Manufacturing Technology And Properties Of Scrimber Of Bamboo Fibrillated-veneer Lumber

Bamboo scrimber material is a kind of new production, the research about it started in the 1990s. Recently years, bamboo scrimber material is getting more and more attention with the increment of its category, the improvement of the bamboo utilization ratio and the continuous improvement of the physical and chemical properties. However, most bamboo scrimber material uses big-diameter Phyllostachys edulis (Carr.) H. de Lehaie as the raw material. Therefore, most small-diameter bamboo resources can not be use effectively. As a new type of bamboo scrimber structural material, scrimber of bamboo fibrillated-veneer lumber can make the small-diameter bamboo to be used on a large scale.The manufacturing method of scrimber of bamboo fibrillated-veneer lumber breaks through the tradational methodology of bamboo-based panels. It doesn't require to remove the outer part and inner part of bamboo, and it increase the utilization ratio of bamboo to be 90%～95%. At the same time, it can use the small-diameter bamboo much more effective than before. For the reason that this method can keep the high strength feature of bamboo fiber, the panles can have much better physical and mechanical properties. Therefore, scrimber of bamboo fibrillated-veneer lumber are not only can be use as decorating materials, container floors, but also can be used as high weatherability materials.The main raw materials of this research including Neosinocalamus affinis (Rendle) Keng f. Phyllostachys arcana McClure. Phyllostachys iridescens C. Y. Yao et C. Y. Chen. Phyllostachys edulis (Carr.) H. de Lehaie and so.This research tested the effects to physical and mechanical properties and waterproofing ability using different impregnating amount of adhesive and the different defibering process to bamboo units. By analyzing the results of thickness expansion rate of water absorbing (TS), tensile strength, compression strength, modulus of rupture (MOR) and modulus of elasticity (MOE), and comparing the physical and mechanical properties with the properties of bamboo laminated lumber, bamboo scrimber, A laminated bamboo strip veneer lumber.Results show that scrimber of bamboo fibrillated-veneer lumber is a new sustainable material with excellent performance. It makes positive impact to the development of bamboo-based panels and the increment on the utilization ratio of bamboo.The main conclusion were summarized as follows,1. The results showed that with the increase of resin impregnation rate, tensile strength and MOR decreased, and tensile strength reduced by 18.68%. At the same time, shear strength shown a reverse trend, MOE and compression strength do not change significantly. Water-resistance test includes boiling water resistance and water resistance; both of them increase with the increase of impregnating amount of adhesive. 2. with the increase of the defibering times, the MOR, water-resistance and compression strength of scrimber of bamboo fibrillated-veneer lumber increase, while MOE exhibited a trend of initial increase and then decrease. The tensile strength gradually decreased with increase times of defibering process.3. Trial test of scrimber of bamboo fibrillated-veneer lumber used Neosinocalamus affinis (Rendle) Keng f. Phyllostachys arcana McClure. Phyllostachys iridescens C. Y. Yao et C. Y. Chen. Phyllostachys edulis (Carr.) H. de Lehaie and so. The test result showed that using different raw materials can meet different requirements.4. Developed the bamboo concrete board which is with bamboo fibrillated-veneer lumber as its basic unit, the result of trial test showed that bamboo concrete board, which has good quality and high added value, has a promising future in the market.