CN106009366B - 一种高透pvc润滑剂及其制备方法 - Google Patents

一种高透pvc润滑剂及其制备方法 Download PDF

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CN106009366B
CN106009366B CN201610344502.5A CN201610344502A CN106009366B CN 106009366 B CN106009366 B CN 106009366B CN 201610344502 A CN201610344502 A CN 201610344502A CN 106009366 B CN106009366 B CN 106009366B
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李光千
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Zhenjiang three dimensional transmission equipment Limited by Share Ltd
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    • 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
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Abstract

本发明涉及一种润滑剂,特别涉及一种高透PVC润滑剂及其制备方法。一种高透PVC润滑剂,由如下以重量份计的原料制成:矿物油50‑55,纯腰果油树脂6‑8,三油酸甘油酯14‑18,氢化植物油20‑25,丙二醇12‑18。本发明采用的高透PVC润滑剂可以有效改善PVC产品的物理性能,制得PVC产品的透光率和光泽度更佳。

Description

一种高透PVC润滑剂及其制备方法
技术领域
本发明涉及一种润滑剂,特别涉及一种高透PVC润滑剂及其制备方法。
背景技术
PVC指的是聚氯乙烯树脂(Poly Vinyl Chloride)简称PVC。是一种乙烯基的聚合物质,其材料是一种非结晶性材料。PVC材料在实际使用中经常加入稳定剂、润滑剂、辅助加工剂、色料、抗冲击剂及其它添加剂。具有不易燃性、高强度、耐气侯变化性以及优良的几何稳定性。
PVC润滑剂的作用是在塑料加工中改善树脂的流动性和制品的脱模性,防止在机内或模具内因粘着而产生缺陷。一般加在模塑料中或涂于模腔表面。常用润滑剂有脂肪酸及其盐类,长链脂肪烃。根据润滑剂作用的机理不同可分为外润滑剂和内润滑剂。
(1)外润滑剂:这种润滑剂与模塑用树脂的相容性较差,因此常用在成型加工机械或模具上,它与树脂之间形成一润滑层,便于树脂流动和制品脱模,如石蜡。
(2)内润滑剂:此类润滑剂与树脂的相容性好,常掺入树脂之中,降低树脂的熔体粘度,改善其流动性。如硬脂酸丁酯、硬脂酸铅等。硬脂酸盐类既是良好的润滑剂,又是有效的稳定剂。
但是目前的各种润滑剂均不适用于生产质量更佳、透明度更好的PVC产品。
发明内容
本发明的目的在于提供一种适用于生产质量更佳、透明度更好的PVC产品的高透PVC润滑剂。
本发明解决其技术问题所采用的技术方案是:
一种高透PVC润滑剂,由如下以重量份计的原料制成:矿物油50-55,纯腰果油树脂6-8,三油酸甘油酯14-18,氢化植物油20-25,丙二醇12-18。纯腰果油树脂在配方中使各组分相容性更佳,在制备PVC制品的时候,浸润到PVC树脂粉料中,受热后发生物理化学反应,从而使制得的PVC制品透明度更好。纯腰果油树脂为市售产品。
一种所述的高透PVC润滑剂的制备方法,该方法包括如下步骤:
①将所述的原料按照配比投入反应釜中,搅拌下,升温至120-125℃;
②步骤①投料升温后的物料,在0.07-0.09Mpa压力下,继续搅拌、缓慢升温至160℃,并在160-170℃温度下,保温反应10小时,得到淡黄色或透明流动性液体;
③步骤②的反应产物降温至90℃恒温,备切片;
④步骤③的反应产物,经转鼓式冷凝结晶切片机切片,质量检验合格后,包装。
作为优选,步骤②中,所述的淡黄色或透明流动性液体置于微波处理器中,在微波频率为915MHz或者2450MHz,环境温度为60~90℃条件下,微波加热处理2~3分钟。经过该步骤处理后,制成的高透PVC润滑剂化学稳定性更佳。
作为优选,微波加热处理后得到的液体经过活性炭过滤后进入步骤③。该步骤可以除去原料中的各种杂质,有利于得到透明度更好的PVC制品。
