CN107459742A - Flame-proof weather-resisting pvc material composition and its preparation method and application - Google Patents
Flame-proof weather-resisting pvc material composition and its preparation method and application Download PDFInfo
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- CN107459742A CN107459742A CN201710841720.4A CN201710841720A CN107459742A CN 107459742 A CN107459742 A CN 107459742A CN 201710841720 A CN201710841720 A CN 201710841720A CN 107459742 A CN107459742 A CN 107459742A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention relates to a kind of flame-proof weather-resisting pvc material composition and its preparation method and application.The flame-proof weather-resisting pvc material composition, in parts by weight, including the following raw material component：100 parts of Corvic, 1~5 part of processing aid, 1.8~4 parts of stabilizer, 8~13 parts of modification agent, 0.1~0.5 part of lubricant, 0.5~1.5 part of ultraviolet absorber, 4~15 parts of fire retardant, 1~15 part of filler, 0~0.05 part of colouring matter, wherein, the stabilizer is at least one of organo-tin het stabilizer, magnesium-aluminum-zinc composite stabilizer；The modification agent is at least one of ACR, ABS.The weather-proof pvc material composition of the environmental protection flame retardant strength character of guarantee, has excellent impact resistance with excellent weather resistance and while anti-flammability.
Description
Technical field
The present invention relates to new material technology field, more particularly to flame-proof weather-resisting pvc material composition and its preparation
Methods and applications.
Background technology
The insulation of common hot water pipe, cold and hot wetting system and Protection Product, it is using aluminum, ferrous metal as table mostly
Material, core material is done with pearl rock, rock wool, polyurethane foam etc., be combined through being glued.
And metal exist cost it is high, than it is great, deformed intolerant to burn into after restorative difference, the shortcomings of finished product heaviness, and with
Enhancing of the country to awareness of saving energy, economize on resources consumption, using the product of polyvinyl chloride (PVC) material, such as protects material adhesive plaster, has
Easy plastics sucking moulding, light weight, heat-insulation and heat-preservation, surface does not absorb water, easy to clean, is easily replaced after outmoded, and anticorrosion, acidproof
Alkali etc. characteristic, can be used to replace metal.
However, existing PVC material generally existing weatherability is poor, service life is short, poor fire, and easily melting is even burnt
The deficiencies of, so as to cause to be limited in practical ranges to mould Dai Gang.
The content of the invention
Based on this, it is necessary to provide one kind and have excellent weather resistance, intensity is good, and the flame-proof weather-resisting polychlorostyrene second with fire resistance
Alkene material compositions.
A kind of flame-proof weather-resisting pvc material composition, in terms of weight point, including the following raw material component：
Wherein, the stabilizer be organo-tin het stabilizer, methyl tin heat stabilizer, in magnesium-aluminum-zinc composite stabilizer extremely
Few one kind；
The modification agent is at least one of ACR, ABS (acrylonitrile-butadiene-styrene resin).
In one of the embodiments, in terms of weight point, including the following raw material component：
In one of the embodiments, the stabilizer is butanethiol tin, double butyl tin oxide, thiol methyl tin, horse
Come at least one of sour dibutyl tin, octyl mercaptan tin, tin dilaurate dioctyl tin, dioctyl tin maleate.
In one of the embodiments, the stabilizer is thiol methyl tin and octyl mercaptan tin；The thiol methyl tin
Weight ratio with octyl mercaptan tin is 0.5~2：1.0~2.5；
The modification agent is ACR and ABS；The weight ratio of the ACR and ABS are 5~9：4~8.
In one of the embodiments, the ultraviolet absorber be septichen phenyl ester, UV-P, UV-0, UV-531,
At least one of UV-9, UV-327, UV-3035, phosphorous acid esters, Hinered phenols.
In one of the embodiments, the fire retardant is that antimony oxide, magnesium hydroxide, phosphate, nano concave earth are multiple
At least one of mould assembly fire retardant, Firebrake ZB.Preferably antimony oxide.
In one of the embodiments, the lubricant be calcium stearate, it is zinc stearate, stearic acid, butyl stearate, more
At least one of first compound acid esters of alcohol.
In one of the embodiments, the filler is at least one of titanium dioxide, talcum powder, calcium carbonate powder.It is excellent
Choosing, the filler is titanium dioxide.
In one of the embodiments, the processing aid is methyl methacrylate-butyl acrylate copolymer.
