CN103772900A - 一种聚甲醛复合塑料及其制备方法 - Google Patents

一种聚甲醛复合塑料及其制备方法 Download PDF

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CN103772900A
CN103772900A CN201410033132.4A CN201410033132A CN103772900A CN 103772900 A CN103772900 A CN 103772900A CN 201410033132 A CN201410033132 A CN 201410033132A CN 103772900 A CN103772900 A CN 103772900A
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composite plastic
polyoxymethylene
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screw extruder
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CN103772900B (zh
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石磊
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Guangdong Aierke Plastic Technology Co ltd
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NANTONG RED STON TECHNOLOGY DEVELOPMENT Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/875—Thermal 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92266—Mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92485—Start-up, shut-down or parameter setting phase; Emergency shut-down; Material change; Test or laboratory equipment or studies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885—Screw or gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

本发明涉及一种聚甲醛复合塑料及其制备方法，聚甲醛复合塑料由以下成分按照重量比组成：聚甲醛为17～19份、聚丁二烯环氧树脂为8～16份、尼龙9为4～5份、邻苯二甲酸二异壬酯为4～6份、玻璃纤维为7～9份、甘油为6～7份、硬脂酸钙为3～4份。本发明的聚甲醛复合塑料的制备方法为高温下进行熔融、搅拌桨进行搅拌混合、双螺杆挤压机进行挤压、自然冷却等程序。制备的聚甲醛复合塑料耐拉伸和抗冲击的性能较高，可以满足工程塑料对耐拉伸和抗冲击要求较高的需求。

Description

一种聚甲醛复合塑料及其制备方法
技术领域
本发明涉及一种复合塑料及其制备方法，特别是涉及一种聚甲醛复合塑料及其制备方法。
背景技术
工程塑料种类较多，主要有聚碳酸酯塑料、聚甲醛塑料、聚酰胺塑料、聚酯塑料、聚苯醚塑料等。其中，聚甲醛塑料的使用也较为频繁，由于其较高的硬度，被广泛的用于汽车、仪表、建材、医疗器械等领域中。
    但是由于聚甲醛塑料的硬度较高，通常聚甲醛塑料的拉伸性能较差，由于其较弱的拉伸性能，在将聚甲醛应用到一些对弹性和韧性要求较高的领域中时，就会影响了最终产品的拉伸性能。因此需要对聚甲醛塑料进行再次开发，提升聚甲醛塑料的拉伸性能，满足不同工程塑料行业的需求。
发明内容
要解决的技术问题：常规的聚甲醛塑料的拉伸强度较低、抗冲击性能较低，限制了聚甲醛复合塑料的使用。
技术方案：本发明公开了一种聚甲醛复合塑料及其制备方法，聚甲醛复合塑料由以下成分按照重量比组成：聚甲醛为17～19份、聚丁二烯环氧树脂为8～16份、尼龙9为4～5份、邻苯二甲酸二异壬酯为4～6份、玻璃纤维为7～9份、甘油为6～7份、硬脂酸钙为3～4份。
一种聚甲醛复合塑料的制备方法，制备方法包括如下步骤：（1）打开高温反应釜，将反应釜温度设定为135℃；（2）向高温反应釜中加入聚甲醛为17～19份、聚丁二烯环氧树脂为8～16份、尼龙9为4～5份、邻苯二甲酸二异壬酯为4～6份、玻璃纤维为7～9份、甘油为6～7份、硬脂酸钙为3～4份，高温下用搅拌桨将物料混匀；（3）将混合均匀的聚甲醛混合物用双螺杆挤压机进行挤压，双螺杆挤压机转速为75rpm～90rpm，双螺杆挤压机的长径比为35:1，挤压时温度为：第一区段为160～175℃，第二段为175～190℃，第三段为190～205℃，第四段为205～220℃；（4）挤压后将复合塑料自然冷却，得聚甲醛复合塑料。
其中，制备时加入的聚甲醛优选为18～19份。
制备时加入的玻璃纤维优选为9份。
双螺杆挤压机转速优选为90rpm。
有益效果：由本发明方法制备得到的聚甲醛复合塑料具有优良的拉伸性能和抗冲击性能，拉伸强度测试标准为GB/T1040-1992，聚甲醛复合塑料的拉伸强度为92～95MPa，聚甲醛塑料的抗冲击性能测定标准为ASTMD256-97，聚甲醛复合塑料的抗冲击值为366～374J/M，可以很好的满足工程塑料的需要。
具体实施方式
实施例1
制备方法包括如下步骤：（1）打开高温反应釜，将反应釜温度设定为135℃；（2）向高温反应釜中加入聚甲醛为17kg、聚丁二烯环氧树脂为8kg、尼龙9为5kg、邻苯二甲酸二异壬酯为6kg、玻璃纤维为8kg、甘油为7kg、硬脂酸钙为3kg，高温下用搅拌桨将物料混匀；（3）将混合均匀的聚甲醛混合物用双螺杆挤压机进行挤压，双螺杆挤压机转速为75rpm，双螺杆挤压机的长径比为35:1，挤压时温度为：第一区段为175℃，第二段为180℃，第三段为205℃，第四段为220℃；（4）挤压后将复合塑料自然冷却，得聚甲醛复合塑料。
实施例2
制备方法包括如下步骤：（1）打开高温反应釜，将反应釜温度设定为135℃；（2）向高温反应釜中加入聚甲醛为18kg、聚丁二烯环氧树脂为13kg、尼龙9为4kg、邻苯二甲酸二异壬酯为4kg、玻璃纤维为7kg、甘油为6kg、硬脂酸钙为3kg，高温下用搅拌桨将物料混匀；（3）将混合均匀的聚甲醛混合物用双螺杆挤压机进行挤压，双螺杆挤压机转速为85rpm，双螺杆挤压机的长径比为35:1，挤压时温度为：第一区段为165℃，第二段为190℃，第三段为200℃，第四段为210℃；（4）挤压后将复合塑料自然冷却，得聚甲醛复合塑料。
实施例3
制备方法包括如下步骤：（1）打开高温反应釜，将反应釜温度设定为135℃；（2）向高温反应釜中加入聚甲醛为19kg、聚丁二烯环氧树脂为16kg、尼龙9为4kg、邻苯二甲酸二异壬酯为5kg、玻璃纤维为9kg、甘油为7kg、硬脂酸钙为4kg，高温下用搅拌桨将物料混匀；（3）将混合均匀的聚甲醛混合物用双螺杆挤压机进行挤压，双螺杆挤压机转速为90rpm，双螺杆挤压机的长径比为35:1，挤压时温度为：第一区段为160℃，第二段为175℃，第三段为190℃，第四段为205℃；（4）挤压后将复合塑料自然冷却，得聚甲醛复合塑料。
将实施例1、实施例2、实施例3的聚甲醛复合塑料的拉伸强度和抗冲击值进行测定，测定标准为GB/T1040-1992和ASTMD256-97，结果如下。
 
