CN101537713A - Light jute fiber reinforced polypropylene alloy composite plate and machining process thereof - Google Patents
Light jute fiber reinforced polypropylene alloy composite plate and machining process thereof Download PDFInfo
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- CN101537713A CN101537713A CN200810019864A CN200810019864A CN101537713A CN 101537713 A CN101537713 A CN 101537713A CN 200810019864 A CN200810019864 A CN 200810019864A CN 200810019864 A CN200810019864 A CN 200810019864A CN 101537713 A CN101537713 A CN 101537713A
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Abstract
The invention relates to a light jute fiber reinforced polypropylene alloy composite plate. Main raw materials of the composite plate are jute and a polymer material. In a manufacturing process, polypropylene, polyethylene, compatibilizer (such as reactive-type polymer compatibilizer MPP), toughening agent (such as rubber-like EPDM ) and filler are added to the polymer alloy raw material, wherein the filler is talcum powder, CaCO3, lubricant (WAX), foaming agent (AC) for facilitating lightweight foaming, cross-linking agent (DCP) and the like. The composite plate is manufactured through a special machining process. Because various raw materials adopted in the invention are all nontoxic, no pollution can be caused to workshops or ecological environment during manufacture; due to pipeline operation, no raw materials can be wasted; due to the special machining process and coupling-agent treatment performed on the related raw materials, all performance indexes of a light jute fiber reinforced low-foamed alloy plate are greatly improved; and due to the promotion of product performance, the composite plate can be used to be made into automobile inner decoration materials in various shapes, and can be particularly used as an automobile ceiling, a front/back top plate, a back panel, a side panel, an airduct and the like.
Description
Technical field
The present invention relates to a kind of automobile decoration material product processing technology of novelty, especially a kind of sheet material processing technology, more specifically say so a kind of " light jute fiber reinforced polypropylene alloy composite plate " and processing technology thereof.
Background technology
The applicant once succeeded in developing " the compound numb felt plate of high rigidity high-quality " and 2007 " macromolecule modified flax and plastic alloy plate " in 2006, these two kinds of sheet materials all are to be used for automotive interior material.Domestic automotive interior material in the market mainly also has: the one, and the PU foaming plate that lightweight fiberglass strengthens, the 2nd, light GMT plate (the low foaming of glass fibre enhanced polypropylene plate).Above material all respectively has characteristics separately, but all there is weak point: the PU foaming plate (polyurethane foam board that lightweight fiberglass strengthens) that lightweight fiberglass strengthens, wherein PU has certain toxicity, and glass fibre is in the dusting process, bring serious environmental to pollute, will point out that especially this material is non-renewable utilization, be not ep-type material therefore; Light GMT plate (glass fibre enhanced polypropylene low-foamed sheet), this material mainly adopts glass fibre to strengthen, though polypropylene plastics is nontoxic, from environmental-protecting performance and price evaluation is better than the PU foaming plate of lightweight fiberglass enhancing, but main existing problems are that glass fibre is in the low foaming process of RPP, bring certain environmental pollution, product rigidity is also unsatisfactory, can not regeneration for the glass fibre enhanced polypropylene low-foamed sheet of high-load; " the compound numb felt plate of high rigidity high-quality " and " macromolecule modified flax and plastic alloy plate ", the raw material fiber crops fibre of these two kinds of sheet materials is environmental types, polypropylene fibre and terylene etc. also all are nontoxic, and material cost is than above-mentioned two kinds low, but main existing problems are that product density is big.
Summary of the invention
At above existing problems, the invention provides a kind of light jute fiber reinforced polypropylene alloy composite plate product and processing technology, this composite board had both met the automotive interior material requirement, can produce in batches again.
