CN107216533A - heat stabilizer for PVC film and tubing and preparation method thereof - Google Patents
heat stabilizer for PVC film and tubing and preparation method thereof Download PDFInfo
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- CN107216533A CN107216533A CN201710643401.2A CN201710643401A CN107216533A CN 107216533 A CN107216533 A CN 107216533A CN 201710643401 A CN201710643401 A CN 201710643401A CN 107216533 A CN107216533 A CN 107216533A
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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
- 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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- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention discloses a kind of for heat stabilizer of PVC film and tubing and preparation method thereof, comprise the following steps：A. stearic acid is added into reactor, heating and melting is kept molten by after melting completely；B. zinc oxide is added into the stearic acid of molten condition, while catalyst α is added dropwise, after the completion of zinc oxide is added, after waiting its reaction 7~15 minutes, adds calcium hydroxide, catalyst β is added dropwise while adding calcium hydroxide；C. after the completion for the treatment of that calcium hydroxide is added, keep reacting and progressively rising to temperature 100~115 DEG C, the fused materials containing calcium zinc stearate are obtained after moisture progressively evaporates completely；D. the fused materials containing calcium zinc stearate are cooled down into tabletting, is then crushed to powdery, mixture x is obtained by being well mixed in obtained granular material and ready mercaptans type in proportion, Tissuemat E and modified additive addition mixer；E. mixture x progress extruding pelletizations are obtained into graininess finished product.Solve the problem of existing calcium zinc stabilizer stability is poor.
Description
Technical field
The present invention relates to compound stabilizer field, and in particular to a kind of to be used for the heat stabilizer and its system of PVC film and tubing
Preparation Method.
Background technology
Stabilizer for plastics is necessary additive in plastic processing, the photostability, thermally-stabilised for improving plastic products
Property, improve its heat resistanceheat resistant solution and the property indices such as anti-aging, and improve plasticizing and the extrusion performance of plastic processes.
Stabilizer includes base lead salt, fatty acid soaps, organotin, organic auxiliary stabilizer etc.；Such as：1. tribasic carbonic acid
Lead, the heat resistance of dibasic lead phosphite, electrical insulating property are preferable, but poisonous, transparent and bad dispersibility, and CABLE MATERIALS is stable with such
Based on agent；2. fatty acid soaps generally two or more and to produce cooperative effect, wherein cadmium soap and barium soap is poisonous, calcium zinc stabilizer
With it is environment-protecting and non-poisonous the characteristics of, be the unique selection of generally acknowledged at present replacement lead salt, it is adaptable to various PVC, rubber, part coatings
Product or product；3. organotin has the good transparency, and the heat resistance and weatherability of many kinds are very prominent, but price
Height, application is small, is used for clear plastic articles at present；4. organic auxiliary stabilizer is typically then the auxiliary of aforementioned stable agent
Property additive, to improve certain performance indications.
Generally all there are various shortcomings in existing stabilizer, although wherein calcium zinc stabilizer have it is environment-protecting and non-poisonous,
The HCl that the degraded of the characteristics of wide adaptability, theoretically zinc-iron alloy solution PVC is produced, blocks degraded, but the zinc chloride of generation is catalyzed on the contrary
Degraded, therefore its stability is poor, the phenomenon for burning zinc easily occurs, while the coloring at its initial stage is also and good.
The content of the invention
It is an object of the invention to provide a kind of for heat stabilizer of PVC film and tubing and preparation method thereof, solve existing
There is the problem of calcium zinc stabilizer stability difference and poor initial coloring.
