The invention relates to a method for preparing door and window profiles based on cross-linking technology of building energy-saving PVC doors and windows, which relates to a method for preparing door and window profiles. The invention solves the problem that the door and window profiles of the PVC material will be degraded, resulting in the failure of various performance indexes of doors and windows to meet the requirements of use. 1: with high energy electronic radiation as the source of radiation, the PVC plastic and aluminum lining are coextruded to be prepared, and a crosslinker is added to the surface of the PVC plastic to be prepared. Two: the C CL bond of the surface layer PVC of the PVC plastic is broken and formed free radical under the action of the radiation source; and three: cross linking under the action of the radiation source The free radical produced by the agent is self polymerized. In step 2, the effective grafting of CL is replaced by the replacement of CL in the PVC long chain of the surface layer of the PVC plastic. The strength of the radiation source is adjusted to form the long chain of the PVC crosslinking agent PVC, and the final cross linker branch chain is formed to form a network distribution. The invention is used to prepare the door and window profiles.
【技术实现步骤摘要】
一种基于建筑节能PVC门窗交联技术的门窗型材制备方法步骤一:以高能电子射线作为辐射源,向待制备PVC塑料与铝衬进行内外层共挤,待制备PVC塑料的内表面层不做变动,在待制备PVC塑料的外表层添加交联剂,同时添加引发剂;步骤二:在辐射源的作用下,待制备PVC塑料的外表面层PVC的C-CL键发生断裂,进而形成自由基;步骤三:在辐射源的作用下,交联剂产生的自由基进行自聚合反应,在步骤二中待制备PVC塑料的外表面层PVC长链中替代掉CL形成有效接枝;步骤四:根据需自备门窗型材的需求,调整辐射源的强度,以实现形成PVC-交联剂-PVC的长链,同时根据交联剂的自聚合,实现交联剂支链增长,最终交联剂支链形成网状分布,从而形成基于建筑节能PVC门窗交联技术门窗型材的制备。2.根据权利要求1所述的基于建筑节能PVC门窗交联技术的门窗型材制备方法,其特征在于所述步骤一中添加的交联剂采用多官能团不饱和单体交联剂,引发剂为过氧化二异丙苯。3.根据权利要求2所述的基于建筑节能PVC门窗交联技术的门窗型材制备方法,其特征在于所述步骤一中添加的交联剂采用三烯丙基异氰尿酸酯交联剂,引发剂为过氧化二异丙苯。
【技术保护点】
一种基于建筑节能PVC门窗交联技术的门窗型材制备方法,其特征在于所述制备方法步骤如下:步骤一:以高能电子射线作为辐射源,向待制备PVC塑料与铝衬进行内外层共挤,待制备PVC塑料的内表面层不做变动,在待制备PVC塑料的外表层添加交联剂,同时添加引发剂;步骤二:在辐射源的作用下,待制备PVC塑料的外表面层PVC的C‑CL键发生断裂,进而形成自由基;步骤三:在辐射源的作用下,交联剂产生的自由基进行自聚合反应,在步骤二中待制备PVC塑料的外表面层PVC长链中替代掉CL形成有效接枝;步骤四:根据需自备门窗型材的需求,调整辐射源的强度,以实现形成PVC‑交联剂‑PVC的长链,同时根据交联剂的自聚合,实现交联剂支链增长,最终交联剂支链形成网状分布,从而形成基于建筑节能PVC门窗交联技术门窗型材的制备。
【技术特征摘要】
1.一种基于建筑节能PVC门窗交联技术的门窗型材制备方法,其特征在于所述制备方法步骤如下:步骤一:以高能电子射线作为辐射源,向待制备PVC塑料与铝衬进行内外层共挤,待制备PVC塑料的内表面层不做变动,在待制备PVC塑料的外表层添加交联剂,同时添加引发剂;步骤二:在辐射源的作用下,待制备PVC塑料的外表面层PVC的C-CL键发生断裂,进而形成自由基;步骤三:在辐射源的作用下,交联剂产生的自由基进行自聚合反应,在步骤二中待制备PVC塑料的外表面层PVC长链中替代掉CL形成有效接枝;步骤四:根据需自备门窗型材的需...
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