CN106543476B - A kind of composite material and preparation method for PVC heat stabilizer - Google Patents
A kind of composite material and preparation method for PVC heat stabilizer Download PDFInfo
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- CN106543476B CN106543476B CN201611120533.9A CN201611120533A CN106543476B CN 106543476 B CN106543476 B CN 106543476B CN 201611120533 A CN201611120533 A CN 201611120533A CN 106543476 B CN106543476 B CN 106543476B
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- hydrotalcite
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- hanggin
- soil
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of advanced composite material (ACM)s for PVC heat stabilizer.The present invention utilizes rich reserves, cheap Hanggin 2#Soil and self-control hydrotalcite are raw material, are prepared for advanced composite material (ACM) Hanggin 2 using the method that silane coupling agent is grafted#Soil/hydrotalcite is used for working well in PVC heat stabilizer.Composite material of the present invention is due to using cheap Hanggin 2#Soil is raw material, declines production cost, but its performance is better than import borax hydrotalcite.
Description
Technical field
The present invention relates to PVC heat stabilizer fields, concretely relate to a kind of composite material for PVC heat stabilizer
And preparation method thereof.
Background technique
Hanggin 2#Soil is a kind of natural clay mineral for originating in Inner Mongol Hangjin Rear Banner, and the mineral deposits are abundant, is easy to out
It adopts, cheap, main component includes attapulgite, illite, chlorite, feldspar, calcite and rare earth element etc..The mine
Object has layer structure, and acid-modified metapore holds, specific surface area increases, and has very strong ion exchangeable, adsorptivity and decoloration
Performance.Currently, Hanggin 2#Soil is mainly used in adsorbent material, decolorising agent, water-permeable brick, catalyst and carrier, and there are no in PVC heat
The document report applied in terms of stabilizer.
Hydrotalcite-based compound (LDHs) is a kind of anionic compound with layer structure, and Japan is in 20th century 70
Age has the report of the heat stabilizer by hydrotalcite as PVC, has carried out application study after the 1980s successively, finds
Hydrotalcite-based compound is a kind of heat stabilizer auxiliary agent that long-term thermal stability is excellent, and big with zinc stearate, beta-diketon, epoxy
Soya-bean oil etc. has good synergistic effect, and is to inhibit " zinc burning ", extend rare heat stabilizer kind of Congo red time it
One.In addition, the Mg and Al in hydrotalcite structure are non-heavy metal element, D50 > 10000mg/kg belongs to practical non-poisonous material
Matter is allowed for contacting the plastic material and product of food by European Union, and FDA permits the PVC plastic system for contacting with food
Product.According to standard GB/T 9685-2008, hydrotalcite can need to be used for plastic food container, packing timber in right amount according to production
Material.With the raising and the propulsion of taboo lead requirement comprehensively of environmental requirement, hydrotalcite-based compound great hair in PVC heat stabilizer
Exhibition prospect.
However, surface can greatly, and easily formation hydrogen bond generates soft-agglomerated due to neatly stone veneer active group-OH, with
Water of coordination molecule condensation generates hard aggregation, so that its dispersibility in organic matter matrix is affected, it is affine with organic material
Property is poor.When domestic hydrotalcite is used as PVC heat stabilizer, initial coloration is serious, and high-quality hydrotalcite often relies on import, price
It is expensive.
There are no about Hanggin 2 in document at present#The report of/hydrotalcite composite material.
Summary of the invention
The object of the present invention is to provide a kind of composite material for PVC heat stabilizer, which can replace mesh
Hydrotalcite in preceding PVC heat stabilizer has the advantages that stability height and at low cost.
Composite material of the present invention for PVC heat stabilizer, it is prepared by the following method:
A. by the solid-to-liquid ratio of 1g/4ml by Hanggin 2#Soil is closed with the acid-mixed that mass fraction is 5-25%, permanent at 60-120 DEG C
Warm return stirring 0.5-4 hours, cooling, filtering, Washing of Filter Cake to neutrality, atlapulgite was made in drying, crushing；
B., the resulting atlapulgite of step A and deionized water are made into 5~30% suspension, and are added 0.01~5%
The surfactant of atlapulgite mass fraction, return stirring 3 hours, are then slowly added into 0.1~10% at 60~120 DEG C
The first slurries are made in the silane coupling agent of atlapulgite mass fraction, and return stirring a few hours；
C., hydrotalcite and deionized water be made into 5~30% suspension, return stirring 1 hour at 60~120 DEG C, so
It is slowly added to the silane coupling agent of 1~10% hydrotalcite mass fraction, and return stirring a few hours afterwards, the second slurries are made；
D. first slurries are mixed with the second slurries, the pH of mixed serum is adjusted to 8-11 with sodium hydroxide, in 100
It is stirred a few hours at~180 DEG C, cooling, washing, filtration cakes torrefaction crushes to get Hanggin 2#Soil/hydrotalcite complex.
