CN112094466A - 一种新型耐热pvc型材及其制备方法 - Google Patents

一种新型耐热pvc型材及其制备方法 Download PDF

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CN112094466A
CN112094466A CN201910526102.XA CN201910526102A CN112094466A CN 112094466 A CN112094466 A CN 112094466A CN 201910526102 A CN201910526102 A CN 201910526102A CN 112094466 A CN112094466 A CN 112094466A
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heat
resistant
parts
pvc profile
resistant pvc
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石建文
王文凤
张家鹤
魏得虎
史占权
邬智勇
任超
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Yili Ecological Science And Technology Co ltd
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    • 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
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2237Oxides; Hydroxides of metals of titanium
    • C08K2003/2241Titanium dioxide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • 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
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

本发明公开了一种新型耐热PVC型材及其制备方法,其由PVC树脂粉和助剂组成,所述助剂由耐热改性剂、稳定剂、碳酸钙、增韧剂、加工改性剂、钛白粉、润滑剂组成,所述的耐热剂为苯乙烯‑丁烯酸‑丙烯腈共聚物;本发明的优点:本发明通过添加耐热剂苯乙烯‑丁烯酸‑丙烯腈共聚物,能够明显提高维卡软化点,在明显提高PVC型材的耐热性基础上,能够保持冲击强度和拉伸强度变化不大,整体性能优良。

Description

一种新型耐热PVC型材及其制备方法
技术领域:
本发明涉及PVC新材料技术领域,尤其涉及一种新型耐热PVC型材及其制备方法。
背景技术:
PVC是五大合成热塑性塑料之一,其产量仅次于聚乙烯,且PVC以硬质产品为主;PVC型材在家具、装饰行业应用广泛,以较快速度发展,但PVC型材耐热不高,无法满足在高温条件下长期使用的需求,限制了它的应用范围,故提高PVC型材的耐热性是PVC型材开发应用的关键之一,将促进其在更多行业中的应用和发展。
发明内容:
本发明为了克服现有技术中的PVC材料普遍存在的耐热性差的问题),提供一种新型耐热PVC型材及其制备方法。
本发明由如下技术方案实施:一种新型耐热PVC型材及其制备方法,其由PVC树脂粉和助剂组成,所述助剂由耐热改性剂、稳定剂、碳酸钙、增韧剂、加工改性剂、钛白粉、润滑剂组成,所述的耐热剂为苯乙烯-丁烯酸-丙烯腈共聚物。
进一步的,所述PVC型材的组成为以重量百分比为基准的PVC树脂粉100份、耐热改性剂5-20份、稳定剂3-5份、碳酸钙10-20份、增韧剂8-12份、加工改性剂0.5-1.5份、钛白粉4-8份、润滑剂0.5-1.5份。
进一步的,所述PVC树脂粉为SG-5树脂。
进一步的,所述的稳定剂是钙锌复合热稳定剂。
进一步的,所述的碳酸钙的粒度为1250目。
进一步的,所述的增韧剂为CPE。
进一步的,所述的加工改性剂为ACR。
进一步的,所述的钛白粉为锐钛型钛白粉。
进一步的,所述的润滑剂为硬脂酸和石蜡。
进一步的,所述的PVC型材按如下步骤进行:
(1)按照权利要求2所述的原料配方配比将PVC树脂粉和助剂加入高速搅拌机,启动搅拌机搅拌,当温度达到100-130℃时,搅拌2-5分钟,然后进入冷搅拌机,当温度达到40-60℃时,将其排出并加入到平行双螺杆挤出机中;
(2)经平行双螺杆挤出机挤出,保证平行双螺杆挤出机挤的各段温度为:输送段140-170℃,压缩段150-180℃,熔融段160-190℃,机头160-180℃;
(3)由所述输送段进入到口模内成型,再经过真空定型、冷却至室温即可制得所述的耐热PVC型材。
本发明的优点:本发明通过添加耐热剂苯乙烯-丁烯酸-丙烯腈共聚物,能够明显提高维卡软化点,在明显提高PVC型材的耐热性基础上,能够保持冲击强度和拉伸强度变化不大,整体性能优良。
具体实施方式:
实施例1:
PVC树脂100份、耐热改性剂5份、稳定剂3.8份、碳酸钙(CaCO3)18份、增韧剂9份、加工改性剂0.5份、钛白粉5份、润滑剂0.7份;将上述各种成分混合出料;将上述步骤预混好的干粉料加入挤出机中生产型材;高速搅拌,当温度达到110℃时,搅拌4分钟,进入冷搅拌机至45℃出料;挤出机各区的温度设定:输送段150℃,压缩段170℃,熔融段180℃,机头175℃。
实施例2:
PVC树脂100份、耐热改性剂10份、稳定剂4.3份、碳酸钙(CaCO3)16份、增韧剂10份、加工改性剂0.7份、钛白粉6份、润滑剂0.8份;将上述各种成分混合出料;将上述步骤预混好的干粉料加入挤出机中生产型材;高速搅拌,当温度达到110℃时,搅拌4分钟,进入冷搅拌机至45℃出料;挤出机各区的温度设定:输送段150℃,压缩段170℃,熔融段180℃,机头175℃。
实施例3:
PVC树脂100份、耐热改性剂15份、稳定剂4.9份、碳酸钙(CaCO3)13份、增韧剂10份、加工改性剂0.9份、钛白粉7份、润滑剂0.1.1份;将上述各种成分混合出料;将上述步骤预混好的干粉料加入挤出机中生产型材;高速搅拌,当温度达到110℃时,搅拌4分钟,进入冷搅拌机至45℃出料;挤出机各区的温度设定:输送段150℃,压缩段170℃,熔融段180℃,机头175℃。
对比例:
PVC树脂100份、稳定剂3.5份、碳酸钙(CaCO3)19份、增韧剂8份、加工改性剂0.5份、钛白粉5份、润滑剂0.6份;将上述各种成分混合出料;将上述步骤预混好的干粉料加入挤出机中生产型材;高速搅拌,当温度达到110℃时,搅拌4分钟,进入冷搅拌机至45℃出料;挤出机各区的温度设定:输送段150℃,压缩段170℃,熔融段180℃,机头175℃。
实施例效果
性能 对比例 实施例1 实施例2 实施例3
维卡软化点(℃,V<sub>vicat</sub> 5 kN) 81.2 84.5 87.3 90.3
缺口冲击强度(KJ/m<sup>2</sup>) 4.12 4.06 3.98 3.89
拉伸强度(MPa) 48.2 49.8 50.2 52.3
从实施效果看出,耐热剂苯乙烯-丁烯酸-丙烯腈共聚物的加入,维卡软化点明显升高,冲击强度和拉伸强度变化不大,PVC耐热型材的耐热性能优良。

