新型聚氧化乙烯助留体系的研究

将苯酚、甲醛与胺类化合物(如正丙胺、三乙胺、二乙基乙醇胺等)在一定条件下反应，可得到胺基改性的阳离子型酚醛树脂(CPFR)；该阳离子型的酚醛树脂与聚氧化乙烯(PEO)共用组成新型的助留体系，能显著提高浆料中细小组分的留着率，增强聚氧化乙烯的助留效果。     

改性酚醛树脂在造纸助留体系的应用研究

苯酚、甲醛(或酚醛树脂)与胺类化合物(如正丙胺、二乙基乙醇胺、三乙胺等)反应，得到胺基改性的带阳离子性的酚醛树脂(PFR)；该阳离子性的酚醛树脂与聚氧化乙烯(PEO)共用组成新型的助留体系，能显著提高纸料中细小组分的留着率，增强聚氧化乙烯的助留效果。     

聚氧化乙烯助留体系的研究进展

聚氧化乙烯（PEO）助留体系具有独特的作用机理，能显著提高机械浆抄造时系统的留着率和滤水性，聚氧化乙烯（PEO）助留体系出现以后有了很大发展，从单一的PEO体系到PEO／辅助剂双组分体系，改良的PEO／辅助助剂体系及最新的PEO／阳离子性高分子聚合物助留体系。     

一种适用于机械浆的新型有效助留剂

本文介绍了一种适用于机械浆的新型有效助留剂的制备，影响其助留性能的因素及其助留过程和机理，并与线形ＰＥＯ体系对比，阐述了这种新助剂的潜在优点及其在未来造纸工业中的巨大应用潜力。     

造纸助留助滤剂和微粒助留体系的应用和发展

介绍了造纸助留助滤剂和微粒助留体系在抄纸生产中的应用、发展过程,并对它们的作用机理做了简要的介绍     

用动态滤水仪探讨微粒助留体系絮聚机理

以CaCO3及经100目筛分得到的纤维为实验原料，设计了几种模型，用动态滤水仪(BRITTDDJ)探讨了CPAM／膨润土微粒助留体系的絮聚机理，并与CPAM单元助留体系的留着和抗剪切性能进行了比较。实验发现膨润土的主要作用是与吸附在纤维、细小组分上的CPAM之间产生强的连接键，从而产生絮聚；微粒助留体系比CPAM单元助留体系具有更好的留着和抗剪切性能。     

造纸温部CPAM／膨润土助留助滤体系的研究

本文简述了湿部助留助滤体系的发展概况，微业助留助滤体系的种类以及CPAM/膨润土体系助留助滤机理，研究了CPAM、膨润土、硫酸铝等用量变化对CPAM/膨润土体系助留助滤效果的影响，并对比了自制膨润土和进口膨润土的助留助滤性能，发现CPAM/膨润土体系不适合酸性造纸，但在近中性和中性造纸中有良好的助留助滤效果；CPAM的用量随浆料种类、填料种类等的变化而变化，CPAM只有达到足够的用量才能产生有效的助留助滤效果，膨润土在浆中添加的有效经济用量为0.2%-0.3%左右；2#自制膨润土的助留滤效果达到了进口膨润土的水平。     

PEO／木素型酚醛树脂双组分助留助滤体泵的研究

PEO/辅助助剂双组分助留助滤体系可适应白水封闭后的湿部化学系统,本文以木素型酚醛树脂和木素作为辅助助剂,应用PEO/木素型酚醛树脂（或木素）于新闻纸生产中的助留助滤,结果表明,PEO/木素型酚醛树脂（或木素）双组分助留助滤体系对新闻纸的生产效果良好。     

新的非离子型微粒助留助滤体系的研究

本文主要从非离子微粒助留助滤体系对浆料的滤水性及留着率的改善来研究其助留助滤性能，以及通过对成纸物理性能的检测来讨论体系对成纸性能的影响。另外，通过与Hydrocol体系(CPAM／膨润土体系)的比较(助留助滤性能及成本方面)，本体系更具可操作性。     

聚氧化乙烯类助剂的助留机理

阐述了聚氧化乙烯单组分助留体系和聚氧化乙烯/辅助剂双组分助留体系的溶液性质和助留机理的研究现状.     

