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Disc brake pad friction material and production process thereof
The invention discloses a disc brake pad friction material and a production process thereof. The friction material is prepared from the following raw materials in parts by weight: 8-12 parts of modified phenolic resin, 2-5 parts of modified aramid pulp, 30-40 parts of aluminum silicate ceramic fiber, 3-5 parts of expanded vermiculite, 2-4 parts of talcum powder, 1-3 parts of zircon powder, 1-3 parts of emery powder, 2-4 parts of brucite, 1-3 parts of zeolite, 5-7 parts of graphite, 13-15 parts of barium sulfate and 12-18 parts of chopped copper fiber. The modified phenolic resin is a core-shell structure, so that the toughness of the prepared friction material is improved, meanwhile, the cage-shaped Si-O-Si structure in the molecular structure further improves the heat resistance of the modified phenolic resin, and the situation that the friction coefficient is unstable due to the fact that the temperature of a brake pad is too high in the braking process is avoided; porous nanocrystals on the modified aramid pulp are matched with the expanded vermiculite, the zircon powder and the corundum powder, so that the braking noise can be well reduced, and the friction coefficient is increased.
本发明公开了一种盘式刹车片摩擦材料及其生产工艺，该摩擦材料由如下重量份原料制备：改性酚醛树脂8‑12份、改性芳纶浆粕2‑5份、硅酸铝陶瓷纤维30‑40份、膨胀蛭石3‑5份、滑石粉2‑4份、锆石粉1‑3份、刚玉粉1‑3份、水镁石2‑4份、沸石1‑3份、石墨5‑7份、硫酸钡13‑15份和短切铜纤维12‑18份；改性酚醛树脂为核壳结使得制备的摩擦材料的韧性提升，同时分子结构中的笼型Si‑O‑Si结构使得改性酚醛树脂的耐热性进一步提升，避免的了在刹车过程中刹车片温度过高导致摩擦系数不稳定，改性芳纶浆粕上的多孔纳米晶粒与膨胀蛭石、锆石粉和刚玉粉配合能够很好的降低制动噪声，并且提升摩擦系数。
Disc brake pad friction material and production process thereof
The invention discloses a disc brake pad friction material and a production process thereof. The friction material is prepared from the following raw materials in parts by weight: 8-12 parts of modified phenolic resin, 2-5 parts of modified aramid pulp, 30-40 parts of aluminum silicate ceramic fiber, 3-5 parts of expanded vermiculite, 2-4 parts of talcum powder, 1-3 parts of zircon powder, 1-3 parts of emery powder, 2-4 parts of brucite, 1-3 parts of zeolite, 5-7 parts of graphite, 13-15 parts of barium sulfate and 12-18 parts of chopped copper fiber. The modified phenolic resin is a core-shell structure, so that the toughness of the prepared friction material is improved, meanwhile, the cage-shaped Si-O-Si structure in the molecular structure further improves the heat resistance of the modified phenolic resin, and the situation that the friction coefficient is unstable due to the fact that the temperature of a brake pad is too high in the braking process is avoided; porous nanocrystals on the modified aramid pulp are matched with the expanded vermiculite, the zircon powder and the corundum powder, so that the braking noise can be well reduced, and the friction coefficient is increased.
本发明公开了一种盘式刹车片摩擦材料及其生产工艺，该摩擦材料由如下重量份原料制备：改性酚醛树脂8‑12份、改性芳纶浆粕2‑5份、硅酸铝陶瓷纤维30‑40份、膨胀蛭石3‑5份、滑石粉2‑4份、锆石粉1‑3份、刚玉粉1‑3份、水镁石2‑4份、沸石1‑3份、石墨5‑7份、硫酸钡13‑15份和短切铜纤维12‑18份；改性酚醛树脂为核壳结使得制备的摩擦材料的韧性提升，同时分子结构中的笼型Si‑O‑Si结构使得改性酚醛树脂的耐热性进一步提升，避免的了在刹车过程中刹车片温度过高导致摩擦系数不稳定，改性芳纶浆粕上的多孔纳米晶粒与膨胀蛭石、锆石粉和刚玉粉配合能够很好的降低制动噪声，并且提升摩擦系数。
Disc brake pad friction material and production process thereof
一种盘式刹车片摩擦材料及其生产工艺
LIN QIANG (author) / CHEN YU (author) / CHEN SUIWU (author) / LI BANGFEI (author)
2023-06-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
F16D
COUPLINGS FOR TRANSMITTING ROTATION
,
Nicht schaltbare Kupplungen
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