부틸고무는 내노화성 및 내오존성이 우수하나, 가황 한계가 낮고 이소부틸렌의 메틸기 영향으로 분자사슬이 움직이기 어렵기 때문에 반발탄성이 낮다. 부틸고무의 이러한 성질은 높은 감쇠(Damping)특성이 요구되는 산업용 부품소재로의 적용을 가능하게 한다. 본 연구에서는 일반 부틸고무(IIR)와 클로로부틸고무(CIIR)을 사용하여 가교시스템과 충전제 함량에 따른 동특성 거동을 비교하였다. 동특성은 Dynamic mechanical analysis(...
부틸고무는 내노화성 및 내오존성이 우수하나, 가황 한계가 낮고 이소부틸렌의 메틸기 영향으로 분자사슬이 움직이기 어렵기 때문에 반발탄성이 낮다. 부틸고무의 이러한 성질은 높은 감쇠(Damping)특성이 요구되는 산업용 부품소재로의 적용을 가능하게 한다. 본 연구에서는 일반 부틸고무(IIR)와 클로로부틸고무(CIIR)을 사용하여 가교시스템과 충전제 함량에 따른 동특성 거동을 비교하였다. 동특성은 Dynamic mechanical analysis(DMA)를 이용해 Storage modulus, Loss modulus 및 Tan delta의 값을 측정하였다. 그 결과 일반 부틸고무 및 클로로부틸고무에서 충전제의 함량 및 가교시스템에 따라 동특성에 차이가 있는 것을 확인하였다. 이러한 연구결과는 향후 부틸고무의 감쇠 특성을 분석하는 데 기초 데이터로 활용이 가능할 것으로 판단된다.
부틸고무는 내노화성 및 내오존성이 우수하나, 가황 한계가 낮고 이소부틸렌의 메틸기 영향으로 분자사슬이 움직이기 어렵기 때문에 반발탄성이 낮다. 부틸고무의 이러한 성질은 높은 감쇠(Damping)특성이 요구되는 산업용 부품소재로의 적용을 가능하게 한다. 본 연구에서는 일반 부틸고무(IIR)와 클로로부틸고무(CIIR)을 사용하여 가교시스템과 충전제 함량에 따른 동특성 거동을 비교하였다. 동특성은 Dynamic mechanical analysis(DMA)를 이용해 Storage modulus, Loss modulus 및 Tan delta의 값을 측정하였다. 그 결과 일반 부틸고무 및 클로로부틸고무에서 충전제의 함량 및 가교시스템에 따라 동특성에 차이가 있는 것을 확인하였다. 이러한 연구결과는 향후 부틸고무의 감쇠 특성을 분석하는 데 기초 데이터로 활용이 가능할 것으로 판단된다.
Rubber has viscoelastic properties, and having the most unusual properties among rubber properties has elasticity that cannot be compared with any other material, and unlike other materials, it has viscosity It is a point. It is widely used in dynamic conditions to attenuate shocks, vibrations, etc....
Rubber has viscoelastic properties, and having the most unusual properties among rubber properties has elasticity that cannot be compared with any other material, and unlike other materials, it has viscosity It is a point. It is widely used in dynamic conditions to attenuate shocks, vibrations, etc. externally received from the viscoelastic properties of these rubbers. Among them, butyl rubber is excellent in aging resistance and ozone resistance, and its vulcanization limit is low, and its rebound resilience is low because the molecular chain is difficult to move due to the influence of the methyl group of isobutylene. This property of butyl rubber makes it possible to apply it as an industrial component material requiring high attenuation (Damping) characteristics. In this study, using the common butyl rubber (IIR) and chlorobutyl rubber (CIIR), the crosslinking agents Sulfur and Resin were used to compare dynamic behavior corresponding to the contents of fillers Talc and CaCO3. The optimum vulcanization time (T90) of the compound was measured via a Flat die rheometer and molded. IIR, CIIR Measured using a universal testing machine (UTM) to determine tensile strength and elongation. The tensile strength increased and the elongation ratio decreased until the content of the inorganic filler reached 30 phr. Tensile strength and elongation at the time of addition of 80 phr were all lowered. Dynamic characteristics were measured using Dynamic mechanical analysis (DMA). Storage modulus, loss modulus, both IIR and CIIR composite modulus tended to increase as the content of inorganic filler increased, and it was confirmed that Tan δ decreases as the content of inorganic filler increases. It was found that the viscosity increases as the content of the inorganic filler increases. These research results are judged to be usable as basic data for analyzing the damping characteristics of butyl rubber in the future.
Rubber has viscoelastic properties, and having the most unusual properties among rubber properties has elasticity that cannot be compared with any other material, and unlike other materials, it has viscosity It is a point. It is widely used in dynamic conditions to attenuate shocks, vibrations, etc. externally received from the viscoelastic properties of these rubbers. Among them, butyl rubber is excellent in aging resistance and ozone resistance, and its vulcanization limit is low, and its rebound resilience is low because the molecular chain is difficult to move due to the influence of the methyl group of isobutylene. This property of butyl rubber makes it possible to apply it as an industrial component material requiring high attenuation (Damping) characteristics. In this study, using the common butyl rubber (IIR) and chlorobutyl rubber (CIIR), the crosslinking agents Sulfur and Resin were used to compare dynamic behavior corresponding to the contents of fillers Talc and CaCO3. The optimum vulcanization time (T90) of the compound was measured via a Flat die rheometer and molded. IIR, CIIR Measured using a universal testing machine (UTM) to determine tensile strength and elongation. The tensile strength increased and the elongation ratio decreased until the content of the inorganic filler reached 30 phr. Tensile strength and elongation at the time of addition of 80 phr were all lowered. Dynamic characteristics were measured using Dynamic mechanical analysis (DMA). Storage modulus, loss modulus, both IIR and CIIR composite modulus tended to increase as the content of inorganic filler increased, and it was confirmed that Tan δ decreases as the content of inorganic filler increases. It was found that the viscosity increases as the content of the inorganic filler increases. These research results are judged to be usable as basic data for analyzing the damping characteristics of butyl rubber in the future.
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