CN104744822B - Environmental protection pp plastic bottle - Google Patents

Abstract

The present invention discloses a kind of environmental protection PP plastic bottle, and its material is consisted of by mass parts：90 parts of PP resins, 15 parts of POE resin, 0.1 0.5 part 1,3:2,4 two pairs of methyl benzylidene sorbitols, 15 parts of resistance to stress are turned white agent, 26 parts of maleic anhydride inoculated polypropylenes, 0.1 0.5 parts of antioxidant 1010s.The environmental protection PP plastic bottle of the present invention, has a good fold resistant and resistance to stress is turned white characteristic.

Description

Environmental protection PP plastic bottle

Technical field

The present invention relates to a kind of plastic bottle, more particularly, to a kind of environmental protection PP plastic bottle.

Background technology

Polypropylene PP is one of five big class general-purpose plastics, due to its abundant raw material source, low price, is easily processed into Type, product high comprehensive performance, therefore purposes are widely, it has also become kind with fastest developing speed in resins for universal use, extensively apply In inner and outer decorative parts of automobile, electronics and household electronic products.Although polypropylene has many merits, polypropylene there is also one A little weak points, such as do not reach strong and unyielding sexual balance, the polypropylene of high-moduluss tends not to reach HI high impact simultaneously well, high Impact polypropylene nor reach high-moduluss simultaneously；Simultaneously some parts also require material have good proof stress turn white, Stress cracking performance.

In injection moulding process, easily at ejection position, stress compares concentration to polypropylene PP product, produces silver in force part Stricture of vagina, a large amount of minute internal crackles that crazing region produces, these crackles cause refractive power to change, and show as turning white, that is, top white Phenomenon, leads to products appearance unqualified；In use, some special constructions such as card base etc. is easily subject to some polypropylene articles Power and produce stress whitening, cracking situation.

Content of the invention

The technical problem to be solved is, in view of the shortcomings of the prior art, there is provided a kind of environmental protection PP Plastic bottle.

For solving above-mentioned technical problem, the technical solution used in the present invention is：

A kind of environmental protection PP plastic bottle, its material is consisted of by mass parts：90 parts of PP resins, 1-5 part POE resin, 0.1-0.5 Part 1,3:2,4- bis- to methyl benzylidene sorbitol, and 1-5 part resistance to stress is turned white agent, 2-6 part maleic anhydride inoculated polypropylene, 0.1- 0.5 part of antioxidant 1010.

Preferably,

Described resistance to stress turns white agent for TiO₂、SnO₂And ZrO₂One of or its mixture.

Described resistance to stress turns white agent by 20-45wt%TiO₂, 20-45wt%SnO₂And 20-45wt%ZrO₂Mix.

1,3:2,4- bis- to methyl benzylidene sorbitol, No. CAS:54686-97-4, English name:1,3:2,4-Di-p- methylbenzylidene sorbitol.

Can be prepared by the environmental protection PP plastic bottle of the present invention using method generally in the art.

The environmental protection PP plastic bottle of the present invention, has a good fold resistant and resistance to stress is turned white characteristic.

Specific embodiment

Embodiment 1-4：

Each component according to corresponding embodiment 1-4 in formula table 1 is weighed and is got the raw materials ready, and by these raw materials in mixed at high speed It is dry mixed 5 minutes in device.

(3) the above-mentioned raw material mixing is put into extruding pelletization in double screw extruder, screw speed is 500 revs/min, temperature Degree：One 190-200 DEG C of area, two 200-220 DEG C of areas, three 220-235 DEG C of areas, four 215-220 DEG C of areas；The extrusion time is 2 points Clock, pressure is 12-18MPa.

Can be prepared by MODIFIED PP plastic pellet, then the environmental protection PP plastic bottle that the present invention is obtained using this area conventional method.

Table 1：Environmental protection PP plastic bottle material formula list position：Kilogram

	Embodiment 1	Embodiment 2	Embodiment 3	Embodiment 4	Comparative example
						PP resin	90	90	90	90	90
POE resin	3	3	3	3	3
						1,3:2,4- bis- is to methyl benzylidene sorbitol	0.3	0.3	0.3	0.3	0.3
TiO2	1	1.5	1.5	-	-
						SnO2	1	1.5	-	1.5	-
ZrO2	1	-	1.5	1.5	-
						Maleic anhydride inoculated polypropylene	3.5	3.5	3.5	3.5	3.5
Antioxidant 1010	0.2	0.2	0.2	0.2	0.2

Wherein,

The PP resin of Samsung Dao Daer PPRJ580 selected by PP resin.

POE resin selects the injection grade POE resin of the trade mark DF610 of Mitsui Chemicals, Inc.'s production.

Titanium dioxide TiO₂, tin ash SnO₂With zirconium dioxide ZrO₂Particle diameter all control between 0.1-0.4 μm.

Maleic anhydride inoculated polypropylene, also known as bulking agent PP-g-MAH, selects brand to be Clariant in embodiment The maleic anhydride inoculated polypropylene of CLARIANT model MA 6452PP.

Antioxidant 1010 selects the antioxidant 1010 (CAS of BASF AG's model AO-60：31570-04-4).

Comparative example：

Each component according to corresponding comparative example in formula table 1 is weighed and is got the raw materials ready, and the method according to embodiment 1 is prepared and changes Property PP plastic pellet.

Test case 1：

Under room temperature condition, the MODIFIED PP plastic pellet of above-mentioned prepared embodiment 1-4 and comparative example is respectively prepared into 10 pieces The plastic plate of 100mm × 100mm × 3mm, the steel ball of the weight a diameter of 50mm of 500g is highly dropped into plastic plate from 300mm enterprising Row test, then records the diameter in area of turning white, calculates its meansigma methods, test data is shown in Table 2.

Table 2：Resistance to stress is turned white test table

	The diameter in stress whitening region, mm
		Embodiment 1	3.4
Embodiment 2	5.2
		Embodiment 3	5.7
Embodiment 4	5.5
		Comparative example	14.2

As can be seen from Table 2, the present invention is turned white titanium dioxide TiO in agent using resistance to stress₂, tin ash SnO₂And dioxy Change zirconium ZrO₂Three compounds, and arbitrarily compounds two-by-two with respect to it, stress-whitening resistance can be increased dramatically, Synergistic, produces Give birth to unexpected technique effect.

Ultimate principle and principal character and the advantages of the present invention of the present invention have been shown and described above.The technology of the industry , it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description is originally for personnel The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and its Equivalent thereof.

Claims (1)

1. a kind of environmental protection PP plastic bottle is it is characterised in that its material is consisted of by mass parts：90 parts of PP resins, 1-5 part POE tree Fat, 0.1-0.5 part 1,3:2,4- bis- to methyl benzylidene sorbitol, and 1-5 part resistance to stress is turned white agent, and the grafting of 2-6 part maleic anhydride is poly- Propylene, 0.1-0.5 part antioxidant 1010；

Described resistance to stress turns white agent by 20-45wt%TiO₂, 20-45wt%SnO₂And 20-45wt%ZrO₂Mix.