KR930005150B1 - Polyamide resin composition - Google Patents
Polyamide resin composition Download PDFInfo
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- KR930005150B1 KR930005150B1 KR1019900009433A KR900009433A KR930005150B1 KR 930005150 B1 KR930005150 B1 KR 930005150B1 KR 1019900009433 A KR1019900009433 A KR 1019900009433A KR 900009433 A KR900009433 A KR 900009433A KR 930005150 B1 KR930005150 B1 KR 930005150B1
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- polyamide resin
- resin composition
- styrene
- caprolactam
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- 0 C=C(C(*C(O)=O)*C(O)=O)c1ccccc1 Chemical compound C=C(C(*C(O)=O)*C(O)=O)c1ccccc1 0.000 description 1
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- 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
Abstract
Description
본 발명은 열가소성 수지로서 유연성이 우수하고 특히 내충격성이 뛰어난 폴리아미드 수지 조성물에 관한 것이다.The present invention relates to a polyamide resin composition having excellent flexibility as a thermoplastic resin and particularly excellent impact resistance.
일반적으로 폴리아미드-6, 폴리아미드-66 등과 같은 폴리아미드는 제반물성이 우수해 여러 분야에 광범위하게 적용되고 있지만, 이들 폴리아미드가 결정성 고분자이기 때문에 내충격성이 매우 약한 단점이 있어 각종 제품에의 적용에 많은 제한을 받아왔다. 따라서 폴리아미드 수지의 내충격성을 향상시키는 방법으로서 가장 보편적으로 사용되는 것은 고무 성분 또는 아크릴/부타디엔/스티렌의 공중합체를 첨가하여 이들이 충격을 흡수함으로써 내충격성을 향상시키는 방법을 사용하여 왔다.In general, polyamides such as polyamide-6 and polyamide-66 are widely applied in various fields because of their excellent physical properties, but since these polyamides are crystalline polymers, they have a weak impact resistance. Has been subject to many limitations. Therefore, the most commonly used method of improving the impact resistance of polyamide resins has been to use a method of improving the impact resistance by adding a rubber component or a copolymer of acrylic / butadiene / styrene to absorb shocks.
그러나 이 방법은 첨가제와 폴리아미드 수지와의 계면 접착력이 불량하여 충격이 계면으로 전달되어 충분한 내충격 효과를 기대하기 어려울 뿐만 아니라 이런 결점을 보완하는 2차 가공을 거쳐야 하는 단점이 있다.However, this method has a disadvantage in that it is difficult to expect a sufficient impact resistance as the impact is transmitted to the interface due to poor interfacial adhesion between the additive and the polyamide resin, and also has to undergo secondary processing to compensate for this drawback.
본 발명은 종래의 이러한 문제점을 해결하기 위해 카프로락탐 중합시 스티렌-그라프트 거대 단량체와 지방족 디아민을 투입하여 유연성이 우수하고 특히 내충격성이 뛰어난 폴리아미드수지 조성물을 제공하는데 그 목적이 있다.The present invention is to provide a polyamide resin composition excellent in flexibility and particularly excellent impact resistance by adding a styrene-graft macromonomer and aliphatic diamine during the caprolactam polymerization in order to solve the conventional problems.
이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.
본 발명은 섬유 및 플라 스틱에 사용되는 열가소성 수지로서, ε-카프로락탐 80 내지 95중량%, 스티렌-그라프트 단량체와 헥사메틸렌디아민이 5 내지 20중량%로 첨가되어서 된 폴리아미드 수지 조성물을 그 특징으로 한다.The present invention is a thermoplastic resin used for fibers and plastics, the polyamide resin composition comprising 80 to 95% by weight of ε-caprolactam, 5 to 20% by weight of styrene-graft monomer and hexamethylenediamine It is done.
본 발명을 더욱 상세하게 설명하면 다음과 같다.The present invention is described in more detail as follows.
