KR19990032297A - Rubber composition for vulcanizing bladder - Google Patents
Rubber composition for vulcanizing bladder Download PDFInfo
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- KR19990032297A KR19990032297A KR1019970053297A KR19970053297A KR19990032297A KR 19990032297 A KR19990032297 A KR 19990032297A KR 1019970053297 A KR1019970053297 A KR 1019970053297A KR 19970053297 A KR19970053297 A KR 19970053297A KR 19990032297 A KR19990032297 A KR 19990032297A
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Abstract
본 발명은 가류 블레더(bladder)용 고무조성물에 관한 것으로, 좀더 상세하게는 타이어 가류용 블레더 고무조성물에 공정조제를 첨가시켜 블레더의 제조공정 및 물성을 향상시킨 고무조성물에 관한 것이다.The present invention relates to a rubber composition for vulcanizing bladder, and more particularly to a rubber composition for improving the manufacturing process and physical properties of the bladder by adding a process aid to the tire vulcanizing bladder rubber composition.
본 발명의 목적을 가류용 블레더 고무조성물에 공정조제를 첨가시켜 블레더의 제조공정성 및 물성을 향상시킨 가류 블레더용 고무조성물을 제공함에 있다.It is an object of the present invention to provide a rubber composition for vulcanizing bladder by adding a process aid to the vulcanizing bladder rubber composition to improve the manufacturing process properties and physical properties of the bladder.
본 발명은 고무성분으로 부틸고무와 합성고무 보강충진제로 카본블랙, 가류활성제로 산화아연 및 스테아린산, 공정오일 및 가류제로 구성된 블레더 고무조성물에 부틸고무 100 phr에 대하여 공정조제로 지방산 유도체를 3-5 phr 함유하는 가류용 블레더 고무조성물임을 특징으로 한다.The present invention relates to a fatty acid derivative as a process aid for butyl rubber 100 phr in a bladder rubber composition comprising butyl rubber and synthetic rubber reinforcing filler as a rubber component, carbon black as a vulcanizing agent, zinc oxide and stearic acid as a vulcanizing agent, process oil and a vulcanizing agent, and 3- It is characterized by a bladder rubber composition for vulcanization containing 5 phr.
Description
본 발명은 가류 블레더(bladder)용 고무조성물에 관한 것으로, 좀더 상세하게는 타이어 가류용 블레더 고무조성물에 공정조제를 첨가시켜 블레더의 제조공정 및 물성을 향상시킨 고무조성물에 관한 것이다.The present invention relates to a rubber composition for vulcanizing bladder, and more particularly to a rubber composition for improving the manufacturing process and physical properties of the bladder by adding a process aid to the tire vulcanizing bladder rubber composition.
타이어 가류용 블레더는 내 피로특성과 내 균열 특성이 높아야 하고, 성장이 적어야 하며, 또한 타이어의 인너라이너와의 점착성이나 공가류도 등이 낮아야 하는데, 종래의 블레더는 블레더 표면의 균열성장에 의한 조기 사고 및 스코치 불안정성, 점착성에 의한 인너라이너의 품질문제 발생 등의 문제점을 지니고 있다.Tire vulcanization bladder should have high fatigue resistance and crack resistance, low growth, and low tire adhesion and coercivity.In conventional bladder, the bladder surface crack growth Problems such as premature accidents, scorch instability, and inner liner quality problems caused by stickiness.
본 발명자 들은 이러한 선행기술 상의 문제점을 해결하기 위한 연구를 수행하던중, 타이어 가류용 블레더 고무조성물에 공정조제로서 지방산의 금속유도체를 첨가하여 가류 블레더의 스코치 안정성, 점도하락에 의한 고무 흐름성 증가로 제조고정성 및 물성개선을 이룰수 있음을 알아내고 본 발명을 완성하였다.The inventors of the present invention, while conducting research to solve the problems in the prior art, by adding a metal derivative of fatty acid as a process aid to the tire bleeding bladder rubber composition, the scorch stability of the vulcanizing bladder, rubber flowability due to viscosity drop The present invention was completed by finding out that the manufacturing stability and physical property improvement can be achieved by increasing.
따라서, 본 발명의 목적을 가류용 블레더 고무조성물에 공정조제를 첨가시켜 블레더의 제조공정성 및 물성을 향상시킨 가류 블레더용 고무조성물을 제공함에 있다.Accordingly, an object of the present invention is to provide a rubber composition for vulcanizing bladder by adding a process aid to the vulcanizing bladder rubber composition to improve the manufacturing processability and physical properties of the bladder.