The present invention also provides the preparation method of described flame-proof weather-resisting pvc material composition, comprises the following steps：
By the polyvinyl chloride, stabilizer, processing aid, modification agent, lubricant, ultraviolet absorber, fire retardant, filler and
Colouring agent mixes, and obtains mixed material；
Shearing preplasticizing is carried out to the mixed material, is plastified again after extrusion；Shaping, you can.
In one of the embodiments, the temperature of the shearing preplasticizing is 130~180 DEG C, and rotating speed is 35~60rpm；
The temperature of the plasticizing is 130~145 DEG C, and rotating speed is 30~40rpm.
The present invention also provides application of the described flame-proof weather-resisting pvc material composition in shield material is prepared.
Compared with prior art, the invention has the advantages that：
Flame-proof weather-resisting pvc material composition of the present invention, each raw material and parts by weight scope are rationally being set
Under the premise of, ultraviolet absorber and fire retardant are added in the composition, and specific modification agent is selected, to enter to Corvic
Row surface is modified, and makes ultraviolet absorber and fire retardant can be dispersed in resin system, is improved with reference to specific stabilizer
The stability of system course of reaction, ensures the mechanical property of polyvinyl chloride system, and then PVC is had excellent weather resistance and resistance
While combustion property, ensure the strength character of the weather-proof pvc material composition of environmental protection flame retardant, make it have excellent impact resistance
Performance.
Further, coordinate and use specific ultraviolet absorber and fire retardant, the flame-proof weather-resisting polyvinyl chloride can be optimized
The ultraviolet screening effect of material compositions, weatherability, and flame retardant effect.
The preparation method of flame-proof weather-resisting pvc material composition of the present invention, it is simple to operate, it is easy to industry should
With.Further, plastified twice at a certain temperature in preparation process, obtained flame-proof weather-resisting polyvinyl chloride can be optimized
The strength character of material compositions.
Brief description of the drawings
Fig. 1 is the structural representation that existing PVC protects material adhesive plaster；
Fig. 2 is the structural representation of the PVC shield material adhesive plasters in one embodiment of the invention；
Fig. 3 is that the PVC shown in multilayer graph 2 protects the schematic diagram that material adhesive plaster overlaps.
Embodiment
Below in conjunction with specific embodiment to flame-proof weather-resisting pvc material composition and preparation method thereof of the present invention and
Using being described in further detail.
Each raw material used in the embodiment of the present invention is commercially available prod, wherein,
Modification agent ABS and ACR, purchased from the FM-40 of Japanese KANEKA companies；
Fire retardant antimony oxide, purchased from the fire-retardant green wood joint-stock company of Guangdong space star；
Filler titanium dioxide, purchased from the R-TC30 of Huntsman Corporation of the U.S.；
The compound acid esters of polyalcohol, reach precision chemical limited company purchased from Taiwan hundred；
Magnesium-aluminum-zinc composite stabilizer, purchased from Guangdong Sen Deli environmental friendly materials Science and Technology Ltd..
Every physical property appraisal procedure in the embodiment of the present invention is as follows：
Anti-flammability oxygen index (OI) and burning behavior class test：
The test of adhesive plaster oxygen index (OI), commission third party SGS detections meet GB/T 2406.1-2008 and GB/T2406.1-
2009 specifications.It can be seen that oxygen index (OI) is higher to represent that anti-flammability is better and burning behavior class is higher.
Weather resistance is tested：
Using U.S.'s Q-LAB boards, model QUV-340A is tested, and method meets ASTM-G154 specifications.Weatherability
Rank is higher, and to represent weather-proof effect better.
The test of resistance to cold：
Using the safe fine jade board in Taiwan, model CTL-60 is tested, and method meets ASTM-D1790 specifications.It is cold-resistant strong
Degree fraction is higher, and to represent resistance to cold better.
The test of impact strength：
Using the homemade impact resistance experiment board of Hong Xin companies, model VF-40DCA-10 is tested, and method meets grand
Believe the inspection criterion of impact strength.Impact strength fraction is higher to be represented impact resistance to pat intensity better.