To solve above-mentioned technical problem, the present invention uses following technical scheme：
A kind of preparation method for the heat stabilizer for being used for PVC film and tubing, comprises the following steps：A. added into reactor stearic
Acid, heating melts it, is kept molten by after stearic acid melts completely；B. into the stearic acid of molten condition at the uniform velocity plus
Enter zinc oxide, catalyst α is added dropwise while zinc oxide is added, after the completion of zinc oxide is added, wait it to react 7~15 minutes
Afterwards, addition calcium hydroxide at the uniform velocity, catalyst β is added dropwise while calcium hydroxide is added；C. after the completion for the treatment of that calcium hydroxide is added,
Keep reacting and progressively rising to temperature 100~115 DEG C, during which moisture progressively evaporates, obtained after moisture progressively evaporates completely
Fused materials containing calcium zinc stearate；D. the fused materials containing calcium zinc stearate are cooled down into tabletting, then by its powder
Powdery is broken to, obtained granular material is added into mixer with ready mercaptans type in proportion, Tissuemat E and modified additive
In be well mixed obtain mixture x；E. mixture x progress extruding pelletizations are obtained into graininess finished product.
Addition zinc oxide in step b into the stearic acid of molten condition at the uniform velocity, at the same be added dropwise catalyst α, be in order that
Stearic acid and zinc oxide are reacted rapidly in the presence of catalyst α, generation zinc stearate, addition calcium hydroxide at the uniform velocity,
Catalyst β is added dropwise simultaneously, is that generation is hard in order that stearic acid and calcium hydroxide are reacted rapidly in the presence of catalyst β
Resin acid calcium, without using calcium oxide is that alkalescence is strong because calcium oxide is quick lime using calcium hydroxide, heating is serious, uses hydrogen
Calcium oxide can be such that reaction more relaxes, will not be excessively fierce, and waiting zinc oxide to add calcium hydroxide after reacting 7~15 minutes is
Allow the latter to be reacted again because waiting the former to react, progressively rising to temperature during 100~115 DEG C, moisture meeting
Gradually evaporate, temperature is stepped up being to control reaction speed, it is to avoid reaction is excessively violent, generates various accessory substances, simultaneously
The phenomenon of excessive pot is prevented, it is to improve prepare compound steady to be eventually adding mercaptans type, Tissuemat E and modified additive
Determine the stability of agent finished product and the coloring at initial stage, the synergy of antimonic salt and calcium is also fine, therefore can carry after adding mercaptans type
The stability of high compound stabilizer finished product, postpones or overcomes " zinc burning " phenomenon, and Tissuemat E is to be obtained to improve after mixing
The performances such as the lubricity to material, processing of being more convenient for.
As present invention further optimization, during stearic acid thawing is made in the step a, when stearic acid melts
After more than 20%, stearic acid is stirred until thawing completely.
It is stirred when after stearate moiety thawing, can accelerates to melt, improve production efficiency.
As present invention further optimization, during catalyst α and catalyst β in the step b are acetic acid, step b
The stearic acid of molten condition, zinc oxide, catalyst α, calcium hydroxide and catalyst β mass fraction are respectively the hard of molten condition
90~100 parts of resin acid, 3~4 parts of zinc oxide, 0.05~0.1 part of catalyst α, 5~8 parts of calcium hydroxide and catalyst β 0.05~
0.1 part.
As present invention further optimization, in the step c, the time for keeping reaction is 10~30 minutes.
Can so it make reaction more abundant, it is to avoid to cause the waste of raw material.
As present invention further optimization, the modified additive epoxidized soybean oil in the step d, in the granular material
Granular material, mercaptans type, Tissuemat E and ring that the content of stearate is accounted in the 8%~10% of granular material gross mass, step d
Oxygen soybean oil is respectively 90~100 parts of granular material, 3~6 parts of mercaptans type, 27~30 parts of Tissuemat E and ring according to the mass fraction
6~10 parts of oxygen soybean oil.
It is that the soffening performance of material is obtained after mixing in order to improve to add epoxidized soybean oil, also for more convenient to mixed
Compound material is processed.
As present invention further optimization, the preparation method of the mercaptans type in the step d comprises the following steps：（1）.
