CN105419146A - Hydrotalcite lauric acid lanthanum compound environment-friendly stabilizer for PVC and preparation method thereof - Google Patents

Hydrotalcite lauric acid lanthanum compound environment-friendly stabilizer for PVC and preparation method thereof Download PDF

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Publication number
CN105419146A
CN105419146A CN201510793092.8A CN201510793092A CN105419146A CN 105419146 A CN105419146 A CN 105419146A CN 201510793092 A CN201510793092 A CN 201510793092A CN 105419146 A CN105419146 A CN 105419146A
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hydrotalcite
pvc
parts
lauric acid
acid lanthanum
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Inventor
王圣茂
丘永桂
宋开生
高旭
李毅
徐�明
肖独山
孙荣兴
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Anhui Hwasu Corp
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Anhui Hwasu Corp
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions 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
    • C08L27/02—Compositions 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
    • C08L27/04—Compositions 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
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene

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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)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention provides a hydrotalcite lauric acid lanthanum compound environment-friendly stabilizer for PVC. The hydrotalcite lauric acid lanthanum compound environment-friendly stabilizer for the PVC is prepared from, by weight, 20-30 parts of modified magnesium aluminum-hydrotalcite, 10-12 parts of butylmercaptooxo stannane, 6-9 parts of lauric acid lanthanum, 1-3 parts of triphenyl phosphite (TPP), 3-6 parts of polyethylene wax, 12-15 parts of glycerol trioleate, 5-6 parts of ditrimethylolpropane, 1-2 parts of 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)-5-chlorinated benzotriazole, 1-2 parts of rice bran wax, 2-4 parts of aluminum oxide and 6-8 parts of bauxite. The hydrotalcite lauric acid lanthanum compound environment-friendly stabilizer for the PVC is good in heat stability and processing property, friendly to the environment, free of toxin, low in cost, good in plasticizing property in the PVC processing process and capable of decreasing balance torque.

