CN108115805A - 一种高强度竹木纤维装饰板 - Google Patents
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Abstract
本发明公开了一种高强度竹木纤维装饰板的生产方法:(1)制备发酵液:将枯草芽孢杆菌菌株xp用LB液体培养基进行悬浮培养;将上述培养获得的菌,在无菌条件下用接种环挑取单菌落接种于含有0.1g/L苹果酸的LB液体培养基于30-38℃摇床培养至OD600值为2.0,获得发酵液;(2)准备原料:按照如下重量份数配备原料,所有原料均干燥至含水率8%:竹纤维50‑55份,松木枝桠材刨花5‑8份,棕榈纤维10份,原料混合均匀;将混合均匀的原料植物纤维,均匀喷洒发酵液并翻动,置于39℃下发酵8‑10h;喷洒量为,发酵液为植物纤维重量的0.002倍;发酵后60℃烘干至含水量8%,粉碎成粉末待用;(3)成型。
Description
技术领域
本发明涉及一种高强度竹木纤维装饰板,属于装饰板材领域。
背景技术
天然植物纤维 (Natural Vegetable Fibers,NVF) 是自然界最丰富的天然高分子材料,如木材、竹材、稻草、麦桔、谷糠、花生壳、甘蔗渣、椰子壳、亚麻、苎麻等,自然界中每年生长的纤维素 (以天然植物纤维的形式存在) 总量多达千亿吨,远远超过了地球上现有的石油总储量。此外,还有大量的农业加工废弃物等天然纤维资源,一些热带地区尤为丰富,可再生资源的研究已列入国际上 24 个前沿领域之一,各国都投入大量资金对其进行研究与开发。根据美国能源部 (DOE ) “植物及粮食基可再生资源技术路线图”的规划,到2020 年,来自植物可再生资源的基本化学结构材料将增加到 20%,到 2050 年要达到50%。如何充分利用天然植物纤维的潜力,发挥其独特的功能和特性,开发新的应用领域,是引人注目的热点。天然植物纤维具有众多优点,如价格低廉、密度小、具有较高的弹性模量等,最为重要的是它的生物降解性和可再生性,这是其它任何增强材料无法比拟的,具有广阔的发展前景。因此,天然纤维复合材料 (natural fiber reinforcedplastics 简称 NFRP) 是国内外近
年蓬勃兴起的一类新型绿色复合材料。
竹纤维,是从自然生长的竹子中提取出的纤维素纤维,继棉、麻、毛、丝后的第五大天然纤维。竹原纤维具有良好的透气性、瞬间吸水性、较强的耐磨性和良好的染色性等特性,具有天然抗菌、抑菌、除螨、防臭和抗紫外线功能。
现有技术公开过一种轻量高强竹木纤维复合装饰板材的生产方法,其使用多种复合酶处理,然而酶的价格高,限制了应用。
现有技术公开过一株枯草芽孢杆菌菌株xp,其分类命名为Bacillus subtilis,该菌株在中国典型培养物保藏中心的保藏号为:CCTCC No:M 2011452,保藏日期:2011年12月9日,保藏单位地址:湖北省武汉市武昌区珞珈山路16号(武汉大学)。利用上述枯草芽孢杆菌菌株xp制成的菌酶联合制剂,其由下述步骤制得: 1)斜面培养:将枯草芽孢杆菌菌株xp用LB液体培养基进行悬浮,然后用接种环挑取菌液于20-40℃斜面培养2-14h;2)种子培养:将步骤1)培养获得的菌,在无菌条件下用接种环挑取单菌落接种于LB液体培养基于30-38℃摇床培养至OD600值为1.0-5.0,获得种子液;3)将种子液与淀粉酶、纤维素酶和糖化酶按体积比1:1:1:1混匀即得。
本发明旨在提供一种新型高强度竹木纤维装饰板,其使用微生物对竹纤维进行发酵改性,取代了酶处理,效果却更好,尤其是具有很高的强度,具有广阔的应用前景。