In order to reach above purpose, the present invention by the following technical solutions, the processing technology of a kind of " light jute fiber reinforced polypropylene gold composite plate " comprises the steps:
A, numb felt are equipped with step (hereinafter to be referred as the A material)
A-1, at first fiber crops are cut off, the softening processing, shredding becomes fiber;
A-2, flaxen fiber is evenly mixed with a small amount of polyster fibre (about 10%);
A-3, with the fiber that mixes through combing, lapping, acupuncture, make numb felt thin slice;
B, various high polymer alloy material are carried out granulation, extrusion sheet, or abrasive dust, press prescription and mix (hereinafter to be referred as the B material) with blowing agent and crosslinking agent
B-1, B material prefoam sheet preparation step
1., mix: PP, PE, compatilizer, flexibilizer, blowing agent, blowing promotor, crosslinking agent, lubricant, filler etc. are pressed alloy formula weighing preparation, and mix in the adding mixer;
2., extrusion plasticizing: mixed raw material is added in the extruder, carry out extrusion plasticizing;
3., plate squeezing: the melting charge after will plastifying enters in the board mould, extrudes with plate blank material;
4., roll-in: the plate blank is entered in the three-roller of panel production line, by the dancer rools distance, the thickness of control strip;
5., cooling and shaping: the sheet material that comes out from three rollers is through cooling and shaping roller cooling and shaping;
6., the drawing-off rip cutting: the sheet material after the typing, by the width specifications requirement, carry out rip cutting simultaneously in drawing-off;
7., the shear cross cutting: the sheet material after rip cutting, send in the plate shearing machine, by the length specification requirement, carry out cross cutting;
8., stack: stacking back prefoam sheet material is the B material;
The preparation process of B-2, B material prefoam powder
1., batching: PP, PE, compatilizer, flexibilizer, lubricant, filler etc. are carried out weighing by the plastic alloy prescription;
2., mix: each raw material that will make add mixer and mix;
3., granulation: will mix in the back raw material adding extruding granulator and carry out granulation;
4., abrasive dust: the granulation material is carried out abrasive dust handle fineness≤80 orders;
5., second batch: powders such as abrasive dust material, blowing agent, crosslinking agent are pressed the prescription weighing;
6., secondary mixes: 5. be mixed into B material prefoam powder in the powder of the weighing adding mixer;
C, lamination foaming
The B material and the B material that will make in A step and B step mix in proportion, add to depress in lamination to carry out the lamination foaming for one, make " light jute fiber reinforced polypropylene alloy composite plate ".
Because technique scheme is adopted in invention, the various raw material of Zu Chenging all are nontoxic simultaneously, in manufacturing process, pollute can for workplace or ecological environment, owing to take pile line operation, can not cause waste of raw materials, secondly, adopt special processing technology, and relevant raw material are carried out coupling agent treatment, the alloy composite plate material of making, every performance indications obtain large increase; Owing to the lifting of properties of product, can be used for making the automotive interior material of different shape, especially can be used to do roof of the vehicle, top, front and back, squab panel, side panel, air channel etc.
Description of drawings
The numb felt of Fig. 1 embodiment of the invention (being called the A material) preparation technology's flow chart
The B material prefoam sheet preparation process chart of Fig. 2 embodiment of the invention
Preparation technology's flow chart of the B material foaming pellet of Fig. 3 embodiment of the invention
The stack sheet material laminating preparation technology flow chart of Fig. 4 embodiment of the invention
Dusting lamination foaming (gap method) preparation technology's flow chart of Fig. 5 embodiment of the invention
Dusting lamination foaming (continuity method) the preparation technology flow chart of Fig. 6 embodiment of the invention
The specific embodiment
Embodiment one
A kind of " light jute fiber reinforced polypropylene alloy composite plate " of the present invention production procedure specifies as follows:
1, A expects that numb felt is equipped with technology (technological process as shown in Figure 1)
1., cut off: with chopper jute is cut off, the numb length that is cut into is 10CM;
2., come unstuck softening: will be on the ground through the jute tiling of shearing, thickness is 10-15CM, the surface is smooth, add finish (quite numb weight 2%), will constantly stir fiber crops during oil supply, guarantee to come unstuck evenly, fiber crops after coming unstuck were deposited 24 hours, just can provide next procedure to use;
3., shredding: the fiber crops that will come unstuck, the feeding opener carry out shredding, numb shredding is become fiber;
4. and hair: with flaxen fiber and a small amount of terylene (about 10%) feeding mixing willow, carry out evenly mixed after, be sent to next procedure;
5., combing: will its objective is to be carded to fleece through the mixed flaxen fiber feeding of mixing willow carding machine with sending into flaxen fiber;
6., lapping: enter the lapping machine through the fleece after the combing, the effect of this procedure is every Gram Mass that control needs;
7., acupuncture: will enter needing machine through the flaxen fiber net behind the lapping machine, acupuncture becomes numb felt;
8., rolling: in the numb felt feeding lapper after the acupuncture, be the A material with numb felt roll rolling;
2, B material preparation
(1), B material prefoam sheet preparation
1., mix: PP, PE, compatilizer, flexibilizer, blowing agent, blowing promotor, crosslinking agent, lubricant, filler etc. are pressed alloy formula weighing preparation, and mix in the adding mixer;
2., extrusion plasticizing: mixed raw material is added in the extruder, carry out extrusion plasticizing;
3., plate squeezing: the melting charge after will plastifying enters in the board mould, extrudes with plate blank material;
4., roll-in: the plate blank is entered in the three-roller of panel production line, by the dancer rools distance, the thickness of control strip;
