CN108467555A - A kind of anti-aging PVC material and preparation method thereof - Google Patents
A kind of anti-aging PVC material and preparation method thereof Download PDFInfo
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- CN108467555A CN108467555A CN201810299374.6A CN201810299374A CN108467555A CN 108467555 A CN108467555 A CN 108467555A CN 201810299374 A CN201810299374 A CN 201810299374A CN 108467555 A CN108467555 A CN 108467555A
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- C—CHEMISTRY; METALLURGY
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- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
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- C08K7/00—Use of ingredients characterised by shape
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- C—CHEMISTRY; METALLURGY
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Abstract
The invention discloses a kind of anti-aging PVC materials and preparation method thereof, which is made of the component of following parts by weight：100 150 parts by weight of PVC, 30 50 parts by weight of dioctyl terephthalate, 0.2 0.5 parts by weight of zinc stearate, 0.2 0.5 parts by weight of calcium stearate, modified 0.6 1 parts by weight of 4A zeolites.Preparation method includes the following steps：Each component is added to high-speed mixer according to the ratio to be stirred, mixing speed 1200rpm 1500rpm wait for that material is warming up to 90 120 DEG C, material are put to cold mixer, mixing speed 100rpm 200rpm, logical cooling water makes material be cooled to 50 DEG C or less.In the case where not influencing other comprehensive performances such as anti-flammability, ageing resistance and thermal stability significantly increase PVC material of the present invention, at low cost, and preparation method is simple, especially suitable for industrialized production.
Description
Technical field
The invention belongs to chemical technology field, it is related to a kind of anti-aging PVC material and preparation method thereof.
Background technology
Polyvinyl chloride, English abbreviation PVC (Polyvinyl chloride) are vinyl chloride monomer (vinyl chloride
Monomer, abbreviation VCM) in initiators such as peroxide, azo-compounds；Or Raolical polymerizable is pressed under light, heat effect
The polymer that mechanism is polymerized.Ryuron and vinyl chloride copolymer system are referred to as vinyl chloride resin.
PVC is the white powder of impalpable structure, and the degree of branching is smaller, relative density 1.4 or so, glass transition temperature 77~90
DEG C, 170 DEG C or so start to decompose, poor to the stability of light and heat, in 100 DEG C or more or through a long time exposure in sunshine, Jiu Huifen
It solves and generates hydrogen chloride, and further autocatalysis is decomposed, and causes to change colour, physical mechanical property also declines rapidly, is actually answering
Stabilizer be must be added in improve the stability to light and heat.
At present when carrying out PVC material processing, need addition age resister to enhance its anti-aging property, it is conventional use of
Age resister has hydrotalcite, and dosage is 10% or more.But the drop that antiager sometimes results in other performances is added in PVC material
It is low, and hydrotalcite higher price, sexual valence are poor.
Invention content
The present invention overcomes above-mentioned shortcoming, provides that a kind of comprehensive performance is strong, and at low cost, preparation method is simple, especially
It can also be with the PVC material of anti-aging property it is not necessary that age resister is additionally added.
The purpose of the present invention is what is be accomplished by the following way：
A kind of anti-aging PVC material, the material are made of the component of following parts by weight：
PVC 100-150 parts by weight
Dioctyl terephthalate 30-50 parts by weight
Zinc stearate 0.2-0.5 parts by weight
Calcium stearate 0.2-0.5 parts by weight
Modified 4A zeolite 0.6-1 parts by weight.
It is preferred that above-mentioned material is made of the component of following parts by weight：
100 parts by weight of PVC
50 parts by weight of dioctyl terephthalate
Zinc stearate 0.3-0.4 parts by weight
Calcium stearate 0.3-0.4 parts by weight
Modified 4A zeolite 0.6-0.8 parts by weight.
