CN107815082A - A kind of polycarbonate modified cable material and preparation method thereof - Google Patents

Abstract

The invention discloses a kind of polycarbonate modified cable material and preparation method thereof, the material is prepared including following parts by weight raw material：10 18 parts of ceramic particle, 0.001 0.003 parts of graphene, 12 15 parts of modifying agent, 30 45 parts of polyvinyl butyral resin, 50 65 parts of makrolon, 0.3 0.8 parts of coupling agent, 0.3 0.5 parts of crosslinking agent；Ceramic particle Jing Guo modification is added in makrolon and carried out mixed and modified, the significant anti-wear performance for improving makrolon, and preferable processability is remained, the makrolon material is used for the restrictive coating of cable, service life of the cable in high abrasion environment can be dramatically increased.

Description

A kind of polycarbonate modified cable material and preparation method thereof

Technical field

The present invention relates to cable material field, and in particular to a kind of polycarbonate modified cable material and preparation method thereof.

Background technology

Cable is to be fabricated to conductor thread core by twisted with one or more wire, then corresponding insulation is imposed on conductor Layer, the wire that outside is wrapped sealing sheath and formed, is mainly made up of core, insulating barrier, screen layer and restrictive coating.Cable has Take ground and space is few；Power supply safety is reliable, and electric shock possibility is small；Be advantageous to improve the power factor of power system；Operation, Maintenance work is simple and convenient；Be advantageous to beautifying city, there is many advantages, such as confidentiality, in being widely used in living and producing Every field.

The effect of the coat layer of power cable is intrusion of the sealing protection cable from introduced contaminants and moisture, prevents external force from directly damaging Bad cable insulation.Cable cover(ing) layer material not only requires good airproof performance, anti-corrosive properties height, high mechanical strength, good flame resistance, should also When with certain wearability.Makrolon material can also be used as cable cover(ing) layer material, but Polycarbonate wear-resistant is poor, is used for After the coat layer of power cable, cable is not suitable for using for a long time in high abrasion environment.Therefore, a variety of modification sides are employed in the prior art Method improves the wearability of makrolon material, such as：Add wear-resisting inorganic material, makrolon is crosslinked, mix it is resistance to The methods of grinding resin material, but because the specific aim difference or polycarbonate polymerization degree of raw material selection are not controlled, cause Either obtained makrolon material wearability does not reach requirement, or wearability height but poor in processability, is unfavorable for cable cover(ing) Processing of layer etc., has had a strong impact on the production and application of such cable.

The content of the invention

The defects of it is an object of the invention to overcome the makrolon material that existing cable restrictive coating uses to wear no resistance, carry For a kind of polycarbonate modified cable material and preparation method thereof；Ceramic particle Jing Guo modification is added to poly- by the present invention In carbonic ester and carry out mixed and modified, significantly improve the anti-wear performance of makrolon, and remain preferable processability, will The makrolon material is used for the restrictive coating of cable, can dramatically increase service life of the cable in high abrasion environment.

In order to realize foregoing invention purpose, the invention provides a kind of polycarbonate modified cable material, including it is following heavy Amount part raw material are prepared：The ceramic particle, the graphene of 0.001-0.003 parts of 10-18 parts, the modifying agent of 12-15 parts, The polyvinyl butyral resin of 30-45 parts, the makrolon of 50-65 parts, 0.3-0.8 parts coupling agent, 0.3-0.5 parts crosslinking Agent.

A kind of polycarbonate modified cable material of the present invention, Polycarbonate wear-resistant can be increased according to ceramic particle and crosslinking General principle, not only by targetedly screening modifying agent, coupling agent and the species of crosslinking agent, come improve ceramic particle with it is poly- Compatibility between carbonic ester, make ceramic particle more preferable to the wearability humidification of makrolon, also by controlling poly- carbonic acid The degree of polymerization of ester makes the modified makrolon material reach optimum balance relation between wearability and processability, so that Obtained makrolon material also complies with the processing prepared required for the coat layer of power cable under conditions of with excellent wearability Property, so as to largely produce the longer cable of the service life in high abrasion environment.

