阅读说明：本技术 一种回收利用碳纤维热塑性复合材料的方法 (A method of recycling composite thermoplastic carbon fiber material ) 是由 李美连 于 2019-08-19 设计创作，主要内容包括：本发明公开了一种回收利用碳纤维热塑性复合材料的方法,包括以下步骤：S1、将废弃的碳纤维热塑性复合材料放入粉碎机内进行粉碎,粉碎后通过筛网进行筛选,将较大体积的碳纤维热塑性复合材料再次投入,直至其粉碎颗粒大小达到要求；S2、将粉碎后的颗粒废弃碳纤维热塑性复合材料投入清洗池内,添加清洁剂,通过搅拌对废弃的碳纤维热塑性复合材料进行清洁,继而通过清水再次冲洗,冲洗完毕后使用烘干机烘干。本发明采用多闭环回收碳纤维的方法制备了高性能的连续碳纤维,对碳纤维进行多次回收,不仅减少了废弃物的排放,而且降低了碳纤维复合材料的制备成本,提高了回收利用率,有利于环保。(The invention discloses a kind of methods for recycling composite thermoplastic carbon fiber material, the following steps are included: S1, discarded composite thermoplastic carbon fiber material be put into pulverizer crushing, it is screened after crushing by sieve, large volume of composite thermoplastic carbon fiber material is put into again, until its pulverized particles size reaches requirement；S2, smashed particle is discarded in composite thermoplastic carbon fiber material investment service sink, adds detergent, discarded composite thermoplastic carbon fiber material is cleaned by stirring, then rinsed again by clear water, drying machine drying is used after flushing.The present invention is prepared for high performance continuous carbon fibre using the method for more closed loops recycling carbon fiber, carbon fiber is repeatedly recycled, the discharge of waste is not only reduced, and reduces the preparation cost of carbon fibre composite, recovery utilization rate is improved, is good for the environment.)

1. a kind of method for recycling composite thermoplastic carbon fiber material, which comprises the following steps:

S1, it discarded composite thermoplastic carbon fiber material is put into pulverizer crushes, sieved after crushing by sieve Choosing, large volume of composite thermoplastic carbon fiber material is put into again, until its pulverized particles size reaches requirement；

S2, smashed particle is discarded in composite thermoplastic carbon fiber material investment service sink, adds detergent, passes through stirring Discarded composite thermoplastic carbon fiber material is cleaned, is then rinsed again by clear water, drying is used after flushing Machine drying；

S3, the composite thermoplastic carbon fiber material particle after drying is put into the mixer, then puts into thermoplastic resin, led to The heating rod crossed in mixing machine is heated, while composite thermoplastic carbon fiber material and thermoplastic resin being mixed, and has been mixed It is granulated after finishing by extruder；

S4, corresponding injection mold is chosen, hybrid particles is discharged into injection mold and carry out injection molding；

S5, it thermoplastic resin and ceramic particle is added in mixing machine mixing, it is intracavitary that plate after molding is put into casting, Then shaped object is poured, while curing agent is added；

S6, heat is carried out to the structure that entire carbon fiber, thermoplastic resin, ceramic material and curing agent form by hot-press arrangement Pressing formation process.

2. a kind of method for recycling composite thermoplastic carbon fiber material according to claim 1, which is characterized in that institute Stating sieve mesh is 1cm*0.8cm.

3. a kind of method for recycling composite thermoplastic carbon fiber material according to claim 1, which is characterized in that institute Stating heating rod heating temperature is 270 degrees Celsius -350 degrees Celsius.

4. a kind of method for recycling composite thermoplastic carbon fiber material according to claim 1, which is characterized in that institute The size for stating ceramic particle is 0-0.5mm.

5. a kind of method for recycling composite thermoplastic carbon fiber material according to claim 1, which is characterized in that institute Stating detergent is strength grease dirt cleaning agent.

