CN105623172B - A kind of flame-retardant high-impact modified polystyrene resin and preparation method thereof - Google Patents
A kind of flame-retardant high-impact modified polystyrene resin and preparation method thereof Download PDFInfo
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- CN105623172B CN105623172B CN201410627619.5A CN201410627619A CN105623172B CN 105623172 B CN105623172 B CN 105623172B CN 201410627619 A CN201410627619 A CN 201410627619A CN 105623172 B CN105623172 B CN 105623172B
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Abstract
The invention discloses a kind of flame-retardant high-impact modified polystyrene resin, weight compositions are as follows: 10 ~ 99 parts of high impact polystyrene；0 ~ 79 part of polyphenylene oxide；0 ~ 8 part of expanding material；1 ~ 12 part of fire retardant；0.1 ~ 1.2 part of antioxidant；0.1 ~ 0.5 part of lubricant.The resin the preparation method comprises the following steps: each component is mixed 5 ~ 20min under the conditions of 60 ~ 90 DEG C by high-speed mixer after, it is spare；By feed device, the above-mentioned material mixed is sent into double screw extruder, shearing, mixing and conveying of the mixed material through screw rod adequately fuse, and finally after extrusion, tie rod, cooling, modified polystyrene pellet is made.The resin uses halogen-free flame retardants, and simultaneously and polyphenylether blending, improves mechanical properties decrease problem caused by the addition because of fire retardant, and except the comprehensive mechanical property of HIPS is got a promotion, while not generating because of the environmental hazard of halogen bring.
Description
Technical field
The invention belongs to technical field of polymer materials, it is related to a kind of flame-retardant high-impact modified polystyrene resin and its system
Preparation Method.
Background technique
High impact polystyrene (HIPS) is a kind of common resins for universal use, and HIPS comprehensive performance is good, easy processing, wide
General is applied to casing of domestic electrical equipment, electrical appliance, instrument and meter accessory, television set telephone case, refrigerator lining etc., HIPS
For ABS, advantage is that it is of relatively low cost, but is not still able to satisfy the demand in many markets, most
HIPS product requires it with high-grade flame retardant effect.
A certain amount of fire retardant can be all added in order to reach required flame retardant effect in usual producer, and following
The usually decline of mechanical property and the cost endangered while product can be improved to environment, currently on the market most resistance
Firing ABS is all to have used halogen-antimony synergistic system, the product including polybrominated biphenyls and polybrominated diphenyl ethers series of most common of them,
Since the pernicious gases such as dioxin can be generated in burning, forbidden by European Union ROHS instruction.And use triazines and three oxygen
The fire retardant for changing two antimony can greatly improve the cost of fire retardant.
Summary of the invention
In view of the drawbacks of the prior art, the object of the present invention is to provide a kind of flame-retardant high-impact modified polystyrene resin,
The resin uses halogen-free flame retardants, and simultaneously and polyphenylether blending, improves caused by the addition because of fire retardant under mechanical property
Drop problem, and except the comprehensive mechanical property of HIPS is got a promotion, while not generating because halogen bring environment is endangered
Evil.
It is a further object to provide a kind of preparation method of above-mentioned modified polystyrene resin, adopted in this method
With expanding material, melt flowability declines situation caused by improving the addition because of the second component polyphenylene oxide, while material being enable to protect
There is good stability.
To achieve the above object, technical scheme is as follows:
The present invention provides a kind of flame-retardant high-impact modified polystyrene resin, the resin by following parts by weight component system
At:
10 ~ 99 parts of high impact polystyrene；
0 ~ 79 part of polyphenylene oxide；
0 ~ 8 part of expanding material；
1-5 parts of fire retardant
0.1 ~ 1.2 part of antioxidant；
0.1 ~ 0.5 part of lubricant.
The fire retardant is compounding for tributyl phosphate and diphenyl 2 ethylhexyl phosphate, and compounding weight ratio is 1:3.
Invention further provides a kind of flame-retardant high-impact modified polystyrene resins, and the resin is by following parts by weight
Component is made:
10 ~ 59 parts of high impact polystyrene；
30 ~ 79 parts of polyphenylene oxide；
2 ~ 8 parts of expanding material；
1-3 parts of fire retardant
0.1 ~ 1.2 part of antioxidant；
0.1 ~ 0.5 part of lubricant.
