CN102911486B - 利用再生pet树脂制备pet/pbt合金的方法 - Google Patents

利用再生pet树脂制备pet/pbt合金的方法 Download PDF

Info

Publication number
CN102911486B
CN102911486B CN201210439186.1A CN201210439186A CN102911486B CN 102911486 B CN102911486 B CN 102911486B CN 201210439186 A CN201210439186 A CN 201210439186A CN 102911486 B CN102911486 B CN 102911486B
Authority
CN
China
Prior art keywords
pet
pbt
resin
alloy
regenerative
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201210439186.1A
Other languages
English (en)
Other versions
CN102911486A (zh
Inventor
肖朗
徐东
马继勇
李静
王丽娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XINJIANG BLUE RIDGE TUNHE POLYESTER CO Ltd
Original Assignee
XINJIANG BLUE RIDGE TUNHE POLYESTER CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XINJIANG BLUE RIDGE TUNHE POLYESTER CO Ltd filed Critical XINJIANG BLUE RIDGE TUNHE POLYESTER CO Ltd
Priority to CN201210439186.1A priority Critical patent/CN102911486B/zh
Publication of CN102911486A publication Critical patent/CN102911486A/zh
Application granted granted Critical
Publication of CN102911486B publication Critical patent/CN102911486B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

本发明公开了一种利用再生PET树脂制备PET/PBT合金的方法，属于一种聚酯生产工艺。是选择回收的矿泉水包装瓶制备再生PET树脂切片，再利用共聚、共混的方法并在共混前对PBT树脂和再生PET进行的预处理，提高了再生PET切片的粘度和PBT树脂的机械性能，之后将配料在混料机内进行混合，用双螺杆挤出机制备成品合金切片，其性能与非再生PET/PBT树脂合金相当。

Description

利用再生PET树脂制备PET/PBT合金的方法
技术领域：本发明涉及一种合金的制备方法，特别是利用再生树脂制备合金的方法。 
背景技术：聚对苯二甲酸丁二醇脂(PBT)与聚对苯二甲酸乙二醇脂(PET)具有耐高温、耐湿、耐腐蚀、电绝缘性良好和弹性良好等特点，且在较宽温度范围内有良好的力学性能。但是PBT树脂结晶速度快，玻璃化温度低，易造成冷热不均，引起变形。而PET树脂玻璃化温度高，结晶速度慢，成型周期长，使得它们在工程塑料上的应用受到限制。利用共聚、共混的方法能综合它们各自性能，取长补短，弥补单一组分性能上的缺陷，获得综合性能较为理想的共混物。制备PET/PBT合金技术主要是通过共混的方法在PET/PBT合金中加入成核剂、结晶剂、填料、和玻璃纤维等以改善合金的结晶速率，提高合金的强度和韧性。在电子电器和汽车等领域广泛应用。而PET树脂作为饮料包装材料大量使用，且均为一次性使用，造成环境的污染和资源的极大浪费。回收利用再生PET资源有重要意义。然而，PET应用种类很多，成分不同，容易造成产品性能不稳定，同时利用再生品会产生粘度降，需要增粘，因此无人从事此事。 
发明内容：本发明的目的是提供一种用再生PET树脂制备PET/PBT合金的方法，使其性能与非再生PET/PBT树脂合金相当。为达到这一目标采用了如下的工艺：利用再生PET树脂制备PET/PBT 合金的方法，是选择回收的矿泉水包装瓶制备再生PET树脂切片，再与PBT树脂制成PET/PBT合金，其具体工艺是： 
①矿泉水瓶洗净去除瓶盖、标签等非PET材料，用破碎机破碎，再清洗、烘干，挤出造粒，制得再生PET切片。 
②将再生PET切片与PBT树脂混合，PET切片按重量计占45-55％，然后加入转釜加热，温度升到65±2℃时抽真空，全程真空度在2kpa以下，升温速率5℃/10min，温度加热至210±2℃出料，制得混合粒子。 
③配料 
再生PET、PBT树脂混合粒子75-85％ 
复配阻燃剂3-7％，其中包括：三聚氰胺氰尿酸盐(MCA)40％、聚磷酸密铵盐(MPP)35％，滑石粉25％ 
三氧化二锑2-8％，玻璃纤维15-25％ 
相容剂  乙烯-甲基丙烯酸酯共聚物(EMA1125)2-5％ 
增韧剂  甲基丙烯酸缩水甘油酯接枝乙烯-辛烯共聚物(POE-g-GMA)2-7％ 
抗氧剂1330  0.1-1％ 
④按照上述配方在混料机内进行混合，用双螺杆挤出机制备成品合金切片，参数如下： 
挤出机八段温度160-180-210-220-245-260-270-265℃ 
螺杆转速80rpm    喂料速度7rpm 
采用再生树脂制备PET/PBT合金的上述工艺，在共混前对PBT树脂和再生PET进行的预处理，提高了再生PET切片的粘度和PBT树脂的机械性能，并且降低切片中小分子，特别是PBT切片中有害的四氢呋喃小分子数量，增强了PBT/PET合金的机械性能。 
具体实施方式：利用再生PET树脂制备PET/PBT合金的方法，是选择回收的矿泉水包装瓶制备再生PET树脂切片，再与PBT树脂制成PET/PBT合金。PET瓶市场中主要有三类，第一类为用于碳酸类饮料的包装，第二类为用于矿泉水类的包装，第三类为用于茶、果汁类的饮料包装，三种瓶片主要差异为粘度和改性成分的不同，但同一类PET产品主要质量指标和改性成分相近。 
本发明为保证产品质量稳定选择回收的矿泉水类的包装瓶。该类包装瓶具有产品粘度高，市场销售量大，容易从其他包装瓶中进行区分等特点。其具体工艺是： 
回收PET瓶的处理--矿泉水瓶洗净去除瓶盖、标签等非PET材料，用破碎机破碎，再清洗、烘干，挤出造粒，制得再生PET切片备用； 
制备混合粒子--将回收的PET切片和PBT树脂切片按照PET树脂质量45-55％进行混合，加入转釜。当物料加入完成转釜开始加热，温度在65±2℃时进行抽真空，全程真空度要求在2kpa以下，升温速率控制5℃/10min，温度加热至210±2℃开始出料。得到的是经过粘度提升的PET，PBT混合粒子。 
制备合金切片的质量要求--如果混合粒子出转釜超过24小时，在进挤出机前应进行烘干除水处理，条件为在120℃下干燥4小时。 
混合粒子中PBT特性粘度要求为不低于1.0dl/g。PET特性粘度不低于0.75dl/g。 
制备成品合金切片--按照配料要求将各组分在混料机内进行混合，用双螺杆挤出机制备成品合金切片。双螺杆挤出机制备成品合金的参数如下：挤出机八段温度160-180-210-220-245-260-270-265℃，螺杆转速80rpm，喂料速度7rpm 
制备成品合金切片的配料组分-- 
再生PET、PBT树脂混合粒子75-85％ 
复配阻燃剂3-7％，其中包括：三聚氰胺氰尿酸盐(MCA)40％、聚磷酸密铵盐(MPP)35％、滑石粉25％；三氧化二锑2-8％ 
玻璃纤维15-25％ 
相容剂  乙烯-甲基丙烯酸酯共聚物(EMA1125)2-5％ 
增韧剂  甲基丙烯酸缩水甘油酯接枝乙烯-辛烯共聚物(POE-g-GMA)，2-7％ 
抗氧剂1330，0.1-1％。 

Claims (1)

1.利用再生PET树脂制备PET/PBT合金的方法，其特征是：选择回收的矿泉水包装瓶制备再生PET树脂切片，再与PBT树脂进行提高切片粘度和机械性能的预处理，然后制成PET/PBT合金；
预处理的方法是：将再生PET切片与PBT树脂混合，PET切片按重量计占45％-55％，然后加入转釜加热，温度升到65±2℃时抽真空，全程真空度在2kpa以下，升温速率5℃/10min，温度加热至210±2℃出料，制得混合粒子；
合金的制备步骤是：
①配料，再生PET、PBT树脂混合粒子75-85％；
复配阻燃剂：3-7％，其中包括：三聚氰胺氰尿酸盐(MCA)40％、聚磷酸密铵盐(MPP)35％、滑石粉25％；
三氧化二锑2-8％，玻璃纤维15-25％；
相容剂：乙烯-甲基丙烯酸酯共聚物2-5％；
增韧剂：甲基丙烯酸缩水甘油酯接枝乙烯-辛烯共聚物(POE-g-GMA)，2-7％；
抗氧剂1330，0.1-1％；
②按照上述配方在混料机内进行混合，在双螺杆挤出机制备成品合金切片，参数如下：
挤出机八段温度160-180-210-220-245-260-270-265℃；
螺杆转速80rpm，喂料速度7rpm。
CN201210439186.1A 2012-11-07 2012-11-07 利用再生pet树脂制备pet/pbt合金的方法 Active CN102911486B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210439186.1A CN102911486B (zh) 2012-11-07 2012-11-07 利用再生pet树脂制备pet/pbt合金的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210439186.1A CN102911486B (zh) 2012-11-07 2012-11-07 利用再生pet树脂制备pet/pbt合金的方法

Publications (2)

Publication Number Publication Date
CN102911486A CN102911486A (zh) 2013-02-06
CN102911486B true CN102911486B (zh) 2015-01-07

Family

ID=47610079

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210439186.1A Active CN102911486B (zh) 2012-11-07 2012-11-07 利用再生pet树脂制备pet/pbt合金的方法

Country Status (1)

Country Link
CN (1) CN102911486B (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105385119B (zh) * 2015-11-24 2016-12-14 金发科技股份有限公司 一种玻纤增强阻燃pbt组合物及其制备方法
CN110157163A (zh) * 2019-05-27 2019-08-23 福建师范大学 一种混杂纤维增强r-PET工程塑料及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102108189A (zh) * 2009-12-28 2011-06-29 上海日之升新技术发展有限公司 一种pbt/pet合金材料及其制备方法
CN102276963A (zh) * 2010-06-11 2011-12-14 东丽纤维研究所（中国）有限公司 一种阻燃性聚酯树脂组合物及成型品
CN102321349A (zh) * 2011-08-05 2012-01-18 江阴市龙山合成材料有限公司 玻纤增强无卤阻燃pbt

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090043019A1 (en) * 2007-08-06 2009-02-12 Jing-Chung Chang Flame retardant polytrimethylene terephthalate composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102108189A (zh) * 2009-12-28 2011-06-29 上海日之升新技术发展有限公司 一种pbt/pet合金材料及其制备方法
CN102276963A (zh) * 2010-06-11 2011-12-14 东丽纤维研究所（中国）有限公司 一种阻燃性聚酯树脂组合物及成型品
CN102321349A (zh) * 2011-08-05 2012-01-18 江阴市龙山合成材料有限公司 玻纤增强无卤阻燃pbt

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PBT/PET固态缩聚产物热行为;杨桦;《合成技术及应用》;19970331;第12卷(第3期);第6-9页 *

Also Published As

Publication number Publication date
CN102911486A (zh) 2013-02-06

Similar Documents

Publication Publication Date Title
CN103030886B (zh) 一种透明聚丙烯及其制备方法
CN102532687A (zh) 一种低收缩率的复合材料及其制备方法
CN104419128A (zh) 一种回收pet合金及其制备方法
CN102964686B (zh) 一种消除虎皮纹聚丙烯复合材料及其制备方法
CN103360732B (zh) 一种回收聚对苯二甲酸乙二醇酯/丙烯腈‑丁二烯‑苯乙烯共聚物合金及其制备方法
CN101993563A (zh) 一种汽车保险杠聚丙烯专用料的制备方法
CN104292622A (zh) 一种低流痕、低熔接痕的聚丙烯组合物及其制备方法
CN104086958B (zh) 无机粉体高填充双降解聚烯烃薄膜及其制备方法
CN102911486B (zh) 利用再生pet树脂制备pet/pbt合金的方法
CN104592730A (zh) 一种聚乳酸/聚酯合金及其制备方法
CN103613852B (zh) 利用废电瓶壳料制备的聚丙烯复合材料及其制备方法和应用
CN103131149A (zh) 一种聚乳酸复合材料、其制品制备方法及其应用
CN107383255A (zh) 一种透明宽分子量分布无规共聚聚丙烯吸塑成型专用树脂及制备方法
CN104231408A (zh) 一种高耐候滚塑聚乙烯材料及其制备方法
CN103408834B (zh) 一种高抗冲耐老化抗静电pp聚合物及其制备方法和应用
CN105504748A (zh) 一种pc/abs无载体高光改性母料的制备方法
CN102010582A (zh) 一种改性聚对苯二甲酸乙二醇酯瓶回收料制备塑料模板的方法
CN104086971A (zh) 一种高流动性阻燃聚碳酸酯-聚苯乙烯组合物及其制备方法
CN102757616B (zh) 一种树脂材料及其制备方法
CN102295797B (zh) 一种无卤阻燃聚烯烃材料及其制备方法和应用
CN102367325B (zh) 一种啤酒包装用pet复合材料及其制备工艺
CN104387662A (zh) 一种低成本耐刮擦pp/pet合金材料及其制备方法
CN114539678B (zh) 一种节能型再生聚丙烯复合材料及其制备方法
CN102532793A (zh) 一种塑料去纹增亮剂及其制备方法
CN102952335B (zh) 一种利用废洗衣机内桶料制备的聚丙烯料及其制备方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Preparation of PET / PBT Alloy from recycled PET resin

Effective date of registration: 20201116

Granted publication date: 20150107

Pledgee: Agricultural Development Bank of China Changji Hui Autonomous Prefecture Branch Business Department

Pledgor: XINJIANG BLUE RIDGE TUNHE POLYESTER Co.,Ltd.

Registration number: Y2020990001352