The modification 4A zeolites used in above-mentioned PVC material be perchloric acid is slowly equably sprayed onto to 4A zeolite surfaces, and
Stirring while adding, perchloric acid is reacted with 4A zeolites, and the weight ratio of perchloric acid and 4A zeolites is 1：5-20, preferably perchloric acid and 4A
The weight ratio of zeolite is 1：10-15.The reaction time is 0.5-1h.The reaction temperature is not higher than 50 DEG C.Institute
The mixing speed stated is 30rpm-50rpm.
The preparation method of above-mentioned anti-aging PVC material, this approach includes the following steps
Each component is added to high-speed mixer according to the ratio to be stirred, mixing speed 1200rpm-1500rpm waits for material
It is warming up to 90-120 DEG C, material is put to cold mixer, mixing speed 100rpm-200rpm, logical cooling water makes material be cooled to 50
DEG C or less.
4A zeolites are a kind of chemical substance, molecular formula Na12Al12Si12O48·27H2O, network-like structure include
Even aperture, aperture 0.42nm, specific surface area are about 600m2/R, and not soluble in water and organic solvent can be dissolved in highly basic and strong acid.
When being heated beyond 800 DEG C, the structure to form cristobalite shape is recrystallized.Typically a kind of nontoxic, odorless, tasteless and mobility compared with
Good white powder, is ideal adsorbent and drier.It is commonly used for the auxiliary agent of non-phosphate detergent, instead of sodium tripolyphosphate；
Oil and other industry are used as drying, the dewatered clean etc. of gas and liquid, also serve as catalyst and water softener.In PVC material
Middle main function is the hydrogen chloride for absorbing PVC degradations and releasing.The present invention is that a certain amount of perchloric acid is slow in modified zeolite
4A zeolite surfaces are equably sprayed onto, generating chemical reaction with 4A zeolites generates a small amount of sodium perchlorate and aluminum perchlorate, on a small quantity
Sodium perchlorate and aluminum perchlorate are adsorbed on zeolite surface and generate modified effect, and modification 4A zeolites are applied to PVC material processing
In, its anti-aging and thermal stability can be significantly increased on the basis of not influencing other performances of PVC material.
Beneficial effects of the present invention compared with the prior art：Not influencing anti-flammability etc., other are integrated PVC material of the present invention
In the case of performance, ageing resistance and thermal stability significantly increase, and at low cost, and preparation method is simple, especially suitable for
Industrialized production.
Specific implementation mode
Explanation is further expalined to the present invention below by way of specific embodiment：
Embodiment 1
It is PVC S-65 (degree of polymerization 1000~1100) 100 parts by weight, 50 parts by weight of DOTP (dioctyl terephthalate), hard
0.4 parts by weight of resin acid zinc, 0.4 parts by weight of calcium stearate, modified 0.6 parts by weight of 4A zeolites (are changed according to 1 method of embodiment
Property).
Preparation method：
Each component is added to high-speed mixer according to the ratio to be stirred, mixing speed 1200rpm waits for that material is warming up to
100 DEG C, material is put to cold mixer, mixing speed 200rpm, logical cooling water makes material be cooled to 50 DEG C hereinafter, spare.It is modified
The preparation method of 4A zeolites：
1. being added to 10kg perchloric acid in the pressurized tank A with cooling system, controls temperature in A tanks and be less than 20 DEG C, add to A tanks
Pressure makes it keep 3kg pressure；
2. being added to 100kg4A zeolites in the reaction kettle B with sieve ribbon agitator, stirring is opened, mixing speed control exists
Between 30rpm-50rpm, sieve ribbon blender can generate three-dimensional hybrid effect, no dead angle；
3. opening A tank outlet valves, perchloric acid is equably sprayed onto on the zeolite in B reaction kettles by No. 3 nozzles, is controlled
Between 30rpm-50rpm, the temperature (being less than 50 DEG C) of control reaction kettle B drops mixing speed when temperature in the kettle is more than 50 DEG C
The cooling system that low mixing speed opens reaction kettle B simultaneously makes its temperature be less than 50 DEG C；After perchloric acid is sprayed, continue to stir
It mixes 20 minutes；About 50 minutes reaction time.
