CN104086857A - 一种高弹性木塑材料的制备方法 - Google Patents

一种高弹性木塑材料的制备方法 Download PDF

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CN104086857A
CN104086857A CN201410304386.5A CN201410304386A CN104086857A CN 104086857 A CN104086857 A CN 104086857A CN 201410304386 A CN201410304386 A CN 201410304386A CN 104086857 A CN104086857 A CN 104086857A
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plastic material
feeding machine
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何军
许世华
李靖
戴东花
严永刚
陈龙
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Jiangsu Sveisheng New Material Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C48/25Component parts, details or accessories; Auxiliary operations
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Abstract

本发明公开了一种高弹性木塑材料的制备方法,包括(1)将废塑料PP或PE98-99.5份和交联剂DCP0.5-2份在低混机中搅拌5min得到第一物料;(2)将EPDM20-40份;木纤维10-30份;白油20-50份;润滑剂3-6份;加入到高混机中先行混合,后至冷混机中混合得到第二物料;(3)将步骤(1)和步骤(2)所述的物料分别加入平行双螺杆造粒机的主喂料机和侧喂料机中造粒;(4)将造粒后的物料加入到锥形双螺杆挤出机中挤出成型,得到高产品。本发明的有益效果为:本发明所述的木塑材料抗冲击强度高、拉伸断裂伸长率显著增强,抗冲击强度是普通木塑材料的4倍以上,拉伸断裂伸长率是普通木塑材料的15倍以上。

Description

一种高弹性木塑材料的制备方法
技术领域
本发明涉及一种高弹性木塑材料的制备方法,属于木塑材料制备技术领域。
背景技术
传统的木塑材料由于其组成中,木粉填充量高,导致其抗冲击强度较低,如传统的木塑材料的抗冲击强度为3-5KJ/m2,拉伸断裂伸长率为10-30%,因此只能用于性能要求较低的低端场所。
发明内容
本发明的目的在于提供一种抗冲击强度高、且制备过程简单的高弹性木塑材料的制备方法。
为解决上述技术问题,本发明采用的技术方案为:
一种高弹性木塑材料的制备方法,其特征在于,包括以下步骤:
(1)制备第一物料:将废塑料PP或PE:98-99.5份和交联剂DCP:0.5-2份在低混机中搅拌约5min,然后出料得到第一物料备用;
(2)制备第二物料:将EPDM:20-40份;木纤维:10-30份;白油:20-50份;润滑剂:3-6份;加入到高混机中,以1500-2500r/min的高速搅拌15-20min,待其温度达到105℃后,将上述物料卸料至冷混机中,冷却至40℃后,出料得到第二物料备用;
(3)造粒:将步骤(1)制备得到的第一物料加入平行双螺杆造粒机的主喂料机中,将步骤(2)制备得到的第二物料加入侧喂料机中,进行造粒,其中主喂料机的转速为200-380r/min,侧喂料机的转速为200-380r/min,且所述的的平行双螺杆造粒机共形成有八区,而所述的侧喂料机位于五区内,在此步骤中,第一物料和第二物料在五区—八区中发生动态硫化,其中木纤维含有大量的羟基官能团,在动态硫化过程中作为助交联剂;
(4)挤出成型制备高弹性木塑:将步骤(3)造粒后的物料加入到锥形双螺杆挤出机中挤出成型得到高弹性木塑材料。
进一步,步骤(3)中所述的平行双螺杆造粒机的八区的温度分别为:一区200-210℃、二区200-210℃、三区200-210℃、四区200-210℃、五区180-190℃、六区180-190℃、七区180-190℃、八区180-190℃,且所述的平行双螺杆造粒机的主机电流为200-280A,转速为320-380r/min。
步骤(4)中所述的锥形双螺杆挤出机共形成有四区,其中一区温度为180-195℃,二区温度为180-195℃,三区温度为165-175℃,四区温度为160-170℃,且锥形双螺杆挤出机的合流芯温度为150-165℃,模具温度为170-190℃,主机电流为35-48A,主机转速为12-22r/min,喂料转速为18-35 r/min。
本发明的有益效果为:本发明通过原料配方以及制备方法的改进,使得最终的木塑材料抗冲击强度高、拉伸断裂伸长率显著增强,其中,抗冲击强度是普通木塑材料的4倍以上,拉伸断裂伸长率是普通木塑材料的15倍以上。
具体实施方式
下面结合具体实施例详细说明本发明。
实施例1:
制备高弹性木塑材料包括以下步骤:
(1)制备第一物料:将废塑料PP:98份和交联剂DCP2份在低混机中搅拌约5min,然后出料得到第一物料备用;
(2)制备第二物料:将EPDM:40份;干燥的木纤维:10份;白油:45份;润滑剂:5份;加入到高混机中,以2500r/min的高速搅拌15min,待其温度达到105℃后,将上述物料卸料至冷混机中,冷却至40℃后,出料得到第二物料备用;
(3)造粒:将步骤(1)制备得到的第一物料加入平行双螺杆造粒机的主喂料机中,将步骤(2)制备得到的第二物料加入侧喂料机中,进行造粒,其中主喂料机的转速为380r/min,侧喂料机的转速为350r/min,且所述的的平行双螺杆造粒机共形成有八区,而所述的侧喂料机位于第五区内,且所述的平行双螺杆造粒机的八区的温度分别为:一区210℃、二区210℃、三区210℃、四区210℃、五区190℃、六区190℃、七区190℃、八区190℃,且所述的平行双螺杆造粒机的主机电流为280A,转速为370r/min;
(4)挤出成型制备高弹性木塑:将步骤(3)造粒后的物料加入到锥形双螺杆挤出机中挤出成型,得到高弹性木塑材料,所述的锥形双螺杆挤出机共形成有四区,其中一区温度为195℃,二区温度为195℃,三区温度为175℃,四区温度为170℃,且锥形双螺杆挤出机的合流芯温度为165℃,模具温度为190℃,主机电流为48A,主机转速为22r/min,喂料转速为35 r/min。
上述方法制备得到的高弹性木塑材料的性能为:抗冲击强度86KJ/m2,拉伸断裂伸长率450%。
 