Description

A kind of PVC hydrotalcite lauric acid lanthanum composite environmental-friendly stablizer and preparation method thereof
Technical field
The present invention relates to PVC auxiliary agent field, be specifically related to a kind of PVC hydrotalcite lauric acid lanthanum composite environmental-friendly stablizer and preparation method thereof.
Background technology
PVC is generally applied in the fields such as chemical industry, material, machinery, agricultural, daily necessities with its superior physicals and cheap cost, is especially widely used at plastic applications, is called as one of five large general-purpose plastics.But PVC has a very important defect, be exactly when hot-work, easily decompose and produce HCl gas, the degraded that autocatalysis causes PVC violent, and affect the various performances of PVC product, as made the variable color of PVC product or reducing its mechanical property etc.In order to overcome this defect of PVC, mainly in the hot procedure of PVC, add appropriate stablizer at present.
The thermo-stabilizer of present widespread commercialization only has lead salts, organic tin and metal soap.And lead salt stabilizer exists toxicity and cause series of environmental problems, therefore lead salt composite thermal stabilizer is complied with trend and is born, although the usage quantity of lead salt decreases, but still exists and poisons, and eliminating of the plumbous thermo-stabilizer of cadmium has been the certainty of history.And although organotin thermostability is high, pollution hazard is little, expensive, and cost is high, and has peculiar smell, does not meet the production national conditions of China's present stage, makes it develop and be in constrained state.Metal soap thermal stabilizers effect limited capacity.
Along with the enhancing of people to environmental consciousness and the requirement to environment more and more higher, the Non-toxic of PVC stablizer is the certainty of following stablizer development.Rare earth thermal stabilizer has good thermal stability, but early stage thermostability is not high, initial coloring is poor, main stabilizer can not be done separately, it is made to apply and popularization is subject to a definite limitation, the application of single rare earth thermo-stabilizer is often difficult to the requirement meeting PVC processing and application performance, and Composite, multifunctional type rare earth thermal stabilizer have been the trend of development.Rare earth thermal stabilizer and other auxiliary agents with the use of time, can produce synergistic effect, effectively can improve thermostable effect, the over-all properties of its double matching type heat stabilizer is often better than traditional lead salt and metal soap stablizer, in some applications, rare earth composite stabilizer partly or entirely can replace organotin.China's rare earth resources enriches, and accounts for 23% of world saving.Therefore the rare earth resources making full use of China develops the distinctive performance efficiency of a kind of China, nontoxic, the low price rare earth complex heat stabilizer that meets the current production national conditions of China, realize the efficiency utilization of China's rare earth resources, have very important significance, developing PVC is efficient, nontoxic composite heat stabilizer has become must.
Summary of the invention
The invention discloses a kind of PVC hydrotalcite lauric acid lanthanum composite environmental-friendly stablizer and preparation method thereof.PVC stabilizer of the present invention has good thermostability and processing characteristics, and environment-protecting asepsis, with low cost, and in the course of processing of PVC, soffening is good and can reduce balancing torque, and light transmission is good, and cost is low.
The technical solution used in the present invention is as follows for achieving the above object:
A kind of PVC hydrotalcite lauric acid lanthanum composite environmental-friendly stablizer, it is characterized in that: it is prepared by the component raw material of following weight part and obtains: modification magnesium aluminum-hydrotalcite 20-30, butanethiol tin 10-12, lauric acid lanthanum 6-9, triphenyl phosphite TPP1-3, polyethylene wax 3-6, glycerol glycerinate 12-15, two TriMethylolPropane(TMP) 5-6,2-(the tertiary phenyl of 2'-hydroxyl-3', 5'-bis-)-5-chlorination benzotriazole 1-2, rice bran wax 1-2, aluminum oxide 2-4, bauxitic clay 6-8.
The preparation method of described PVC hydrotalcite lauric acid lanthanum composite environmental-friendly stablizer, is characterized in that, comprise the following steps:
(1) preparation of modified hydrotalcite:
A, get a certain amount of Mg (NO3) 26H2O and Al (NO3) 39H2O and be added to the water and be made into the salts solution that total mol concentration is 0.6mol/L, get a certain amount of NaOH and Na2CO3 and add in deionized water that to be made into total mol concentration be 0.6mol/L alkaline solution, by alkaline solution with 1-2 drip/s speed drops in salts solution, N 2the lower violent stirring of protection, constant temperature 38-42 DEG C, pH value remains between 9.5 ~ 10, at stirring 1-1.5h after dropwising, after 75 DEG C of crystallization 8h suction filtrations, washing is to neutral, will precipitate 45-50 DEG C of oven dry, obtain Mg/Al hydrotalcite, wherein the mol ratio of Mg (NO3) 26H2O and Al (NO3) 39H2O is the mol ratio 2:1 of 2:3, NaOH and Na2CO3, the volume ratio 1-1.2:1 of alkaline solution and salts solution during dropping;
B, toxilic acid and citric acid take according to the ratio that mol ratio is 1:1-2 and are a certain amount ofly dissolved in analytical pure ethylene glycol, after abundant mixing, add the Mg/Al hydrotalcite that step (1) is obtained, under 85-88 DEG C of constant temperature, stir 9-10h, by product suction filtration, washing, 75 DEG C of freeze-day with constant temperature 20-22h, i.e. obtained modification magnesium aluminum-hydrotalcite, the quality of described toxilic acid and the quality both citric acid and the volume ratio 0.01-0.02g/mL with ethylene glycol, Mg/Al hydrotalcite and toxilic acid and citric acid and ratio be 1:1-1.5;
