WO2018072263A1 - 水性pvc复合热稳定剂及其制备方法 - Google Patents

水性pvc复合热稳定剂及其制备方法 Download PDF

Info

Publication number
WO2018072263A1
WO2018072263A1 PCT/CN2016/108065 CN2016108065W WO2018072263A1 WO 2018072263 A1 WO2018072263 A1 WO 2018072263A1 CN 2016108065 W CN2016108065 W CN 2016108065W WO 2018072263 A1 WO2018072263 A1 WO 2018072263A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat stabilizer
compound
composite heat
inorganic
water
Prior art date
Application number
PCT/CN2016/108065
Other languages
English (en)
French (fr)
Inventor
于跃华
高富强
邓广兴
陈强
Original Assignee
美轲(淮安)化学有限公司
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 美轲(淮安)化学有限公司 filed Critical 美轲(淮安)化学有限公司
Publication of WO2018072263A1 publication Critical patent/WO2018072263A1/zh

Links

Classifications

    • 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
    • C08K5/00Use of organic ingredients
    • C08K5/36Sulfur-, selenium-, or tellurium-containing compounds
    • 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
    • C08K5/00Use of organic ingredients
    • C08K5/56Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
    • C08K5/57Organo-tin compounds
    • C08K5/58Organo-tin compounds containing sulfur
    • 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
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K
    • 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

