CN1136051A - Surfactant for producing plastic filler - Google Patents
Surfactant for producing plastic filler Download PDFInfo
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- CN1136051A CN1136051A CN 96104848 CN96104848A CN1136051A CN 1136051 A CN1136051 A CN 1136051A CN 96104848 CN96104848 CN 96104848 CN 96104848 A CN96104848 A CN 96104848A CN 1136051 A CN1136051 A CN 1136051A
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- plastic filler
- surfactant
- filler
- paraffin
- atactic polypropelene
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Abstract
A surface activating agent for preparing basic filler of plastics with low cost and simple process is made of sodium stearate (20-30 wt.%), random polypropylene or low-molecular polyethylene (18-25 Wt.%), paraffin or atoleine (0-20 wt.%) and water (35-50 wt.%).
Description
The present invention relates to prepare the surfactant of plastic filler, specifically be used to prepare the surfactant that contains inorganic filling master batch.
At present, plastic filler has generally comprised polyolefin carrier and mineral filler (as lime carbonate) and forming agent, releasing agent etc.Be one for polyolefin carrier and mineral filler can be fused equably, in plastic filler, also will add surfactant.Now, the most frequently used surfactant has silicane, aluminium esters of gallic acid, zirconium class and organic chromium compounds, when the preparation plastic filler, usually only select wherein a kind of simple substance compound, and the avidity of the organo-functional group of these compounds is poor, activation effect is for addressing this problem, producer all adopts the method that strengthens the polyolefin carrier consumption, as making surperficial activator with the aluminic acid ester, just need to strengthen the consumption of polyolefin carrier, general polyolefin carrier will account for 12% of plastic filler; So, just improved the cost of prepared plastic filler.For overcoming this shortcoming, reduce the cost of plastic filler, someone adopts the alternative above-mentioned organic compound of Atactic Polypropelene to serve as surfactant, its consumption generally accounts for about 3% of plastic filler gross weight, thereby can reduce the consumption of polyolefin carrier, make this carrier 12% reduce to 9% by what accounted for the plastic filler gross weight originally; Thereby reduced the cost of plastic filler effectively; But along with Atactic Polypropelene widespread use on chemical engineering industry in recent years, raw material sources day is becoming tight, and cost of material constantly raises up, and its selling price with polyethylene quite or higher, has not had practical significance so make surperficial activator with Atactic Polypropelene; Moreover, make surperficial activator with Atactic Polypropelene, its processing condition are difficult to grasp during the preparation plastic filler, as in preparation process, need earlier high-speed stirring to be carried out in mineral filler,, grasp and wherein the length of churning time is very difficult to displace the moisture content in the mineral filler, short as churning time, moisture content in the mineral filler is displaced complete inadequately, and the coating ability of Atactic Polypropelene causes activation effect bad, and churning time is long slightly, cause temperature of charge to raise again, the viscosity of Atactic Polypropelene is strengthened, the problem of granulation occurs being difficult for, so not only influence the output of plastic filler, also be difficult to guarantee its quality.
Purpose of the present invention is exactly that a kind of surfactant that is used to prepare plastic filler will be provided, and this surfactant can reduce the cost of plastic filler, also can simplify the production process of plastic filler simultaneously.
The object of the present invention is achieved like this, select wide material sources, price is lower, the sodium stearate that hydrophilic interaction is stronger is made matrix, adding with polyolefin carrier has the Atactic Polypropelene of excellent compatibility to make intermediate, and add an amount of moisture content, make it fully fused, for improving its thermal fluidity, also can add proper amount of paraffin or whiteruss, thereby form a kind of compound surfactant of forming by multiple compound, it forms by the component of following weight per-cent is fused: sodium stearate 20-30%, Atactic Polypropelene or low molecular polyethylene 18-25% paraffin or whiteruss 0-20%, water 35-50%; The best ratio range of this component is: sodium stearate 20-27, Atactic Polypropelene or low molecular polyethylene 20-22%; Paraffin or whiteruss 10-20%, water 40-45%.
The tensio-active agent that said components is combined into can not directly add plastic filler respectively with its each component when being used for preparing plastic filler, otherwise does not reach activation.
Preparation method of the present invention is very simple, and each component outside being about to dewater is put into heating tank, is heated to fusing, adds slowly in the heating tank after the water additional heat may is more than 70 ℃, stir.
One of innovative point of the present invention is hydrophilic, lipophilicity substance organically are fused into one, constitute compound surfactant, strengthened the coating ability of surfactant to inorganic fillings, when being used to prepare plastic filler, only need this compound surfactant with 1.5-2.0% (accounting for the filling master batch gross weight), just can be under the situation that does not increase polyolefin carrier, obtained and added, thereby obviously reduced the cost of plastic filler with the identical activation effect of 3% Atactic Polypropelene.
Two of innovative point of the present invention has been to point out the ratio range of each component of surfactant of the present invention, this ratio range is groped through long-term experiment and is drawn, and crosses when low when the sodium stearate in the composition, and its hydrophilic interaction is not enough, when mixed with water, easily cause oily water separation; When add-on is too much, composition hardness is strengthened, be difficult in use pulverize; And be unsuitable for its good coating effect of performance; Cross when low when the Atactic Polypropelene in the composition or low molecular polyethylene, its oleophilic function is not enough, and activation effect is bad, when consumption is too high, has not only improved production cost, also can cause the oily water separation of composition, and each component can not well be fused; Paraffin or whiteruss are a kind of releasing agents, for increasing the heat flow performance of this tensio-active agent, can add in right amount, but add-on is when too much, can destroy oil, water coats protective layer; The moisture content of being dosed in this surfactant also should be an amount of, and when moisture content was very few, each component can not be fully fused, and when moisture content was too much, when being used to prepare plastic filler, moisture content wherein was difficult to take off dried, can cause activation effect poor.