Comparative example 1
It is PVC S-65 (degree of polymerization 1000~1100) 100 parts by weight, 50 parts by weight of DOTP (dioctyl terephthalate), hard
0.4 parts by weight of resin acid zinc, 0.4 parts by weight of calcium stearate, common 0.6 parts by weight of 4A zeolites, are added to height by each component according to the ratio
Fast mixing machine is stirred, mixing speed 1200rpm, waits for that material is warming up to 100 DEG C, and material is put to cold mixer, mixing speed
200rpm, logical cooling water make material be cooled to 50 DEG C hereinafter, spare.
Comparative example 1 and 1 material of embodiment are processed film-making, condition using laboratory two-roll mill respectively：Preliminary roller
175 DEG C of temperature, rotating speed 20rpm, 170 DEG C, rotating speed 18rpm of rear roll temperature, roller spacing 0.4mm.Manufactured print carries out performance survey
Examination.
| Detection project | Detection method | Comparative example 1 | Embodiment 1 |
| Ageing resistance | GB/T7141-2008 | 30 minutes | 40 minutes |
| Anti-flammability | GB/T12666.1-2008 | Pass through | Pass through |
| It is Congo red | GB/T2917.1-2002 | 70 | 100 |
| Tensile strength | GB/T8804.2-2003 | 16.5MPa | 16.9MPa |
| Falling weight impact test | GB/T14152-2001 | Pass through | Pass through |
| Longitudinal welds | GB/T6671-2001 | ＜ 5% | ＜ 5% |
Test result finds that the comprehensive performance of 1 material of embodiment is apparently higher than 1 material of comparative example.
Embodiment 2
It is PVC S-65 (degree of polymerization 1000~1100) 120 parts by weight, 50 parts by weight of DOTP (dioctyl terephthalate), hard
0.3 parts by weight of resin acid zinc, 0.3 parts by weight of calcium stearate, modified 0.8 parts by weight of 4A zeolites (are changed according to 2 method of embodiment
Property).
Preparation method：
It is added to high-speed mixer according to the ratio to be stirred, mixing speed 1200rpm, waits being warming up to 100 DEG C, material is put
To cold mixer, mixing speed 200rpm, logical cooling water to material is cooled to 50 DEG C or less.
The preparation method of modified 4A zeolites：
1. being added to 10kg perchloric acid in the pressurized tank A with cooling system, controls temperature in A tanks and be less than 20 DEG C, add to A tanks
Pressure makes it keep 3kg pressure；
2. being added to 150kg4A zeolites in the reaction kettle B with sieve ribbon agitator, stirring is opened, mixing speed control exists
Between 30rpm-50rpm, sieve ribbon blender can generate three-dimensional hybrid effect, no dead angle；
3. opening A tank outlet valves, perchloric acid is equably sprayed onto on the 4A zeolites in B reaction kettles by No. 3 nozzles, is controlled
Mixing speed processed is between 30rpm-50rpm, the temperature (being less than 50 DEG C) of control reaction kettle B, when temperature in the kettle is more than 50 DEG C
The cooling system that reduction mixing speed opens reaction kettle B simultaneously makes its temperature be less than 50 DEG C；After perchloric acid is sprayed, continue
Stirring 20 minutes；About 50 minutes reaction time.
Comparative example 2
120 parts by weight of PVC S-65,50 parts by weight of DOTP (dioctyl terephthalate), 0.3 parts by weight of zinc stearate,
0.3 parts by weight of calcium stearate, common 0.8 parts by weight of 4A zeolites, are added to high-speed mixer and are stirred according to the ratio, mixing speed
1200rpm waits being warming up to 100 DEG C, material is put to cold mixer, mixing speed 200rpm that logical cooling water to material is cooled to 50
DEG C or less.