Definitions

  • the invention relates to the technical field of chemical industry, in particular to an aqueous PVC composite heat stabilizer and a preparation method thereof.
  • Polyvinyl chloride is one of the earliest developed thermoplastics in the world. It has excellent acid and alkali resistance, wear resistance, electrical insulation, flame retardancy, mature production process and low cost. The characteristics of easy processing and forming have become the third largest synthetic resin after polyethylene and polypropylene.
  • the one-component heat stabilizer mainly includes a metal soap heat stabilizer, a lead heat stabilizer, an organotin heat stabilizer, an organic heat stabilizer, a hydrotalcite heat stabilizer, and a metal-free heat stabilizer.
  • a mixed stabilizer composed of two or more one-component heat stabilizers or one or more one-component heat stabilizers and one or more auxiliary agents is referred to as a composite heat stabilizer.
  • Composite heat stabilizers can be divided into the following six categories due to their main components: lead-based composite heat stabilizers, zinc-based composite heat stabilizers, cadmium-based composite heat stabilizers, organotin-based composite heat stabilizers, and ruthenium Base composite heat stabilizer and organic based composite heat stabilizer.
  • the composite heat stabilizer has become the main body of commercial heat stabilizers due to its comprehensive performance balance and high cost performance.
  • the invention also discloses a butyl tin thiolate thermal stabilizer obtained by reacting butyl tin chloride with 2-mercaptoethanol.
  • the double roll plasticating test results show that the novel heat stabilizer can better inhibit the heat of PVC. Degradation, good thermal stability.
  • the above disclosed technology mainly focuses on the development of new organic heat stabilizers and the design of fat-soluble composite heat stabilizers, but is prepared for more environmentally friendly inorganic calcium, inorganic zinc, organotin compounds, mercaptans and water.
  • the research on water-based PVC composite heat stabilizer has not been reported.
  • An aqueous PVC composite heat stabilizer prepared mainly from inorganic calcium, inorganic zinc, organotin compound, mercaptan and water.
  • organotin compound is a methyl tin oxide compound
  • the inorganic ratio is in terms of a molar ratio.
  • the molar ratio between calcium, inorganic zinc, methyl tin oxide compound, mercaptan and water is 1:1:1 to 2:6 to 20:2 to 20;
  • the organotin compound is a methyl tin chloride compound
  • the molar ratio between the chlorine element, the mercaptan and the water contained in the inorganic calcium, the inorganic zinc, and the methyl tin chloride compound is 1:1: 1.5 to 2.5: 6 to 20: 2 to 20.
  • the molar ratio between the inorganic calcium, inorganic zinc, methyl tin oxide compound, mercaptan and water is from 1:1:1 to 2:6 to 10:15. 20;
  • the molar ratio of the chlorine element, the mercaptan and the water contained in the inorganic calcium, the inorganic zinc, and the methyl tin chloride compound is 1:1: 1.5 to 2.5: 6 to 10: 15 to 20.
  • the inorganic calcium is one of calcium oxide, calcium chloride, and calcium carbonate.
  • the inorganic calcium is further preferably one of calcium oxide and calcium chloride.
  • the inorganic zinc is one of zinc oxide, zinc chloride, and zinc carbonate.
  • the inorganic zinc is further preferably one of zinc oxide and zinc chloride.
  • the thiol is at least one of 2-mercaptoethanol, 3-mercapto-1-propanol, 2-methyl-2-mercaptoethanol, and 4-mercaptobutanol.
  • the thiol is further preferably at least one of 2-mercaptoethanol and 3-mercapto-1-propanol.
  • the methyl tin oxide compound is at least one of monomethyl tin oxide and dimethyl tin oxide
  • the methyl tin chloride compound is monomethyl tin trichloride. At least one of dimethyltin dichloride.
  • the invention also discloses a preparation method for preparing the above-mentioned aqueous PVC composite heat stabilizer, comprising the following steps:
  • the organotin compound is a methyl tin oxide compound
  • the above inorganic calcium, inorganic zinc, methyl tin oxide compound, mercaptan and water are mixed and reacted at a temperature of 40 to 120 ° C for 1 to 10 hours. , cooling, filtering, that is;
  • the organotin compound is a methyl tin chloride compound
  • the above inorganic calcium, inorganic zinc, methyl tin chloride compound, mercaptan and water are mixed, and 4 to 40 at a temperature of 40 to 120 ° C.
  • the lye was added dropwise at a flow rate of 10 g/min, and the pH of the reaction was adjusted to 3 to 7, and the mixture was stirred for 1 to 2 hours, cooled, and filtered.
  • the lye is one of aqueous ammonia, aqueous sodium hydroxide, and aqueous potassium hydroxide.
  • the aqueous sodium hydroxide solution is preferably a sodium hydroxide aqueous solution having a concentration of 16 to 32%.
  • the potassium hydroxide aqueous solution is preferably a potassium hydroxide aqueous solution having a concentration of 16 to 32%.
  • the reaction temperature is from 50 to 80 °C.
  • the reaction time is from 1 to 3 hours.
