CN109749372A - A kind of fire-retardant reinforced PBT composite material and preparation method thereof - Google Patents
A kind of fire-retardant reinforced PBT composite material and preparation method thereof Download PDFInfo
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- CN109749372A CN109749372A CN201811645142.8A CN201811645142A CN109749372A CN 109749372 A CN109749372 A CN 109749372A CN 201811645142 A CN201811645142 A CN 201811645142A CN 109749372 A CN109749372 A CN 109749372A
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Abstract
The invention discloses a kind of fire-retardant reinforced PBT composite material and preparation method thereof, which is made of PBT resin, PET resin, brominated epoxy resin, antimonial, glass fibre, glass microballoon, dendrimeric hyperbranched polymer, toughener, age resister, lubricant, nucleating agent and color masterbatch.Preparation method is as follows: 1) predrying of PBT resin and PET resin；2) premixing of PBT resin, PET resin, brominated epoxy resin, antimonial, dendrimeric hyperbranched polymer, toughener, age resister, lubricant, nucleating agent and color masterbatch；3) glass fibre and glass microballoon, extruding pelletization are added.Fire-retardant reinforced PBT composite material of the invention has many advantages, such as high glaze, good stability of the dimension, low warpage, good weatherability, and preparation process is simple, lower production costs, is suitable as pressure gauge housing material.
Description
Technical field
The present invention relates to a kind of fire-retardant reinforced PBT composite materials and preparation method thereof.
Background technique
Pressure gauge is a kind of using very extensive industrial products, it almost spreads all industrial flow and scientific research neck
Domain is seen everywhere in fields such as heat distribution pipe network, oil gas transmission, water and air supply systems, has the effects that display, monitoring, early warning.State
Mark (GB), Europe superscript (EN) and American Standard (ASME) are all made that corresponding standard criterion system, such as GB/T- to the precision of pressure gauge
Accuracy class is just defined in 1226 and GB/T1277 state mark system, is 0.1,0.16,0.25,0.4,1.0,1.6,2.5 respectively
With 4.0, they correspond to different error requirements.As it can be seen that pressure gauge has quite strictly measuring accuracy and security reliability
Requirement.The shell of pressure gauge not only acts as protection and aesthetic effect, and is sufficiently reflected to its precision.
Modified polyester material is widely used in all kinds of electronic apparatus shells, pressure gauge housing be exactly application example it
One.However, the pressure gauge housing that traditional fire-retardant reinforced PBT composite material is prepared is easy to appear, surface floating fiber is serious, makes
The problems such as part dimensional contraction rate is big, intensity is insufficient not only will affect the beauty of pressure gauge, but also influence very on its measurement accuracy
Greatly, security and stability is poor.
Therefore, it is necessary to develop a kind of pressure gauge housing material that comprehensive performance is more excellent.
Summary of the invention
The purpose of the present invention is to provide a kind of fire-retardant reinforced PBT composite materials and preparation method thereof.
The technical solution used in the present invention is:
A kind of fire-retardant reinforced PBT composite material is made of the raw material of following mass percent:
PBT resin: 30%~40%；
PET resin: 10%~15%；
Brominated epoxy resin: 8%~10%；
Antimonial: 2%~4%；
Glass fibre: 29%~31%；
Glass microballoon: 3%~5%；
Dendrimeric hyperbranched polymer: 0.2%~1%；
Toughener: 4%~6%；
Age resister: 0.5%~0.9%；
Lubricant: 0.4%~0.8%；
Nucleating agent: 0.2%~0.5%；
Color masterbatch: 1%~1.5%.
Preferably, the intrinsic viscosity of the PBT resin is 0.75~1.00dl/g.
Preferably, the intrinsic viscosity of the PET resin is 0.78~1.10dl/g.
Preferably, the molecular weight of the brominated epoxy resin is 20000~30000 (number-average molecular weights).
Preferably, the antimonial is at least one of antimony oxide, antimony pentoxide, sodium antimonate.
Preferably, the glass fibre is chopped strand.
Preferably, the dendrimeric hyperbranched polymer is superbrnaching end-hydroxy polyester.
Preferably, the toughener is POE graft glycidyl methacrylate (POE-g-GMA), methacrylic acid-
Butadiene-styrene copolymer (MBS), Styrene-Butadiene-Styrene Block Copolymer (SBS), methacrylate-the third
At least one of olefin(e) acid ester copolymer (ACR), silicon systems toughener.