Mercaptan carboxylic acid, fatty alcohol, catalyst and organic solvent are got out in proportion, are heated to reflux carrying out esterification, until reaction water
Untill separating completely, f materials are obtained；（2）Antimony oxide solution is added into f materials while hot, continues to be heated to reflux being closed
Into reaction, heating is stopped after reaction completely, split-phase is stood and separates aqueous phase therein while hot, organic phase is evaporated in vacuo,
Steam after solvent through vacuum drying, obtain mercapto-carboxylic ester antimony heat stabilizer, produce mercaptans type heat stabilizer.
As present invention further optimization, the mercaptan carboxylic acid, fatty alcohol mol ratio are 1:1~1:1.2.
What a kind of preparation method as described in above-mentioned any one was prepared is used for the heat stabilizer of PVC film and tubing, bag
Composition containing following mass fraction：Stearic acid 60~65%, zinc oxide 2~4%, calcium hydroxide 4~6%, mercaptans type 1.9~2.8%,
Tissuemat E 20~22% and epoxidized soybean oil 5~8%.
Compared with prior art, the beneficial effects of the invention are as follows：
1. adding mercaptans type to be modified, modified, the stability of compound stabilizer is more preferable.
2. being prepared using fusion method, brine waste will not be produced.
3. course of reaction is quick and controllable.
4. manufacture craft is simple, production method is simple.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Specific embodiment 1：
A kind of preparation method for the heat stabilizer for being used for PVC film and tubing, comprises the following steps：A. added into reactor stearic
Acid, heating melts it, is kept molten by after stearic acid melts completely；B. into the stearic acid of molten condition at the uniform velocity plus
Enter zinc oxide, catalyst α is added dropwise while zinc oxide is added, after the completion of zinc oxide is added, wait it to react 7~15 minutes
Afterwards, addition calcium hydroxide at the uniform velocity, catalyst β is added dropwise while calcium hydroxide is added；C. after the completion for the treatment of that calcium hydroxide is added,
Keep reacting and progressively rising to temperature 100~115 DEG C, during which moisture progressively evaporates, obtained after moisture progressively evaporates completely
Fused materials containing calcium zinc stearate；D. the fused materials containing calcium zinc stearate are cooled down into tabletting, then by its powder
Powdery is broken to, obtained granular material is added into mixer with ready mercaptans type in proportion, Tissuemat E and modified additive
In be well mixed obtain mixture x；E. mixture x progress extruding pelletizations are obtained into graininess finished product.
Addition zinc oxide in step b into the stearic acid of molten condition at the uniform velocity, at the same be added dropwise catalyst α, be in order that
Stearic acid and zinc oxide are reacted rapidly in the presence of catalyst α, generation zinc stearate, addition calcium hydroxide at the uniform velocity,
Catalyst β is added dropwise simultaneously, is that generation is hard in order that stearic acid and calcium hydroxide are reacted rapidly in the presence of catalyst β
Resin acid calcium, without using calcium oxide is that alkalescence is strong because calcium oxide is quick lime using calcium hydroxide, heating is serious, uses hydrogen
Calcium oxide can be such that reaction more relaxes, will not be excessively fierce, and waiting zinc oxide to add calcium hydroxide after reacting 7~15 minutes is
Allow the latter to be reacted again because waiting the former to react, progressively rising to temperature during 100~115 DEG C, moisture meeting
Gradually evaporate, temperature is stepped up being to control reaction speed, it is to avoid reaction is excessively violent, generates various accessory substances, simultaneously
The phenomenon of excessive pot is prevented, it is to improve prepare compound steady to be eventually adding mercaptans type, Tissuemat E and modified additive
Determine the stability of agent finished product and the coloring at initial stage, the synergy of antimonic salt and calcium is also fine, therefore can carry after adding mercaptans type
The stability of high compound stabilizer finished product, postpones or overcomes " zinc burning " phenomenon, and Tissuemat E is to be obtained to improve after mixing
The performances such as the lubricity to material, processing of being more convenient for.
Specific embodiment 2：
The present embodiment is to have carried out further instruction to step a on the basis of specific embodiment 1, is made in the step a hard
During resin acid melts, after stearic acid has melted more than 20%, stearic acid is stirred until thawing completely.
