本发明公开了一种易降解聚乳酸汽车脚垫,包括脚垫本体,脚垫本体包括聚乳酸纤维表层、分散有钠离子的第一聚乳酸纤维层、聚乳酸塑料膜层、分散有氯离子的第二聚乳酸纤维层以及聚乳酸树脂底层;第一聚乳酸纤维层由钠盐、第二多孔填料载体、竹纤维、海藻酸钠以及加工助剂的固体粉末与吸水性纤维经混合疏解分散后,制得混合浆料,再采用湿法成型技术抄造,经压榨、烘干后得到;第二聚乳酸纤维层由氯盐、第二多孔填料载体、竹纤维、海藻酸钠以及加工助剂的固体粉末与吸水性纤维经混合疏解分散后,制得混合浆料,再采用湿法成型技术抄造,经压榨、烘干后得到。本发明脚垫采用特定的多层结构和材料配方工艺,使用寿命长,且废弃后降解速度较快,避免环境污染。

    The invention discloses an easily degradable polylactic acid automobile foot mat which comprises a foot mat body, and the foot mat body comprises a polylactic acid fiber surface layer, a first polylactic acid fiber layer with dispersed sodium ions, a polylactic acid plastic film layer, a second polylactic acid fiber layer with dispersed chloride ions and a polylactic acid resin bottom layer. The first polylactic acid fiber layer is obtained by mixing, defibering and dispersing solid powder of sodium salt, a second porous filler carrier, bamboo fiber, sodium alginate and a processing aid and water-absorbing fiber to prepare mixed slurry, then performing papermaking by adopting a wet forming technology, and performing squeezing and drying; the second polylactic acid fiber layer is obtained by mixing, defibering and dispersing solid powder of chlorine salt, a second porous filler carrier, bamboo fibers, sodium alginate and a processing aid with water-absorbing fibers to prepare mixed slurry, then performing papermaking by adopting a wet forming technology, and performing squeezing and drying. The foot pad adopts a specific multi-layer structure and a material formula process, is long in service life and high in degradation speed after being discarded, and avoids environmental pollution.


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    Titel :

    一种易降解聚乳酸汽车脚垫


    Erscheinungsdatum :

    27.06.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / 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