  • the sulfur-containing organocalcium zinc compound and the tin-containing tin thiolate obtained by reacting the hydrophilic property of the hydroxy group-containing thiol with the inorganic calcium, the inorganic zinc and the organotin compound have good water solubility, and a large amount of research is carried out. And the experimentally obtained the best ratio between the raw materials, the obtained water-based PVC composite heat stabilizer
  • the active ingredient contains sulfur, organic zinc, sulfur-containing organic calcium and base tin thiolate, and has good synergistic effect. It is suitable for rigid PVC products, not only has good stability and weather resistance, but also has low The tin content is low in cost, and the use of water as a solvent has little environmental pollution and has superior environmental protection characteristics.
  • the resulting aqueous PVC composite heat stabilizer of the present invention comprises (a) a sulfur-containing organocalcium compound; (b) a sulfur-containing organozinc compound; (c) an organotin mercaptan salt; and (d) water.
  • Zinc oxide is a product supplied by Guangzhou Chemical Reagent Factory and is analytically pure.
  • Calcium oxide is a product provided by Tianjin Yongda Chemical Reagent Co., Ltd., which is analytically pure.
  • Zinc chloride is a product provided by Guangzhou Chemical Reagent Factory and is analytically pure.
  • Calcium chloride is a product provided by Guangdong Guanghua Chemical Factory Co., Ltd., which is analytically pure.
  • Dimethyltin oxide is a product of Jiangsu Nantong Aidewang Chemical Co., Ltd., industrial grade.
  • 2-Mercaptoethanol is a product of China Petroleum & Chemical Corporation Maoming Branch, industrial grade.
  • 3-mercapto-1-propanol is a product of Hubei Xinmingtai Chemical Co., Ltd., pharmaceutical grade.
  • the mixed aqueous solution of monomethyltin trichloride and dimethyltin dichloride is supplied by Hangzhou Shengchuang Industrial Co., Ltd., industrial grade, water content is 50%, and the ratio (weight ratio) of mono-dimethyl is:
  • the content of monomethyltin trichloride is 20%-25%
  • the content of dimethyltin dichloride is 75%-80%
  • the amount of chlorine element is 17.0%-17.8%.
  • the four-necked flask is a product supplied by Sichuan Yubo (Group) Co., Ltd.
  • the agitator is an IKA-WERKE mixer.
  • the preparation method of the above aqueous PVC composite heat stabilizer comprises the following steps:
  • the preparation method of the above aqueous PVC composite heat stabilizer comprises the following steps:
  • the preparation method of the above aqueous PVC composite heat stabilizer comprises the following steps:
  • the preparation method of the above aqueous PVC composite heat stabilizer comprises the following steps:
  • the preparation method was the same as in Example 1.
  • the four different aqueous composite heat stabilizers synthesized in the above examples were designated as ##, 2#, 3# and 4#, respectively, and the aqueous composite heat stabilizer obtained by the comparative example was designated as ##.
  • the prepared aqueous composite heat stabilizer and the commercially available methyl tin heat stabilizer T181 are applied to the dynamic aging test of PVC sheets. The addition amount is 1.2%. After mixing PVC resin powder, heat stabilizer and other auxiliaries, the twin-roller mastication test is carried out at high temperature, and sampling is performed every 2 minutes at 194 ° C until all the sheets turn yellow. .
  • the chromin index b value of the two-roll mastication sample is measured, so that the heat stabilizing effect of the stabilizer can be effectively controlled.
  • the aqueous composite heat stabilizer prepared in the examples has better long-term heat stability performance than the T181, and the prepared aqueous composite stabilizer uses water as a solvent, has little environmental pollution, and has a large tin content. It is lower than the commercially available methyl tin heat stabilizer T181, which is a green and environmentally friendly PVC heat stabilizer.
  • the aqueous composite stabilizer obtained in the comparative example is not in the preferred range of the present invention, and its thermal stability deteriorates rapidly, and long-term thermal stability is poor.
  • aqueous composite heat stabilizers 1#, 2#, 3#, 4#, 5# and the commercially available butyl tin heat stabilizer T176 prepared in the examples and the comparative examples were applied to the dynamic aging test of PVC pipes, and the addition amount was 0.5. %, after mixing PVC resin powder, heat stabilizer and other auxiliaries, rheology test is carried out at high temperature, and sampling is performed every 2.5 minutes after plasticization at 190 ° C until all the sheets become black. The chromin index b value of the sample is measured, so that the heat stabilizing effect of the stabilizer can be effectively controlled. The positive value of b is expressed as beauty The yellower the color.
  • the test results are as follows:
  • the aqueous composite heat stabilizer prepared in the examples has shorter plasticizing time and better long-term heat stability performance than the T176, and the prepared aqueous composite stabilizer uses water as a solvent to pollute the environment. Small, is a green PVC heat stabilizer.
  • the aqueous composite stabilizer obtained in the comparative example is not in the preferred range of the present invention, and its thermal stability deteriorates rapidly, and long-term thermal stability is poor.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

