JPS6019334B2 - Reinforced polyethylene terephthalate composition - Google Patents
Reinforced polyethylene terephthalate compositionInfo
- Publication number
- JPS6019334B2 JPS6019334B2 JP5840277A JP5840277A JPS6019334B2 JP S6019334 B2 JPS6019334 B2 JP S6019334B2 JP 5840277 A JP5840277 A JP 5840277A JP 5840277 A JP5840277 A JP 5840277A JP S6019334 B2 JPS6019334 B2 JP S6019334B2
- Authority
- JP
- Japan
- Prior art keywords
- polyethylene terephthalate
- reinforced polyethylene
- weight
- physical properties
- terephthalate composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】
本発明は成形性と物性の優れた強化ポリエチレンテレフ
タレート組成物に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reinforced polyethylene terephthalate composition with excellent moldability and physical properties.
ポリエチレンテレフタレートは低温での結晶化速度が遅
いため、通常の成形方法による場合結晶化度が低く成形
・性、物性の劣ったものしか得られないという欠点を持
っている。Since polyethylene terephthalate has a slow crystallization rate at low temperatures, it has the disadvantage that when used with ordinary molding methods, only products with low crystallinity and poor moldability and physical properties can be obtained.
これに対してガラス繊維などの無機充填材を添加し剛性
を上げたり、核剤の添加あるいは高温の金型で成形して
結晶化度をあげることにより、成形性や物性の向上する
ことが知られている。また強化ポリエチレンテレフタレ
ートにェポキシ樹脂を添加すると、樹脂とガラス繊維の
接着性が高められ物性の向上することも報告されている
が必らずしも満足すべき水準に迄は到っていない。本発
明者らは強化ポリエチレンテレフタレートに関して更に
高水準の改良を意図して鋭意研究した結果、ェポキシ化
合物の中でもトリアジン環を有するものが物性向上に特
別顕著な効果を持つことを見出し本発明を完成した。即
ち本発明は、ポリエチレンテレフタレートに対してトリ
アジン環を有するェポキシ化合物を０．０５〜３重量％
と全組成物中１０〜５の重量％の繊維状補強充填剤から
なる強化ポリエチレンテレフタレート組成物である。However, it is known that moldability and physical properties can be improved by adding inorganic fillers such as glass fibers to increase rigidity, adding nucleating agents, or increasing crystallinity by molding with high-temperature molds. It is being It has also been reported that when an epoxy resin is added to reinforced polyethylene terephthalate, the adhesion between the resin and glass fibers is increased and the physical properties are improved, but this has not necessarily reached a satisfactory level. The present inventors conducted extensive research with the intention of further improving reinforced polyethylene terephthalate, and as a result, they discovered that among epoxy compounds, those having a triazine ring have a particularly remarkable effect on improving physical properties, and completed the present invention. . That is, in the present invention, the epoxy compound having a triazine ring is contained in an amount of 0.05 to 3% by weight based on polyethylene terephthalate.
and 10 to 5% by weight of the total composition of a fibrous reinforcing filler.
通常用いられるェポキシ樹脂の代表的なものは、ビスフ
エノールＡのジグリシジルエーテルの様なビスフェノー
ル型ェポキシで、その他ポリオールェーテル型、多価カ
ルボン酸ェステル型のものが挙げられるが、これらを強
化ポリエチレンテレフタレートに添加した場合一様に物
性ぎ向上するものではなく、中にはかえって強度低下を
きたすものも認められる。ビスフェノール型ェポキシは
比較的物性の向上効果を示すが必ずしも高い効果とは言
えず全般的に低い水準にとどまっている。これに対して
トリアジン環を有するェポキシ化合物は極めて顕著な機
械的強度の向上をもたらし特異的に大きな効果を示す。
本発明において用いられるトリアジン環を有するェポキ
シ化合物とは、ェポキシ基を２個以上有するもので具体
的にはトリグリシジルィソシアヌレート（ＴＧＩＣ）、
Ｎ−メチル−Ｎ′，Ｎ′ージグリシジルィソシアヌレー
ト（ＤＧＩＣ）などが挙げられる。又該ェポキシ化合物
の添加量としてはポリエチレンテレフタレートに対して
０．０５〜３重量％の範囲が好ましい。０．０５重量％
より少ないと物性向上効果が低く３重量％を越えると流
動性が悪くなり成形性が低下するので不適当である。Typical epoxy resins commonly used are bisphenol type epoxies such as diglycidyl ether of bisphenol A, and other types include polyol ether type and polyhydric carboxylic acid ester type, but these can be strengthened. When added to polyethylene terephthalate, the physical properties do not uniformly improve, and there are some that actually cause a decrease in strength. Although bisphenol type epoxy shows a comparative effect of improving physical properties, it cannot necessarily be said that the effect is high, and the level remains at a generally low level. On the other hand, an epoxy compound having a triazine ring shows a particularly significant improvement in mechanical strength.
