CN107474428A - PVC composite modification materials and preparation method thereof - Google Patents
PVC composite modification materials and preparation method thereof Download PDFInfo
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- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
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- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/246—Intercrosslinking of at least two polymers
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- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
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Abstract
PVC composite modification materials and preparation method thereof, it is material modified and preparation method thereof that it is related to a kind of PVC.A certain amount of unsaturated double-bond also be present on the strand material modified the invention aims to solve existing PVC, can form activated centre will cause poor ductility, easily cause melt to crush, and cause product surface coarse and lacklustre problem.PVC composite modification materials are prepared by polyvinyl chloride resin, low temperature toughener, impact modifier, processing aid, surfactant, compound stabilizer, covering agent, initiator and crosslinking agent in parts by weight.Preparation method：First, weigh；2nd, premix, obtain pre-composition；3rd, substep is mixed, obtains substep mixture；4th, it is mixed eventually, obtain mixed thing eventually；5th, extruding pelletization, PVC composite modification materials are obtained.Present invention is mainly used for prepare PVC composite modification materials.
Description
Technical field
It is material modified and preparation method thereof the present invention relates to a kind of PVC.
Background technology
It is known that the unmanageable characteristic of polyvinyl chloride resin shows that it is in thermal sensitivity, its processing temperature and decomposition temperature ratio
It is closer to, low poor heat resistance, ageing resistance, melt calorific intensity, poor fluidity is present, easily produces thermal deformation, glass transition temperature
Low and cryogenic property and impact strength is poor, interlaminar resin bonding force is not high, it is broken easily to occur melting, and processing characteristics is bad,
So residence time of the resin in process equipment is longer than general resin, easily decomposed in the dead angle coking of equipment, cause to add
The shortcomings of work difficult forming.Therefore in order to solve above-mentioned drawback, people employ copolymerized grafting, blending, enhancing, crosslinking etc.
Physics and chemical method, are modified to it, prepare the PVC material of many excellent performances, make the field that it is applied to depth
Development.
Polyvinyl chloride (PVC) is to polymerize obtained polymer by monomer of vinyl chloride, belongs to thermoplastic, has chemistry
Stability is good, and high mechanical properties, electrical apparatus insulation be excellent, fire retardant self-extinguishment, lower-price characteristic.But due in strand
Syndiotactic containing short distance, belong to amorphous polymer, in the course of the polymerization process due to chain transfer reaction and disproportionated reaction occurs
A number of unsaturated end group and side chain can be produced, a small amount of end group is the residue of initiator, and the presence of these miscellaneous structures makes PVC
Heat endurance decline, temperature in use is not high, fragility is big, can not resist cold, low temperature impact strength is low, in the presence of heat, oxygen and light
Easy to aging, the shortcomings of degrading, using modified mode, it is also easy to make that product surface is rough, dimensional stability is bad, shadow
The processing characteristics of product is rung, the prior cost that improves adds expense.In order to solve the above problems, being badly in need of one kind can solve
The certainly appearance of the new PVC modified products of drawbacks described above.Therefore by the modification to PVC composites, materials for construction is produced
Product forms, apply and produce plastic material product by checking, this kind of material in plastic door-window industry, further increase PVC
Tensile strength, dimensional stability, low-temperature impact toughness and the electrical property of material product, reduce thermal deformation and high-temerature creep, resistance to
The performances such as degraded, the shortcomings of improving the stress concentration of product, be cracked, avoid what plastic material used in low-temperature cold area
Defect, reduce molecular particle size diameter and control one setting state, improve tensile yield strength and low temperature impact strength, improve it
The transparency and glossiness, processing temperature during shaping is reduced, so as to extend the service life of product, this materials application is in agriculture
In industry, building, chemical industry, electric, machinery and daily life, purposes is extremely wide, especially with the plastics of this kind of material production
Section bar is successfully applied to be used under the larger environment of the temperature difference, achieves good effect.But point material modified existing PVC
A certain amount of unsaturated double-bond in subchain also be present, can form activated centre will cause poor ductility, easily cause melt to crush,
Cause product surface coarse and lacklustre problem.
The content of the invention
Also exist on the strand material modified the invention aims to solve existing PVC a certain amount of unsaturated double
Key, can form activated centre will cause poor ductility, easily cause melt to crush, and cause product surface coarse and lacklustre ask
Topic, and PVC composite modification materials and preparation method thereof are provided.
PVC composite modification materials are in parts by weight by 60~85 parts of polyvinyl chloride resin, 3.5~10 parts of low temperature toughener, 4
~9 parts of impact modifier, 2~5 parts of processing aid, 0.5~1 part of surfactant, 2~5 parts of compound stabilizer, 2
~5 parts of covering agent, 0.1~0.5 part of initiator and 0.5~4.5 part of crosslinking agent are prepared.
