CN103772945A - 一种聚碳酸酯复合塑料及其制备方法 - Google Patents
一种聚碳酸酯复合塑料及其制备方法 Download PDFInfo
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- B29C48/40—Means 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
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- 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
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- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C2948/00—Indexing scheme relating to extrusion moulding
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- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- 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
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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
- 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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Abstract
本发明涉及一种聚碳酸酯复合塑料及其制备方法,聚碳酸酯复合塑料由以下成分按照重量比组成:聚碳酸酯为22~24份、甲基丙烯酸癸酯为10~15份、甲基纤维素为7~10份、聚酚氧树脂为3~5份、聚砜树脂为2~6份、硬脂酸钾为2~5份、矿物油为5~8份。聚碳酸酯复合塑料制备步骤包括高温熔融、搅拌混合、双螺杆挤压造粒等。制备的聚碳酸酯复合塑料克服了常规聚碳酸酯塑料拉伸强度较低、抗断裂强度较低的缺陷,可用于手机、电脑等设备中。
Description
技术领域
本发明涉及一种复合塑料及其制备方法,特别是涉及一种聚碳酸酯复合塑料及其制备方法。
背景技术
聚碳酸酯为一种有机高分子材料,其分类较多,有脂肪族、芳香族等。聚碳酸酯的拉伸强度和抗断裂性能较差,限制了聚碳酸酯作为工程塑料的广泛使用。聚碳酸酯在塑料容器、通讯器材、电子行业中有非常广的应用。聚碳酸酯通过基团改性和共混改性,可以一定程度上提高聚碳酸酯复合材料的拉伸强度和抗断裂强度。
通常将聚丙烯、聚苯乙烯、聚甲醛等进行混合后,聚碳酸酯的性能提升并不非常明显,还是影响着聚碳酸酯塑料的应用。因此,需要将新型的树脂材料或高分子材料与聚碳酸酯进行共混处理来提高其性能。
发明内容
要解决的技术问题:常规的聚碳酸酯塑料的拉伸强度较低、断裂伸长率较低,降低了聚碳酸酯复合塑料的使用空间。
技术方案:本发明公开了一种聚碳酸酯复合塑料及其制备方法,聚碳酸酯复合塑料由以下成分按照重量比组成:聚碳酸酯为22~24份、甲基丙烯酸癸酯为10~15份、甲基纤维素为7~10份、聚酚氧树脂为3~5份、聚砜树脂为2~6份、硬脂酸钾为2~5份、矿物油为5~8份。
一种聚碳酸酯复合塑料的制备方法,制备方法包括如下步骤:(1)取聚碳酸酯为22~24份、甲基丙烯酸癸酯为10~15份、甲基纤维素为7~10份,将以上成分放入搅拌罐中,将搅拌罐温度调节至130℃,高温熔融混合均匀;(2)将搅拌罐温度升至165℃,再取聚酚氧树脂为3~5份、聚砜树脂为2~6份、硬脂酸钾为2~5份、矿物油为5~8份,加入搅拌罐中,搅拌均匀;(3)将高温熔融的聚碳酸酯混合物用双螺杆挤压机进行挤压造粒,所述的双螺杆挤压机转速为110rpm~120rpm,双螺杆挤压机的长径比为30:1,挤压区段温度为:第一段为180~200℃,第二段为200~220℃,第三段为220~230℃;(4)将复合塑料材料切粒,得聚碳酸酯复合塑料。
其中,所述的双螺杆挤压机转速优选为120rpm。
双螺杆挤压时第二段温度优选为220℃。
共混过程中,加入的甲基丙烯酸癸酯优选为15份。
有益效果:制备得到的聚碳酸酯复合塑料具有较高的拉伸强度和断裂伸长率,拉伸强度测试标准为GB/T1040-1992,聚碳酸酯复合塑料的拉伸强度为51~54MPa,其断裂伸长率测定标准为ASTMD638,聚碳酸酯复合塑料的断裂伸长率为55%至59%。
具体实施方式
实施例1
一种聚碳酸酯复合塑料的制备方法,制备方法包括如下步骤:(1)取聚碳酸酯为23kg、甲基丙烯酸癸酯为10kg、甲基纤维素为10kg,将以上成分放入搅拌罐中,将搅拌罐温度调节至130℃,高温熔融混合均匀;(2)将搅拌罐温度升至165℃,再取聚酚氧树脂为3kg、聚砜树脂为2kg、硬脂酸钾为2kg、矿物油为5kg,加入搅拌罐中,搅拌均匀;(3)将高温熔融的聚碳酸酯混合物用双螺杆挤压机进行挤压造粒,所述的双螺杆挤压机转速为120rpm,双螺杆挤压机的长径比为30:1,挤压区段温度为:第一段为200℃,第二段为220℃,第三段为225℃;(4)将复合塑料材料切粒,得聚碳酸酯复合塑料。
实施例2
一种聚碳酸酯复合塑料的制备方法,制备方法包括如下步骤:(1)取聚碳酸酯为24kg、甲基丙烯酸癸酯为12kg、甲基纤维素为7kg,将以上成分放入搅拌罐中,将搅拌罐温度调节至130℃,高温熔融混合均匀;(2)将搅拌罐温度升至165℃,再取聚酚氧树脂为5kg、聚砜树脂为4kg、硬脂酸钾为4kg、矿物油为8kg,加入搅拌罐中,搅拌均匀;(3)将高温熔融的聚碳酸酯混合物用双螺杆挤压机进行挤压造粒,所述的双螺杆挤压机转速为110rpm,双螺杆挤压机的长径比为30:1,挤压区段温度为:第一段为180℃,第二段为210℃,第三段为230℃;(4)将复合塑料材料切粒,得聚碳酸酯复合塑料。