The epoxy compound having a triazine ring used in the present invention is one having two or more epoxy groups, and specifically, triglycidyl isocyanurate (TGIC),
Examples include N-methyl-N',N'-diglycidyl isocyanurate (DGIC). The amount of the epoxy compound added is preferably in the range of 0.05 to 3% by weight based on the polyethylene terephthalate. 0.05% by weight
If the amount is less, the effect of improving physical properties will be low, and if it exceeds 3% by weight, the fluidity will deteriorate and the moldability will decrease, which is inappropriate.
本発明において用いられるポリエチレンテレフタレート
とはエチレンテレフタレート単位を主構成単位とする線
状ポリエステル又は該ポリエステルを主成分とする熱可
塑性組成物であってその縮合度については特に限定され
ない。The polyethylene terephthalate used in the present invention is a linear polyester having ethylene terephthalate units as a main constituent unit or a thermoplastic composition having the polyester as a main component, and the degree of condensation thereof is not particularly limited.
又本発明において用いられる繊維状補強充填剤とは通常
用いられるガラス繊維以外に、炭素繊維、ァスベスト繊
維、チタン酸繊維など繊維状無機物はいずれも適用でき
る。In addition to the commonly used glass fibers, the fibrous reinforcing filler used in the present invention may be any fibrous inorganic material such as carbon fiber, asbestos fiber, or titanate fiber.
添加量としては１０〜５０重量％の範囲が好適で、１の
重量％より少ないと物性が低く又５０重量％を越えると
成形時の流動性が低下するので不適当である。本発明を
実施するに際してその実施態様の一例を示すと、ポリエ
チレンテレフタレートに対して所定量のトリアジン擬を
有するェポキシ化合物と繊維状補強充填剤を添加し、タ
ンブラー等適当な混合装置で混合した後、溶融混練して
強化ポリヱチレンテレフタレートとする。The amount added is preferably in the range of 10 to 50% by weight; if it is less than 1% by weight, the physical properties will be poor, and if it exceeds 50% by weight, the fluidity during molding will be reduced, which is inappropriate. As an example of the embodiment of the present invention, an epoxy compound having a predetermined amount of triazine and a fibrous reinforcing filler are added to polyethylene terephthalate, and after mixing with a suitable mixing device such as a tumbler, The mixture is melt-kneaded to form reinforced polyethylene terephthalate.
ここで溶融混練には、バンバリーミキサー、フアーレル
ミキサー、押出機など通常用いられる混練装置はいずれ
も使用可能である。工程の簡便性から押出機が好適であ
る。押出条件としては２６５〜３００００で平均滞在時
２〜１０分間が適当である。実施例１〜７ 比較例１〜
１０
テトラクロルェタンとフェノールの等重量混合溶媒中２
５ｑｏで測定した固有粘度が０．７２のポリエチレンテ
レフタレート７の郡を２側のガラスチョップドストラン
ド３技部の混合物に表−１に示した各種のェポキシ化合
物を添加し、Ｌ／Ｄ＝２５の３比側めノンベント押出機
により２８０００で押出しべレットを得た。For melt-kneading, any commonly used kneading apparatus such as a Banbury mixer, a Farrel mixer, or an extruder can be used. An extruder is preferable because of the simplicity of the process. Appropriate extrusion conditions are 265 to 30,000 and an average residence time of 2 to 10 minutes. Examples 1-7 Comparative examples 1-
10 in an equal weight mixed solvent of tetrachloroethane and phenol 2
Various epoxy compounds shown in Table 1 were added to a mixture of glass chopped strands and 3 parts of polyethylene terephthalate 7 with an intrinsic viscosity of 0.72 measured at 5qo, and 3 with L/D = 25 was added. Extruded pellets were obtained using a non-vented extruder at 28,000 mm.
