CN103360751B

CN103360751B - anti-aging PPO-PA plastic alloy

Info

Publication number: CN103360751B
Application number: CN201310300414.1A
Authority: CN
Inventors: 高腾
Original assignee: XUZHOU TENGFEI ENGINEERING PLASTIC Co Ltd
Current assignee: XUZHOU TENGFEI ENGINEERING PLASTICS CO LTD
Priority date: 2013-07-15
Filing date: 2013-07-15
Publication date: 2015-10-07
Anticipated expiration: 2033-07-15
Also published as: CN103360751A

Abstract

The invention discloses a kind of anti-aging PPO-PA plastic alloy, be made up of by weight following component: 40-50 part PPO, 40-50 part PA, 4-8 part compatilizer, 0.5-1.5 part antiaging agent.Anti-aging PPO-PA plastic alloy of the present invention, both the thermotolerance of PA, weathering resistance and molding processibility had been maintained, rigidity when being heated under which in turn improving underload, thermotolerance is given prominence to, and has excellent mechanical property, dimensional stability, oil-proofness, electrical insulating property and shock resistance etc.Mud guard is made mainly for the production of the external decoration parts such as the car body component such as vehicle-body outer panel, safety lever, mud guard and wheel cap, lens cover, covering, rear plate, front wing panel, inlet pipe and the electric parts/automobile such as fuse unit, junctor; Make external decoration lens cover and apron plate.

Description

Anti-aging PPO-PA plastic alloy

Technical field

The present invention relates to a kind of polyblend, particularly relate to a kind of anti-aging PPO-PA plastic alloy.

Background technology

Polyphenylene oxide, is called for short PPO, English name: Polyphenylene Oxide, is one of large general engineering plastic in the world five.It has the advantages such as rigidity is large, thermotolerance is high, difficulty is fired, intensity is excellent compared with high electrical performance.In addition, polyphenylene oxide also has the advantages such as wear-resisting, nontoxic, anti-pollution.The specific inductivity of PPO and dielectric loss are one of minimum kinds in engineering plastics, hardly by the impact of temperature, humidity, can be used for basic, normal, high frequency electric field field.The load deformation temperature of PPO can reach more than 190 DEG C, and embrittlement temperature is-170 DEG C.PPO material is as one of large general engineering plastic in the world five, and nontoxic, relative density is little, is that five large general engineering plastic Midst density are minimum, has good physical strength, creep resistance, and proof stress relaxes, and fatigue resistance is high.

Polymeric amide, be called for short PA, be commonly called as nylon, Shi Shi DuPont develops the resin for fiber at first, realizes industrialization in nineteen thirty-nine.Start development and production injection-molded item the 1950's, the requirement meet the lightweight of downstream industry goods with substituted metal, reducing costs.PA has good over-all properties, comprise mechanical property, thermotolerance, wearability, chemical proofing and self lubricity, and frictional coefficient is low, there is certain flame retardant resistance, be easy to processing, be suitable for, by glass fibre and other filler filling enhancing modified, improving performance and broadened application scope.

But current PPO-PA plastic alloy ageing resistance is not good.

Summary of the invention

For above shortcomings in prior art, technical problem to be solved by this invention is to provide a kind of anti-aging PPO-PA plastic alloy, has good ageing resistance.

Technical problem to be solved by this invention is achieved by the following technical solution:

A kind of anti-aging PPO-PA plastic alloy, is made up of by weight following component: 40-50 part PPO, 40-50 part PA, 4-8 part compatilizer, 0.5-1.5 part antiaging agent.

Described antiaging agent, be made up of by weight following component: 30-50 part 4, the two octadecyl of 4 '-thiobis (the 6-tertiary butyl-3-methylphenol), 30-50 part 1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane, 10-30 part thio-2 acid.

4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), No. CAS: 96-69-5, English name: 4,4'-Thio-bis (6-tert-butyl-m-methyl phenol).

1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane, No. CAS: 1843-03-4,4,4', 4''-(1-methyl-1-propanyl-3-ylidene) tris [2-(1,1-dimethylethyl)-5-methyl-Phenol.

The two octadecyl of thio-2 acid, English name: Distearyl thiodipropionate, No. CAS: 693-36-7.

Two to 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), 1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane and thio-2 acid octadecyl is uniformly mixed, this antiaging agent can be obtained.

Described compatilizer is POE-g-MAH, PP-g-MA, PP-g-AA, EAA, PS-g-PMMA, PS-g-MAH, PP-g-Pa6, PS-b-PMMA, PS-b-PBA, PE-g-ST, PP-g-ST, ABS-g-MAH, PP-g-MAH, EVA, SEBS, SEBS-g-MAH or PE-g-MAH.

