CN105729816A - 纺粘聚丙烯板及其制造方法 - Google Patents
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- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract
一种纺粘聚丙烯板,包括PP塑料板、化纤网格层,其结构特点是:所述化纤网格层呈网状纤维结构,所述PP塑料板为两层,化纤网格层位于两层PP塑料板之间,化纤网格层与PP塑料板为热熔合连接。具有抗冲击程度,板材不容易被破坏的特点。一种纺粘聚丙烯板的制造方法,其特征在于:包括以下步骤a)整体主设备的一方向上具有挤出设备A,在挤出设备A内部把聚丙烯颗粒、聚乙烯颗粒原料、改性材料、辅助材料充分混合形成配方原料后倒入搅拌结构中进行搅拌;具有成品率高、流水线生产程度高的特点。
Description
技术领域
本发明涉及一种板材及其制造方法,尤其是一种纺粘聚丙烯板及其制造方法。属于合成板材技术领域。
背景技术
现有技术中普通的塑料板材由于本身材料的延展性和刚度较弱,其物理特性表现为容易碎裂、抗冲击强度差,抗拉强度弱,耐破程度小。再而,长期使用后普通塑料板材的平整度容易受到影响,塑料板材表面容易有鼓起、波浪纹、翘曲的现象一方面影响美观,另一方面影响其性能,在家具使用中尤其明显,导致使用麻烦。普通塑料板材使用寿命低,一般三年左右就会氧化变形,需要定期更换经济成本高。普通塑料板材板身较软,在长期周转使用中,容易导致板材出现折痕,不能正常使用浪费材料。
为此,需要设计一种纺粘聚丙烯板及其制造方法,纺粘聚丙烯板具有不易碎裂、抗冲击强度强、抗拉强度强、耐破程度高、长期运送不出现折痕、寿命长的特点,纺粘聚丙烯板的制造方法具有制造简单、成本低、快速高效的特点。
发明内容
本发明的目的是解决现有技术中普通的塑料板材容易碎裂、抗冲击强度差,抗拉强度弱,耐破程度小的问题;提供一种纺粘聚丙烯板及其制造方法,纺粘聚丙烯板具有三层结构,化纤网格层位于两层PP塑料板之间,三层结构相互热熔合连接,不易碎裂、抗冲击强度强、抗拉强度强、耐破程度高;纺粘聚丙烯板的制造方法通过热熔、黏合阶段后由辊筒热压形成纺粘聚丙烯板,具有制造简单便于流水线生产的特点。
本发明的目的可以通过采取以下技术方案达到:
一种纺粘聚丙烯板,包括PP塑料板、化纤网格层,其结构特点是:所述化纤网格层呈网状纤维结构,所述PP塑料板为两层,化纤网格层位于两层PP塑料板之间,化纤网格层与PP塑料板为热熔合连接。
本发明的目的还可以通过采取以下技术方案达到:
进一步地,所述PP塑料板含有聚丙稀80%、聚乙稀15%、POE3%、色母2%。
一种纺粘聚丙烯板的制造方法,其特征在于:包括以下步骤
a)整体主设备的一方向上具有挤出设备A,在挤出设备A内部把聚丙烯颗粒、聚乙烯颗粒原料、改性材料、辅助材料充分混合形成配方原料后倒入搅拌结构中进行搅拌;
b)搅拌均匀后,通过传送带将搅拌结构中的配方原料传送到挤出结构中;再经过挤出结构传输到温度为220℃至250℃,压力为11Kpa的熔解舱结构,充分熔解形成聚合物,聚合物通过漏斗结构打入螺杆,再挤压到过滤结构内;
c)过滤后将聚合物推送到计量泵,计量泵再通过预先设计好的定量,按照设计量将聚合物挤出至模具,聚合物于模具中成型,到此完成第一层PP塑料板;
d)整体主设备的另一方向具有挤出设备B,采用和挤出设备A同样的聚合物挤出方式,将聚合物挤出模具后形成第二层PP塑料板,并和步骤c)制成的第二层PP塑料板进入热熔合成工序;
e)第三方向输送利用纺粘法制成的化纤网格层至整体主设备的热熔合成工序;
f)步骤c)和步骤d)生产出来的第一层PP塑料、第二层PP塑料板与步骤e)的化纤网格层于整体主设备的热熔合成工序进行热熔压合,将化纤网格层夹于第一层PP塑料、第二层PP塑料板之间,依次通过热熔、黏合阶段后由辊筒热压形成纺粘聚丙烯板;
