1, Dampen the surface, then paint it with pva adhesive.

2, Why is PVA soluble in water?

3, It was proved that the modified PVA has ortho-nitrogen radicals by molecular structure analysis through infrared spectrum.

4, A novel polyanion electrolyte Phosphate monoester PVA(PMPVA) was synthesized by phosphate monoesterified PVA with phosphoric acid in the presence of urea.

5, PVA coated gloves for solvent resistance were obtained through dip coating.

6, But the cotton fabrics treated by PVA must be desized to enhance their water absorbency.

7, Mix some PVA glue with a little splash of water.

8, The strength of water glass - PVA system silica gel is better and its cost is the lowest.

9, Adopting IPN techniques to recombine PVA and water glass, shaped size of interpenetrating networks structure.

10, PVA film fixed cell is a new cell fixing method.

11, Background: Portal vein arterialization (PVA) has shown efficacy to treat acute liver failure ( ALF ) in preclinical studies.

12, A novel polyanion electrolyte carboxymethylated polyvinyl alcohol(CMPVA)was synthesized by carboxymethylated polyvinyl alcohol(PVA) with monochloroacetic acid and KOH as catalyst.

13, Coal-tar pitch-based carbon microspheres were prepared by adding petroleum pitch using emulsifying pitch-toluene colloidal solution in polyvinyl alcohol (PVA) glycerol solution.

14, PVA gel modified with maleic anhydride has been used in dehydration of alkane(n-heptane)and arene(toluene)oil-water systems.

15, Object: Firstly, we prepared PVA/PEO hydrogel materials and studied their Applications on neutron radiation protection in this issue.

16, After fixing, the cell remains activity, and PVA - calcium alginate ball is quite substantial and durable.

17, The PVA CA blend ultrafiltration membranes were prepared by phase inversion from the casting solution consisting of polyvinyl alcohol(PVA), cellulose acetate(CA), acetic acid and water.

18, The crosslinking reaction of polyvinyl alcohol ( PVA) emulsion with tris (4 - isocyanatophenyl) thio -phosphate (TTPI) was researched by the orthogonal matrix experimental method.

19, Poly(L-lactide)(PLLA) and poly( vinyl alcohol)(PVA) have been widely used as biomedical materials because of their good biocompatibility.

20, A special overlap and border adhesive, like a thick pva,(http:///pva.html) is made for just this type of situation.

21, The feasibility of the application of polyvinyl alcohol ( PVA ) to printed wiring board was studied.

22, Using the orthogonal matrix experimental method, the effects of borax or TDI on the PVA adhesive were discussed.

23, In comparison with the normal separator AA size alkaline Zn-MnO2 battery, the capacity of battery using PVA separator above 1.1V was increased by 25%-30% under 1A constant current discharge.

24, Then an anisotropic film was prepared by this method, we used this anisotropic cinnamoyl -modified PVA film as alignment layer of nematic liquid crystals and got a uniform and stable alignment result.

25, Analysis of milk protein fiber by X-ray diffraction showed that its crystalline region is composed of PVA molecules arranged regularly, and the results amorphous region consists of milk protein.

26, When fibre weaves soybean proteide majority use amylum , PVA and the propenoic acid ester kind blend thick fluid.

27, It was found that the permeability of SNP through the PVA membrane could be controlled by appropriate adjustment of temperature and time of th...

28, The methods of determination of crotonaldehyde in various samples of the PVA(poly vinyl alcohol) producing line by gas chromatography and flame ionization detector are discussed in this paper.

29, To improve the toughness and the ductility of the glutinous rice paper product, some factory illegally add PVA to glutinous rice paper.

30, Results The adhesion force and cohesive strength could be affected by the contents of sodium polyacrylate, PVA, Gelatin.

31, The dialdehyde starch was prepared to condense with PVA form a environmental nontoxic PVAc emulsion adhesive.

32, In this paper, the dynamic mechanical property and the phase inversion of the polyurethane (PU)-polyvinyl(PVA) blend system were studied.

