CN102924791A - Plastic granules dedicated for cleaning screw rod and cylinder, and preparation method of plastic granules - Google Patents
Plastic granules dedicated for cleaning screw rod and cylinder, and preparation method of plastic granules Download PDFInfo
- Publication number
- CN102924791A CN102924791A CN2012104743396A CN201210474339A CN102924791A CN 102924791 A CN102924791 A CN 102924791A CN 2012104743396 A CN2012104743396 A CN 2012104743396A CN 201210474339 A CN201210474339 A CN 201210474339A CN 102924791 A CN102924791 A CN 102924791A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- plastic grain
- barrel
- sebs
- sbs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
Abstract
The invention provides plastic granules dedicated for cleaning a screw rod and a cylinder, and a preparation method of the plastic granules. The plastic granules are prepared from the following raw materials in percentage by weight: 20-40% of polyethylene (PE) with melt index below 2 g/10 min, 20-40% of styrene-butadiene-styrene block copolymer (SBS) or styrene-ethylene-butadiene-styrene block copolymer (SEBS) with melt index of below 2 g/10 min, one or more 20-60% of talc powder, wollastonite and calcium carbonate, and 5-10% of white oil. The plastic granules disclosed by the invention can effectively clear away carbon deposit and residual material on the screw rod and the cylinder, and has the characteristics of high cleaning efficiency, low cost, wide application range, high safety and reliability and the like.
Description
Technical field
The invention belongs to field of plastics processing, especially relate to a kind of plastic grain that is specifically designed to cleaning screw rod and barrel and preparation method thereof.
Background technology
In field of plastics processing, usually use same device of plastic processing to produce the plastics of different colours, when needs were changed the color of the plastics produce, the plastics of front a kind of color had residual at the screw rod of processing units and barrel, and these residual plastic are difficult to remove; Or the plastics carbide (carbon distribution) that produces after the long-time heating, these carbide also can remain on screw rod and the barrel.The situation of the bad orders such as colour mixture, stain appears in the product that below either way can cause processing subsequently, thereby causes the generation of unacceptable product.
For addressing the above problem, usually all be directly to use plastic raw materials that screw rod and barrel are cleaned in the prior art, need to expend the shortcoming that a lot of starting material just can clean up but there is, and wash number be many, not only waste plastic raw materials, and lost labor and water power; For example, clean a clamp force and be 168 tons injection moulding machine, clean to oldlace from black and will clean several times the plastics in the injection moulding machine are residual, at least consume 9.5Kg oldlace plastic raw materials, by 20 yuan of calculating of every kilogram of oldlace plastic raw materials, once change the used up plastic raw materials cost of color and can reach 190 yuan, said nothing of the artificial and electric energy that in cleaning process, consumes.
In addition, also often use now some chemicals on the market, such as the RONGFENG board special efficacy screw cleaning agent of the flourish Feng in Guangdong Province Plastic Products Co., Ltd production, the KINGPONT board screw rod material pipe clean-out system that Industrial Co., Ltd. of Shanghai warship nation produces etc., these chemicals are sprayed at also can play the effect of cleaning screw rod and barrel on the residual plastic.But this clean-out system smell is larger, and cleaning performance is general, and the more important thing is has corrosive nature to screw rod and barrel.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of energy-efficient, safe and reliable plastic grain that is specifically designed to cleaning screw rod and barrel and preparation method thereof is provided.
The technical solution used in the present invention is:
A kind of plastic grain that cleans screw rod and barrel that is specifically designed to, raw material by following weight percent is prepared from: the PE of 20-40% (polyethylene), the SBS of 20-40% (styrene-butadiene-styrene block copolymer) or SEBS (polystyrene-poly ethene-polybutene-polystyrene block copolymer), the inorganic powder of 20-60% and the white oil of 5-10%, the weight percent sum of above-mentioned raw materials is 100%;
Preferably, this plastic grain is prepared from by the raw material of following weight percent: the PE of 25-35%, and the SBS of 20-30% or SEBS, 3040% inorganic powder and the white oil of 5-10%, the weight percent sum of above-mentioned raw materials is 100%;
Preferably, this plastic grain is prepared from by the raw material of following weight percent: 30% PE, 25% SBS or SEBS, 40% inorganic powder and 5% white oil;
Preferably, the melting index of described PE is lower than 2g/10min;
Preferably, the melting index of described SBS or SEBS is lower than 2g/10min;
Preferably, described inorganic powder size is between 600 orders-1250 order, and described inorganic powder is one or more in talcum powder, wollastonite or the calcium carbonate.
