CN102898852B - 一种椰子树枝叶纤维基木塑复合材料及其制备方法 - Google Patents

一种椰子树枝叶纤维基木塑复合材料及其制备方法 Download PDF

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CN102898852B
CN102898852B CN201210424000.5A CN201210424000A CN102898852B CN 102898852 B CN102898852 B CN 102898852B CN 201210424000 A CN201210424000 A CN 201210424000A CN 102898852 B CN102898852 B CN 102898852B
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plastic composite
composite material
leaves
coconut palm
wood
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CN102898852A (zh
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熊雪平
徐长妍
徐朝阳
王广静
朱赛铃
王启慧
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Kunlun Hainan new materials Polytron Technologies Inc
Nanjing Forestry University
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HAINAN KUNLUN NEW MATERIAL TECHNOLOGY CO LTD
Nanjing Forestry University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911Cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04Particle-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/385Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/78Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/875Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/91Heating, e.g. for cross linking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/9258Velocity
    • B29C2948/9259Angular velocity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885Screw or gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895Barrel or housing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92904Die; Nozzle zone

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  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

本发明公开一种椰子树枝叶纤维基木塑复合材料及其制备方法,该制备方法,先将废弃PE瓶盖制备成粒径为40~100目的碎料,将自然脱落的椰子树枝叶制备成粒径为50~100目的纤维,并按照以下重量配比进行配方:椰子树枝叶纤维55%~75%,高密度聚乙烯15%~25%,其他助剂(1、增溶剂2、偶联剂3、润滑剂4、着色剂5、防菌剂6、紫外线稳定剂7、分散剂8、抗氧剂9、交联剂等)10~20%,经高混、造粒、挤出及后期表面加工等工序,制得椰子树枝叶纤维基木塑复合材料。本发明产品具有防水、防蛀、防腐、木质感强、表面硬度高、耐磨性强、使用寿命长、不含甲醛等诸多优点,是一种节材代木的典型环保材料,可应用于室内外装饰场合,尤其适用于构造户外亲水景观。

