CN1285383A - Thermosol powder containing colophony and lac and process for preparing same - Google Patents
Thermosol powder containing colophony and lac and process for preparing same Download PDFInfo
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- CN1285383A CN1285383A CN 00117420 CN00117420A CN1285383A CN 1285383 A CN1285383 A CN 1285383A CN 00117420 CN00117420 CN 00117420 CN 00117420 A CN00117420 A CN 00117420A CN 1285383 A CN1285383 A CN 1285383A
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- silicone oil
- melt adhesive
- rosin
- hot
- adhesive powder
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Abstract
The composition of hot melt adhesive power containing rosin and shellac includes (parts by weight) 10-50 of rosin, 30-50 of shellac, 3-8 of polymerized rosin and 2-5 of light calcium carbonate whose surface is treated with silicon oil. Its preparation method includes the following steps: treating surface of light calcium carbonate using silicon oil organic solution, placing the pulverized rosin, shellac and polymerized rosin in a mixer, under the condition of stirring adding the above-mentioned light calcium carbonate, continuously stirring for 1 hr, and discharging material so as to obtain the invented hot melt adhesive powder. Said invented hot melt adhesive powder can be slored at normal temp., its behaviour can not be changed, and its application is convenient.
Description
The present invention relates to contain hot-melt adhesive powder and the method for making thereof of rosin and lac, especially as incisory hot-melt adhesive powder and the method for making thereof that contains rosin and lac of accurate magnetite.
Lac is the good natural resin of a class character, is usually used in the priming paint of wood furniture; Also be used as tackiness agent (Wang Mengzhong, Huang Yingchang chief editor, " the adhesive applications handbook of top grade, special purpose, Chemical Industry Press, Beijing, 1987, first version, the 86th page), 1976, India has the people to propose with lac or modified shellac as all kinds of caking agents, but product all is not a powdered form, and [Li Shenggui translates, the Wang Dingxuan school also to be not used in metal cutting, " woodsization science and technology ", No.5:60 (1976)].Rosin also is a class natural resin, and its character is crisp, hard, though certain bonding force is arranged, also be useful on the report (Wang Mengzhong of caking agent, the Huang Yingchang chief editor, " adhesive applications handbook, Chemical Industry Press, Beijing, 1987, first version, the 85th～86 page), but can't be separately occur as bonding material, especially not under intense mechanical cutting, vibration as the report of caking agent.
It is directly evenly to trickle down on the magnetite surface through screen cloth with Powdered that accurate magnetite cutting sticks with glue agent, behind the multilayer build-up, inserts baking oven, treat the hot melt adhesive fusing after, take out, cooling, to be cut.The special-shaped magnetite of a large amount of uses in accurate miniature motor and loudspeaker, it is very high to requirement on machining accuracy to cut this type of magnetite, and common tackiness agent is difficult to reach its harsh requirement.Rosin and lac can be formed can satisfy the tackiness agent that accurate special-shaped magnetite cutting processing requires, but the product that these two kinds of starting material are formed can not exist with powdered form, must pulverize or melt them and could use at the magnetite cleavable site.Though imported product can exist with powdered form, can only store half a year by low temperature (below 10 ℃), otherwise can lose performance, influence is used.
The purpose of this invention is to provide a kind of accurate magnetite cutting that contains rosin and lac and use hot-melt adhesive powder, it not only can make powdered form, and can storage at normal temperature, performance and use are had no adverse effects, can further simplify, handled easily, save the energy, raise the efficiency.
Another object of the present invention provides the method for making of this hot-melt adhesive powder.
The accurate magnetite cutting hot-melt adhesive powder that contains rosin and lac provided by the invention is counted by weight, and its composition comprises:
30～50 parts of rosin,
30～50 parts of lacs,
3～8 parts of polymerized rosines,
Through 2～5 parts of silicone oil surface-treated light calcium carbonates,
Wherein silicone oil accounts for 2～8% of light calcium carbonate weight, is good with 5～8%.
