CN102675765A

CN102675765A - Formula of modified polystyrene

Info

Publication number: CN102675765A
Application number: CN2012101588825A
Authority: CN
Inventors: 徐春华
Original assignee: Suzhou New District Huashida Engineering Plastic Co Ltd
Current assignee: Suzhou New District Huashida Engineering Plastic Co Ltd
Priority date: 2012-05-22
Filing date: 2012-05-22
Publication date: 2012-09-19

Abstract

The invention discloses a formula of modified polystyrene, which comprises polystyrene, an antioxidant, a filler, a foaming agent, a photostabilizer and an antistatic agent, wherein the antioxidant is N-phenyl-alpha-naphthylamine, the filler is talcum powder, the foaming agent is sodium lauryl sulfate, the photostabilizer is 2-hydroxy-methoxydiphenyl ketone, and the antistatic agent is polyoxyethylene sorbitan monostearate. According to the formula, the modified polystyrene has the advantages of antistatic property, aging resistance, low cost, favorable mechanical properties and the like.

Description

A kind of prescription of MPS

Technical field

The present invention relates to a kind of plastic formula, be specifically related to a kind of prescription of MPS.

Background technology

PS is meant by vinylbenzene MonomerThrough radical polycondensation synthetic Polymkeric substance, English name is Polystyrene, japanese name is a Port リスチロー Le, is called for short PS.It is a kind of water white Thermoplastics, have and be higher than 100 Glass transition temp, therefore often be used to make the one-trip container that various needs bear the temperature of boiling water, and disposable foam food boxes etc.

In the actual life, the product of all kinds of PS is widely used, and PS is also developed the product in each obstructed field, like fire-retardant system, modification system or the like, makes PS become more wide in making scope and range of application.

In recent years; MPS is used widely; But also there are many shortcomings, produce static when, product higher like the cost of product uses, be prone to the appearance of situation such as aging, controlled the market of MPS greatly; The research and development of therefore, a kind of antistatic, anti-aging, MPS that cost is low are the problems that we continue to solve.

Summary of the invention

The object of the present invention is to provide that a kind of antistatic, anti-aging, cost are low, the prescription of the MPS of good mechanical property.

Technical scheme of the present invention is; A kind of prescription of MPS comprises PS, oxidation inhibitor, weighting agent, whipping agent, photostabilizer and static inhibitor, and described oxidation inhibitor is the N-PA; Weighting agent is a talcum powder; Whipping agent is a sodium lauryl sulphate, and photostabilizer is 2-hydroxyl-4-methoxy benzophenone, and static inhibitor is a polyoxyethylene sorbitan monostearate.

In preferred embodiment of the present invention; Each composition weight percent of the prescription of described MPS is that PS accounts for 80%-90%; The N-PA accounts for 5%-8%, and talcum powder accounts for 3%-4.5%, and sodium lauryl sulphate accounts for 0.5%-1.5%; 2-hydroxyl-4-methoxy benzophenone accounts for 1%-3.5%, and polyoxyethylene sorbitan monostearate accounts for 0.5%-2.5%.

In preferred embodiment of the present invention; Each composition proportion of the prescription of described MPS is that PS accounts for 87%; The N-PA accounts for 5.8%, and talcum powder accounts for 3.6%, and sodium lauryl sulphate accounts for 0.9%; 2-hydroxyl-4-methoxy benzophenone accounts for 1.3%, and polyoxyethylene sorbitan monostearate accounts for 1.4%.

According to the invention is a kind of prescription of MPS, makes the MPS that makes have effects such as antistatic, anti-aging, cost are low, good mechanical property.

Embodiment

Set forth in detail in the face of preferred embodiment of the present invention down, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.

According to the invention is a kind of prescription of MPS; Comprise PS, oxidation inhibitor, weighting agent, whipping agent, photostabilizer and static inhibitor; Described oxidation inhibitor is the N-PA, and weighting agent is a talcum powder, and whipping agent is a sodium lauryl sulphate; Photostabilizer is 2-hydroxyl-4-methoxy benzophenone, and static inhibitor is a polyoxyethylene sorbitan monostearate.

Further; Each composition weight percent of the prescription of described MPS is that PS accounts for 80%-90%; The N-PA accounts for 5%-8%, and talcum powder accounts for 3%-4.5%, and sodium lauryl sulphate accounts for 0.5%-1.5%; 2-hydroxyl-4-methoxy benzophenone accounts for 1%-3.5%, and polyoxyethylene sorbitan monostearate accounts for 0.5%-2.5%.

Further, each composition proportion of the prescription of described MPS is that PS accounts for 87%, and the N-PA accounts for 5.8%; Talcum powder accounts for 3.6%; Sodium lauryl sulphate accounts for 0.9%, and 2-hydroxyl-4-methoxy benzophenone accounts for 1.3%, and polyoxyethylene sorbitan monostearate accounts for 1.4%.

Wherein, the physicals of this MPS is through following testing method and test condition: placed 24 hours 23 ℃ of probe temperatures, 50 ℃ of relative humidity in room temperature.Table specific as follows:

Test event	Unit	Testing method	Measured data
				Density	g/cm3	D792	1.188
Notched Izod impact strength	J/M	D256	50
				Bending strength	mpa	D790	39.19
Modulus in flexure	mpa	D790	3310.5
				Tensile strength	mpa	D638	20.23
Elongation at break	%	D638	31.81

Can debug according to different ratios according to different demands, thereby reach different results of use.This product is mainly used in the round brush product on the household electrical appliance.

The above is merely embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the present invention disclosed; Variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.

Claims

1. the prescription of a MPS; It is characterized in that: comprise PS, oxidation inhibitor, weighting agent, whipping agent, photostabilizer and static inhibitor; Described oxidation inhibitor is the N-PA, and weighting agent is a talcum powder, and whipping agent is a sodium lauryl sulphate; Photostabilizer is 2-hydroxyl-4-methoxy benzophenone, and static inhibitor is a polyoxyethylene sorbitan monostearate.

2. the prescription of MPS according to claim 1; It is characterized in that: each composition weight percent of the prescription of described MPS is that PS accounts for 80%-90%; The N-PA accounts for 5%-8%, and talcum powder accounts for 3%-4.5%, and sodium lauryl sulphate accounts for 0.5%-1.5%; 2-hydroxyl-4-methoxy benzophenone accounts for 1%-3.5%, and polyoxyethylene sorbitan monostearate accounts for 0.5%-2.5%.

3. the prescription of MPS according to claim 2; It is characterized in that: each composition proportion of the prescription of described MPS is that PS accounts for 87%; The N-PA accounts for 5.8%, and talcum powder accounts for 3.6%, and sodium lauryl sulphate accounts for 0.9%; 2-hydroxyl-4-methoxy benzophenone accounts for 1.3%, and polyoxyethylene sorbitan monostearate accounts for 1.4%.