CN104086803A - Rubber anti-aging agent - Google Patents

Rubber anti-aging agent Download PDF

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Publication number
CN104086803A
CN104086803A CN201410326514.6A CN201410326514A CN104086803A CN 104086803 A CN104086803 A CN 104086803A CN 201410326514 A CN201410326514 A CN 201410326514A CN 104086803 A CN104086803 A CN 104086803A
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CN
China
Prior art keywords
terephthalic acid
mass ratio
rubber anti
metal salt
aging agent
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Granted
Application number
CN201410326514.6A
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Chinese (zh)
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CN104086803B (en
Inventor
丁玉兰
方春平
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KOMET NEW MATERIALS CO., LTD.
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CHANGZHOU WUZHOU CHEMICAL Co Ltd
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Priority to CN201410326514.6A priority Critical patent/CN104086803B/en
Publication of CN104086803A publication Critical patent/CN104086803A/en
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Publication of CN104086803B publication Critical patent/CN104086803B/en
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Abstract

The invention discloses a rubber anti-aging agent which is particularly prepared through the following steps: drying terephthalic acid metal salt at the mass percent of 20%-50% at 100-120 DEG C for 0.5-1 hour; adding a silane coupling agent at the mass percent of 15%-35% to the terephthalic acid metal salt in a nitrogen environment, sufficiently and uniformly mixing, standing, and activating for 0.5-1 hour; heating an anti-aging agent A at the mass percent of 30%-60% into a melting state, adding an completely activated mixture, and sufficiently and uniformly mixing. Compared with the prior art, the rubber anti-aging agent disclosed by the invention has the advantages of toxicity reduction, low impurity content and low mobility; a preparation process of the rubber anti-aging agent is simple and low in price, the cost can be reduced and the product quality and the economic benefit can be improved.