これを５オンスの３６側めスクリューィンラィン型射出
成形材によりシリンダー温度２８０℃、金型温度８０℃
で射出成形して、３．２肋厚１号ダンベル、３．２側厚
熱変形試片および６．４側厚熱変形試片をつくり物性を
評価した。結果を表一１に示す。表−１
（注）
引張強度：３．２仇の厚１号ダンベルよりＡＳＴＭＤ
６３８で測定
曲げ強度：３．２の仇厚熱変形試片よりＡＳＴＭＤ７９
０で測定※上燈綴り１０：不溶化がおこって成形不可能
構 造：１〜３４〜５
６：
７：
８：
（トリグリシジルイソシアヌレート）
９：
（Ｎ‐メチル‐Ｎ ，Ｎ′−ジグリシジルイソシアヌレ
ート）表−１の結果より、各種ェポキシ化合物の中では
、トリグリシジルイソシアヌレートやＮーメチル−Ｎ′
，Ｎ′−ジグリシジルイソシアヌレートの様にトリアジ
ン環を有するェポキシ化合物が顕著に高い機械的強度を
示している。This was molded using 5 ounces of 36-sided screw-in line type injection molding material at a cylinder temperature of 280°C and a mold temperature of 80°C.
A 3.2 rib thickness No. 1 dumbbell, a 3.2 side thickness thermally deformed specimen, and a 6.4 side thickness thermally deformed specimen were made by injection molding, and the physical properties were evaluated. The results are shown in Table 1. Table-1 (Note) Tensile strength: ASTMD from 3.2mm thick No. 1 dumbbell
Bending strength measured with 638: ASTM D79 from a 3.2 thick thermally deformed specimen
Measured at 0 *Upper light spelling 10: Structure that cannot be formed due to insolubilization: 1-34-5 6: 7: 8: (triglycidyl isocyanurate) 9: (N-methyl-N,N'-diglycidyl Isocyanurate) From the results in Table 1, among various epoxy compounds, triglycidyl isocyanurate and N-methyl-N'
, N'-diglycidyl isocyanurate and other epoxy compounds having a triazine ring exhibit significantly high mechanical strength.
Claims (1)
重量％のトリアジン環を有するエポキシ化合物と全組成
物中１０〜５０重量％の繊維状補強充填剤からなる強化
ポリエチレンテレフタレート組成物。1 0.05 to 3 for polyethylene terephthalate
A reinforced polyethylene terephthalate composition comprising % by weight of an epoxy compound having triazine rings and 10 to 50% by weight of a fibrous reinforcing filler based on the total composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5840277A JPS6019334B2 (en) | 1977-05-20 | 1977-05-20 | Reinforced polyethylene terephthalate composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5840277A JPS6019334B2 (en) | 1977-05-20 | 1977-05-20 | Reinforced polyethylene terephthalate composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53143649A JPS53143649A (en) | 1978-12-14 |
| JPS6019334B2 true JPS6019334B2 (en) | 1985-05-15 |
Family
ID=13083356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5840277A Expired JPS6019334B2 (en) | 1977-05-20 | 1977-05-20 | Reinforced polyethylene terephthalate composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6019334B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531879Y2 (en) * | 1987-06-30 | 1993-08-17 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT372382B (en) * | 1980-08-14 | 1983-09-26 | Henkel Kgaa | METHOD FOR PRODUCING NEW OXIRANYLISOCYANURIC ACID COMPOUNDS |
| JPS60197674A (en) * | 1984-03-21 | 1985-10-07 | Nippon Kasei Kk | Isocyanuric acid derivative, its preparation and carcinostatic agent |
| US4990549A (en) * | 1989-10-16 | 1991-02-05 | General Electric Company | Glass fiber reinforced polyester molding compound with improved physical strength properties |
| US5122551A (en) * | 1990-05-14 | 1992-06-16 | General Electric Company | Glass filled copolyether-polyester compositions |
| JPH05506056A (en) * | 1991-08-27 | 1993-09-02 | ゼネラル・エレクトリック・カンパニイ | Filler-containing polyester composition with high melt viscosity |
| JP2530318Y2 (en) * | 1991-12-25 | 1997-03-26 | 丸茂電機株式会社 | Spotlight |
| CN104448729A (en) * | 2014-11-24 | 2015-03-25 | 天津市大城工贸有限公司 | Carbon fiber composite material for bicycle and preparation method thereof |
| JP6483588B2 (en) * | 2015-07-14 | 2019-03-13 | 四国化成工業株式会社 | Isocyanurate compound, resin composition and use thereof |
| JP6513012B2 (en) * | 2015-09-11 | 2019-05-15 | 四国化成工業株式会社 | Diglycidyl isocyanurate compound, resin composition and use thereof |
-
1977
- 1977-05-20 JP JP5840277A patent/JPS6019334B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531879Y2 (en) * | 1987-06-30 | 1993-08-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53143649A (en) | 1978-12-14 |
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