CN104341771A - Wear-resisting anti-aging polyurethane plastic and preparation method thereof - Google Patents
Wear-resisting anti-aging polyurethane plastic and preparation method thereof Download PDFInfo
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- CN104341771A CN104341771A CN201410525394.2A CN201410525394A CN104341771A CN 104341771 A CN104341771 A CN 104341771A CN 201410525394 A CN201410525394 A CN 201410525394A CN 104341771 A CN104341771 A CN 104341771A
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Abstract
The invention relates to a wear-resisting anti-aging polyurethane plastic and preparation method thereof. The wear-resisting anti-aging polyurethane plastic comprises 100 parts of polyether polyol, 10-30 parts of toluene diisocynate, 10-20 parts of polyethylene glycol, 2-5 parts of an ultraviolet light absorber, 4-8 parts of a wear-resisting agent and 0.9-1.2 parts of a thermal aging resisting agent. The preparation method comprises the following steps of sequentially adding polyether polyol, toluene diisocynate, polyethylene glycol, the ultraviolet light absorber, the wear-resisting agent and the thermal aging resisting agent into a reactor and sufficiently mixing; and feeding the mixed material into a twin-screw extruder from a main feeding opening of the extruder and performing water cooling, air drying and extrusion pelleting, wherein the temperature is controlled to be 220-280 DEG C and the rotating speed of screws is controlled to be 300-400RPM in the whole pelleting process. The wear-resisting anti-aging polyurethane plastic has excellent wear-resisting property and thermal aging resisting property and is beneficial to greatly prolonging the service life of products.
Description
Technical field
The present invention relates to polymeric material field, be specifically related to a kind of wear-resisting anti-aging urethane plastic and preparation method thereof.
Background technology
Usual plastic material makes a kind of material of good performance, because plastics have the advantages such as light weight, not corrosion, good insulating, and plastic working is easy, and finish size is stable and the damp degree in pass, surface is good, easy application, painted, all need to use plastics in the middle of the production of a lot of product.Such as, people will use electronic product every day, and making and the protection of electronic product be unable to do without plastics, and plastics as the surface decoration of electronic product, can bring abundant vision and sensory effects to electronic product.But; some plastics is to good not using of protection electronic product, and concrete is just embodied in because plastics reach good wear resistance and resistance to deterioration, and the product making it manufacture itself is easy to wear; comparatively fast aging, thus greatly have influence on the work-ing life of electronic product.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind ofly has urethane plastic of excellent wear resisting property and ageing resistance and preparation method thereof simultaneously.
Present invention employs following technical scheme to reach foregoing invention object: a kind of wear-resisting anti-aging urethane plastic, being made up of the raw material of following weight part: polyether glycol 100 parts; Tolylene diisocyanate 10 ~ 30 parts; Polyoxyethylene glycol 10 ~ 20 parts; UV light absorber 2 ~ 5 parts; Anti-wear agent 4 ~ 8 parts; Resistant to thermal aging agent 0.9 ~ 1.2 part.
In order to obtain better invention effect, further setting is done to the present invention: described UV light absorber is one or both the composition of UV light absorber UV-9, UV light absorber UV-327.All can be good at filtering the uv-radiation to plastics by being provided with UV light absorber UV-9 or UV light absorber UV-327, to keep the stability of plastics self-molecules present chain, contributing to the anti-aging effect of self.
The further setting of the present invention: described anti-wear agent is the composition of graphite and tetrafluoroethylene, the proportioning of described graphite and tetrafluoroethylene is 1: 1.By adding graphite and tetrafluoroethylene as the complex abrasion-proof agent making urethane plastic simultaneously, greatly can increase the wear resisting property of plastics, its wear rate is reduced greatly, to increase its work-ing life.
The further setting of the present invention, described resistant to thermal aging agent is the composition of antioxidant 1010 and irgasfos 168, and the proportioning of described antioxidant 1010 and irgasfos 168 is 1: 2.By antioxidant 1010 and irgasfos 168 mixing can be increased the resistance to heat aging of plastics greatly as resistant to thermal aging agent by above-mentioned weight, the related products making it manufacture not easily aged deterioration in life-time service situation.
The invention still further relates to the preparation method of a kind of wear-resisting anti-aging urethane plastic described above, its step prepared is: first weight part as requested takes each component; Then polyether glycol good for standard, tolylene diisocyanate, polyoxyethylene glycol are joined in reactor, 1-2 hour is stirred at 55-80 DEG C, then corresponding UV light absorber, anti-wear agent and resistant to thermal aging agent are joined in reactor, stir at 50-65 DEG C and fully mix for 0.5-1 hour; Finally insert in forcing machine by the material mixed by the main opening for feed of twin screw extruder, through water-cooled, air-dry, extruding pelletization, the temperature in its whole granulation process should control at 220-280 DEG C, and screw speed controls at 300 ~ 400RPM.
Beneficial effect of the present invention is: the present invention by adding graphite and tetrafluoroethylene to form complex abrasion-proof agent in main raw material, greatly can increase the wear resisting property of plastics, its wear rate is reduced greatly, and mix the resistance to heat aging that greatly can increase plastics as resistant to thermal aging agent by interpolation antioxidant 1010 and irgasfos 168, and can work in coordination with anti-aging by uv-absorbing agent, the product making it manufacture not easily aged deterioration in life-time service situation, favourablely increases the service life.
Embodiment
Be explained in detail below in conjunction with multiple embodiment of the present invention, can be easier to make advantages and features of the invention be those skilled in the art will recognize that thus defining of more clear and definite is made to protection scope of the present invention.
Embodiment 1
A kind of wear-resisting anti-aging urethane plastic, adopts the raw material of following weight: polyether glycol 100 parts; Tolylene diisocyanate 30 parts; Polyoxyethylene glycol 20 parts; UV light absorber UV-9 5 parts.
Corresponding preparation technology: first polyether glycol good for said ratio, tolylene diisocyanate, polyoxyethylene glycol are joined in reactor, stir 1.5 hours at 65 DEG C, then UV light absorber UV-9 is joined in reactor, stir at 55 DEG C and fully mix for 0.5 hour, finally the material mixed is inserted in forcing machine by the main opening for feed of twin screw extruder, through water-cooled, air-dry, extruding pelletization, temperature in its whole granulation process should control at 260 DEG C, and screw speed controls at 350RPM.
Embodiment 2
A kind of wear-resisting anti-aging urethane plastic, adopts the raw material of following weight: polyether glycol 100 parts; Tolylene diisocyanate 30 parts; Polyoxyethylene glycol 20 parts; UV light absorber UV-9 4 parts; 4 parts, graphite; Antioxidant 1010 0.9 part.
Corresponding preparation technology: first polyether glycol good for said ratio, tolylene diisocyanate, polyoxyethylene glycol are joined in reactor, stir 1.5 hours at 65 DEG C, then UV light absorber UV-9, graphite, antioxidant 1010 are joined in reactor successively, stir at 55 DEG C and fully mix for 0.5 hour, finally the material mixed is inserted in forcing machine by the main opening for feed of twin screw extruder, through water-cooled, air-dry, extruding pelletization, temperature in its whole granulation process should control at 260 DEG C, and screw speed controls at 350RPM.
Embodiment 3
A kind of wear-resisting anti-aging urethane plastic, adopts the raw material of following weight: polyether glycol 100 parts; Tolylene diisocyanate 30 parts; Polyoxyethylene glycol 20 parts; UV light absorber UV-327 4 parts; Tetrafluoroethylene 4 parts; Irgasfos 168 0.9 part.
Corresponding preparation technology: first polyether glycol good for said ratio, tolylene diisocyanate, polyoxyethylene glycol are joined in reactor, stir 1.5 hours at 65 DEG C, then UV light absorber UV-327, tetrafluoroethylene, irgasfos 168 are joined in reactor successively, stir at 55 DEG C and fully mix for 0.5 hour, finally the material mixed is inserted in forcing machine by the main opening for feed of twin screw extruder, through water-cooled, air-dry, extruding pelletization, temperature in its whole granulation process should control at 260 DEG C, and screw speed controls at 350RPM.
Embodiment 4
A kind of wear-resisting anti-aging urethane plastic, adopts the raw material of following weight: polyether glycol 100 parts; Tolylene diisocyanate 30 parts; Polyoxyethylene glycol 20 parts; UV light absorber UV-9 2 parts; UV light absorber UV-327 2 parts; 3 parts, graphite; Tetrafluoroethylene 3 parts; Antioxidant 1010 0.4 part; Irgasfos 168 0.8 part.
Corresponding preparation technology: first by polyether glycol that said ratio is good, tolylene diisocyanate, polyoxyethylene glycol joins in reactor, stir 1.5 hours at 65 DEG C, then by UV light absorber UV-9, UV light absorber UV-327, graphite, tetrafluoroethylene, antioxidant 1010, irgasfos 168 joins in reactor successively, stir at 55 DEG C and fully mix for 1 hour, finally the material mixed is inserted in forcing machine by the main opening for feed of twin screw extruder, through water-cooled, air-dry, extruding pelletization, temperature in its whole granulation process should control at 260 DEG C, screw speed controls at 350RPM.
By each urethane plastic obtained in embodiment 1 to embodiment 4 respectively by standard test its relevant wear resisting property and thermal ageing resistant performance, test result is as follows:
| Sample | Rubbing number | Wear rate (%) |
| Embodiment 1 | 200 | 8 |
| Embodiment 2 | 200 | 2.5 |
| Embodiment 3 | 200 | 2.8 |
| Embodiment 4 | 200 | 1.06 |
Upper table is wear-resisting test result: (wear-resisting test is by plastics obtained in each embodiment, be fixed under the same conditions on wear-resistant tester and carry out scraped finish, wearing and tearing quality can be used as the reduced parameter of wear resisting property, and its wearing and tearing quality is less, and wear resisting property is better.)
Upper table is resistant to thermal aging test result: (thermal ageing test is by plastics obtained in each embodiment, put in thermal aging oven and carry out thermal ageing test, condition is: 80 DEG C × 72h, the tensile strength of testing before and after thermal ageing test is contrasted, before and after its experiment, tensile strength difference is less, and thermal ageing resistant performance is better.)
The test result shown by above-mentioned two can be known, embodiment 1 is not owing to being added with any anti-wear agent and resistant to thermal aging agent, the wear resisting property of plastics obtained by it and thermal ageing resistant performance are all poor, embodiment 2 to embodiment 3 is respectively added with a kind of anti-wear agent and a kind of resistant to thermal aging agent, make the wear resisting property of obtained each plastics and thermal ageing resistant performance by certain lifting, and owing to adding graphite and tetrafluoroethylene to form complex abrasion-proof agent simultaneously in embodiment 4, and interpolation antioxidant 1010 and irgasfos 168 mixing is simultaneously as resistant to thermal aging agent, the wear resisting property of obtained plastics and thermal ageing resistant performance are promoted all greatly, be conducive to greatly promoting its work-ing life.
Claims (5)
1. a wear-resisting anti-aging urethane plastic, is characterized in that, this urethane deflector roll is made up of the raw material of following parts by weight: polyether glycol 100 parts; Tolylene diisocyanate 10 ~ 30 parts; Polyoxyethylene glycol 10 ~ 20 parts; UV light absorber 2 ~ 5 parts; Anti-wear agent 4 ~ 8 parts; Resistant to thermal aging agent 0.9 ~ 1.2 part.
2. the wear-resisting anti-aging urethane plastic of one according to claim 1, is characterized in that, described UV light absorber is one or both the composition of UV light absorber UV-9, UV light absorber UV-327.
3. the wear-resisting anti-aging urethane plastic of one according to claim 1, is characterized in that, described anti-wear agent is the composition of graphite and tetrafluoroethylene, and the proportioning of described graphite and tetrafluoroethylene is 1: 1.
4. the wear-resisting anti-aging urethane plastic of one according to claim 1, is characterized in that, described resistant to thermal aging agent is the composition of antioxidant 1010 and irgasfos 168, and the proportioning of described antioxidant 1010 and irgasfos 168 is 1: 2.
5. a preparation method for the wear-resisting anti-aging urethane plastic as described in claim 1-4, is characterized in that, comprise the following steps:
1) weight part as requested takes each component;
2) polyether glycol good for standard, tolylene diisocyanate, polyoxyethylene glycol are joined in reactor, 1-2 hour is stirred at 55-80 DEG C, then corresponding UV light absorber, anti-wear agent and resistant to thermal aging agent are joined in reactor, stir at 50-65 DEG C and fully mix for 0.5-1 hour;
3) then insert in forcing machine by the material mixed by the main opening for feed of twin screw extruder, through water-cooled, air-dry, extruding pelletization, the temperature in its whole granulation process should control at 220-280 DEG C, and screw speed controls at 300 ~ 400RPM.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568707A (en) * | 2015-12-22 | 2016-05-11 | 福建华夏合成革有限公司 | Wear-resistant artificial leather |
| CN109294207A (en) * | 2018-09-28 | 2019-02-01 | 长春云创空间科技有限公司 | Abrasion resistant polyurethane composite material and preparation method |
| CN109621555A (en) * | 2017-05-24 | 2019-04-16 | 苏州益可泰电子材料有限公司 | Plastics chimney filter tube body and preparation method thereof |
| CN109666285A (en) * | 2018-11-30 | 2019-04-23 | 长春安旨科技有限公司 | A kind of wear-resisting high-molecular composite material |
| CN113930072A (en) * | 2021-10-20 | 2022-01-14 | 浙江理工大学 | Pressure sensor material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568707A (en) * | 2015-12-22 | 2016-05-11 | 福建华夏合成革有限公司 | Wear-resistant artificial leather |
| CN105568707B (en) * | 2015-12-22 | 2017-10-27 | 福建华夏合成革有限公司 | A kind of wear-resistant artificial leather |
| CN109621555A (en) * | 2017-05-24 | 2019-04-16 | 苏州益可泰电子材料有限公司 | Plastics chimney filter tube body and preparation method thereof |
| CN109294207A (en) * | 2018-09-28 | 2019-02-01 | 长春云创空间科技有限公司 | Abrasion resistant polyurethane composite material and preparation method |
| CN109666285A (en) * | 2018-11-30 | 2019-04-23 | 长春安旨科技有限公司 | A kind of wear-resisting high-molecular composite material |
| CN113930072A (en) * | 2021-10-20 | 2022-01-14 | 浙江理工大学 | Pressure sensor material |
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Application publication date: 20150211 |