CN104310415A - Preparation method of porous calcium silicate particles for friction materials - Google Patents
Preparation method of porous calcium silicate particles for friction materials Download PDFInfo
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- CN104310415A CN104310415A CN201410538582.9A CN201410538582A CN104310415A CN 104310415 A CN104310415 A CN 104310415A CN 201410538582 A CN201410538582 A CN 201410538582A CN 104310415 A CN104310415 A CN 104310415A
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- calcium oxide
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Abstract
The invention relates a preparation method of porous calcium silicate particles for friction materials. The method provided by the invention has the characteristics of being simple in process, convenient to manufacture and relatively low in cost. According to the technical scheme, the preparation method of the porous calcium silicate particles comprises the following steps: 1) inputting silicon dioxide and calcium oxide in a molar ratio of 1.8: 1 into a reaction kettle, then, inputting sodium carbonate which accounts for 15-20% of total weight of silicon dioxide and calcium oxide and polyethylene glycol which accounts for 7-11% of total weight of silicon dioxide and calcium oxide, and then adding water with the curing ratio (weight ratio) of 1: (13-17) and uniformly stirring; and 2) heating to 450-470K and maintaining the temperature for reaction for 5-7 hours, and then heating to 800-900K and maintaining the temperature for reaction for 3-5 hours; and after reaction cooling, taking out the composition from the reaction kettle, washing with water, filtering and drying in an oven at 110-120 DEEG C for later use.
Description
Technical field
The present invention relates to a kind of friction resistance material, be especially used as the preparation method of the porous calcium silicate particle of friction resistance material.
Background technology
Friction resistance material, as the product of modern industry, plays more and more important effect in national economy and people's social life.Friction resistance material industry obtained fast development in recent years, along with the develop rapidly of friction resistance material industry, had simultaneously also occurred a series of new requirement and new problem, embodied a concentrated reflection of as aspects such as security, comfortableness, weather resistance, high temperature resistant, noises.Therefore, how addressing these problems is top priority in current industry.
Summary of the invention
The object of the invention is the deficiency overcoming above-mentioned background technology, provide a kind of preparation method of porous calcium silicate particle, the method provided should have simple, the easy to make and lower-cost feature of technique; The method obtains porous calcium silicate particle should have Higher porosity, stable frictional coefficient and high thermal resistance and easily disperse, also there is the feature of larger bonding strength, to meet high temperature resistant, wear-resistant, corrosion-resistant, the requirement such as high strength and low noise of friction resistance material.
Technical scheme provided by the invention is: a kind of preparation method of porous calcium silicate particle, carries out according to the following steps:
1) the molar ratio input reactor of 1.8:1 pressed by silicon-dioxide and calcium oxide, then drop into silicon-dioxide and the sodium carbonate of 15-20% of calcium oxide gross weight and the polyoxyethylene glycol of the 7-11% of silicon-dioxide and calcium oxide gross weight, the water then adding 1:13-17 curing ratio (part by weight) stirs;
2) be warming up to 450-470K, keep this thermotonus 5-7 hour, after being then warmed up to 800-900K, keep this thermotonus 3-5 hour; After question response completes cooling, take out from reactor synthetics washing, filter, for subsequent use after 110 DEG C ~ 120 DEG C drying in oven.
Described step 1) in churning time be 10 ~ 12 minutes.
The present invention in reactor by the crystal growth technique synthesis of special crystallization and stability contorting, obtain for particulate state, there is unique external aperture, the spherical agglomeration body structure of inner macropore.This particle has open internal structure, and around the shell that is closely made up of needle-like crystal.
The invention has the beneficial effects as follows: the method technique provided is simple, easy to make, so cost of manufacture is lower; The porous calcium silicate particle that the method obtains, there is Higher porosity, stable frictional coefficient and high thermal resistance and easily disperse (see table 1) also has the features such as larger bonding strength (see table 2), high temperature resistant, wear-resistant, corrosion-resistant, the requirement such as high strength and low noise of friction resistance material can be met.And the equal buyable of all raw material obtains, and not only meet environmental requirement, and manufacture easy, cost is lower, has wide market outlook.
Accompanying drawing explanation
Fig. 1 is the porous calcium silicate grain pattern electromicroscopic photograph that the present invention obtains.
Fig. 2 is the section structure electromicroscopic photograph of the porous calcium silicate particle that the present invention obtains.
Fig. 3 is the structure for amplifying electromicroscopic photograph of porous calcium silicate particle section.
Embodiment
Below by way of specific embodiment, technical scheme of the present invention is described further.
Embodiment 1
First a certain amount of calcium oxide and silicon-dioxide is taken by the mol ratio of 1.8:1, then add with the sodium carbonate of silicon-dioxide and calcium oxide mixture total weight amount 15% and the polyoxyethylene glycol that adds by silicon-dioxide and calcium oxide mixture total weight amount 11%, then add in the distilled water of 1:13 curing ratio to be dissolved in reactor and then install kettle cover, stir and make it mix in 12 minutes; Connect heating power supply again and design temperature is 470K on controller, rising to after 470K until temperature keeps thermotonus after 5 hours, to rise to after 900K until temperature keep thermotonus 3 hours by temperature controller being set in 900K, after question response completes grade its cooling, take out from reactor synthetics washing, filter, for subsequent use after 110 DEG C of drying in oven.