Preferably, in the step A, the acid is to be selected from: at least one of hydrochloric acid, sulfuric acid, phosphoric acid, pyrophosphoric acid.
Preferably, in the step B, the surfactant is to be selected from: Arlacel-20, Arlacel-60, Arlacel-80, stearic
It is sour sodium, enuatrol, neopelex, dodecyl sodium sulfate, at least one kind of in glycerin monostearate.
Preferably, in the step B and C, the silane coupling agent is to be selected from: diethoxy silane, triethoxysilane,
At least one of dimethoxysilane, trimethoxy silane.
Preferably, the dosage of atlapulgite and the mass ratio of the dosage of hydrotalcite in the step C are 1 in the step B:
1~50.
Composite material of the present invention for PVC heat stabilizer has the characteristics that and advantage:
(1) it is reacted using the silane of more reactive groups with active group-OH on neatly stone veneer, reduces the surface of hydrotalcite
Can, improve its compatibility with PVC.Therefore, there is preferable initial coloration when composite material is in PVC heat stabilizer
Property.
(2) low-kappa number Hanggin 2 is used#Atlapulgite is made in soil, reduces iron content, while increasing Hanggin 2#The ratio of soil
Surface area.Therefore, the thermal stability with higher when composite material is in PVC heat stabilizer.
(3) using the Silane Grafted atlapulgite of more reactive groups；Then, the silane of hydrotalcite surface grafting and activity are white
The silane condensation of soil grafting, is made Hanggin 2#Soil/hydrotalcite complex.The hydroxyl of hydrotalcite surface can be effectively reduced in this way, dropped
Low-surface-energy improves its compatibility with PVC.Therefore, by Hanggin 2 of the invention#Soil/hydrotalcite complex is added to PVC heat
In stabilizer, PVC heat stabilizer formula can be solved because hydrotalcite is used alone and have the shortcomings that initial coloring is bad.
(4) due to Hanggin 2#Contain rare earth element in native raw material, causes to contain part in composite material of the present invention
Rare earth element, so that the initial stage whiteness of PVC product is preferable.
(5) the roasting piece color change results of static heat stability experiment are shown: being used for using composite material prepared by the present invention
In PVC heat stabilizer, the discoloration for baking piece is most slow；Congo Red test result obtains, using composite wood prepared by the present invention
Material is used for PVC heat stabilizer, Congo red time longest.It is above-mentioned the experimental results showed that the heat of prepared composite material of the invention is steady
It is qualitative to be better than import borax hydrotalcite.
(6) composite material of the present invention not only remains the layer structure of hydrotalcite, the carbonate of hydrotalcite layers
The hydrogen chloride that can be decomposited with PVC swaps, while further increasing Hanggin 2#The specific surface area of soil is easy to absorb PVC
The hydrogen chloride come is decomposited, the synergistic effect of the two further increases the thermal stability of PVC, extends the Congo red time.
(7) present invention utilizes cheap Hanggin 2#Soil prepares Hanggin 2#Soil/hydrotalcite composite material, not only obtains
Excellent thermal stability, also significantly reduces production cost.
Detailed description of the invention
Fig. 1 is XRD diagram (X-ray diffractogram) of the composite material prepared by the present invention compared with raw material.
Fig. 2 is the static heat stability experiment and Congo Red test result of different samples.
Specific embodiment
The present invention is described in further details below by embodiment, these embodiments are only used to illustrate the present invention, and
It does not limit the scope of the invention.
Embodiment 1: Hanggin 2#The preparation of soil/hydrotalcite complex
Weigh 200g Hanggin 2#Soil, addition 800ml mass fraction are 15% hydrochloric acid, and constant temperature return stirring 2 is small at 80 DEG C
When, cooling, filtering, Washing of Filter Cake to neutrality, dry, crushing, obtained atlapulgite L1.The XRD diagram of resulting atlapulgite is joined
See Fig. 1.
5.0g atlapulgite L1 is weighed, 50ml deionized water is added, 0.050g Arlacel-60, return stirring 3 is small at 90 DEG C
When, 0.25g dimethyl diethoxysilane, and return stirring 4 hours are then slowly added into, slurries M1 is made.
50.0g hydrotalcite is weighed, 375ml deionized water is added, return stirring 1 hour, is then slowly added at 90 DEG C
2.5g dimethyldimethoxysil,ne, and return stirring 3 hours, slurries N1 is made.