本发明涉及一种水性PVC复合热稳定剂及其制备方法,所述水性PVC复合热稳定剂主要由无机钙、无机锌、有机锡化合物、硫醇和水制备而成,当所述有机锡化合物为甲基氧化锡类化合物,以摩尔比计,所述无机钙、无机锌、甲基氧化锡类化合物、硫醇和水之间的摩尔比为1∶1∶1~2∶6~20∶2~20;当所述有机锡化合物为甲基氯化锡类化合物,以摩尔比计,所述无机钙、无机锌、甲基氯化锡类化合物中所含氯元素、硫醇和水之间的摩尔比为1∶1∶1.5~2.5∶6~20∶2~20。本发明所得水性PVC复合热稳定剂不仅具有较好的稳定性、耐候性,且具有较低的锡含量,成本低廉,并且采用水做溶剂对环境污染小,具有优越的环保特性。

Description

水性PVC复合热稳定剂及其制备方法 技术领域
本发明涉及化工技术领域,特别是涉及一种水性PVC复合热稳定剂及其制备方法。
背景技术
聚氯乙烯(PVC)是世界上最早被开发的热塑性塑料之一,它因具有优良的耐酸碱性、耐磨性、电绝缘性好、难燃性,且生产工艺成熟、成本低、较易加工成型的特点,成为了仅次于聚乙烯、聚丙烯的第三大合成树脂。
然而,PVC在高温下加工时,会发生消除氯化氢、键断和大分子的交联,而使得PVC发生降解着色,机械性能下降,因此在加工PVC时必须使用热稳定剂。
经过多年的发展,PVC热稳定剂品种繁多,按组分复杂性的不同,可分为单组份热稳定剂和复合热稳定剂两大类。单组份热稳定剂主要包括金属皂热稳定剂、铅热稳定剂、有机锡热稳定剂、有机锑热稳定剂、水滑石类热稳定剂和无金属热稳定剂。而由两种或两种以上单组分热稳定剂或由一种以上的单组分热稳定剂和一种以上助剂组成的混合稳定剂称为复合热稳定剂。复合热稳定剂因其主效组分的不同可分为以下六大类:铅基复合热稳定剂、锌基复合热稳定剂、镉基复合热稳定剂、有机锡基复合热稳定剂、锑基复合热稳定剂和有机基复合热稳定剂。复合热稳定剂以其综合性能平衡、高性价比的特点成为了商品热稳定剂的主体。
目前,PVC热稳定剂新产品开发主要集中在新型单组分热稳定剂的研发和脂溶性复合热稳定剂的设计上。目前有技术公开了一种新型的PVC热稳定剂潜硫醇化合物。这种新型的热稳定剂不仅单独使用具有良好的热稳定性能,且跟金属皂稳定剂复配后的热稳定效果得到极大提高。还有技术公开一种含 有机锑热稳定剂、金属皂和金属碳酸盐的复合热稳定剂,实验表明这种三元复合热稳定剂的组分之间具有良好的协同作用。还有技术公开一种由丁基氯化锡和2-巯基乙醇反应得到的丁基锡硫醇盐热稳定剂,双辊塑炼测试结果表明这种新型的热稳定剂能较好的抑制PVC的热降解,热稳定性能好。
上述公开的技术主要集中在新型有机热稳定剂的开发和脂溶性复合热稳定剂的设计上,然而对于更环保的由优选配比的无机钙、无机锌、有机锡化合物、硫醇和水制备而成的水性PVC复合热稳定剂的研究还未见报道。
发明内容
基于此,有必要针对上述问题,提供一种水性PVC复合热稳定剂及其制备方法。
具体技术方案如下:
一种水性PVC复合热稳定剂,主要由无机钙、无机锌、有机锡化合物、硫醇和水制备而成,当所述有机锡化合物为甲基氧化锡类化合物,以摩尔比计,所述无机钙、无机锌、甲基氧化锡类化合物、硫醇和水之间的摩尔比为1:1:1~2:6~20:2~20;
当所述有机锡化合物为甲基氯化锡类化合物,以摩尔比计,所述无机钙、无机锌、甲基氯化锡类化合物中所含氯元素、硫醇和水之间的摩尔比为1:1:1.5~2.5:6~20:2~20。
在其中一些实施例中,以摩尔比计,所述无机钙、无机锌、甲基氧化锡类化合物、硫醇和水之间的摩尔比为1:1:1~2:6~10:15~20;所述无机钙、无机锌、甲基氯化锡类化合物中所含氯元素、硫醇和水之间的摩尔比为1:1:1.5~2.5:6~10:15~20。
在其中一些实施例中,所述无机钙为氧化钙、氯化钙、碳酸钙中的一种。
所述无机钙进一步优选为氧化钙、氯化钙中的一种。
在其中一些实施例中,所述无机锌为氧化锌、氯化锌、碳酸锌中的一种。
所述无机锌进一步优选为氧化锌、氯化锌中的一种。
在其中一些实施例中,所述硫醇为2-巯基乙醇、3-巯基-1-丙醇、2-甲基-2-巯基乙醇、4-巯基丁醇中的至少一种。
所述硫醇进一步优选为2-巯基乙醇、3-巯基-1-丙醇中的至少一种。
在其中一些实施例中,所述甲基氧化锡类化合物单甲基氧化锡和二甲基氧化锡中的至少一种,所述甲基氯化锡类化合物为单甲基三氯化锡、二甲基二氯化锡中的至少一种。
本发明还公开了一种制备上述的水性PVC复合热稳定剂的制备方法,包括以下步骤:
当所述有机锡化合物为甲基氧化锡类化合物时,将上述的无机钙、无机锌、甲基氧化锡类化合物、硫醇和水混合,在40~120℃的温度条件下反应1~10h后,冷却,过滤,即得;
当所述有机锡化合物为甲基氯化锡类化合物时,将上述的无机钙、无机锌、甲基氯化锡类化合物、硫醇和水混合,在40~120℃的温度条件下以4~10g/min的流速滴加碱液,反应终点调整pH值到3~7,保温搅拌1~2h,冷却,过滤,即得。
在其中一些实施例中,所述碱液为氨水、氢氧化钠水溶液、氢氧化钾水溶液中的一种。
上述氢氧化钠水溶液优选浓度为16~32%的氢氧化钠水溶液。
上述氢氧化钾水溶液优选浓度为16~32%的氢氧化钾水溶液。
在其中一些实施例中,所述反应温度为50~80℃。