Embodiment 1-4
Four kinds of flame-proof weather-resisting pvc material compositions of the present embodiment, include the raw material components (table 1) of following parts by weight：
Table 1
The preparation method of above-mentioned flame-proof weather-resisting pvc material composition, comprises the following steps：
(1) successively by PVC powder, stabilizer, methyl methacrylate-butyl acrylate copolymer, modification agent, lubrication
Agent, ultraviolet absorber, fire retardant, filler and colorant add thermal agitation machine, are sufficiently mixed uniformly；
(2) material of step (1) is sheared through planet multi-screw extruder and plastified：Driving screw temperature is 130~180 DEG C, is turned
Speed is 35~60rpm；Then extrude, roll turbine plasticizing：Processing temperature is 130~145 DEG C,
Rotating speed is 30~40rpm；Drawn again using calender tabletting, stretching-machine, adhesive plaster is introduced to cooling wheel group and cooled down and is determined
The insulation shield timber-used flame-proof weather-resisting pvc material composition (PVC adhesive plasters) of weather-resistance flame-retardant is made in type, rolling machine winding.
Common PVC adhesive plasters structure can as shown in figure 1, and the structure of above-mentioned PVC adhesive plasters as shown in Fig. 2 wherein ultraviolet suction
Receiving agent 22 and fire retardant 21 can be dispersed in adhesive plaster, and then play excellent weatherability and anti-flammability.When specifically used,
Can be used alone, also can multilayer build-up use together (as shown in Figure 3).
Embodiment 5-6
Two kinds of flame-proof weather-resisting pvc material compositions of the present embodiment, include the raw material components (table 2) of following parts by weight：
Table 2
The preparation method of above-mentioned flame-proof weather-resisting pvc material composition is the same as embodiment 1-3.
Embodiment 7-8
Two kinds of flame-proof weather-resisting pvc material compositions of the present embodiment, include the raw material components (table 3) of following parts by weight：
Table 3
The preparation method of above-mentioned flame-proof weather-resisting pvc material composition is the same as embodiment 1-3.
Embodiment 9-10
Two kinds of flame-proof weather-resisting pvc material compositions of the present embodiment, include the raw material components (table 4) of following parts by weight：
Table 4
The preparation method of above-mentioned flame-proof weather-resisting pvc material composition is the same as embodiment 1-3.
Comparative example 1-3
Three kinds of pvc material compositions of this comparative example, include the raw material components (table 5) of following parts by weight：
Table 5
The preparation method of above-mentioned flame-proof weather-resisting pvc material composition is the same as embodiment 1-3.
The performance test of embodiment 1-10 comparative example 1-3 products, (table 4) as a result as shown in the table：
Table 4
As shown in Table 4, the fire resistance oxygen index (OI) of embodiment 1 is up to 35%, and burning behavior class reaches B1 levels, and display is made
Good weatherability, the impact strength performance of the flame-proof weather-resisting pvc material composition obtained are good, its QUV irradiation weather-proof ranks of 200h
Up to 4~5 grades, for (- 35 DEG C) intensity that resists cold up to 85%, impact strength is up to 82%.
The fire resistance oxygen index (OI) of embodiment 2 is up to 35%, and burning behavior class reaches B1 levels, shows obtained fire-retardant resistance to
Good weatherability, the impact strength performance of time pvc material composition are good, and its fire resistance oxygen index (OI) is better than embodiment 1, its
The QUV irradiations weather-proof ranks of 200h are also only second to embodiment 1 up to 4 grades, and up to 80%, impact strength is up to (- 35 DEG C) intensity that resists cold
85%.And fire retardant does not have the phenomenon of precipitation in process.
The fire resistance oxygen index (OI) of embodiment 3 is up to 37%, and burning behavior class reaches B1 levels, shows obtained fire-retardant resistance to
Good weatherability, the impact strength performance of time pvc material composition are good, and its fire resistance oxygen index (OI) is better than embodiment 1, its
The QUV irradiations weather-proof ranks of 200h are also only second to embodiment 1 up to 4 grades, and up to 80%, impact strength is up to (- 35 DEG C) intensity that resists cold
88%.And fire retardant does not have the phenomenon of precipitation in process.
The fire resistance oxygen index (OI) of embodiment 4 is up to 35%, and burning behavior class reaches B1 levels, shows obtained fire-retardant resistance to
Good weatherability, the impact strength performance of time pvc material composition are good, and its fire resistance oxygen index (OI) is better than embodiment 1, its
QUV irradiates the weather-proof ranks of 200h up to 4~5 grades equivalent to embodiment 1, and up to 75%, impact strength is up to (- 35 DEG C) intensity that resists cold
82%.And fire retardant does not have the phenomenon of precipitation in process.