Slurries M1 and slurries N1 mixing, and the pH of mixed serum is adjusted to 10 with sodium hydroxide, it is small that 3 are stirred at 150 DEG C
When, cooling, washing, filtration cakes torrefaction crushes to get Hanggin 2#Soil/hydrotalcite complex G1.In the compound, hydrotalcite: carclazyte
=10:1, XRD diagram is referring to Fig. 1.
Embodiment 2: Hanggin 2#The preparation of soil/hydrotalcite complex
Weigh 100g Hanggin 2#Soil, addition 400ml mass fraction are 20% sulfuric acid, and constant temperature return stirring 4 is small at 95 DEG C
When, cooling, filtering, Washing of Filter Cake to neutrality, dry, crushing, obtained atlapulgite L2.
It weighs 10.0g atlapulgite L2, is added 60ml deionized water, 0.050g stearic acid benzene sulfonic acid sodium salt, next time at 80 DEG C
Stream stirring 3 hours, is then slowly added into 1.0g octyl trimethoxy silane, and return stirring 3 hours, and slurries M2 is made.
50.0g hydrotalcite is weighed, 350ml deionized water is added, return stirring 1 hour, is then slowly added at 80 DEG C
1.50g octyl trimethoxy silane, and return stirring 3 hours, slurries N2 is made.
Slurries M2 and slurries N2 mixing, and the pH of mixed serum is adjusted to 11 with sodium hydroxide, it is small that 4 are stirred at 120 DEG C
When, cooling, washing, filtration cakes torrefaction crushes to get Hanggin 2#Soil/hydrotalcite complex G2.In the compound, hydrotalcite: activity
Carclazyte=10:2, XRD diagram is referring to Fig. 1.
Embodiment 3: Hanggin 2#The preparation of soil/hydrotalcite complex
Weigh 150g Hanggin 2#Soil, it is 12% pyrophosphoric acid acid that 600ml mass fraction, which is added, and constant temperature reflux is stirred at 105 DEG C
It mixes 1.5 hours, cooling, filtering, Washing of Filter Cake to neutrality, atlapulgite L3 is made in dry, crushing.
7.0g atlapulgite L3 is weighed, 40ml deionized water is added, 0.14g glycerin monostearate flows back at 100 DEG C
Stirring 3 hours, is then slowly added into 0.49g diethyldimethoxysilane, and return stirring 2.5 hours, and slurries M3 is made.
50g hydrotalcite is weighed, 350ml deionized water is added, return stirring 1 hour, is then slowly added at 100 DEG C
3.5g diethyldimethoxysilane, and return stirring 2.5 hours, slurries N3 is made.
Slurries M3 and slurries N3 mixing, and the pH of mixed serum is adjusted to 9 with sodium hydroxide, it is small that 3.5 are stirred at 140 DEG C
When, cooling, washing, filtration cakes torrefaction crushes to get Hanggin 2#Soil/hydrotalcite complex G3.
The preparation and performance test of embodiment 4:PVC heat stabilizer
By 1 gained atlapulgite of above-described embodiment, Hanggin 2#Soil/hydrotalcite complex is compounded by formula as below, for quiet
State thermal stability, Congo red time test, as a result as shown in following table and Fig. 2.
Note: basic material 344 includes zinc stearate, beta-diketon, antioxidant, lubricant etc..
Static heat stability experiment:
According to GB/T 9349-2002, by upper table ingredient, after sufficiently mixing, on the double roll mill in 170 DEG C of temperature
It is kneaded 5min, the thin slice with a thickness of 1.0mm is pulled into, growth sample piece is cut after cooling.It is (186 ± 1) that print, which is placed in temperature,
DEG C thermal ageing test case in carry out static thermal ageing test, take out the variation of 1 small print observation color every 10min.Root
Thermal stability is judged according to color change situation.
Congo Red test:
According to the method that standard GB/T 2917.1-2002 is provided, sheet print is cut into small that side length is about 1mm
Grain, is fitted into test tube, is packed into short grained height about 5cm, be put into Congored test paper thereon, and be stoppered test tube with plug, immerses
In 210 DEG C of oil bath.It records and slightly becomes blue required time, as Congo red time from test tube insertion oil bath to test paper color
(Congo red time longer expression stability is better), unit is indicated with min, and each sample measures 3 times, is averaged.It is Congo red
Time is longer, and expression thermal stability is better.