在其中一些实施例中,当所述有机锡化合物为甲基氧化锡类化合物时,所述反应时间为1~3h。
本发明相对现有技术的优点以及有益效果为:
本发明利用含羟基硫醇的亲水特性与无机钙、无机锌和有机锡化合物反应制得的含硫有机钙锌化合物和有基锡硫醇盐均具有较好的水溶性,通过大量的研究以及实验得出原料之间的最佳配比,所得水性PVC复合热稳定剂的 有效成分含硫有机锌、含硫有机钙和有基锡硫醇盐之间具有较好的协同作用,适用于硬质PVC制品,不仅具有较好的稳定性、耐候性,且具有较低的锡含量,成本低廉,并且采用水做溶剂对环境污染小,具有优越的环保特性。
具体实施方式
为更好理解本发明,下面结合实施例对本发明做进一步详细的描述,但本发明的实施方式不限于此。
本发明最终所得水性PVC复合热稳定剂中包括(a)一种含硫有机钙化合物;(b)一种含硫有机锌化合物;(c)有机锡硫醇盐;(d)水。
本发明实施例中所用原料以及设备均为市售普通产品,其中:
氧化锌为广州化学试剂厂提供的产品,分析纯。
氧化钙为天津市永大化学试剂有限公司提供的产品,分析纯。
氯化锌为广州化学试剂厂提供的产品,分析纯。
氯化钙为广东光华化学厂有限公司提供的产品,分析纯。
二甲基氧化锡为江苏省南通艾德旺化工有限公司提供的产品,工业级。
2-巯基乙醇为中国石油化工股份有限公司茂名分公司提供的产品,工业级。
3-巯基-1-丙醇为湖北鑫鸣泰化学有限公司提供的产品,医药级。
单甲基三氯化锡和二甲基二氯化锡混合水溶液为杭州盛创实业有限公司提供的产品,工业级,水含量为50%,其中单双甲基的比例(重量比)为:单甲基三氯化锡的含量为20%-25%,二甲基二氯化锡的含量为75%-80%,氯元素的量为17.0%-17.8%。
四口烧瓶为四川蜀玻(集团)有限责任公司提供的产品。
搅拌器为IKA-WERKE搅拌器。
实施例1
一种水性PVC复合热稳定剂,由以下原料制备而成:
81.4g氧化锌、56g氧化钙、164.8g二甲基氧化锡、470.2g 2-巯基乙醇和300g水(上述氧化钙、氧化锌、二甲基氧化锡、2-巯基乙醇和水之间的摩尔比为1:1:1:6:16.7)。
上述水性PVC复合热稳定剂的制备方法包括以下步骤:
在装有搅拌器、温度计的四口烧瓶中,加入81.4g氧化锌、56g氧化钙、164.8g二甲基氧化锡、470.2g 2-巯基乙醇和300g水,在70℃下搅拌反应3h后,冷却,过滤,即得。
实施例2
一种水性PVC复合热稳定剂,由以下原料制备而成:
81.4g氧化锌、56g氧化钙、164.8g二甲基氧化锡、564g 3-巯基-1-丙醇和300g水(上述氧化钙、氧化锌、二甲基氧化锡、3-巯基-1-丙醇和水之间的摩尔比为1:1:1:6:16.7)。
上述水性PVC复合热稳定剂的制备方法包括以下步骤:
在装有搅拌器、温度计的四口烧瓶中,加入81.4g氧化锌、56g氧化钙、164.8g二甲基氧化锡、564g 3-巯基-1-丙醇和300g水,在75℃下搅拌反应3h后,冷却,过滤,即得。
实施例3
一种水性PVC复合热稳定剂,由以下原料制备而成:
68.2g氯化锌、55.5g氯化钙、204.6g单甲基三氯化锡和二甲基二氯化锡混合水溶液、234.3g 2-巯基乙醇和150g水(上述氯化钙、氯化锌、单甲基三氯化锡和二甲基二氯化锡中的氯元素、2-巯基乙醇和水之间的摩尔比为1:1:(1.95~2.05):6:16.7)。
上述水性PVC复合热稳定剂的制备方法包括以下步骤:
在装有搅拌器、温度计的四口烧瓶中,加入68.2g氯化锌、55.5g氯化钙、204.6g单甲基三氯化锡和二甲基二氯化锡混合水溶液、234.3g 2-巯基乙醇和 150g水,在50℃下搅拌反应,反应过程中以7.5g/min的流速滴加浓度为32%的氢氧化钠水溶液,反应终点调整pH值为6~6.5后再保温搅拌1h,冷却,过滤,即得。
实施例4
一种水性PVC复合热稳定剂,由以下原料制备而成:
加入40.7g氧化锌、55.5g氯化钙、204.6g单甲基三氯化锡和二甲基二氯化锡混合水溶液、276.48g 3-巯基-1-丙醇和150g水(上述氯化钙、氧化锌、单甲基三氯化锡和二甲基二氯化锡中的氯元素、3-巯基-1-丙醇和水之间的摩尔比为1:1:(1.95~2.05):6:16.7)。
上述水性PVC复合热稳定剂的制备方法包括以下步骤:
在装有搅拌器、温度计的四口烧瓶中,加入40.7g氧化锌、55.5g氯化钙、204.6g单甲基三氯化锡和二甲基二氯化锡混合水溶液、276.48g 3-巯基-1-丙醇和150g水,在55℃下搅拌反应,反应过程中以7.5g/min的流速滴加,反应终点调整pH值为6~6.5后再保温搅拌1h,冷却,过滤,即得。
对比例1
一种水性PVC复合热稳定剂,由以下原料制备而成:
162.8g氧化锌、56g氧化钙、82.4g二甲基氧化锡、470.2g 2-巯基乙醇和300g水(上述无机钙、无机锌、有机锡化合物、硫醇和水之间的摩尔比为2:1:0.5:6:16.7)。
制备方法同实施例1。
效果实验例1
