CN103407169A - Textured yarn long-fiber reinforced thermoplastic plastic granules and production method thereof - Google Patents
Textured yarn long-fiber reinforced thermoplastic plastic granules and production method thereof Download PDFInfo
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- CN103407169A CN103407169A CN2013102687269A CN201310268726A CN103407169A CN 103407169 A CN103407169 A CN 103407169A CN 2013102687269 A CN2013102687269 A CN 2013102687269A CN 201310268726 A CN201310268726 A CN 201310268726A CN 103407169 A CN103407169 A CN 103407169A
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Abstract
The invention discloses textured yarn long-fiber reinforced thermoplastic plastic granules and a production method of the textured yarn long-fiber reinforced thermoplastic plastic granules. The thermoplastic granules consist of thermoplastic plastic base bodies and continuous textured yarn long fibers, wherein thermoplastic plastics are fused and dip-coated on surfaces of textured yarns. According to the invention, the special LFT (long fiber thermoplastics), namely the textured yarns, is introduced, and the lengths of a majority part of reinforced fibers are greater than the lengths of the granules, so that the product provided by the invention has a more excellent mechanical performance, and especially the shearing-resistant performance is particularly obvious; secondly, because according to the invention, continuous fiber reinforced materials and the textured yarns are adopted, the special fiber state of the continuous fiber reinforced materials and the textured yarns enables the continuous fiber reinforced materials and the textured yarns to be dipped more easily by plastic fusion bodies in an extruding machine head, while the continuous fiber yarns are adopted as the common LFT, yarn bundles are difficult to be separated effectively after single-yarn bundles enter the machine head, the continuous fiber yarns are more difficult to dip by the plastic fusion bodies; thirdly, because the textured yarns in the granules are in yarn-coil-shaped three-dimensional distribution, compared with the parallel bundled distribution of reinforced fibers in the common LFT, the textured yarn long-fiber reinforced thermoplastic plastic granules have the better processing technology performance and the better mechanical performance.
Description
Technical field
The present invention relates generally to the glass fiber compound material technical field.
Background technology
At present, fiber reinforced thermoplastics (RFTP) development speed is much larger than fiber reinforced thermoset plastics (RFP), and especially the LFT development is more outstanding.But in Long-fiber-reinforced thermoplastics material grain LFT, the parallel pellet axle of fortifying fibre fasciculation in pellet distributes at present, and fortifying fibre length and pellet are equal in length.Based on the domestic industry material horizontal, in LFT, fortifying fibre is undesirable by the plastics infiltration situation, often affects its process industrial art performance and product properties.In RFTP, fortifying fibre length, draw ratio size, fiber is evenly distributed and the fiber condition lamp directly affects its mechanical property.
Summary of the invention
Goal of the invention: for the problem and shortage of above-mentioned existing existence, a kind of textured yarn Long-fiber-reinforced thermoplastics pellet and production method thereof have been the purpose of this invention is to provide, wherein the length of fortifying fibre textured yarn is greater than pellet length, and is mixed and disorderly distribution, has better mechanical property.
Technical scheme: for achieving the above object, the present invention is by the following technical solutions: a kind of textured yarn Long-fiber-reinforced thermoplastics pellet, this thermoplastic pellets is comprised of thermoplastic matrix and continuous modification yarn long fibre, and wherein the thermoplastic molten dip-coating is on the textured yarn surface.
Described continuous modification yarn long fibre is bulked glass yarn.
Described thermoplastic matrix material is a kind of in PP, PE, PVC, PA.
Another purpose of the present invention provides a kind of production method of above-mentioned textured yarn Long-fiber-reinforced thermoplastics pellet, comprise the following steps: step 1, the thermoplastic matrix material is sent in extruder and heated, plastifies, form plastic molten mass and also enter extruder head; Step 2, continuous modification yarn long fibre is sent into to cross-head, after in extruder head, fully being flooded, wrap up by plastic molten mass, be extruded head and form material strip; Step 3, above-mentioned material strip, under the traction of draw-gear, are left head continuously; And at first carry out water cooling, then air-cooled by air, and the moisture of adsorption while removing water cooling, finally send into the pelleter pelletizing, get final product.
As preferably, described extruder adopts single screw extrusion machine.
Beneficial effect: compared with prior art, the present invention has the following advantages: the present invention introduces this special LFT of textured yarn, there is considerable part fortifying fibre length to be greater than pellet length, this is that common LFT is beyond one's reach, make goods of the present invention have more excellent mechanical property, especially anti-shear performance is more outstanding; Secondly also because the present invention adopts continuous fiber reinforcing material and textured yarn, its fiber specific form is more easily infiltrated it by plastic molten mass in extruder head, and common LFT adopts the continuous fiber yarn, because the monofilament boundling enters yarn bundle after head, be difficult to effectively separately, therefore by plastic molten mass, infiltrated more difficult; The 3rd, due to textured yarn, be the distributed in three dimensions of yarn round in pellet, compare the parallel pencil of fortifying fibre in common LFT and distribute, have better process industrial art performance and mechanical property.
