The invention relates to the technical field of sponge cushions, in particular to a dual-density sponge cushion and a preparation method thereof. The invention discloses a dual-density sponge cushion which comprises a first sponge layer and a second sponge layer, the second sponge layer is arranged below the first sponge layer, the density of the first sponge layer is 32-35 kg/m < 2 >, and the density of the second sponge layer is 60-70 kg/m < 2 >; the first sponge layer comprises the following raw materials in parts by mass: 60-70 parts of polyether polyol, 55-65 parts of isocyanate, 1-3 parts of a catalyst, 1-4 parts of a foaming agent, 2-5 parts of a cross-linking agent, 1-2 parts of a stabilizer, 0.5-3 parts of silicon carbide, 3-8 parts of aramid fiber, 15-20 parts of polyethylene and 0.5-3 parts of a coupling agent; the invention discloses a dual-density sponge cushion and a preparation method thereof, the dual-density sponge cushion is prepared by adopting two sponge materials with different densities, the supporting degree of the sponge cushion is ensured, and meanwhile, the comfort degree of a passenger during use is improved.
本申请涉及海绵坐垫的技术领域,尤其是涉及一种双密度海绵坐垫及其制备方法;本申请公开了一种双密度海绵坐垫,包括第一海绵层以及第二海绵层,所述第二海绵层设置在所述第一海绵层的下方,所述第一海绵层的密度为32‑35kg/m2,所述第二海绵层的密度为60‑70kg/m2;所述第一海绵层包括以下质量份数的原料:聚醚多元醇60‑70份、异氰酸酯55‑65份、催化剂1‑3份、发泡剂1‑4份、交联剂2‑5份、稳定剂1‑2份、碳化硅0.5‑3份、芳纶纤维3‑8份、聚乙烯15‑20份以及偶联剂0.5‑3份;本申请公开了一种双密度海绵坐垫及其制备方法,通过采用两种不同密度的海绵材料进行制备双密度海绵坐垫,在保证海绵坐垫支撑度的同时,提升乘客使用时的舒适度。
Dual-density sponge cushion and preparation method thereof
一种双密度海绵坐垫及其制备方法
2024-09-06
Patent
Electronic Resource
Chinese
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / 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 / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |