CN104910469A - Dicumyl peroxide pre-dispersion rubber master batch particles and preparation method thereof - Google Patents
Dicumyl peroxide pre-dispersion rubber master batch particles and preparation method thereof Download PDFInfo
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- CN104910469A CN104910469A CN201510306981.7A CN201510306981A CN104910469A CN 104910469 A CN104910469 A CN 104910469A CN 201510306981 A CN201510306981 A CN 201510306981A CN 104910469 A CN104910469 A CN 104910469A
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Abstract
The invention discloses dicumyl peroxide pre-dispersion rubber master batch particles. The rubber master batch particles comprise the following components in parts by weight: 30-60 parts of dicumyl peroxide, 20-70 parts of a rubber carrier, 5-30 parts of an inorganic filler and 3-9 parts of processing agents. The invention also discloses a method for preparing the dicumyl peroxide pre-dispersion rubber master batch particles. The method comprises the following steps: preheating an internal mixer to the temperature of 45-60 DEG C, internally mixing the raw materials according to the weight part requirement, uniformly internally mixing, extruding and granulating. The rubber master batch particles prepared by the method disclosed by the invention are easy to prepare and mix and are stable in properties under normal storage conditions, and the active ingredients are not separated out; and moreover, the mixture is high in liquidity, the rubber master batch particles are easy to absorb and uniform to disperse in various rubber, the loss caused by liquid drops formed by melting the dicumyl peroxide during direct mixing is effectively avoided, and the maximum activity of the active ingredient dicumyl peroxide is guaranteed.
Description
Technical field
The present invention relates to rubber ingredients and preparing technical field thereof, specifically pre-dispersed masterbatch particles of a kind of dicumyl peroxide and preparation method thereof.
Background technology
DCP, i.e. dicumyl peroxide, dissolve in benzene, isopropyl benzene, ether, is slightly soluble in cold ethanol, is not dissolved in water, is white clear diamond crystal.DCP is mainly used as the initiator of natural rubber, elastomeric vulcanizing agent and polyreaction, also can be used as polyvinyl resin linking agent.
Traditional rubber ingredients are mostly powdery chemical, small part auxiliary agent is also had to be liquid state, solid state, although great benefit can be brought for rubber item and processing thereof, but also come with some shortcomings: (1) is compared with pre-dispersed masterbatch particles, the consistency of conventional rubber auxiliary agent and rubber is poor, more difficultly evenly spreads in rubber; (2) in order to make conventional rubber auxiliary agent evenly spread in rubber, in actually operating, majority is realized by prolongation mixing time, raising melting temperature, thus is brought more energy waste.
Pre-dispersed masterbatch particles is the class new type rubber processing aid developed by " green chemical industry " new ideas, is by specifically mixing, disperseing and auxiliary agent to be dispersed in rubber and to form rubber ingredients master batch product by granulation process in advance the rubber of the auxiliary agent of high consumption and low consumption and a small amount of dispersion agent and processing aid etc.Pre-dispersed type rubber ingredients master batch is adopted to replace ordinary powder, liquid or solid peroxide rubber processing aids, can improve the dispersiveness of auxiliary agent, improve the quality of products, reduce melting temperature, be conducive to energy-conservation, convenient storage and automatic gauge etc., be the developing direction in rubber ingredients future.Therefore rubber ingredients are prepared into masterbatch particles to adapting to Rubber Chemicals Industries trend, advancing the cleanly production of China's Rubber Chemicals Industries to have important strategic importance and necessity.
Be solid under DCP normal temperature, can melt when mixing and produce drop thus the loss causing active ingredient.For the problem of dicumyl peroxide in mixing, need to research and develop corresponding technology and superoxide DCP is prepared into pre-dispersed masterbatch particles.
Summary of the invention
Technical problem to be solved by this invention is: for the deficiencies in the prior art, pre-dispersed masterbatch particles of a kind of dicumyl peroxide and preparation method thereof is provided, the masterbatch particles that the present invention obtains is easy to mixing ingredient, stable in properties under normal storage conditions, and activeconstituents can not be separated out; Compound good fluidity, in various sizing material, material feeding easily and be uniformly dispersed, efficiently avoid dicumyl peroxide direct mixing time fusing form the loss that drop causes, ensure that the optimum activity of active principle dicumyl peroxide.