Description

A kind of rubber anti-ageing agent
Technical field
The present invention relates to a kind of rubber protective agent.
Background technology
Rubber (comprising the macromolecular materials such as plastics) aging, mainly refer to that rubber item is in storage or use procedure, owing to being subject to the impact of the extraneous factors such as heat, oxygen, light, mechanical stress, ozone, harmful metal ion, make it that physics or chemical transformation occur, make rubber performance become bad, and lose gradually the phenomenon of use value.Rubber aging except the molecular structure that is subject to itself affects, being mainly subject to its Working environment is the impact of external factor.These external factor can be divided into physical factor, chemical factor and biotic factor three types, and each type is comprising a lot of different factors.
Elastomeric material belongs to strategic materials, occupies critical role in national defense industry, and various Model engineerings nearly all be unable to do without rubber product, and especially the application on modern opportunity of combat, naval vessels, rocket etc. is too numerous to enumerate.Quality be military project this, the quality of its quality product, life-span length, count for much, the quality of rubber product is like this equally, but the catabiosis of elastomeric material seriously hinders or limited its application.While adding anti-aging agent in rubber, just can significantly delay the ager process of rubber for this reason, greatly extend the work-ing life of rubber.
Rubber anti-ageing agent A is an old brand amines antioxidants that just starts production application the thirties in 20th century.Because it is to oxygen, heat with bend rich cause aging and have a barrier propterty, also more outstanding to poisonous metal barrier propterty, and cheap, therefore in rubber industry, consumption is very large.But it exists toxicity, and package stability is poor, be exposed in air and daylight under will become grey black from white.
Object of the present invention will provide a kind of modified rubber protective agent A exactly, and to reduce its toxicity, mobility is effectively reduced.
Summary of the invention
Object of the present invention is exactly the modified rubber protective agent A that a kind of low toxicity, low migration will be provided.
The technical scheme that realizes the object of the invention is:
A kind of rubber anti-ageing agent, its feature with: be 20%~50% terephthaldehyde's acid metal salt dry 0.5~1h at 100~120 DEG C by mass ratio, under nitrogen environment, the silane coupling agent that is 15%~35% by mass ratio adds in terephthaldehyde's acid metal salt, fully mixes, and stops activation 0.5~1h, the antioxidant A that is 30%~60% by mass ratio is heated to molten, add the mixture having activated, fully mix, obtain gained protective agent of the present invention.
As preferably, described terephthaldehyde's acid metal salt is one or more in terephthalic acid calcium, terephthalic acid magnesium, terephthalic acid zinc, potassium terephthalate, para-phthalic sodium, terephthalic acid barium, terephthalic acid aluminium.
As preferably, described two-one or more in (the silica-based propyl group of γ-triethoxy) tetrasulfide (Si69), two (the silica-based propyl group of triethoxy) disulphide (Si75), gamma-mercaptopropyltriethoxysilane (KH-580), γ-aminopropyl triethoxysilane (KH-550), γ-(2,3-epoxy the third oxygen) propyl trimethoxy silicane (KH-560).
The rubber anti-ageing agent of gained of the present invention is compared with traditional protective agent A, and its toxicity reduces, and foreign matter content is low, and mobility is low.And its preparation technology is simple, low price, can reduce costs, and improves the quality of products and economic benefit.The present invention can effectively reduce the environmental pollution that anti-aging agent migration produces, good dispersity in elastomeric material, and practical function is high.
Embodiment
Embodiment 1
Under normal temperature condition, be 40% terephthalic acid calcium dry 0.5h at 120 DEG C by mass ratio, under nitrogen environment, the silane coupling agent Si69 that is 20% by mass ratio adds in terephthalic acid calcium, fully mixes, and stops activation 0.5h, the antioxidant A that is 40% by mass ratio is heated to molten, add the mixture having activated, fully mix, obtain No. 1 protective agent of gained of the present invention.
Embodiment 2
Be 20% terephthalic acid magnesium dry 1h at 100 DEG C by mass ratio, under nitrogen environment, the silane coupling agent Si75 that is 20% by mass ratio adds in terephthalic acid magnesium, fully mix, stop activation 1h, the antideteriorant BHT that is 60% by mass ratio is heated to molten, adds the mixture having activated, fully mix, obtain No. 2 protective agents of gained of the present invention.
Embodiment 3
Be 50% terephthalic acid zinc dry 1h at 110 DEG C by mass ratio, under nitrogen environment, the silane coupling agent KH-580 that is 10% by mass ratio, 10% silane resin acceptor kh-550 add in terephthalic acid zinc, fully mix, stop activation 0.5h, the antideteriorant BHT that is 30% by mass ratio is heated to molten, adds the mixture having activated, fully mix, obtain No. 3 protective agents of gained of the present invention.
Embodiment 4
Be 10% potassium terephthalate, 20% para-phthalic sodium dry 0.5h at 100 DEG C by mass ratio, under nitrogen environment, the silane coupling agent KH-560 that is 10% by mass ratio, 10% silane coupling agent KH-580,15% silane resin acceptor kh-550 add in terephthalic acid mixed metal salt, fully mix, stop activation 1h, the antideteriorant BHT that is 35% by mass ratio is heated to molten, add the mixture having activated, fully mix, obtain No. 4 protective agents of gained of the present invention.
Embodiment 5
Be 20% terephthalic acid barium, 25% terephthalic acid zinc dry 0.5h at 120 DEG C by mass ratio, under nitrogen environment, the silane coupling agent Si69 that is 15% by mass ratio adds in terephthaldehyde's acid metal salt, fully mix, stop activation 1h, the antideteriorant BHT that is 40% by mass ratio is heated to molten, adds the mixture having activated, fully mix, obtain No. 5 protective agents of gained of the present invention.
Embodiment 6
Be 10% terephthalic acid aluminium, 10% terephthalic acid calcium, 10% potassium terephthalate dry 1h at 120 DEG C by mass ratio, under nitrogen environment, the silane coupling agent KH-560 that is 20% by mass ratio adds in terephthaldehyde's acid metal salt, fully mix, stop activation 1h, the antideteriorant BHT that is 50% by mass ratio is heated to molten, adds the mixture having activated, fully mix, obtain No. 6 protective agents of gained of the present invention.
Embodiment 7
NR50 part, NBR50 part, carbon black N33040 part, 3 parts, zinc oxide, 2 parts of stearic acid, 23 parts of extending oils, 2.5 parts, anti-aging agent, 4 parts, paraffin, 0.7 part of accelerant CZ, 2 parts of Sulfurs
By even to NR and NBR blend in two roller mills, 100 DEG C of roller temperature, mixing time 15min, adds all the other Synergist S-421 95s of carbon removal infrablack, after mixing, adds carbon black, and the rubber unvulcanizate obtaining is at 155 DEG C of lower sheetings of vulcanizer, snip, test performance.
Gained protective agent of the present invention compares favourably with traditional antioxidant A in ageing resistance, add the present invention the thermal aging property of protective agent obviously good than former protective agent, illustrate that gained protective agent of the present invention can effectively reduce mobility, later stage anti ageing property is good.
Taking above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this invention technological thought, carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to claim scope.