5., cooling and shaping: the sheet material that comes out from three rollers is through cooling and shaping roller cooling and shaping;
6., the drawing-off rip cutting: the sheet material after the typing, by the width specifications requirement, carry out rip cutting simultaneously in drawing-off;
7., the shear cross cutting: the sheet material after rip cutting, send in the plate shearing machine, by the length specification requirement, carry out cross cutting;
8., heap is gone into: stacking back prefoam sheet material is the B material;
(2), the preparation of B material prefoam powder
1., batching: PP, PE, compatilizer, flexibilizer, lubricant, filler etc. are carried out weighing by the plastic alloy prescription;
2., mix: each raw material that will make add mixer and mix;
3., granulation: will mix in the back raw material adding extruding granulator and carry out granulation;
4., abrasive dust: the granulation material is carried out abrasive dust handle fineness≤80 orders;
5., second batch: powders such as abrasive dust material, blowing agent, crosslinking agent are pressed the prescription weighing;
6., secondary mixes: 5. be mixed into B material prefoam powder in the powder of the weighing adding mixer;
3, lamination moulded from foam
(1), stack sheet material lamination foaming
1., reinforced: that above-mentioned A is expected that numb felt and B expect that the prefoam sheet puts into the mould of laminating machine in proportion;
2., moulded from foam: then with mold heated and pressurization, carrying out moulded from foam is " light jute fiber reinforced polypropylene alloy composite plate ";
3., stack: the product behind moulded from foam is stacked;
4., check, warehouse-in: with the product of stacking,, put and can put in storage through after the assay was approved,
(2), dusting lamination foaming
1., batch process: in the laminating machine mould, spread nonwoven earlier, B is expected that the prefoam powder sprinkles uniformly, spread A then and expect numb felt, again B is expected that the prefoam powder sprinkles uniformly, A expects numb felt and the alternately stack of B material prefoam powder, progressive die foaming under pressurized, heated like this;
2., continuity method: earlier nonwoven is drawn, with duster B is expected that the prefoam powder sprinkles uniformly, spread A then and expect numb felt, with second duster B is expected that the prefoam powder sprinkles uniformly again, lead foamable in the drying tunnel by the traction deflector roll, use two roller roll-ins then, make " light jute fiber reinforced polypropylene alloy composite plate ".
Adopt the processing technology of aforesaid " light jute fiber reinforced polypropylene alloy composite plate " to make, its main raw material(s) is jute, also added polypropylene in the process of making in the above-mentioned high polymer alloy modification, polyethylene, compatilizer (as, response type polymer-compatible agent MPP), flexibilizer (as, rubber-like EPDM), POE) and filler, described filler is talcum powder, CaCO
3, blowing agent (AC), crosslinking agent (DCP), lubricant (WAX) etc.
Further being optimized for of technique scheme: also added in described " light jute fiber reinforced polypropylene alloy composite plate " polymer substance (as PP, PE etc.), inorganic filler (as, talcum powder and CaCO
3Deng), and promote the compatilizer MPP (PP-g-MAH) of alloying.Generate the blowing agent (AC) of light weight foaming, the successful crosslinking agent (DCP) of guaranteeing to foam, and the compatilizer MPP (PP-g-MAH) of promotion alloying.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all implement in the protection domain of requirement of the present invention.
Claims (4)
1, a kind of processing technology of light jute fiber reinforced polypropylene gold composite plate comprises the steps:
A, numb felt are equipped with step (hereinafter to be referred as the A material)
A-1, at first fiber crops are cut off, the softening processing, shredding becomes fiber;
A-2, flaxen fiber is evenly mixed with a small amount of polyster fibre (about 10%);
A-3, with the fiber that mixes through combing, lapping, acupuncture, make numb felt thin slice;
B, various high polymer alloy material are carried out granulation, extrusion sheet, or abrasive dust, press prescription and mix (hereinafter to be referred as the B material) with blowing agent and crosslinking agent
B-1, B material prefoam sheet preparation step
1., mix: PP, PE, compatilizer, flexibilizer, blowing agent, blowing promotor, crosslinking agent, lubricant, filler etc. are pressed alloy formula weighing preparation, and mix in the adding mixer;
2., extrusion plasticizing: mixed raw material is added in the extruder, carry out extrusion plasticizing;
3., plate squeezing: the melting charge after will plastifying enters in the board mould, extrudes with plate blank material;
4., roll-in: the plate blank is entered in the three-roller of panel production line, by the dancer rools distance, the thickness of control strip;
5., cooling and shaping: the sheet material that comes out from three rollers is through cooling and shaping roller cooling and shaping;
6., the drawing-off rip cutting: the sheet material after the typing, by the width specifications requirement, carry out rip cutting simultaneously in drawing-off;
7., the shear cross cutting: the sheet material after rip cutting, send in the plate shearing machine, by the length specification requirement, carry out cross cutting;
8., stack: stacking back prefoam sheet material is the B material;
The preparation process of B-2, B material prefoam powder
1., batching: PP, PE, compatilizer, flexibilizer, lubricant, filler etc. are carried out weighing by the plastic alloy prescription;
2., mix: each raw material that will make add mixer and mix;
3., granulation: will mix in the back raw material adding extruding granulator and carry out granulation;
4., abrasive dust: the granulation material is carried out abrasive dust handle fineness≤80 orders;
5., second batch: powders such as abrasive dust material, blowing agent, crosslinking agent are pressed the prescription weighing;
6., secondary mixes: 5. be mixed into B material prefoam powder in the powder of the weighing adding mixer;
C, lamination foaming
The A material and the B material that will make in A step and B step mix in proportion, add to depress in lamination to carry out the lamination foaming for one, make " light jute fiber reinforced polypropylene alloy composite plate ".
