The invention belongs to the technical field of rubber materials, and discloses a modified epoxidized natural rubber material and a preparation method and application thereof.The modified epoxidized natural rubber material is prepared through the following steps that ENR latex is placed in a stirring reactor to be stirred, anacardol emulsion is slowly added into the ENR latex stirred at a high speed, stirring is conducted at a high speed, and a mixture is obtained; the preparation method comprises the following steps: modifying and reacting at room temperature, enabling the modified epoxidized natural latex to be in direct contact with high-temperature steam, instantaneously destabilizing a surfactant in the latex through high heat carried by the steam, further flocculating the latex, standing for a period of time after flocculation, crushing and granulating a rubber block, and soaking in deionized water to remove an emulsifier, thereby obtaining the natural latex. And carrying out heat treatment on the rubber particles, rolling the rubber particles into rubber sheets on a double-roller mill after heat treatment, and drying the rubber sheets to a constant weight to obtain the modified epoxidized natural rubber material HSENR. The prepared modified epoxidized natural rubber has wet skid resistance, low rolling resistance, high strength and certain aging resistance at the same time.

    本发明属于橡胶材料技术领域,公开了一种改性环氧化天然橡胶材料及其制备方法和应用,本发明的改性环氧化天然橡胶材料通过以下步骤制备:将ENR乳胶置于搅拌反应器中进行搅拌,将腰果酚乳液缓慢加入高速搅拌的ENR乳胶中,在室温下改性,反应完成后,使改性的环氧化天然乳胶与高温水蒸气直接接触,通过蒸汽携带的高热量使胶乳中的表面活性剂瞬间失稳,进而使胶乳絮凝,絮凝后放置一段时间后,将橡胶块压碎,成粒,在去离子水中浸泡以去除乳化剂,橡胶颗粒再进行热处理,热处理后在双辊轧机上揉皱成橡胶片,干燥至恒定重量获得改性环氧化天然橡胶材料HSENR。本发明制得的改性环氧化天然橡胶同时具有抗湿滑性、低滚阻和高强度且具有一定耐老化性能。


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    Title :

    Modified epoxidized natural rubber material as well as preparation method and application thereof


    Additional title:

    一种改性环氧化天然橡胶材料及其制备方法和应用


    Contributors:
    NIU ZHONGFU (author) / LI HAI (author) / PENG HUALONG (author) / YAO XIANG (author)

    Publication date :

    2024-08-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



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