comparison with the existing PETG decorative board.

実施例１の化粧板に対するガラス転移温度と弾性率（storage modulus)変化を示したグラフである。It is the graph which showed the glass transition temperature with respect to the decorative board of Example 1, and a elasticity modulus (storage modulus) change. 実施例２の化粧板に対するガラス転移温度と弾性率変化を示したグラフである。It is the graph which showed the glass transition temperature with respect to the decorative board of Example 2, and elastic modulus change. 実施例３の化粧板に対するガラス転移温度と弾性率変化を示したグラフである。It is the graph which showed the glass transition temperature with respect to the decorative board of Example 3, and elastic modulus change. 実施例４の化粧板に対するガラス転移温度と弾性率変化を示したグラフである。It is the graph which showed the glass transition temperature with respect to the decorative board of Example 4, and elastic modulus change. 比較例の化粧板に対するガラス転移温度と弾性率変化を示したグラフである。It is the graph which showed the glass transition temperature and elastic modulus change with respect to the decorative board of a comparative example.

以下、本発明の実施の形態について詳細に説明する。   Hereinafter, embodiments of the present invention will be described in detail.

[実施例１]
ＰＥＴＧ樹脂にＰＢＴ樹脂を１０ｐｈｒ添加して圧出コンパウンディングした後、その混合物を０.５ｍｍの厚さで圧出シーティング(extrusion-sheeting)した。 [Example 1]
After adding 10 phr of PBT resin to PETG resin and performing extrusion compounding, the mixture was subjected to extrusion-sheeting at a thickness of 0.5 mm.

[実施例２]
ＰＥＴＧ樹脂にＰＢＴ樹脂を２０ｐｈｒ添加して圧出コンパウンディングした後、その混合物を０.５ｍｍの厚さで圧出シーティングした。 [Example 2]
After adding 20 phr of PBT resin to PETG resin and performing extrusion compounding, the mixture was subjected to extrusion sheeting to a thickness of 0.5 mm.

[実施例３]
ＰＥＴＧ 樹脂にＰＢＴ共重合エラストマー樹脂を１０ｐｈｒ添加して圧出コンパウンディングした後、その混合物を０.５ｍｍの厚さで圧出シーティングした。 [Example 3]
After adding 10 phr of PBT copolymer elastomer resin to PETG resin and performing extrusion compounding, the mixture was subjected to extrusion sheeting to a thickness of 0.5 mm.

[実施例４]
ＰＥＴＧ樹脂にＰＢＴ共重合エラストマー樹脂を２０ｐｈｒ添加して圧出コンパウンディングした後、その混合物を０.５ｍｍの厚さで圧出シーティングした。 [Example 4]
After adding 20 phr of PBT copolymer elastomer resin to PETG resin and performing extrusion compounding, the mixture was subjected to extrusion sheeting to a thickness of 0.5 mm.

[比較例]
ＰＥＴＧ樹脂を０.５ｍｍの厚さで圧出シーティングした。 [Comparative example]
PETG resin was extrusion-sheeted at a thickness of 0.5 mm.

図５から分かるように、既存ＰＥＴＧ鏡面化粧板の場合、ガラス転移温度は７４℃付近で低下し始めて８４℃付近で最低点になる。   As can be seen from FIG. 5, in the case of the existing PETG mirror surface decorative plate, the glass transition temperature starts to decrease around 74 ° C. and reaches the lowest point around 84 ° C.

[試験例]
実施例１ないし４及び比較例の化粧板に対して、ガラス転移温度と弾性率変化をＤＭＡを用いて測定した。 [Test example]
With respect to the decorative plates of Examples 1 to 4 and the comparative example, the glass transition temperature and the elastic modulus change were measured using DMA.

図１は実施例１(ＰＥＴＧ+ＰＢＴアロイ樹脂、アロイ成分含量:１０ｐｈｒ)に対する化粧板のガラス転移温度と弾性率変化を示したグラフであって、Ｔｇは７６℃であり、弾性率低下は６５℃から始まった。   FIG. 1 is a graph showing a glass transition temperature and a change in elastic modulus of a decorative board with respect to Example 1 (PETG + PBT alloy resin, alloy component content: 10 phr). Tg is 76 ° C., and a decrease in elastic modulus is 65. Started from ℃.