본 발명에 의한 가류용 블레더 고무조성물은 공지의 블레더 고무조성물에 공정조제로지방산의 금속유도체를 함유함을 특징으로 하는데, 본 발명에 사용된 공정조제로는 지방산 아연염(Zn Soap) 또는 지방산 칼륨염(Potassium Soap)으로서, 본 공정조제는 고무의 결합사슬을 끊어주는 기존의 공정조제와는 달리 고무의 틈새를 채워주어 윤활제로 작용하므로 블레더의 몰드에서 특히 인젝터 타입 몰드(Injection Type Mold)를 위한 고무의 스트립 압출속도 및 고무가 가류 몰드를 채우는 속도를 증가시키는 등 공정성을 개선시킴과 동시에 블레더의 동적 내 피로 특성을 향상시킨다.The bleeding rubber composition for vulcanization according to the present invention is characterized in that it contains a metal derivative of fatty acid as a process aid in a known blender rubber composition, and the process aid used in the present invention is a fatty acid zinc salt (Zn Soap) or As a potassium salt (Potassium Soap), this process aid fills the gap of rubber and acts as a lubricant, unlike the existing process aid that breaks the bond chain of rubber. It improves processability, such as increasing the strip extrusion rate of rubber and the rate at which rubber fills the vulcanization mold, and at the same time improves the fatigue resistance of the bladder.
본 발명에 의한 가류용 블레더 고무조성물은 고무성분으로 부틸고무와 합성고무 보강충진제로 카본블랙, 가류활성제로 산화아연 및 스테아린산, 공정일, 가류제 및 공정조제로 지방산 유도체를 함유하는데, 지방산 유도체의 함량은 부틸고무 100 phr에 대하여 3-5phr이 바람직하다.The bleeding rubber composition for vulcanization according to the present invention contains carbon black as a butyl rubber and synthetic rubber reinforcing filler as a rubber component, zinc oxide and stearic acid as a vulcanizing activator, a process date, a vulcanizing agent and a process aid, and a fatty acid derivative. The content of is preferably 3-5 phr based on 100 phr of butyl rubber.
이하 실시예 및 비교예를 통하여 본 발명을 보다 상세히 설명한다. 그러나, 본 발명에 이들 실시예에 국한되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the present invention is not limited to these examples.
(실시예 1)(Example 1)
다음의 표 1에 제시된 조성비와 같이 고무성분, 보강충진제, 공정오일, 가류활성제, 가류제 및 공정조제로 지방산 아연염(Zn Soap)을 첨가하여 밴버리 믹서에서 배합하고 160℃의 온도에서 방출하였다.As shown in the following Table 1, the zinc component (Zn Soap) was added as a rubber component, a reinforcing filler, a process oil, a vulcanizing agent, a vulcanizing agent, and a processing aid, and then blended in a Banbury mixer and released at a temperature of 160 ° C.
생성된 고무조성물의 가황특성 및 물성시험을 ASTM 표준방법에 의해 실시하였는데, 본 발명에 사용한 시험방법으로는 점도시험은 ASTM D1646-93, 가류시험은 ASTM D2084-91, 인장 및 경도시험은 ASTM D 2240-91과 ASTM D412-92, 동적피로특성은 ASTM D-4482-85의 방법으로 측정하였다.The vulcanization and physical property tests of the resulting rubber compositions were carried out by the ASTM standard method. As the test method used in the present invention, the viscosity test was ASTM D1646-93, the vulcanization test was ASTM D2084-91, and the tensile and hardness tests were ASTM D. 2240-91 and ASTM D412-92, dynamic fatigue properties were measured by the method of ASTM D-4482-85.
생성된 고무조성물의 조성비와 가황특성 및 물성시험 결과를 다음의 표 1 및 표 2에 나타내었다.Composition ratios, vulcanization characteristics, and physical property test results of the resulting rubber compositions are shown in Tables 1 and 2 below.
(실시예 2)(Example 2)
부틸고무 100 phr에 대하여 지방산 아연염(Zn Soap)을 5 phr로 하는 것 이외에는 실시예 1과 동일하게 실시하여 고무조성물을 제조하였는바, 그 고무조성물의 배합조성비와 가황특성 및 물성시험 결과를 표 1 및 표 2에 나타내었다.A rubber composition was prepared in the same manner as in Example 1 except that the fatty acid zinc salt (Zn Soap) was set to 5 phr for 100 phr of butyl rubber, and the mixture composition ratio, vulcanization characteristics, and physical property test results of the rubber composition were shown in the table. 1 and Table 2.
