CN102604206A - Superfine talcum powder-polypropylene filled master batch, preparation method and equipment thereof - Google Patents
Superfine talcum powder-polypropylene filled master batch, preparation method and equipment thereof Download PDFInfo
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- CN102604206A CN102604206A CN2012100255622A CN201210025562A CN102604206A CN 102604206 A CN102604206 A CN 102604206A CN 2012100255622 A CN2012100255622 A CN 2012100255622A CN 201210025562 A CN201210025562 A CN 201210025562A CN 102604206 A CN102604206 A CN 102604206A
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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
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Abstract
The invention discloses a talcum powder-polypropylene filled master batch. The talcum powder-polypropylene filled master batch comprises the following components in percentage by weight: 75-85% of talcum powders, 10-15% of polypropylene materials, 0.5-0.7% of antioxidants and 1-5% of processing agents. Production equipment of the talcum powder-polypropylene filled master batch comprises a high-speed mixer, a feeding machine, a double-screw extrusion machine, a caterpillar track conveying and cooling device and a hob granulator, wherein the high-speed mixer is arranged above the feeding machine, a material outlet of the feeding machine is connected with a material inlet of the double-screw extrusion machine, a material outlet of the double-screw extrusion machine is connected with a material inlet of the caterpillar track conveying and cooling device, and a material outlet of the caterpillar track conveying and cooling device is connected with a material inlet of the hob granulator. Compared with the technology that an internal mixer is used for producing the superfine talcum powder master batch, the production equipment provided by the invention has the following advantages: the proper raw material formula, the forcing of the feeding machine, the double-screw extrusion with a deep spiral groove and a caterpillar track conveying and cooling granulation mode are adopted, so that the low-stacking-density powder can be fed into the double-screw extrusion machine with high efficiency; as the talcum powder-polypropylene filled master batch contains high inorganic powder content and the adopted spiral groove is deep, the talcum powder-polypropylene filled master batch can be conveyed conveniently; the plasticized dispersing efficiency of the talcum powder-polypropylene filled master batch is high; and the talcum powder-polypropylene filled master batch is not easy to break when adopting a water-cooling brace to granulate; and the normal granulation can be ensured.
Description
Technical field
The present invention relates to the superfine talcum powder Vestolen PP 7052 and fill the master batch preparing technical field, particularly a kind of superfine talcum powder Vestolen PP 7052 is filled master batch and preparation method and apparatus thereof.
Background technology
Talcum powder is cheap mineral filler commonly used in the plastics industry, and it can improve the dimensional stability of rigidity, modulus and the goods thereof of material effectively, and its cost is significantly reduced; Therefore, talcum powder extensively is used in the modifying plastics industry.But, owing to the bulk density of talcum powder especially superfine talcum powder is little; In the modifying plastics production process, very easily produce dust, pollute production plant, have a strong impact on the healthy of Manufacturing Worker.In addition, because talcous bulk density is little, when modified plastics adopted the processing mode of screw extrusion press to add talcum powder, the difficult feeding of material had a strong impact on production efficiency.Therefore, how to prepare the high filled polypropylene master batch of superfine talcum powder, for solving dust pollution, seeming very crucial enhancing productivity.
When producing talcum powder filling PP master batch, adopt following two kinds of methods at present in the industry usually: one, elder generation is mixing in Banbury mixer; Adding screw extrusion press again extrudes; Form through the fervent granulation mode of die face at last; Two, through high-speed mixer former material is mixed to more than 100 ℃ earlier, makes material become little lumps; Extrude through twin screw extruder again; Finally form through the fervent granulation of water ring die face.
Open day is that the Chinese invention patent of CN101955604 A discloses " a kind of polyolefin-based nano level talcum powder functional agglomerate and method of manufacture and equipment " for 2011.1.26, publication number.Mentioning method in the literary composition is present typical preparation method: adopt mixer mixing earlier; Adding screw extrusion press again extrudes; The preparation method who forms through the fervent granulation mode of die face at last.The work characteristics of Banbury mixer is: in the banburying chamber, add a certain amount of material, material is the mixing one long period in the banburying chamber, all is delivered to screw extrusion press then and carries out granulation; Then, pour certain material into toward the banburying chamber again, so successively circulation.In mixing, the process of carrying, material is in a kind of discontinuous state; In addition, because that material is in the mixing chamber of sealing is mixing, the plastifying state of material, fusion time are difficult to accurate assurance.Therefore, the level of automation of whole production line is low, and personnel labor is big, and production efficiency is low.
