共查询到19条相似文献,搜索用时 750 毫秒
1.
改革开放以来 ,随着国民经济飞速发展 ,我国包装工业取得了较大发展 ,国家环保政策不断完善和全民社会环保意识增强 ,消灭“白色污染”势在必行 ,为纸浆餐具制品提供了广阔前景 ,特别在 2 0 0 0年 7月1日之后全国禁止生产泡沫餐具 ,这样纸浆餐具如雨后春笋般发展壮大 ,也为我国食品包装行来增加了一支队伍。1 纸浆餐具制品现状纸浆餐具制品是从纸浆模塑制品发展演变过来的。纸浆模塑工业在一些发达国家已有 80多年历史 ,目前世界上法国、美国、加拿大、英国、新加坡等国家已有一定规模。我国纸浆模塑工业最近十几年才发展起来 ,1984年湖南… 相似文献
2.
3.
4.
全自动纸浆模塑餐具生产线气动系统设计 总被引:7,自引:0,他引:7
介绍了全自动纸浆模塑生产线的生产工艺过程,采用信号一动作状态线图法对气动系统进行设计,并描述了纸浆模塑生产线气动系统的工作过程及系统组成。 相似文献
5.
一、国内外情况介绍近年来,国际上有一种新型包装材料——模塑纸浆产品得到了推广应用。模塑纸浆产品是由纸浆按照被包装物品的部分外形模压而成。这种包装材料不仅在资本主义国家如英、法、日本等国应用广泛,在某些第三世界国家如印度也正在推广应用。 相似文献
6.
纸浆模塑板在景观环境中的应用与开发研究 总被引:4,自引:0,他引:4
景观材料是园林景观设计的基础,合理运用景观材料是建设优质景观工程的前提。因此以可持续景观为指导思想,研制适用景观环境的新一种低碳节能材料纸浆模塑板,探讨纸浆模塑板的制作工艺技术,并重点研究分析纸浆模塑板在景观环境中的应用方式与应用效果。得出的结论是:纸浆模塑板在室外地面铺装与装饰小品中能大量应用与推广。它具有安全性、价格低、可普及性、美观性以及生态环保等特点,符合园林景观方面材料的要求。 相似文献
7.
8.
9.
10.
11.
12.
13.
14.
竹Lyocell纤维研制工艺探讨 总被引:2,自引:0,他引:2
该文叙述了竹Lyocell纤维研制过程中碰到的几个技术问题,包括原料纤维素浆的选择、溶剂氧化甲基吗啉的合成、纤维素浆的溶解和纺丝工艺、溶剂回用与纯化、制胶和纺丝设备等,探索了制造竹Lyocell纤维的技术可行性,为竹纤维产品的开发和生产提供科学依据. 相似文献
15.
S. Behnam Hosseini Sahab Hedjazi Loya Jamalirad 《Wood material science & engineering》2017,12(5):279-287
High-density polyethylene (HDPE), bagasse fibers treated by four pulping processes (AS-AQ (alkaline sulfite anthraquinone), SODA-AQ (soda anthraquinone), MEA (monoethanolamine) and chemical–mechanical pulping (CMP)), three levels of nano-SiO2 (0, 2, and 5?wt%), and maleic anhydride polyethylene as coupling agent were used to produce pulp–plastic composites (PPCs) by injection molding. The physical and mechanical properties of corresponding composites were evaluated according to ASTM standards. The results showed that compared to untreated bagasse/HDPE composite, the addition of bagasse pulp fibers increased significantly the mechanical properties such as tensile strength and modulus, flexural strength and modulus, and hardness. The chemical pulps-reinforced composites showed better mechanical strengths than that of CMP-reinforced composites, but in some properties, CMP pulp composites have comparable results to the chemical pulp-reinforced composites. Natural fibers (untreated and treated) increased water absorption and thickness swelling of composites compared to pure HDPE. The addition of nano-SiO2 particles showed both increasing and decreasing trends on physical and mechanical properties ofPPCs. 相似文献
16.
17.
基于当前国内制浆造纸行业废纸处理中对浆料的洗涤和浓缩现状,在现今洗涤和浓缩设备的基础上,自行开发和研制了具有国际先进水平的高速洗浆机。整机采用全封闭式结构,不锈钢外形壳体,防腐防锈,外形美观,可以代替盘式浓缩机和斜螺旋式浓缩机,简化了工艺路线,降低了投资成本。该设备采用了先进的制造技术,自动化程度高,单机可实现对浆料从低浓到高浓的转变,浓度提高快,灰分去除率高,洗浆效率高;能够高效地去除油墨粒子、填料及其它细小杂质,大大提高了浆料的白度。该机在脱墨浆处理系统中得到了广泛应用。 相似文献
18.
19.
Katsuhiro Tokugawa Dan Aoki Ryutaro Asai Yasuyuki Matsushita Masao Ishiguro Yasufumi Noda Kazuhiko Fukushima 《Journal of Wood Science》2017,63(3):281-287
In order to understand the kraft pulp decolouring mechanism on using a nonionic detergent, the pulp washing process and the resulting pulp handsheets were investigated by examining the brightness, kappa number, thioacidolysis product yield, and dewatering efficiency in the pressing sheet making process. The pulp decolouring could be attributed to a decrease in the lignin content and an improvement in the dewatering efficiency. Furthermore, the detergent distribution in the aqueous pulp suspension obtained during the pulp washing process was visualised using cryo-time-of-flight secondary ion mass spectrometry/scanning electron microscopy (cryo-TOF-SIMS/SEM). The detergent was clearly observed at the transverse surface of the pulp fibre cell wall and was also detected in the lumen of the fibres, suggesting the permeation of the detergent into the pulp fibre cell wall. Based on these results, the pulp decolouring mechanism can be proposed as follows: the detergent permeates into the pulp fibre cell wall and promotes the solution-exchange between the inside and the outside parts of the fibre cell wall, finally washing away the chromophoric substances such as lignin and its degradation products owing to the enhanced dewatering efficiency. 相似文献