Treatment of ultrahigh molecular weight polyolefin to improve adhesion
to a resin
    4.
    发明授权
    Treatment of ultrahigh molecular weight polyolefin to improve adhesion to a resin 失效
    处理超高分子量聚烯烃以提高与树脂的粘合力

    公开(公告)号:US5039549A

    公开(公告)日:1991-08-13

    申请号:US614070

    申请日:1990-11-14

    IPC分类号: C08J7/18

    CPC分类号: C08J7/18 Y10T428/3192

    摘要: Method and apparatus for treating ultrahigh molecular weight, high strength polyolefin to improve its adhesive bonding to a resin such as epoxy, vinyl ester, polyester, polyurethane, polyolefin or thermoplastic rubber are provided. The method includes the steps of soaking the polyolefin in a first solution comprising (i) an aromatic ketone photosensitizer, and (ii) a first solvent selected from the group consisting of a benzene derivative, an alkyl halide, and a cyclic alkane; removing any excess first solvent; coating the surface of the polyolefin with a second solution comprising (i) about 15 to 70 weight percent of a monomer independently selected from the aforementioned group, (ii) about 0.25 to 5 weight percent of an aromatic ketone photosensitizer, and (iii) about 25 to 84.75 weight percent of a solvent selected from the group consisting of a low boiling point alcohol and a low boiling point ketone; exposing the coated polyolefin to a sufficient amount of irradiation to surface graft the monomer of the second solution to the polyolefin; washing the treated polyolefin; and drying for suitable packaging. The apparatus features an irradiation treatment chamber through which the polyolefin is passed in a cooled tube for treatment.

    摘要翻译: 提供了用于处理超高分子量高强度聚烯烃以改善其与树脂如环氧树脂,乙烯基酯,聚酯,聚氨酯,聚烯烃或热塑性橡胶的粘合剂粘合的方法和设备。 该方法包括以下步骤:将聚烯烃浸泡在包含(i)芳族酮光敏剂的第一溶液中,和(ii)选自苯衍生物,烷基卤和环烷烃的第一溶剂; 除去任何多余的第一溶剂; 用第二溶液涂覆聚烯烃表面,所述第二溶液包含(i)约15至70重量%的独立地选自前述基团的单体,(ii)约0.25至5重量%的芳族酮光敏剂,和(iii)约 25-84.75重量%的选自低沸点醇和低沸点酮的溶剂; 将涂覆的聚烯烃暴露于足够量的照射以将第二溶液的单体表面接枝到聚烯烃上; 洗涤经处理的聚烯烃; 并干燥适合包装。 该装置具有辐射处理室,通过该辐射处理室,聚烯烃通过冷却管进行处理。