33, The fiber and the PVA have a good combining nature, and the addition of the cocoon fiber enhance the direction of PVA structure.

34, Objective To investigate the long-term effects of portal vein hemodynamic changes on liver function after portal vein arterialization(PVA) in rats.

35, The vascular embolic agents include steel coil, gelfoam, and PVA.

36, Objective To study the relationship of blood flow (ESBF) and the posterior meningeal artery (PMA) and posterior vestibular artery (PVA) in endolymphatic sac of guinea pigs.

37, The cross - linking reaction of polyvinyl alcohol ( PVA ) adhesive was studied by adding diisocyanate ( TDI ).

38, At room temperature, PVA would take over ten days or even longer time to gelate.

39, FT-IR results showed that the Keggin geometry of PWA and PVA were still preserved inside the PWA/PVA composite thin films and a charge-transfer bridge was built between PWA and PVA via hydrogen bond.

40, The PVA-silk composite hydrogel was prepared by reiterative freezing-thawing method using the macromolecular polyvinyl alcohol (PVA) and deglued silk.

41, The result showed that titanate modificator is better than siloxane and PVA ( polyvinyl alcohol ) .

42, Experimental results showed that as spun PVA gel fiber which had high alcohlized homogeneous structure was prepared by the alcoholization spinning process including gellization and alcoholization.

43, The study of the synthesis of linear carbon by the method of dehydrates and dehydrogenate of PVA was consisted of two aspects: the selection of inert gas and the effect of oxygen.

44, The new PVA/PEO hydrogels containing metal ions provide simple and effective shielding materials for high LET neutron radiation.

45, KM PVA Wipers are developed especially for wet cleaning applications in the controlled environment.

46, Good compatibility between PVA and starch was observed by scanning electron microscopy.

47, The results show that the sesbania gum has better viscosity stability, size film and better adhesives to natural fiber, the better sizing effect to PVA can be replaced to some extent.

48, Inner plasticization of modified starch and partial alcoholysis PVA can improve size and size film performance.

49, The hydrophilic modification of polypropylene non-woven fabric (NWF) surface was conducted by coating PVA (poly vinyl alcohol) film on the NWF surface via dip-coating method.

49, try its best to collect and make good sentences.

50, The cross linking modification of polyvinyl alcohol ( PVA ) adhesive was explored adding diisocyanate ( TDI ) and borax.

51, The recovery of polyvinyl alcohol(PVA)from simulated desiring wastewater by new salting-out is investigated. The optimal component ratio of new salting agent is obtained through orthogonal experiment.

52, It is discussed that crosslinking modification of polyvinyl alcohol (PVA) glue with both hexadiisocyanate (HDI) and water glass by the orthogonal matrix experimental method.

53, The adhesive used in pelletizing fine coal can be prepared by the acetalation of nitrified and oxidated fine young brown coal with PVA solution and aldehyde in acid condition.

54, The MH electrode with the 2%PVA and 15%PTFE as the binder has discharge capacity under high rate discharge.

55, By analyzing Perylene Dichroism electron spectra , this paper studies relationship of tropism axis, tropism face and molecule plane in Biaxially-stretched PVA polymer film method experiments.

56, This paper studies the quality index and sizing performance of multifunctional complex size of modified PVA and CD-DF from SIDA.

57, To develop new process technology and produce applied PVA film is an international issue.

58, Experimental results showed that the properties of crosslinked adhesive of PVA are superior than those of polyvinyl acetal adhesive. Further-more, it has innoxious to people, it is a excellent en...

59, Orthogonal design was used in the analysis of the factors that affected the interfacial compatibility of PVA with charcoal powder.

60, Polyvinyl acetate (PVA): A flexible cold melt adhesive made from synthetic resins. It has low initial tack but good penetration and excellent flexibility.

61, Poly(vinyl alcohol)(PVA)-based polyanion was prepared by esterification of PVA with sulfuric acid.

