The invention belongs to the technical field of automobile part materials, and particularly relates to a high-fineness extrusion-grade modified polypropylene material and an automobile external waterseal. The modified polypropylene material is prepared from, by weight, 10 to 60 parts of PP resin I, 10 to 60 parts of PP resin II, 10 to 30 parts of a filler, 0.2 to 1 part of an antioxidant, 0.2 to2 parts of a light stabilizer, 0 to 3 parts of a plasticizer, 1 to 5 parts of a compatilizer, 1 to 5 parts of a color master batch, 0.5 to 3 parts of a cross-linking agent and 0.2 to 1 part of a polymerization inhibitor. PP resins with different melt mass flow rates are selected as a matrix, and through the special polymerization inhibitor, the compound plasticizer and the compatilizer, the processing performances of the material are improved, the plasticizing capacity of the material is improved, and the surface fineness of a product is improved; and the material has a wide processing temperature range, has low requirements for the plasticizing capacity of equipment, is high in universality, and meets the production requirements of high-quality automobile external water cutting.
本发明属于汽车零部件材料技术领域,具体涉及一种高细腻度挤出级改性聚丙烯材料及汽车外水切。本发明的改性聚丙烯材料,包括以下重量份数的组分:PP树脂I:10‑60份、PP树脂II:10‑60份、填料:10‑30份、抗氧剂:0.2‑1份、光稳定剂:0.2‑2份、塑化剂:0‑3份、相容剂:1‑5份、色母粒:1‑5份、交联剂:0.5‑3份、阻聚剂:0.2‑1份。本发明选用不同熔体质量流动速率的PP树脂为基体,通过特殊的阻聚剂、复配塑化剂、相容剂改善材料的加工性能,提高材料塑化能力,改善产品表面细腻度并且本发明的材料具有较宽的加工温度范围,对设备塑化能力要求较低,普适性强,满足高质量汽车外水切的生产需求。
High-fineness extrusion-grade modified polypropylene material and automobile external water seal
一种高细腻度挤出级改性聚丙烯材料及汽车外水切
2020-08-28
Patent
Electronic Resource
Chinese
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
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