The abietic acid weight content is good with 25～60% in the above-mentioned rosin;
Used silicone oil is advisable between 1～50 PaS with viscosity, especially can be that dimethyl silicone oil (also claims polydimethylsiloxane, Dimethicone).The too high difficulty of then disperseing of silicon oil viscosity.
The method for making of the hot-melt adhesive powder that contains rosin and lac provided by the present invention is as follows: at first light calcium carbonate is carried out surface treatment with silicone oil organic solution, getting then, rosin, lac, the polymerized rosin of separated pulverizing place mixing tank, stir down and add through silicone oil surface-treated light calcium carbonate, continue to stir after one hour, discharging can get the accurate magnetite cutting hot-melt adhesive powder that powdered form contains rosin and lac.
Silicone oil organic solution generally can adopt acetone to make solvent, and the silicone oil weight concentration is 2～8% to be advisable, and is good with 5～6%.
Provided by the invention as the incisory tackiness agent that contains rosin and lac of accurate magnetite, since wherein play the effect of solid dispersion through silicone oil surface-treated light calcium carbonate, therefore can prepare in advance and become powdered form, and can storage at normal temperature, reach 1～2 year storage period, property retention is constant; Simultaneously, the bonding strength of this hot melt adhesive is all greater than 110N/cm
2, than 80～90N/cm of conventional products
2High.This hot melt adhesive is simplified, has been made things convenient for use, has saved the energy, has improved efficient.
The umber of following examples, content are all by weight.
Embodiment 1
Get 100 parts of light calcium carbonates in the taper mixing tank of no dead angle, under whipped state, it is that 5% acetone soln sprays into that 5 parts of dimethyl silicone oils are made into concentration; Under the room temperature, continue to stir one hour, mix guaranteeing.Then, the sealing kettle cover, acetone evaporated is removed in decompression; Until treated lime carbonate fugitive constituent less than 0.1%; Remove vacuum, discharging.Product is through silicone oil surface-treated light calcium carbonate.
Embodiment 2
Get 50 parts of first class rosin, 30 parts of lacs, 4 parts of polymerized rosines, separated pulverizing be to the sieve by φ 0.1mm, in the taper mixing tank of no dead angle, adds 5 parts of the light calcium carbonates handled through silicone oil while stirring, continue to stir after one hour, φ 0.1mm sift out material.The bonding strength 112N/cm of this hot melt adhesive
2With this hot-melt adhesive powder normal temperature storage 1 year, performance index did not have deterioration.
Embodiment 3
Get 40 parts of first class rosin, 50 parts of lacs, 8 parts of polymerized rosines, separated pulverizing be to the sieve by φ 0.1mm, in the taper mixing tank of no dead angle, adds 2 parts of the light calcium carbonates handled through silicone oil while stirring, the continuation stirring is after one hour, φ 0.1mm sift out material.The bonding strength 125N/cm of this hot melt adhesive
2With this hot-melt adhesive powder normal temperature storage 1 year, performance index did not have deterioration.
Embodiment 4
Get 30 parts of first class rosin, 40 parts of lacs, 6 parts of polymerized rosines, separated pulverizing be to the sieve by φ 0.1mm, in the taper mixing tank of no dead angle, adds 4 parts of the light calcium carbonates handled through silicone oil while stirring, the continuation stirring is after one hour, φ 0.1mm sift out material.The bonding strength 116N/cm of this hot melt adhesive
2With this hot-melt adhesive powder normal temperature storage 1 year, performance index did not have deterioration.
Claims (7)
1, hot-melt adhesive powder is used in a kind of accurate magnetite cutting that contains rosin and lac, it is characterized in that counting by weight, and composition comprises:
30～50 parts of rosin,
30～50 parts of lacs,
3～8 parts of polymerized rosines,
Through 2～5 parts of silicone oil surface-treated light calcium carbonates,
Wherein silicone oil accounts for 2～8% of light calcium carbonate weight.