The fire resistance oxygen index (OI) of embodiment 5 is up to 38%, and burning behavior class reaches B1 levels, shows obtained fire-retardant resistance to
Good weatherability, the impact strength performance of time pvc material composition are good, and its fire resistance oxygen index (OI) is better than embodiment 1, its
QUV irradiates the weather-proof ranks of 200h up to 4~5 grades equivalent to embodiment 1, and up to 88%, impact strength is up to (- 35 DEG C) intensity that resists cold
82%, better than embodiment 1.And fire retardant does not have the phenomenon of precipitation in process.
The fire resistance oxygen index (OI) of embodiment 6 is up to 38%, and burning behavior class reaches B1 levels, shows obtained fire-retardant resistance to
Good weatherability, the impact strength performance of time pvc material composition are good, and its fire resistance oxygen index (OI) is better than embodiment 1, its
QUV irradiates the weather-proof ranks of 200h up to 4~5 grades equivalent to embodiment 1, and up to 85%, impact strength is up to (- 35 DEG C) intensity that resists cold
85%, better than embodiment 1.And fire retardant does not have the phenomenon of precipitation in process.
The fire resistance oxygen index (OI) of embodiment 7 is up to 37%, and burning behavior class reaches B1 levels, shows obtained fire-retardant resistance to
Good weatherability, the impact strength performance of time pvc material composition are good, and its fire resistance oxygen index (OI) is better than embodiment 1, its
QUV irradiates the weather-proof ranks of 200h up to 4~5 grades equivalent to embodiment 1, and up to 86%, impact strength is up to (- 35 DEG C) intensity that resists cold
82%, better than embodiment 1.And fire retardant does not have the phenomenon of precipitation in process.
The fire resistance oxygen index (OI) of embodiment 8 is up to 37%, and burning behavior class reaches B1 levels, shows obtained fire-retardant resistance to
Good weatherability, the impact strength performance of time pvc material composition are good, and its fire resistance oxygen index (OI) is better than embodiment 1, its
QUV irradiates the weather-proof ranks of 200h up to 4~5 grades equivalent to embodiment 1, and up to 85%, impact strength is up to (- 35 DEG C) intensity that resists cold
85%, better than embodiment 1.And fire retardant does not have the phenomenon of precipitation in process.
The fire resistance oxygen index (OI) of embodiment 9 is up to 33%, and burning behavior class reaches B1 levels, shows obtained fire-retardant resistance to
Good weatherability, the impact strength performance of time pvc material composition are good, and its fire resistance oxygen index (OI) is better than embodiment 1, its
QUV irradiates the weather-proof ranks of 200h up to 4~5 grades equivalent to embodiment 1, and up to 78%, impact strength is up to (- 35 DEG C) intensity that resists cold
80%.And fire retardant does not have the phenomenon of precipitation in process.
The fire resistance oxygen index (OI) of embodiment 10 is up to 32%, and burning behavior class reaches B1 levels, shows obtained fire-retardant
Good weatherability, the impact strength performance of weather-proof pvc material composition are good, and its fire resistance oxygen index (OI) is better than embodiment 1,
Its QUV irradiates the weather-proof ranks of 200h up to 4~5 grades equivalent to embodiment 1, and for (- 35 DEG C) intensity that resists cold up to 79%, impact strength is high
Up to 81%.And fire retardant does not have the phenomenon of precipitation in process.
The fire resistance oxygen of comparative example 1 refers to as 20%, and burning behavior class is B3 levels, shows obtained polyvinyl chloride material
Material combination, its fire resistance oxygen index (OI) are substantially inferior to embodiment 1, and its QUV irradiates the weather-proof level special talents of 200h up to 1~2 grade, relatively implements
Example 1 is poor, and (- 35 DEG C) intensity that resists cold is up to 20%, impact strength 60%.Comparing embodiment 1 is shown：Intensity is poor, weatherability
It is very low nearly unavailable, it is identical with general adhesive plaster.
The fire resistance oxygen index (OI) of comparative example 2 is 22%, and burning behavior class is B3 levels, shows obtained common insulation
Material PVC adhesive plasters 10 are protected, its fire resistance oxygen index (OI) is substantially inferior to embodiment 2, and its QUV irradiates the weather-proof level special talents of 200h up to 1~2 grade
Embodiment 2 is relatively worse than, for (- 35 DEG C) intensity that resists cold up to 20%, impact strength is up to 65%.Comparing embodiment 2 is shown：Intensity compared with
Difference, weatherability is very low nearly unavailable, identical with general adhesive plaster.
