CN104592666A - Low-glossiness low-odor ASA material and preparation method thereof - Google Patents

Abstract

The invention discloses a low-glossiness low-odor ASA material and a preparation method thereof. The low-glossiness low-odor ASA material comprises the following raw materials in percentage by weight: 40%-70% of SAN, 20%-40% of toughening agents, 2%-15% of heat-resistant agents, 1%-5% of flatting agents and 0.5%-5% of deodorants. The preparation method comprises the following steps of uniformly mixing the raw materials, then adding the mixture to a main barrel of a double-screw extruder, wherein the screw rod diameter is 35 mm, and the length-diameter ratio L/D is equal to 36; controlling the temperature of the main barrel in sections, wherein the temperature from a feed opening to a machine head outlet is 220 DEG C, 220 DEG C, 225 DEG C, 225 DEG C, 225 DEG C and 225 DEG C, and the rotation speed of a main engine is 300 turns/minute; carrying out melt extrusion, water groove cooling, drying treatment, dicing and the like to obtain a product. The low-glossiness low-odor ASA material disclosed by the invention can be used for carrying out modifying treatment on ASA by adding the flatting agents and the deodorants, thereby effectively reducing the glossiness of the ASA material and improving the smell; the low-glossiness low-odor ASA material disclosed by the invention has the advantages of simple preparation process, low production cost and excellent low glossiness and low odor, and can be applied to an automotive interior part and the like.

Description

A kind of low gloss, low smell ASA material and preparation method thereof

Technical field

The present invention relates to a kind of low gloss, low smell ASA material and preparation method thereof, by melt extruding of matting agent, deodovization agent and ASA material is prepared low gloss, low smell ASA material, belong to polymer modification and manufacture field.

Background technology

ASA engineering plastics have excellent over-all properties, have good mechanical and physical performance, resistance to elevated temperatures, static resistance, and it has excellent weathering resistance, forming process and mechanical workout better, of many uses, by a large amount of for fields such as automobile decoration piece, industrial electronic, household electrical appliance.

But common ASA is when being used as material for car interior trim parts, because its glossiness is higher, Driver Vision fatigue can be easily caused even to cause traffic accident, traditional method carries out spraying, covering skin at ASA article surface, or mould frosted, to obtain low gloss surface, but cost is higher.

Along with the requirement of people to automotive upholstery is more and more higher, especially take environment and comfort level, the requirement of the Air quality in automobile is also improved thereupon.All contain a certain amount of volatile organic compounds in current most of inside gadget material, under the effect such as high temperature, microorganism, a certain amount of gas can be produced, the symptoms such as the discomfort that this smell can cause people is even dizzy.At present, the main engine plants such as masses, Ford, in order to improve the odor profiles control to automotive upholstery, are also proposed corresponding odor detection standard.Therefore develop a kind of can meet low gloss require can ensure that again the ASA material of low odor properties just has important practical significance.

Summary of the invention

The object of the invention is to provide a kind of low gloss, low smell ASA material and preparation method thereof.

To achieve these goals, the present invention by the following technical solutions.

A kind of low gloss, low smell ASA material, form according to the raw material of following weight percent:

Described SAN is acrylonitritrile-styrene resin.

Described toughner is the ASA graft copolymer of glue content 60%.

Described heat-resistant agent is vinylbenzene-N-phenylmaleimide-anhydrous maleic acid copolymer.

Described matting agent is crosslinked SAN, and plastic prod can be made to reach low gloss and matte effect.

Described deodovization agent is the organic inorganic powder of parent that is white, multi-cellular structure and particle, and it has high adsorptive power to smell and organism, has good dispersiveness in macromolecular material simultaneously.As deodovization agent BYK 22366, Shanghai Zhuan Jing Chemical Co., Ltd..

A preparation method for low gloss, low smell ASA material, the steps include:

(1) take raw material by above-mentioned weight percent, mix;

(2) raw material after mixing is put in the main barrel of twin screw extruder, screw diameter 35mm, length-to-diameter ratio L/D=36, machine barrel Discrete control temperature, from charging opening to head, outlet is 220 DEG C, 220 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, engine speed is 300 revs/min, through melt extruding, tank cooling, drying treatment, obtains product after the operation such as pelletizing.

Advantage of the present invention is:

1, the present invention by adding matting agent to ASA, deodovization agent makes modification, significantly reduces the glossiness of ASA material, improves odor profiles;

2, the present invention propose low gloss, low smell ASA material preparation technology comparatively simple, production cost is lower, and it has excellent low gloss, low odor profiles, can be applicable to automotive upholstery etc.

