Fiber-containing composites are described that include woven or non-woven fibers, and a binder that holds the fibers together. The binder may include the reaction product of a starch and a polycarboxylic acid. The starch has a weight average molecular weight that ranges from 1×106 Daltons to 1×107 Daltons. The fiber-containing composite has an unaged tensile strength of greater than 4.0 and an aged tensile strength greater than 3.0. Also described are methods of making the fiber-containing composites. The methods may include applying a binder composition to fibers to form coated fibers, measuring a moisture content of the coated fibers, and curing the coated fibers in a curing oven to form the fiber-containing composite. The binder composition may include a starch having a weight average molecular weight that ranges from 1×106 Daltons to 1×107 Daltons, and a polycarboxylic acid.
所述含纤维复合材料包括编织或非编织纤维,以及将纤维固定在一起的粘合剂。粘合剂可包括淀粉和聚
羧酸的反应产物。淀粉的重量平均分子量在 1×106 道尔顿到 1×107 道尔顿之间。含纤维复合材料的未老化拉伸强度大于 4.0,老化拉伸强度大于 3.0。此外,还描述了制造含纤维复合材料的方法。这些方法可包括将粘合剂组合物涂在纤维上以形成涂层纤维,测量涂层纤维的含
水量,并在固化炉中固化涂层纤维以形成含纤维复合材料。粘合剂组合物可包括重量平均分子量在 1×106 道尔顿至 1×107 道尔顿之间的淀粉和聚
羧酸。