Preferably, the age resister is by primary antioxidant, auxiliary antioxidant and ultraviolet absorbing agent according to mass ratio 1:2:3
It compounds, primary antioxidant is at least one of Hinered phenols antioxidant, sulfur-containing compound kind antioxidant, and auxiliary antioxidant is
At least one of phosphite ester antioxidant, thioester antioxidant, ultraviolet absorbing agent are benzophenone ultraviolet suction
Receive at least one of agent, Benzotriazole Ultraviolet Stabilizer, triazine-based ultraviolet absorbent.
Preferably, the primary antioxidant is at least one of antioxidant 1010, antioxidant 1098, antioxidant 1076.
Preferably, the auxiliary antioxidant is irgasfos 168.
Preferably, the lubricant is pentaerythritol stearate (PETS), ethylene bis stearamide (EBS), lubricant
At least one of TAF, silicone.
The preparation method of above-mentioned fire-retardant reinforced PBT composite material, comprising the following steps:
1) PBT resin and PET resin are dried；
2) by PBT resin, PET resin, brominated epoxy resin, antimonial, dendrimeric hyperbranched polymer, toughener,
High-speed mixer is added in age resister, lubricant, nucleating agent and color masterbatch, mixes；
3) material in high-speed mixer is transferred to double screw extruder, and by glass fibre and glass microballoon from glass fiber opening or
Side feed material injects double screw extruder, and extruding pelletization obtains fire-retardant reinforced PBT composite material.
Preferably, the screw slenderness ratio of the step 3) double screw extruder be 35~40, engine speed be 300~
400r/min, squeezing out processing temperature is 200~250 DEG C.
It is further preferred that the engine speed of the step 3) double screw extruder is 320~360r/min.
The beneficial effects of the present invention are: fire-retardant reinforced PBT composite material of the invention has high glaze, dimensional stability
The advantages that good, low warpage, good weatherability, preparation process is simple, lower production costs, is suitable as pressure gauge housing material.
1) fire-retardant reinforced PBT composite material of the invention is also added with PET resin and dendroid using PBT resin as substrate
Dissaving polymer, and it is added with brominated epoxy resin fire retardant, so that PBT composite has surface high glaze, low floating fibre
The advantages that；
2) it is added with glass fibre and glass microballoon in fire-retardant reinforced PBT composite material of the invention, both ensure that alloy
The intensity of material, while also it is possible to prevente effectively from situations such as shrinking percentage is big, warpage is serious, cracking occurs in product；
3) short molding cycle of fire-retardant reinforced PBT composite material of the invention.
Specific embodiment
The present invention will be further explained combined with specific embodiments below and explanation.
Embodiment and comparative example:
The raw material composition of the PBT composite of Examples 1 to 4 and comparative example 1~5 is as shown in the table (according to quality percentage
Than meter):
The raw material of the PBT composite of 1 Examples 1 to 4 of table and comparative example 1~5 forms table (%)
Note:
The trade mark of PBT resin is 1200-211M, TaiWan, China Changchun；
The trade mark of PET resin is TRN-8580FH, Japanese Supreme Being people；
The trade mark of brominated epoxy resin is PH-116, German BASF；
The trade mark of glass fibre (chopped strand) is ECS13-4.5-534A, Jushi Group Co., Ltd.；
The trade mark of glass microballoon is 050-20-216, French SOVITEC；
The trade mark of dendrimeric hyperbranched polymer is CYD-C600, and main component is superbrnaching end-hydroxy polyester, Weihai morning
Source molecule new material Co., Ltd；
The trade mark of POE-g-GMA (POE graft glycidyl methacrylate) is E516, the light new material section of Ningbo energy
Skill limited liability company；
Age resister is by antioxidant 1010, irgasfos 168 and Benzotriazole Ultraviolet Stabilizer according to mass ratio 1:2:3
It compounds.
The trade mark of nucleating agent is Licomont NAV101, Clariant；
In addition, the raw material in table without special instruction is commercial product.
Test case:
The PBT composite of Examples 1 to 4 and comparative example 1~5 is tested for the property, test result is as follows shown in table:
The performance test results of the PBT composite of 2 Examples 1 to 4 of table and comparative example 1~5
Note:
Batten injection molding is carried out according to iso standard, Mechanics Performance Testing is tested according to iso standard, and flame retardant property executes
94 flame-retardant test criteria of U.S. UL.
Internal diameter: pressure gauge contains liquid portion (mold internal diameter is 110.45mm), it is desirable that molding cooling measures straight afterwards for 24 hours
Diameter is within the scope of 110.15~110.21mm.