聚氧化乙烯/酚醛树脂双元助留体系对废纸浆助留作用的研究

以废纸浆为主要原料，研究了聚氧化乙烯和酚醛树脂的用量，添加次序以及聚氧化乙烯的分子量对助留效果的影响，并研究了阴离子表面活性剂对其留着效果的影响。     

CPAM/PEO/PFR三元助留助滤体系在双胶纸中的应用

初步研究了CPAM/PEO/PFR三元助留助滤体系在双胶纸中的应用。结果表明 ,该三元助留助滤体系对双胶纸浆料具有良好的助留助滤作用 ,适宜的CPAM/PFR的比例为 2 5 / 75     

有机硅-酚醛树脂共聚物的合成与应用研究

该文利用酚醛树脂与有机硅化合物的接枝共聚反应制备了有机硅改性酚醛树脂,并将其与聚氧化乙烯(PEO)组成双元助留体系,应用于废纸脱墨浆的助留实验。实验结果表明,该双元体系能显著提高细小组分的一次留着率,而影响助留效果的主要因素有助剂的用量、有机硅改性酚醛树脂与PEO的比率、剪切力等。     

油酸、三油酸甘油酯CRC模拟物对新闻纸湿部化学特性的影响

采用了一种机械分散方法制得了呈胶体态的树脂成分(CRC,Colloidal Resin Component)模拟物,并考察了模拟物对新闻纸抄造常用助留体系(PEO/PFR,PEI/CPAM)的影响.着重分析了油酸模拟物、三油酸甘油酯模拟物对系统中Zeta电位、阳离子需求量和一次留着率等参数的影响,并对两种模拟物的影响机理进行了探讨.     

双元助留助滤体系的作用效果初步研究——PEO／PFR在含机木浆中的应用

本文探讨了不同分子量的PEO和不同的PEO／PFR配比在含机木浆的新闻纸抄造中，对抄造性能和纸页物理性能的影响。     

脱墨化学药品对PEO/PFR系统动态助留作用的影响

利用动态滤水仪探讨了脱墨化学药品对 PEO/PFR系统的动态助留作用的影响.     

Antioxidant properties of solid-state fermented adlay and rice by Phellinus linteus

Phellinus linteus (Berkeley & Curtis) Teng (Hymenochaetaceae) was inoculated into cooked grains, and new products were formed after the colonisation of fungal mycelia. Our objective was to evaluate the antioxidant properties of ethanolic and hot water extracts from fermented products [Phellinus-fermented adlay (PFA) and rice (PFR)] as compared to uninoculated controls [polished adlay (PA) and rice (PR)]. PFA and PFR were more effective than were PA and PR in antioxidant activity by the conjugated diene method, reducing power, scavenging ability on 1,1-diphenyl-2-picrylhydrazyl radicals and chelating ability on ferrous ions. Total phenols were the major antioxidant components found in both extracts (1.31–9.10 mg/g). Flavonoid contents were in the range of 0.07–1.26 mg/g. Total phenols and flavonoids of two extracts were associated with antioxidant properties. Based on the results obtained, Phellinus-fermented products possessed effective antioxidant properties.     

Effect of protein-to-fat ratio of milk on the composition, manufacturing efficiency, and yield of cheddar cheese

Twenty-three Cheddar cheeses were prepared from milks with a protein content of 3.66% (wt/wt) and with different protein-to-fat ratio (PFR) in the range 0.70 to 1.15; the PFR of each milk differed by 0.02. For statistical analysis, the 23 cheeses were divided into 3 PFR groups: low (LPFR; 0.70 to 0.85), medium (MPFR; 0.88 to 1.00) and high (HPFR; 1.01 to 1.15), which were compared using ANOVA. The numbers of PFR values in the LPFR, MPFR, and HPFR groups were 9, 7, and 7, respectively. Data were also analyzed by linear regression analysis to establish potentially significant relationships among the PFR and response variables. Increasing PFR significantly increased the levels of cheese moisture, protein, Ca, and P, but significantly reduced the levels of moisture in nonfat substances, fat-in-DM, and salt-in-moisture. The percentage of milk fat recovered in the LPFR cheese was significantly lower than that in the MPFR or HPFR cheeses. In contrast, the recovery of water from milk to the LPFR cheese was significantly higher than that in the MPFR or HPFR cheeses. Increasing the PFR led to a significant decrease in the actual yield of cheese per 100 kg of milk but a significant increase occurred in the normalized yield of cheese per 100 kg of milk with reference values of fat plus protein (3.4 and 3.3%, wt/wt, respectively). The results demonstrate that alteration of the PFR of cheese milk in the range 0.70 to 1.15 has marked effects on cheese composition, component recoveries, and cheese yield.     

阳离子淀粉与碳酸钙预絮聚加填技术研究及生产应用

采用一定取代度的阳离子淀粉与碳酸钙进行预絮聚,通过控制预絮聚体的粒径,可获得具有良好稳定性的预絮聚体。将该预絮聚体用于文化用纸的加填,由于淀粉覆盖在碳酸钙表面,增加了其结合性能,纸张的表面强度及填料留着率均得到一定程度改善。填料留着率平均提高了24.2 个百分点。