  实施例1 实施例2 实施例3
拉伸强度（MPa） 93 95 92
抗冲击值（J/M） 371 366 374
制备得到的聚甲醛复合塑料的拉伸强度为92至95MPa，抗冲击性能为366J/M至374J/M，具有良好的拉伸强度和抗冲击性能，可以适用于弹性部件及其他一些应用当中。

Claims (5)

1.一种聚甲醛复合塑料，其特征在于聚甲醛复合塑料由以下成分按照重量比组成：聚甲醛为17～19份、聚丁二烯环氧树脂为8～16份、尼龙9为4～5份、邻苯二甲酸二异壬酯为4～6份、玻璃纤维为7～9份、甘油为6～7份、硬脂酸钙为3～4份。
2. 根据权利要求1所述的一种聚甲醛复合塑料的制备方法，其特征在于制备方法包括如下步骤：（1）打开高温反应釜，将反应釜温度设定为135℃；（2）向高温反应釜中加入聚甲醛为17～19份、聚丁二烯环氧树脂为8～16份、尼龙9为4～5份、邻苯二甲酸二异壬酯为4～6份、玻璃纤维为7～9份、甘油为6～7份、硬脂酸钙为3～4份，高温下用搅拌桨将物料混匀；（3）将混合均匀的聚甲醛混合物用双螺杆挤压机进行挤压，双螺杆挤压机转速为75rpm～90rpm，双螺杆挤压机的长径比为35:1，挤压时温度为：第一区段为160～175℃，第二段为175～190℃，第三段为190～205℃，第四段为205～220℃；（4）挤压后将复合塑料自然冷却，得聚甲醛复合塑料。
3.根据权利要求2所述的一种聚甲醛复合塑料的制备方法，其特征在于制备时加入的聚甲醛为18～19份。
4.根据权利要求2所述的一种聚甲醛复合塑料的制备方法，其特征在于制备时加入的玻璃纤维为9份。
5.根据权利要求2所述的一种聚甲醛复合塑料的制备方法，其特征在于双螺杆挤压机转速为90rpm。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106633849A (zh) * 2016-11-16 2017-05-10 马鞍山市华能电力线路器材有限责任公司 一种抗静电塑料电力金具复合材料及其制作方法

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Publication number Priority date Publication date Assignee Title
CN101704985A (zh) * 2009-11-03 2010-05-12 苏州市科创聚合物有限公司 增韧pom及其制作工艺

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101704985A (zh) * 2009-11-03 2010-05-12 苏州市科创聚合物有限公司 增韧pom及其制作工艺

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106633849A (zh) * 2016-11-16 2017-05-10 马鞍山市华能电力线路器材有限责任公司 一种抗静电塑料电力金具复合材料及其制作方法

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