Open day is that the Chinese invention patent of CN102040774A discloses " a kind of Vestolen PP 7052 is filled master batch and preparation method thereof " for 2011.5.4, publication number; Mention high-speed mixer in the literary composition and add prepared in twin-screw extruder Vestolen PP 7052 filling master batch: function powder is mainly water-ground limestone and process white; Its tap density surpasses 1.0g/cm3 (tap density of superfine talcum powder is less than 0.3g/ cm3), and water-ground limestone content is no more than 70%; Therefore, in the production process of the high filling of superfine talcum powder PP, powder is difficult to coated by matrix resin; In addition, adopt high-speed mixer that the starting material pre-mixing time is surpassed 15min, greatly reduce the batch mixing efficient of high-speed mixer.
The Chinese invention patent of CN 1966562A.Adopt high-speed mixer to add the preparation method of twin screw extruder in the literary composition: the mixing functions powder agglomerate of 25 ~ 50 parts of calcium carbonate contents, 5 ~ 30 parts of superfine talcum powders; Because the tap density of lime carbonate is three times of tap density of superfine talcum powder; Therefore, the coating problem of such powder basically can be through the mixing solution of twin screw.But before getting into twin screw extruder, this former material need be through high-speed mixer with pre-composition high-speed stirring to 100 ℃ ~ 130 ℃.There are two defectives in such complete processing: 1) mixture temperature reaches the mixing time that needs more than 100 ℃ long (maybe needing heating); 2), and the partial material fusing point is arranged in the middle of the starting material of this series products about 100 ℃ owing to the temperature of high-speed mixer is controlled than difficult; Therefore, there is the agglomerating danger of caking in material, and the normal discharging of high-speed mixer is had a strong impact on.
The day for announcing is that 2011.10.12, notification number are that the Chinese patent of CN101792536 A discloses " a kind of preparation method of carrier-free talcum powder master batch ".Adopt volatile alcohol or ketone thinner in the literary composition, at first caking agent is diluted to more than 10 times; Caking agent after will diluting again and talcum powder pre-mixing by a certain percentage; At last at normal temperatures through the forcing machine extruding pelletization.There is following defective in this method: 1) thinner is difficult to reclaim, and is prone to cause environmental pollution and material wastage, and since the ratio that institute adds thinner up to 15% ~ 35%, follow-up stoving process is difficulty comparatively, the increase manufacturing cost; 2) adopt this working method resultant that the hardness of particle is very low, in follow-up transportation and use, cause the secondary dust pollution easily; 3) use this forcing machine equipment pelletizing, make that the product of being cut is different in size, the outward appearance of whole particle is very ugly, and the client is difficult to accept.
In sum, there are above-mentioned all deficiencies in the preparation method and the equipment of the master batch of Vestolen PP 7052 filling at present.
Summary of the invention
Patent of the present invention technical problem to be solved provides a kind of superfine talcum powder filled polypropylene master batch for preparing simply and improve performance.
Further, the present invention provides a kind of producing apparatus of the superfine talcum powder filled polypropylene master batch of raising the efficiency of cutting down the consumption of energy.
Further, the present invention provides the preparation method of the uniform superfine talcum powder filled polypropylene of a kind of product particle master batch.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of talcum powder Vestolen PP 7052 is filled master batch, and its composition and weight percentage are: talcum powder content is 75 ~ 85%; Polypropylene material content is 10 ~ 15%; Oxidation inhibitor is 0.5 ~ 0.7%; Processing aid is 1 ~ 5%.
Preferably, said auxiliary agent is Triple Pressed Stearic Acid and Chinese wax; Its weight percentage is: Triple Pressed Stearic Acid is 1 ~ 3%, and Chinese wax is 1 ~ 2%.
Preferably, said talcum powder median size is 2 ~ 5 microns.
Preferably, said polypropylene material is the mixing material of Vestolen PP 7052 or Vestolen PP 7052, polyolefin elastomer.