Claims (10)

1.一种新型耐热PVC型材及其制备方法,其由PVC树脂粉和助剂组成,所述助剂由耐热改性剂、稳定剂、碳酸钙、增韧剂、加工改性剂、钛白粉、润滑剂组成,其特征在于:所述的耐热剂为苯乙烯-丁烯酸-丙烯腈共聚物。
2.根据权利要求1所述的耐热PVC型材,其特征在于:所述PVC型材的组成为以重量百分比为基准的PVC树脂粉100份、耐热改性剂5-20份、稳定剂3-5份、碳酸钙10-20份、增韧剂8-12份、加工改性剂0.5-1.5份、钛白粉4-8份、润滑剂0.5-1.5份。
3.根据权利要求1所述的一种新型耐热PVC型材及其制备方法,其特征在于:所述PVC树脂粉为SG-5树脂。
4.根据权利要求1所述的耐热PVC型材,其特征在于:所述的稳定剂是钙锌复合热稳定剂。
5.根据权利要求1所述的耐热PVC型材,其特征在于:所述的碳酸钙的粒度为1250目。
6.根据权利要求1所述的耐热PVC型材,其特征在于:所述的增韧剂为CPE。
7.根据权利要求1所述的耐热PVC型材,其特征在于:所述的加工改性剂为ACR。
8.根据权利要求1所述的耐热PVC型材,其特征在于:所述的钛白粉为锐钛型钛白粉。
9.根据权利要求1所述的耐热PVC型材,其特征在于:所述的润滑剂为硬脂酸和石蜡。
10.根据权利要求2所述的一种新型耐热PVC型材及其制备方法,其特征是在于,所述的PVC型材按如下步骤进行:
(1)按照权利要求2所述的原料配方配比将PVC树脂粉和助剂加入高速搅拌机,启动搅拌机搅拌,当温度达到100-130℃时,搅拌2-5分钟,然后进入冷搅拌机,当温度达到40-60℃时,将其排出并加入到平行双螺杆挤出机中;
(2)经平行双螺杆挤出机挤出,保证平行双螺杆挤出机挤的各段温度为:输送段140-170℃,压缩段150-180℃,熔融段160-190℃,机头160-180℃;
(3)由所述输送段进入到口模内成型,再经过真空定型、冷却至室温即可制得所述的耐热PVC型材。
CN201910526102.XA 2019-06-18 2019-06-18 一种新型耐热pvc型材及其制备方法 Pending CN112094466A (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1217998A (en) * 1968-04-19 1971-01-06 Pechiney Saint Gobain Method of improving and working polyvinyl chloride having a high softening point
WO2002059439A1 (de) * 2001-01-24 2002-08-01 Hans-Heinz Helge Profil zum separieren eines raumes und verfahren zur herstellung des profils sowie dessen verwendung
CN101635386A (zh) * 2009-09-01 2010-01-27 南京工业大学 一种基站天线用耐高温pvc异型材外罩及其制备方法
CN105924851A (zh) * 2016-06-23 2016-09-07 苏州亚科塑胶有限公司 一种耐热改性pvc塑料管材的制备工艺

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1217998A (en) * 1968-04-19 1971-01-06 Pechiney Saint Gobain Method of improving and working polyvinyl chloride having a high softening point
WO2002059439A1 (de) * 2001-01-24 2002-08-01 Hans-Heinz Helge Profil zum separieren eines raumes und verfahren zur herstellung des profils sowie dessen verwendung
CN101635386A (zh) * 2009-09-01 2010-01-27 南京工业大学 一种基站天线用耐高温pvc异型材外罩及其制备方法
CN105924851A (zh) * 2016-06-23 2016-09-07 苏州亚科塑胶有限公司 一种耐热改性pvc塑料管材的制备工艺

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