6. a kind of method for recycling composite thermoplastic carbon fiber material according to claim 1, which is characterized in that institute Stating extruder is double screw extruder.

7. a kind of method for recycling composite thermoplastic carbon fiber material according to claim 1, which is characterized in that institute Stating dryer is chamber typed drying-machine.

8. a kind of method for recycling composite thermoplastic carbon fiber material according to claim 1, which is characterized in that institute Stating hot-press arrangement hot pressing temperature is 250 degrees Celsius -450 degrees Celsius.

Technical field

The present invention relates to material recovery technical field more particularly to a kind of recycle composite thermoplastic carbon fiber material Method.

Background technique

Carbon fiber not only has the intrinsic intrinsic property of carbon material, and has both the soft machinability of textile fabric, is new Generation reinforcing fiber.Carbon fiber is as organic fiber through microcrystalline graphite material obtained from carbonization and graphitization processing.Carbon fiber Microstructure similar to artificial graphite, be random graphits structure.Each carbon fiber is by thousands of more small carbon fiber institute groups At about 5 to 8 microns of diameter.It is very close with graphite in the carbon fiber of atomic scale, it is the carbon by being arranged from level to level with hexangle type Atom is constituted.Difference of them is connection between layers.Graphite is crystal structure, its interlayer connection is loose, and carbon Fiber is not crystal structure, and interlayer connection is irregular.Sliding enhancing material intensity is just prevented in this way.Generally carbon fiber is close Degree is 1750kg/m3.The capacity of heat transmission is high but the ability that conducts electricity is low, and the specific heat capacity of carbon fiber is also lower than copper.When heating, carbon Fiber can thicken and short.Although the natural colour of carbon fiber is black, it can be caught different colors.

With the continuous expansion of carbon fibre composite application field, the recycling problem of waste has also caused certain Concern.In the case where pollution and the wasting of resources are got worse, it should which the first stage applied from composite material begins to pay attention to material The selection and recycling cost of material, this is conducive to reduce cost recovery on the whole and reduces the waste in environment, closely Come, in addition to field of aerospace, continuity fibre reinforced thermoplastic composite be also gradually applied to Orthopeadic Surgery medical instrument, In the fields such as electronic apparatus, high-end industry, either from properties of product angle still from recycle angle in terms of, thermoplasticity carbon fiber The development prospect for tieing up composite material is all worthy of expecting, for this purpose, we have proposed a kind of recycling thermoplastic carbon fiber composite woods The method of material solves the above problems.

Summary of the invention

The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of recycling carbon fiber proposed The method of thermoplastic composite.

To achieve the goals above, present invention employs following technical solutions:

A method of recycling composite thermoplastic carbon fiber material, comprising the following steps:

S1, it discarded composite thermoplastic carbon fiber material is put into pulverizer crushes, sieved after crushing by sieve Choosing, large volume of composite thermoplastic carbon fiber material is put into again, until its pulverized particles size reaches requirement；

S2, smashed particle is discarded in composite thermoplastic carbon fiber material investment service sink, adds detergent, passes through stirring Discarded composite thermoplastic carbon fiber material is cleaned, is then rinsed again by clear water, drying is used after flushing Machine drying；

S3, the composite thermoplastic carbon fiber material particle after drying is put into the mixer, then puts into thermoplastic resin, led to The heating rod crossed in mixing machine is heated, while composite thermoplastic carbon fiber material and thermoplastic resin being mixed, and has been mixed It is granulated after finishing by extruder；

S4, corresponding injection mold is chosen, hybrid particles is discharged into injection mold and carry out injection molding；

S5, it thermoplastic resin and ceramic particle is added in mixing machine mixing, it is intracavitary that plate after molding is put into casting, Then shaped object is poured, while curing agent is added；

S6, heat is carried out to the structure that entire carbon fiber, thermoplastic resin, ceramic material and curing agent form by hot-press arrangement Pressing formation process.

Preferably, the sieve mesh is 1cm*0.8cm.

