增韌尼龍作為增韌塑料的一大品種。從其組成看，應屬于高分子共混合金的范疇。因為，增韌改性高分子材料同樣遵循共混的一般原理，在組成與結構上也是多相體系，但橡膠增韌的機理以及增韌尼龍的制造工藝與尼龍合金有一定的差異；同時，增韌尼龍是非常重要的新型高分子材料。

增韌尼龍品種(zhong)分(fen)類(lei)(lei)有三種(zhong)方(fang)式。按(an)增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)劑(ji)種(zhong)類(lei)(lei)分(fen)類(lei)(lei)，可分(fen)為(wei)(wei)(wei)彈性(xing)(xing)體(ti)(ti)增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)、熱(re)塑性(xing)(xing)彈性(xing)(xing)體(ti)(ti)增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)、剛(gang)(gang)性(xing)(xing)有機(ji)高分(fen)子增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)和(he)無機(ji)剛(gang)(gang)性(xing)(xing)粒(li)子增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)四大(da)(da)類(lei)(lei)，其中前兩種(zhong)應用(yong)最多；按(an)體(ti)(ti)系(xi)組成分(fen)類(lei)(lei)，可分(fen)為(wei)(wei)(wei)增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)、阻燃增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)、增(zeng)(zeng)(zeng)(zeng)強增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)、填充增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)四大(da)(da)類(lei)(lei)；按(an)增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)程度劃分(fen)，可分(fen)為(wei)(wei)(wei)增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)和(he)超韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)，這兩大(da)(da)類(lei)(lei)的(de)(de)(de)劃分(fen)并沒有嚴(yan)格的(de)(de)(de)界限，只是一般(ban)認為(wei)(wei)(wei)彈性(xing)(xing)體(ti)(ti)用(yong)量(liang)小(xiao)于20%，或增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)的(de)(de)(de)缺(que)口(kou)沖擊小(xiao)于50kJ/m2時(shi)為(wei)(wei)(wei)增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)，彈性(xing)(xing)體(ti)(ti)用(yong)量(liang)大(da)(da)于20%，或增(zeng)(zeng)(zeng)(zeng)韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)的(de)(de)(de)沖擊強度大(da)(da)于50KJ/m2時(shi)，可稱為(wei)(wei)(wei)超韌(ren)(ren)(ren)(ren)(ren)(ren)(ren)尼(ni)(ni)龍(long)(long)(long)(long)。