三种胶体材料及其复合物作为骨粘合剂的粘合强度比较

Comparative study on adhesive strength of three colloid materials and their complexes as bone adhesives

目的比较研究海藻酸钠、瓜尔胶、羧甲基纤维素钠等三种胶体及其复合物作为骨粘合剂对骨块的粘合强度。方法采用弹簧测力计,用简化的力学方法进行粘合强度的测定和计算。结果和结论三种胶体都在饱和溶液时达到最大粘合强度,相应粘合强度大小依次为:瓜尔胶>海藻酸钠>羧甲基纤维素钠,复合胶体也在饱和溶液时达到其最大粘合强度,但其粘合强度介于两种组成胶体的粘合强度之间,复合胶体综合了三种胶体各自的特性,将为后续骨粘合材料的研究提供较有价值的复合胶体材料。

Objective To comparatively investigate the adhesive strength of sodium alginate, guar gum, sodium carboxymethylcellulose and their complexes as the bone adhesives. Methods A simplified mechanical measurement by using springs＇ force ergometer was used to de- termine and calculate the adhesive strength of the colloid materials. Results and Conclusion The three colloid materials had their strongest adhesive strength in their saturated water so- lutions. Their adhesive strengths were in the following order： guar gum〉sodium alginate〉 sodium carboxymethylcellulose. Their complexes also obtained the stongest adhesive strength in their saturated water solutions, but their adhesive strength was between their component colloid materials. The complexes integrate the characteristics of the three colloid materials and would provide valuable complex materials for the study of bone adhesives.