Description

一种椰子树枝叶纤维基木塑复合材料及其制备方法
技术领域
本发明涉及一种木塑复合材料及其制备方法,具体地说,是一种椰子树枝叶纤维基木塑复合材料及其制备方法。
背景技术
聚合物基木塑复合材料(Wood-plastic Composites,缩写WPC)是将低质生物质纤维经过处理后与塑料混合熔融加工成为兼有基料性能优点的复合材料。根据广泛的科技情报查阅及市场调查发现,木粉纤维基木塑复合材料起步最早,应用最广,同时一些农作物秸秆如甘蔗渣、棉桔杆、亚麻基木塑复合材料也正逐步进入产业化过程。
椰子树广泛于分布于菲律宾、斯里兰卡、印度及我国海南省、广东省等热带和亚热带国家和地区,“浑身都是宝”,椰子果实可以加工成椰干和椰子油等食品;椰子木可加工成材质细腻、纹理清晰的优质木材,应用于木结构建筑、家具、工艺品等,有“木质塑料”之美称;椰壳纤维可做增强材料,也可制取活性炭。但是,有关椰子树枝叶利用的研究未见报道。如今,在海南、广东等椰子树资源丰富的城市和地区,自然脱落的、具有轻微防腐功能的椰子树枝叶随处可见,严重影响交通安全和城市市容。如何解决椰子树枝叶的环境污染问题已经被环保部门提上实施日程。
被环保部门视为“心头之患”的椰子树枝叶,不仅纤维素含量高,而且具有优良的力学性能,耐热性能和绝缘性能较好,叶柄纤维模量较高,是可以开发利用的优质可再生天然纤维材料,具有巨大的市场价值和环境效益。
我国每年产生废塑料约为600~800万吨,再生利用率不足30%,“白色”污染由此而起,。利用废塑料和椰子树枝叶,生产木塑复合材料,“化腐朽为神奇”。产品“从摇篮到坟墓”的各个阶段——即从原材料提取、产品加工,到产品利用及其利用后的处理和处置——均符合清洁生产的理念,符合可持续发展政策,利国利民,造福子孙。
发明内容
本发明的目的是提供了一种椰子树枝叶纤维基木塑复合材料的制备方法,该方法不仅可解决废弃椰子树枝叶所引起的市容和交通安全问题,而且所生产的产品具有防水、防蛀、防腐、木质感强、表面硬度高、耐磨性强、使用寿命长、不含甲醛等诸多优点,是一种节材代木的典型环保材料,可应用于室内外装饰场合,尤其适用于构造户外亲水景观,具有巨大的经济效益和环保效益。
为了实现上述目的,本发明的技术方案为:提供一种椰子树枝叶纤维基木塑复合材料的制备方法,包括如下步骤:
(1)原料制备:废弃PE瓶盖经破碎和干燥等工序,得到废弃PE颗粒;椰子树枝叶经裁截、干燥脱水、锤碎、研磨等工序,得到椰子树枝叶纤维。
(2)高混:将步骤(1)所述椰子树枝叶纤维、废弃PE颗粒及助剂按一定比例在高速搅拌机中混合均匀,得到改性的高混料。
(3)造粒:将步骤(2)所述高混料在造粒机中进行造粒,得到造粒料。
(4)挤出:将步骤(3)所述造粒料在挤出机中挤出,得到木塑复合材料。
(5)后期表面加工:将步骤(4)所述木塑复合材料表面进行打磨砂抛光或拉毛、热印木纹后处理得到成品。
作为优先:上述的椰子树枝叶纤维,是自然脱落的椰子树枝叶经裁截、干燥脱水、锤碎、研磨等工序而制得的粒径为50~100目的椰子树枝叶纤维。
作为优先:上述的废弃PE颗粒,是将废弃的PE瓶盖经破碎、干燥等工序而制得的粒径为40~100目的碎料。
作为优先:上述的高混,是将椰子树枝叶纤维、废弃PE颗粒和助剂按一定的重量配比,在高速搅拌机中混合均匀。
作为优先:上述的助剂包括增溶剂1.0%~2.5%、偶联剂1.2%~2.2%、润滑剂1.2%~2.4%、着色剂1.1%~2.1%、防菌剂1.2%~2.5%、紫外线稳定剂1.2%~2.3%、分散剂1.1%~2.0%、抗氧剂1.0%~2.0%、交联剂1.0%~2.0%。
作为优先:上述的润滑剂包括聚乙烯蜡、硬脂酸、硬脂酸锌、EBS。
作为优先:上述的増溶剂为马来酸酐接枝PP。
作为优先:上述的一定重量比是指,在高混料中,按重量比计,椰子树枝叶纤维约占55~75%,PE碎料颗粒约占15~25%,助剂约占10~20%。
作为优先:上述的造粒,是将上述的高混料采用锥型双螺杆造粒机进行造粒。
作为优先:上述的挤出,是采用单螺杆挤出机挤出木塑复合材料。挤出机全程温度≤150℃~180℃,其中:一区150℃~170℃,二区153℃~173℃、三区160℃~180℃、四区156℃~175℃、五区150℃~170℃、六区145℃~165℃、七区140℃~160℃、合流芯区130℃~157℃、模头130℃~160℃。
作为优先:上述的后期表面加工,是将上述的挤出木塑复合材料进行冷却截断,并对板材表面进行磨砂抛光或拉毛、热印木纹等后处理。
本发明的有益效果:依据GB/T24508—2009《木塑地板》进行检验,证明椰子树枝叶纤维的重量含量为55~75%时,椰子树枝叶纤维基木塑复合材料物理性能和力学性能如强度、韧性、尺寸稳定性、膨胀系数等指标达到甚至好于国家标准。
附图说明
图1为本发明椰子树枝叶纤维基木塑复合材料制备方法的工艺流程图。
具体实施方式
实施例1
椰子树枝叶纤维基木塑复合板材的制作步骤:
(1)原料制备:将废弃PE瓶盖破碎成40~100目的颗粒并干燥后得到废弃PE颗粒;自然脱落的椰子树枝叶经裁截、干燥脱水、锤碎、研磨等制备粒径为50~100目的椰子树枝叶纤维。
(2)高混:将步骤(1)所述椰子树枝叶纤维和废弃PE颗粒及助剂按重量百分比为55:25:20的比例,在高速搅拌机中混合均匀,得到高混料。助剂包括增溶剂2.5%、偶联剂2.2%、润滑剂2.4%、着色剂2.1%、防菌剂2.5%、紫外线稳定剂2.3%、分散剂2.0%、抗氧剂2.0%、交联剂2.0%。
(3)造粒:采用锥型双螺杆造粒机,对步骤(2)所述的高混料进行造粒。
(4)将造粒得到的粒子输入锥双螺杆挤出机挤出成型,冷却、截断;
(5)后期表面加工:对步骤(4)所述木塑复合板材表面进行打磨砂抛光或拉毛、热印木纹等处理,得到椰子树枝叶纤维基木塑复合板材。
实施例2
椰子树枝叶纤维基木塑复合板材的制作步骤:
(1)原料制备:将废弃PE瓶盖破碎成40~100目的颗粒并干燥后得到废弃PE颗粒;自然脱落的椰子树枝叶经裁截、干燥脱水、锤碎、研磨等制备粒径为50~100目的椰子树枝叶纤维。
(2)高混:将步骤(1)所述椰子树枝叶纤维和废弃PE颗粒及助剂按重量百分比为75:15:10的比例,在高速搅拌机中混合均匀,得到高混料。助剂包括增溶剂1.0%、偶联剂1.2%、润滑剂1.2%、着色剂1.1%、防菌剂1.2%、紫外线稳定剂1.2%、分散剂1.1%、抗氧剂1.0%、交联剂1.0%。
(3)造粒:采用锥型双螺杆造粒机,对步骤(2)所述的高混料进行造粒。
(4)将造粒得到的粒子输入锥双螺杆挤出机挤出成型,冷却、截断;
(5)后期表面加工:对步骤(4)所述木塑复合板材表面进行打磨砂抛光或拉毛、热印木纹等处理,得到椰子树枝叶纤维基木塑复合板材。
实施例3
椰子树枝叶纤维基木塑复合板材的制作步骤:
(1)原料制备:将废弃PE瓶盖破碎成40~100目的颗粒并干燥后得到废弃PE颗粒;自然脱落的椰子树枝叶经裁截、干燥脱水、锤碎、研磨等制备粒径为50~100目的椰子树枝叶纤维。
(2)高混:将步骤(1)所述椰子树枝叶纤维55.01%~74.99%和废弃PE颗粒15.01%~24.99%及助剂10.01%~19.99%的比例,在高速搅拌机中混合均匀,得到高混料。助剂包括增溶剂1.01%~2.49%、偶联剂1.21%~2.19%、润滑剂1.21%~2.39%、着色剂1.11%~2.09%、防菌剂1.21%~2.49%、紫外线稳定剂1.21%~2.29%、分散剂1.11%~1.99、抗氧剂1.01%~1.99%、交联剂1.01%~1.99%,
(3)造粒:采用锥型双螺杆造粒机,对步骤(2)所述的高混料进行造粒。
(4)将造粒得到的粒子输入锥双螺杆挤出机挤出成型,冷却、截断;
(5)后期表面加工:对步骤(4)所述木塑复合板材表面进行打磨砂抛光或拉毛、热印木纹等处理,得到椰子树枝叶纤维基木塑复合板材。
依据GB/T24508—2009《木塑地板》对上述椰子树枝叶纤维基木塑复合板材进行检验,结果数据如表1所示。
表1 本发明椰子树枝叶纤维基木塑复合板材性能检测数据
本发明针对目前自然脱落椰树枝叶难以利用的现状,提出采用挤出法制备椰子树枝叶纤维基木塑复合材料,为大量椰子树枝叶及废弃塑料提供一条有效的综合利用途径,产品不仅具有优良的物理性能、力学性能、耐候性能,而且从原材料提取、产品加工,到产品利用及其利用后的处理和处置,均符合清洁生产的理念,符合可持续发展政策,具有良好的经济效益和环保效益。
本发明开发利用椰子树枝叶资源,制备椰子树枝叶纤维,再配以特殊的工艺配方和生产加工工艺,生产环保型装饰材料;
实验证明,椰子树枝叶纤维含量在55%~75%的PE复合型材,强度、韧性、尺寸稳定性和膨胀系数指标均符合国家标准甚至比国家标准还要好。
以上所揭露的仅为本发明的较佳实施例而已,当然不能以此来限定本发明之权利范围,因此依本发明权利要求所作的等同变化,仍属于本发明所涵盖的范围。