发明内容
本发明的目的是提供一种新型竹木纤维装饰板,其使用微生物对竹纤维进行发酵改性,取代了酶处理,效果却更好。
本发明是这样实现的:
一种高强度竹木纤维装饰板的生产方法,其步骤如下:
(1)制备发酵液:
将枯草芽孢杆菌菌株xp用LB液体培养基进行悬浮,然后用接种环挑取菌液于20-40℃斜面培养2-14h;将上述培养获得的菌,在无菌条件下用接种环挑取单菌落接种于含有0.1g/L苹果酸的LB液体培养基于30-38℃摇床培养至OD600值为2.0,获得发酵液;
(2)准备原料:
按照如下重量份数配备原料,所有原料均干燥至含水率8%:竹纤维50-55份,松木枝桠材刨花5-8份,棕榈纤维10份,原料混合均匀;
将混合均匀的原料植物纤维,均匀喷洒发酵液并翻动,置于39℃下发酵8-10h;
喷洒量为,发酵液为植物纤维重量的0.002倍;
发酵后60℃烘干至含水量8%,粉碎成粉末待用;
(3)成型:
按重量份,将2份预处理后的纤维粉末过80目筛,和2份PVC,0.5份云母粉,0.02份碳纳米管粉,0.02份红晶石粉混合混炼; 输送至高速搅拌机,搅拌 30min 至混合均匀; 将混合物料注入锥形双螺杆挤出机,使其塑化及微发泡; 温度: 130℃,时间: 60min;然后输送至双滚延压机开炼延压成板材,时间:5min;然后 输送至冷压机冷却定型,时间:10min;最后输送至纵横切割机进行切割,制成成品。
本发明的优点:
本发明提供一种新型高强度竹木纤维装饰板,其使用微生物对竹纤维进行发酵改性,取代了酶处理,效果却更好,尤其是具有很高的强度,具有广阔的应用前景。
具体实施方式
下面详细描述本发明的实施例,所述实施例仅用于解释本发明,而不能理解为对本发明的限制。
实施例1
一种高强度竹木纤维装饰板的生产方法,其步骤如下:
(1)制备发酵液:
将枯草芽孢杆菌菌株xp用LB液体培养基进行悬浮,然后用接种环挑取菌液于20℃斜面培养2h;将上述培养获得的菌,在无菌条件下用接种环挑取单菌落接种于含有0.1g/L苹果酸的LB液体培养基于30℃摇床培养至OD600值为2.0,获得发酵液;
(2)准备原料:
按照如下重量份数配备原料,所有原料均干燥至含水率8%:竹纤维50份,松木枝桠材刨花5份,棕榈纤维10份,原料混合均匀;
将混合均匀的原料植物纤维,均匀喷洒发酵液并翻动,置于39℃下发酵8h;
喷洒量为,发酵液为植物纤维重量的0.002倍;
发酵后60℃烘干至含水量8%,粉碎成粉末待用;
(3)成型:
按重量份,将2份预处理后的纤维粉末过80目筛,和2份PVC,0.5份云母粉,0.02份碳纳米管粉,0.02份红晶石粉混合混炼; 输送至高速搅拌机,搅拌 30min 至混合均匀; 将混合物料注入锥形双螺杆挤出机,使其塑化及微发泡; 温度: 130℃,时间: 60min;然后输送至双滚延压机开炼延压成板材,时间:5min;然后 输送至冷压机冷却定型,时间:10min;最后输送至纵横切割机进行切割,制成成品。
结果:板材的密度为0.8g/cm3,邵氏硬度为90,断裂伸长率为19%,弹性模量大于3800,吸水率为0.3,可见完全符合标准,性能优异。
实施例2:
一种高强度竹木纤维装饰板的生产方法,其步骤如下:
(1)制备发酵液:
将枯草芽孢杆菌菌株xp用LB液体培养基进行悬浮,然后用接种环挑取菌液于40℃斜面培养14h;将上述培养获得的菌,在无菌条件下用接种环挑取单菌落接种于含有0.1g/L苹果酸的LB液体培养基于38℃摇床培养至OD600值为2.0,获得发酵液;
(2)准备原料:
按照如下重量份数配备原料,所有原料均干燥至含水率8%:竹纤维55份,松木枝桠材刨花8份,棕榈纤维10份,原料混合均匀;
