二甲苯甲醛樹脂淡黃色至棕色粘性(xing)(xing)(xing)透明液體，分(fen)子組成中有(you)80%以(yi)上為二(er)甲(jia)(jia)(jia)苯(ben)(ben)次甲(jia)(jia)(jia)基(ji)結構(gou)，比重 1.06-1.10不揮(hui)發物(wu)含(han)量(liang) ≥90%活(huo)性(xing)(xing)(xing)氧含(han)量(liang) 9-12%粘度(du)(du) 70-150MPaS酸(suan)值(zhi)≤0.3mgKOH/g、分(fen)子結構(gou)中含(han)有(you)羥基(ji)、醚鍵(jian)等(deng)活(huo)性(xing)(xing)(xing)基(ji)團。故它能溶于(yu)(yu)(yu)多(duo)種聚合物(wu)二(er)甲(jia)(jia)(jia)苯(ben)(ben)甲(jia)(jia)(jia)醛樹(shu)(shu)脂(zhi)，如聚氯乙烯、硝酸(suan)纖維素、過氯乙烯、聚氨酯(zhi)(zhi)、環氧樹(shu)(shu)脂(zhi)、不飽(bao)(bao)和(he)聚酯(zhi)(zhi)樹(shu)(shu)脂(zhi)樹(shu)(shu)脂(zhi)等(deng)等(deng)。能起到增(zeng)塑，增(zeng)韌作用(yong)(yong)，增(zeng)加粘接強度(du)(du)，改進光澤，降(jiang)低利(li)息二(er)甲(jia)(jia)(jia)苯(ben)(ben)供(gong)(gong)應(ying)商(shang)。用(yong)(yong)酚類改性(xing)(xing)(xing)，制成耐熱、耐濕潤性(xing)(xing)(xing)良好的(de)不同用(yong)(yong)途的(de)改性(xing)(xing)(xing)樹(shu)(shu)脂(zhi)二(er)甲(jia)(jia)(jia)苯(ben)(ben)供(gong)(gong)應(ying)商(shang)。例如用(yong)(yong)叔丁酚改性(xing)(xing)(xing)的(de)二(er)甲(jia)(jia)(jia)苯(ben)(ben)樹(shu)(shu)脂(zhi)，可(ke)用(yong)(yong)于(yu)(yu)(yu)印(yin)刷油墨和(he)氧化橡(xiang)膠，用(yong)(yong)苯(ben)(ben)酚改性(xing)(xing)(xing)可(ke)制得砂輪、剎車片等(deng)的(de)粘接劑二(er)甲(jia)(jia)(jia)苯(ben)(ben)供(gong)(gong)應(ying)。用(yong)(yong)多(duo)元醇改性(xing)(xing)(xing)后，用(yong)(yong)于(yu)(yu)(yu)聚氨脂(zhi)二(er)甲(jia)(jia)(jia)苯(ben)(ben)供(gong)(gong)應(ying)，可(ke)增(zeng)加光澤二(er)甲(jia)(jia)(jia)苯(ben)(ben)甲(jia)(jia)(jia)醛樹(shu)(shu)脂(zhi)，提高對金屬及(ji)(ji)木(mu)材的(de)粘接力。與不飽(bao)(bao)和(he)酸(suan)等(deng)反應(ying)可(ke)制成耐熱、耐腐蝕(shi)、吸水性(xing)(xing)(xing)低的(de)不飽(bao)(bao)和(he)聚酯(zhi)(zhi)樹(shu)(shu)脂(zhi)以(yi)及(ji)(ji)飽(bao)(bao)和(he)聚酯(zhi)(zhi)樹(shu)(shu)脂(zhi)。