CN108307895A - 一种防蛀保温缠绕膜 - Google Patents
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Abstract
本发明公开了一种防蛀保温缠绕膜，包括依次设置的PVC带孔膜层、网状骨架层、编织纤维层、复合防蛀层；所述PVC带孔膜层中的开孔密度为400‑900个/平方米；所述网状骨架层为蜂窝状；所述编织纤维层由经线和纬线编织而成；所述复合防蛀层为双层透水网膜，膜层中间设置有防蛀剂，所述复合防蛀层具有井字形编织线；所述PVC带孔膜层、网状骨架层、编织纤维层和复合防蛀层之间通过压合而成。本发明提供的防蛀保温缠绕膜，具有良好保温性能、透气性能、防蛀性能，且具有成本低、缠绕方便等优点。
Description
技术领域
本发明涉及薄膜制造领域，具体为一种防蛀保温缠绕膜。
背景技术
北方冬季干燥多风，相对湿度大部分时间都较低。寒风会加速树枝枝干中水分的流失，最终导致部分枝或干失水过多而死亡，严重的整株死亡。因此，需要对树干进行防寒防冻处理。现有技术中最常用的方式是缠绕稻草绳，通过在树干上缠绕稻草绳可以达到防寒透气的效果。其余比较常见的方式还包括缠绕保温棉布、设置防风架等，对于较小的树干可缠绕报纸等。但是，现有技术中还存在着不足，例如稻草绳较细，缠绕稻草绳的工作量大；设置防风架的成本高；保温棉布虽然透气性好，但抗寒风能力差。现有技术中也有采用普通PVC薄膜进行缠绕保温，但是普通PVC薄膜的透气性差，包裹后的树干由于昼夜温差大等原因会在薄膜内部积累水汽，经过整个冬天的包裹反而容易导致树木表皮腐烂等现象。
在温度稍微高的南方会将树木涂白，这种白漆采用的是生石灰和硫磺的杀菌作用，工人将配好后的白漆涂覆于树干上，白漆风干后会形成保护层，具有杀菌作用，同时也能反射阳光避免树干因为热胀冷缩而开裂。然而上述方式需要工人每次使用前进行调配，工序较为繁琐，并且涂白的方式保温效果也不佳。
因此，有必要对现有技术中的薄膜进行改进，使其具备良好的保温、透气性能的同时，也具有杀菌防蛀的作用。
发明内容
为了克服上述问题，本发明提供一种具有良好保温性能、透气性能、防蛀性能，且成本低、缠绕方便的保温防蛀保温缠绕膜。
本发明的技术方案是提供一种防蛀保温缠绕膜，包括依次设置的PVC带孔膜层、网状骨架层、编织纤维层、复合防蛀层；所述PVC带孔膜层中的开孔密度为400-900个/平方米；所述网状骨架层为蜂窝状；所述编织纤维层由经线和纬线编织而成；所述复合防蛀层为双层透水网膜，膜层中间设置有防蛀剂，所述复合防蛀层具有井字形编织线；所述PVC带孔膜层、网状骨架层、编织纤维层和复合防蛀层之间通过压合而成。
在一个优选的实施方案中，所述PVC带孔膜层中的孔径为3-8mm，所述PVC带孔膜层的厚度为0.025-0.1mm。所述通孔用于与外界进行气热交换，树干中蒸腾而出的水汽可以通过孔洞排出缠绕膜，避免在膜内累积而形成腐烂。孔洞的数量和孔径必须加以控制，过密集以及过大的孔洞会导致大气中的冷空气过多的进入缠绕膜内，带走过量的水分使得树木干枯，过稀疏或者过小的孔洞会导致密闭性过强，不利于气热交换。因此，必须将孔洞的数量和大小控制在一个合理的范围内。更优选的，所述PVC带孔膜层中的开孔密度为500-750个/平方米，所述PVC带孔膜层中的孔径为4-6mm，所述PVC带孔膜层的厚度为0.05-0.1mm。
在一个优选的实施方案中，所述网状骨架层由PET材料制成，蜂窝状网孔的边长为5-30mm，所述网状骨架层的厚度是0.1-1mm。PET即聚对苯二甲酸乙二醇酯，属结晶型饱和聚酯，具有较好的尺寸稳定性。通过将其制备成蜂窝网状，可以提升整个缠绕膜的刚性。更优选的，蜂窝状网孔的边长为10-20mm，网状骨架层的厚度是0.5-0.8mm。整个网状骨架的厚度不宜过高，过高的骨架厚度会使缠绕膜整体刚性太强，既不容易弯曲，也不容易拉伸，使得缠绕膜无法有效贴合树干表面。过低的骨架厚度会使得刚性不足，容易拉扯变形断裂。
在一个优选的实施方案中，编织纤维层厚度为1-2mm。所述编织纤维可以是本领域中通用的具有保温性能的纤维。优选的纤维材料有：棉纤维、麻纤维、竹纤维、腈纶、涤纶、丙纶、氨纶、维尼纶、尼龙、碳纤维等、玻璃纤维、石棉。在本发明的一个优选实施方式中，棉纤维是较佳的保温材料，尤其是低温隔热棉。交织的棉纤维之间保存了大量空气，而空气是热的不良导体，因此，采用棉纤维能够使本发明的缠绕膜具有较好的保温性能。