A kind of preparation method who is specifically designed to the plastic grain that cleans screw rod and barrel comprises the steps:
(1) take by weighing respectively by mass percentage SBS or the inorganic powder of SEBS, 20-60% and the white oil of 5-10% of PE, the 20-40% of 20-40%, the weight percent sum of described raw material is 100%;
(2) PE after the weighing, SBS or SEBS, inorganic powder and white oil are mixed to get mixture;
(3) feed screw that starts twin screw extruder makes the mixture in the step (2) enter extruding machine barrel, and melting under the engagement of heating and screw rod is extruded rear water-cooled, dried up, pelletizing gets final product.
Wherein, the heating and temperature control of described step (3) is at 180-230 ℃.
Compared with prior art, the advantage and the positively effect that have of the present invention is:
1), the product of the present invention amount of only need to consuming seldom just can clean up screw rod or barrel, the consumption of product of the present invention be direct 1/7-1/8 with plastic raw materials cleaning consumption.
2), because the kind of plastics is very various, when selecting cleaning material, also will consider the problem of consistency, and the plastics such as product of the present invention and PP, PE, PVC, TPV, ABS, PS, ASA, TPE, PC have certain consistency.
3), product of the present invention is to adopt physical method to clean, and is nonpoisonous and tasteless, can not corrode screw rod, cleaning performance is remarkable.
4), product of the present invention has the cost of saving, applied widely, safe and reliable and cleaning efficiency high.
Embodiment
The invention will be further described below in conjunction with specific embodiment, but do not limit protection scope of the present invention.
Embodiment 1
A kind of plastic grain that cleans screw rod and barrel that is specifically designed to, composition of raw materials is as follows: the melting index of 30% (weight percent) is lower than the PE of 2g/10min, the melting index of 25% (weight percent) is lower than the SEBS of 2g/10min, the white oil of the talcum powder and 5% (weight percent) of the size of 40% (weight percent) between 600 orders-1250 order.
The above-mentioned preparation method who is specifically designed to the plastic grain that cleans screw rod and barrel comprises the steps:
S01: PE, the SEBS, talcum powder and the white oil that take by weighing above-mentioned formula ratio;
S02: the PE after the weighing, SEBS, talcum powder and white oil are mixed to get mixture;
S03: the mixture that starts among the feed screw step S02 of twin screw extruder enters extruding machine barrel, and this mixture is heated to 200 ℃ and melting and mixing under the engagement of screw rod in barrel, extrudes rear water-cooled, dries up, pelletizing gets final product.
The working process of embodiment 1: the above-mentioned plastic grain of standard consumption as shown in table 1 is joined in the middle of the equipment to be cleaned, the working temperature of setting equipment to be cleaned is the arbitrary value between 180-360 ℃, and starting outfit is namely finished cleaning process with discharging in the above-mentioned plastic grain slave unit.
The standard consumption of table 1 embodiment 1
Table 2 is the plastic grain that uses present embodiment 1 preparation and the cost contrast table that uses plastic raw materials to clean, and on 168 tons injection moulding machine, switching to oldlace ABS from black ABS is example take clamp force:
Table 2 uses embodiment 1 and the cost contrast table that uses plastic raw materials to clean
Consult table 2, use present embodiment can save 77.68% cost nearly with respect to direct use plastic raw materials to the method that screw rod and barrel clean, also can effectively reduce cost of labor, energy consumption and fraction defective simultaneously.
More than one embodiment of the present of invention are had been described in detail, but described content only is preferred embodiment of the present invention, can not be considered to be used to limiting practical range of the present invention.All equalizations of doing according to the present patent application scope change and improve etc., all should still belong within the patent covering scope of the present invention.
Claims (8)
1. one kind is specifically designed to the plastic grain that cleans screw rod and barrel, it is characterized in that: this plastic grain is prepared from by the raw material of following weight percent: the PE of 20-40%, the SBS of 20-40% or SEBS, 20-60% inorganic powder and the white oil of 5-10%, the weight percent sum of above-mentioned raw materials is 100%.
2. the plastic grain that cleans screw rod and barrel that is specifically designed to according to claim 1, it is characterized in that: this plastic grain is prepared from by the raw material of following weight percent: the PE of 25-35%, the SBS of 20-30% or SEBS, 30-40% inorganic powder and the white oil of 5-10%, the weight percent sum of above-mentioned raw materials is 100%.
3. the plastic grain that cleans screw rod and barrel that is specifically designed to according to claim 2, it is characterized in that: this plastic grain is prepared from by the raw material of following weight percent: 30% PE, 25% SBS or SEBS, 40% inorganic powder and 5% white oil.
4. each described plastic grain that cleans screw rod and barrel that is specifically designed to according to claim 1-3, it is characterized in that: the melting index of described PE is lower than 2g/10min.
5. each described plastic grain that cleans screw rod and barrel that is specifically designed to according to claim 1-4, it is characterized in that: the melting index of described SBS or SEBS is lower than 2g/10min.