The preparation method of PVC composite modification materials, is specifically realized by the following steps：
First, weigh：Weigh in parts by weight 60~85 parts polyvinyl chloride resin, 3.5~10 parts of low temperature toughener, 4~9 parts
Impact modifier, 2~5 parts of processing aid, 0.5~1 part of surfactant, 2~5 parts of compound stabilizer, 2~5 parts
Covering agent, 0.1~0.5 part of initiator and 0.5~4.5 part of crosslinking agent；
2nd, premix：By weighed in step 1 60~85 parts of polyvinyl chloride resin, 2~5 parts of compound stabilizer and 2~5 parts
Covering agent be sequentially placed into high-speed mixer, mixed in the case where temperature is 70 DEG C~80 DEG C and rotating speed is 10r/min~15r/min
5min~15min, obtain pre-composition；
3rd, substep is mixed：By weighed in step 1 3.5~10 parts of low temperature toughener, 2~5 parts of processing aid and 4~
9 parts of impact modifier is sequentially placed into high-speed mixer, and high-speed mixer design temperature is 110 DEG C, starts high-speed mixer
Mixed in the case where rotating speed is 10r/min~15r/min, when the mixing temperature of high-speed mixer reaches 70~80 DEG C, addition 0.5~
1 part of surfactant, continue to mix, blowing when reaching 110 DEG C to the mixing temperature of high-speed mixer, obtain substep and mix
Thing；
4th, it is mixed eventually：The substep mixture that the pre-composition and step 3 that step 2 obtains obtain is sequentially placed into high-speed mixer
In, sequentially add 0.5~4.5 part of the crosslinking agent and 0.1~0.5 part of initiator weighed in step 1, high-speed mixer
Design temperature is 70~80 DEG C, starts high-speed mixer and is mixed in the case where rotating speed is 10r/min~15r/min, works as high-speed mixer
Mixing temperature stop mixing when reaching 70~80 DEG C, obtain mixed thing eventually；
5th, extruding pelletization：End that step 4 is obtained mixes thing and is transferred in extruder, pass sequentially through extruder shearing,
Mixing, kneading and cooling pelletization, obtain PVC composite modification materials；Technological temperature difference of the extrusion from material mouth at mouth mold
For：1st area：160~165 DEG C, 2nd area：165~170 DEG C, 3rd area：175~180 DEG C, 4th area：180~185 DEG C, 5th area：185~190
DEG C, 6th area：195~205 DEG C, melt pressure is no more than 10MPa.
Advantages of the present invention：
First, it is using polyvinyl chloride resin as carrier according to PVC plastic when processing PVC material the characteristics of the technology of the present invention
The characteristics of, multi-component plastics are prepared into using various plastic additives are added, changes formula and uses exclusive fiber distributed architecture, carry
The creep-resistant property of high material, low temperature impact properties are improved, the plastic material and product of degree difference and multiple functions is made, carries
The applicability of high product.
2nd, in enhancing composite modification material of the invention, mutually tied with polymeric material by intermolecular or chemical bond force
Close, the basic performance of the property of its own and polymeric material is combined together, mutually twined with polymer in reinforcing material
In the active force of knot, both are made to have sufficient affinity to reach the purpose of enhancing with it.Therefore modified PVC composites, tool
There is the features such as density is low, intensity is high, processing is fast, recyclable, belong to high-performance, low cost, green advanced composite material (ACM),
And part instead of expensive engineering plastics.
3rd, the PVC composite modification materials that prepare of the present invention, overcome PVC to it is thermo-responsive, heat endurance is poor, resistance to ag(e)ing
And deformation resistance difference shortcoming, product tensile strength is improved, dimensional stability, impact flexibility, heat endurance and electrical property, is reduced
The performance such as thermal deformation and high-temerature creep, improves product stress concentration, the shortcomings of cracking, so as to extending product using life etc.
Prepare the product material of excellent performance.With contrasting afterwards before modified, ageing properties are improved by tensile strength 4.5MPa before modified
To 7.6MPa, impact brittle temperature has original -20 DEG C to bring up to -40 DEG C.
4th, compared with existing PVC material, PVC is crosslinked the tensile strength for being favorably improved material.
5th, compared with existing PVC material, PVC is crosslinked the heat endurance for being favorably improved material.
6th, compared with existing PVC material, PVC composite modification materials prepared by the present invention improve the electrical insulating property of material.
Embodiment
Embodiment one：Present embodiment is PVC composite modification materials, in parts by weight by 60~85 parts of PVC
Resin, 3.5~10 parts of low temperature toughener, 4~9 parts of impact modifier, 2~5 parts of processing aid, 0.5~1 part of surface
Activating agent, 2~5 parts of compound stabilizer, 2~5 parts of covering agent, 0.1~0.5 part of initiator and 0.5~4.5 part of crosslinking
Agent is prepared.
The heat endurance of polyvinyl chloride resin, an important factor for determining its quality, processing characteristics can be directly affected and using the longevity
Life, research PVC is exactly to consider the molecular structure of polyvinyl chloride resin inherently, and this structure result in possessing have it is unstable because
Element, therefore the present invention increases the viscoplasticity of PVC melts on the basis of original modification, so as to improve die swelling and improve molten
Body intensity, improve the molecular structure of polymer, crystallinity, the direction of micro-crystallization, crosslinking degree etc., so as to by linear branched structure
Become tridimensional network, make polymer more preferable to obdurability, impact, it is stronger to raising PVC performance, meet one
Needs under a little specific conditions, extend PVC application scenario.