g)纺粘聚丙烯板经过若干冷却辊筒进行阶段渐冷,纺粘聚丙烯板冷却成型;
h)成型后的纺粘聚丙烯板再通过牵引成型、分切毛边以及模具裁切,制成纺粘聚丙烯板材成品。
本发明的目的还可以通过采取以下技术方案达到:
进一步地,步骤a)的配方原料为聚丙稀80%、聚乙稀15%、POE3%、色母2%。
本发明的有益效果
本发明中一种纺粘聚丙烯板,包括PP塑料板、化纤网格层,所述化纤网格层呈网状纤维结构,所述PP塑料板为两层,化纤网格层位于两层PP塑料板之间,化纤网格层与PP塑料板为热熔合连接。纺粘聚丙烯板相对于普通塑料板因内部增加了化纤网格层。该化纤网格层使纺粘聚丙烯板具有如下突出效果:
1、化纤网格层为网状纤维,大大增强了板材的抗冲击程度,板材不容易被破坏;
2、纺粘聚丙烯板因内有化纤网格层,纵向、横向有了相互的牵拉和延伸,使该板材不会出现鼓起或波浪纹或翘曲的现象,大大增强其平整度;
3、增加化纤网格层使得板材整体受力点分散,使用过程中挺度增强,不会出现折痕等现象,可延长使用寿命三倍;
4、增加了板材的挺度,0.6mm厚度的新产品即可达到原来1mm厚度产品的效果,使得材料节省了40%,强度较之前更好,大大节约了材料成本,节能减排保护环境。
配方原料为聚丙稀80%、聚乙稀15%、POE3%、色母2%为其中一种优选方案。POE为聚氧化乙烯,采取该配方原料,可使纺粘聚丙烯板达到结构更加稳定的效果。
本发明一种纺粘聚丙烯板的制造方法,如步骤a)至步骤h)所述,纺粘聚丙烯板的配方原料从进入整体主设备开始为混合物,无需中途加入任何物料,工艺方便。挤出设备A、挤出设备B以及化纤网格层的制造,该三层结构可同时工作,待三层结构均制造完毕后,即共同进入热熔合成工序;既大大节约制造时间,也大大节约经济成本。聚合物料通过计量泵后再挤出至模具,保证每块PP塑料板的用料量相同从而制造的纺粘聚丙烯板规格相同,合格率高。步骤f)中第一层PP塑料、第二层PP塑料板、化纤网格层于整体主设备的热熔合成工序进行热熔压合,通过热熔、黏合阶段后由辊筒热压形成纺粘聚丙烯板;以及步骤g)纺粘聚丙烯板经过若干冷却辊筒进行阶段渐冷,纺粘聚丙烯板冷却成型;由于其热熔合成工序以及冷却阶段均为辊筒工作,适合流水线生产,使热熔合成工序热熔合均匀、熔合程度相同,产品规格一致;冷却阶段采取不同温度的辊筒进行渐冷却,防止温度骤变出现次品。
采取纺粘法制造化纤网格层为一种优选措施,可使化纤网格层结构更加可靠耐用,化纤网格层也可采取其他现有技术进行制造。
本发明相对普通塑料板材的物理特性,具有不易碎裂、抗冲击强度强、抗拉强度强、耐破程度高、寿命长、环保节能的突出效果;纺粘聚丙烯板的制造方法具有成品率高、流水线生产程度高的突出效果。
附图说明
图1是本发明具体实施例的结构示意图;
图2是本发明具体实施例的工艺流程框图。
具体实施方式
现参照图1、2以及具体实施例具体阐明本发明:
参照图1,本实施例中一种纺粘聚丙烯板,包括PP塑料板1、化纤网格层2,其特征在于:所述化纤网格层2呈网状纤维结构,所述PP塑料板1为两层,化纤网格层2位于两层PP塑料板1之间,化纤网格层2与PP塑料板1为热熔合连接。
所述PP塑料板1含有聚丙稀80%、聚乙稀15%、POE3%、色母2%。
参照图2,一种纺粘聚丙烯板的制造方法,其特征在于:包括以下步骤
a)整体主设备的一方向上具有挤出设备A,在挤出设备A内部把聚丙烯颗粒、聚乙烯颗粒原料、改性材料、辅助材料充分混合形成配方原料后倒入搅拌结构中进行搅拌;
b)搅拌均匀后,通过传送带将搅拌结构中的配方原料传送到挤出结构中;再经过挤出结构传输到温度为220℃至250℃,压力为11Kpa的熔解舱结构,充分熔解形成聚合物,聚合物通过漏斗结构打入螺杆,再挤压到过滤结构内;
c)过滤后将聚合物推送到计量泵,计量泵再通过预先设计好的定量,按照设计量将聚合物挤出至模具,聚合物于模具中成型,到此完成第一层PP塑料板1;