Three of innovative point of the present invention is, disclosed surfactant is when being used to prepare plastic filler, mineral filler there is clammy adherent effect, be effect and the very strong inorganic filler surface adhesion of polarity that it at room temperature can borrow water molecules, therefore, when the preparation plastic filler, can drop in the stirrer in the lump with mineral filler and stir, simplified its processing condition.In addition since in this tensio-active agent water content can reduce temperature in the stirrer, thereby overcome the problem that needs strict control churning time when making surperficial activator and prepare plastic filler with Atactic Polypropelene.
Beneficial effect of the present invention can be apparent by following contrast:
We adopt two kinds of tensio-active agents to be used to prepare plastic filler, and prescription is respectively (1) and (2), and wherein A represents Atactic Polypropelene, and B represents tensio-active agent of the present invention.
Prescription (1): polyethylene 9% prescription (2): polyethylene 9%
Stearic acid 0.7% stearic acid 0.7%
Paraffin 5% paraffin 5%
A 3％ B 1.5％
Lime carbonate 82.3% lime carbonate 83.8%
Be immersed in the plastic filler of these two kinds of formulation that (one times of analytical pure hydrochloric acid thin up) all do not have disintegration, reactionless after 24 hours in the hydrochloric acid, prove that its activation effect is identical, and its cost have notable difference; According to market price of raw material meter in December nineteen ninety-five: 11550 yuan/ton of Atactic Polypropelenes, 8380 yuan/ton of this surfactants are so make the raw materials cost that one ton of plastic filler of the every production of surperficial activator can reduce by 194.00 yuans with the present invention.
The technological process contrast:
The method of producing plastic filler by prescription (1) is: earlier mineral filler lime carbonate is put into stirrer and carry out high-speed stirring, to displace the moisture content that mineral filler includes, strict control churning time, concrete churning time will be decided by rule of thumb, good to add the Atactic Polypropelene activation effect, easily granulation is as the criterion, the long slightly or short slightly quality that all can influence plastic filler of churning time.After Atactic Polypropelene coats fully, added stearic acid, paraffin and polyethylene restir 1-2 minute, mix and get final product.
The method of producing plastic filler according to prescription (2) is:
Mineral filler lime carbonate and tensio-active agent of the present invention are put into stirrer together, stir after 10-20 minute, add stearic acid, paraffin, polyethylene, stirred 1-2 minute, mix and get final product, be characterized in that churning time does not need strict control, prepared plastic filler steady quality.
Embodiment 1:
Take by weighing 30 kilograms of sodium stearate, 20 kilograms of Atactic Polypropelenes, put into heating tank, be heated to molten melting, add 50 kilograms of above 70 ℃ hot water, stir, can use after the cooling.
Embodiment 2:
Take by weighing 20 kilograms of sodium stearate, 25 kilograms of Atactic Polypropelenes, paraffin is put into heating tank for 10 kilograms, is heated to molten moltenly, adds 80 ℃ 45 kilograms of hot water, stirs, and can use after the cooling.The tensio-active agent that this embodiment makes is easy to the demoulding.
The preparation method of following examples is identical with embodiment 1,2, and just different on the proportioning consumption of each component, its effect, effect all can realize purpose of the present invention.
Claims (2)
1, a kind of surfactant that is used to prepare plastic filler is characterized in that it forms by the component of following weight per-cent is fused:
Sodium stearate 20-30%
Atactic Polypropelene or low molecular polyethylene 18-25%
Paraffin or whiteruss 0-20%
Water 35-50%
2, surfactant according to claim 1 is characterized in that the weight percent of each component is:
Sodium stearate 20-27%
Atactic Polypropelene or low molecular polyethylene 20-22%
Paraffin or whiteruss 10-20%
Water 40-45%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96104848 CN1136051A (en) | 1996-05-06 | 1996-05-06 | Surfactant for producing plastic filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96104848 CN1136051A (en) | 1996-05-06 | 1996-05-06 | Surfactant for producing plastic filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1136051A true CN1136051A (en) | 1996-11-20 |
Family
ID=5118584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96104848 Pending CN1136051A (en) | 1996-05-06 | 1996-05-06 | Surfactant for producing plastic filler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1136051A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072738C (en) * | 1997-09-04 | 2001-10-10 | 中国石化扬子石油化工公司 | Method for preparing material for production of polypropylene fibers |
| CN111171430A (en) * | 2020-02-18 | 2020-05-19 | 江西铜业技术研究院有限公司 | Easily-dispersible carbon nanotube master batch and preparation method and application thereof |
-
1996
- 1996-05-06 CN CN 96104848 patent/CN1136051A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072738C (en) * | 1997-09-04 | 2001-10-10 | 中国石化扬子石油化工公司 | Method for preparing material for production of polypropylene fibers |
| CN111171430A (en) * | 2020-02-18 | 2020-05-19 | 江西铜业技术研究院有限公司 | Easily-dispersible carbon nanotube master batch and preparation method and application thereof |
| CN111171430B (en) * | 2020-02-18 | 2022-03-25 | 江西铜业技术研究院有限公司 | Easily-dispersible carbon nanotube master batch and preparation method and application thereof |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |