Nova Patents
CN102248564A

Method for enhancing surface antibacterial and wear-resisting property of Chinese fir by using wood micron/nano fibril

Abstract

The invention discloses a method for enhancing the surface antibacterial and wear-resisting property and other properties of Chinese fir by using wood micron/nano fibril. The method comprises the following process steps: 1, preparing the wood micron/nano fibril, 2, preparing a mixed solution, 3, preparing the Chinese fir, 4, coating resins on the Chinese fir surface, 5, ageing, 6, thermally pressing, and 7, post-processing; the thermally pressed Chinese fir needs to be naturally cooled for 1-2 hours, then to be stacked for 2-3 days to release the inner stress and balance the moisture content. The method has the advantages that the distinct surface texture on the Chinese fir can be kept since the wood micron/nano fibril has high transmittance; and the Chinese fir surface cellulose content is improved to perfect the size stability, the surface hardness and the wear-resisting property since the main chemical component of the wood micron/nano fibril is cellulose. Compared with the resin processed Chinese fir without adding the wood micron/nano fibril, the size stability and the durability of surface antibacterial property of the Chinese fir are improved by 30-50%, and the surface hardness and the wear-resisting property of the Chinese fir are improved by 50-80%.

Term

No projected expiry on record.

  1. Priority and filed
  2. Published
  3. Today

1 claim: 1 independent, 0 dependent

  1. 1
    (1). Micro/accepting the microfilament reinforcing throttle surface antibiotic and wear-resisting performance and wood method, wherein the method includes the following process steps:First, wood micro/accepting the microfilament preparing, or is removed the wood and hemicellulose wood chemical pulp of the raw material, wherein two steps preparation woods micro/to holding microfilament, a first step through the nanometer high-pressure homogenizer, the pressure is 1000 -3000bar, preparation of disperse the water the wood micro/accepting the microfilament, namely micro/accepting the microfilament dispersion, wherein a concentration is 0. 5-1. 0%th, Wherein the IOOg water comprising 0. 5-1. The Og wood micro/accepting microfilament;Second end of the ultrasonic wave battery crushing device of disperse the water the wood micro/accepting the microfilament is further refine, the ultrasonic wave battery crushing meter's power is 450-600W, the vibration amplitude 80-100, the crushing time is 0. 5-1. Hours 5,Second plates, preparation, plates for preparation method of two third mixing, the first end of IOOg micro/accepting position of the microfilament dispersion liquid to 0. 005-0. the 015g solid antibiotics, stirring fully holes;Second further comprises a antibiotics micro/accepting the microfilament dispersion and resin melamine intensive mixing agitating is flat;the weight of which are mixed is 1:1;Third, preparation arranging mechanism, a throttle the saw plate, thickness of 15-30mm, a dry through the angle, wherein enables moisture from achieve 6 to 10%, a loading on the surface is a plane;processingFourth, throttle surface of the resin, wherein a antibiotics micro/accepting the microfilament dispersion and melamine plates resin Coating Device is preparing the travel throttle surface, the amount for of each square instrument throttle surface of 150 to 200 g/sq.m comprises antibiotics micro/accepting the microfilament dispersion and resin melamine plates;Fifth, aging, surface of the Guo comprising antibiotics micro/accepting microfilament dispersion and throttle aging 2-6 hours of the resin melamine plates;Sixth, surface of the Guo rear aging comprising antibiotics micro/accepting the microfilament dispersion and resin melamine plates throttle under the hot pressing device;the angle is 0. 5-1. 5MPa, which temperature 170 to 190°C, which is 0. 5 to 1. 0 minutes;Seventh, primarily and processing;the arranging mechanism of which needs the second cooling 1 to 2 hours, a stacking 2 to 3 days, a wherein an to release and water content balance. 1.用木材微/纳纤丝增强杉木表面抗菌和耐磨性能的方法，其特征是该方法包括如下工艺步骤：一、木材微/纳纤丝制备，选用已经去除木素和半纤维素的木材化学浆为原料，采用两步法制备木材微/纳纤丝，第一步通过高压纳米均质器，压力为1000 -3000bar，制备出分散在水中的木材微/纳纤丝，即微/纳纤丝分散液，其重量浓度为0. 5-1. 0%，即IOOg水中含有0. 5-1. Og的木材微 /纳纤丝；第二步采用超声波细胞破碎仪将分散在水中的木材微/纳纤丝进一步细化，超声波细胞破碎仪的功率为450-600W，振幅80-100，破碎时间为0. 5-1. 5小时；二、混合液制备，混合液制备采用两步混合的方法，第一步是在IOOg微/纳纤丝分散液中加入0. 005-0. 015g固体抗菌剂，充分搅拌均勻；第二步将含有抗菌剂的微/纳纤丝分散液与水溶性的三聚氰胺树脂充分混合搅拌均勻，两者混合的重量比例为1:1 ；三、杉木准备，将杉木锯切成板材，厚度为15-30mm，再通过热压干燥，使其含水率达到6〜10%，然后进行表面刨光处理；四、杉木表面涂树脂，将含有抗菌剂的微/纳纤丝分散液与水溶性的三聚氰胺树脂混合液涂布在准备好的杉木表面，用量为每平方米杉木表面涂150〜200克含有抗菌剂的微/纳纤丝分散液与水溶性的三聚氰胺树脂混合液；五、陈化，将表面涂过含有抗菌剂的微/纳纤丝分散液与水溶性的三聚氰胺树脂混合液的杉木陈化2-6小时；六、热压，将陈化后的表面涂过含有抗菌剂的微/纳纤丝分散液与水溶性的三聚氰胺树脂混合液的杉木送入热压机热压，热压压力0. 5-1. 5MPa，热压温度170〜190°C，热压时间0. 5〜1. 0分钟； 七、后期处理，热压后的杉木需要自然冷却1〜2小时，然后堆放2〜3天，使其内应力释放、含水率平衡。