CN106315546A - Preparation method of silicon carbide plastic film opening agent - Google Patents
Preparation method of silicon carbide plastic film opening agent Download PDFInfo
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- CN106315546A CN106315546A CN201510341524.1A CN201510341524A CN106315546A CN 106315546 A CN106315546 A CN 106315546A CN 201510341524 A CN201510341524 A CN 201510341524A CN 106315546 A CN106315546 A CN 106315546A
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Abstract
The invention discloses a preparation method of a silicon carbide plastic film opening agent. The preparation method comprises that SiC and concentrated sulfuric acid as raw materials undergo a precipitation reaction, a certain amount of SiC and an additive are added into a reactor, the materials are uniformly stirred and are heated, concentrated sulfuric acid with a certain concentration is added into the reaction liquid drop by drop under stirring until solution pH is 9, the system is subjected to thermal insulation for 30-60min and then is continuously heated, a proper amount of sulfuric acid and a SiC solution are added into the system drop by drop according to a certain ratio under stirring, the solution pH is kept at 10, and the product is washed, filtered and dried so that SiC opening agent powder is obtained. The product has an oil absorption value of 1.01mL/g the same to that of the imported product widely used at present. The preparation method has mild technical processes. The product is powder with the particle sizes of about 6-10 microns, is free of a crushing process and has a low production cost.
Description
Technical field
The present invention relates to Material Field, the preparation method of a kind of carborundum plastic film open agent.
Background technology
Plastic film open agent has following three generation products: first on behalf of Pulvis Talci, kieselguhr, calcium hydrogen phosphate etc., and its shortcoming is opening poor-performing, and addition affects the physical and chemical performances such as the optics of plastic sheeting.Second on behalf of oleamide and ethylene bis stearamide derivant etc., and its shortcoming is that organic opening agent precipitate is attached to film surface, affects the printing of thin film, heat sealability and color, also affects its safety as packaging material for food.The third generation is synthetic silica, its advantage is that opening is functional, nontoxic, addition can also improve hot strength and the tension fracture elongation rate of plastic sheeting, the serviceability and the physical property that make plastic sheeting are improved, reduce the production cost of thin film, the most most widely applied, for main product both domestic and external.
Summary of the invention
It is an object of the invention to provide the preparation method of a kind of carborundum plastic film open agent.
The technical scheme is that and be achieved in that: the preparation method of carborundum plastic film open agent, the precipitation carried out for raw material with SiC and concentrated sulphuric acid, a certain amount of SiC and additive are added in reactor, heat up after stirring, under stirring, dripping certain density concentrated sulphuric acid to the pH value of solution in reactant liquor is 9, by 30-60 minute follow-up temperature of continuing rising of above-mentioned architecture heat preservation, appropriate sulphuric acid and SiC is dripped in proportion under stirring, and to maintain the pH value of solution be 10, product is washed, filter, be dried, obtain SiC opening agent powder body.The granularity of described SiC is 100-150nm.The mass ratio of sulphuric acid and SiC is 5:1.
The invention have the benefit that prepared product oil factor is 1.01mL/g, more consistent with the imported product being widely used at present.These method process conditions are gentle, and products therefrom is 6-10 μm left and right powder body, it is not necessary to pulverizing, production cost is low.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further explained explanation.
The preparation method of carborundum plastic film open agent, the precipitation carried out for raw material with SiC and concentrated sulphuric acid, a certain amount of SiC and additive are added in reactor, heat up after stirring, under stirring, dripping certain density concentrated sulphuric acid to the pH value of solution in reactant liquor is 9, by 30-60 minute follow-up temperature of continuing rising of above-mentioned architecture heat preservation, appropriate sulphuric acid and SiC is dripped in proportion under stirring, and to maintain the pH value of solution be 10, product is washed, filter, be dried, obtain SiC opening agent powder body.The granularity of described SiC is 100-150nm.The mass ratio of sulphuric acid and SiC is 5:1.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope of present disclosure; according to technical scheme and inventive concept equivalent or change in addition thereof, all should contain within protection scope of the present invention.
Claims (3)
1. the preparation method of carborundum plastic film open agent, it is characterized in that, the precipitation carried out for raw material with SiC and concentrated sulphuric acid, a certain amount of SiC and additive are added in reactor, heat up after stirring, under stirring, dripping certain density concentrated sulphuric acid to the pH value of solution in reactant liquor is 9, by 30-60 minute follow-up temperature of continuing rising of above-mentioned architecture heat preservation, appropriate sulphuric acid and SiC is dripped in proportion under stirring, and to maintain the pH value of solution be 10, product washed, filter, be dried, obtain SiC opening agent powder body.
The preparation method of carborundum plastic film open agent the most according to claim 1, it is characterised in that the granularity of described SiC is 100-150nm.
The preparation method of carborundum plastic film open agent the most according to claim 1, it is characterised in that the mass ratio of sulphuric acid and SiC is 5:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510341524.1A CN106315546A (en) | 2015-06-19 | 2015-06-19 | Preparation method of silicon carbide plastic film opening agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510341524.1A CN106315546A (en) | 2015-06-19 | 2015-06-19 | Preparation method of silicon carbide plastic film opening agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106315546A true CN106315546A (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510341524.1A Pending CN106315546A (en) | 2015-06-19 | 2015-06-19 | Preparation method of silicon carbide plastic film opening agent |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5908890A (en) * | 1997-08-08 | 1999-06-01 | Cr Minerals Corporation | Antiblock agent for polyolefin films |
| US20040087682A1 (en) * | 1999-06-30 | 2004-05-06 | Minerals Technologies Inc. | Talc antiblock compositions and method of preparation |
| CN101280127A (en) * | 2008-06-02 | 2008-10-08 | 通化双龙化工股份有限公司 | Preparation of silicon dioxide for plastic film anti-block agent |
| CN102372272A (en) * | 2011-08-15 | 2012-03-14 | 万载县辉明化工有限公司 | Preparation method of silicon dioxide for plastic film opening agent |
| CN104098104A (en) * | 2014-07-18 | 2014-10-15 | 冷水江三A新材料科技有限公司 | Preparation method of plastic film anti-blocking agent prepared by sodium alumino silicate |
-
2015
- 2015-06-19 CN CN201510341524.1A patent/CN106315546A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5908890A (en) * | 1997-08-08 | 1999-06-01 | Cr Minerals Corporation | Antiblock agent for polyolefin films |
| US20040087682A1 (en) * | 1999-06-30 | 2004-05-06 | Minerals Technologies Inc. | Talc antiblock compositions and method of preparation |
| CN101280127A (en) * | 2008-06-02 | 2008-10-08 | 通化双龙化工股份有限公司 | Preparation of silicon dioxide for plastic film anti-block agent |
| CN102372272A (en) * | 2011-08-15 | 2012-03-14 | 万载县辉明化工有限公司 | Preparation method of silicon dioxide for plastic film opening agent |
| CN104098104A (en) * | 2014-07-18 | 2014-10-15 | 冷水江三A新材料科技有限公司 | Preparation method of plastic film anti-blocking agent prepared by sodium alumino silicate |
Non-Patent Citations (1)
| Title |
|---|
| 陈优霞等: ""沉淀法二氧化硅塑料薄膜开口剂的研制"", 《塑料工艺》 * |
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Application publication date: 20170111 |