The present invention solves the problems of the technologies described above adopted technical scheme: the pre-dispersed masterbatch particles of dicumyl peroxide, count by weight, consisting of of this masterbatch particles: dicumyl peroxide 30 ~ 60 parts, rubber carrier 20 ~ 70 parts, mineral filler 5 ~ 30 parts, processing aid 3 ~ 9 parts.
Described rubber carrier is at least one in terpolymer EP rubber, ethylene propylene rubber, cis-1,4-polybutadiene rubber, chloroprene rubber, paracril and styrene-butadiene rubber(SBR).
Described mineral filler is at least one in calcium carbonate, silicon-dioxide and clay.
Described processing aid is at least one in stearic acid, talcum powder and paraffin.
The preparation method of the pre-dispersed masterbatch particles of above-mentioned dicumyl peroxide, comprises the following steps:
(1) take according to proportion speed and prepare each raw material needed for masterbatch particles;
(2) rubber carrier is put in Banbury mixer by proportioning, temperature be 45 ~ 60 DEG C, rotating speed mixing 3 ~ 8 min under being the condition of 20 ~ 45 r/min;
(3) dicumyl peroxide, mineral filler and processing aid are put in the Banbury mixer of step (2), temperature be 45 ~ 60 DEG C, rotating speed continues mixing 5 ~ 10 min under being the condition of 20 ~ 45 r/min, obtains sizing material;
(4) by mixing for step (3) rear gained sizing material feeding to forcing machine, barrel temperature be 20 ~ 45 DEG C, screw speed extrudes under being the condition of 15 ~ 40 r/min, granulation, namely obtains the pre-dispersed masterbatch particles of dicumyl peroxide.
Compared with prior art, the invention has the advantages that: (1) the present invention prepares masterbatch particles by being distributed in rubber carrier in advance by dicumyl peroxide, efficiently avoid dicumyl peroxide direct mixing time fusing form the loss that causes of drop, ensure that the optimum activity of active principle dicumyl peroxide; (2) the pre-dispersed masterbatch particles of dicumyl peroxide stable in properties under normal storage condition of preparing of the inventive method, activeconstituents can not be separated out; Adhesion under room temperature, makes batching convenient, accurate, reduces batching deviation; (3) dicumyl peroxide contains active peroxy-radical because of it, react as exposed easy and other materials in atmosphere, belong to hazardous substance, but after making pre-dispersed masterbatch particles by the inventive method, dicumyl peroxide is covered by rubber carrier, can be effectively isolated with external environment, convenient transport and use.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Consisting of of the pre-dispersed masterbatch particles of dicumyl peroxide of embodiment one: dicumyl peroxide 45 parts, terpolymer EP rubber 25 parts, 12 parts, calcium carbonate, silica 15 parts, stearic acid 3 parts, the preparation method of this masterbatch particles, comprises the following steps:
(1) take according to proportion speed and prepare each raw material needed for masterbatch particles;
(2) rubber carrier is put in Banbury mixer by proportioning, temperature be 50 DEG C, rotating speed mixing 8 min under being the condition of 25 r/min;
(3) dicumyl peroxide, mineral filler and processing aid are put in the Banbury mixer of step (2), temperature be 50 DEG C, rotating speed continues mixing 8 min under being the condition of 25 r/min, obtains sizing material;
(4) by mixing for step (3) rear gained sizing material feeding to forcing machine, barrel temperature be 35 DEG C, screw speed extrudes under being the condition of 30 r/min, granulation, must be the pre-dispersed masterbatch particles of oxidation diisopropylbenzene(DIPB) of embodiment one.
After testing, the density of the pre-dispersed masterbatch particles of oxidation diisopropylbenzene(DIPB) of embodiment one is 1.05 g/cm
3, active o content is 2.61 %, and dispersed grade is 9 grades, and Mooney viscosity is 15.84 Nm.
Consisting of of the pre-dispersed masterbatch particles of dicumyl peroxide of embodiment two: dicumyl peroxide 40 parts, ethylene propylene rubber 35 parts, 15 parts, calcium carbonate, silicon-dioxide 5 parts, stearic acid 5 parts, the preparation method of this masterbatch particles, comprises the following steps:
(1) take according to proportion speed and prepare each raw material needed for masterbatch particles;
(2) rubber carrier is put in Banbury mixer by proportioning, temperature be 55 DEG C, rotating speed mixing 5 min under being the condition of 25 r/min;
(3) dicumyl peroxide, mineral filler and processing aid are put in the Banbury mixer of step (2), temperature be 55 DEG C, rotating speed continues mixing 7 min under being the condition of 25 r/min, obtains sizing material;
(4) by mixing for step (3) rear gained sizing material feeding to forcing machine, barrel temperature be 40 DEG C, screw speed extrudes under being the condition of 20 r/min, granulation, must be the pre-dispersed masterbatch particles of oxidation diisopropylbenzene(DIPB) of embodiment two.