Industry universal method can be adopted to be prepared anti-aging PPO-PA plastic alloy of the present invention, and such as: take each component by proportioning, after mixing, melting mixing, extruding pelletization, namely obtain described anti-aging PPO-PA plastic alloy.

Concrete, can for take each component by proportioning, in mixing machine, control rotating speed under room temperature at 300-400 rev/min, mixing 5-10 minute, proceeds to after taking-up in screw extrusion press, extruding pelletization at 240-260 DEG C of temperature, namely obtains described anti-aging PPO-PA plastic alloy.

Obviously, in the present invention for improving other performances of product, other auxiliary agents can also be added adaptively, as fire retardant, tinting material and static inhibitor etc.

Contriver is drawn by great many of experiments, by 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), 1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane and the two octadecyl three kinds of antiaging agents of thio-2 acid carry out reasonable composite use, synergy, antiageing effect is obvious.

Anti-aging PPO-PA plastic alloy of the present invention, both the thermotolerance of PA, weathering resistance and molding processibility had been maintained, rigidity when being heated under which in turn improving underload, thermotolerance is given prominence to, and has excellent mechanical property, dimensional stability, oil-proofness, electrical insulating property and shock resistance etc.Mud guard is made mainly for the production of the external decoration parts such as the car body component such as vehicle-body outer panel, safety lever, mud guard and wheel cap, lens cover, covering, rear plate, front wing panel, inlet pipe and the electric parts/automobile such as fuse unit, junctor; Make external decoration lens cover and apron plate, and there is outstanding heat aging performance, use under being adapted at thermal extremes environment.

Embodiment

Embodiment 1

Each raw material is taken according to embodiment 1 data corresponding in table 1.Each component is joined in high-speed mixer, controls rotating speed under room temperature at 350 revs/min, mix 8 minutes, proceed to after taking-up in screw extrusion press, extruding pelletization at 250 DEG C of temperature, obtain anti-aging PPO-PA plastic alloy.

Table 1: anti-aging PPO-PA plastic alloy formula table unit: kilogram

	Embodiment 1	Embodiment 2	Embodiment 3	Embodiment 4
					PA resin	45	45	45	45
PPO resin	45	45	45	45
					Compatilizer SEBS-g-MAH	6	6	6	6
4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol)	0.4	0.8	/	0.5
					1,1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane	0.4	/	0.8	0.5
The two octadecyl of thio-2 acid	0.2	0.2	0.2	/

The PA66 resin of du pont company trade mark 101L selected by PA resin;

PPO resin adopts the husky primary basic company trade mark to be the PPO resin of N190X-701.

Embodiment 2-4

Each raw material is taken respectively according to embodiment 2-4 data corresponding in table 1.The method described in embodiment 1 is adopted to prepare described anti-aging PPO-PA plastic alloy.

Test case 1

According to thermo-oxidative ageing experimental standard GB/T7141-2008, artificially roughening (90 DEG C, 500h) is carried out to obtained plastics, and measures tensile strength, the Izod notched impact strength before and after this plastic artificial's accelerated deterioration respectively.

Tensile strength × 100% before stretching strength retentivity=(tensile strength before the tensile strength-artificial accelerated aging after artificial accelerated aging) ÷ artificial accelerated aging.

Izod notched impact strength × 100% before shock strength conservation rate=(Izod notched impact strength before the Izod notched impact strength-artificial accelerated aging after artificial accelerated aging) ÷ artificial accelerated aging.

Table 2: plastics ageing resistance test chart (90 DEG C, 500h)

	Stretching strength retentivity, %	Izod notched impact strength conservation rate, %
			Embodiment 1	83.0	82.6
Embodiment 2	81.8	81.4
			Embodiment 3	82.4	81.8
Embodiment 4	82.1	81.5

Claims

1. an anti-aging PPO-PA plastic alloy, is characterized in that, is made up of by weight following component: 40-50 part PPO, 40-50 part PA, 4-8 part compatilizer, 0.5-1.5 part antiaging agent;

Described antiaging agent is made up of by weight following component: 30-50 part 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), 30-50 part 1, the two octadecyl of 1,3-tri-(2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane, 10-30 part thio-2 acid.

2. anti-aging PPO-PA plastic alloy as claimed in claim 1, is characterized in that: described compatilizer is POE-g-MAH, PP-g-MA, PP-g-AA, EAA, PS-g-PMMA, PS-g-MAH, PP-g-PA6, PS-b-PMMA, PS-b-PBA, PE-g-ST, PP-g-ST, ABS-g-MAH, PP-g-MAH, EVA, SEBS, SEBS-g-MAH or PE-g-MAH.

3. anti-aging PPO-PA plastic alloy as claimed in claim 2, is characterized in that: described compatilizer is SEBS-g-MAH.