橡胶籽油基光固化树脂在立体痕迹提取中的应用研究

doi:10.3969/j.issn.1673-5854.2022.01.004

Abstract

Abstract:

Using rubber seed oil (RSO) as raw material, hydroxylated rubber seed oil was firstly prepared, and then it was reacted with isophorone diisocyanate and pentaerythritol triacrylate to obtain rubber seed oil-based polyurethane acrylate oligomers (RSO-PUA). The obtained oligomers were then blended with different types of thinners hydroxyethyl methacrylate (HEMA) and 1, 6-hexanediol diacrylate (HDDA) to form UV-curable resins. Then, the ultimate properties of the resultant materials in casting stereoscopic impressions were investigated and compared with the traditional stereoscopic impression casting materials (silicone casting material and impression compound). The experimental results showed that when the amount of HEMA was 20% and the amount of HDDA was 30%, the obtained RSO-PUA showed the best performance in casting stereoscopic impressions. The casting stereoscopic impressions with rubber seed oil-based UV-curable resins had the following properties, easy manipulation, fast curing time, controllable, viscosity, obtained complete, vivid and sharpness impression casts, qualified for inspection and identification. However, the casts prepared from silicone casting material and impression compound had some shortcomings, such as feature defect, bubble generation and incomplete impression reflection.

Key words: rubber seed oil, polyurethane acrylate UV-curable resin, indented impression, casting material

CLC Number:

TQ35

Fei ZHANG, Yun HU, Jiatong LIU, Yonghong ZHOU, Chengguo LIU. Application of Rubber Seed Oil-based UV-curable Resins in Casting Stereoscopic Impressions[J]. Biomass Chemical Engineering, 2022, 56(1): 23-29.

Figures/Tables 7

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References 15

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制模材料 casting material	存储时间和质量 storage time and quality	价格 price	细节特征反映能力 detail feature reflection ability	硬度和稳定性 hardness and stability	是否具备同一认定条件 whether it meets the same qualifications	使用方便性 convenience of operation
硅橡胶 silicone casting material	不确定 indeterminate	昂贵 expensive	不好(存在特征缺损) unsatisfactory(characteristic defect)	不好 unsatisfactory	否 no	需将催化剂与硅橡胶混合，所需固化时间长need mixing the catalysts with silicone rubber and long curing time
打样膏 impression compound	很好 very good	便宜 cheap	不确定(与痕迹表面状况相关) indeterminate(related to surface condition of impression)	好 good	不确定(与痕迹形态相关) indeterminate(related to the form of impression)	需温水融化，操作麻烦 need warm water melting and operation trouble
橡胶籽油基光固化树脂 rubber seed oil-based UV-curable resin(RSO-PUA)	很好 very good	适中(原材料可再生) mezzo(renewable raw material)	很好 very good	好(可控可调节) good(controllable and adjustable)	是 yes	配好后放置在瓶中备用，操作简便，不脏不乱 placing in the bottle in reserve after matching, easy to operate, not dirty

样品 samples	痕迹轮廓反映是否完整 whether the trace contour reflects complete	立体特征反映是否明显 whether the three-dimensional feature reflects obvious	模型是否出现裂纹 whether the model has cracks
RSO-PUA	完整complete	不明显not obvious	不出现not appear
RSO-PUA-HEMA-1	非常完整very complete	明显obvious	不出现not appear
RSO-PUA-HEMA-2	非常完整very complete	非常明显very obvious	不出现not appear
RSO-PUA-HEMA-3	非常完整very complete	非常明显very obvious	出现appear
RSO-PUA-HEMA-4	非常完整very complete	非常明显very obvious	出现appear
RSO-PUA-HDDA-1	非常完整very complete	明显obvious	不出现not appear
RSO-PUA-HDDA-2	非常完整very complete	明显obvious	不出现not appear
RSO-PUA-HDDA-3	非常完整very complete	非常明显very obvious	不出现not appear
RSO-PUA-HDDA-4	非常完整very complete	非常明显very obvious	出现appear

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Application of Rubber Seed Oil-based UV-curable Resins in Casting Stereoscopic Impressions

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