High-strength, environmentally friendly contoured articles
A product, corrugated technology, applied in the field of corrugated products with soybean-based resin system, can solve the problems of not being biodegradable, unable to effectively shape corrugated products, slow and so on, and achieve the effect of not harming the environment
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[0077] Method of making molded articles
[0078] The resin solution is used to wet out and coat one or more fiber mats or fabric sheets. Mats include, for example, kenaf, burlap, sorghum, flax, ramie, sisal, kapok, banana, pineapple, hemp fibers or combinations thereof. In one embodiment, the preferred fabric sheet is linen. Preferred mats are jute or kenaf.
[0079] The resin solution is applied to the fiber mats or sheets in an amount of about 50-100 ml of resin solution per 15 g of fibers so that the mats or sheets can be completely wetted and coated on their surfaces. The treated mat or sheet is pre-plasticized in a drying oven at about 35-70°C to form a prepreg or pre-molded product. In one embodiment, the prepreg or preform is dried under a pressure with a maximum pressure of 0.9 atm. Low air pressure facilitates rapid removal of water from wetted wafers. If desired, the prepreg is wetted a second time and dried according to one or more of the conditions described...
Embodiment
[0100] Example: Preparation of Snowboards Using Soy Complex Cores
[0101] Skis are usually constructed with a core of thin planks sandwiched between layers of fiberglass. The bottom or "base" of a ski is usually made of various construction plastics such as polyethylene or polypropylene, and is surrounded by a thin steel strip, called the "rim". The top layer, where printed graphics usually sit, is usually made of acrylic. The core of the board varies in stiffness from the front to the top to the tail. The choice of boards of different densities and their relative positions along the length of the ski determines the flexibility at specific points along the length of the ski. Choosing a light wood plank will result in high elasticity. Choosing a hardwood will result in greater strength and stiffness. One application that is desired is greater stiffness in the deck of a snowboard with greater flexibility at the tip and tail.
[0102] refer to Figure 7 Discussing an emb...
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