A kind of above-mentioned polycarbonate modified cable material, wherein graphene can act synergistically with ceramic particle, in unobvious On the premise of influenceing makrolon material electrical property, the wearability of makrolon material is dramatically increased；The amount of graphene needs to control System is in prescribed limit, and dosage is excessive, and makrolon material resistivity is greatly reduced, and insulating properties reduces, and is not suitable for cable Restrictive coating；Dosage is very few, small to makrolon material wearability increasing action, action effect unobvious；Preferably, described stone Black alkene dosage is 0.002 part.

A kind of above-mentioned polycarbonate modified cable material, wherein, described ceramic particle particle diameter is 0.01-2 μm；Ceramics Grain particle diameter is smaller, and dispersiveness is poorer, the humidification of Polycarbonate wear-resistant is reduced, ceramic particle particle diameter is bigger, in poly- carbon Compatibility is poorer in acid esters phase, interfacial separation easily occurs, influences the wearability of makrolon material；Preferably, described pottery Porcelain grain diameter is 0.1-1 μm；Most preferably, described ceramic particle particle diameter is 0.3-0.6 μm.

Wherein, it is preferred that described ceramic particle is one kind in silicon oxide ceramics, silicon nitride ceramics, silicon carbide ceramics It is or a variety of；The ceramic particle is more preferable with the compatibility of makrolon in the presence of plurality of raw materials, to the wearability of makrolon Humidification is optimal.

A kind of above-mentioned polycarbonate modified cable material, wherein, described modifying agent is polyacrylate and positive silicic acid second The mixture of ester composition；Described modifying agent had both improved the compatibility of ceramic particle and makrolon, moreover it is possible to increases material wear-resistant Property；Preferably, the ratio between amount of material of polyacrylate and tetraethyl orthosilicate is 1 ︰ 2 in described modifying agent.

A kind of above-mentioned polycarbonate modified cable material, wherein, the degree of polymerization of polyvinyl butyral resin is bigger, after crosslinking The Polycarbonate wear-resistant arrived is poorer, and processability is better, and the polymer of polyvinyl butyral resin is smaller, then polyacrylic acid after being crosslinked Wearability is better, and processability is poorer, therefore, selects the rational polyvinyl butyral resin degree of polymerization, is balance wearability and processing The important means of property.The described polyvinyl butyral resin degree of polymerization is 230-360；Preferably, described polyvinyl butyral resin The degree of polymerization be 260-320；Optimal, the degree of polymerization of described polyvinyl butyral resin is 300；By preferred, what is obtained is poly- Carbonic ester both has excellent wearability, it may have preferable processability, is suitable for preparing the coat layer of power cable.

Wherein, described polycarbonate polymerization degree is 1200-1800；Preferably, the degree of polymerization of the makrolon is 1400-1600；Most preferably, the degree of polymerization of described makrolon is 1500；By preferred, obtained makrolon both had Excellent wearability, it may have preferable processability, be suitable for preparing the coat layer of power cable.

A kind of above-mentioned polycarbonate modified cable material, wherein, described coupling agent is methacryloxypropyl three Methoxy silane coupling agent；Methacryloxypropyl trimethoxy silane coupling agent can increase ceramic particle and makrolon Compatibility between material, improve the performance of makrolon material.

Wherein, described crosslinking agent is 2,5- dimethyl -2,5 di-t-butyl hexane peroxides, and the crosslinking agent can not only incite somebody to action The makrolon and polyvinyl butyral resin of different polymerization degree are suitably crosslinked, and improve the wearability of makrolon material, moreover it is possible to carry The high compatibility with ceramic particle, increase ceramic particle form Synergistic to the modifying function of makrolon with ceramic particle Effect.

A kind of above-mentioned polycarbonate modified cable material, wherein, its raw material also includes dispersant, plasticizer, antistatic One or more in agent, coloring agent, brightener；Above-mentioned auxiliary agent can improve the processability of polycarbonate modified cable material, Increase the effect such as its feature, so as to improve its applicability.