在一个优选的实施方案中，所述防蛀剂包含石灰、硫磺、氯化钠和膨润土，以上制剂是本领域中已知的高效防蛀剂。在本发明的技术方案中，以上制剂通过制备成粉体，并设置于双层透水网膜的中间。并用线将所述双层透水网膜缝制成井字形，使粉末状的防蛀剂均匀分布，防止团聚。优选的，粉末的粒径为20-100目。
在一个优选的实施方案中，所述树干保温缠绕膜的宽度为50-350mm。具体的使用宽度与所要缠绕的树木直径相关，较粗的树干部分可以使用宽度较宽的缠绕膜，而较细的树干或者树枝则使用相应较窄的缠绕膜。
在压合生产的过程中，每层之间可适当添加少量压敏胶，优选3M工业压敏胶粘剂。
本发明的有益效果是：
1、本发明中设置的带孔膜层使得缠绕膜在具有保温功能的前提下还具有透气功能；网状骨架可以提供一定韧性的缠绕性能，还具有一定的支撑效果；编织纤维层是保温的主体材料，起到主要保温作用；防蛀层中的防蛀剂为粉末状态，当缠绕后，仅需要用水将膜喷湿即可。缠绕膜整体既具有保温透气效果，也具有防冻防蛀效果。
2、本发明的树干保温缠绕膜使用方便，对需要进行作业的树干直接进行缠绕后浇水即可，方便快捷，省时省力。
附图说明
图1是本发明结构示意图；
图2是本发明结构分解示意图；
图3是本发明结构复合防蛀层结构示意图；
1- PVC带孔膜层，2-网状骨架层，3-编织纤维层，4-复合防蛀层，41-第一透水网膜，42-防蛀剂，43-第二透水网膜，44-编织线。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施例，进一步阐述本发明。
如图1~图2所示，本发明的一种防蛀保温缠绕膜，包括依次设置的PVC带孔膜层1、网状骨架层2、编织纤维层3和复合防蛀层4；其中PVC带孔膜层中的开孔密度为600个/平方米；网状骨架层2为蜂窝状；编织纤维层3由经线和纬线编织而成；各层之间通过添加少量压敏粘合剂压合而成。
具体的，PVC带孔膜层1中的孔径为5mm，厚度为0.08mm。网状骨架层2由PET材料制成，蜂窝状网孔的边长为15mm，所述网状骨架层的厚度是0.5mm。编织纤维层3由棉纤维编织而成，厚度为1.5mm。
如图3所示，为复合防蛀层4的结构示意图，包括第一透水网膜41和第二透水网膜43，其中设置有防蛀剂42，复合防蛀层4采用编织线44编织成井字形。防蛀剂42的成分为石灰10份、硫磺1份、盐1份、膨润土1份。防蛀剂4为粉末状，粒径为50目。
按规格不同，分别制备宽度为50mm、150mm、250mm、350mm四种缠绕膜。
本发明的防蛀保温缠绕膜使用方便，工作人员将其缠绕至树干后，仅需要对其进行喷淋作业，水分从PVC带孔膜层1的孔中流入缠绕膜中，透过透水网膜，与防蛀剂42混合形成防蛀液，防蛀液渗透至树干表皮，风干后形成防蛀效果，本发明的防蛀保温缠绕膜具有保温透气的功效，并且无需再刷防蛀漆，通过缠绕后喷淋的方式也大大减少了工作人员的工作量，实现了快速作业，使成本最优化。
以上实施例仅为本发明其中的一种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。
Claims (7)
1.一种防蛀保温缠绕膜，其特征在于：包括依次设置的PVC带孔膜层、网状骨架层、编织纤维层、复合防蛀层；
所述PVC带孔膜层中的开孔密度为400-900个/平方米；
所述网状骨架层为蜂窝状；
所述编织纤维层由经线和纬线编织而成；
所述复合防蛀层为双层透水网膜，膜层中间设置有防蛀剂，所述复合防蛀层具有井字形编织线；
所述PVC带孔膜层、网状骨架层、编织纤维层和复合防蛀层之间通过压合而成。
2.根据权利要求1所述的防蛀保温缠绕膜，其特征在于：所述PVC带孔膜层中的开孔密度为500-750个/平方米，所述PVC带孔膜层中的孔径为3-8mm，所述PVC带孔膜层的厚度为0.025-0.1mm。
3.根据权利要求1所述的防蛀保温缠绕膜，其特征在于：所述网状骨架层由PET材料制成，蜂窝状网孔的边长为5-30mm，所述网状骨架层的厚度是0.1-1mm。
4.根据权利要求3所述的防蛀保温缠绕膜，其特征在于：所述编织纤维层厚度为1-2mm。
5.根据权利要求1所述的防蛀保温缠绕膜，其特征在于：所述防蛀剂为粉末状，粒径为20-100目。
6.根据权利要求5所述的防蛀保温缠绕膜，其特征在于：所述防蛀剂包含石灰、硫磺、氯化钠和膨润土。
7.根据权利要求1所述的防蛀保温缠绕膜，其特征在于：所述树干保温缠绕膜的宽度为50-350mm。
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