Embodiment two：The difference of present embodiment and embodiment one is：Described polyvinyl chloride resin is hard
Polyvinyl chloride resin of the angle value 70.Other are identical with embodiment one.
Embodiment three：Present embodiment is with one of embodiment one or two difference：Described covering
Agent is rutile titanium dioxide.Other are identical with embodiment one or two.
Embodiment four：Present embodiment is with one of embodiment one to three difference：Described low temperature
Toughener is PNBR.Other are identical with embodiment one to three.
Embodiment five：Present embodiment is with one of embodiment one to four difference：Described anti-impact
Modifying agent is MBS.Other are identical with embodiment one to four.
Embodiment six：Present embodiment is with one of embodiment one to five difference：Described processing
Auxiliary agent is acrylonitritrile-styrene resin.Other are identical with embodiment one to five.
Embodiment seven：Present embodiment is with one of embodiment one to six difference：Described surface
Activating agent is polyoxy base silane.Other are identical with embodiment one to six.
Embodiment eight：Present embodiment is with one of embodiment one to seven difference：Described initiation
Agent is cumyl peroxide.Other are identical with embodiment one to seven.
Embodiment nine：Present embodiment is with one of embodiment one to eight difference：Described crosslinking
Agent is double maleamic acids.Other are identical with embodiment one to eight.
Embodiment ten：Present embodiment is the preparation method of PVC composite modification materials, specifically according to the following steps
Complete：
First, weigh：Weigh in parts by weight 60~85 parts polyvinyl chloride resin, 3.5~10 parts of low temperature toughener, 4~9 parts
Impact modifier, 2~5 parts of processing aid, 0.5~1 part of surfactant, 2~5 parts of compound stabilizer, 2~5 parts
Covering agent, 0.1~0.5 part of initiator and 0.5~4.5 part of crosslinking agent；
2nd, premix：By weighed in step 1 60~85 parts of polyvinyl chloride resin, 2~5 parts of compound stabilizer and 2~5 parts
Covering agent be sequentially placed into high-speed mixer, mixed in the case where temperature is 70 DEG C~80 DEG C and rotating speed is 10r/min~15r/min
5min~15min, obtain pre-composition；
3rd, substep is mixed：By weighed in step 1 3.5~10 parts of low temperature toughener, 2~5 parts of processing aid and 4~
9 parts of impact modifier is sequentially placed into high-speed mixer, and high-speed mixer design temperature is 110 DEG C, starts high-speed mixer
Mixed in the case where rotating speed is 10r/min~15r/min, when the mixing temperature of high-speed mixer reaches 70~80 DEG C, addition 0.5~
1 part of surfactant, continue to mix, blowing when reaching 110 DEG C to the mixing temperature of high-speed mixer, obtain substep and mix
Thing；
4th, it is mixed eventually：The substep mixture that the pre-composition and step 3 that step 2 obtains obtain is sequentially placed into high-speed mixer
In, sequentially add 0.5~4.5 part of the crosslinking agent and 0.1~0.5 part of initiator weighed in step 1, high-speed mixer
Design temperature is 70~80 DEG C, starts high-speed mixer and is mixed in the case where rotating speed is 10r/min~15r/min, works as high-speed mixer
Mixing temperature stop mixing when reaching 70~80 DEG C, obtain mixed thing eventually；
5th, extruding pelletization：End that step 4 is obtained mixes thing and is transferred in extruder, pass sequentially through extruder shearing,
Mixing, kneading and cooling pelletization, obtain PVC composite modification materials；Technological temperature difference of the extrusion from material mouth at mouth mold
For：1st area：160~165 DEG C, 2nd area：165~170 DEG C, 3rd area：175~180 DEG C, 4th area：180~185 DEG C, 5th area：185~190
DEG C, 6th area：195~205 DEG C, melt pressure is no more than 10MPa.
Plastics are raw materials based on synthetic resin (high-molecular compound or polymer), and polymer determines the basic of plastics
Performance, and the performance of plastics is not only decided by the molecular structure of polymer, and the direction of crystallinity, micro-crystallization, intermolecular hydrogen bonding,
Crosslinking degree etc. significantly affects, and PVC plastic is a kind of uneven anisotropic material, therefore modified emphasis is to carry
The interface adhesion of high PVC and each component, make that there is good compatibility between polar molecule surface and some auxiliary agent interfaces,
So that reaching intermolecular between surface between the surface of material and each auxiliary agent of plastics merges or produces chemical crosslinking, will
The material of different component is appropriate to be combined together, and is produced the new material more excellent than homogenous material performance, is made the firm of material
Property is perfectly combined with toughness, ensure that the stability and practicality of product.
