发泡

Effects of foaming agent、vulcanizer and the match of the two on the compress stress relaxation of the silicone rubber foam were studied.

研究了发泡剂用量以及发泡剂与硫化剂之间的匹配等对硅橡胶泡沫材料压缩应力松弛的影响。

We observed changes of GV chromatin configurations in porcine, caprine and bovine oocytes from follicles of different sizes and degrees of atresia and during maturation in vivo and in vitro, using a new method for preparation of GV samples.

本项目发明了一种特殊的卵母细胞生发泡标本制备技术，能克服脂肪滴等对生发泡染色质构型观察的阻碍；经Hoechst或CMA3染色后可清楚地观察染色质构型的变化。

The results indicate that the foamed metals have the structure of dodecahedron with pentagonum casement toward space outspread. The framework self is the tube shape channels, which are cavate and nonentirely sealing. The whole framework is a maze structure connecting by this kind of channels. Folds and hollows besprinkle the surface of foamed nickel skeleton.

结果表明用本文方法制备的发泡金属是一种向空间延伸的具有五边形窗的十二面体结构，发泡金属骨架本身是中空的、非完全封闭式的管状&通道&，整个骨架就是由这种&通道&连接的&迷宫&式的结构。

There are some basic chemicophysics problems about the foaming extrusion processing to be studied and clarified. The relationship between the formula, the processing condition, the apparatus parameter setting and the density, the physicomechanical properties, rheological property, were researched in detail in this artical, according to the extrusion process of PVC in the rheometer.

但在其低发泡挤出过程中尚有许多基本化学物理问题有待研究，本文利用PVC在流变仪的挤出加工，详细研究了相关配方、工艺条件、设备参数设定与发泡PVC制品的密度、物理机械性能以及加工流变性的关系。

This paper deals with making stop bleeding sponge with dried small shrimps. Firstly breaking away with inorganic salt and proteir in the dried small shrimps with acid and NaOH, secondly, taking off vinyl-in the chitin with 50% NaOH, temperature is 110 ℃. the last, reacting with chitosamine and PVA-124 make stop bleeding sponge were produced, catalyst is PdCl 2. The sponge film and sparkce is setatisfaction.

用虾壳经除盐，去蛋白处理后，用50％的NaOH溶液在110℃的温度下脱乙酰基制备壳聚糖；以1∶9的稀醋酸溶作溶剂，氯化钯作催化剂，甲苯二异氰酸酯作发泡剂、交联剂，使壳聚糖与PVA－124进行交联成膜，发泡用氨水洗成中性后在80℃的红外灯烘箱下烘干，制得止血海棉

Dispersant, comburent, frother and mineralizer were added in the system successively, then it needed several minutes to combust at 600℃ directly, the non-grinding long afterglow powdery material SrAl_2O_4∶Eu~(2+),Dy~(3+) was obtained.

向体系内添加分散剂、燃烧剂、发泡剂和矿化剂，于低温下进行燃烧-发泡反应，一步制备了不球磨的SrAl2O4∶Eu2+，Dy3+长余辉粉体材料。

The results show that the foamable MAA/MAN copolymers were prepared at 40-60℃ by polymerizing the mixture of 50phr MAA, 50phr MAN, 1-5phr magnesium oxide, 2-8phr butanol and tert-butanol, 0.2-0.3 phr dibenzoyl peroxide and tert-butyl perbenzoate and 0.1-0.2phr DMF. Then the resulting copolymers were expanded at 200-220℃ for 2-3h, subsequently treated at 160℃ for 5-6h, generating PMI foams with excellent mechanical properties and heat-resistance.

研究结果表明：将50份MAA、50份MAN、1~5份氧化镁、2~8份正丁醇、叔丁醇的混合物、0.2~0.3份过氧化二苯甲酰和过氧化苯甲酸叔丁酯和0.1~0.2份的甲酰胺，混合均匀后在40~60℃聚合为可发泡的MAA/MAN共聚物，该共聚物在200~220℃下发泡2~3h，在160℃下热处理5~6h，制得PMI泡沫塑料，其力学性能和耐热性能优异。

This experiment uses lime carbonate, kaolin clay and starch as filler, uses sorbitol, ethanediol and chitosan as hygroscopic agent, under without foaming and foaming systems conditions, study filler and hygroscopic agent affect on tear strength, tensile strength, moisture coefficient and gas permeability of this film, and research mechanics of ventilation and moisture-penetrability of experiment preparing PE film by SEM.

本实验以碳酸钙、高岭土和淀粉为填料，山梨醇、乙二醇和壳聚糖为吸湿剂，分别在无发泡体系和有发泡体系的PE薄膜中，研究填料和吸湿剂对聚乙烯微孔薄膜的撕裂强度、拉伸强度、透湿系数和透气性能的影响。

High elastic etherate is applied to foam on the spot in normal temperature and normal pressure,so as to form the foam whose inner surface is the same as that of the jade craftwork and whose foaming ratio is high.The profile is cutted by laser and its surface is electrostaticly woolimplanted.

采用高回弹组合醚在常温常压下现场发泡，成型出与玉器工艺品外形吻合、发泡倍率较高的泡沫体，用激光刀剖切并对剖切面及成型轮廓面进行静电植绒，做出了外形美观、减震效果优异的高档内包装。

Rising of fertilization membrane during induced maturation indicates insemination is not necessary to form the fertilization membrane. The oocyte will not become fertilizable until GVBD has happened and can still be fertilized after the second polar body extrusion.

卵母细胞只有在生发泡破裂之后才具有受精能力，从生发泡破裂到第二极体排出前的整个减数分裂过程中，卵母细胞都可以受精，但是只有在第一极体排出前受精的卵母细胞才能发生卵裂。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。