CN105860349A - 一种pvc环保塑料的制备方法 - Google Patents

一种pvc环保塑料的制备方法 Download PDF

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CN105860349A
CN105860349A CN201610279032.9A CN201610279032A CN105860349A CN 105860349 A CN105860349 A CN 105860349A CN 201610279032 A CN201610279032 A CN 201610279032A CN 105860349 A CN105860349 A CN 105860349A
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Wuxi Zhigu Ruituo Technology Service Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F120/00Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F120/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F120/10Esters
    • C08F120/26Esters containing oxygen in addition to the carboxy oxygen
    • C08F120/32Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06Homopolymers or copolymers of vinyl chloride
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
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Abstract

本发明涉及一种PVC环保塑料的制备方法,该方法包括:称取聚氯乙烯120千克、甲基丙烯酸缩水甘油酯25千克、炭黑30千克、玻璃纤维20千克、聚对苯二甲酸乙二醇酯15千克、硬脂酸15千克和(S)‑3‑(1‑甲基环丙基)‑6‑((1‑苯基乙基)氨基)嘧啶‑2,4(1H,3H)‑二酮15千克,加入高速混合机混合10min,加入双螺杆挤出机中,经熔融挤出,挤出机的加工温度由下料口到模口依次为165℃、173℃、180℃、192℃,主机转速为150rpm,真空度为0.4Mpa,出料即得。

Description

一种PVC环保塑料的制备方法
技术领域
本发明涉及材料领域,具体的说,本发明涉及一种PVC环保塑料的制备方法。
背景技术
随着我国塑料制品的广泛应用,塑料膜的需求量也逐渐增加。目前,很多企业利用废旧聚乙烯塑料来生产塑料膜,然后制成各种规格的包装袋。利用废旧聚乙烯塑料来生产塑料膜生产出的塑料膜抗拉强度小、抗冲击力弱、流动性较差、从而影响使用。并且,这种塑料膜不易降解,对环境已经造成严重的“白色污染”。
塑料膜在其合成、贮存及其加工和最终应用的各个阶段都可能发生变质,即材料的性能变坏,例如泛黄、相对分子量下降、制品表面龟裂、光泽丧失,更为严重的是导致冲击强度、挠曲强度、拉伸强度和伸长率等力学性能大幅下降,从而影响膜的正常使用。这种现象称为老化。从化学的角度上看,塑料材料无论是天然的还是合成的,都具有一定的分子结果,其中某些部位具有一些弱键,这些弱键自然地称为化学反应的突破口。塑料老化的本质无非是一种化学反应,即以弱键发生化学反应,如氧化反应等为起点并引发一系列化学反应。它可以由许多原因引起,如热、紫外光、机械应力、高能辐射、电场等等,可以单独一种因素,也可以多种因素共同作用。其结果是高分子材料的分子结构发生改变及相对分子质量下降或产生交联,从而材料性能变坏,以至无法使用。
发明内容
本发明的目的在于提供一种PVC环保塑料的制备方法。
为了实现本发明的目的,本发明提供一种PVC环保塑料的制备方法,该方法包括下列步骤:称取聚氯乙烯120千克、甲基丙烯酸缩水甘油酯25千克、炭黑30千克、玻璃纤维20千克、聚对苯二甲酸乙二醇酯15千克、硬脂酸15千克和(S)-3-(1-甲基环丙基)-6-((1-苯基乙基)氨基)嘧啶-2,4(1H,3H)-二酮15千克,加入高速混合机混合10min,加入双螺杆挤出机中,经熔融挤出,挤出机的加工温度由下料口到模口依次为165℃、173℃、180℃、192℃,主机转速为150rpm,真空度为0.4Mpa,出料即得。
本发明提供的防老化塑料膜在150℃高温稳定性达到了252天以上,水中热氧化稳定性达到了156天以上,光稳定性达到了187天以上,极大提升了塑料膜的防老化性能,延长了使用寿命,另外其防渗透性能、防水性能、透气性能和耐低温性能均有很大的提高。
具体实施方式
以下通过具体实施方式的描述对本发明作进一步说明,但这并非是对本发明的限制,本领域技术人员根据本发明的基本思想,可以做出各种修改或改进,但是只要不脱离本发明的基本思想,均在本发明的范围之内。
实施例1
称取聚氯乙烯120千克、甲基丙烯酸缩水甘油酯25千克、炭黑30千克、玻璃纤维20千克、聚对苯二甲酸乙二醇酯15千克、硬脂酸15千克和(S)-3-(1-甲基环丙基)-6-((1-苯基乙基)氨基)嘧啶-2,4(1H,3H)-二酮15千克,加入高速混合机混合10min,加入双螺杆挤出机中,经熔融挤出,挤出机的加工温度由下料口到模口依次为165℃、173℃、180℃、192℃,主机转速为150rpm,真空度为0.4Mpa,出料即得。
实施例2
按照和实施例1相同的方式制备PVC环保塑料,不同之处在于不使用(S)-3-(1-甲基环丙基)-6-((1-苯基乙基)氨基)嘧啶-2,4(1H,3H)-二酮。
实验例
采用中华人民共和国国家标准GB/T 7141-2008来进行塑料热老化试验。结果如下:实施例1的塑料对于150℃高温稳定性达到了280天,水中热氧化稳定性达到了170天,光稳定性达到了200天;而实施例2的塑料对于150℃高温稳定性达到了210天,水中热氧化稳定性达到了110天,光稳定性达到了130天。由此可见,加入防老化剂可以极大提升了塑料膜的防老化性能,实施例1的结果与实施例2的结果进行比较,差异具有统计学意义(P<0.05)。

Claims (1)

1.一种PVC环保塑料的制备方法,其特征在于,该方法可以包括下列步骤:称取聚氯乙烯120千克、甲基丙烯酸缩水甘油酯25千克、炭黑30千克、玻璃纤维20千克、聚对苯二甲酸乙二醇酯15千克、硬脂酸15千克和(S)-3-(1-甲基环丙基)-6-((1-苯基乙基)氨基)嘧啶-2,4(1H,3H)-二酮15千克,加入高速混合机混合10min,加入双螺杆挤出机中,经熔融挤出,挤出机的加工温度由下料口到模口依次为165℃、173℃、180℃、192℃,主机转速为150rpm,真空度为0.4Mpa,出料即得。
CN201610279032.9A 2016-04-28 2016-04-28 一种pvc环保塑料的制备方法 Withdrawn CN105860349A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107226973A (zh) * 2017-06-20 2017-10-03 苏州奥宇包装科技有限公司 一种木制品用包装膜的制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107226973A (zh) * 2017-06-20 2017-10-03 苏州奥宇包装科技有限公司 一种木制品用包装膜的制备方法

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Application publication date: 20160817