(실시예 3)(Example 3)
공정조제로 지방산 칼륨염(Potassium Soap)을 사용하는 것 이외에는 실시예 1과 동일하게 실시하여 조성물을 제조하였는바, 그 고무조성물의 배합조성비가 가황특성 및 물성시험 결과를 표 1 및 표 2에 나타내었다.A composition was prepared in the same manner as in Example 1 except that fatty acid potassium salt (Potassium Soap) was used as a process aid, and the composition ratio of the rubber composition was shown in Table 1 and Table 2. It was.
(실시예 4)(Example 4)
부틸고무 100 phr에 대하여 지방산 칼륨염(Potassium Soap)을 5 phr로 하는 것 이외에는 실시예 3과 동일하게 실시하여 고무조성물을 제조하였는바, 그 고무조성물의 배합조성비와 가황특성 및 물성시험 결과를 표 1 및 표 2에 나타내었다.A rubber composition was prepared in the same manner as in Example 3 except that the fatty acid potassium salt was 5 phr for 100 phr of butyl rubber. The compound composition ratio, vulcanization characteristics, and physical property test results of the rubber composition were shown in the table. 1 and Table 2.
(비교예)(Comparative Example)
공정조제를 사용하지 않은 것 이외에는 실시예 1과 동일하게 실시하여 고무조성물을 제조하였는바, 그 고무조성물의 배합조성비와, 가황특성 및 물성시험 결과를 표 1 및 표 2에 나타내었다.A rubber composition was prepared in the same manner as in Example 1 except that no process aid was used. The compound composition ratio, vulcanization characteristics, and physical property test results of the rubber composition are shown in Tables 1 and 2.
[표 1] 고무조성물의 조성비[Table 1] Composition ratio of rubber composition
* 가류조제 ; 실시예 1 및 실시예 2 : 지방산 아연염, 실시예 3 : 및 실시예 4 : 지방산 칼륨염* Vulcanization preparation; Examples 1 and 2: fatty acid zinc salts, Example 3: and Example 4: fatty acid potassium salts
[표 2] 물리적 특성시험 결과[Table 2] Physical property test results
* 노화조건 : 105℃, 1일* Aging condition: 105 ℃, 1 day
본 발명에 의한 가류 블레더용 고무조성물은 표 2에서 보는 바와 같이, 지방산 유도체를 공정조제로 사용함으로써 고무의 점도를 현격히 감소시켜 윤활제로서 작용하여, 인젝터 몰드상에서 고무의 흐름성이 증가되었고, 스코치 시간이 증가되어 공정상의 안정성을 이룰수 있으며, 또한 인장 물성에서 보는 바와 같이 물성의 향상, 특히 동적 내 피로특성이 크게 향상되었다.As shown in Table 2, the rubber composition for vulcanizing bladder according to the present invention, by using a fatty acid derivative as a process aid, significantly reduced the viscosity of the rubber to act as a lubricant, the flow of rubber on the injector mold increased, Scorching time This increases the process stability, and as shown in the tensile properties improved physical properties, particularly dynamic fatigue resistance is greatly improved.
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KR1019970053297A KR19990032297A (en) | 1997-10-17 | 1997-10-17 | Rubber composition for vulcanizing bladder |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100466384B1 (en) * | 2002-05-20 | 2005-01-13 | 동일고무벨트주식회사 | Thermoplastic elastomer composition for shock absorbing |
KR100553187B1 (en) * | 2004-06-15 | 2006-02-22 | 금호타이어 주식회사 | Cure bladder compound having improved thermal, crack and steam aging resistance |
KR100656552B1 (en) * | 2005-03-23 | 2006-12-13 | 금호타이어 주식회사 | rubber composition improved dispersion for tire |
-
1997
- 1997-10-17 KR KR1019970053297A patent/KR19990032297A/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100466384B1 (en) * | 2002-05-20 | 2005-01-13 | 동일고무벨트주식회사 | Thermoplastic elastomer composition for shock absorbing |
KR100553187B1 (en) * | 2004-06-15 | 2006-02-22 | 금호타이어 주식회사 | Cure bladder compound having improved thermal, crack and steam aging resistance |
KR100656552B1 (en) * | 2005-03-23 | 2006-12-13 | 금호타이어 주식회사 | rubber composition improved dispersion for tire |
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