实施例3
一种聚碳酸酯复合塑料的制备方法,制备方法包括如下步骤:(1)取聚碳酸酯为22kg、甲基丙烯酸癸酯为15kg、甲基纤维素为8kg,将以上成分放入搅拌罐中,将搅拌罐温度调节至130℃,高温熔融混合均匀;(2)将搅拌罐温度升至165℃,再取聚酚氧树脂为4kg、聚砜树脂为6kg、硬脂酸钾为5kg、矿物油为7kg,加入搅拌罐中,搅拌均匀;(3)将高温熔融的聚碳酸酯混合物用双螺杆挤压机进行挤压造粒,所述的双螺杆挤压机转速为115rpm,双螺杆挤压机的长径比为30:1,挤压区段温度为:第一段为190℃,第二段为200℃,第三段为220℃;(4)将复合塑料材料切粒,得聚碳酸酯复合塑料。
实施例1、实施例2、实施例3的聚碳酸酯复合塑料的拉伸强度和断裂伸长率数值如下,测定方法为GB/T1040-1992和ASTMD638,结果如下。
实施例1 | 实施例2 | 实施例3 | |
拉伸强度(MPa) | 52 | 54 | 51 |
断裂伸长率 | 58% | 59% | 55% |
制备得到的聚碳酸酯复合塑料的拉伸强度可达到54MPa,其断裂伸长率最大可达59%,具有优良的拉伸性能和抗断裂性能,可以扩大聚碳酸酯工程塑料的使用领域。
Claims (5)
1.一种聚碳酸酯复合塑料,其特征在于聚碳酸酯复合塑料由以下成分按照重量比组成:聚碳酸酯为22~24份、甲基丙烯酸癸酯为10~15份、甲基纤维素为7~10份、聚酚氧树脂为3~5份、聚砜树脂为2~6份、硬脂酸钾为2~5份、矿物油为5~8份。
2. 根据权利要求1所述的一种聚碳酸酯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)取聚碳酸酯为22~24份、甲基丙烯酸癸酯为10~15份、甲基纤维素为7~10份,将以上成分放入搅拌罐中,将搅拌罐温度调节至130℃,高温熔融混合均匀;(2)将搅拌罐温度升至165℃,再取聚酚氧树脂为3~5份、聚砜树脂为2~6份、硬脂酸钾为2~5份、矿物油为5~8份,加入搅拌罐中,搅拌均匀;(3)将高温熔融的聚碳酸酯混合物用双螺杆挤压机进行挤压造粒,所述的双螺杆挤压机转速为110rpm~120rpm,双螺杆挤压机的长径比为30:1,挤压区段温度为:第一段为180~200℃,第二段为200~220℃,第三段为220~230℃;(4)将复合塑料材料切粒,得聚碳酸酯复合塑料。
3.根据权利要求2所述的一种聚碳酸酯复合塑料的制备方法,其特征在于所述的双螺杆挤压机转速为120rpm。
4.根据权利要求2所述的一种聚碳酸酯复合塑料的制备方法,其特征在于双螺杆挤压时第二段温度为220℃。
5.根据权利要求2所述的一种聚碳酸酯复合塑料的制备方法,其特征在于加入的甲基丙烯酸癸酯为15份。
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Cited By (4)
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CN104118109A (zh) * | 2014-06-26 | 2014-10-29 | 苏州市盛百威包装设备有限公司 | 一种高分子包装材料的制备方法 |
CN108864675A (zh) * | 2017-05-11 | 2018-11-23 | 上海奥塞尔材料科技有限公司 | 一种聚碳酸酯改性料及其制备方法 |
TWI654253B (zh) | 2018-05-15 | 2019-03-21 | 科展材料科技股份有限公司 | 具有聚碳酸酯及聚碸的聚合物摻合物及其複合材料 |
CN115449206A (zh) * | 2022-09-19 | 2022-12-09 | 碳中和环保科技(广州)有限公司 | 一种由废旧塑料制备的改性塑料 |
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CN1367807A (zh) * | 1999-08-09 | 2002-09-04 | 美国拜尔公司 | 阻燃聚碳酸酯组合物 |
CN101040004A (zh) * | 2004-10-14 | 2007-09-19 | 旭化成化学株式会社 | 树脂组合物 |
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CN1367807A (zh) * | 1999-08-09 | 2002-09-04 | 美国拜尔公司 | 阻燃聚碳酸酯组合物 |
CN101040004A (zh) * | 2004-10-14 | 2007-09-19 | 旭化成化学株式会社 | 树脂组合物 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104118109A (zh) * | 2014-06-26 | 2014-10-29 | 苏州市盛百威包装设备有限公司 | 一种高分子包装材料的制备方法 |
CN104118109B (zh) * | 2014-06-26 | 2016-06-29 | 福建南王包装有限公司 | 一种高分子包装材料的制备方法 |
CN108864675A (zh) * | 2017-05-11 | 2018-11-23 | 上海奥塞尔材料科技有限公司 | 一种聚碳酸酯改性料及其制备方法 |
TWI654253B (zh) | 2018-05-15 | 2019-03-21 | 科展材料科技股份有限公司 | 具有聚碳酸酯及聚碸的聚合物摻合物及其複合材料 |
CN115449206A (zh) * | 2022-09-19 | 2022-12-09 | 碳中和环保科技(广州)有限公司 | 一种由废旧塑料制备的改性塑料 |
CN115449206B (zh) * | 2022-09-19 | 2023-07-21 | 碳中和环保科技(广州)有限公司 | 一种由废旧塑料制备的改性塑料 |
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