d)整体主设备的另一方向具有挤出设备B,采用和挤出设备A同样的聚合物挤出方式,将聚合物挤出模具后形成第二层PP塑料板,并和步骤c)制成的第二层PP塑料板1进入热熔合成工序;
e)第三方向输送利用纺粘法制成的化纤网格层2至整体主设备的热熔合成工序;
f)步骤c)和步骤d)生产出来的第一层PP塑料1、第二层PP塑料板1与步骤e)的化纤网格层2于整体主设备的热熔合成工序进行热熔压合,将化纤网格层2夹于第一层PP塑料1、第二层PP塑料板1之间,依次通过热熔、黏合阶段后由辊筒热压形成纺粘聚丙烯板;
g)纺粘聚丙烯板经过若干冷却辊筒进行阶段渐冷,纺粘聚丙烯板冷却成型;
h)成型后的纺粘聚丙烯板再通过牵引成型、分切毛边以及模具裁切,制成纺粘聚丙烯板材成品。
本实施例中,步骤e)的纺粘法是将化纤的纺丝和非织造布的成网、固化技术相结合的工艺方法。
本实施例中,步骤a)的配方原料为聚丙稀80%、聚乙稀15%、POE3%、色母2%。
本实施例原理:
PP塑料板为:聚丙烯(PP)添加入各种功能助剂经挤出、压光、冷却、切割等工艺过程而制成的塑料板材。
纺粘聚丙烯板的制造方法中,化纤网格层的制造所采取的纺粘法为现有技术,纺粘法的原理是将高聚物纺丝、牵伸、铺叠成网,最后经针刺、水刺、热轧或自身粘合等方法加固形成非织造材料。该非织造材料呈纤维网状结构。配方原料的成分不限定于本发明的成分比例,可根据不同的需要对聚丙烯颗粒、聚乙烯颗粒原料、改性材料、辅助材料的成分进行不同配方。
以上所述,仅为本发明较佳的具体实施例,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的范围内,根据本发明的技术方案及其构思加以等同替换或改变,都属于本发明的保护范围。
Claims (4)
1.一种纺粘聚丙烯板,包括PP塑料板(1)、化纤网格层(2),其特征在于:所述化纤网格层(2)呈网状纤维结构,所述PP塑料板(1)为两层,化纤网格层(2)位于两层PP塑料板(1)之间,化纤网格层(2)与PP塑料板(1)为热熔合连接。
2.根据权利要求1所述的纺粘聚丙烯板,其特征在于:所述PP塑料板(1)含有聚丙稀80%、聚乙稀15%、POE3%、色母2%。
3.根据权利要求1或2所述的纺粘聚丙烯板的制造方法,其特征在于:包括以下步骤
a)整体主设备的一方向上具有挤出设备A,在挤出设备A内部把聚丙烯颗粒、聚乙烯颗粒原料、改性材料、辅助材料充分混合形成配方原料后倒入搅拌结构中进行搅拌;
b)搅拌均匀后,通过传送带将搅拌结构中的配方原料传送到挤出结构中;再经过挤出结构传输到温度为220℃至250℃,压力为11Kpa的熔解舱结构,充分熔解形成聚合物,聚合物通过漏斗结构打入螺杆,再挤压到过滤结构内;
c)过滤后将聚合物推送到计量泵,计量泵再通过预先设计好的定量,按照设计量将聚合物挤出至模具,聚合物于模具中成型,到此完成第一层PP塑料板(1);
d)整体主设备的另一方向具有挤出设备B,采用和挤出设备A同样的聚合物挤出方式,将聚合物挤出模具后形成第二层PP塑料板,并和步骤c)制成的第二层PP塑料板(1)进入热熔合成工序;
e)第三方向输送利用纺粘法制成的化纤网格层(2)至整体主设备的热熔合成工序;
f)步骤c)和步骤d)生产出来的第一层PP塑料(1)、第二层PP塑料板(1)与步骤e)的化纤网格层(2)于整体主设备的热熔合成工序进行热熔压合,将化纤网格层(2)夹于第一层PP塑料(1)、第二层PP塑料板(1)之间,依次通过热熔、黏合阶段后由辊筒热压形成纺粘聚丙烯板;
g)纺粘聚丙烯板经过若干冷却辊筒进行阶段渐冷,纺粘聚丙烯板冷却成型;
h)成型后的纺粘聚丙烯板再通过牵引成型、分切毛边以及模具裁切,制成纺粘聚丙烯板材成品。
4.根据权利要求3所述的纺粘聚丙烯板的制造方法,其特征在于:步骤a)的配方原料为聚丙稀80%、聚乙稀15%、POE3%、色母2%。
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