(2) by formula rate, modification magnesium aluminum-hydrotalcite obtained for step (1), butanethiol tin, lauric acid lanthanum, triphenyl phosphite TPP, polyethylene wax are placed in high energy vibration equipment with the abundant vibration 45-50 minute of the rotating speed of 650-750 rev/min, vibration temperature 55-60 DEG C, obtains mixture A;
(3) add in stirring tank by glycerol glycerinate, be slowly warming up to 65-68 DEG C, add all the other components in the obtained mixture A of step (2) and formula, keep homo(io)thermism, fully stir 1.5-2.0 hour, cooling obtains one package stabilizer.
beneficial effect
One package stabilizer of the present invention is by modified hydrotalcite LDH, butanethiol tin, lauric acid lanthanum, the one package stabilizer that triphenyl phosphite TPP and other additive compound obtain, there is between raw material fine synergistic stability effect, modified hydrotalcite obviously can improve the long-term thermal stability of PVC, rare earth element has stronger ligand complex ability, with the unstable chlorine effect in PVC, thus heat stabilization is played to PVC, adding of rare-earth stabilizer can suppress Zinic stearas to PVC, " zinc burning " occur and produce metachromatism, the fusion time of PVC can be shortened simultaneously, reduce the energy consumption adding man-hour.Modified hydrotalcite, rare earth thermal stabilizer and other auxiliary agent with the use of time, synergistic effect can be produced, effectively can improve thermostable effect, the over-all properties of its double matching type heat stabilizer is better than traditional lead salt and metal soap stablizer and organotin, organotin can be replaced, reduce goods cost, this one package stabilizer is novel, compound, High-efficient Water talcum rare earth composite environmental-friendly thermo-stabilizer.
Embodiment
A kind of PVC hydrotalcite lauric acid lanthanum composite environmental-friendly stablizer, it is prepared by the component raw material of following weight (kg) and obtains: modification magnesium aluminum-hydrotalcite 27, butanethiol tin 11, lauric acid lanthanum 8, triphenyl phosphite TPP2, polyethylene wax 5, glycerol glycerinate 14, two TriMethylolPropane(TMP) 5,2-(2'-hydroxyl-3', the tertiary phenyl of 5'-bis-)-5-chlorination benzotriazole 2, rice bran wax 1, aluminum oxide 3, bauxitic clay 7
Preparation method is as follows:
(1) preparation of modified hydrotalcite:
A, get a certain amount of Mg (NO3) 26H2O and Al (NO3) 39H2O and be added to the water and be made into the salts solution that total mol concentration is 0.6mol/L, get a certain amount of NaOH and Na2CO3 and add in deionized water that to be made into total mol concentration be 0.6mol/L alkaline solution, by alkaline solution with 1-2 drip/s speed drops in salts solution, N 2the lower violent stirring of protection, constant temperature 38-42 DEG C, pH value remains on 9.8, at stirring 1.5h after dropwising, after 75 DEG C of crystallization 8h suction filtrations, washing is to neutral, by precipitation 48 DEG C oven dry, obtain Mg/Al hydrotalcite, wherein the mol ratio of Mg (NO3) 26H2O and Al (NO3) 39H2O is the mol ratio 2:1 of 2:3, NaOH and Na2CO3, the volume ratio 1:1 of alkaline solution and salts solution during dropping;
B, toxilic acid and citric acid take according to the ratio that mol ratio is 1:1-2 and are a certain amount ofly dissolved in analytical pure ethylene glycol, after abundant mixing, add the Mg/Al hydrotalcite that step (1) is obtained, under 85-88 DEG C of constant temperature, stir 10h, by product suction filtration, washing, 75 DEG C of freeze-day with constant temperature 20-22h, i.e. obtained modification magnesium aluminum-hydrotalcite, the quality of described toxilic acid and the quality both citric acid and the volume ratio 0.01g/mL with ethylene glycol, Mg/Al hydrotalcite and toxilic acid and citric acid and ratio be 1:1;
(2) by formula rate, modification magnesium aluminum-hydrotalcite obtained for step (1), dibutyl toxilic acid tin, Lanthanum Stearate, pentanedioic acid zinc, diisooctyl phenyl phosphite are placed in high energy vibration equipment with the abundant vibration of the rotating speed of 750 revs/min 45 minutes, vibration temperature 55 DEG C, obtains mixture A;
(3) add in stirring tank by dinoctyl phthalate, be slowly warming up to 65-68 DEG C, add all the other components in the obtained mixture A of step (2) and formula, keep homo(io)thermism, fully stir 2.0 hours, cooling obtains one package stabilizer.
the mensuration of thermal stability
1, static heat stability measures:
By 3.5:100 ratio of quality and the number of copies, the composite thermal stabilizer produce the present embodiment and Ga/Zn one package stabilizer add in PVC respectively, and adopt congo-red test paper method to determine static heat stability, result is as follows:
Static heat steady time of Ga/Zn one package stabilizer is 60min, composite thermal stabilizer static heat steady time that the present embodiment is produced is 125min, can find out that composite thermal stabilizer static heat stability that the present embodiment is produced obviously is better than the static heat stability of Ga/Zn one package stabilizer.
2, dynamic thermal stability measures:
Add the condition of 3.5 parts of thermo-stabilizers in 100 parts of PVC under, measure Ga/Zn one package stabilizer respectively, the dynamic thermal stability energy of the composite thermal stabilizer that the present embodiment is produced, result is: the heat-stable time of Ga/Zn one package stabilizer is 35.6min, plasticizing torque and balancing moment are 52Nm and 31.0Nm, the heat-stable time of the composite thermal stabilizer that the present embodiment is produced is 49min, plasticizing torque and balance torque drop are 45.2Nm and 22.4Nm, compared with Ga/Zn one package stabilizer, steady time obviously extends, plasticizing torque and balancing moment obviously decline, can find out that stablizer of the present invention more effectively can improve PVC dynamic thermal stability energy, reduce power consumption of polymer processing.