6. each described plastic grain that cleans screw rod and barrel that is specifically designed to according to claim 1-5, it is characterized in that: described inorganic powder size is between 600 orders-1250 order, and described inorganic powder is one or more in talcum powder, wollastonite or the calcium carbonate.
7. a method for preparing each plastic grain of claim 1-6 is characterized in that: comprise the steps:
(1) take by weighing respectively by mass percentage SBS or the inorganic powder of SEBS, 20-60% and the white oil of 5-10% of PE, the 20-40% of 20-40%, the weight percent sum of described raw material is 100%;
(2) PE after the weighing, SBS or SEBS, inorganic powder and white oil are mixed to get mixture;
(3) feed screw that starts twin screw extruder makes the mixture in the step (2) enter extruding machine barrel, and melting under the engagement of heating and screw rod is extruded rear water-cooled, dried up, pelletizing gets final product.
8. preparation method according to claim 7, it is characterized in that: the heating and temperature control of described step (3) is at 180-230 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104743396A CN102924791A (en) | 2012-11-21 | 2012-11-21 | Plastic granules dedicated for cleaning screw rod and cylinder, and preparation method of plastic granules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104743396A CN102924791A (en) | 2012-11-21 | 2012-11-21 | Plastic granules dedicated for cleaning screw rod and cylinder, and preparation method of plastic granules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102924791A true CN102924791A (en) | 2013-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104743396A Pending CN102924791A (en) | 2012-11-21 | 2012-11-21 | Plastic granules dedicated for cleaning screw rod and cylinder, and preparation method of plastic granules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102924791A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104059284A (en) * | 2014-06-16 | 2014-09-24 | 蓝星（成都）新材料有限公司 | Cleaning material for plastic processing equipment and preparation method thereof |
| CN104277484A (en) * | 2014-10-25 | 2015-01-14 | 安徽杰奥玛克合成材料科技有限公司 | Special corrosion-resistant geogrid and preparation method thereof |
| CN105001481A (en) * | 2015-03-31 | 2015-10-28 | 天津金发新材料有限公司 | Special general polymer material for machine cleaning and preparation method thereof |
| CN106366476A (en) * | 2016-08-26 | 2017-02-01 | 江苏金发科技新材料有限公司 | Cleanser for colored plastic processing equipment and preparation method for same |
| CN107488333A (en) * | 2016-06-13 | 2017-12-19 | 天津百塑行新材料科技开发有限公司 | A kind of plastic screw cleaning agent |
| CN109776936A (en) * | 2019-01-25 | 2019-05-21 | 东莞市豪准金属制品有限公司 | A kind of high molecule plastic washing machine material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0497805A (en) * | 1990-08-15 | 1992-03-30 | Chisso Corp | Washing composition and preparation thereof |
| WO1999056926A1 (en) * | 1998-05-07 | 1999-11-11 | Eval Company Of America | Polymer cleaning compositions and methods |
| JP2009249559A (en) * | 2008-04-09 | 2009-10-29 | Techno Plus:Kk | Resin composition for cleaning plastic molding machine |
-
2012
- 2012-11-21 CN CN2012104743396A patent/CN102924791A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0497805A (en) * | 1990-08-15 | 1992-03-30 | Chisso Corp | Washing composition and preparation thereof |
| WO1999056926A1 (en) * | 1998-05-07 | 1999-11-11 | Eval Company Of America | Polymer cleaning compositions and methods |
| JP2009249559A (en) * | 2008-04-09 | 2009-10-29 | Techno Plus:Kk | Resin composition for cleaning plastic molding machine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104059284A (en) * | 2014-06-16 | 2014-09-24 | 蓝星（成都）新材料有限公司 | Cleaning material for plastic processing equipment and preparation method thereof |
| CN104277484A (en) * | 2014-10-25 | 2015-01-14 | 安徽杰奥玛克合成材料科技有限公司 | Special corrosion-resistant geogrid and preparation method thereof |
| CN105001481A (en) * | 2015-03-31 | 2015-10-28 | 天津金发新材料有限公司 | Special general polymer material for machine cleaning and preparation method thereof |
| CN105001481B (en) * | 2015-03-31 | 2017-11-07 | 天津金发新材料有限公司 | A kind of universal polymer washing machine PP Pipe Compound and preparation method thereof |
| CN107488333A (en) * | 2016-06-13 | 2017-12-19 | 天津百塑行新材料科技开发有限公司 | A kind of plastic screw cleaning agent |
| CN106366476A (en) * | 2016-08-26 | 2017-02-01 | 江苏金发科技新材料有限公司 | Cleanser for colored plastic processing equipment and preparation method for same |
| CN109776936A (en) * | 2019-01-25 | 2019-05-21 | 东莞市豪准金属制品有限公司 | A kind of high molecule plastic washing machine material and preparation method thereof |
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Application publication date: 20130213 |