CN103772898B - 一种耐摩擦pom材料及其制备方法 - Google Patents
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- 239000000463 material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- -1 polypropylene Polymers 0.000 claims abstract description 12
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 10
- 239000004743 Polypropylene Substances 0.000 claims abstract description 9
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 9
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 9
- 239000008116 calcium stearate Substances 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000006185 dispersion Substances 0.000 claims abstract description 9
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920001155 polypropylene Polymers 0.000 claims abstract description 9
- 229920002635 polyurethane Polymers 0.000 claims abstract description 9
- 239000004814 polyurethane Substances 0.000 claims abstract description 9
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 8
- KWUZCAVKPCRJPO-UHFFFAOYSA-N n-ethyl-4-(6-methyl-1,3-benzothiazol-2-yl)aniline Chemical compound C1=CC(NCC)=CC=C1C1=NC2=CC=C(C)C=C2S1 KWUZCAVKPCRJPO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims abstract description 8
- 238000005469 granulation Methods 0.000 claims abstract description 6
- 230000003179 granulation Effects 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 229920006243 acrylic copolymer Polymers 0.000 claims description 8
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical class [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 229930040373 Paraformaldehyde Natural products 0.000 description 16
- 229920006324 polyoxymethylene Polymers 0.000 description 16
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229920006359 Fluoroplast Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012767 functional filler Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
- B29C48/03—Extrusion 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
- B29C48/04—Particle-shaped
-
- 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
- B29C48/78—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
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92619—Diameter or circumference
-
- 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
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
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- Processes Of Treating Macromolecular Substances (AREA)
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Abstract
本发明属于材料领域，公开了一种耐摩擦POM材料及其制备方法。该耐摩擦POM材料由包含以下重量份的组分制成：POM70-80份、热塑性聚氨酯弹性体20-30份、二氧化钛5-8份、马来酸酐接枝聚丙烯5-10份、分散剂5-10份、硬脂酸钙2-5份和硫代二丙酸双十八醇酯1-5份。各成分经过充分混合后，放入高速混合机中充分混合，用计量输送料装置，将混合后的物料送入双螺杆挤出机中，挤出，造粒，得到耐摩擦POM材料。本发明制得的POM材料具有良好的表面硬度、韧性和良好的相容性。
Description
技术领域
本发明属于材料领域，尤其涉及一种耐摩擦POM材料及其制备方法。
背景技术
聚甲醛（POM）有着良好的力学性能和耐磨性，因而被广泛应用于汽车、电子电气等行业。然而，聚甲醛因为其分子链结构规整造成的结晶性强，导致与其他聚合物同时应用时其相容性差，造成力学性能的下降，从而限制其在各领域的应用。
POM的耐磨性的改善主要通过加入其它树脂来提高其耐磨性，现有的技术有通过加入氟素树脂来降低材料的便面摩擦系数，然而其他树脂的加入虽然提高了POM的耐摩擦性，同时也导致相容性不佳的问题，易在成型品表面产生分层现象，从而导致力学性能不佳的的问题，因此，开发一种综合性能良好的改性POM确有必要。
发明内容