将混合均匀的原料植物纤维,均匀喷洒发酵液并翻动,置于39℃下发酵10h;
喷洒量为,发酵液为植物纤维重量的0.002倍;
发酵后60℃烘干至含水量8%,粉碎成粉末待用;
(3)成型:
按重量份,将2份预处理后的纤维粉末过80目筛,和2份PVC,0.5份云母粉,0.02份碳纳米管粉,0.02份红晶石粉混合混炼; 输送至高速搅拌机,搅拌 30min 至混合均匀; 将混合物料注入锥形双螺杆挤出机,使其塑化及微发泡; 温度: 130℃,时间: 60min;然后输送至双滚延压机开炼延压成板材,时间:5min;然后 输送至冷压机冷却定型,时间:10min;最后输送至纵横切割机进行切割,制成成品。
结果:板材的密度为0.9g/cm3,邵氏硬度为92,断裂伸长率为20%,弹性模量大于3800,吸水率为0.3,可见完全符合标准,性能优异。
实施例3
一种高强度竹木纤维装饰板的生产方法,其步骤如下:
(1)制备发酵液:
将枯草芽孢杆菌菌株xp用LB液体培养基进行悬浮,然后用接种环挑取菌液于36℃斜面培养7h;将上述培养获得的菌,在无菌条件下用接种环挑取单菌落接种于含有0.1g/L苹果酸的LB液体培养基于38℃摇床培养至OD600值为2.0,获得发酵液;
(2)准备原料:
按照如下重量份数配备原料,所有原料均干燥至含水率8%:竹纤维52份,松木枝桠材刨花8份,棕榈纤维10份,原料混合均匀;
将混合均匀的原料植物纤维,均匀喷洒发酵液并翻动,置于39℃下发酵9h;
喷洒量为,发酵液为植物纤维重量的0.002倍;
发酵后60℃烘干至含水量8%,粉碎成粉末待用;
(3)成型:
按重量份,将2份预处理后的纤维粉末过80目筛,和2份PVC,0.5份云母粉,0.02份碳纳米管粉,0.02份红晶石粉混合混炼; 输送至高速搅拌机,搅拌 30min 至混合均匀; 将混合物料注入锥形双螺杆挤出机,使其塑化及微发泡; 温度: 130℃,时间: 60min;然后输送至双滚延压机开炼延压成板材,时间:5min;然后 输送至冷压机冷却定型,时间:10min;最后输送至纵横切割机进行切割,制成成品。
结果:板材的密度为1.0g/cm3,邵氏硬度为98,断裂伸长率为21%,弹性模量大于3800,吸水率为0.3,可见完全符合标准,性能优异。
实施例4
一种高强度竹木纤维装饰板的生产方法,其步骤如下:
(1)制备发酵液:
将枯草芽孢杆菌菌株xp用LB液体培养基进行悬浮,然后用接种环挑取菌液于36℃斜面培养14h;将上述培养获得的菌,在无菌条件下用接种环挑取单菌落接种于含有0.1g/L苹果酸的LB液体培养基于38℃摇床培养至OD600值为2.0,获得发酵液;
(2)准备原料:
按照如下重量份数配备原料,所有原料均干燥至含水率8%:竹纤维53份,松木枝桠材刨花7份,棕榈纤维10份,原料混合均匀;
将混合均匀的原料植物纤维,均匀喷洒发酵液并翻动,置于39℃下发酵10h;
喷洒量为,发酵液为植物纤维重量的0.002倍;
发酵后60℃烘干至含水量8%,粉碎成粉末待用;
(3)成型:
按重量份,将2份预处理后的纤维粉末过80目筛,和2份PVC,0.5份云母粉,0.02份碳纳米管粉,0.02份红晶石粉混合混炼; 输送至高速搅拌机,搅拌 30min 至混合均匀; 将混合物料注入锥形双螺杆挤出机,使其塑化及微发泡; 温度: 130℃,时间: 60min;然后输送至双滚延压机开炼延压成板材,时间:5min;然后 输送至冷压机冷却定型,时间:10min;最后输送至纵横切割机进行切割,制成成品。