Preferably, the heating rod heating temperature is 270 degrees Celsius -350 degrees Celsius.

Preferably, the size of the ceramic particle is 0-0.5mm.

Preferably, the detergent is strength grease dirt cleaning agent.

Preferably, the extruder is double screw extruder.

Preferably, the dryer is chamber typed drying-machine.

Preferably, the hot-press arrangement hot pressing temperature is 250 degrees Celsius -450 degrees Celsius.

In the present invention, discarded composite thermoplastic carbon fiber material is put into pulverizer and is crushed, is passed through after crushing Sieve is screened, and sieve mesh is 1cm*0.8cm, ensure that the size of screening pulverized particles, is easy to use, by larger volume Composite thermoplastic carbon fiber material put into again, until its pulverized particles size reaches requirement, ensure that thermoplastic carbon fiber The degree of grinding of composite material discards smashed particle in composite thermoplastic carbon fiber material investment service sink, and addition is clear Clean dose, detergent be strength grease dirt cleaning agent, can to the greasy dirt adhered on discarded composite thermoplastic carbon fiber material particle into Row cleaning, ensure that the cleaning of discarded composite thermoplastic carbon fiber material particle, avoids greasy dirt from polluting product is generated again, has Conducive to secondary use, discarded composite thermoplastic carbon fiber material is cleaned by stirring, is then rushed again by clear water It washes, drying machine drying is used after flushing, dryer is chamber typed drying-machine, and uniformly, speed is fast, imitates for chamber typed drying-machine drying Rate is high, and material is not easy adhesion, it can be achieved that temperature automatically controlled, automatic humidity discharging, can make material drying keep better form, guarantor The color and form for holding material drying, can be improved product quality, by drying discarded composite thermoplastic carbon fiber material Moisture removal on particle, ensure that can mix when mixing with thermoplastic resin, segregation phenomenon be avoided the occurrence of, after drying Composite thermoplastic carbon fiber material particle put into the mixer, then put into thermoplastic resin, pass through the heating in mixing machine Stick is heated, and heating rod heating temperature is 270 degrees Celsius -350 degrees Celsius, can be quickly by discarded carbon fiber thermal by heating Plastic composites particle is mixed with thermoplastic resin, improves mixing efficiency, at the same by composite thermoplastic carbon fiber material and Thermoplastic resin mixing, can be by discarded carbon fiber by thermoplastic resin and the mixing of discarded composite thermoplastic carbon fiber material particle Tie up thermoplastic composite granules bonding, facilitate carry out secondary use, ensure that integraty, after mixing by extruder into Row is granulated, and extruder is double screw extruder, is had good charging performance, is kneaded plasticizing capacity, exhaust performance, squeezes out and stablize Property feature, be conducive to produce, hybrid particles be discharged into injection mold and carry out injection molding, injection molding speed of production is fast, effect Rate is high, operates and automation can be achieved, designs and varieties are more, and shape can go from the simple to the complex, and size can be descending, and product ruler Very little accurate, product easily updates, and the product of energy forming shape complexity, injection molding is suitable for mass production and complex-shaped product Processing and forming field can be remanufactured discarded composite thermoplastic carbon fiber material particle for difference by replacement injection mold Object, facilitate and reused, thermoplastic resin and ceramic particle are added in mixing machine mix, ceramic particle Size be 0-0.5mm, ceramic particle have anti-skid wearable, environmentally friendly corrosion resistant, it is hard securely, long service life, while having good Good has good heat insulation, improves object performance, and it is intracavitary that plate after molding is put into casting, then to shaped object Be poured, while curing agent be added, by thermoplastic resin, ceramic particle and curing agent can to the object that finishes of injection molding into Row is reinforced, and is improved the hardness, wearability and rotproofness of object, object service life is improved, by hot-press arrangement to entire The structure progress hot forming process of carbon fiber, thermoplastic resin, ceramic material and curing agent composition, can be incited somebody to action by hot pressing Carbon fiber, thermoplastic resin, ceramic material and curing agent are integrally formed, and ensure that the integrality of object.The application is using more The method of closed loop recycling carbon fiber is prepared for high performance continuous carbon fibre, is repeatedly recycled, is not only reduced to carbon fiber The discharge of waste, and the preparation cost of carbon fibre composite is reduced, recovery utilization rate is improved, is good for the environment.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is a kind of flow chart of method for recycling composite thermoplastic carbon fiber material proposed by the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.