The fire resistance oxygen index (OI) of comparative example 3 is 25%, and burning behavior class is B3 levels, shows obtained common insulation
Material PVC adhesive plasters 10 are protected, its fire resistance oxygen index (OI) is substantially inferior to embodiment 1, and its QUV irradiates the weather-proof level special talents of 200h up to 2~3 grades
Embodiment 1 is relatively worse than, for (- 35 DEG C) intensity that resists cold up to 30%, impact strength is up to 68%.Comparing embodiment 1 is shown：Intensity compared with
Difference, weatherability is very low nearly unavailable, identical with general adhesive plaster.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. flame-proof weather-resisting pvc material composition, it is characterised in that in parts by weight, including the following raw material component：Wherein, the stabilizer is at least one of organo-tin het stabilizer, magnesium-aluminum-zinc composite stabilizer；The modification agent is at least one of ACR, ABS.
- 2. flame-proof weather-resisting pvc material composition according to claim 1, it is characterised in that in terms of weight point, bag Include the following raw material component：
- 3. flame-proof weather-resisting pvc material composition according to claim 1, it is characterised in that the stabilizer is fourth Base tin mercaptides, double butyl tin oxide, thiol methyl tin, dibutyitin maleate, octyl mercaptan tin, tin dilaurate dioctyl tin, At least one of dioctyl tin maleate.
- 4. flame-proof weather-resisting pvc material composition according to claim 3, it is characterised in that the stabilizer is sulphur Alcohol methyl tin and octyl mercaptan tin；The weight of the thiol methyl tin and octyl mercaptan tin ratio is 0.5~2：1.0~2.5；The modification agent is ACR and ABS；The weight ratio of the ACR and ABS are 5~9：4~8.
- 5. flame-proof weather-resisting pvc material composition according to claim 1, it is characterised in that the ultraviolet absorber For in septichen phenyl ester, UV-P, UV-0, UV-531, UV-9, UV-327, UV-3035, phosphorous acid esters, Hinered phenols At least one.
- 6. flame-proof weather-resisting pvc material composition according to claim 1, it is characterised in that the fire retardant is three Aoxidize at least one of two antimony, magnesium hydroxide, phosphate, nano concave earth composite fire retardant, Firebrake ZB.
- 7. the flame-proof weather-resisting pvc material composition according to claim any one of 1-6, it is characterised in that the profit Lubrication prescription is at least one of calcium stearate, zinc stearate, stearic acid, butyl stearate, the compound acid esters of polyalcohol；The filler For at least one of titanium dioxide, talcum powder, calcium carbonate powder；The processing aid is methyl methacrylate-acrylic acid fourth Ester copolymer.
- 8. the preparation method of the flame-proof weather-resisting pvc material composition described in claim any one of 1-7, it is characterised in that Comprise the following steps：By the Corvic, stabilizer, processing aid, modification agent, lubricant, ultraviolet absorber, fire retardant, filler and Colouring agent mixes, and obtains mixed material；Shearing preplasticizing is carried out to the mixed material, is plastified again after extrusion；Shaping, you can.
- 9. the preparation method of flame-proof weather-resisting pvc material composition according to claim 8, it is characterised in that described The temperature for shearing preplasticizing is 130~180 DEG C, and rotating speed is 35~60rpm；The temperature of the plasticizing is 130~145 DEG C, rotating speed For 30~40rpm.
- 10. application of the flame-proof weather-resisting pvc material composition in shield material is prepared described in claim any one of 1-7.
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| CN109054216A (en) * | 2018-05-29 | 2018-12-21 | 广东联塑科技实业有限公司 | A kind of corrugated dual-wall hard PVC pipe and preparation method thereof |
| CN109749300A (en) * | 2018-12-14 | 2019-05-14 | 安徽坤和电气有限公司 | A kind of flame-retardant high-strength plastic-steel gantry and preparation method thereof |
| CN111732796A (en) * | 2020-06-03 | 2020-10-02 | 无锡宏义高分子材料科技有限公司 | PVC (polyvinyl chloride) filling material with high flexural modulus and low cost and preparation method thereof |
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