RESULTS:①Heparinized collagen showed absorption bands at 850 cm-1.②The combination rate of the blend film approached to 56% and the rupture strength was 45 MPa as 0.1mL glutaraldehyde(5 g/L) was added.
Orthogonal experiment was used to optimize the modification conditions and the results were as follows:urea concentration 6 mol/L,SPI concentration 8%,sodium sulfite concentration 1.0%,temperature 25℃,pH 9.0.Under these conditions,the protein content of the blend film is 13.87%.
Based on casting and solvent evaporation method,the degradable PLA/PVA blend film was prepared with polylactic acid(PLA) and polyvinyl alcohol(PVA) as raw material.
The 2 cm×4 cm skin traumatism model was established on both sides of the waist spinal column in 14 New Zealand rabbits each weighing 1.5-2.0 kg. One side was covered with blend film, the other side was used as a control.
The heterolysis rate of blend film steep was smaller than 5%,so the konjac glucomannan-chitosan blend film was considered to have good cell compatibility.
Treating the PVC/PE blend film with a near 6 solvent of PVC,the PE phase is still transparent and the PVC phase changes from transpa-rent into opaque and obviously increases the contrast of these two phases.
The experiment results show that the excellent blend film can be obtained by using trichloromethane and dichloromethane as solvent when the mass fraction of PSA was the range between 10%-30%. PSA was firstly degraded and can be mostly degraded in the degradation of blend film in the first 3 days, and the pH value of degradation solution has been changed to 3.0 and the weight loss of the blend film was 12.4% after 21days.
RESULTS:①Heparinized collagen showed absorption bands at 850 cm-1.②The combination rate of the blend film approached to 56% and the rupture strength was 45 MPa as 0.1mL glutaraldehyde(5 g/L) was added.
This paper deals with the mechanical properties and degree of swelling (DS) of starch/PVA blend film with the functional groups i.e., hydroxyl and carboxyl group, of additives.
A new method to analyse the phase morphology of PVC/PE blends has beenestablished.Treating the PVC/PE blend film with a near 6 solvent of PVC,the PE phase is still transparent and the PVC phase changes from transpa-rent into opaque and obviously increases the contrast of these two phases.Thus,the phase morphology of the blend can be studied with an optical micro-scope very easily.In this paper,the influence of PVC/PE blend ratio on thephase morphology and mechanical properties ...
In this paper, the resistant principle and technology of preparation of washing resistant, acid resistant, caustic soda-resistant, water-proof and vapour-permeable coated fabrics were introduced. The modification technique was studied of AR502lpolyacrylate solvant-based coating for. textiles by blending including compatibility between components, morphology and mechnnical properties of blend film and the effect of blending ratio on properties of coated fabrics.
The fire retardant property of the PVA /PVC blend fibre and film was measured by several testing methods in this paper. The results show that SnO2-and Sb2O3-containing PVA/PVC(≥25/75) blend film and fibre both exhibit good fire retardancy.