实施例2:
制备高弹性木塑材料包括以下步骤:
(1)制备第一物料:将废塑料PP:99.5份和交联剂DCP:0.5份在低混机中搅拌约5min,然后出料得到第一物料备用;
(2)制备第二物料:将EPDM::30份;干燥的木纤维:30份;白油:37份;润滑剂:3份;加入到高混机中,以1500r/min的高速搅拌15min,待其温度达到105℃后,将上述物料卸料至冷混机中,冷却至40℃后,出料得到第二物料备用;
(3)造粒:将步骤(1)制备得到的第一物料加入平行双螺杆造粒机的主喂料机中,将步骤(2)制备得到的第二物料加入侧喂料机中,进行造粒,其中主喂料机的转速为250r/min,侧喂料机的转速为380r/min,且所述的的平行双螺杆造粒机共形成有八区,而所述的侧喂料机位于第五区内,且所述的平行双螺杆造粒机的八区的温度分别为:一区200℃、二区200℃、三区200℃、四区200℃、五区180℃、六区180℃、七区180℃、八区180℃,且所述的平行双螺杆造粒机的主机电流为200A,转速为320r/min;
(4)挤出成型制备高弹性木塑:将步骤(3)造粒后的物料加入到锥形双螺杆挤出机中挤出成型,得到高弹性木塑材料,所述的锥形双螺杆挤出机共形成有四区,其中一区温度为180℃,二区温度为180℃,三区温度为165℃,四区温度为160℃,且锥形双螺杆挤出机的合流芯温度为150℃,模具温度为170℃,主机电流为35A,主机转速为12r/min,喂料转速为18 r/min。
上述方法制备得到的高弹性木塑材料的性能为:抗冲击强度16 KJ/m2,拉伸断裂伸长率120%。
 