将上述实施例合成得到的4种不同的水性复合热稳定剂分别记为1#、2#、3#和4#,并将对比例合成得到的水性复合热稳定剂记为5#。并将制备的水性复合热稳定剂和市售甲基锡热稳定剂T181应用到PVC片材动态老化试验中, 添加量均为1.2%,将PVC树脂粉料、热稳定剂以及其他助剂混合后,高温进行双辊机塑炼测试,在194℃下每间隔2分钟取样一次,直到所有的片材变黄。测定双辊塑炼样品的色品指数b值,这样可以很有效的对照稳定剂的热稳定效果。b值越正表现为颜色越黄,越负则表现为越蓝。其测试结果如下:
表一:水性复合热稳定剂的PVC硬质片材双辊塑炼测试
Figure PCTCN2016108065-appb-000001
从表一可知,同T181相比,实施例所制备的水性复合热稳定剂具有更优良的长期热稳定性能,且制备的水性复合稳定剂采用水作为溶剂,对环境污染小,并且锡含量大大低于市售甲基锡热稳定剂T181,节约成本,是一种绿色环保的PVC热稳定剂。而对比例所得水性复合稳定剂由于配比不在本发明优选范围内,其热稳定性退化得较快,长期热稳定性差。
效果实验例2
将实施例和对比例所制备的水性复合热稳定剂1#、2#、3#、4#、5#和市售丁基锡热稳定剂T176应用到PVC管材动态老化试验中,添加量均为0.5%,将PVC树脂粉料、热稳定剂以及其他助剂混合后,高温进行流变测试,在190℃下塑化完成后每间隔2.5分钟取样一次,直到所有的片材变黑。测定样品的色品指数b值,这样可以很有效的对照稳定剂的热稳定效果。b值越正表现为颜 色越黄。其测试结果如下:
表二:水性复合热稳定剂的PVC硬质管材流变测试
Figure PCTCN2016108065-appb-000002
从表二可知,同T176相比,实施例制备的水性复合热稳定剂具有较短的塑化时间和更优良的长期热稳定性能,且制备的水性复合稳定剂采用水作为溶剂,对环境污染小,是一种绿色环保的PVC热稳定剂。而对比例所得水性复合稳定剂由于配比不在本发明优选范围内,其热稳定性退化得较快,长期热稳定性差。
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种水性PVC复合热稳定剂,其特征在于,主要由无机钙、无机锌、有机锡化合物、硫醇和水制备而成,当所述有机锡化合物为甲基氧化锡类化合物,以摩尔比计,所述无机钙、无机锌、甲基氧化锡类化合物、硫醇和水之间的摩尔比为1:1:1~2:6~20:2~20;
    当所述有机锡化合物为甲基氯化锡类化合物,以摩尔比计,所述无机钙、无机锌、甲基氯化锡类化合物中所含氯元素、硫醇和水之间的摩尔比为1:1:1.5~2.5:6~20:2~20。
  2. 根据权利要求1所述的水性PVC复合热稳定剂,其特征在于,以摩尔比计,所述无机钙、无机锌、甲基氧化锡类化合物、硫醇和水之间的摩尔比为1:1:1~2:6~10:15~20;所述无机钙、无机锌、甲基氯化锡类化合物中所含氯元素、硫醇和水之间的摩尔比为1:1:1.5~2.5:6~10:15~20。
  3. 根据权利要求1或2所述的水性PVC复合热稳定剂,其特征在于,所述无机钙为氧化钙、氯化钙、碳酸钙中的一种。
  4. 根据权利要求1或2所述的水性PVC复合热稳定剂,其特征在于,所述无机锌为氧化锌、氯化锌、碳酸锌中的一种。
  5. 根据权利要求1或2所述的水性PVC复合热稳定剂,其特征在于,所述硫醇为2-巯基乙醇、3-巯基-1-丙醇、2-甲基-2-巯基乙醇、4-巯基丁醇中的至少一种。
  6. 根据权利要求1或2所述的水性PVC复合热稳定剂,其特征在于,所述甲基氧化锡类化合物单甲基氧化锡和二甲基氧化锡中的至少一种,所述甲基氯化锡类化合物为单甲基三氯化锡、二甲基二氯化锡中的至少一种。
  7. 一种制备权利要求1~6任一项所述的水性PVC复合热稳定剂的制备方法,其特征在于,包括以下步骤:
    当所述有机锡化合物为甲基氧化锡类化合物时,将权利要求1~6任一项 所述的无机钙、无机锌、甲基氧化锡类化合物、硫醇和水混合,在40~120℃的温度条件下反应1~10h后,冷却,过滤,即得;
    当所述有机锡化合物为甲基氯化锡类化合物时,将权利要求1~6任一项所述的无机钙、无机锌、甲基氯化锡类化合物、硫醇和水混合,在40~120℃的温度条件下以4~10g/min的流速滴加碱液,反应终点调整pH值到3~7,保温搅拌1~2h,冷却,过滤,即得。
  8. 根据权利要求7所述的水性PVC复合热稳定剂的制备方法,其特征在于,所述碱液为氨水、氢氧化钠水溶液、氢氧化钾水溶液中的一种。
  9. 根据权利要求7或8所述的水性PVC复合热稳定剂的制备方法,其特征在于,所述反应温度为50~80℃。
  10. 根据权利要求7或8所述的水性PVC复合热稳定剂的制备方法,其特征在于,当所述有机锡化合物为甲基氧化锡类化合物时,所述反应时间为1~3h。
PCT/CN2016/108065 2016-10-17 2016-11-30 水性pvc复合热稳定剂及其制备方法 WO2018072263A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610903577.2 2016-10-17
CN201610903577.2A CN106633480B (zh) 2016-10-17 2016-10-17 水性pvc复合热稳定剂及其制备方法