본 발명에서 카프로락탐과 공중합되는 산 성분으로서는 하기의 일반식(Ⅰ)로 표시되는 스티렌-그라프트 거대 단량체를 사요하고 지방족 디아민으로는 헥사메틸렌디아민, 헵타메틸렌디아민 또는 그 혼합물을 사용할 수 있다.As the acid component copolymerized with caprolactam in the present invention, a styrene-grafted macromonomer represented by the following general formula (I) is used, and as the aliphatic diamine, hexamethylenediamine, heptamethylenediamine or a mixture thereof can be used.
윗 식에서, n는 100 내지 300의 정수임.Wherein n is an integer from 100 to 300.
상기 두 성분을 투입하는 방법으로는 각 성분 단독, 또는 두 성분을 혼합하여 투입할 수 있다.As a method of adding the two components, each component alone or a mixture of the two components may be added.
또, 본 발명의 효과를 얻기 위한 상기 두 성분의 적절한 투입양으로는 카프로락탐과 두 성분을 합친 양에 대하여 5 내지 20중량%가 투입되는 것이 적당하다. 만약 투입량이 5중량% 미만일 경우는 충분한 내 충격 효과를 기대하기 어렵고, 또 20중량%를 초과하여 투입할 경우는 열변형 온도가 너무 낮기 때문에 플라스틱으로서의 용도에 부적합하다.In addition, as an appropriate amount of the two components for achieving the effect of the present invention, it is appropriate that 5 to 20% by weight based on the combined amount of caprolactam and the two components. If the added amount is less than 5% by weight, it is difficult to expect a sufficient impact resistance, and if the added amount exceeds 20% by weight, the heat deformation temperature is too low, which is not suitable for use as a plastic.
이와 같이 제조된 폴리아미드 수지는 종래의 2차 가공을 거치지 않고도 유연성 및 내충격성이 현저히 향상된 효과가 나타나게 된다.The polyamide resin prepared as described above has a markedly improved effect on flexibility and impact resistance without undergoing conventional secondary processing.
이하, 본 발명을 실시예에 의거하여 더욱 상세히 설명하면 다음과 같으며 실험 결과는 표 1에 나타내었다.Hereinafter, the present invention will be described in more detail based on the following examples, and the experimental results are shown in Table 1.
[실시예 1]Example 1
통상의 폴리아미드 반응관에 ε-카프로락탐 1500g, 헥사메틸렌디아민 1.67g, 스티렌-그라프트 단량체(n=140)를 86.3g, 내열제로 이가녹스 B1171(스위스, Ciba-Geigy) 3g을 투입하고 160g의 물을 첨가하여 1.5시간 동안 관의 온도를 120℃, 압력을 17.5Kg/cm2로 상승시키며 교반하에서 반응물을 균일하게 만든다.Into a conventional polyamide reaction tube, 1500 g of ε-caprolactam, 1.67 g of hexamethylenediamine, 86.3 g of styrene-graft monomer (n = 140), and 3 g of Iganox B1171 (Ciba-Geigy) were added as a heat-resistant agent and 160 g. Water was added to raise the temperature of the tube to 120 ° C. and the pressure to 17.5 Kg / cm 2 for 1.5 hours, making the reaction uniform under stirring.
관내의 온도를 245℃로 승온시키면서 생성된 휘발성분 및 수증기를 유출시켜 압력을 17.5Kg/cm2로 유지하면서 2시간 동안 반응을 진행시킨다. 축중합 반응을 완전히 진행시키기 위해서 관내의 온도를 265℃로 승온시키고 압력을 서서히 상압으로 내리면서 1.5시간 동안 반응을 시키고 분자량을 높히기 위해서 상압하에서 0.5시간 유지한다.The reaction proceeds for 2 hours while maintaining the pressure at 17.5 Kg / cm 2 by distilling volatiles and water vapor generated while raising the temperature in the tube to 245 ° C. In order to fully advance the polycondensation reaction, the temperature in the tube was raised to 265 ° C., and the reaction was continued for 1.5 hours while the pressure was gradually lowered to normal pressure.
