CN105778321A - Composite PVC stabilizer - Google Patents
Composite PVC stabilizer Download PDFInfo
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- CN105778321A CN105778321A CN201410770932.4A CN201410770932A CN105778321A CN 105778321 A CN105778321 A CN 105778321A CN 201410770932 A CN201410770932 A CN 201410770932A CN 105778321 A CN105778321 A CN 105778321A
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Abstract
The invention relates to a composite PVC stabilizer and a preparation method thereof. The invention relates to the field of polyvinyl chloride (PVC) processing heat stabilizers. The stabilizer is prepared from the following raw materials, by mass: 50-70 parts of zinc stearate, 20-40 parts of calcium stearate, 20-30 parts of dibutyltin dilaurate, 10-20 parts of dimaltitol adipate, 10-20 parts of maleate, 3-5 parts of beta-dione, 1-3 parts of an epoxy compound, 5-7 parts of an auxiliary heat stabilizer, and 5-10 parts of a lubricant. With the materials, the high-performance calcium-zinc stearate and dimaltitol adipate PVC composite heat stabilizer is prepared. When the novel heat stabilizer provided by the invention is used in PVC plastic processing, characteristics such as ideal initial color and good long-time heat stabilization effect. Also, plasticization can be promoted, balance torque can be reduced, and processing performance can be improved. The heat stabilizer provided by the invention is highly efficient and environment-friendly.
Description
Technical field
The present invention relates to a kind of composite PVC stabilizer, belong to polrvinyl chloride (PVC) processing heat stabilizer field.
Background technology
The advantages such as polrvinyl chloride (PVC) has that processability is good, intensity is high, corrosion-resistant, good insulating, difficult combustion, are widely used in industrial and agricultural production.But there are some defects in PVC strand, as there is allyl chloride etc., the processing temperature of PVC is typically in more than 170 DEG C, at these elevated temperatures, the active Cl atom such as allyl chloride is easily sloughed with the form of HCl, produces " slide fastener " formula chain reaction so that PVC its colour changed into yellow even turns black.And the HCl produced can promote the thermal degradation of PVC further.Thus PVC adds man-hour requirement and adds heat stabilizer.Conventional heat stabilizer has lead salt stabilizer, metal soap, organo-tin compound, organic stabilizer and the big class of complex stabilizer five.Along with the enhancing of people's environmental consciousness, the poisonous heat stabilizer such as leaded, cadmium is banned gradually, and environment-benign heat stabilizer will obtain new development.Wherein, organic tinbase and zinc-base heat stabilizer are most promising heat stabilizer systems.The price of organic tinbase is high, and relatively inexpensive zinc-base has the wide spectrum suitability more development space.But the maximum of zinc-base heat stabilizer is disadvantageous in that, the ZnCl generated during use2Promoting the thermal degradation of PVC, namely easily produce " zinc burning " phenomenon, so that add auxiliary stabilizer to avoid " zinc burning ", conventional auxiliary stabilizer has beta-diketon.Although auxiliary stabilizer can be obviously improved " zinc burning ", but brings high cost.
At present, many calcium zinc series products are had to achieve industrialization promotion, also many novel Patents are occurred in that, such as a kind of polyhydric alcohol compound and the application (200610034684.2) in Ca-Zn composite heat stabilizer thereof, this invention polyhydric alcohol compound mixes according to a certain ratio with calcium stearate, zinc stearate and stearic acid, melts, mediates, precipitation, cooling, pulverize, sieve, and obtains Ca-Zn composite heat stabilizer；The static burn in experiment flavescence time for PVC processing reaches more than 60 minutes, and Congo Red test Coloring Time reaches more than 46 minutes.
But, polyhydric alcohol is directly composite with Ca-Zn composite heat stabilizer, there is a very big defect: the fusing point of polyhydric alcohol is high, and easy segregation.This brings inconvenience to the application of polyhydric alcohol.
Summary of the invention
According to the deficiencies in the prior art, the technical problem to be solved in the present invention is: providing a kind of composite PVC stabilizer, thermal stability is excellent, and preparation method step is terse, it is simple to produce.