Embodiment

Below by specific embodiment, the present invention is further illustrated, but described embodiment is only for illustration of the present invention instead of limitation of the present invention.

The embodiment of the present invention is raw materials used:

SAN: acrylonitritrile-styrene resin, model PN-127H, Taiwan Qi Mei company;

Toughner: ASA high glue powder, model 960A, glue content 60%, GE company of the U.S.;

Heat-resistant agent: DENKA IP heat-proof modifier, MS-NIP is granular, electrochemically industry (Shanghai) trade Co., Ltd;

Matting agent: matting agent BMAT, Shanghai Su Xin Industrial Co., Ltd.;

Deodovization agent: deodovization agent BYK 22366, Shanghai Zhuan Jing Chemical Co., Ltd..

Product performance testing method of the present invention is as follows:

By the particulate material prepared as stated above, drying 3 ~ 4 hours in the convection oven of 80 ~ 90 DEG C, and then dried particulate material is carried out injection molding sample preparation on injection moulding machine.

Tensile strength is tested: undertaken by ISO 527-2 standard, specimen size is 170*10*4mm, and draw speed is 50mm/min.

Flexural strength is tested: undertaken by ISO 178 standard, specimen size is 80*10*4mm, and rate of bending is 2mm/min, and span is 64mm.

Simply supported beam notched Izod impact strength is tested: undertaken by ISO 179-1 standard, specimen size is 80*10*4mm.

Heat-drawn wire is tested: undertaken by ISO 75-2 standard, specimen size is 80*10*4mm, and condition is 0.45MPa, 120 DEG C/h.

Glossiness is tested: by ASTM D523 standard testing, test angle is 60 °.

Oder levels is tested: according to popular PV3900 standard testing.

The mechanical property of material by test the tensile strength of gained, flexural strength, notched Izod impact strength numerical value pass judgment on.

The thermal characteristics of material is passed judgment on by the numerical value of the heat-drawn wire recorded.

The luster performance of material is passed judgment on by the gloss value recorded.

The odor properties of material is divided into according to standard regulation: 1 grade, odorlessness; 2 grades, scent of, but non interference smell; 3 grades, there is obvious smell, but non interference smell; 4 grades, there is interference smell; 5 grades, there is strong interference smell; 6 grades, there is insupportable smell.

The formula of embodiment and comparative example and properties test result are shown in lower each table:

Table 1 embodiment 1 ~ 5 and comparative example 1 ~ 3 material prescription table (% by weight)

Table 2 embodiment 1 ~ 5 and comparative example 1 ~ 3 test result

By comparing embodiment 1,2,3 and comparative example 1,2,3 known, matting agent add the glossiness significantly reducing ASA material, and along with the increase gradually of matting agent, the glossiness of ASA material reduces gradually.By comparing embodiment 2,4,5 and comparative example 1,2,3 known, adding of deodovization agent obviously reduces the odor profiles of ASA material, and along with the increase gradually of deodovization agent, the smell of ASA material is also more and more weak.Low gloss provided by the invention, low smell ASA material can meet the requirement of automotive upholstery to material low gloss performance, masses, Ford and the main engine plants such as domestic can be met again to the requirement of low scent material, can be applied in automotive upholstery well, improve comfortableness by bus and security.

Claims (6)

1. low gloss, a low smell ASA material, is characterized in that: form according to the raw material of following weight percent:

2. a kind of low gloss according to claim 1, low smell ASA material, is characterized in that: described toughner is the ASA graft copolymer of glue content 60%.

3. a kind of low gloss according to claim 1, low smell ASA material, is characterized in that: described heat-resistant agent is vinylbenzene-N-phenylmaleimide-anhydrous maleic acid copolymer.

4. a kind of low gloss according to claim 1, low smell ASA material, is characterized in that: described matting agent is crosslinked SAN.

5. a kind of low gloss according to claim 1, low smell ASA material, is characterized in that: described deodovization agent is the organic inorganic powder of parent that is white, multi-cellular structure and particle BYK 22366.

6. prepare a method for low gloss described in claim 1, low smell ASA material, it is characterized in that: the steps include:

(1) take raw material by above-mentioned weight percent, mix;

(2) raw material after mixing is put in the main barrel of twin screw extruder, screw diameter 35mm, length-to-diameter ratio L/D=36, machine barrel Discrete control temperature, from charging opening to head, outlet is 220 DEG C, 220 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, engine speed is 300 revs/min, through melt extruding, tank cooling, drying treatment, obtains product after the operation such as pelletizing.