结果:板材的密度为0.9g/cm3,邵氏硬度为93,断裂伸长率为20%,弹性模量大于3800,吸水率为0.3,可见完全符合标准,性能优异。
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例,本领域的普通技术人员可以理解:在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由权利要求及其等同物限定。
Claims (3)
1.一种高强度竹木纤维装饰板的生产方法,其步骤如下:
(1)制备发酵液:
将枯草芽孢杆菌菌株xp用LB液体培养基进行悬浮,然后用接种环挑取菌液于20-40℃斜面培养2-14h;将上述培养获得的菌,在无菌条件下用接种环挑取单菌落接种于含有0.1g/L苹果酸的LB液体培养基于30-38℃摇床培养至OD600值为2.0,获得发酵液;
(2)准备原料:
按照如下重量份数配备原料,所有原料均干燥至含水率8%:竹纤维50-55份,松木枝桠材刨花5-8份,棕榈纤维10份,原料混合均匀;
将混合均匀的原料植物纤维,均匀喷洒发酵液并翻动,置于39℃下发酵8-10h;
喷洒量为,发酵液为植物纤维重量的0.002倍;
发酵后60℃烘干至含水量8%,粉碎成粉末待用;
(3)成型。
2.权利要求1所述的方法,其特征在于∶
所述成型步骤为:按重量份,将2份预处理后的纤维粉末过80目筛,和2份PVC,0.5份云母粉,0.02份碳纳米管粉,0.02份红晶石粉混合混炼; 输送至高速搅拌机,搅拌 30min 至混合均匀; 将混合物料注入锥形双螺杆挤出机,使其塑化及微发泡; 温度: 130℃,时间:60min;然后输送至双滚延压机开炼延压成板材,时间:5min;然后 输送至冷压机冷却定型,时间:10min;最后输送至纵横切割机进行切割,制成成品。
3.权利要求1-2所述方法生产得到的高强度竹木纤维装饰板。
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CN102650108A (zh) * | 2012-04-19 | 2012-08-29 | 华中科技大学 | 一种利用木质纤维素原料生产纤维板的方法 |
CN105500492A (zh) * | 2015-12-02 | 2016-04-20 | 长兴吉尼雅家具有限公司 | 一种用于衣柜净化甲醛的改性复合松木板 |
CN106240221A (zh) * | 2016-08-02 | 2016-12-21 | 浙江长兴森大竹木制品有限公司 | 一种轻量高强竹木纤维复合装饰板材 |
CN106723311A (zh) * | 2016-12-05 | 2017-05-31 | 河南中烟工业有限责任公司 | 枯草芽孢杆菌在降解烟草制品中纤维素方面的应用 |
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CN102650108A (zh) * | 2012-04-19 | 2012-08-29 | 华中科技大学 | 一种利用木质纤维素原料生产纤维板的方法 |
CN105500492A (zh) * | 2015-12-02 | 2016-04-20 | 长兴吉尼雅家具有限公司 | 一种用于衣柜净化甲醛的改性复合松木板 |
CN106240221A (zh) * | 2016-08-02 | 2016-12-21 | 浙江长兴森大竹木制品有限公司 | 一种轻量高强竹木纤维复合装饰板材 |
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