Publications (1)

Publication Number Publication Date
WO2018072263A1 true WO2018072263A1 (zh) 2018-04-26

Family

ID=58855877

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/108065 WO2018072263A1 (zh) 2016-10-17 2016-11-30 水性pvc复合热稳定剂及其制备方法

Country Status (2)

Country Link
CN (1) CN106633480B (zh)
WO (1) WO2018072263A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111807944A (zh) * 2020-08-14 2020-10-23 安徽大学 一种pvc热稳定剂锡掺杂乙酰丙酮镧的制备方法
CN112175312A (zh) * 2020-09-03 2021-01-05 临海伟星新型建材有限公司 一种应用于透明pvc硬制品的环保稳定剂
CN113201175A (zh) * 2021-04-26 2021-08-03 徐州工业职业技术学院 一种高填充精细丁腈胶粉/聚氯乙烯热塑性弹性体的制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108912021A (zh) * 2018-08-08 2018-11-30 美轲(广州)化学股份有限公司 烷基硫醇锌的制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101921405A (zh) * 2010-08-17 2010-12-22 浙江海普顿化工科技有限公司 一种甲基锡复合热稳定剂及其制备方法
US20120189794A1 (en) * 2011-01-26 2012-07-26 Development Llc Compositions and methods for protection of reinforced concrete
CN103102632A (zh) * 2013-01-25 2013-05-15 江苏理工学院 氯化聚氯乙烯改性材料及其制备方法
CN104761751A (zh) * 2015-03-31 2015-07-08 绍兴宏润消防器材有限公司 含锌金属皂热稳定剂及包含它的pvc组合物
CN105218973A (zh) * 2015-10-13 2016-01-06 云南锡业股份有限公司 一种高效复合聚氯乙烯热稳定剂及其制作方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050101716A1 (en) * 2003-11-12 2005-05-12 Ilze Bacaloglu Liquid microemulsion stabilizer composition for halogen-containing polymers
US7781504B2 (en) * 2006-12-05 2010-08-24 Galata Chemicals, Llc Alkyltin sulfanyl diester thiols
CN101456977B (zh) * 2008-12-16 2010-12-15 浙江传化华洋化工有限公司 钙锌复合热稳定剂的制备方法
CN101440173B (zh) * 2008-12-23 2011-08-31 南京工业大学 用于含氯聚合物热稳定体系的含硫锌皂组合物及其制备方法
CN104629208A (zh) * 2013-11-14 2015-05-20 湖北南星化工总厂 一种复合固体甲基锡类pvc热稳定剂及其制备方法
CN103709446A (zh) * 2013-12-16 2014-04-09 浙江海普顿新材料股份有限公司 一种固体甲基锡复合热稳定剂及其制备方法和应用
CN105175929B (zh) * 2015-06-03 2018-05-15 芜湖友信激光模具有限公司 一种耐热耐腐蚀编织袋
CN105837970B (zh) * 2016-03-31 2018-06-15 青岛百瑞吉生物工程有限公司 一种气管插管用聚氯乙烯材料的制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101921405A (zh) * 2010-08-17 2010-12-22 浙江海普顿化工科技有限公司 一种甲基锡复合热稳定剂及其制备方法
US20120189794A1 (en) * 2011-01-26 2012-07-26 Development Llc Compositions and methods for protection of reinforced concrete
CN103102632A (zh) * 2013-01-25 2013-05-15 江苏理工学院 氯化聚氯乙烯改性材料及其制备方法
CN104761751A (zh) * 2015-03-31 2015-07-08 绍兴宏润消防器材有限公司 含锌金属皂热稳定剂及包含它的pvc组合物
CN105218973A (zh) * 2015-10-13 2016-01-06 云南锡业股份有限公司 一种高效复合聚氯乙烯热稳定剂及其制作方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111807944A (zh) * 2020-08-14 2020-10-23 安徽大学 一种pvc热稳定剂锡掺杂乙酰丙酮镧的制备方法
CN111807944B (zh) * 2020-08-14 2022-08-30 安徽大学 一种pvc热稳定剂锡掺杂乙酰丙酮镧的制备方法
CN112175312A (zh) * 2020-09-03 2021-01-05 临海伟星新型建材有限公司 一种应用于透明pvc硬制品的环保稳定剂
CN113201175A (zh) * 2021-04-26 2021-08-03 徐州工业职业技术学院 一种高填充精细丁腈胶粉/聚氯乙烯热塑性弹性体的制备方法