이하 교반을 중지하고 질소를 투입하여 반응물을 토출하여 칩상태의 폴리아미드 수지를 제조하였다. 이 폴리아미드 수지를 80℃에서 6시간 건조 후 시차 열량 분석기로 20℃/분의 승온 속도로 유리전이 온도를 측정하고 ASTM D-638, D-790, D-648, D-256 의거하여 인장강도, 신도, 열병형 온도, 충격강도를 각각 측정하였다.The stirring was stopped and nitrogen was added to discharge the reactants, thereby preparing a polyamide resin in a chip state. After drying the polyamide resin at 80 ° C for 6 hours, the glass transition temperature was measured at 20 ° C / min using a differential calorimeter and tensile strength was measured according to ASTM D-638, D-790, D-648 and D-256. , Elongation, fever temperature and impact strength were measured, respectively.
[실시예 2]Example 2
투입 조성을 다음과 같이 변화시키고 실시예 1과 동일한 방법으로 실시하였다.The dosage composition was changed as follows and carried out in the same manner as in Example 1.
ε-카프로락탐 : 1400gε-caprolactam: 1400 g
헵타메틸렌디아민 : 5.4gHeptamethylenediamine: 5.4 g
스티렌-그라프트 단량체(n=140) : 274.6gStyrene-graft monomer (n = 140): 274.6 g
물 : 160gWater: 160g
이가녹스 B1171(스위스, Ciba-Geigy) : 3gIganox B1171 (Ciba-Geigy): 3g
[비교예 1]Comparative Example 1
투입 조성을 다음과 같이 변화시키고 실시예 1과 동일한 제조방법으로 실시하였다.The charged composition was changed as follows and carried out by the same production method as in Example 1.
ε-카프로락탐 : 1500gε-caprolactam: 1500g
헥사메틸렌디아민 : 0.57gHexamethylenediamine: 0.57 g
스티렌-그라프트 단량체(n=140) : 29.43gStyrene-graft monomer (n = 140): 29.43 g
물 : 160gWater: 160g
이가녹스 B1171(스위스, Ciba-Geigy) : 3gIganox B1171 (Ciba-Geigy): 3g
[비교예 2]Comparative Example 2
투입 조성을 다음과 같이 변화시키고 실시예 1과 동일한 제조방법으로 실시하였다.The charged composition was changed as follows and carried out by the same production method as in Example 1.
ε-카프로락탐 : 1250gε-caprolactam: 1250 g
헵타메틸렌디아민 : 7.9gHeptamethylenediamine: 7.9 g
스티렌-그라프트 단량체(n=140) : 408.1gStyrene-graft monomer (n = 140): 408.1 g
물 : 160gWater: 160g
이가녹스 B1171(스위스, Ciba-Geigy) : 3gIganox B1171 (Ciba-Geigy): 3g
[비교예 3]Comparative Example 3
투입 조성을 다음과 같이 변화시키고 실시예 1과 동일한 방법으로 실시하였다.The dosage composition was changed as follows and carried out in the same manner as in Example 1.
ε-카프로락탐 : 1250gε-caprolactam: 1250 g
물 : 160gWater: 160g
이가녹스 B1171(스위스, Ciba-Geigy) : 3gIganox B1171 (Ciba-Geigy): 3g
[표 1]TABLE 1
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019900009433A KR930005150B1 (en) | 1990-06-26 | 1990-06-26 | Polyamide resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019900009433A KR930005150B1 (en) | 1990-06-26 | 1990-06-26 | Polyamide resin composition |
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| Publication Number | Publication Date |
|---|---|
| KR920000837A KR920000837A (en) | 1992-01-29 |
| KR930005150B1 true KR930005150B1 (en) | 1993-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019900009433A KR930005150B1 (en) | 1990-06-26 | 1990-06-26 | Polyamide resin composition |
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| KR (1) | KR930005150B1 (en) |
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- 1990-06-26 KR KR1019900009433A patent/KR930005150B1/en active IP Right Grant
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| Publication number | Publication date |
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| KR920000837A (en) | 1992-01-29 |
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