Test result analysis:
From Tables 1 and 2: the glass fiber content for being not added with the PBT composite of PET resin exceeds 29%~31% model
It encloses, resulting product internal diameter does not meet required size；PET resin, glass microballoon and dendrimeric hyperbranched polymer three
Person's synergistic effect, can be such that PBT composite is more readily processed, and obtained pressure gauge housing surface gloss is high, while can be with
Pressure gauge housing is avoided cracking phenomena occur；The dispersion of the solid powders such as fire retardant can be improved in dendrimeric hyperbranched polymer
Property, the dosage of fire retardant can be reduced；Nucleating agent can shorten molding cycle, improve production efficiency.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of fire-retardant reinforced PBT composite material, it is characterised in that: be made of the raw material of following mass percent:
PBT resin: 30%~40%；
PET resin: 10%~15%；
Brominated epoxy resin: 8%~10%；
Antimonial: 2%~4%；
Glass fibre: 29%~31%；
Glass microballoon: 3%~5%；
Dendrimeric hyperbranched polymer: 0.2%~1%；
Toughener: 4%~6%；
Age resister: 0.5%~0.9%；
Lubricant: 0.4%~0.8%；
Nucleating agent: 0.2%~0.5%；
Color masterbatch: 1%~1.5%.
2. fire-retardant reinforced PBT composite material according to claim 1, it is characterised in that: the intrinsic viscosity of the PBT resin
For 0.75~1.00dl/g.
3. fire-retardant reinforced PBT composite material according to claim 1, it is characterised in that: the intrinsic viscosity of the PET resin
For 0.78~1.10dl/g.
4. fire-retardant reinforced PBT composite material according to claim 1, it is characterised in that: point of the brominated epoxy resin
Son amount is 20000~30000.
5. fire-retardant reinforced PBT composite material according to claim 1, it is characterised in that: the antimonial is three oxidations
At least one of two antimony, antimony pentoxide, sodium antimonate.
6. fire-retardant reinforced PBT composite material according to claim 1, it is characterised in that: the dendrimeric hyperbranched polymerization
Object is superbrnaching end-hydroxy polyester.
7. fire-retardant reinforced PBT composite material according to claim 1, it is characterised in that: the toughener is that POE is grafted first
Base glycidyl acrylate, Methacrylate-butadiene-styrene, s-B-S block are total
At least one of polymers, Methylacrylate-Acrylate Copolymer, silicon systems toughener.
8. fire-retardant reinforced PBT composite material according to claim 1, it is characterised in that: the age resister is by main antioxygen
Agent, auxiliary antioxidant and ultraviolet absorbing agent are compounded according to mass ratio 1:2:3, primary antioxidant be Hinered phenols antioxidant,
At least one of sulfur-containing compound kind antioxidant, auxiliary antioxidant are phosphite ester antioxidant, in thioester antioxidant
At least one, ultraviolet absorbing agent be benzophenone ultraviolet absorbent, Benzotriazole Ultraviolet Stabilizer, triazines
At least one of ultraviolet absorbing agent.
9. fire-retardant reinforced PBT composite material according to claim 1, it is characterised in that: the lubricant is pentaerythrite
At least one of stearate, ethylene bis stearamide, lubricant TAF, silicone.
10. the preparation method of fire-retardant reinforced PBT composite material described in any one of claim 1~9, it is characterised in that:
The following steps are included:
1) PBT resin and PET resin are dried；
2) by PBT resin, PET resin, brominated epoxy resin, antimonial, dendrimeric hyperbranched polymer, toughener, anti-ageing
High-speed mixer is added in agent, lubricant, nucleating agent and color masterbatch, mixes；
3) material in high-speed mixer is transferred to double screw extruder, and by glass fibre and glass microballoon from glass fiber opening or side feed
Material injection double screw extruder, extruding pelletization obtain fire-retardant reinforced PBT composite material.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111187578A (en) * | 2020-02-26 | 2020-05-22 | 江苏斯迪克新材料科技股份有限公司 | Bendable protective film for high-flexibility curved screen and preparation method thereof |
| CN113337089A (en) * | 2021-07-22 | 2021-09-03 | 合肥圆融新材料有限公司 | Glass fiber reinforced PBT (polybutylene terephthalate) composite material and preparation method thereof |
| CN116622209A (en) * | 2023-06-26 | 2023-08-22 | 广东兴盛迪科技有限公司 | A high-strength and warpage-resistant flame-retardant PC composite material and its application |
| WO2024071585A1 (en) * | 2022-09-29 | 2024-04-04 | (주) 엘지화학 | Thermoplastic resin composition and automobile interior part manufactured therefrom |
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