The fire retardant is compounding for tributyl phosphate and diphenyl 2 ethylhexyl phosphate, and compounding weight ratio is 1:3.
The high-impact polystyrene resin is injection grade high-impact polystyrene resin.
The polyphenylene oxide (PPO) is injection molding level polyphenylether, elongation at break 80%, water absorption rate 0.1%(wt%).
The expanding material be selected from (styrene/acrylonitrile) copolymer (SAN), (ethylene/acrylic acid) copolymer (
EAA), styrene-grafted copolymer-maleic anhydride (SMAH), in Styrene-Butadiene-Styrene Block Copolymer (SBS)
It is a kind of.
The tributyl phosphate refractive index is 1.43, and flash-point is 146 DEG C.This tributyl phosphate cooperates elongation at break
Be 80%, water absorption rate 0.1%(wt%) polyphenylene oxide use so that composition compatibility performance becomes more excellent, process the suitable of change
Freely, the problems such as can solve the plug material encountered in process, broken strip.
The antioxidant is selected from one or more of Hinered phenols antioxidant and phosphite ester antioxidant.
The Hinered phenols antioxidant was selected from for four [methyl-β-(3,5- di-tert-butyl-hydroxy phenyl) propionic ester] seasons
Doutrate (antioxidant 1010)；
The phosphite ester antioxidant is selected from three (2,4- tert-butyl-phenyl) phosphite esters (irgasfos 168).
The lubricant is selected from stearic acid, calcium stearate, zinc stearate, fatty acid compound, N, and N '-ethylene is double hard
One or more of acyl amine, polyethylene wax and methyl-silicone oil.
The present invention also provides a kind of preparation methods of above-mentioned flame-retardant high-impact modified polystyrene, and this method includes following
Step:
(1) by high impact polystyrene, fire retardant, polyphenylene oxide, expanding material, antioxidant and lubricant, pass through mixed at high speed
It is spare after machine mixes 5 ~ 20min under the conditions of 60 ~ 90 DEG C；
(2) by feed device, the above-mentioned material mixed is sent into double screw extruder, mixed material is through screw rod
It shears, be kneaded and convey, adequately fuse, finally after extrusion, tie rod, cooling, modified polystyrene pellet is made.
The temperature setting in each area of the double screw extruder are as follows: 160 DEG C ~ 180 DEG C of the area I, 160 DEG C ~ 180 DEG C of the area II, III
165 DEG C ~ 190 DEG C of area, 165 DEG C ~ 190 DEG C of the area IV, 165 DEG C ~ 200 DEG C of the area V, 165 DEG C ~ 200 DEG C of the area VI, the area VII 175 DEG C ~ 215
DEG C, 175 DEG C ~ 220 DEG C of the area VIII, 185 DEG C ~ 225 DEG C of the area VIIII, 185 DEG C ~ 230 DEG C of the area X, 200 DEG C ~ 230 DEG C of head temperature.
Compared with prior art, the present invention having the following advantages and beneficial effects:
1, compared with the method for existing common production flame-retarding HIPS, there is no environmental protection brought by halogen is hidden by the present invention
Suffer from, can be tested by ROHS, solve some by ROHS instruction bring limitation, and can guarantee the stability of product.Using
With the method for polyphenylether blending, improve mechanical properties decrease problem caused by the addition because of fire retardant, and makes HIPS's
Comprehensive mechanical property gets a promotion, and only need to make small adjustment in existing production technology, simple process is feasible.
2, tributyl phosphate is compounded with diphenyl 2 ethylhexyl phosphate uses as fire retardant, and flame retardant effect is very excellent, adds
The composition excellent in mechanical performance of amount less, fire-retardant.
3, the present invention uses expanding material, and melt flowability declines feelings caused by improving the addition because of the second component polyphenylene oxide
Condition, while material being enable to possess good stability, suitable for the household appliances and electricity all required to fire-retardant and mechanical property
Sub- product such as casing of domestic electrical equipment, electrical appliance, instrument and meter accessory etc..