Referring to Fig.1, a method of recycling composite thermoplastic carbon fiber material, comprising the following steps:

S1, it discarded composite thermoplastic carbon fiber material is put into pulverizer crushes, sieved after crushing by sieve Choosing, sieve mesh are 1cm*0.8cm, ensure that the size of screening pulverized particles, are easy to use, by large volume of carbon fiber thermal Plastic composites are put into again, until its pulverized particles size reaches requirement, ensure that composite thermoplastic carbon fiber material Degree of grinding.

S2, smashed particle is discarded in composite thermoplastic carbon fiber material investment service sink, adds detergent, cleaning Agent is strength grease dirt cleaning agent, can be cleaned to the greasy dirt adhered on discarded composite thermoplastic carbon fiber material particle, is protected The cleaning for having demonstrate,proved discarded composite thermoplastic carbon fiber material particle avoids greasy dirt from polluting product is generated again, is conducive to secondary It utilizes, discarded composite thermoplastic carbon fiber material is cleaned by stirring, then rinsed, rinsed again by clear water Drying machine drying is used after finishing, dryer is chamber typed drying-machine, and uniformly, speed is fast, high-efficient, and object for chamber typed drying-machine drying Material is not easy adhesion, it can be achieved that temperature automatically controlled, automatic humidity discharging, can make material drying keep better form, holding drying object The color and form of material, can be improved product quality, will be on discarded composite thermoplastic carbon fiber material particle by drying Moisture removal, ensure that can mix when mixing with thermoplastic resin, avoid the occurrence of segregation phenomenon.

S3, the composite thermoplastic carbon fiber material particle after drying is put into the mixer, then puts into thermoplastic resin Rouge is heated by the heating rod in mixing machine, and heating rod heating temperature is 270 degrees Celsius -350 degrees Celsius, passes through heating Quickly discarded composite thermoplastic carbon fiber material particle can be mixed with thermoplastic resin, improve mixing efficiency, simultaneously will Composite thermoplastic carbon fiber material and thermoplastic resin mixing, pass through thermoplastic resin and discarded composite thermoplastic carbon fiber material Particle mixing can bond discarded composite thermoplastic carbon fiber material particle, facilitate carry out secondary use, ensure that integraty, It is granulated after mixing by extruder, extruder is double screw extruder, has good charging performance, is kneaded plasticizing Performance, squeezes out stability feature at exhaust performance, is conducive to produce.

S4, corresponding injection mold is chosen, hybrid particles is discharged into injection mold and carry out injection molding, injection molding is raw Produce speed it is fast, high-efficient, operate can be achieved automation, designs and varieties are more, and shape can go from the simple to the complex, size can by greatly to It is small, and product size is accurate, and product easily updates, and the product of energy forming shape complexity, injection molding is suitable for mass production It, can be by discarded composite thermoplastic carbon fiber material particle by replacement injection mold with complex-shaped formed product manufacture field Remanufacturing is different objects, facilitates and is reused.

S5, it will be mixed in thermoplastic resin and ceramic particle addition mixing machine, the size of ceramic particle is 0- 0.5mm, ceramic particle have anti-skid wearable, environmentally friendly corrosion resistant, it is hard securely, long service life, while have it is good have it is good Heat insulation, improve object performance, by plate after molding be put into casting it is intracavitary, then shaped object is poured, Curing agent is added simultaneously, is reinforced, is mentioned by the object that thermoplastic resin, ceramic particle and curing agent can finish injection molding The high hardness of object, wearability and rotproofness, improve object service life.

