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粉体应用

应用
相容剂的制备及其在纳米碳酸钙填充高密度聚乙烯中的应用
通过熔融接枝的方法制备了高分子型界面相容剂HDPE-g-MMH,并将其应用于HDPE/CaCO3填充体系,考查了HDPE-g-MAH对HDPE/CaCO3填充体系的增容效果和增容机理。结果显?HDPE-g-MAH有效提高了HDPE/CaCO3两相组分的界面黏?使复合材料的力学性能有明显的改善 Interfacial compatibilizer HDPE-g-MAH for nano-meter CaCO3/HDPE composite was prepared by means of melt extrusion-grafting. The effect and mechanism of HDPE-g-MAH on the composite were studied. The result showed interface bonding was formed between nano-meter CaCO3 and HDPE matrix, which improved the mechanical properties of the composite obviously....

25929

2008-03-04

应用
纳米碳酸钙在PVC型材中应用研穵/a>
研究纳米碳酸?CaCO_3)在PVC/CPE体系中的应用,讨论了改进前后纳米CaCO_3对PVC体系流变行为的影?并测试了纳米CaCO_3对型材性能的影响。结果表?改进后纳米CaCO_3 P100流变性接近生产试?可用于挤出生?改进后的纳米CaCO_3显著提高了型材的性能,可增韧增强PVC复合体系 Use of nanometer calcium carbonate(CaCO_3)in PVC/CPE was studied,effects of nano- CaCO_3 prior and after modification on rheological behaviour of PVC sustemwere discussed and effects of nano-CaCO_3 on performance of the profile were tested.Testing results showed that rheology of the nano-CaCO_3 P100 after modification was almost the same as that of the sample.The nano-CaCO_3 P100 after modification enhanced performance of the profile could be used for extrusion to toughen PVC composite system.K...

26871

2007-12-24

应用
造纸工业用填料的改性及应用
介绍了造纸用填料的基本性质,综述了填料改性的原理和技?指出造纸用填料的改性的重要意义 This review introduced the properties of filler used in paper making,and summarized the principle and technology of filler modification.It pointed out that the filler modifying technology plays an important role in the paper making industry....

3978

2007-12-05

应用
改善碳酸钙加填纸强度性能的研究进屔/a>
从预絮聚技术、纤维细胞内加填技术、细小纤?碳酸钙复合技术及表面改性技术等方面,对改善碳酸钙加填纸强度性能的技术进行了综述,指出了相关研究、开发及应用的重要性 In this paper, some of the emerging techniques relating to calcium carbonate application including pre-? occulation, lumen loading, cell wall loading, fi nes-calcium carbonate composite, surface modifi cation of calcium carbonate and newly-structured functional synthetic calcium carbonate were reviewed in depth, and the signifi cance of further exploration and applications of such techniques was also emphasized....

4293

2007-08-29

应用
轻质碳酸钙在低定量双胶纸中的应用
介绍了轻质碳酸钙的物理性能及在低定量双胶纸中的应用与注意事项。应用结果表?轻质碳酸钙提高了纸张的不透明度、白度、松厚度及填料留着?但同时对施胶度、表面强度及纸机的首程留着率有一定的影响 This article introduced the physical properties of PCC and its application in light weight offset paper.The application results showed that PCC could increase the opacity, brightness and bulk of light weight offset paper. However it may also lower its sizing degree, and surface strenth as well as the furnish first-pass retention. Somethings should pay attention to in PCC application were pointed out....

4569

2007-08-29

应用
超细尼龙粉改性水性PU漆的机械性能与外见/a>
在水性PU漆中添加超细尼龙12(PA12,商品名为Orgasol),可以改善水性PU漆的耐磨、耐擦划和耐污性。添加不同粒径的Orgasol可以获得柔和的砂纹效?同时也可以改善涂膜的光泽、附着力和颜色 The abrasion resistance,scrab resistance and stain resistance of the waterborne polyurethane coatings are improved by adding ultrafine polyamide powder (PA12, with commerial name being Orgasol). Orgasol with different diameter can make coating film show muted sand texture, meanwhile can improve the gloss, adhesion and color of the coating film....

3861

2007-08-22

应用
石灰石粉作掺合料对混凝土工作性能的影哌/a>
通过Marsh筒[1]、胶砂流动度及实测混凝土和易性等方法,研究了石灰石粉作掺合料对混凝土工作性能的影?并与粉煤灰的效果相对比。试验结果表昍一定颗粒分布的石灰石粉能改善新拌混凝土的流动性能,减少泌水率及缩短凝结时间 The influence of limestone powder admixture on working performance of concrete is discussed,which is evaluated by Marsh cone[1],fluidity of cement mortar and workability of concrete mixed.Simultaneously,this study also contrasts the working performance of concrete containing limestone powder admixture as well as fly ash.It is shown that the limestone powder with appropriate particle distribution can improve the fluidity of concrete,reduce bleeding rate and shorten the setting time....

3937

2007-08-21

应用
磷渣粉对混凝土物理性能影响的研穵/a>
通过磷渣粉对混凝土物理性能影响的实验研?探讨了磷渣粉对水泥净浆需水量、水泥净浆和混凝土凝结时间、混凝土流动性、高性能混凝土抗压强度等的影响情?从而为磷渣作为混凝土掺合料提供了可行性依据 Through experimental study of the influences of phosphorus slag on physical property of concrete,the article discusses the influences of phosphorus slag on cement slurry water requirement,cement slurry and concrete setting time,concrete fluidity and high-performance concrete compressive strength,in order to offer feasibility basis for using phosphorus slag as concrete addition....

3915

2007-08-14

应用
硅灰石改性及填充工程塑料ABS的研穵/a>
对硅灰石粉的表面改性效果及填充ABS塑料力学性能的研究表?不同的改性剂、改性剂用量、改性时间等工艺条件对硅灰石的改性效果有重要影响。经γ-(甲基丙烯酰氧?丙基三甲氧基硅烷改性后的硅灰石填充工程塑料ABS,增强了复合材料的刚性和熔体流动?其他力学性能虽有小幅下降,但不影响其在工程上的使用;同时降低了ABS塑料使用的成?在填充量?0%?可降低成?5% Surface modif ication of wollastonite and mechanical property of wollastonite-f illed ABS were studied.The results showed that different modifi cation reagent, quantity of modifi cation reagent, time of modifi cation would affect surface modifi cation of wollastonite. Wollastonite treated by γ-methacryloxypropyl trimethoxy silane f illed ABS can improve composite’s rigidity, but its other mechanical properties had little decline. Wollastonite- Filled ABS not only can reduce its cast ,but also didn’t effect ......

4484

2007-07-31

应用
纳米碳酸钙对SBR胶料性能的影哌/a>
试验研究纳米碳酸钙对SBR胶料性能的影响。结果表?单用纳米碳酸钙填充SBR?随着纳米碳酸钙用量的增大,胶料的硫化速度加快,硫化胶的硬度、拉伸强度和撕裂强度增大,回弹值减?耐磨性和抗湿滑性能提高;纳米碳酸钙与炭黑N330并用填充SBR?随着纳米碳酸钙用量的增大,胶料的硫化速度变化不大,硫化胶的拉伸强度和撕裂强度减?回弹值减?耐磨性下?抗湿滑性能提高?..

3820

2007-07-31

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