PVC composite modification materials described in present embodiment use special chemical polymerization techniques and exclusive production work
Skill, the technique manufacturing method that product crosslinking, compatible and processing, scattered multiple functions are integrated solve that PVC is many to be lacked
Fall into, it is dispersed in polyvinyl chloride resin by adding a certain amount of various auxiliary agents, give full play to the toughness reinforcing with core-shell structure, increase
It is potent to answer, make PVC particles by modified to have excellent shock resistance and comprehensive mechanical property, solve traditional toughness reinforcing
While technology later stage co-blending elastic body is to material toughness reinforcing, performance loss and lubricating system precipitation of rigidity aspect etc. is also brought to ask
Topic, improves its heat endurance, degradation resistance, low-temperature impact resistance.The key issue of present embodiment is to improve its PVC gel
Content, only abundant gel, can just obtain excellent products appearance and and mechanical property, with its reach PVC material heat resistance with
Degradation resistance and cold temperature impact.
PVC in process, the chemical reaction most importantly between macromolecule, be active group on strand collision
What probability determined, collision probability is higher, and intermolecular reaction is easier, and reaction rate is also bigger, if the concentration of crosslinking is too
It is low, reaction effective collision probability that can be cumbersome can be made just to reduce, reaction is difficult.Therefore macromolecule often draws in high-temperature heating
The main chain risen disconnects, and makes reaction mechanism more complicated, and shearing force can cause chain to break and generate free radical, therefore in present embodiment
The middle chemical method using modification by copolymerization, low temperature toughener is added in polyvinyl chloride resin, be adhered to by longer strand
On polyvinyl chloride resin particle, by the heat of outside and shear transfer to resin, promote resin melting to make its plasticizing, reach the mesh of plasticizing
, eliminate traditional polyvinyl chloride resin at low temperature product embrittlement, to it is thermo-responsive, heat endurance is poor, resistance to ag(e)ing, deformation resistance
On the basis of the performances such as difference, by the way that to the composite modified of PVC material, mechanical property, the stretching for further increasing PVC material are strong
Degree, dimensional stability, impact flexibility, the performance such as thermal deformation and high-temerature creep, degradation resistant is reduced, improve the stress collection of product
In, cracking the shortcomings of, the PVC creep-resistant properties after crosslinking are good, product is reduced change during long-term use
Shape, heat distortion temperature raising, good weatherability, the decomposition and chain rupture for not easily causing polymer, improve PVC high temperature tensile strengths, soft
Change temperature and viscoplasticity, with the development of triazines cross-linking technology, the palliating degradation degree in PVC cross-linking processes reduces, to improving PVC
Performance it is stronger, meet the needs under some specific conditions, extend PVC application scenario, so as to extend product
Service life, its application field is developed to depth direction, be particularly suitable for using under the obvious environment that colds and heat succeed each other.Using
Modified PVC composite of the present invention is compared with the material that traditional polyvinyl chloride resin produces, and low temperature impact strength improves 60%, glass
Glass temperature improves 37 DEG C so that product does not ftracture at low temperature, has reached the characteristic used under suitable low temperature.
Embodiment 11：The difference of present embodiment and embodiment ten is：Described in step 1
Polyvinyl chloride resin is polyvinyl chloride resin of the hardness number 70.Other are identical with embodiment ten.
Embodiment 12：The difference of present embodiment and one of embodiment ten or 11 is：Step
Covering agent described in one is rutile titanium dioxide.Other are identical with embodiment ten or 11.
Embodiment 13：Present embodiment is with the difference of embodiment ten to one of 12：Step 1
Described in low temperature toughener be PNBR.Other are identical with embodiment ten to 12.
Embodiment 14：Present embodiment is with the difference of embodiment one to one of 13：Step 1
Described in impact modifier be MBS.Other with embodiment ten to
13 is identical.
Embodiment 15：Present embodiment is with the difference of embodiment one to one of 14：Step 1
Described in processing aid be acrylonitritrile-styrene resin.Other are identical with embodiment ten to 14.
Embodiment 16：Present embodiment is with the difference of embodiment one to one of 15：Step 1
Described in surfactant be polyoxy base silane.Other are identical with embodiment ten to 15.
Embodiment 17：Present embodiment is with the difference of embodiment one to one of 16：Step 1
Described in initiator be cumyl peroxide.Other are identical with embodiment ten to 16.
Embodiment 18：Present embodiment is with the difference of embodiment one to one of 17：Step 1
Described in crosslinking agent be double maleamic acids.Other are identical with embodiment ten to 17.