Comparative example 2 and 2 material of embodiment are processed film-making, condition using laboratory two-roll mill respectively：Preliminary roller
175 DEG C of temperature, rotating speed 20rpm, 170 DEG C, rotating speed 18rpm of rear roll temperature, roller spacing 0.4mm.Manufactured print carries out performance survey
Examination.
| Detection project | Detection method | Comparative example 2 | Embodiment 2 |
| Ageing resistance | GB/T7141-2008 | 30 minutes | 40 minutes |
| Anti-flammability | GB/T12666.1-2008 | Pass through | Pass through |
| It is Congo red | GB/T2917.1-2002 | 70 | 95 |
| Tensile strength | GB/T8804.2-2003 | 16.5MPa | 16.7MPa |
| Falling weight impact test | GB/T14152-2001 | Pass through | Pass through |
| Longitudinal welds | GB/T6671-2001 | ＜ 5% | ＜ 5% |
Test result finds that the comprehensive performance of 2 material of embodiment is apparently higher than 2 material of comparative example.
Claims (8)
1. a kind of anti-aging PVC material, it is characterised in that the material is made of the component of following parts by weight：
PVC 100-150 parts by weight
Dioctyl terephthalate 30-50 parts by weight
Zinc stearate 0.2-0.5 parts by weight
Calcium stearate 0.2-0.5 parts by weight
Modified 4A zeolite 0.6-1 parts by weight.
2. anti-aging PVC material according to claim 1, it is characterised in that the material is by the component of following parts by weight
It is made：
100 parts by weight of PVC
50 parts by weight of dioctyl terephthalate
Zinc stearate 0.3-0.4 parts by weight
Calcium stearate 0.3-0.4 parts by weight
Modified 4A zeolite 0.6-0.8 parts by weight.
3. anti-aging PVC material according to claim 1 or 2, it is characterised in that the modification 4A zeolites are will be high
Chloric acid is slowly equably sprayed onto 4A zeolite surfaces, and stirring while adding, and perchloric acid is reacted with 4A zeolites, perchloric acid and 4A zeolites
Weight ratio be 1：5-20.
4. the preparation method of modified zeolite according to claim 3, it is characterised in that the perchloric acid and 4A zeolites
Weight ratio is 1：10-15.
5. the preparation method of modified zeolite according to claim 3, it is characterised in that the reaction time is 0.5-1h.
6. the preparation method of modified zeolite according to claim 3, it is characterised in that the reaction temperature be not higher than
50℃。
7. the preparation method of modified zeolite according to claim 3, it is characterised in that the mixing speed is 30rpm-
50rpm。
8. the preparation method of anti-aging PVC material described in claim 1, it is characterised in that this approach includes the following steps：
Each component is added to high-speed mixer according to the ratio to be stirred, mixing speed 1200rpm-1500rpm, waits for that material heats up
To 90-120 DEG C, material is put to cold mixer, mixing speed 100rpm-200rpm, logical cooling water make material be cooled to 50 DEG C with
Under.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810299374.6A CN108467555A (en) | 2018-04-04 | 2018-04-04 | A kind of anti-aging PVC material and preparation method thereof |
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| CN201810299374.6A CN108467555A (en) | 2018-04-04 | 2018-04-04 | A kind of anti-aging PVC material and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002092686A1 (en) * | 2001-05-17 | 2002-11-21 | Reagens S.P.A. | Pvc stabilisers |
| CN104893153A (en) * | 2015-06-05 | 2015-09-09 | 浙江晶美建材科技有限公司 | Low-cost high-stability polyvinyl chloride (PVC) alloy sheet and preparation method thereof |
-
2018
- 2018-04-04 CN CN201810299374.6A patent/CN108467555A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002092686A1 (en) * | 2001-05-17 | 2002-11-21 | Reagens S.P.A. | Pvc stabilisers |
| CN104893153A (en) * | 2015-06-05 | 2015-09-09 | 浙江晶美建材科技有限公司 | Low-cost high-stability polyvinyl chloride (PVC) alloy sheet and preparation method thereof |
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