Specific embodiment
The invention will be further described with reference to embodiments.
In following embodiment: HIPS is the injection grade high-impact polystyrene resin for household electric appliances, and the trade mark is upper
Hai Saike, 622P；Select injection grade high-impact polystyrene resin the reason of be to be household electric appliances dog-eat-dog, to product at
This requirement strict control, the purpose of the present invention are more suitable for the field that household electric appliances etc. more focus on cost；Polyphenylene oxide is
Injection molding level polyphenylether, the trade mark are Ticona, LW90-S2, elongation at break 40%, water absorption rate 0.1%(wt%)；Expanding material
For (styrene/acrylonitrile) copolymer (SAN), 80HF (Ningbo river in Zhejiang Province is emerging) and Styrene-Butadiene-Styrene Block Copolymer
(SBS), YH802 (Yueyang petrochemical industry), tributyl phosphate refractive index are 1.43, and flash-point is 146 DEG C.
Polystyrene resin the preparation method is as follows:
(1) by the formula rate in table 1 by high impact polystyrene, polyphenylene oxide, expanding material, fire retardant, antioxidant and profit
Lubrication prescription is put into high-speed mixer 70 DEG C, spare after mixing 10min is sufficiently mixed uniformly；
(2) by feed device, mixed material is sent into double screw extruder, shearing, mixed of the mixed material in screw rod
It refines and pellet is made finally after extrusion, tie rod, cooling in the lower adequately fusion of conveying.Wherein, each area of double screw extruder
Temperature setting are as follows: 160 DEG C of the area I, 162 DEG C of the area II, 171 DEG C of the area III, 170 DEG C of the area IV, 175 DEG C of the area V, 179 DEG C of the area VI, the area VII
180 DEG C, 181 DEG C of the area VIII, 190 DEG C of the area VIIII, 191 DEG C of the area X, 200 DEG C of head temperature.
Standard batten is made through screw rod injection moulding in mixed material, carries out every Mechanics Performance Testing and flame retardant rating test.
Testing standard and it the results are shown in Table 2.
Table 1
2230 DEG C of table, be 20-30g/10min under the conditions of 2.16kg
As can be seen from Table 2, tributyl phosphate is compounded with diphenyl 2 ethylhexyl phosphate uses as fire retardant, and flame retardant effect is non-
Few, the fire-retardant composition excellent in mechanical performance of Chang Youyi, additive amount.It is full by the obtained performance of polyphenylether blending in the present invention
Normal household electrical appliances of foot etc. apply upper performance requirement, and are improved in impact property compared with comparative example, are conducive to product resistance
Combustion, applicability are wider.
This hair can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to implementations here
Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be
Within protection scope of the present invention.
Claims (10)
1. a kind of flame-retardant high-impact modified polystyrene resin, it is characterised in that: be made of the component of following parts by weight:
10 ~ 99 parts of high impact polystyrene；
0 ~ 79 part of polyphenylene oxide；
0 ~ 8 part of expanding material；
1-5 parts of fire retardant；
0.1 ~ 1.2 part of antioxidant；
0.1 ~ 0.5 part of lubricant；
The fire retardant is compounding for tributyl phosphate and diphenyl 2 ethylhexyl phosphate, and compounding weight ratio is 1:3.
2. flame-retardant high-impact modified polystyrene resin according to claim 1, it is characterised in that: by following parts by weight
Component is made:
10 ~ 59 parts of high impact polystyrene；
30 ~ 79 parts of polyphenylene oxide；
2 ~ 8 parts of expanding material；
1-3 parts of fire retardant
0.1 ~ 1.2 part of antioxidant；
0.1 ~ 0.5 part of lubricant；
The fire retardant is compounding for tributyl phosphate and diphenyl 2 ethylhexyl phosphate, and compounding weight ratio is 1:3.
3. flame-retardant high-impact modified polystyrene resin according to claim 1 or 2, it is characterised in that: the highly resistance
Rushing polystyrene is injection grade high-impact polystyrene resin.