Using following verification experimental verifications effect of the present invention
Embodiment 1：The preparation method of PVC composite modification materials, is specifically realized by the following steps：
First, weigh：85 parts of polyvinyl chloride resin, 3.5 parts of low temperature toughener, 4 parts impact-resistant modified is weighed in parts by weight
Agent, 2 parts of processing aid, 0.5 part of surfactant, 2 parts of compound stabilizer, 2 parts of covering agent, 0.5 part of initiator
With 0.5 part of crosslinking agent；
2nd, premix：By weighed in step 1 85 parts of polyvinyl chloride resin, 2 parts of compound stabilizer and 2 parts of covering agent according to
It is secondary to be put into high-speed mixer, 10min is mixed in the case where temperature is 80 DEG C and rotating speed is 10r/min, obtains pre-composition；
3rd, substep is mixed：By weighed in step 1 3.5 parts of low temperature toughener, 2 parts of processing aid and 4 parts of anti-impact
Modifying agent is sequentially placed into high-speed mixer, and high-speed mixer design temperature is 110 DEG C, is started high-speed mixer and is in rotating speed
Mixed under 10r/min, when the mixing temperature of high-speed mixer reaches 80 DEG C, add 0.5 part of surfactant, continue to mix
Close, blowing when reaching 110 DEG C to the mixing temperature of high-speed mixer, obtain substep mixture；
4th, it is mixed eventually：The substep mixture that the pre-composition and step 3 that step 2 obtains obtain is sequentially placed into high-speed mixer
In, sequentially add 0.5 part of the crosslinking agent weighed in step 1 and 0.5 part of initiator, high-speed mixer design temperature are
80 DEG C, start high-speed mixer and mixed in the case where rotating speed is 10r/min, stopped when the mixing temperature of high-speed mixer reaches 80 DEG C
Mixing, obtain mixed thing eventually；
5th, extruding pelletization：End that step 4 is obtained mixes thing and is transferred in extruder, pass sequentially through extruder shearing,
Mixing, kneading and cooling pelletization, obtain PVC composite modification materials；Technological temperature difference of the extrusion from material mouth at mouth mold
For：1st area：160~165 DEG C, 2nd area：165~170 DEG C, 3rd area：175~180 DEG C, 4th area：180~185 DEG C, 5th area：185~190
DEG C, 6th area：195~205 DEG C, melt pressure is no more than 10MPa.
Polyvinyl chloride resin described in the present embodiment step 1 is polyvinyl chloride resin of the hardness number 70.
Low temperature toughener described in the present embodiment step 1 is the europeanized powder for learning 's production of Yi Li
Nitrile rubber.
Impact modifier described in the present embodiment step 1 is the methyl-prop of the auspicious specialization work Materials Co., Ltd production in Qingdao sea
E pioic acid methyl ester-BS.
Processing aid described in the present embodiment step 1 be Zhenjiang Qi Mei industry Chemical Co., Ltd. production acrylonitrile-
Styrol copolymer.
Surface compatilizer described in the present embodiment step 1 is the polyoxy base silane of Zhong Jie chemical companies of Changshu City production.
Compound stabilizer described in the present embodiment step 1 is the stable composition of Zhejiang Province Chuanhua Co., Ltd's production
Agent.
Covering agent described in the present embodiment step 1 is the rutile of Henan Baililian Chemical Co., Ltd.'s production
Type titanium dioxide.
Initiator described in the present embodiment step 1 is the cumyl peroxide of Shanghai Hao Hua Chemical Co., Ltd.s.
Crosslinking agent described in the present embodiment step 1 comes for the span of Beijing Yi Taiwei plastic materials Co., Ltd production
Amic acid.
Embodiment 2：The preparation method of PVC composite modification materials, is specifically realized by the following steps：
First, weigh：Weigh in parts by weight 80 parts polyvinyl chloride resin, 5 parts of low temperature toughener, 5 parts of impact modifier,
3 parts of processing aid, 0.5 part of surfactant, 3 parts of compound stabilizer, 2 parts of covering agent, 0.5 part of initiator and 1
The crosslinking agent of part；
2nd, premix：By weighed in step 1 80 parts of polyvinyl chloride resin, 3 parts of compound stabilizer and 2 parts of covering agent according to
It is secondary to be put into high-speed mixer, 10min is mixed in the case where temperature is 80 DEG C and rotating speed is 10r/min, obtains pre-composition；
3rd, substep is mixed：Weighed in step 15 parts of low temperature toughener, 3 parts of processing aid and 5 parts of anti-impact are changed
Property agent be sequentially placed into high-speed mixer, high-speed mixer design temperature is 110 DEG C, and it in rotating speed is 10r/ to start high-speed mixer
Mixed under min, when the mixing temperature of high-speed mixer reaches 80 DEG C, add 0.5 part of surfactant, continue to mix, extremely
The blowing when mixing temperature of high-speed mixer reaches 110 DEG C, obtain substep mixture；
4th, it is mixed eventually：The substep mixture that the pre-composition and step 3 that step 2 obtains obtain is sequentially placed into high-speed mixer
In, 1 part of the crosslinking agent and 0.5 part of initiator weighed in step 1 is sequentially added, high-speed mixer design temperature is 80
DEG C, start high-speed mixer and mixed in the case where rotating speed is 10r/min, stopped when the mixing temperature of high-speed mixer reaches 80 DEG C mixed
Close, obtain mixed thing eventually；
5th, extruding pelletization：End that step 4 is obtained mixes thing and is transferred in extruder, pass sequentially through extruder shearing,
Mixing, kneading and cooling pelletization, obtain PVC composite modification materials；Technological temperature difference of the extrusion from material mouth at mouth mold
For：1st area：160~165 DEG C, 2nd area：165~170 DEG C, 3rd area：175~180 DEG C, 4th area：180~185 DEG C, 5th area：185~190
DEG C, 6th area：195~205 DEG C, melt pressure is no more than 10MPa.