Thermal stability is judged according to print discoloration and Congo red time.It is as shown in Figure 2: only to add heat stabilizer base
The A sample initial stage whiteness of this material is preferable, but long-term thermal stability is poor；Heat stabilizer is added to expect substantially and the B- of atlapulgite
2 sample initial stage whiteness are substantially unchanged, and long-term thermal stability improves；It is added to heat stabilizer and expects and make by oneself water substantially
The H-2 sample initial stage whiteness of talcum is poor, but long-term thermal stability is preferable；Heat stabilizer is added to expect substantially and South Korea's borax water
The initial stage whiteness and long-term thermal stability of the D-2 sample of talcum are better than H-2 sample；And be added to heat stabilizer expect substantially and
The performance of complex activity carclazyte/hydrotalcite (1:10) F-2 sample is best, and initial stage whiteness and long-term thermal stability are more than
D-2 and H-2 sample.
Conclusion: with cheap Hanggin 2#Soil and self-control hydrotalcite are raw material, the method being grafted using silane coupling agent
It is prepared for advanced composite material (ACM) Hanggin 2#Soil/hydrotalcite, thermal stability with higher when being used in PVC heat stabilizer.
Claims (4)
1. a kind of composite material for PVC heat stabilizer, which is characterized in that the composite material is to make by the following method
Standby:
A. by the solid-to-liquid ratio of 1g/4ml by Hanggin 2#Soil is closed with the acid-mixed that mass fraction is 5-25%, and constant temperature returns at 60-120 DEG C
Stream stirring 0.5-4 hours, cooling, filtering, Washing of Filter Cake to neutrality, drying crush, and atlapulgite is made；
B., the resulting atlapulgite of step A and deionized water are made into 5~30% suspension, and 0.01~5% activity is added
The surfactant of carclazyte mass fraction, return stirring 3 hours at 60~120 DEG C are then slowly added into 0.1~10% activity
The first slurries are made in the silane coupling agent of carclazyte mass fraction, and return stirring a few hours；
C., hydrotalcite and deionized water are made into 5~30% suspension, return stirring 1 hour, then delays at 60~120 DEG C
The slow silane coupling agent that 1~10% hydrotalcite mass fraction is added, and return stirring a few hours, are made the second slurries；
D. first slurries are mixed with the second slurries, the pH of mixed serum is adjusted to 8-11 with sodium hydroxide, in 100~
It is stirred a few hours at 180 DEG C, cooling, washing, filtration cakes torrefaction crushes to get Hanggin 2#Soil/hydrotalcite complex.
2. composite material according to claim 1, it is characterised in that: in the step A, the acid is to be selected from: hydrochloric acid, sulphur
At least one of acid, phosphoric acid, pyrophosphoric acid.
3. composite material according to claim 1, it is characterised in that: in the step B, the surfactant is choosing
From: Arlacel-20, Arlacel-60, Arlacel-80, odium stearate, enuatrol, neopelex, dodecyl sodium sulfate, list
It is at least one kind of in tristerin.
4. composite material according to claim 1, it is characterised in that: in the step B dosage of atlapulgite with it is described
The mass ratio of the dosage of hydrotalcite is 1:1~50 in step C.
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| CN109627891B (en) * | 2018-12-25 | 2021-04-30 | 肇庆学院 | Coating containing hydrotalcite-attapulgite composite and preparation method thereof |
| CN110105694B (en) * | 2019-06-03 | 2021-04-02 | 肇庆学院 | Special PVC stabilizer and preparation method and application thereof |
| CN110092387B (en) * | 2019-06-20 | 2021-01-12 | 肇庆学院 | Hydrotalcite-like compound composite material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274994A (en) * | 2007-03-28 | 2008-10-01 | 株式会社艾迪科 | Stabilizing agent compound for koroseal |
| CN101618875A (en) * | 2009-06-19 | 2010-01-06 | 中国科学院化学研究所 | Method for extracting high specific surface area silicon dioxide by Hanggin No.2 soil |
| CN103483654A (en) * | 2013-09-22 | 2014-01-01 | 苏州市湘园特种精细化工有限公司 | Reprocessing method for recycling and reusing flame-retardant rubber |
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- 2016-12-08 CN CN201611120533.9A patent/CN106543476B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274994A (en) * | 2007-03-28 | 2008-10-01 | 株式会社艾迪科 | Stabilizing agent compound for koroseal |
| CN101618875A (en) * | 2009-06-19 | 2010-01-06 | 中国科学院化学研究所 | Method for extracting high specific surface area silicon dioxide by Hanggin No.2 soil |
| CN103483654A (en) * | 2013-09-22 | 2014-01-01 | 苏州市湘园特种精细化工有限公司 | Reprocessing method for recycling and reusing flame-retardant rubber |
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Application publication date: 20170329 Assignee: ZHONGSHAN HUAMINGTAI TECHNOLOGY Co.,Ltd. Assignor: ZHAOQING University Contract record no.: X2020440000046 Denomination of invention: Composite material used for PVC heat stabilizers, and preparation method thereof Granted publication date: 20190104 License type: Exclusive License Record date: 20200320 |
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