A kind of talcum powder Vestolen PP 7052 is filled the production unit of master batch, comprises high-speed mixer, feeding machine, twin screw extruder, crawler belt conveying and cooling apparatus and hobboing cutter dicing machine; Said high-speed mixer is located at the top of feeding machine; The discharge port of said feeding machine is connected with the opening for feed of twin screw extruder; The discharge port of said twin screw extruder carries with crawler belt and the opening for feed of cooling apparatus is connected, and said crawler belt is carried and the discharge port of cooling apparatus is connected with the opening for feed of hobboing cutter dicing machine.
Preferably, the external diameter of the screw rod of said twin screw extruder is 1.8 ~ 1.9 with the internal diameter ratio; The length-to-diameter ratio of said twin screw extruder is 40 ~ 48.
Preferably, said crawler belt is carried and cooling apparatus comprises crawler belt and establish drive system above that, and said drive system is used to drive this crawler belt, and said crawler belt adopts the braiding of strip metal material to form; Said drive system is the driven by motor of adjustable speed, and the LV of this motor is at 0.1m/s ~ 5m/s, but and stepless speed regulation; Said crawler belt top is provided with the pressure cooling blower, and said pressure cooling blower equidistance is arranged; Said crawler belt top also is provided with some water mist spray devices, and said water mist spray device equidistance is arranged in to be forced between the cooling blower.
Preferably, said feeding machine comprises horizontal feeding machine and vertical feeding machine, and the opening for feed of said vertical feeding machine is connected with the discharge port of horizontal feeding machine.
A kind of talcum powder Vestolen PP 7052 is filled the working method of master batch, may further comprise the steps:
Step 1) after starting material are distributed, according to the feeding sequence of PP powder, Chinese wax, Triple Pressed Stearic Acid, oxidation inhibitor, superfine talcum powder, is all put in the high-speed mixer of low rate start and is mixed;
Step 2), with in the mixed material input feeding machine;
Step 3), material are fed through feeding machine in the barrel of the good twin screw extruder of preheating, and material is in the successive shear extrusion of atwirl twin screw and mixing, mixing evenly after, extrude through the mouth mould of typing;
Step 4), the material bar of extruding hang naturally on crawler belt conveying and cooling apparatus, and through the conveying forward of crawler belt and the cooling of cooling apparatus, material is brought at last carries out pelletizing in the hobboing cutter dicing machine.
Preferably, in the step 1), material low speed mixing 0.5 ~ 1min at first in high-speed mixer; Follow mixed at high speed 5 ~ 10min with 600 ~ 1200rpm.
The present invention has following beneficial effect with respect to prior art:
1) produces superfine talcum powder master batch compared with techniques with Banbury mixer; The present invention carries and the cooling and dicing mode through adopting appropriate raw material formula, forced feed machine, dark screw channel twin screw extruder, crawler belt, makes the powder of low bulk density efficiently feed in the twin screw extruder; Because the inorganic powder content that contains in this product is high, the screw channel that the present invention adopts deeply then is convenient to the conveying of this product again; Make that this product plasticizing dispersion efficiency is high; And make when this product adopts the pelletizing of water-cooled tie rod not easily broken; Guarantee that it normally carries out pelletizing.
2) add the twin screw extruder apparatus in comparison of conventional screw channel dark (the screw rod external diameter is 1.55 with screw rod internal diameter ratio) with adopting high-speed mixer; The present invention has announced that the extra fine talc powder content is higher than the characteristic parameter that 70% o'clock twin screw extruder must possess; Guarantee that superfine talcum powder is easy to coat; And the filling content of superfine talcum powder can be higher than 70%, guarantees that the low superfine talcum powder of bulk density also can efficiently feed in the twin screw extruder, and the filling content that the invention enables superfine talcum powder is up to 85%.
3) with diluted adhesive treatment after superfine talcum powder compare with forcing machine granulation through normal temperature; Thereby need not reclaiming thinner, the present invention can not cause secondary pollution to environment; And prevent that the superfine talcum powder master batch from causing the secondary dust pollution in transportation, use, and the product particle of preparation is even, outward appearance is met customer need.
Description of drawings
Fig. 1 is the structural representation that superfine talcum powder Vestolen PP 7052 of the present invention is filled the producing apparatus of master batch.
