光固化水(shui)(shui)(shui)(shui)(shui)(shui)性(xing)(xing)涂(tu)(tu)(tu)料(liao)一(yi)般(ban)由基(ji)(ji)(ji)(ji)料(liao)樹(shu)脂(zhi)(zhi)(zhi)、光引(yin)發劑(ji)、添加(jia)劑(ji)和水(shui)(shui)(shui)(shui)(shui)(shui)組成。基(ji)(ji)(ji)(ji)料(liao)樹(shu)脂(zhi)(zhi)(zhi)是涂(tu)(tu)(tu)料(liao)體系的主(zhu)體成分，涂(tu)(tu)(tu)料(liao)*終(zhong)固化膜的性(xing)(xing)能(neng)(neng)主(zhu)要(yao)由基(ji)(ji)(ji)(ji)料(liao)樹(shu)脂(zhi)(zhi)(zhi)決定。除個別*聲稱可以在(zai)水(shui)(shui)(shui)(shui)(shui)(shui)性(xing)(xing)體系中進(jin)(jin)行環氧(yang)(yang)、環醚(mi)等的陽(yang)離子(zi)光聚合外，光固化水(shui)(shui)(shui)(shui)(shui)(shui)性(xing)(xing)涂(tu)(tu)(tu)料(liao)所用的基(ji)(ji)(ji)(ji)料(liao)樹(shu)脂(zhi)(zhi)(zhi)一(yi)般(ban)是以自由基(ji)(ji)(ji)(ji)進(jin)(jin)行交聯的樹(shu)脂(zhi)(zhi)(zhi)。對于*代(dai)光固化水(shui)(shui)(shui)(shui)(shui)(shui)性(xing)(xing)涂(tu)(tu)(tu)料(liao)來(lai)說，所用樹(shu)脂(zhi)(zhi)(zhi)就是通常的光固化涂(tu)(tu)(tu)料(liao)使用的樹(shu)脂(zhi)(zhi)(zhi)，帶有丙(bing)烯酰氧(yang)(yang)基(ji)(ji)(ji)(ji)等光活性(xing)(xing)官能(neng)(neng)團，一(yi)般(ban)沒有親(qin)水(shui)(shui)(shui)(shui)(shui)(shui)鏈(lian)段或基(ji)(ji)(ji)(ji)團。第二代(dai)以后的樹(shu)脂(zhi)(zhi)(zhi)則(ze)引(yin)入了親(qin)水(shui)(shui)(shui)(shui)(shui)(shui)結(jie)構(gou)，分子(zi)鏈(lian)上含有親(qin)水(shui)(shui)(shui)(shui)(shui)(shui)鏈(lian)段（如聚乙二醇鏈(lian)段）或離子(zi)基(ji)(ji)(ji)(ji)團如羧基(ji)(ji)(ji)(ji)等，或兩種親(qin)水(shui)(shui)(shui)(shui)(shui)(shui)結(jie)構(gou)同時存在(zai)。

        光固(gu)化(hua)(hua)水性涂料(liao)的(de)(de)基料(liao)樹(shu)脂(zhi)中為自由(you)基光固(gu)化(hua)(hua)而引(yin)入的(de)(de)不飽(bao)和(he)(he)官能團包括(kuo)丙(bing)(bing)烯(xi)酰氧(yang)基、甲基丙(bing)(bing)烯(xi)酸酯(zhi)(zhi)(zhi)(zhi)基、烯(xi)丙(bing)(bing)氧(yang)基和(he)(he)乙烯(xi)基等。其(qi)中前(qian)兩(liang)者的(de)(de)光固(gu)化(hua)(hua)活性高，因而較多采用(yong)。就樹(shu)脂(zhi)的(de)(de)分子骨(gu)架來說，用(yong)于光固(gu)化(hua)(hua)水性涂料(liao)的(de)(de)基料(liao)樹(shu)脂(zhi)主要由(you)不飽(bao)和(he)(he)聚酯(zhi)(zhi)(zhi)(zhi)、聚氨酯(zhi)(zhi)(zhi)(zhi)丙(bing)(bing)烯(xi)酸酯(zhi)(zhi)(zhi)(zhi)、丙(bing)(bing)烯(xi)酸酯(zhi)(zhi)(zhi)(zhi)化(hua)(hua)聚丙(bing)(bing)烯(xi)酸酯(zhi)(zhi)(zhi)(zhi)、聚酯(zhi)(zhi)(zhi)(zhi)丙(bing)(bing)烯(xi)酸酯(zhi)(zhi)(zhi)(zhi)和(he)(he)環(huan)氧(yang)丙(bing)(bing)烯(xi)酸酯(zhi)(zhi)(zhi)(zhi)等以及(ji)上述樹(shu)脂(zhi)的(de)(de)混雜。