Claims (2)

1. a PVC hydrotalcite lauric acid lanthanum composite environmental-friendly stablizer, it is characterized in that: it is prepared by the component raw material of following weight part and obtains: modification magnesium aluminum-hydrotalcite 20-30, butanethiol tin 10-12, lauric acid lanthanum 6-9, triphenyl phosphite TPP1-3, polyethylene wax 3-6, glycerol glycerinate 12-15, two TriMethylolPropane(TMP) 5-6,2-(the tertiary phenyl of 2'-hydroxyl-3', 5'-bis-)-5-chlorination benzotriazole 1-2, rice bran wax 1-2, aluminum oxide 2-4, bauxitic clay 6-8.
2. the preparation method of PVC hydrotalcite lauric acid lanthanum composite environmental-friendly stablizer according to claim 1, is characterized in that, comprise the following steps:
(1) preparation of modified hydrotalcite:
A, get a certain amount of Mg (NO3) 26H2O and Al (NO3) 39H2O and be added to the water and be made into the salts solution that total mol concentration is 0.6mol/L, get a certain amount of NaOH and Na2CO3 and add in deionized water that to be made into total mol concentration be 0.6mol/L alkaline solution, by alkaline solution with 1-2 drip/s speed drops in salts solution, N 2the lower violent stirring of protection, constant temperature 38-42 DEG C, pH value remains between 9.5 ~ 10, at stirring 1-1.5h after dropwising, after 75 DEG C of crystallization 8h suction filtrations, washing is to neutral, will precipitate 45-50 DEG C of oven dry, obtain Mg/Al hydrotalcite, wherein the mol ratio of Mg (NO3) 26H2O and Al (NO3) 39H2O is the mol ratio 2:1 of 2:3, NaOH and Na2CO3, the volume ratio 1-1.2:1 of alkaline solution and salts solution during dropping;
B, toxilic acid and citric acid take according to the ratio that mol ratio is 1:1-2 and are a certain amount ofly dissolved in analytical pure ethylene glycol, after abundant mixing, add the Mg/Al hydrotalcite that step (1) is obtained, under 85-88 DEG C of constant temperature, stir 9-10h, by product suction filtration, washing, 75 DEG C of freeze-day with constant temperature 20-22h, i.e. obtained modification magnesium aluminum-hydrotalcite, the quality of described toxilic acid and the quality both citric acid and the volume ratio 0.01-0.02g/mL with ethylene glycol, Mg/Al hydrotalcite and toxilic acid and citric acid and ratio be 1:1-1.5;
(2) by formula rate, modification magnesium aluminum-hydrotalcite obtained for step (1), butanethiol tin, lauric acid lanthanum, triphenyl phosphite TPP, polyethylene wax are placed in high energy vibration equipment with the abundant vibration 45-50 minute of the rotating speed of 650-750 rev/min, vibration temperature 55-60 DEG C, obtains mixture A;
(3) add in stirring tank by glycerol glycerinate, be slowly warming up to 65-68 DEG C, add all the other components in the obtained mixture A of step (2) and formula, keep homo(io)thermism, fully stir 1.5-2.0 hour, cooling obtains one package stabilizer.
CN201510793092.8A 2015-11-18 2015-11-18 Hydrotalcite lauric acid lanthanum compound environment-friendly stabilizer for PVC and preparation method thereof Pending CN105419146A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1590437A (en) * 2004-04-29 2005-03-09 北京化工大学 Hgdrotalcite base chlorine containing high polymer composite heat stabilizing agent
CN102336985A (en) * 2011-07-06 2012-02-01 江南大学 Glyceryl calcium/zinc composite heat stabilizer for polyvinyl chloride
CN102516686A (en) * 2011-12-05 2012-06-27 山东慧科助剂股份有限公司 Environmentally-friendly efficient composite heat stabilizer for nanometer beta molecular sieve-based PVC (Polyvinyl Chloride) and preparation method thereof
CN103408857A (en) * 2012-12-10 2013-11-27 山东慧科助剂股份有限公司 Calcium-zinc stearate and adipic acid di-maltitol ester PVC stabilizer and manufacturing method thereof
CN104672698A (en) * 2015-01-22 2015-06-03 浙江保森新型材料有限公司 Stone and plastic composite material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1590437A (en) * 2004-04-29 2005-03-09 北京化工大学 Hgdrotalcite base chlorine containing high polymer composite heat stabilizing agent
CN102336985A (en) * 2011-07-06 2012-02-01 江南大学 Glyceryl calcium/zinc composite heat stabilizer for polyvinyl chloride
CN102516686A (en) * 2011-12-05 2012-06-27 山东慧科助剂股份有限公司 Environmentally-friendly efficient composite heat stabilizer for nanometer beta molecular sieve-based PVC (Polyvinyl Chloride) and preparation method thereof
CN103408857A (en) * 2012-12-10 2013-11-27 山东慧科助剂股份有限公司 Calcium-zinc stearate and adipic acid di-maltitol ester PVC stabilizer and manufacturing method thereof
CN104672698A (en) * 2015-01-22 2015-06-03 浙江保森新型材料有限公司 Stone and plastic composite material

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