本发明采用的高透PVC润滑剂可以有效改善PVC产品的物理性能,制得PVC产品的透光率和光泽度更佳。
具体实施方式
下面通过具体实施例,对本发明的技术方案作进一步的具体说明。应当理解,本发明的实施并不局限于下面的实施例,对本发明所做的任何形式上的变通和/或改变都将落入本发明保护范围。
在本发明中,若非特指,所有的份、百分比均为重量单位,所采用的设备和原料等均可从市场购得或是本领域常用的。下述实施例中的方法,如无特别说明,均为本领域的常规方法。
纯腰果油树脂,美国卡德莱5341#。
实施例1:
一种高透PVC润滑剂是由表1所示的以重量份计的原料制成,制备方法包括如下步骤:
①表1所述的原料按照配比投入反应釜中,搅拌下,升温至120-125℃;
②步骤①投料升温后的物料,在0.07-0.09Mpa压力下,继续搅拌、缓慢升温至160℃,并在160-170℃温度下,保温反应10小时,得到淡黄色或透明流动性液体;
③步骤②的反应产物降温至90℃恒温,备切片;
④步骤③的反应产物,经转鼓式冷凝结晶切片机切片,质量检验合格后,包装。
表1(单位:kg)
实施例 1 2 3 4
矿物油 55 53 50 52
纯腰果油树脂 6 8 7 8
三油酸甘油酯 14 14 15 18
氢化植物油 20 22 20 25
丙二醇 12 15 16 18
实施例2-4:
一种高透PVC润滑剂是由表1所示的以重量份计的原料制成,制备方法包括如下步骤:
①表1所述的原料按照配比投入反应釜中,搅拌下,升温至120-125℃;
②步骤①投料升温后的物料,在0.07-0.09Mpa压力下,继续搅拌、缓慢升温至160℃,并在160-170℃温度下,保温反应10小时,得到淡黄色或透明流动性液体;在微波频率为915MHz,环境温度为80℃条件下,微波加热处理2分钟。微波加热处理后得到的液体经过活性炭过滤后进入步骤③。
③步骤②的反应产物降温至90℃恒温,备切片;
④步骤③的反应产物,经转鼓式冷凝结晶切片机切片,质量检验合格后,包装。
采用上述实施例制得的润滑剂进行高透PVC制品的生产,原料见表2,其制备方法是:表2中的原料投入高速搅拌机在115℃下搅拌15分钟,然后放入冷却搅拌机内冷却,温度降至50℃后转移至挤出机进行挤出塑化,塑化温度为150℃-195℃,挤出塑化过程分为5段,分别是155、165、170、175、185℃,模具间温度为185-195℃,最后得到产品。实施例5、6、7采用与实施例1相同的高透PVC润滑剂配方和制备方法。
表2(单位:kg)
上述实施例制得的PVC产品经检测各性能均满足国家标准,其中透光率数据如表3所示,比较例中的润滑剂采用市售润滑剂其他物料和方法相同。
表3(检测对象为厚度为1cm的PVC产品)
实施例 1 2 3 4 5 6 7 比较例
透光率% 87 92 91 93 85 86 88 72
雾度 1.2 1.1 1.0 1.0 1.3 1.2 1.2 2.9
其中,透光率和雾度是采用Nippon Denshoku的雾度仪NDH2000进行检测。
本发明通过选用及确定合适的润滑剂组份及比例而产生的协同效应以及最佳的润滑剂生产工艺,使润滑剂的对产品的透明度影响有了明显的提高,达到提高透明度的目的。同时,制得的PVC制品光泽度较好,抗拉强度强,化学稳定好,在同类产品中可脱颖而出。
以上所述的实施例只是本发明的一种较佳的方案,并非对本发明作任何形式上的限制,在不超出权利要求所记载的技术方案的前提下还有其它的变体及改型。

Claims (4)

1. 一种高透PVC润滑剂,其特征在于由如下以重量份计的原料制成:
矿物油50-55
纯腰果油树脂6-8
三油酸甘油酯14-18
氢化植物油20-25
丙二醇12-18。
2.一种权利要求1所述的高透PVC润滑剂的制备方法,其特征在于该方法包括如下步骤:
①将权利要求1所述的原料按照配比投入反应釜中,搅拌下,升温至120-125℃ ;
②步骤①投料升温后的物料,在0.07-0.09MPa 压力下,继续搅拌、缓慢升温至160℃,并在160-170℃温度下,保温反应10小时,得到淡黄色或透明流动性液体;
③步骤②的反应产物降温至90℃恒温,备切片;
④步骤③的反应产物,经转鼓式冷凝结晶切片机切片,质量检验合格后,包装。
3.根据权利要求2所述的制备方法,其特征在于:步骤②中,所述的淡黄色或透明流动性液体置于微波处理器中,在微波频率为 915MHz或者2450MHz,环境温度为60~90℃条件下,微波加热处理2~3分钟。
4.根据权利要求3所述的制备方法,其特征在于:微波加热处理后得到的液体经过活性炭过滤后进入步骤③。
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