Claims (3)

1.一种椰子树枝叶纤维基木塑复合材料的制备方法,其特征在于:椰子树枝叶纤维55%~75%、废弃PE碎料15%~25%和其他助剂10%~20%为原材料,经高混、造粒、挤出及后期表面加工工序,制备环保型椰子树枝叶纤维基木塑复合材料;
所述椰子树枝叶纤维:收集自然脱落的椰子树枝叶,经裁截、干燥脱水、锤碎、研磨工序制备粒径为50~100目;
所述废弃PE碎料:将废弃PE瓶盖制备成粒径为40~100目;
其他助剂包括增溶剂1.0%~2.5%、偶联剂1.2%~2.2%、润滑剂1.2%~2.4%、着色剂1.1%~2.1%、防菌剂1.2%~2.5%、紫外线稳定剂1.2%~2.3%、分散剂1.1%~2.0%、抗氧剂1.0%~2.0%、交联剂1.0%~2.0%;
所述的润滑剂为聚乙烯蜡、硬脂酸、硬脂酸锌、EBS;
所述的増溶剂为马来酸酐接枝PP;
所述的高混,是将椰子树枝叶纤维、废弃PE碎料及其他助剂在高速搅拌机中混合均匀,得到高混料;所述的造粒是将高混料在锥型双螺杆造粒机中进行造粒;
所述挤出是采用单螺杆挤出机进行挤出,挤出机的全程温度150℃~180℃,其中:一区150℃~170℃,二区153℃~173℃、三区160℃~180℃、四区156℃~175℃、五区150℃~170℃、六区145℃~165℃、七区140℃~160℃、合流芯区130℃~157℃、模头130℃~160℃。
2.如权利要求1所述的椰子树枝叶纤维基木塑复合材料的制备方法,其特征在于:所述后期表面加工是将挤出的木塑复合材料进行冷却截断,并对板材表面进行磨砂抛光或拉毛、热印木纹后处理。
3.一种如权利要求1所述制备方法制得的椰子树枝叶纤维基木塑复合材料。
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