S6, the structure that entire carbon fiber, thermoplastic resin, ceramic material and curing agent are made up of hot-press arrangement into Carbon fiber, thermoplastic resin, ceramic material and curing agent can be integrally formed by row hot forming process by hot pressing, be protected The integrality of object is demonstrate,proved.

In the present invention, discarded composite thermoplastic carbon fiber material is put into pulverizer and is crushed, led to after crushing It crosses sieve to be screened, sieve mesh is 1cm*0.8cm, ensure that the size of screening pulverized particles, is easy to use, will more substantially Long-pending composite thermoplastic carbon fiber material is put into again, until its pulverized particles size reaches requirement, ensure that carbon fiber thermoplastic Property composite material degree of grinding, by smashed particle discard composite thermoplastic carbon fiber material investment service sink in, addition Detergent, detergent are strength grease dirt cleaning agent, can be to the greasy dirt adhered on discarded composite thermoplastic carbon fiber material particle It is cleaned, ensure that the cleaning of discarded composite thermoplastic carbon fiber material particle, greasy dirt is avoided to pollute product is generated again, Be conducive to secondary use, discarded composite thermoplastic carbon fiber material is cleaned by stirring, then again by clear water Rinse, drying machine drying used after flushing, dryer is chamber typed drying-machine, chamber typed drying-machine drying uniformly, speed fastly, It is high-efficient, and material is not easy adhesion, it can be achieved that temperature automatically controlled, automatic humidity discharging, and material drying can be made to keep better form, The color and form for keeping material drying, can be improved product quality, by drying discarded thermoplastic carbon fiber composite wood Expect the moisture removal on particle, ensure that can mix when mixing with thermoplastic resin, segregation phenomenon be avoided the occurrence of, after drying Composite thermoplastic carbon fiber material particle put into the mixer, then put into thermoplastic resin, pass through in mixing machine plus Hot pin is heated, and heating rod heating temperature is 270 degrees Celsius -350 degrees Celsius, can be quickly by discarded carbon fiber by heating Thermoplastic composite granules are mixed with thermoplastic resin, improve mixing efficiency, while by composite thermoplastic carbon fiber material It is mixed with thermoplastic resin, it can be by waste carbon by thermoplastic resin and the mixing of discarded composite thermoplastic carbon fiber material particle The bonding of fiber thermoplastic composite's particle, facilitates carry out secondary use, ensure that integraty, pass through extruder after mixing It is granulated, extruder is double screw extruder, has good charging performance, is kneaded plasticizing capacity, exhaust performance, squeezes out surely Qualitative feature is conducive to produce, and hybrid particles are discharged into injection mold and carry out injection molding, injection molding speed of production is fast, It is high-efficient, it operates and automation can be achieved, designs and varieties are more, and shape can go from the simple to the complex, and size can be descending, and product Accurate size, product easily update, and the product of energy forming shape complexity, injection molding is suitable for mass production and complex-shaped production Product processing and forming field can be remanufactured discarded composite thermoplastic carbon fiber material particle for not by replacement injection mold With object, facilitate and reused, thermoplastic resin and ceramic particle are added in mixing machine mix, ceramic The size of grain is 0-0.5mm, and ceramic particle has anti-skid wearable, environmentally friendly corrosion resistant, hard secured, long service life, has simultaneously It is good to have good heat insulation, improve object performance, by plate after molding be put into casting it is intracavitary, then to molding Body is poured, while curing agent is added, the object that can be finished to injection molding by thermoplastic resin, ceramic particle and curing agent It is reinforced, improves the hardness, wearability and rotproofness of object, object service life is improved, by hot-press arrangement to whole The structure progress hot forming process of a carbon fiber, thermoplastic resin, ceramic material and curing agent composition, can by hot pressing Carbon fiber, thermoplastic resin, ceramic material and curing agent are integrally formed, ensure that the integrality of object.

The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.