Claims (3)

1. a rubber anti-ageing agent, it is characterized in that by mass ratio be 20%~50% terephthaldehyde's acid metal salt dry 0.5~1h at 100~120 DEG C, under nitrogen environment, the silane coupling agent that is 15%~35% by mass ratio adds in terephthaldehyde's acid metal salt, fully mixes, and stops activation 0.5~1h, the antioxidant A that is 30%~60% by mass ratio is heated to molten, add the mixture having activated, fully mix, obtain gained anti-aging agent of the present invention.
2. a kind of rubber anti-ageing agent according to claim 1, is characterized in that: described terephthaldehyde's acid metal salt is one or more in terephthalic acid calcium, terephthalic acid magnesium, terephthalic acid zinc, potassium terephthalate, para-phthalic sodium, terephthalic acid barium, terephthalic acid aluminium.
3. a kind of rubber anti-ageing agent according to claim 1, it is characterized in that: described two-one or more in (the silica-based propyl group of γ-triethoxy) tetrasulfide (Si69), two (the silica-based propyl group of triethoxy) disulphide (Si75), gamma-mercaptopropyltriethoxysilane (KH-580), γ-aminopropyl triethoxysilane (KH-550), γ-(2,3-epoxy the third oxygen) propyl trimethoxy silicane (KH-560).
CN201410326514.6A 2014-07-09 2014-07-09 A kind of rubber anti-ageing agent Active CN104086803B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105778155A (en) * 2016-05-12 2016-07-20 上海橡瑞新材料科技有限公司 Anti-aging agent NBC coated with nanomaterial and preparation method of anti-aging agent NBC
CN111171377A (en) * 2020-01-10 2020-05-19 安徽硅宝有机硅新材料有限公司 Silane coupling agent and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102212206A (en) * 2011-04-20 2011-10-12 江苏爱特恩高分子材料有限公司 White carbon black filler and preparation method thereof
CN103030838A (en) * 2013-01-16 2013-04-10 江苏爱特恩高分子材料有限公司 Silane coupling agent and preparation thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102212206A (en) * 2011-04-20 2011-10-12 江苏爱特恩高分子材料有限公司 White carbon black filler and preparation method thereof
CN103030838A (en) * 2013-01-16 2013-04-10 江苏爱特恩高分子材料有限公司 Silane coupling agent and preparation thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105778155A (en) * 2016-05-12 2016-07-20 上海橡瑞新材料科技有限公司 Anti-aging agent NBC coated with nanomaterial and preparation method of anti-aging agent NBC
CN105778155B (en) * 2016-05-12 2019-04-19 上海橡瑞新材料科技有限公司 A kind of antioxidant NBC and preparation method thereof coating nano material
CN111171377A (en) * 2020-01-10 2020-05-19 安徽硅宝有机硅新材料有限公司 Silane coupling agent and preparation method thereof

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Effective date of registration: 20170302

Address after: 224247 Dongtai hi tech Industrial Park, Jiangsu, No. four, No. weft Road, No. 1

Patentee after: Yancheng comett new materials Co. Ltd.

Address before: 213164 block B, building No. 801, Chang Wu Road, Wujin District, Jiangsu, Changzhou, China 1001

Patentee before: Changzhou Wuzhou Chemical Co., Ltd.

CB03 Change of inventor or designer information

Inventor after: Chen Qun

Inventor after: Ding Yulan

Inventor after: Fang Chunping

Inventor before: Ding Yulan

Inventor before: Fang Chunping

CB03 Change of inventor or designer information
CP03 Change of name, title or address

Address after: 224200 No. 9 Weisi Road, Dongtai High-tech Park, Yancheng City, Jiangsu Province

Patentee after: KOMET NEW MATERIALS CO., LTD.

Address before: No. 1 Weisi Road, Dongtai Hi-tech Industrial Park

Patentee before: Yancheng comett new materials Co. Ltd.

CP03 Change of name, title or address