2,, it is characterized in that the abietic acid weight content is 25～60% in the described rosin according to the hot-melt adhesive powder described in the claim 1.
3,, it is characterized in that described silicon oil viscosity is between 1～50PaS according to the hot-melt adhesive powder described in the claim 1.
4,, it is characterized in that described silicone oil is dimethyl silicone oil according to the hot-melt adhesive powder described in claim 1 or 3.
5, the method for making of hot-melt adhesive powder described in a kind of claim 1, it is characterized in that at first light calcium carbonate being carried out surface treatment with silicone oil organic solution, getting then, rosin, lac, the polymerized rosin of separated pulverizing place mixing tank, stir down and add through silicone oil surface-treated light calcium carbonate, continue to stir after one hour, discharging promptly gets described hot-melt adhesive powder.
6, according to the method for making described in the claim 5, it is characterized in that described silicone oil organic solution adopts acetone to make solvent, the silicone oil weight concentration is 2～8%.
7,, it is characterized in that described silicone oil weight concentration is 5～6% according to the method for making described in the claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00117420A CN1092222C (en) | 2000-09-18 | 2000-09-18 | Thermosol powder containing colophony and lac and process for preparing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00117420A CN1092222C (en) | 2000-09-18 | 2000-09-18 | Thermosol powder containing colophony and lac and process for preparing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1285383A true CN1285383A (en) | 2001-02-28 |
| CN1092222C CN1092222C (en) | 2002-10-09 |
Family
ID=4586788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00117420A Expired - Fee Related CN1092222C (en) | 2000-09-18 | 2000-09-18 | Thermosol powder containing colophony and lac and process for preparing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1092222C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233207B (en) * | 2005-08-04 | 2011-05-04 | 艾利丹尼森公司 | Intermediate softening point resin-based hot melt PSAs |
| CN102477281A (en) * | 2010-11-22 | 2012-05-30 | 上海恒耐陶瓷技术有限公司 | Novel high-strength impact-resistant bonding agent |
| CN103450841A (en) * | 2013-08-22 | 2013-12-18 | 和国荣 | Preparation method of lac-based environment-friendly artificial board adhesive |
| CN109096986A (en) * | 2018-07-26 | 2018-12-28 | 昆明理工大学 | A kind of hot-melt adhesive powder and preparation method thereof for discarding refuse lac containing lac |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102960913B (en) * | 2012-12-18 | 2014-11-19 | 金华冠华水晶有限公司 | Making process of artificial crystal diamond adhesive powder |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3283117B2 (en) * | 1993-08-11 | 2002-05-20 | 日本化成株式会社 | adhesive |
| JPH0879842A (en) * | 1994-09-07 | 1996-03-22 | Matsushita Electric Ind Co Ltd | Wireless reproducing device |
-
2000
- 2000-09-18 CN CN00117420A patent/CN1092222C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233207B (en) * | 2005-08-04 | 2011-05-04 | 艾利丹尼森公司 | Intermediate softening point resin-based hot melt PSAs |
| CN102477281A (en) * | 2010-11-22 | 2012-05-30 | 上海恒耐陶瓷技术有限公司 | Novel high-strength impact-resistant bonding agent |
| CN103450841A (en) * | 2013-08-22 | 2013-12-18 | 和国荣 | Preparation method of lac-based environment-friendly artificial board adhesive |
| CN103450841B (en) * | 2013-08-22 | 2015-10-28 | 和国荣 | A kind of lac basic ring protects the preparation method of artificial board adhesive |
| CN109096986A (en) * | 2018-07-26 | 2018-12-28 | 昆明理工大学 | A kind of hot-melt adhesive powder and preparation method thereof for discarding refuse lac containing lac |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1092222C (en) | 2002-10-09 |
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