The positron annihilation lifetime spectrum(PALS) method was employed to study the effect of proton radiation on microstructure of the space grade KH-L-Y polysilicone rubber.
用正电子淹没寿命谱方法（PAL S）研究了质子辐照对空间级硅橡胶KH- L - Y微观结构的影响。
2
They have different kinetic parameter respectly and the ratio of loss of mass in two process is different from mass ratio between PUR and polysilicone in the PUR polysilicone system.