After testing, the density of the pre-dispersed masterbatch particles of oxidation diisopropylbenzene(DIPB) of embodiment two is 1.09 g/cm
3, active o content is 2.32 %, and dispersed grade is 8 grades, and Mooney viscosity is 12.93 Nm.
Consisting of of the pre-dispersed masterbatch particles of dicumyl peroxide of embodiment three: dicumyl peroxide 45 parts, terpolymer EP rubber 20 parts, ethylene propylene rubber 15 parts, 8 parts, calcium carbonate, clay 6 parts, 6 parts, paraffin, the preparation method of this masterbatch particles, comprises the following steps:
(1) take according to proportion speed and prepare each raw material needed for masterbatch particles;
(2) rubber carrier is put in Banbury mixer by proportioning, temperature be 50 DEG C, rotating speed mixing 5 min under being the condition of 35 r/min;
(3) dicumyl peroxide, mineral filler and processing aid are put in the Banbury mixer of step (2), temperature be 50 DEG C, rotating speed continues mixing 5 min under being the condition of 35 r/min, obtains sizing material;
(4) by mixing for step (3) rear gained sizing material feeding to forcing machine, barrel temperature be 35 DEG C, screw speed extrudes under being the condition of 25 r/min, granulation, must be the pre-dispersed masterbatch particles of oxidation diisopropylbenzene(DIPB) of embodiment three.
After testing, the density of the pre-dispersed masterbatch particles of oxidation diisopropylbenzene(DIPB) of embodiment three is 1.08 g/cm
3, active o content is 2.59 %, and dispersed grade is 8 grades, and Mooney viscosity is 14.95 Nm.
Consisting of of the pre-dispersed masterbatch particles of dicumyl peroxide of embodiment four: dicumyl peroxide 50 parts, cis-1,4-polybutadiene rubber 35 parts, silicon-dioxide 5 parts, clay 5 parts, 5 parts, paraffin, the preparation method of this masterbatch particles, comprises the following steps:
(1) take according to proportion speed and prepare each raw material needed for masterbatch particles;
(2) rubber carrier is put in Banbury mixer by proportioning, temperature be 50 DEG C, rotating speed mixing 5 min under being the condition of 40 r/min;
(3) dicumyl peroxide, mineral filler and processing aid are put in the Banbury mixer of step (2), temperature be 50 DEG C, rotating speed continues mixing 5 min under being the condition of 40 r/min, obtains sizing material;
(4) by mixing for step (3) rear gained sizing material feeding to forcing machine, barrel temperature be 30 DEG C, screw speed extrudes under being the condition of 35 r/min, granulation, must be the pre-dispersed masterbatch particles of oxidation diisopropylbenzene(DIPB) of embodiment four.
After testing, the density of the pre-dispersed masterbatch particles of oxidation diisopropylbenzene(DIPB) of embodiment four is 1.02 g/cm
3, active o content is 2.89 %, and dispersed grade is 9 grades, and Mooney viscosity is 12.23 Nm.
Consisting of of the pre-dispersed masterbatch particles of dicumyl peroxide of embodiment five: dicumyl peroxide 50 parts, chloroprene rubber 30 parts, 5 parts, calcium carbonate, silica 12 parts, stearic acid 3 parts, the preparation method of this masterbatch particles, comprises the following steps:
(1) take according to proportion speed and prepare each raw material needed for masterbatch particles;
(2) rubber carrier is put in Banbury mixer by proportioning, temperature be 55 DEG C, rotating speed mixing 5 min under being the condition of 35 r/min;
(3) dicumyl peroxide, mineral filler and processing aid are put in the Banbury mixer of step (2), temperature be 55 DEG C, rotating speed continues mixing 6 min under being the condition of 25 r/min, obtains sizing material;
(4) by mixing for step (3) rear gained sizing material feeding to forcing machine, barrel temperature be 40 DEG C, screw speed extrudes under being the condition of 25 r/min, granulation, must be the pre-dispersed masterbatch particles of oxidation diisopropylbenzene(DIPB) of embodiment five.