Polyvinyl chloride resin described in the present embodiment step 1 is polyvinyl chloride resin of the hardness number 70.
Low temperature toughener described in the present embodiment step 1 is the europeanized powder for learning 's production of Yi Li
Nitrile rubber.
Impact modifier described in the present embodiment step 1 is the methyl-prop of the auspicious specialization work Materials Co., Ltd production in Qingdao sea
E pioic acid methyl ester-BS.
Processing aid described in the present embodiment step 1 be Zhenjiang Qi Mei industry Chemical Co., Ltd. production acrylonitrile-
Styrol copolymer.
Surface compatilizer described in the present embodiment step 1 is the polyoxy base silane of Zhong Jie chemical companies of Changshu City production.
Compound stabilizer described in the present embodiment step 1 is the stable composition of Zhejiang Province Chuanhua Co., Ltd's production
Agent.
Covering agent described in the present embodiment step 1 is the rutile of Henan Baililian Chemical Co., Ltd.'s production
Type titanium dioxide.
Initiator described in the present embodiment step 1 is the cumyl peroxide of Shanghai Hao Hua Chemical Co., Ltd.s.
Crosslinking agent described in the present embodiment step 1 comes for the span of Beijing Yi Taiwei plastic materials Co., Ltd production
Amic acid.
Embodiment 3：The preparation method of PVC composite modification materials, is specifically realized by the following steps：
First, weigh：70 parts of polyvinyl chloride resin, 8 parts of low temperature toughener, 7.4 parts impact-resistant modified is weighed in parts by weight
Agent, 4 parts of processing aid, 1 part of surfactant, 4 parts of compound stabilizer, 3 parts of covering agent, 0.1 part of initiator and
2.5 parts of crosslinking agent；
2nd, premix：By weighed in step 1 70 parts of polyvinyl chloride resin, 4 parts of compound stabilizer and 2 parts of covering agent according to
It is secondary to be put into high-speed mixer, 10min is mixed in the case where temperature is 80 DEG C and rotating speed is 10r/min, obtains pre-composition；
3rd, substep is mixed：By weighed in step 18 parts of low temperature toughener, 4 parts of processing aid and 7.4 parts of anti-impact
Modifying agent is sequentially placed into high-speed mixer, and high-speed mixer design temperature is 110 DEG C, is started high-speed mixer and is in rotating speed
Mixed under 10r/min, when the mixing temperature of high-speed mixer reaches 80 DEG C, add 1 part of surfactant, continue to mix,
Blowing when reaching 110 DEG C to the mixing temperature of high-speed mixer, obtains substep mixture；
4th, it is mixed eventually：The substep mixture that the pre-composition and step 3 that step 2 obtains obtain is sequentially placed into high-speed mixer
In, sequentially add 2.5 parts of the crosslinking agent weighed in step 1 and 0.1 part of initiator, high-speed mixer design temperature are
80 DEG C, start high-speed mixer and mixed in the case where rotating speed is 10r/min, stopped when the mixing temperature of high-speed mixer reaches 80 DEG C
Mixing, obtain mixed thing eventually；
5th, extruding pelletization：End that step 4 is obtained mixes thing and is transferred in extruder, pass sequentially through extruder shearing,
Mixing, kneading and cooling pelletization, obtain PVC composite modification materials；Technological temperature difference of the extrusion from material mouth at mouth mold
For：1st area：160~165 DEG C, 2nd area：165~170 DEG C, 3rd area：175~180 DEG C, 4th area：180~185 DEG C, 5th area：185~190
DEG C, 6th area：195~205 DEG C, melt pressure is no more than 10MPa.
Polyvinyl chloride resin described in the present embodiment step 1 is polyvinyl chloride resin of the hardness number 70.
Low temperature toughener described in the present embodiment step 1 is the europeanized powder for learning 's production of Yi Li
Nitrile rubber.
Impact modifier described in the present embodiment step 1 is the methyl-prop of the auspicious specialization work Materials Co., Ltd production in Qingdao sea
E pioic acid methyl ester-BS.
Processing aid described in the present embodiment step 1 be Zhenjiang Qi Mei industry Chemical Co., Ltd. production acrylonitrile-
Styrol copolymer.
Surface compatilizer described in the present embodiment step 1 is the polyoxy base silane of Zhong Jie chemical companies of Changshu City production.
Compound stabilizer described in the present embodiment step 1 is the stable composition of Zhejiang Province Chuanhua Co., Ltd's production
Agent.
Covering agent described in the present embodiment step 1 is the rutile of Henan Baililian Chemical Co., Ltd.'s production
Type titanium dioxide.
Initiator described in the present embodiment step 1 is the cumyl peroxide of Shanghai Hao Hua Chemical Co., Ltd.s.
