【摘要】 以PMMA,PS,古马龙树脂三种热塑性树脂和MMA,DAP,二烯烃(DE)三种交联剂对通用型不饱和聚酯树脂(Ⅰ)进行改性。结果表明:PMMA使Ⅰ收缩率降低的效果最好;加入16(wt)%的DE,可使Ⅰ的T_g从80℃提高到94℃;DE使Ⅰ的形变很小,加入8(wt)%时,能使抗弯、抗冲强度分别从63MPa,2.5kJ/m~2提高到72MPa,3.4kJ/m~2。更多还原

【Abstract】 This paper reports the modification of general-purpose unsaturated polyester resin(Ⅰ) with thermoplastic PMMA, PS and Coumarone resins (Cou) and crosslinking agents such as MMA, DAP and diolefin (DE). The results show that PMMA appeares to be the best for reducing the shrinkage. With the addition of 16%(wt) DE the T_g of cured resin Ⅰ could be raised from 80℃ to 94℃ and decrease the deformation of the cured resin Ⅰ significantly. With the addition of 8%(wt) DE the bending strength and impact strength of cured resin Ⅰ could be raised from 63 MPa and 2.5 kJ/m~2 to 72 MPa and 3.4 kJ/m~2 respectively.更多还原