It is stirred when after stearate moiety thawing, can accelerates to melt, improve production efficiency.
Specific embodiment 3：
The present embodiment is to have carried out further instruction to step b on the basis of specific embodiment 1, urging in the step b
Agent α and catalyst β are stearic acid, zinc oxide, catalyst α, calcium hydroxide and the catalysis of molten condition in acetic acid, step b
Agent β mass fraction is respectively 3~4 parts of 90~100 parts of stearic acid, the zinc oxide of molten condition, 0.05~0.1 part of catalyst α,
0.05~0.1 part of 5~8 parts of calcium hydroxide and catalyst β.
Specific embodiment 4：
The present embodiment is to have carried out further instruction to step b on the basis of specific embodiment 3, urging in the step b
Agent α and catalyst β are stearic acid, zinc oxide, catalyst α, calcium hydroxide and the catalysis of molten condition in acetic acid, step b
Agent β mass fraction is respectively 3 parts of 90 parts of stearic acid, the zinc oxide of molten condition, 0.05 part of catalyst α, 5 parts of calcium hydroxide and
0.05 part of catalyst β.
Specific embodiment 5：
The present embodiment is to have carried out further instruction to step b on the basis of specific embodiment 3, urging in the step b
Agent α and catalyst β are stearic acid, zinc oxide, catalyst α, calcium hydroxide and the catalysis of molten condition in acetic acid, step b
Agent β mass fraction is respectively 3.6 parts of 95 parts of stearic acid, the zinc oxide of molten condition, 0.08 part of catalyst α, 6 parts of calcium hydroxide
With 0.07 part of catalyst β.
Specific embodiment 6：
The present embodiment is to have carried out further instruction to step b on the basis of specific embodiment 3, urging in the step b
Agent α and catalyst β are stearic acid, zinc oxide, catalyst α, calcium hydroxide and the catalysis of molten condition in acetic acid, step b
Agent β mass fraction is respectively 4 parts of 100 parts of stearic acid, the zinc oxide of molten condition, 0.1 part of catalyst α, 8 parts of calcium hydroxide and
0.1 part of catalyst β.
Specific embodiment 7：
The present embodiment is to have carried out further instruction to step c on the basis of specific embodiment 1, in the step c, is kept
The time of reaction is 10~30 minutes.
Can so it make reaction more abundant, it is to avoid to cause the waste of raw material.
Specific embodiment 8：
The present embodiment is step d have been carried out on the basis of specific embodiment 1 in further instruction, the granular material firmly
Granular material, mercaptans type, Tissuemat E and epoxy that the content of resin acid salt is accounted in the 8%~10% of granular material gross mass, step d
Soybean oil is respectively 90~100 parts of granular material, 3~6 parts of mercaptans type, 27~30 parts of Tissuemat E and epoxy according to the mass fraction
6~10 parts of soybean oil.
It is that the soffening performance of material is obtained after mixing in order to improve to add epoxidized soybean oil, also for more convenient to mixed
Compound material is processed.
Specific embodiment 9：
The present embodiment is to have carried out further instruction to step d on the basis of specific embodiment 8, changing in the step d
The powder that the content of stearate is accounted in the 8% of granular material gross mass, step d in property auxiliary agent epoxidized soybean oil, the granular material
Shape material, mercaptans type, Tissuemat E and epoxidized soybean oil are respectively 90 parts of granular material, 3 parts of mercaptans type according to the mass fraction, gathered
6 parts of 27 parts of ethylene waxes and epoxidized soybean oil.
Specific embodiment 10：
The present embodiment is to have carried out further instruction to step d on the basis of specific embodiment 8, changing in the step d
The powder that the content of stearate is accounted in the 9% of granular material gross mass, step d in property auxiliary agent epoxidized soybean oil, the granular material
Shape material, mercaptans type, Tissuemat E and epoxidized soybean oil are respectively 98 parts of granular material, 5 parts of mercaptans type according to the mass fraction, gathered
9 parts of 28 parts of ethylene waxes and epoxidized soybean oil.