4. flame-retardant high-impact modified polystyrene resin according to claim 1 or 2, it is characterised in that: the polyphenyl
Ether is injection molding level polyphenylether, elongation at break 40%, water absorption rate 0.1wt%.
5. flame-retardant high-impact modified polystyrene resin according to claim 1 or 2, it is characterised in that: the increase-volume
Agent is selected from (styrene/acrylonitrile) copolymer, (ethylene/acrylic acid) copolymer, styrene-grafted copolymer-maleic anhydride, benzene second
One of alkene-butadiene-styrene block copolymer.
6. flame-retardant high-impact modified polystyrene resin according to claim 1 or 2, it is characterised in that: the phosphoric acid
Tributyl refractive index is 1.43, and flash-point is 146 DEG C.
7. flame-retardant high-impact modified polystyrene resin according to claim 1 or 2, it is characterised in that: the antioxygen
Agent is selected from one or more of Hinered phenols antioxidant and phosphite ester antioxidant.
8. flame-retardant high-impact modified polystyrene resin according to claim 7, it is characterised in that: the Hinered phenols
Antioxidant is selected from β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester, four [methylene -3- (the tertiary fourths of 3,5- bis-
Base -4- hydroxy phenyl) propionic ester] methane, 2,6 di tert butyl 4 methyl phenol, 2,4,6- tri-butyl-phenol and 2,2'- sulphur
Dai Shuan (4- methyl-6-tert-butylphenol) more than one；
The phosphite ester antioxidant is selected from triphenyl phosphite, trisnonylphenyl phosphite and three (the tertiary fourths of 2,4- bis-
Base phenyl) phosphite ester more than one.
9. flame-retardant high-impact modified polystyrene resin according to claim 1 or 2, it is characterised in that: the lubrication
Agent is selected from stearic acid, calcium stearate, zinc stearate, N, one of N '-ethylene bis stearamide, polyethylene wax and methyl-silicone oil
More than.
10. the preparation method of flame-retardant high-impact modified polystyrene resin described in claim 1, it is characterised in that: this method
The following steps are included:
(1) by high impact polystyrene, fire retardant, polyphenylene oxide, expanding material, antioxidant and lubricant, existed by high-speed mixer
It is spare after mixing 5 ~ 20min under the conditions of 60 ~ 90 DEG C；
(2) by feed device, the above-mentioned material mixed is sent into double screw extruder, mixed material is cut through screw rod
It cuts, be kneaded and convey, adequately fuse, finally after extrusion, tie rod, cooling, modified polystyrene pellet is made；
The temperature setting in each area of the double screw extruder are as follows: 160 DEG C ~ 180 DEG C of the area I, 160 DEG C ~ 180 DEG C of the area II, the area III
165 DEG C ~ 190 DEG C, 165 DEG C ~ 190 DEG C of the area IV, 165 DEG C ~ 200 DEG C of the area V, 165 DEG C ~ 200 DEG C of the area VI, 175 DEG C ~ 215 DEG C of the area VII,
175 DEG C ~ 220 DEG C of the area VIII, 185 DEG C ~ 225 DEG C of the area VIIII, 185 DEG C ~ 230 DEG C of the area X, 200 DEG C ~ 230 DEG C of head temperature.
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| CN107987447A (en) * | 2017-12-18 | 2018-05-04 | 衢州华睿工业设计有限公司 | A kind of high impact polystyrene material and its application |
| CN108485229A (en) * | 2017-12-19 | 2018-09-04 | 宁波甬尚聚新材料有限公司 | A kind of flame-retardant polyphenyl ether resin alloy and preparation method thereof |
| CN110229455A (en) * | 2019-06-10 | 2019-09-13 | 宜宾天原集团股份有限公司 | A kind of high impact modified polystyrene air-conditioning internal machine case material and preparation method thereof |
| CN112143094B (en) * | 2019-06-28 | 2022-04-26 | 合肥杰事杰新材料股份有限公司 | Regenerated polyolefin plastic composition and preparation method and application thereof |
| CN112831132B (en) * | 2021-01-29 | 2022-03-01 | 湖南省升阳新材料有限公司 | Flame-retardant color master batch for XPS (extruded polystyrene) foaming insulation board and preparation method thereof |
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