实施例3:
制备高弹性木塑材料包括以下步骤:
(1)制备第一物料:将废塑料PE:99份和交联剂DCP1份在低混机中搅拌约5min,然后出料得到第一物料备用;
(2)制备第二物料:将EPDM:35份;干燥的木纤维:20份;白油:40份;润滑剂:5份;加入到高混机中,以2000r/min的高速搅拌18min,待其温度达到105℃后,将上述物料卸料至冷混机中,冷却至40℃后,出料得到第二物料备用;
(3)造粒:将步骤(1)制备得到的第一物料加入平行双螺杆造粒机的主喂料机中,将步骤(2)制备得到的第二物料加入侧喂料机中,进行造粒,其中主喂料机的转速为350r/min,侧喂料机的转速为250r/min,且所述的的平行双螺杆造粒机共形成有八区,而所述的侧喂料机位于第五区内,且所述的平行双螺杆造粒机的八区的温度分别为:一区205℃、二区205℃、三区205℃、四区205℃、五区185℃、六区185℃、七区185℃、八区185℃,且所述的平行双螺杆造粒机的主机电流为255A,转速为360r/min;
(4)挤出成型制备高弹性木塑:将步骤(3)造粒后的物料加入到锥形双螺杆挤出机中挤出成型,得到高弹性木塑材料,所述的锥形双螺杆挤出机共形成有四区,其中一区温度为190℃,二区温度为190℃,三区温度为170℃,四区温度为165℃,且锥形双螺杆挤出机的合流芯温度为160℃,模具温度为180℃,主机电流为42A,主机转速为18r/min,喂料转速为29 r/min。
上述方法制备得到的高弹性木塑材料的性能为:抗冲击强度32 KJ/m2,拉伸断裂伸长率260%。
本发明按照上述实施例进行了说明应当理解,上述实施例不以任何形式限定本发明,凡采用等同替换或等效变换方式所获得的技术方案,均落在本发明的保护范围之内。

Claims (3)

1.一种高弹性木塑材料的制备方法,其特征在于,包括以下步骤:
(1)制备第一物料:将废塑料PP或PE:98-99.5份和交联剂DCP:0.5-2份在低混机中搅拌约5min,然后出料得到第一物料备用;
(2)制备第二物料:将EPDM:20-40份;木纤维:10-30份;白油:20-50份;润滑剂:3-6份;加入到高混机中,以1500-2500r/min的高速搅拌15-20min,待其温度达到105℃后,将上述物料卸料至冷混机中,冷却至40℃后,出料得到第二物料备用;
(3)造粒:将步骤(1)制备得到的第一物料加入平行双螺杆造粒机的主喂料机中,将步骤(2)制备得到的第二物料加入侧喂料机中,进行造粒,其中主喂料机的转速为200-380r/min,侧喂料机的转速为200-380r/min,且所述的的平行双螺杆造粒机共形成有八区,而所述的侧喂料机位于五区内,在此步骤中,第一物料和第二物料在五区—八区中发生动态硫化,其中木纤维含有大量的羟基官能团,在动态硫化过程中作为助交联剂;
(4)挤出成型制备高弹性木塑:将步骤(3)造粒后的物料加入到锥形双螺杆挤出机中挤出成型,得到高弹性木塑材料。
2.根据权利要求1所述的一种高弹性木塑材料的制备方法,其特征在于,步骤(3)中所述的平行双螺杆造粒机的八区的温度分别为:一区200-210℃、二区200-210℃、三区200-210℃、四区200-210℃、五区180-190℃、六区180-190℃、七区180-190℃、八区180-190℃,且所述的平行双螺杆造粒机的主机电流为200-280A,转速为320-380r/min。
3.根据权利要求1所述的一种高弹性木塑材料的制备方法,其特征在于,步骤(4)中所述的锥形双螺杆挤出机共形成有四区,其中一区温度为180-195℃,二区温度为180-195℃,三区温度为165-175℃,四区温度为160-170℃,且锥形双螺杆挤出机的合流芯温度为150-165℃,模具温度为170-190℃,主机电流为35-48A,主机转速为12-22r/min,喂料转速为18-35 r/min。
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