Specific embodiment 11：
The present embodiment is to have carried out further instruction, the step to the mercaptans type in step d on the basis of specific embodiment 1
The preparation method of mercaptans type in rapid d comprises the following steps：（1）Be ready in proportion mercaptan carboxylic acid, fatty alcohol, catalyst and
Organic solvent, is heated to reflux carrying out esterification, untill reaction water is separated completely, obtains f materials；（2）While hot to f things
Antimony oxide solution is added in material, continues to be heated to reflux to stop heating after carrying out synthetic reaction, reaction completely, stands split-phase simultaneously
Aqueous phase therein is separated while hot, organic phase is evaporated in vacuo, and is steamed after solvent through vacuum drying, is obtained mercapto-carboxylic ester antimony
Heat stabilizer, produces mercaptans type heat stabilizer.
Specific embodiment 12：
The present embodiment is to step on the basis of specific embodiment 11（1）Middle mercaptan carboxylic acid, the mol ratio of fatty alcohol are carried out
Further instruction, the mercaptan carboxylic acid, fatty alcohol mol ratio are 1:1~1:1.2.
Specific embodiment 13：
What a kind of preparation method as described in above-mentioned any one was prepared is used for the heat stabilizer of PVC film and tubing, comprising such as
The composition of lower mass fraction：Stearic acid 60~65%, zinc oxide 2~4%, calcium hydroxide 4~6%, mercaptans type 1.9~2.8%, poly- second
Alkene wax 20~22% and epoxidized soybean oil 5~8%.
Specific embodiment 14：
The present embodiment is the quality to each composition in the heat stabilizer for PVC film and tubing on the basis of specific embodiment 13
Fraction has carried out further instruction, and what a kind of preparation method as described in above-mentioned any one was prepared is used for PVC film and pipe
The heat stabilizer of material, includes the composition of following mass fraction：Stearic acid 63%, zinc oxide 2%, calcium hydroxide 6%, mercaptans type 2.3%,
Tissuemat E 20.7% and epoxidized soybean oil 6%.
Specific embodiment 15：
The present embodiment is the quality to each composition in the heat stabilizer for PVC film and tubing on the basis of specific embodiment 13
Fraction has carried out further instruction, and what a kind of preparation method as described in above-mentioned any one was prepared is used for PVC film and pipe
The heat stabilizer of material, includes the composition of following mass fraction：Stearic acid 60%, zinc oxide 4%, calcium hydroxide 5.2%, mercaptans type
2.8%th, Tissuemat E 20% and epoxidized soybean oil 8%.
Specific embodiment 16：
The present embodiment is the quality to each composition in the heat stabilizer for PVC film and tubing on the basis of specific embodiment 13
Fraction has carried out further instruction, and what a kind of preparation method as described in above-mentioned any one was prepared is used for PVC film and pipe
The heat stabilizer of material, includes the composition of following mass fraction：Stearic acid 65%, zinc oxide 2.1%, calcium hydroxide 4%, mercaptans type
1.9%th, Tissuemat E 22% and epoxidized soybean oil 5%.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modification and embodiment, and these modifications and embodiment will fall in this Shen
Please be within disclosed spirit and spirit.More specifically, can be to master in the range of disclosure and claim
The building block and/or layout for inscribing composite configuration carry out a variety of variations and modifications.Except what is carried out to building block and/or layout
Outside modification and improvement, to those skilled in the art, other purposes also will be apparent.