In order to realize foregoing invention purpose, further, the invention provides a kind of polycarbonate modified cable material Preparation method, comprise the following steps：

（1）Ceramic particle is handled with coupling agent；

（2）Ceramic particle Jing Guo coupling agent treatment is subjected to cladding processing with modifying agent；

（3）Used after ceramic particle after cladding is well mixed with graphene, polyvinyl butyral resin, makrolon, crosslinking agent Extruder is extruded, and obtains polycarbonate modified cable material.

A kind of preparation method of polycarbonate modified cable material of the present invention, first carries out crosslinking Treatment to ceramic particle, increases Add its compatibility with high polymer material, then ceramic particle is coated with modifying agent, finally enter with raw materials such as makrolon Row mixing, makes ceramic particle be dispersed in cross-linked polycarbonate, forms the modification that stability is good, wearability is good, processability is good and gathers Carbonate material；The preparation method is simple and reliable, is suitable for extensive, the industrial metaplasia of polycarbonate modified cable material Production.

Compared with prior art, beneficial effects of the present invention：

1st, graphene can act synergistically with ceramic particle in the polycarbonate modified cable material of the present invention, not appreciably affect poly- carbon On the premise of acid esters material electrical property, the wearability of makrolon material is dramatically increased.

2nd, the polycarbonate modified cable material of the present invention targetedly screens the species of modifying agent, coupling agent and crosslinking agent, To improve the compatibility between ceramic particle and makrolon, make ceramic particle to the wearability humidification of makrolon more It is good.

3rd, the polycarbonate modified cable material of the present invention makes modified poly- carbon by controlling the degree of polymerization of makrolon Acid esters material reaches optimum balance relation between wearability and processability, so as to get makrolon material with excellent Under conditions of wearability, the processability prepared required for the coat layer of power cable is also complied with.

4th, preparation method of the present invention is simple, reliable, is adapted to extensive, the industrial metaplasia of polycarbonate modified cable material Production.

Embodiment

With reference to test example and embodiment, the present invention is described in further detail.But this should not be understood Following embodiment is only limitted to for the scope of the above-mentioned theme of the present invention, it is all that this is belonged to based on the technology that present invention is realized The scope of invention.

Embodiment 1

（1）By silicon oxide ceramics that 15 parts of particle diameter is 0.3 μm with 0.5 part of methacryloxypropyl trimethoxy silane Coupling agent is handled；

（2）Silicon oxide ceramics Jing Guo coupling agent treatment are coated with 4 parts of polyacrylate and 8 parts of tetraethyl orthosilicate Processing；

（3）By the silicon oxide ceramics after cladding and 0.002 part of graphene, the polyvinyl butyral resin that 38 parts of the degree of polymerization is 300, Makrolon that 58 parts of the degree of polymerization is 1500,0.4 part of the di-t-butyl hexane peroxide of 2,5- dimethyl -2,5 is well mixed Extruded afterwards with extruder, obtain polycarbonate modified cable material.

Embodiment 2

（1）By silicon nitride ceramics that 10 parts of particle diameter is 0.6 μm with 0.3 part of methacryloxypropyl trimethoxy silane Coupling agent is handled；

（2）Silicon nitride ceramics Jing Guo coupling agent treatment is wrapped with 5 parts of polyacrylate and 10 parts of tetraethyl orthosilicate Cover processing；

（3）By the silicon nitride ceramics after cladding and 0.001 part of graphene, the polyvinyl butyral resin that 30 parts of the degree of polymerization is 230, After makrolon that 50 parts of the degree of polymerization is 1200,0.3 di-t-butyl hexane peroxide of 2,5- dimethyl -2,5 are well mixed Extruded with extruder, obtain polycarbonate modified cable material.

Embodiment 3

（1）18 parts of particle diameter is even with 0.8 part of methacryloxypropyl trimethoxy silane for 3 μm of silicon carbide ceramics Connection agent is handled；

（2）Silicon carbide ceramics Jing Guo coupling agent treatment is coated with 4 parts of polyacrylate and 9 parts of tetraethyl orthosilicate Processing；

（3）By the silicon carbide ceramics after cladding and 0.003 part of graphene, the polyvinyl butyral resin that 45 parts of the degree of polymerization is 360, Makrolon that 65 parts of the degree of polymerization is 1800,0.5 part of the di-t-butyl hexane peroxide of 2,5- dimethyl -2,5 is well mixed Extruded afterwards with extruder, obtain polycarbonate modified cable material.