62, Methods 34 patients with fibroid were treated by intra - arterial embolization of PVA particles and Gelfoam stick after super - selective catheterization.

63, Mixed bacteria could degrade poly ( vinyl alcohol ) ( PVA ) completely and produce extracellular PVA - degrading enzyme.

64, To reduce the use of PVA in size formula in polyester cotton blended product, and reduce sizing cost, sizing practice of using low alcoholization PVA-217SB and Runli size mixture were done.

65, The mechanism of reaction between PVA and dialdehyde starch was discussed and the factors on reaction were investigated also.

66, The pervaporation separation of water - ethanol mixture was carried out using PVA membrane crosslinked by culinary acid.

67, Subsequently, the micromorphology of PVA hydrogel was observed by means of optical microscopy and SEM.

68, Using water soluble PVA ( polyvinyl fibre ) manufacture super weight worsted fabric, it can improve production's quality and price.

69, The polyanionic membrane material was synthesized with alcohol ( PVA ) and vitriol as raw materials via ultrasonic.

70, The results of fluorescence spectrophotometry and DSC suggested that the interaction of PVA with staphylokinase did not destroy advanced structures of staphylokinase.

71, One tool for assessing the impact of forestry on the ecosystem is population viability analysis ( PVA ).

72, The experimental results show that the coating has higher strength contained PVA organic binder than con- tained colloidal silica inorganic binder at room temperature.

73, The polyvinyl alcohol ( PVA ) modified electrode has been prepared on the basis of glassy carbon electrode.

74, Lead titanate nanorods with different length and diameter ratios have been successfully fabricated via hydrothermal method, PVA and PAA with different concentrations assisted as additives.

75, With PVA fibers or vinylon fibers as reinforced fibers, the effects of hydration time, hydration method and fibers on mechanical properties of cement pastes were studied.

76, The effects of these factors on the formation of PVA membrane, the interfacial characteristics and adhesion of PVA to charcoal powder were discussed.

77, METHOD: Using proper method to draw the medicinal heard , PVA as base to prepare pellicle.

78, The synergistic chromogenic reaction of Nb(V) with both bromopyrogallol red(BPR) and diantipyrylmethane(DAM) in the presence of polyvinyl alcohol(PVA) is studied.

79, Through PVA is excellent size, it is difficult to biodegrade and pollutes environment.

80, The result showed physiological and bio-chemical change of Chinese Milk Vetch with PVA pretreatment have adapted stress of low temperature before winter.

81, The PVA - PAN composite membrane was applied to remove water from aqueous acetone solution by pervaporation.

82, Glue photocopies on the underside of the glass using a PVA adhesive.

83, To add a little calcium alginate into boric acid cross-linkedpolyving akohol(PVA)and permeate active sludge culture into the mix, and at last apply the mix on carrier to make film.

84, The results showed that the tensile, tear and ring crush compression resistance of the paper increased by using water-soluble PVA fibers.

85, Dialysis and ethylene diamine tetraacetic acid ( EDTA ) were used for improving electrospinnability of the PVA.

86, The influence on fibers density and shrinkage by PVA and glycerin content is studied via parameter-transformation procession.

87, For solving the problem of hard degradation of PVA, a new generation of biodegradation enzymes has been developed, which can fast biodegrade PVA waste liquor.

88, The ferric sulfate modified PVA UF membranes, PVA-CA (cellulose acetate) blend UF membrane and the metal chloride modified PVA-CA blend UF membrane were prepared for the first time by phase inversion.

89, The theoretical calculation and the testing method of PVA adsorbed layer were given is this paper.

90, It can increase yarn number and decrease cost by using PVA to produce wool blending fabrics.

91, Objective To investigate the microvascular changes of hepatohilar bile duct after portal vein arterialization (PVA) in rats.

92, Modification of PVA and blown film technique for it were studied.

93, According to pVA and polymer emulsion mix with antisolvent and water resistance.

94, The adhesive of table tennis racket which was solubility was produced by modified PVA using nano - silica.