Fig. 2 is the crawler belt handling equipment structural representation that superfine talcum powder Vestolen PP 7052 of the present invention is filled master batch.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in further detail, but the working of an invention mode is not limited thereto.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of being used to produced the equipment that the superfine talcum powder Vestolen PP 7052 is filled master batch, comprises high-speed mixer 1, feeding machine, twin screw extruder 4, crawler belt conveying and cooling apparatus 5 and hobboing cutter dicing machine 7; High-speed mixer is located at the top of feeding machine; The discharge port of feeding machine is connected with the opening for feed of twin screw extruder 4; The discharge port of twin screw extruder 4 carries with crawler belt and the opening for feed of cooling apparatus 5 is connected, and crawler belt is carried and the discharge port of cooling apparatus 5 is connected with the opening for feed of hobboing cutter dicing machine 7.The external diameter of the screw rod of twin screw extruder 4 is 1.8 ~ 1.9 with the internal diameter ratio; The length-to-diameter ratio of twin screw extruder (4) is 40 ~ 48.Crawler belt is carried and cooling apparatus comprises crawler belt and establish drive system above that, and drive system is used to drive this crawler belt.Crawler belt adopts the braiding of strip metal material to form.Drive system is the driven by motor of adjustable speed, and the LV of this motor is at 0.1m/s ~ 5m/s, but and stepless speed regulation.The crawler belt top is provided with forces cooling blower 7, and said pressure cooling blower 7 equidistance are arranged.The crawler belt top also is provided with some water mist spray devices 6, and said water mist spray device 6 equidistance are arranged in to be forced between the cooling blower 7.Mixing machine comprises tilting discharging mouth, and said tilting discharging mouth places the top of feeding bin 2.Feeding machine comprises feeding bin 9, and feeding bin 9 is a funnel-form.Feeding machine also comprises horizontal feeding machine 2 and vertical feeding machine 3, and the opening for feed of horizontal feeding machine 2 is connected with the discharge port of feeding bin 9, and the discharge port of horizontal feeding machine 2 is connected with the opening for feed of vertical feeding machine 3.
A kind of talcum powder Vestolen PP 7052 is filled master batch, and its composition and weight percentage are: talcum powder content is 75 ~ 85%; Polypropylene material content is 10 ~ 15%; Oxidation inhibitor is 0.5 ~ 0.7%; Processing aid is 1 ~ 5%.This processing aid is Triple Pressed Stearic Acid and Chinese wax; Its weight percentage is: Triple Pressed Stearic Acid is 1 ~ 3%, and Chinese wax is 1 ~ 2%.This talcum powder median size is 2 ~ 5 microns.This polypropylene material is the mixing material of Vestolen PP 7052 or Vestolen PP 7052, polyolefin elastomer.
A kind of talcum powder Vestolen PP 7052 is filled the working method of master batch, may further comprise the steps:
Step 1) after starting material are distributed, according to the feeding sequence of PP powder, Chinese wax, Triple Pressed Stearic Acid, oxidation inhibitor, superfine talcum powder, is all put in the high-speed mixer 1 of low rate start and is mixed;
Step 2), with in the mixed material input feeding machine;
Step 3), material are fed through feeding machine in the barrel of the good twin screw extruder of preheating 4, and material is in the successive shear extrusion of atwirl twin screw and mixing, mixing evenly after, extrude through the mouth mould of typing;
Step 4), the material bar of extruding hang naturally on crawler belt conveying and cooling apparatus, and through the conveying forward of crawler belt and the cooling of cooling apparatus, material is brought at last carries out pelletizing in the hobboing cutter dicing machine 7.
In the step 1), material low speed mixing 0.5 ~ 1min at first in high-speed mixer 1; Follow mixed at high speed 5 ~ 10min with 600 ~ 1200rpm.
