CN103951911B - 一种耐热抗弯的复合塑料及其制备方法 - Google Patents

一种耐热抗弯的复合塑料及其制备方法 Download PDF

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CN103951911B
CN103951911B CN201410166291.1A CN201410166291A CN103951911B CN 103951911 B CN103951911 B CN 103951911B CN 201410166291 A CN201410166291 A CN 201410166291A CN 103951911 B CN103951911 B CN 103951911B
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composite plastic
heat
bending resistance
resisting bending
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CN103951911A (zh
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戴晓宸
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Dongguan Guangchang Plastic Product Co., Ltd.
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SUZHOU YUFAN NEW MATERIAL TECHNOLOGY Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—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
    • 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
    • B29C48/395—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
    • 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
    • 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
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • 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
    • B29C2948/92904—Die; Nozzle zone

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

一种耐热抗弯的复合塑料及其制备方法，耐热抗弯的复合塑料由以下成分按照重量比制成：聚氯乙烯为13-18份、丙基纤维素为12-15份、聚羟基丁酸酯为14-18份、聚乳酸为3-4份、聚三氟氯乙烯为7-12份、脲醛树脂为4-7份。将耐热抗弯的复合塑料的成分通过混合、双螺杆挤压等工艺制备得到复合塑料，制备的复合塑料具有较高的热变形温度和良好的抗弯强度。

Description

一种耐热抗弯的复合塑料及其制备方法
技术领域
本发明属于高分子材料领域，涉及一种复合塑料及其制备方法，尤其涉及一种耐热抗弯的复合塑料及其制备方法。
背景技术
塑料的应用较为广泛，可以在环境中随处可见。塑料分为热固性塑料和热塑性塑料，热固性塑料在成型后为固定形态，受热后仍然为固定形态。热塑料塑料在成型后冷却至室温为固定形态，但是当热塑性塑料受热后，热塑料塑料仍然会融化，进而成为熔融物。
常规的塑料的耐热性能较差，在其受到高温加热后，就会产生形态变化，影响塑料制品的正常使用。同时也制约着复合塑料的进一步深入应用，常规的塑料弯曲强度较低，在受到外力后容易发生弯曲的现象，也影响着复合塑料的用途。
发明内容
要解决的技术问题：常规的塑料其耐热性能较差、弯曲强度较低，严重制约着塑料制品的使用的问题。
技术方案：一种耐热抗弯的复合塑料及其制备方法，耐热抗弯的复合塑料由以下成分按照重量比制成：聚氯乙烯为13-18份、丙基纤维素为12-15份、聚羟基丁酸酯为14-18份、聚乳酸为3-4份、聚三氟氯乙烯为7-12份、脲醛树脂为4-7份。
一种耐热抗弯的复合塑料的制备方法，该方法包括以下步骤：(1)取聚氯乙烯为13-18份、丙基纤维素为12-15份、聚羟基丁酸酯为14-18份、聚乳酸为3-4份、聚三氟氯乙烯为7-12份、脲醛树脂为4-7份，将聚氯乙烯、丙基纤维素、聚羟基丁酸酯、聚乳酸、聚三氟氯乙烯、脲醛树脂在温度为90℃下进行混合，混合后进行搅拌，搅拌时间为30min；(2)将步骤(1)中混合均匀的混合料加入到双螺杆挤压机中，在双螺杆挤压机中进行熔融挤压，挤压温度为180℃，挤压结束后将混合料进行冷却，首先冷却至150℃，再冷却至130℃，最后再冷却至100℃，切粒后制备得到耐热抗弯的复合塑料。
有益效果：本发明的制备方法制备得到的复合塑料具有良好的耐热性能和较高的弯曲强度，可耐130-150℃下加热24h无形态变化，弯曲强度为45.4MPa至46.2MPa，可以有效的满足不同环境下塑料制品的使用。
具体实施方式
以下结合实施例对本发明作进一步的说明。
实施例1
一种耐热抗弯的复合塑料的制备方法，该方法包括以下步骤：(1)取聚氯乙烯为13kg、丙基纤维素为12kg、聚羟基丁酸酯为18kg、聚乳酸为4kg、聚三氟氯乙烯为12kg、脲醛树脂为4kg，将聚氯乙烯、丙基纤维素、聚羟基丁酸酯、聚乳酸、聚三氟氯乙烯、脲醛树脂在温度为90℃下进行混合，混合后进行搅拌，搅拌时间为30min；(2)将步骤(1)中混合均匀的混合料加入到双螺杆挤压机中，在双螺杆挤压机中进行熔融挤压，挤压温度为180℃，挤压结束后将混合料进行冷却，首先冷却至150℃，再冷却至130℃，最后再冷却至100℃，切粒后制备得到耐热抗弯的复合塑料。
实施例2
一种耐热抗弯的复合塑料的制备方法，该方法包括以下步骤：(1)取聚氯乙烯为15kg、丙基纤维素为13kg、聚羟基丁酸酯为14kg、聚乳酸为3kg、聚三氟氯乙烯为7kg、脲醛树脂为6kg，将聚氯乙烯、丙基纤维素、聚羟基丁酸酯、聚乳酸、聚三氟氯乙烯、脲醛树脂在温度为90℃下进行混合，混合后进行搅拌，搅拌时间为30min；(2)将步骤(1)中混合均匀的混合料加入到双螺杆挤压机中，在双螺杆挤压机中进行熔融挤压，挤压温度为180℃，挤压结束后将混合料进行冷却，首先冷却至150℃，再冷却至130℃，最后再冷却至100℃，切粒后制备得到耐热抗弯的复合塑料。
实施例3
一种耐热抗弯的复合塑料的制备方法，该方法包括以下步骤：(1)取聚氯乙烯为18kg、丙基纤维素为15kg、聚羟基丁酸酯为16kg、聚乳酸为4kg、聚三氟氯乙烯为9kg、脲醛树脂为7kg，将聚氯乙烯、丙基纤维素、聚羟基丁酸酯、聚乳酸、聚三氟氯乙烯、脲醛树脂在温度为90℃下进行混合，混合后进行搅拌，搅拌时间为30min；(2)将步骤(1)中混合均匀的混合料加入到双螺杆挤压机中，在双螺杆挤压机中进行熔融挤压，挤压温度为180℃，挤压结束后将混合料进行冷却，首先冷却至150℃，再冷却至130℃，最后再冷却至100℃，
切粒后制备得到耐热抗弯的复合塑料。
将实施例1、实施例2、实施例3制备得到的复合塑料分别放置在130℃、140℃、150℃下加热24h，观察实施例1、实施例2、实施例3的复合塑料的形态变化。另外再测定实施例1、实施例2、实施例3的复合塑料的弯曲强度，测定标准为ASTMD790，结果如下。
从表中可以看出，通过本发明的方法制备得到的复合塑料具备了优异的耐热性能和较高的弯曲强度，可以满足不同的情况下复合塑料的使用，具有广泛的应用空间。