Claims (8)
1. a kind of preparation method for the heat stabilizer for being used for PVC film and tubing, it is characterised in that：Comprise the following steps：A. to anti-
Answer and stearic acid is added in kettle, heating melts it, be kept molten by after stearic acid melts completely；B. to the hard of molten condition
Addition zinc oxide in resin acid at the uniform velocity, catalyst α is added dropwise while zinc oxide is added, after the completion of zinc oxide is added, it is waited
After reaction 7~15 minutes, catalyst β is added dropwise while calcium hydroxide is added in addition calcium hydroxide at the uniform velocity；C. hydroxide is treated
After the completion of calcium is added, keep reacting and progressively rising to temperature 100~115 DEG C, during which moisture progressively evaporates, and treats that moisture progressively steams
The fused materials containing calcium zinc stearate are obtained after distributing entirely；D. the fused materials containing calcium zinc stearate are cooled down and pressed
Piece, is then crushed to powdery, and obtained granular material is helped with ready mercaptans type in proportion, Tissuemat E and modification
Agent, which adds to be well mixed in mixer, obtains mixture x；E. mixture x progress extruding pelletizations are obtained into graininess finished product.
2. the preparation method of the heat stabilizer according to claim 1 for being used for PVC film and tubing, it is characterised in that：It is described
During making stearic acid thawing in step a, after stearic acid has melted more than 20%, stearic acid is stirred until completely
Melt.
3. the preparation method of the heat stabilizer according to claim 1 for being used for PVC film and tubing, it is characterised in that：It is described
Catalyst α and catalyst β in step b are stearic acid, zinc oxide, catalyst α, the hydrogen-oxygen of molten condition in acetic acid, step b
Change calcium and catalyst β mass fraction are respectively 3~4 parts of 90~100 parts of stearic acid, the zinc oxide of molten condition, catalyst α
0.05~0.1 part of 0.05~0.1 part, 5~8 parts of calcium hydroxide and catalyst β.
4. the preparation method of the heat stabilizer according to claim 1 for being used for PVC film and tubing, it is characterised in that：It is described
In step c, the time for keeping reaction is 10~30 minutes.
5. the preparation method of the heat stabilizer according to claim 1 for being used for PVC film and tubing, it is characterised in that：It is described
The content of stearate accounts for the 8% of granular material gross mass in modified additive epoxidized soybean oil in step d, the granular material
Granular material, mercaptans type, Tissuemat E and epoxidized soybean oil in~10%, step d are respectively granular material according to the mass fraction
6~10 parts of 90~100 parts, 3~6 parts of mercaptans type, 27~30 parts of Tissuemat E and epoxidized soybean oil.
6. the preparation method of the heat stabilizer according to claim 1 for being used for PVC film and tubing, it is characterised in that：It is described
The preparation method of mercaptans type in step d comprises the following steps：（1）Mercaptan carboxylic acid, fatty alcohol, catalyst are got out in proportion
And organic solvent, it is heated to reflux carrying out esterification, untill reaction water is separated completely, obtains f materials；（2）While hot to f
Antimony oxide solution is added in material, continues to be heated to reflux to stop heating after carrying out synthetic reaction, reaction completely, stands split-phase
And aqueous phase therein is separated while hot, organic phase is evaporated in vacuo, steams after solvent through vacuum drying, obtains mercapto-carboxylic ester
Antimony heat stabilizer, produces mercaptans type heat stabilizer.
7. the preparation method of the heat stabilizer according to claim 6 for being used for PVC film and tubing, it is characterised in that：It is described
Mercaptan carboxylic acid, fatty alcohol mol ratio are 1:1~1:1.2.
8. the heat for PVC film and tubing that a kind of preparation method as described in any one in claim 1~7 is prepared is steady
Determine agent, it is characterised in that：Include the composition of following mass fraction：Stearic acid 60~65%, zinc oxide 2~4%, calcium hydroxide 4~
6%th, mercaptans type 1.9~2.8%, Tissuemat E 20~22% and epoxidized soybean oil 5~8%.
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Cited By (1)
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| CN112174810A (en) * | 2020-09-15 | 2021-01-05 | 山东省高密市友和助剂有限公司 | Preparation method of modified zinc stearate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112174810A (en) * | 2020-09-15 | 2021-01-05 | 山东省高密市友和助剂有限公司 | Preparation method of modified zinc stearate |
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