The technical solution adopted for the present invention to solve the technical problems is: providing a kind of composite PVC stabilizer, the raw material being prepared by mass fraction is made:
Described beta-diketon selects dibenzoyl methane or stearoyl benzoyl methane.
Described lubricant selects stearic acid or Tissuemat E.
Described auxiliary heat stabilizer selects epoxy soybean oil.
The invention has the beneficial effects as follows: novel calcium stearate zinc is used as the stabilizer of the plastic processings such as PVC with adipic acid two maltose alcohol ester PVC composite heat stabilizer, not only there is the advantage that calcium zinc heat stabilizer initial stage form and aspect are good, and the feature of long-term thermal stability can also be obviously improved.Composite thermal stabilizer prepared by the interpolation present invention can reduce PVC and add the counter balance torque in man-hour, hence it is evident that promote processing characteristics.Show by the PVC sample adding novel calcium stearate zinc and adipic acid two maltose alcohol ester PVC composite heat stabilizer is carried out Congo Red test, Congo red Coloring Time is more than 67min, static heat senile experiment result shows, the novel calcium stearate zinc of the interpolation present invention and adipic acid two maltose alcohol ester PVC composite heat stabilizer can be obviously improved the long-term thermal stability of PVC, will not substantially blackening in 80min.The preparation method of the present invention is pollution-free, energy consumption is low.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described further:
Embodiment 1
Composite PVC stabilizer, is made up of the raw material of following mass fraction:
Described beta-diketon selects dibenzoyl methane.
Described lubricant selects stearic acid or Tissuemat E.
Described auxiliary heat stabilizer selects epoxy soybean oil.
Embodiment 2
Composite PVC stabilizer, is made up of the raw material of following mass fraction:
Described beta-diketon selects stearoyl benzoyl methane.
Described lubricant selects Tissuemat E.
Described auxiliary heat stabilizer selects epoxy soybean oil.
Embodiment 3
Composite PVC stabilizer, is made up of the raw material of following mass fraction:
Described beta-diketon selects dibenzoyl methane.
Described lubricant selects stearic acid.
Described auxiliary heat stabilizer selects epoxy soybean oil.
Above-described embodiment 1,2 and 3 three kind of composite thermal stabilizer are separately added in 100 mass parts PVC by 4 mass parts, add 20 mass parts calcium carbonate, 5 mass parts TiO2, 1 mass parts stearic acid, twin-roll mixing 5 minutes at 180 DEG C, make the laminar sample that thickness is 1mm.
Table 1 Congo Red test
Claims (4)
1. a composite PVC stabilizer, it is characterised in that the raw material being prepared by mass fraction is made:
2. composite PVC stabilizer according to claim 1, it is characterised in that described beta-diketon selects dibenzoyl methane or stearoyl benzoyl methane.
3. composite PVC stabilizer according to claim 1, it is characterised in that described lubricant selects stearic acid or Tissuemat E.
4. composite PVC stabilizer according to claim 1, it is characterised in that described auxiliary heat stabilizer selects epoxy soybean oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410770932.4A CN105778321A (en) | 2014-12-13 | 2014-12-13 | Composite PVC stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410770932.4A CN105778321A (en) | 2014-12-13 | 2014-12-13 | Composite PVC stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105778321A true CN105778321A (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410770932.4A Pending CN105778321A (en) | 2014-12-13 | 2014-12-13 | Composite PVC stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105778321A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106317911A (en) * | 2016-08-19 | 2017-01-11 | 深圳市志海实业股份有限公司 | Compound stabilizer based on polybenzimidazole and preparation method of compound stabilizer based on polybenzimidazole |
| CN106366272A (en) * | 2016-08-28 | 2017-02-01 | 山东成泰化工有限公司 | Polyurethane catalyst composition |
-
2014
- 2014-12-13 CN CN201410770932.4A patent/CN105778321A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106317911A (en) * | 2016-08-19 | 2017-01-11 | 深圳市志海实业股份有限公司 | Compound stabilizer based on polybenzimidazole and preparation method of compound stabilizer based on polybenzimidazole |
| CN106366272A (en) * | 2016-08-28 | 2017-02-01 | 山东成泰化工有限公司 | Polyurethane catalyst composition |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160720 |
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| WD01 | Invention patent application deemed withdrawn after publication |