Embodiment 2
First a certain amount of calcium oxide and silicon-dioxide is taken by the mol ratio of 1.8:1, then add with the sodium carbonate of silicon-dioxide and calcium oxide mixture total weight amount 17% and the polyoxyethylene glycol that adds by silicon-dioxide and calcium oxide mixture total weight amount 9%, then add in the distilled water of 1:15 curing ratio to be dissolved in reactor and then install kettle cover, stir and make it mix in 11 minutes; Connect heating power supply again and design temperature is 463K on controller, rising to after 463K until temperature keeps thermotonus after 6 hours, to rise to after 863K until temperature keep thermotonus 4 hours by temperature controller being set in 863K, after question response completes grade its cooling, take out from reactor synthetics washing, filter, for subsequent use after 115 DEG C of drying in oven.
Embodiment 3
First a certain amount of calcium oxide and silicon-dioxide is taken by the mol ratio of 1.8:1, then add with the sodium carbonate of silicon-dioxide and calcium oxide mixture total weight amount 20% and the polyoxyethylene glycol that adds by silicon-dioxide and calcium oxide mixture total weight amount 7%, then add in the distilled water of 1:17 curing ratio to be dissolved in reactor and then install kettle cover, stir and make it mix in 10 minutes; Connect heating power supply again and design temperature is 450K on controller, rising to after 450K until temperature keeps thermotonus after 7 hours, to rise to after 900K until temperature keep thermotonus 5 hours by temperature controller being set in 800K, after question response completes grade its cooling, take out from reactor synthetics washing, filter, for subsequent use after 120 DEG C of drying in oven.
The porous calcium silicate particle that above-mentioned working method obtains, friction and wear behavior test result is as follows:
Table 1
The porous calcium silicate particle that aforesaid method obtains, the shearing resistance contrast added in friction resistance material sees the following form:
Table 2
Claims (2)
1. a preparation method for porous calcium silicate particle, carries out according to the following steps:
1) the molar ratio input reactor of 1.8:1 pressed by silicon-dioxide and calcium oxide, then drop into silicon-dioxide and the sodium carbonate of 15-20% of calcium oxide gross weight and the polyoxyethylene glycol of the 7-11% of silicon-dioxide and calcium oxide gross weight, the water then adding 1:13-17 curing ratio stirs;
2) be warming up to 450-470K, keep this thermotonus 5-7 hour, after being then warmed up to 800-900K, keep this thermotonus 3-5 hour; After question response completes cooling, take out from reactor synthetics washing, filter, for subsequent use after 110 DEG C ~ 120 DEG C drying in oven.
2. the preparation method of porous calcium silicate particle according to claim 1, is characterized in that described step 1) in churning time be 10 ~ 12 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410538582.9A CN104310415B (en) | 2014-10-13 | 2014-10-13 | A kind of preparation method of the porous calcium silicate granule of friction resistance material |
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| CN201410538582.9A CN104310415B (en) | 2014-10-13 | 2014-10-13 | A kind of preparation method of the porous calcium silicate granule of friction resistance material |
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| CN104310415A true CN104310415A (en) | 2015-01-28 |
| CN104310415B CN104310415B (en) | 2016-06-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109455725A (en) * | 2018-12-12 | 2019-03-12 | 杭州润福春科技有限公司 | A kind of preparation method of porous silicon colloid Ceramic Composite flexible particle |
| CN109538647A (en) * | 2018-12-12 | 2019-03-29 | 杭州润福春科技有限公司 | A kind of pneumatic clutch frictional resistance block and preparation method thereof |
| CN109592687A (en) * | 2018-12-03 | 2019-04-09 | 南京理工大学 | The method for preparing porous silica silicon materials using TOB |
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| US5750038A (en) * | 1994-01-17 | 1998-05-12 | Japan As Represented By Director General Of Agency Of Industrial Science And Technology | Method for the preparation of acid-resistant calcium silicate |
| CN101804991A (en) * | 2009-02-13 | 2010-08-18 | 隗学礼 | Shell porous silicate, preparation method thereof and friction material containing same |
| CN102259876A (en) * | 2010-05-28 | 2011-11-30 | 延增国 | Preparation method of calcium silicate friction material |
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| US5750038A (en) * | 1994-01-17 | 1998-05-12 | Japan As Represented By Director General Of Agency Of Industrial Science And Technology | Method for the preparation of acid-resistant calcium silicate |
| CN101804991A (en) * | 2009-02-13 | 2010-08-18 | 隗学礼 | Shell porous silicate, preparation method thereof and friction material containing same |
| CN102259876A (en) * | 2010-05-28 | 2011-11-30 | 延增国 | Preparation method of calcium silicate friction material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109592687A (en) * | 2018-12-03 | 2019-04-09 | 南京理工大学 | The method for preparing porous silica silicon materials using TOB |
| CN109592687B (en) * | 2018-12-03 | 2023-06-06 | 南京理工大学 | Method for preparing porous silicon dioxide material by utilizing TOB |
| CN109455725A (en) * | 2018-12-12 | 2019-03-12 | 杭州润福春科技有限公司 | A kind of preparation method of porous silicon colloid Ceramic Composite flexible particle |
| CN109538647A (en) * | 2018-12-12 | 2019-03-29 | 杭州润福春科技有限公司 | A kind of pneumatic clutch frictional resistance block and preparation method thereof |
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| CN104310415B (en) | 2016-06-22 |
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Effective date of registration: 20190125 Address after: 311322 130 Longgang Street, Longgang Town, Linan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou moistening spring science and Technology Co., Ltd. Address before: 311322 130 Longgang Street, Longgang Town, Linan City, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU SANGLA TECHNOLOGY CO., LTD. |
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