Crosslinking agent described in the present embodiment step 1 comes for the span of Beijing Yi Taiwei plastic materials Co., Ltd production
Amic acid.
Embodiment 4：The preparation method of PVC composite modification materials, is specifically realized by the following steps：
First, weigh：Weigh in parts by weight 60 parts polyvinyl chloride resin, 10 parts of low temperature toughener, 9 parts of impact modifier,
5 parts of processing aid, 1 part of surfactant, 5 parts of compound stabilizer, 5 parts of covering agent, 0.5 part of initiator and 4.5
The crosslinking agent of part；
2nd, premix：By weighed in step 1 60 parts of polyvinyl chloride resin, 5 parts of compound stabilizer and 5 parts of covering agent according to
It is secondary to be put into high-speed mixer, 10min is mixed in the case where temperature is 80 DEG C and rotating speed is 10r/min, obtains pre-composition；
3rd, substep is mixed：Weighed in step 1 10 parts of low temperature toughener, 5 parts of processing aid and 9 parts of anti-impact are changed
Property agent be sequentially placed into high-speed mixer, high-speed mixer design temperature be 110 DEG C, start high-speed mixer be in rotating speed
Mixed under 10r/min, when the mixing temperature of high-speed mixer reaches 80 DEG C, add 1 part of surfactant, continue to mix,
Blowing when reaching 110 DEG C to the mixing temperature of high-speed mixer, obtains substep mixture；
4th, it is mixed eventually：The substep mixture that the pre-composition and step 3 that step 2 obtains obtain is sequentially placed into high-speed mixer
In, sequentially add 4.5 parts of the crosslinking agent weighed in step 1 and 0.5 part of initiator, high-speed mixer design temperature are
80 DEG C, start high-speed mixer and mixed in the case where rotating speed is 10r/min, stopped when the mixing temperature of high-speed mixer reaches 80 DEG C
Mixing, obtain mixed thing eventually；
5th, extruding pelletization：End that step 4 is obtained mixes thing and is transferred in extruder, pass sequentially through extruder shearing,
Mixing, kneading and cooling pelletization, obtain PVC composite modification materials；Technological temperature difference of the extrusion from material mouth at mouth mold
For：1st area：160~165 DEG C, 2nd area：165~170 DEG C, 3rd area：175~180 DEG C, 4th area：180~185 DEG C, 5th area：185~190
DEG C, 6th area：195~205 DEG C, melt pressure is no more than 10MPa.
Polyvinyl chloride resin described in the present embodiment step 1 is polyvinyl chloride resin of the hardness number 70.
Low temperature toughener described in the present embodiment step 1 is the europeanized powder for learning 's production of Yi Li
Nitrile rubber.
Impact modifier described in the present embodiment step 1 is the methyl-prop of the auspicious specialization work Materials Co., Ltd production in Qingdao sea
E pioic acid methyl ester-BS.
Processing aid described in the present embodiment step 1 be Zhenjiang Qi Mei industry Chemical Co., Ltd. production acrylonitrile-
Styrol copolymer.
Surface compatilizer described in the present embodiment step 1 is the polyoxy base silane of Zhong Jie chemical companies of Changshu City production.
Compound stabilizer described in the present embodiment step 1 is the stable composition of Zhejiang Province Chuanhua Co., Ltd's production
Agent.
Covering agent described in the present embodiment step 1 is the rutile of Henan Baililian Chemical Co., Ltd.'s production
Type titanium dioxide.
Initiator described in the present embodiment step 1 is the cumyl peroxide of Shanghai Hao Hua Chemical Co., Ltd.s.
Crosslinking agent described in the present embodiment step 1 comes for the span of Beijing Yi Taiwei plastic materials Co., Ltd production
Amic acid.
The PVC composite modification materials prepared to existing PVC material and embodiment 1 to 4 detect, the institute of performance indications table 1
Show, by table 1, compared with existing PVC material, the tensile strength of PVC composite modification materials prepared by the present invention, impact are strong
Degree, heat distortion temperature and modulus of elasticity all increase significantly.
Table 1
Because polyvinyl chloride resin is because of poor heat resistance, the shortcomings of mechanical strength is not high, his effective way industrially is limited.
Therefore the cross-linking modified chemical crosslinking for improving PVC is to improve PVC high temperature tensile strengths, softening temperature and viscoplasticity, dimensionally stable
Property, impact flexibility, heat endurance and electrical property reduce thermal deformation, improves product stress concentration, the shortcomings of cracking, improves
Rigidity, intensity and ageing-resistant performance, it is stronger to raising PVC performance so as to extend the important method that product uses life,
The needs under some specific conditions are met, extend PVC application scenario.
Claims (10)
1.PVC composite modification materials, it is characterised in that PVC composite modification materials in parts by weight by 60~85 parts of polyvinyl chloride resin,
3.5~10 parts of low temperature toughener, 4~9 parts of impact modifier, 2~5 parts of processing aid, 0.5~1 part of surface-active
Agent, 2~5 parts of compound stabilizer, 2~5 parts of covering agent, 0.1~0.5 part of initiator and 0.5~4.5 part of crosslinking agent system
It is standby to form.