2, the processing technology of a kind of light jute fiber reinforced polypropylene gold composite plate according to claim 1 is characterized in that: described lamination foaming step is stack sheet material lamination foaming step, and described stack sheet material lamination foaming step is
1., reinforced: the mould of above-mentioned A material and B material being put in proportion laminating machine;
2., moulded from foam: then with mold heated and pressurization, carrying out moulded from foam is light jute fiber reinforced polypropylene alloy composite plate;
3., stack: the product behind moulded from foam is stacked;
4., check, warehouse-in: with the product of stacking, through putting in storage after the assay was approved.
3, the processing technology of a kind of light jute fiber reinforced polypropylene gold composite plate according to claim 1, it is characterized in that: described lamination foaming step is a dusting lamination foaming step, described dusting lamination foaming step can be divided into gap method and continuity method, described gap method is in the laminating machine mould, spread nonwoven earlier, B is expected that the prefoam powder sprinkles uniformly, spread A then and expect numb felt, again B is expected that the prefoam powder sprinkles uniformly, A expects numb felt and the alternately stack of B material prefoam powder like this, and carrying out moulded from foam under pressurized, heated is light jute fiber reinforced polypropylene alloy composite plate; Described continuity method is earlier nonwoven to be drawn, with duster B is expected that the prefoam powder sprinkles uniformly, spread A then and expect numb felt, with second duster B is expected that the prefoam powder sprinkles uniformly again, lead foamable in the drying tunnel by the traction deflector roll, two roller roll-ins then get light jute fiber reinforced polypropylene alloy composite plate.
4, a kind of light jute fiber reinforced polypropylene alloy composite plate, adopted the processing technology of light jute fiber reinforced polypropylene gold composite plate as claimed in claim 1, its main raw material(s) is jute, polypropylene, polyethylene, compatilizer, flexibilizer and filler, and described filler is talcum powder, CaCO
3Blowing agent, crosslinking agent, lubricant etc.
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| CN101838423A (en) * | 2010-06-10 | 2010-09-22 | 南京聚隆科技股份有限公司 | Modified polypropylene material for thin-wall bumper and preparation method thereof |
| CN102191695A (en) * | 2011-03-09 | 2011-09-21 | 昆山博富新材料科技股份有限公司 | Dyeing bastose and modified polypropylene particle prepared from same |
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| CN102191695B (en) * | 2011-03-09 | 2013-07-31 | 昆山博富新材料科技股份有限公司 | Dyeing bastose and modified polypropylene particle prepared from same |
| CN102191695A (en) * | 2011-03-09 | 2011-09-21 | 昆山博富新材料科技股份有限公司 | Dyeing bastose and modified polypropylene particle prepared from same |
| CN102229219B (en) * | 2011-06-14 | 2013-06-05 | 宁波市阳光汽车配件有限公司 | Preparation method of nano alloy composite fiber material |
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| CN109679192B (en) * | 2019-01-07 | 2021-03-19 | 江苏环宇汽车零部件有限公司 | Foamed polyethylene-long glass fiber mixed board and preparation method thereof |
| CN109705468B (en) * | 2019-01-07 | 2021-05-14 | 江苏环宇汽车零部件有限公司 | Foamed polypropylene-long glass fiber mixed board and preparation method thereof |
| CN111269522A (en) * | 2020-04-13 | 2020-06-12 | 丹阳市日安汽车部件有限公司 | Prepreg of light glass fiber reinforced plastic wallboard and manufacturing method thereof |
| CN113580680A (en) * | 2021-07-06 | 2021-11-02 | 苏州弗瑞斯特汽车新材料有限公司 | Method for manufacturing raw hemp for automotive interior |
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