Claims (5)

1.一种耐热抗弯的复合塑料，其特征在于耐热抗弯的复合塑料由以下成分按照重量比制成：聚氯乙烯为13-18份、丙基纤维素为12-15份、聚羟基丁酸酯为14-18份、聚乳酸为3-4份、聚三氟氯乙烯为7-12份、脲醛树脂为4-7份。
2.一种耐热抗弯的复合塑料的制备方法，其特征在于该方法包括以下步骤：(1)取聚氯乙烯为13-18份、丙基纤维素为12-15份、聚羟基丁酸酯为14-18份、聚乳酸为3-4份、聚三氟氯乙烯为7-12份、脲醛树脂为4-7份，将聚氯乙烯、丙基纤维素、聚羟基丁酸酯、聚乳酸、聚三氟氯乙烯、脲醛树脂在温度为90℃下进行混合，混合后进行搅拌，搅拌时间为30min；(2)将步骤(1)中混合均匀的混合料加入到双螺杆挤压机中，在双螺杆挤压机中进行熔融挤压，挤压温度为180℃，挤压结束后将混合料进行冷却，首先冷却至150℃，再冷却至130℃，最后再冷却至100℃，切粒后制备得到耐热抗弯的复合塑料。
3.根据权利要求2所述的一种耐热抗弯的复合塑料的制备方法，其特征在于制备过程中加入的丙基纤维素为15份。
4.根据权利要求2所述的一种耐热抗弯的复合塑料的制备方法，其特征在于制备过程中加入的聚氯乙烯为18份。
5.根据权利要求2所述的一种耐热抗弯的复合塑料的制备方法，其特征在于制备过程中加入的脲醛树脂为4份。
CN201410166291.1A 2014-04-23 2014-04-23 一种耐热抗弯的复合塑料及其制备方法 Expired - Fee Related CN103951911B (zh)

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