天然胶乳制备超薄避孕套的研究

Study on Preparation of Ultra-Thin Condom by Natural Latex

研究氧化石墨烯、细菌纤维素和纳米微晶纤维素补强天然胶乳胶膜并以纳米微晶纤维素胶乳试制超薄避孕套。结果表明:氧化石墨烯补强胶膜有黑斑点,氧化石墨烯用量较大时胶膜容易收缩、开裂,弹性较差,强度也较低;细菌纤维素补强胶膜粗糙,有白斑点,拉伸强度和撕裂强度较低,细菌纤维素的补强效果较差;纳米微晶纤维素A补强胶膜定伸应力、拉伸强度、拉断伸长率和撕裂强度较高,纳米微晶纤维素A的补强效果明显;采用纳米微晶纤维素A和B试制天然胶乳超薄避孕套,当纳米微晶纤维素A和B用量为0.2份时,超薄避孕套的外观均良好,拉伸强度均较高。

The natural latex films reinforced by graphene oxide,bacterial cellulose and nanomicrocrystalline cellulose were studied,and the ultra-thin condom was trial produced with nanomicrocrystalline cellulose latex.The results showed that,the film reinforced by graphene oxide had black spots.When the amount of graphene oxide was large,the film was easy to shrink and crack,with poor elasticity and low strength.The film reinforced by bacterial cellulose was rough with white spots,low tensile strength and tear strength,and the reinforcement effect of bacterial cellulose was poor.The modulus,tensile strength,elongation at break and tear strength of the film reinforced by nano microcrystalline cellulose A were high,and the reinforcing effect of nano microcrystalline cellulose A was obvious.When the dosage of nano microcrystalline cellulose A and B was 0.2 phr,the trial produced natural latex ultra-thin condom had good appearance and high tensile strength.