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Sealing material and preparation method and application thereof
The invention belongs to the technical field of sealing materials, and particularly relates to a sealing material and a preparation method and application thereof. The sealing material provided by the invention is prepared from the following raw materials in parts by mass: 100 parts of methyl vinyl silicone rubber, 28-42 parts of modified nano silicon dioxide, 2-4 parts of a structure control agent, 0.9-1.1 parts of a vulcanizing agent, 0.8-1.2 parts of an anti-aging agent, 0-6 parts of a foaming agent and 0-0.3 part of a foaming aid, the preparation method of the modified nano silicon dioxide comprises the following steps: mixing nano silicon dioxide, a silane coupling agent and a solvent, and refluxing to obtain the modified nano silicon dioxide. The tensile strength, the elongation at break, the temperature resistance and the aging resistance of the sealing material are improved under the combined action of the raw materials.
本发明属于密封材料技术领域，具体涉及一种密封材料及其制备方法和应用。本发明提供的密封材料，包括以下质量份的原料：100份甲基乙烯基硅橡胶，28～42份改性纳米二氧化硅，2～4份结构控制剂，0.9～1.1份硫化剂，0.8～1.2份防老化剂，0～6份发泡剂，0～0.3份发泡助剂；所述改性纳米二氧化硅的制备方法包括以下步骤：将纳米二氧化硅、硅烷偶联剂和溶剂混合进行回流，得到所述改性纳米二氧化硅。本发明在各原料共同作用下提高了密封材料的拉伸强度、断裂伸长率和耐温性能以及抗老化性能。
Sealing material and preparation method and application thereof
The invention belongs to the technical field of sealing materials, and particularly relates to a sealing material and a preparation method and application thereof. The sealing material provided by the invention is prepared from the following raw materials in parts by mass: 100 parts of methyl vinyl silicone rubber, 28-42 parts of modified nano silicon dioxide, 2-4 parts of a structure control agent, 0.9-1.1 parts of a vulcanizing agent, 0.8-1.2 parts of an anti-aging agent, 0-6 parts of a foaming agent and 0-0.3 part of a foaming aid, the preparation method of the modified nano silicon dioxide comprises the following steps: mixing nano silicon dioxide, a silane coupling agent and a solvent, and refluxing to obtain the modified nano silicon dioxide. The tensile strength, the elongation at break, the temperature resistance and the aging resistance of the sealing material are improved under the combined action of the raw materials.
本发明属于密封材料技术领域，具体涉及一种密封材料及其制备方法和应用。本发明提供的密封材料，包括以下质量份的原料：100份甲基乙烯基硅橡胶，28～42份改性纳米二氧化硅，2～4份结构控制剂，0.9～1.1份硫化剂，0.8～1.2份防老化剂，0～6份发泡剂，0～0.3份发泡助剂；所述改性纳米二氧化硅的制备方法包括以下步骤：将纳米二氧化硅、硅烷偶联剂和溶剂混合进行回流，得到所述改性纳米二氧化硅。本发明在各原料共同作用下提高了密封材料的拉伸强度、断裂伸长率和耐温性能以及抗老化性能。
Sealing material and preparation method and application thereof
一种密封材料及其制备方法和应用
WANG XINMIAO (author) / QI JIANCHENG (author) / SHANG YIRAN (author) / ZHANG ZONGXING (author) / YI YING (author) / WU JINHUI (author)
2024-12-27
Patent
Electronic Resource
Chinese
IPC:
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
C08J
Verarbeitung
,
WORKING-UP
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
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