Get 9 parts of powder Vestolen PP 7052 (PP resin), 2.5 parts of Chinese wax, 3 parts of Triple Pressed Stearic Acid, 0.5 part in oxidation inhibitor, 75 parts of superfine talcum powders drop in the mixing machine, go to high speed 1000RPM mixing 8min behind the low speed mixing 1min; Mixed material is unloaded to the feeding bin of feeding machine, and the material successive is sent in the twin screw extruder 4 (temperature of forcing machine is set: 120 ℃ in a district, 200 ~ 240 ℃ in 2 districts ~ head); Material is successively mixing through twin screw extruder 4, plasticizing is extruded into the material bar through the typing nib uniformly; The material bar is carried toward hobboing cutter dicing machine 7 directions with the pulling speed that is complementary through crawler belt; And the water yield and the air quantity of adjustment that can be suitable spray solarization on crawler belt, thereby cooling material bar; To expect at last that bar input is rolled into and carry out granulation in the hobboing cutter dicing machine 7.
Embodiment 2
Present embodiment is except that following characteristics, and other are all identical with embodiment 1: get 14 parts of powder Vestolen PP 7052 (PP resin), 2.0 parts of Chinese wax, 2.5 parts of Triple Pressed Stearic Acid, 0.5 part in oxidation inhibitor, superfine talcum powder are mixed together for 80 parts, and other equipment, technology are identical with case 1.
Embodiment 3
Present embodiment is except that following characteristics, and other are all identical with embodiment 1: get 10 parts of powder Vestolen PP 7052 (PP resin), 2.0 parts of Chinese wax, 2.5 parts of Triple Pressed Stearic Acid, 0.5 part in oxidation inhibitor, superfine talcum powder are mixed together for 85 parts, and other equipment, technology are identical with case 1.
Embodiment 4
Present embodiment is except that following characteristics; Other are all identical with embodiment 1: get 10 parts of powder Vestolen PP 7052 (PP resin), 4 parts of polyolefin elastomers (POE); 2.0 parts of Chinese wax, 2.5 parts of Triple Pressed Stearic Acid, 0.5 part in oxidation inhibitor, superfine talcum powder are mixed together for 80 parts, and other equipment, technology are identical with case 1.
The foregoing description is merely preferred embodiment of the present invention, is not to be used for limiting practical range of the present invention.Be that all equalizations of doing according to content of the present invention change and modification, all contained by claim of the present invention scope required for protection.
Claims (10)
1. a superfine talcum powder Vestolen PP 7052 is filled master batch, and it is characterized in that: its composition and weight percentage are: talcum powder content is 75 ~ 85%; Polypropylene material content is 10 ~ 15%; Oxidation inhibitor is 0.5 ~ 0.7%; Processing aid is 1 ~ 5%.
2. superfine talcum powder Vestolen PP 7052 according to claim 1 is filled master batch, and it is characterized in that: said processing aid is Triple Pressed Stearic Acid and Chinese wax; Its weight percentage is: Triple Pressed Stearic Acid is 1 ~ 3%, and Chinese wax is 1 ~ 2%.
3. talcum powder Vestolen PP 7052 according to claim 1 is filled master batch, and it is characterized in that: said talcum powder median size is 2 ~ 5 microns.
4. superfine talcum powder Vestolen PP 7052 according to claim 1 is filled the production unit of master batch, it is characterized in that: said polypropylene material is the mixing material of Vestolen PP 7052 or Vestolen PP 7052, polyolefin elastomer.
5. the production unit of a superfine talcum powder Vestolen PP 7052 filling master batch as claimed in claim 1 is characterized in that: comprise high-speed mixer (1), feeding machine, twin screw extruder (4), crawler belt conveying and cooling apparatus (5) and hobboing cutter dicing machine (7); Said high-speed mixer is located at the top of feeding machine; The discharge port of said feeding machine is connected with the opening for feed of twin screw extruder (4); The discharge port of said twin screw extruder (4) carries with crawler belt and the opening for feed of cooling apparatus (5) is connected, and said crawler belt is carried and the discharge port of cooling apparatus (5) is connected with the opening for feed of hobboing cutter dicing machine (7).
6. superfine talcum powder Vestolen PP 7052 according to claim 1 is filled the production unit of master batch, and it is characterized in that: the external diameter of the screw rod of said twin screw extruder (4) is 1.8 ~ 1.9 with the internal diameter ratio; The length-to-diameter ratio of said twin screw extruder (4) is 40 ~ 48.