Also Published As

Publication number Publication date
CN106633480B (zh) 2019-04-30
CN106633480A (zh) 2017-05-10

Similar Documents

Publication Publication Date Title
WO2018072263A1 (zh) 水性pvc复合热稳定剂及其制备方法
CN102432961B (zh) 一种pvc用复合热稳定剂及其制备方法
CN106633183B (zh) 多硫醚pvc助稳定剂及其制备方法与应用
WO2017024608A1 (zh) 一种尼龙耐候助剂的制备方法
CN103589101A (zh) 环保阻燃耐低温风能电缆用氯化聚乙烯橡胶及制备方法
CN106316905B (zh) 一种一硫化四苄基秋兰姆及其制备方法和应用
CN105885288B (zh) 一种用于聚氯乙烯的辅助热稳定剂及其制备方法
WO2014063983A1 (de) Polysulfidmischungen, verfahren zu ihrer herstellung und verwendung der polysulfidmischungen in kautschukmischungen
EP2550239B1 (de) Verfahren zur herstellung von chrom(iii)-oxid
WO2018170950A1 (zh) 聚苯硫醚树脂的生产方法及其精馏残液的回收方法
CN106221021A (zh) 一种阻燃改性tpo防水卷材及其制备方法
CN110330468A (zh) 一种4,4’-二硫代二吗啉的合成方法
CN106366514A (zh) 一种新型环保pvc异型材专用氰脲酸复合稳定剂的制备与应用
CN105936680A (zh) 一种稀土配合物及其制备方法和应用
CN105602147A (zh) 一种防腐稳定抗老化塑料板材
DE102013018546A1 (de) Reifenelement und Verfahren für dessen Herstellung
CN101100461B (zh) 含卤聚合物硫化交联用噻二唑衍生物及其合成方法
CN103952000A (zh) 钙锌复合稳定剂及其制备方法
CN109553638B (zh) 一种酯基硫醇有机锡的制备方法
DE3610794C2 (de) N,N'-substituierte Bis-(2,4-diamino-s-triazin-6-yl)-Tetrasulfide, Verfahren zu ihrer Herstellung und ihre Verwendung in vulkanisierbaren Kautschukmischungen
CA3110811A1 (en) Low free 2-mercaptoethanol ester and uses thereof
KR102037196B1 (ko) 유기물 티오황산염의 제조 방법
CN108299677A (zh) 一种新型橡胶防焦剂及其制备工艺
CN103254520B (zh) 化学改性的氯化聚乙烯与不饱和橡胶的橡胶组合物及其制备方法
CN106188144A (zh) 一种液态有机锡锑化合物及其制备方法和应用

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16919067

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16919067

Country of ref document: EP

Kind code of ref document: A1