図２は実施例２(ＰＥＴＧ+ＰＢＴアロイ樹脂、アロイ成分含量:２０ｐｈｒ)に対する化粧板のガラス転移温度と弾性率変化を示したグラフであって、Ｔｇは７４℃であり、弾性率低下は６３℃から始まった。   FIG. 2 is a graph showing the glass transition temperature and the change in elastic modulus of the decorative board with respect to Example 2 (PETG + PBT alloy resin, alloy component content: 20 phr). Tg is 74 ° C., and the elastic modulus decrease is 63 Started from ℃.

図３は実施例３(ＰＥＴＧ+ＰＢＴ共重合エラストマーアロイ樹脂、アロイ成分含量:１０ｐｈｒ)に対する化粧板のガラス転移温度と弾性率変化を示したグラフであって、Ｔｇは７７℃であり、弾性率低下は６５℃から始まった。   FIG. 3 is a graph showing a glass transition temperature and a change in elastic modulus of a decorative board with respect to Example 3 (PETG + PBT copolymer elastomer resin, alloy component content: 10 phr), and Tg is 77 ° C. The decrease began at 65 ° C.

図４は実施例４(ＰＥＴＧ+ＰＢＴ共重合エラストマーアロイ樹脂、アロイ成分含量:２０ｐｈｒ)に対する化粧板のガラス転移温度と弾性率変化を示したグラフであって、Ｔｇは７３℃であり、弾性率低下は６０℃から始まった。   FIG. 4 is a graph showing a glass transition temperature and a change in elastic modulus of a decorative board with respect to Example 4 (PETG + PBT copolymer elastomer resin, alloy component content: 20 phr). Tg is 73 ° C. The decrease began at 60 ° C.

図５は比較例(ＰＥＴＧ樹脂)に対する化粧板のガラス転移温度と弾性率変化を示したグラフであって、Ｔｇは８３℃であり、弾性率低下は７３℃から始まった。   FIG. 5 is a graph showing the glass transition temperature and the change in elastic modulus of the decorative board with respect to the comparative example (PETG resin).

本発明によればＰＥＴＧ樹脂にエステル系樹脂またはエラストマー樹脂をアロイすることによって、ＰＥＴＧ化粧板の表面品質は維持しつつ成形温度の範囲を広げることができ、また成形可能温度を既存の化粧板との対比で３ないし１０℃ほど下げることができる。   According to the present invention, an ester resin or an elastomer resin is alloyed with a PETG resin, so that the range of molding temperature can be expanded while maintaining the surface quality of the PETG decorative board. The temperature can be lowered by about 3 to 10 ° C.

Claims (6)

ポリエチレンテレフタレートグリコール(ＰＥＴＧ)樹脂にエステル系樹脂またはエラストマー樹脂を溶融混合したＰＥＴＧアロイ樹脂を含む化粧板。   A decorative board comprising a PETG alloy resin obtained by melt-mixing an ester resin or an elastomer resin with a polyethylene terephthalate glycol (PETG) resin. ＰＥＴＧアロイ樹脂のガラス転移温度(Ｔｇ)が７５±３℃であることを特徴とする請求項１に記載の化粧板。   The decorative plate according to claim 1, wherein the glass transition temperature (Tg) of the PETG alloy resin is 75 ± 3 ° C. ＰＥＴＧアロイ樹脂の成形可能な温度範囲が６０ないし８０℃であることを特徴とする請求項１に記載の化粧板。   The decorative board according to claim 1, wherein the temperature range in which the PETG alloy resin can be molded is 60 to 80 ° C. エステル系樹脂がポリブチレンテレフタレート(ＰＢＴ)であることを特徴とする請求項１に記載の化粧板。   The decorative board according to claim 1, wherein the ester resin is polybutylene terephthalate (PBT). エラストマー樹脂がポリブチレンテレフタレート樹脂にポリエーテルグリコールを共重合したエラストマー樹脂であることを特徴とする請求項１に記載の化粧板。   2. The decorative board according to claim 1, wherein the elastomer resin is an elastomer resin obtained by copolymerizing a polyether glycol with a polybutylene terephthalate resin. エステル系樹脂またはエラストマー樹脂の混合量がＰＥＴＧ１００重量部に対して５ないし２０重量部であることを特徴とする請求項１に記載の化粧板。   The decorative board according to claim 1, wherein the mixing amount of the ester resin or the elastomer resin is 5 to 20 parts by weight with respect to 100 parts by weight of PETG.
JP2009546314A 2007-01-23 2008-01-03 PETG-type decorative panel for molding having moldability similar to PVC Pending JP2010516833A (en)

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