7. superfine talcum powder Vestolen PP 7052 according to claim 6 is filled the production unit of master batch; It is characterized in that: said crawler belt is carried and cooling apparatus comprises crawler belt and establish drive system above that; Said drive system is used to drive this crawler belt, and said crawler belt adopts the braiding of strip metal material to form; Said drive system is the driven by motor of adjustable speed, and the LV of this motor is at 0.1m/s ~ 5m/s, but and stepless speed regulation; Said crawler belt top is provided with forces cooling blower (7), and said pressure cooling blower (7) equidistance is arranged; Said crawler belt top also is provided with some water mist spray devices (6), and said water mist spray device (6) equidistance is arranged in to be forced between the cooling blower (7).
8. superfine talcum powder Vestolen PP 7052 according to claim 1 is filled the production unit of master batch; It is characterized in that: said feeding machine comprises horizontal feeding machine (2) and vertical feeding machine (3), and the opening for feed of said vertical feeding machine (3) is connected with the discharge port of horizontal feeding machine (2).
9. fill the working method of master batch like each described superfine talcum powder Vestolen PP 7052 of claim 5-8 for one kind, it is characterized in that:
Step 1) after starting material are distributed, according to the feeding sequence of PP powder, Chinese wax, Triple Pressed Stearic Acid, oxidation inhibitor, superfine talcum powder, is all put in the high-speed mixer (1) of low rate start and is mixed;
Step 2), with in the mixed material input feeding machine;
Step 3), material are fed through feeding machine in the barrel of the good twin screw extruder of preheating (4), and material is in the successive shear extrusion of atwirl twin screw and mixing, mixing evenly after, extrude through the mouth mould of typing;
Step 4), the material bar of extruding hang naturally on crawler belt conveying and cooling apparatus, and through the conveying forward of crawler belt and the cooling of cooling apparatus, material is brought in the hobboing cutter dicing machine (7) at last carries out pelletizing.
10. superfine talcum powder Vestolen PP 7052 according to claim 8 is filled the working method of master batch, it is characterized in that: in the step 1), and material low speed mixing 0.5 ~ 1min at first in high-speed mixer (1); Follow mixed at high speed 5 ~ 10min with 600 ~ 1200rpm.
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| CN106046535A (en) * | 2016-05-31 | 2016-10-26 | 上海金发科技发展有限公司 | Scratch-resistant polypropylene composite and preparation method thereof |
| CN107082956A (en) * | 2017-05-25 | 2017-08-22 | 优矿塑新材料科技（苏州）有限公司 | A kind of talcum powder master batch |
| CN107129636A (en) * | 2017-05-25 | 2017-09-05 | 优矿塑新材料科技（苏州）有限公司 | A kind of polypropylene talcum powder master batch |
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| CN107129636A (en) * | 2017-05-25 | 2017-09-05 | 优矿塑新材料科技（苏州）有限公司 | A kind of polypropylene talcum powder master batch |
| CN107972246A (en) * | 2017-11-20 | 2018-05-01 | 滁州华美塑业有限公司 | A kind of molding machine for being used to produce Masterbatch |
| CN108359173A (en) * | 2018-01-19 | 2018-08-03 | 江西亚美达科技有限公司 | Polypropylene high-filled modified Flat Yarn Production PP Pipe Compound of one kind and preparation method thereof |
| CN108929480A (en) * | 2018-05-30 | 2018-12-04 | 广州立白企业集团有限公司 | A kind of the plastic filler parent granule composition and its production method of anti-settling |
| CN110845804A (en) * | 2019-11-22 | 2020-02-28 | 怀化东庆科技有限公司 | Polyisobutylene talcum powder master batch and preparation method thereof |
| CN113512210A (en) * | 2021-06-01 | 2021-10-19 | 诺垦(上海)新材料科技有限公司 | Reinforced master batch for foamed polystyrene and preparation method thereof |
| CN114369314A (en) * | 2021-12-29 | 2022-04-19 | 重庆普利特新材料有限公司 | High-performance thin-walled polypropylene composite material with improved sticking and preparation method thereof |
| CN114369314B (en) * | 2021-12-29 | 2023-08-29 | 重庆普利特新材料有限公司 | Polypropylene composite material capable of improving die sticking, high in performance and thin in wall and preparation method thereof |
| CN115139485A (en) * | 2022-07-01 | 2022-10-04 | 孙鑫 | Plastic master batch continuous processing method |
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Application publication date: 20120725 |