本发明目的在于提供了一种耐摩擦POM材料及其制备方法，制得POM材料具有良好的表面硬度、韧性和良好的相容性复合材料，各方面综合性能良好的POM材料。
本发明的目的可以通过以下技术方案实现：
一种耐摩擦POM材料，主要由包含以下重量份的组分制成:
POM 70-80份，
热塑性聚氨酯弹性体 20-30份，
二氧化钛 5-8份
马来酸酐接枝聚丙烯 5-10份，
分散剂 5-10份，
硬脂酸钙 2-5份，
硫代二丙酸双十八醇酯 1-5份。
所述分散剂为氧化聚乙烯蜡和丙烯酸共聚物钠离子盐的混合物。
所述分散剂中氧化聚乙烯蜡和丙烯酸共聚物钠离子盐的质量比为1:1。
所述的二氧化钛的粒径为30-35纳米。
一种耐摩擦POM材料的制备方法，该方法包括以下步骤：
（1）称取POM70-80份、热塑性聚氨酯弹性体20-30份、二氧化钛5-8份、马来酸酐接枝聚丙烯5-10份、分散剂5-10份、硬脂酸钙2-5份和硫代二丙酸双十八醇酯1-5份；
（2）将上述原料放入高速混合机中充分混合，用计量输送料装置，将混合后的物料送入双螺杆挤出机中，挤出，造粒；
所述双螺杆挤出机的各区段温度为：一区160-180℃，二区180-190℃，三区190-210℃，四区210-240℃。
有益效果：
本发明通过加入热塑性聚氨酯弹性体来改善POM材料的韧性、并加入了二氧化钛纳米颗粒和硬脂酸钙来增强POM材料的耐磨性能，同时在整个体系中为了改善因为功能性填料造成的相容性的分层问题，本发明添加了马来酸酐接枝聚丙烯、氧化聚乙烯蜡和丙烯酸共聚物离子盐的混合物来达到改善其相容性的效果。
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
（1）称取POM70kg热塑性聚氨酯弹性体25kg、粒径为30纳米的二氧化钛8kg、马来酸酐接枝聚丙烯5kg、氧化聚乙烯蜡5kg、丙烯酸共聚物钠离子盐5kg、硬脂酸钙2kg和硫代二丙酸双十八醇酯1kg；
（2）将上述原料放入高速混合机中充分混合，用计量输送料装置，将混合后的物料送入双螺杆挤出机中，挤出，造粒；
所述双螺杆挤出机的各区段温度为：一区160℃，二区180℃，三区190℃，四区210℃。
测得样品的铅笔硬度为2H。
实施例2
（1）称取POM80kg热塑性聚氨酯弹性体20kg、粒径为35纳米的二氧化钛5kg、马来酸酐接枝聚丙烯8kg、氧化聚乙烯蜡2.5kg、丙烯酸共聚物钠离子盐2.5kg、硬脂酸钙5kg和硫代二丙酸双十八醇酯2kg；
（2）将上述原料放入高速混合机中充分混合，用计量输送料装置，将混合后的物料送入双螺杆挤出机中，挤出，造粒；
所述双螺杆挤出机的各区段温度为：一区180℃，二区190℃，三区210℃，四区240℃。
测得样品的铅笔硬度为H。
实施例3
（1）称取POM75kg热塑性聚氨酯弹性体30kg、粒径为35纳米的二氧化钛7kg、马来酸酐接枝聚丙烯10kg、氧化聚乙烯蜡3kg、丙烯酸共聚物钠离子盐3kg、硬脂酸钙3kg和硫代二丙酸双十八醇酯5kg；
（2）将上述原料放入高速混合机中充分混合，用计量输送料装置，将混合后的物料送入双螺杆挤出机中，挤出，造粒；
所述双螺杆挤出机的各区段温度为：一区170℃，二区185℃，三区200℃，四区230℃。
测得样品的铅笔硬度为H+。
表1
| 测试标准 | 实施例1 | 实施例2 | 实施例3 | |
| 拉伸强度（MPa） | GB/T 1040 | 84 | 76 | 70 |
| 断裂延伸率(%) | ASTM D638 | 32 | 21 | 25 |
Claims (1)
1.一种耐摩擦POM材料，其主要由包含以下重量份的组分制成:
POM 70-80份，
热塑性聚氨酯弹性体 20-30份，
二氧化钛 5-8份
马来酸酐接枝聚丙烯 5-10份，
分散剂 5-10份，
硬脂酸钙 2-5份，
硫代二丙酸双十八醇酯 1-5份；
所述分散剂为氧化聚乙烯蜡和丙烯酸共聚物钠离子盐的混合物；
所述分散剂中氧化聚乙烯蜡和丙烯酸共聚物钠离子盐的质量比为1:1；所述的二氧化钛的粒径为30-35纳米；
所述的耐摩擦POM材料的制备方法包括以下步骤：
（1）称取POM70-80份、热塑性聚氨酯弹性体20-30份、二氧化钛5-8份、马来酸酐接枝聚丙烯5-10份、分散剂5-10份、硬脂酸钙2-5份和硫代二丙酸双十八醇酯1-5份；
（2）将上述原料放入高速混合机中充分混合，用计量输送料装置，将混合后的物料送入双螺杆挤出机中，挤出，造粒；
所述双螺杆挤出机的各区段温度为：一区160-180℃，二区180-190℃，三区190-210℃，四区210-240℃。
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| CN105237943B (zh) * | 2015-10-12 | 2018-03-30 | 神华集团有限责任公司 | 一种刚性增强聚甲醛复合材料及其制备方法 |
| JP6938267B2 (ja) * | 2017-08-03 | 2021-09-22 | 旭化成株式会社 | ポリオキシメチレン樹脂組成物 |
| JP6938266B2 (ja) * | 2017-08-03 | 2021-09-22 | 旭化成株式会社 | ポリオキシメチレン樹脂組成物及び成形体 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1726256A (zh) * | 2002-12-17 | 2006-01-25 | 纳幕尔杜邦公司 | 结晶热塑性材料与无机填料的相容性改进 |
| CN101205347A (zh) * | 2006-12-20 | 2008-06-25 | 上海日之升新技术发展有限公司 | 一种综合性能优异的高韧性聚甲醛材料的制备方法 |
| CN101629008A (zh) * | 2009-07-07 | 2010-01-20 | 中国蓝星（集团）股份有限公司 | 一种聚甲醛共混材料及其制备方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1726256A (zh) * | 2002-12-17 | 2006-01-25 | 纳幕尔杜邦公司 | 结晶热塑性材料与无机填料的相容性改进 |
| CN101205347A (zh) * | 2006-12-20 | 2008-06-25 | 上海日之升新技术发展有限公司 | 一种综合性能优异的高韧性聚甲醛材料的制备方法 |
| CN101629008A (zh) * | 2009-07-07 | 2010-01-20 | 中国蓝星（集团）股份有限公司 | 一种聚甲醛共混材料及其制备方法 |
Non-Patent Citations (1)
| Title |
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| 耐磨消音聚甲醛复合材料的开发;冯清正等;《工程塑料应用》;20130731;第41卷(第7期);第21-25页 * |
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