Comparative example 1

（1）By silicon oxide ceramics that 15 parts of particle diameter is 0.3 μm with 0.5 part of methacryloxypropyl trimethoxy silane Coupling agent is handled；

（2）Silicon oxide ceramics Jing Guo coupling agent treatment are coated with 4 parts of polyacrylate and 8 parts of tetraethyl orthosilicate Processing；

（3）It is by polyvinyl butyral resin that the silicon oxide ceramics after cladding are 300 with 38 parts of the degree of polymerization, 58 parts of the degree of polymerization Carried out after 1500 makrolon, 0.4 part of the di-t-butyl hexane peroxide of 2,5- dimethyl -2,5 are well mixed with extruder Extrusion, obtains polycarbonate modified cable material.

Comparative example 2

（1）By silicon oxide ceramics that 15 parts of particle diameter is 0.3 μm with 0.5 part of methacryloxypropyl trimethoxy silane Coupling agent is handled；

（2）By the silicon oxide ceramics Jing Guo coupling agent treatment and 0.002 part of graphene, the polyethylene that 20 parts of the degree of polymerization is 300 Butyral, 55 parts of the degree of polymerization be 1500 makrolon, 0.4 part of the di-tert-butyl peroxide of 2,5- dimethyl -2,5 oneself Extruded after alkane is well mixed with extruder, obtain polycarbonate modified cable material.

Comparative example 3

（1）By silicon oxide ceramics that 15 parts of particle diameter is 0.3 μm with 0.5 part of methacryloxypropyl trimethoxy silane Coupling agent is handled；

（2）Silicon oxide ceramics Jing Guo coupling agent treatment are coated with 4 parts of polyacrylate and 8 parts of tetraethyl orthosilicate Processing；

（3）By the silicon oxide ceramics after cladding and 0.002 part of graphene, the polyvinyl butyral resin that 38 parts of the degree of polymerization is 200, Makrolon that 58 parts of the degree of polymerization is 1000,0.4 part of the di-t-butyl hexane peroxide of 2,5- dimethyl -2,5 is well mixed Extruded afterwards with extruder, obtain polycarbonate modified cable material.

Comparative example 4

（1）By silicon oxide ceramics that 15 parts of particle diameter is 0.3 μm with 0.5 part of methacryloxypropyl trimethoxy silane Coupling agent is handled；

（2）Silicon oxide ceramics Jing Guo coupling agent treatment are coated with 4 parts of polyacrylate and 8 parts of tetraethyl orthosilicate Processing；

（3）By the silicon oxide ceramics after cladding and 0.002 part of graphene, the polyvinyl butyral resin that 38 parts of the degree of polymerization is 300, Makrolon that 58 parts of the degree of polymerization is 2000,0.4 part of the di-t-butyl hexane peroxide of 2,5- dimethyl -2,5 is well mixed Extruded afterwards with extruder, obtain polycarbonate modified cable material.

Comparative example 5

（1）By silicon oxide ceramics that 15 parts of particle diameter is 0.3 μm with 0.5 part of methacryloxypropyl trimethoxy silane Coupling agent is handled；

（2）Silicon oxide ceramics Jing Guo coupling agent treatment are coated with 4 parts of polyacrylate and 8 parts of tetraethyl orthosilicate Processing；

（3）By the silicon oxide ceramics after cladding and 0.002 part of graphene, the polyvinyl butyral resin that 38 parts of the degree of polymerization is 300, 58 parts of the degree of polymerization be 1500 makrolon, 0.4 part of the di-t-butyl hexane peroxide silane mixture of 2,5- dimethyl -2,5 Extruded after uniformly with extruder, obtain polycarbonate modified cable material.