2. PVC composite modification materials according to claim 1, it is characterised in that described polyvinyl chloride resin is hardness number 70
Polyvinyl chloride resin.
3. PVC composite modification materials according to claim 1, it is characterised in that described covering agent is rutile-type dioxy
Change titanium.
4. PVC composite modification materials according to claim 1, it is characterised in that described low temperature toughener is powdered nitrile rubber
Rubber；Described impact modifier is MBS；Described processing aid is third
Alkene nitrile-styrol copolymer；Described surfactant is polyoxy base silane.
5. PVC composite modification materials according to claim 1, it is characterised in that described initiator is peroxidating diisopropyl
Benzene；Described crosslinking agent is double maleamic acids.
6. the preparation method of PVC composite modification materials as claimed in claim 1, it is characterised in that it is to complete according to the following steps
's：
First, weigh：60~85 parts of polyvinyl chloride resin, 3.5~10 parts of low temperature toughener, 4~9 parts anti-is weighed in parts by weight
Impact modifier, 2~5 parts of processing aid, 0.5~1 part of surfactant, 2~5 parts of compound stabilizer, 2~5 parts of screening
Lid agent, 0.1~0.5 part of initiator and 0.5~4.5 part of crosslinking agent；
2nd, premix：By weighed in step 1 60~85 parts of polyvinyl chloride resin, 2~5 parts of compound stabilizer and 2~5 parts of screening
Lid agent is sequentially placed into high-speed mixer, and 5min is mixed in the case where temperature is 70 DEG C~80 DEG C and rotating speed is 10r/min~15r/min
~15min, obtains pre-composition；
3rd, substep is mixed：By weighed in step 1 3.5~10 parts of low temperature toughener, 2~5 parts of processing aid and 4~9 parts
Impact modifier be sequentially placed into high-speed mixer, high-speed mixer design temperature be 110 DEG C, start high-speed mixer turn
Speed is to be mixed under 10r/min~15r/min, when the mixing temperature of high-speed mixer reaches 70~80 DEG C, adds 0.5~1 part
Surfactant, continue to mix, blowing when reaching 110 DEG C to the mixing temperature of high-speed mixer, obtain substep mixture；
4th, it is mixed eventually：The substep mixture that the pre-composition and step 3 that step 2 obtains obtain is sequentially placed into high-speed mixer, then
Sequentially add 0.5~4.5 part of the crosslinking agent and 0.1~0.5 part of initiator weighed in step 1, high-speed mixer setting temperature
Spend for 70~80 DEG C, start high-speed mixer and mixed in the case where rotating speed is 10r/min~15r/min, when the mixing of high-speed mixer
Temperature stops mixing when reaching 70~80 DEG C, obtains mixed thing eventually；
5th, extruding pelletization：End that step 4 is obtained mixes thing and is transferred in extruder, pass sequentially through the shearing of extruder, mixing,
Kneading and cooling pelletization, obtain PVC composite modification materials；Technological temperature of the extrusion from material mouth at mouth mold be respectively：1
Area：160~165 DEG C, 2nd area：165~170 DEG C, 3rd area：175~180 DEG C, 4th area：180~185 DEG C, 5th area：185~190 DEG C, 6
Area：195~205 DEG C, melt pressure is no more than 10MPa.
7. the preparation method of PVC composite modification materials according to claim 1, it is characterised in that described in step 1
Polyvinyl chloride resin is polyvinyl chloride resin of the hardness number 70.
8. the preparation method of PVC composite modification materials according to claim 1, it is characterised in that the screening described in step 1
Lid agent is rutile titanium dioxide.
9. the preparation method of PVC composite modification materials according to claim 1, it is characterised in that low described in step 1
Warm toughener is PNBR；Impact modifier described in step 1 is MBS
Copolymer；Processing aid described in step 1 is acrylonitritrile-styrene resin；Surfactant described in step 1 is
Polyoxy base silane.
10. the preparation method of PVC composite modification materials according to claim 1, it is characterised in that described in step 1
Initiator is cumyl peroxide；Crosslinking agent described in step 1 is double maleamic acids.
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| CN112961445A (en) * | 2021-03-02 | 2021-06-15 | 广东联塑科技实业有限公司 | High-gloss polyvinyl chloride resin composition and preparation method and application thereof |
| CN115093653A (en) * | 2022-06-21 | 2022-09-23 | 广东裕泰实业有限公司 | Ultraviolet-proof PVC (polyvinyl chloride) film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112961445A (en) * | 2021-03-02 | 2021-06-15 | 广东联塑科技实业有限公司 | High-gloss polyvinyl chloride resin composition and preparation method and application thereof |
| CN115093653A (en) * | 2022-06-21 | 2022-09-23 | 广东裕泰实业有限公司 | Ultraviolet-proof PVC (polyvinyl chloride) film and preparation method thereof |
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