After testing, the density of the pre-dispersed masterbatch particles of oxidation diisopropylbenzene(DIPB) of embodiment five is 1.07 g/cm
3, active o content is 2.85 %, and dispersed grade is 8 grades, and Mooney viscosity is 16.52 Nm.
Claims (5)
1. the pre-dispersed masterbatch particles of dicumyl peroxide, is characterized in that, count by weight, consisting of of this masterbatch particles: dicumyl peroxide 30 ~ 60 parts, rubber carrier 20 ~ 70 parts, mineral filler 5 ~ 30 parts, processing aid 3 ~ 9 parts.
2. the pre-dispersed masterbatch particles of dicumyl peroxide according to claim 1, is characterized in that, described rubber carrier is at least one in terpolymer EP rubber, ethylene propylene rubber, cis-1,4-polybutadiene rubber, chloroprene rubber, paracril and styrene-butadiene rubber(SBR).
3. the pre-dispersed masterbatch particles of dicumyl peroxide according to claim 1, is characterized in that, described mineral filler is at least one in calcium carbonate, silicon-dioxide and clay.
4. the pre-dispersed masterbatch particles of dicumyl peroxide according to claim 1, is characterized in that, described processing aid is at least one in stearic acid, talcum powder and paraffin.
5. the preparation method of the pre-dispersed masterbatch particles of the dicumyl peroxide according to any one of Claims 1 to 4, is characterized in that, comprise the following steps:
(1) take according to proportion speed and prepare each raw material needed for masterbatch particles;
(2) rubber carrier is put in Banbury mixer by proportioning, temperature be 45 ~ 60 DEG C, rotating speed mixing 3 ~ 8 min under being the condition of 20 ~ 45 r/min;
(3) dicumyl peroxide, mineral filler and processing aid are put in the Banbury mixer of step (2), temperature be 45 ~ 60 DEG C, rotating speed continues mixing 5 ~ 10 min under being the condition of 20 ~ 45 r/min, obtains sizing material;
(4) by mixing for step (3) rear gained sizing material feeding to forcing machine, barrel temperature be 20 ~ 45 DEG C, screw speed extrudes under being the condition of 15 ~ 40 r/min, granulation, namely obtains the pre-dispersed masterbatch particles of dicumyl peroxide.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584700A (en) * | 2015-10-20 | 2017-04-26 | 中国石油化工集团公司 | Preparation method of solid organic peroxide master batch, and use of rolling granulator in preparation of solid organic peroxide master batch |
| CN109608775A (en) * | 2018-11-15 | 2019-04-12 | 中山市涵源达橡胶科技有限公司 | A kind of pre-dispersed masterbatch particles of rubber peroxide vulcanizing agent and preparation method thereof |
| CN115232375A (en) * | 2022-09-22 | 2022-10-25 | 广东粤港澳大湾区黄埔材料研究院 | Syndiotactic 1, 2-polybutadiene resin and butadiene rubber modified reinforcing material and preparation method thereof |
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2015
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584700A (en) * | 2015-10-20 | 2017-04-26 | 中国石油化工集团公司 | Preparation method of solid organic peroxide master batch, and use of rolling granulator in preparation of solid organic peroxide master batch |
| CN106584700B (en) * | 2015-10-20 | 2020-01-07 | 中国石油化工集团公司 | Preparation method of solid organic peroxide master batch and application of roll-type granulator in preparation of solid organic peroxide master batch |
| CN109608775A (en) * | 2018-11-15 | 2019-04-12 | 中山市涵源达橡胶科技有限公司 | A kind of pre-dispersed masterbatch particles of rubber peroxide vulcanizing agent and preparation method thereof |
| CN115232375A (en) * | 2022-09-22 | 2022-10-25 | 广东粤港澳大湾区黄埔材料研究院 | Syndiotactic 1, 2-polybutadiene resin and butadiene rubber modified reinforcing material and preparation method thereof |
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Address after: 315000 Zhejiang Province, Ningbo Jiangbei District Haichuan Road 168 Lane No. 1 Applicant after: Ningbo acme New Material Co. Ltd. Address before: Jiangbei District Hongtang street small Lang 315000 Zhejiang city of Ningbo Province Applicant before: Ningbo Actmix Polymer Co., Ltd. |
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Application publication date: 20150916 |