By the polycarbonate modified cable material in above-described embodiment 1-3 and comparative example 1-5, performance detection is carried out（It is wear-resisting Performance test：By GB3960-1983 standard testings, experiment power is 200N, rotating speed 200r/min, wearing- in period 2h.）, note It is as follows to record data：

Performance	Wear extent（g）	Processability
			Embodiment 1	0.078	+++
Embodiment 2	0.082	+++
			Embodiment 3	0.084	+++
Comparative example 1	0.153	+++
			Comparative example 2	0.134	++
Comparative example 3	0.083	++
			Comparative example 4	0.121	++++
Comparative example 5	0.117	++

Note："+" is more, illustrates that performance is better.

Above-mentioned analysis of experimental data is understood, the polycarbonate modified cable material of the invention being prepared in embodiment 1-3 Material, wearability is good, and processability is good；And in comparative example 1, it is not added with graphene, it is impossible to ceramic particle Synergistic, makrolon The wearability of material significantly reduces；Ceramic particle is not coated using modifying agent in comparative example 2, ceramic particle is in poly- carbonic acid Compatibility poor in ester, the wearability humidification of makrolon is reduced, processability is deteriorated；Polyvinyl alcohol in comparative example 3 The degree of polymerization of butyral is too small, and makrolon flowing property is poor after crosslinking, and processability is deteriorated, and is unfavorable for being used in the cable； The degree of polymerization of makrolon is big in comparative example 4, although processability improves, wearability significantly reduces；Not using this in comparative example 5 Invention the compatibility reduction of cross-linked polycarbonate and ceramic particle, causes makrolon material for the crosslinking agent of Sexual behavior mode Wearability, processability reduce.

Claims (10)

1. a kind of polycarbonate modified cable material, it is characterised in that be prepared including following parts by weight raw material：10-18 Part ceramic particle, the graphene of 0.001-0.003 parts, the modifying agent of 12-15 parts, the polyvinyl butyral resin of 30-45 parts, The makrolon of 50-65 parts, the coupling agent of 0.3-0.8 parts, the crosslinking agent of 0.3-0.5 parts；Described modifying agent is polyacrylic acid The mixture of ester and tetraethyl orthosilicate composition；The described polyvinyl butyral resin degree of polymerization is 230-360；Described makrolon The degree of polymerization is 1200-1800；Described coupling agent is methacryloxypropyl trimethoxy silane coupling agent；Described friendship Connection agent is the di-t-butyl hexane peroxide of 2,5- dimethyl -2,5.

2. polycarbonate modified cable material according to claim 1, it is characterised in that described graphene parts by weight are 0.002 part.

3. polycarbonate modified cable material according to claim 1, it is characterised in that described ceramic particle particle diameter is 0.01-2μm。

4. polycarbonate modified cable material according to claim 1, it is characterised in that described ceramic particle is oxidation One or more in silicon ceramics, silicon nitride ceramics, silicon carbide ceramics.

5. polycarbonate modified cable material according to claim 1, it is characterised in that polypropylene in described modifying agent The ratio between amount of material of acid esters and tetraethyl orthosilicate is 1 ︰ 2.

6. polycarbonate modified cable material according to claim 1, it is characterised in that described polyvinyl butyral resin The degree of polymerization be 260-320.

7. polycarbonate modified cable material according to claim 6, it is characterised in that described polyvinyl butyral resin The degree of polymerization be 300.

8. polycarbonate modified cable material according to claim 1, it is characterised in that the degree of polymerization of the makrolon For 1200-1800.

9. polycarbonate modified cable material according to claim 8, it is characterised in that the degree of polymerization of the makrolon For 1500.

A kind of 10. preparation method of any one of claim 1-9 polycarbonate modified cable materials, it is characterised in that bag Include following steps：

（1）Ceramic particle is handled with coupling agent；

（2）Ceramic particle Jing Guo coupling agent treatment is subjected to cladding processing with modifying agent；

（3）Used after ceramic particle after cladding is well mixed with graphene, polyvinyl butyral resin, makrolon, crosslinking agent Extruder is extruded, and obtains polycarbonate modified cable material.