The accompanying drawing explanation
Fig. 1 is the cross-sectional view of thermoplastic pellet of the present invention;
Fig. 2 is the technological process of production schematic diagram of thermoplastic pellet of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only is not used in and limits the scope of the invention be used to the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Textured yarn Long-fiber-reinforced thermoplastics pellet production technology of the present invention is as follows:
At first, with reference to Fig. 2, by thermoplastic base-material PP(pellet or powder) send into extruder and carry out heating plasticizing, form plastic molten mass and clamp-on extruder head.As preferably, extruder adopts single screw extrusion machine, and equipment cost is lower.
Then, continuous modification yarn long fibre is sent into to extruder head, make it in head, fully be flooded, wrap up afterwards by the thermoplastic molten body and be extruded into material strip.As preferred version, continuous modification yarn long fibre is selected the glass fibre (GF) of producing through fiber size for reinforcemeent.The bulked glass yarn of the high bulking degree that process high-performance bulking machine processes, the high bulking uniformity, high bulking intensity retention is done reinforcing material.Another preferred version, carry out preheating to the continuous fiber textured yarn, while making it enter extruder head and thermoplastic molten body temperature is poor reduces, to improve the wellability of the two.
Finally; under the traction of draw-gear; material strip is left extruder head continuously; at first pass through water cooling; so that thermoplastic solidifies, cooling after through air moisture air-cooled and material strip adsorption while removing water cooling, after through pelleter, carry out pelletizing; finally carry out some necessary processing, collecting packing becomes product.Also can before pelletizing, carry out rolling, then pelletizing to material strip.
In the textured yarn Long-fiber-reinforced thermoplastics pellet prepared by said method, the physical length of glass textured yarn is greater than pellet length, and in thermoplastic, is the distributed in three dimensions of lint wire ring shape, makes the shear strength of material better.
Claims (5)
1. textured yarn Long-fiber-reinforced thermoplastics pellet, it is characterized in that: this thermoplastic pellets is comprised of thermoplastic matrix and continuous modification yarn long fibre, and wherein the thermoplastic molten dip-coating is on the textured yarn surface.
2. textured yarn Long-fiber-reinforced thermoplastics pellet according to claim 1, it is characterized in that: described continuous modification yarn long fibre is bulked glass yarn.
3. textured yarn Long-fiber-reinforced thermoplastics pellet according to claim 2 is characterized in that: described thermoplastic matrix material is a kind of in PP, PE, PVC, PA.
4. the production method of the arbitrary described textured yarn Long-fiber-reinforced thermoplastics pellet of claim 1～3 comprises the following steps:
Step 1, the thermoplastic matrix material is sent in extruder and heated, plastifies, form plastic molten mass and also enter extruder head;
Step 2, continuous modification yarn long fibre is sent into to cross-head, after in extruder head, fully being flooded, wrap up by plastic molten mass, be extruded head and form material strip;
Step 3, above-mentioned material strip, under the traction of draw-gear, are left head continuously; And at first carry out water cooling, then air-cooled by air, and the moisture of adsorption while removing water cooling, finally send into the pelleter pelletizing, get final product.
5. the production method of described textured yarn Long-fiber-reinforced thermoplastics pellet according to claim 4, it is characterized in that: described extruder adopts single screw extrusion machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013102687269A CN103407169A (en) | 2013-06-28 | 2013-06-28 | Textured yarn long-fiber reinforced thermoplastic plastic granules and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102687269A CN103407169A (en) | 2013-06-28 | 2013-06-28 | Textured yarn long-fiber reinforced thermoplastic plastic granules and production method thereof |
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| CN103407169A true CN103407169A (en) | 2013-11-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921456A (en) * | 2014-04-24 | 2014-07-16 | 王冠立 | Long-fiber-reinforced thermoplastic plastic on-line forming device |
| CN106113529A (en) * | 2016-06-17 | 2016-11-16 | 句容市百事特复合材料有限公司 | A kind of processing method of GFRTP material strip |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313181A (en) * | 2000-03-14 | 2001-09-19 | 株式会社神户制钢所 | Fiber reinforced thermoplastic resin sheets and manufacture thereof |
| CN102329517A (en) * | 2011-07-26 | 2012-01-25 | 句容市百事特复合材料有限公司 | Long and short fiber hybrid reinforced plastic granule and production method thereof |
| CN102329518A (en) * | 2011-07-26 | 2012-01-25 | 句容市百事特复合材料有限公司 | Textured yarn continuous fiber reinforced plastic grain and producing method thereof |
-
2013
- 2013-06-28 CN CN2013102687269A patent/CN103407169A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313181A (en) * | 2000-03-14 | 2001-09-19 | 株式会社神户制钢所 | Fiber reinforced thermoplastic resin sheets and manufacture thereof |
| CN102329517A (en) * | 2011-07-26 | 2012-01-25 | 句容市百事特复合材料有限公司 | Long and short fiber hybrid reinforced plastic granule and production method thereof |
| CN102329518A (en) * | 2011-07-26 | 2012-01-25 | 句容市百事特复合材料有限公司 | Textured yarn continuous fiber reinforced plastic grain and producing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921456A (en) * | 2014-04-24 | 2014-07-16 | 王冠立 | Long-fiber-reinforced thermoplastic plastic on-line forming device |
| CN106113529A (en) * | 2016-06-17 | 2016-11-16 | 句容市百事特复合材料有限公司 | A kind of processing method of GFRTP material strip |
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Application publication date: 20131127 |