CN1266864A - Process for preparing soft mould of natural rubber - Google Patents
Process for preparing soft mould of natural rubber Download PDFInfo
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- CN1266864A CN1266864A CN 99114708 CN99114708A CN1266864A CN 1266864 A CN1266864 A CN 1266864A CN 99114708 CN99114708 CN 99114708 CN 99114708 A CN99114708 A CN 99114708A CN 1266864 A CN1266864 A CN 1266864A
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
A process for preparing soft model of natural rubber includes mixing natural rubber with DM as promoter, TMTD as promoter, zinc oxide, AW as antiageing agent, sulfur, casein, ammonia water, potassium hydroxide and distilled water, stirring, coating original with it, drying and taking it out. Its advantages are simple process, low cost high elasticity, long service life and high tension, tear, antiwear, bending and fatigue resistance.
Description
The present invention relates to a kind of soft mode preparation method, particularly a kind of preparation method who with rubber is raw material to the soft mode of technology body complete copy.
At present, duplicate on the market, the mould of production technique body generally is to adopt plaster mould, glass punching block or cast rubber model,, very easily break though the plaster mould cost is low and reproduction speed is fast, and coarse; Though the glass punching block is smooth, hard, it is comparatively simple to duplicate moulding, and which floor releasing agent is the face bend angle must also must be coated with and can take out mould greater than the replica of 90 degree on replica.Relevant technologies personnel research is made into soft mode with natural rubber for this reason, a kind of " manufacture method for elastic rubber mould " disclosed in patent CN1180609A, it is to add zinc oxide in natural rubber, magnesium oxide, sulphur, accelerant C z and antioxidant d mix together, though this method can overcome above-mentioned deficiency, but cost is still too high, exist yielding in a short time, be easy to be attached thing because of quality is too soft and tear the defective that causes the weak point in work-ing life, and the also necessary drying of this method, sulfuration waits the high temperature treating processes, this certainly will adopt big-and-middle-sized equipment, increased manufacturing cost, also must clean after the moulding with acetone, long processing time, increase working strength of workers, and be not suitable for the soft mode making that cannot stand pyritous plastics or woodwork.
Purpose of the present invention just provides that a kind of cost of manufacture is low, technology is simple, the preparation method of the soft mould of natural rubber of long service life, compression and tensile strength height and inner wall smooth.
The objective of the invention is to realize by such technical scheme, it is with after natural rubber and the complete mixing and stirring of rubber auxiliary, smear equably or be sprayed on the replica, take off after waiting to do, the weight ratio of natural rubber and rubber auxiliary is 6: 1 or 12: 1, and wherein the rubber auxiliary is formulated by following step:
(1) altax, TM monex TD, zinc oxide, antioxidant A W, sulphur and distilled water are mixed, carry out levigate stirring and form first mixture;
(2) casein food grade, ammoniacal liquor and distilled water are stirred and form second mixture;
(3) with potassium hydroxide and distilled water stirring and dissolving and form the 3rd mixture;
(4),, thereby make the rubber auxiliary again with the 3rd mixture mixing and stirring with after first mixture and the second mixture mixing and stirring.
Owing to adopted technique scheme, the present invention to have following advantage:
1. technology is simple, and cost of manufacture is low, need not large and medium-sized equipment, only needs spray gun, small-sized air compressor and paste roller mill etc., and manual operations gets final product;
2. not influenced by temperature, self stability is strong, the soft mode inner wall smooth, promptly flexible have hardness again, have good anti-ly pull apart, characteristics such as stretch-proof, anti tear, abrasion performance, warping strength and antifatigue;
3. do not use releasing agent, guarantee that equally technology replica body is complete, the lines flow smoothly, clean mark, not sticking to mould tool;
4. saved high temperature treating processess such as oven dry, sulfuration, just can make at normal temperatures;
5. owing to do not use releasing agent, therefore the soft mode of making does not need to clean with acetone;
6. to less than the 90 angle goods of spending also reproducible, particularly better to the glass fiber reinforced plastics product effect of tack extra-heavy.
The invention will be further described below in conjunction with embodiment:
The present invention is with after natural rubber and the complete mixing and stirring of rubber auxiliary, smears equably or is sprayed on the replica, take off after waiting to do, the weight ratio of natural rubber and rubber auxiliary is such: at winter, Qiu Liangji, its weight ratio is 6: 1; At spring, Xia Liangji, its weight ratio is 12: 1, and wherein the rubber auxiliary is formulated by following step:
(1) altax, TM monex TD, zinc oxide, antioxidant A W, sulphur and distilled water are mixed, carry out levigate stirring and form first mixture, altax wherein, TM monex TD, zinc oxide, antioxidant A W, sulphur and distilled water are by weight with 2: 2: 3: 2: 2: 12 ratio is mixed.
(2) casein food grade, ammoniacal liquor and distilled water are stirred and form second mixture, casein food grade wherein, ammoniacal liquor and distilled water mix with 2: 1: 20 ratio by weight, the purpose that participates in casein food grade and ammoniacal liquor is to improve the pH value of soft mode, and that stablizes soft mode anti-ly pulls apart, easily peels off superperformance with anti tear.
(3) with potassium hydroxide and distilled water stirring and dissolving and form the 3rd mixture, potassium hydroxide wherein and distilled water mix with 1: 1 ratio by weight.
(4),, thereby make the rubber auxiliary again with the 3rd mixture mixing and stirring with after first mixture and the second mixture mixing and stirring; First mixture, second mixture and the 3rd mixture mix with 115: 20: 8 ratio by weight.
Natural rubber is 10～30 with the pass of evenly smearing or being sprayed on the replica after the rubber auxiliary mixes fully.After smearing or whitewash for one time, treat next time of just smearing or whitewash after slurry is done, and decide the pass of smearing or whitewashing according to the needs of finished product thickness.
Claims (6)
1. the preparation method of a soft mould of natural rubber, it is with after natural rubber and the complete mixing and stirring of rubber auxiliary, smear equably or be sprayed on the replica, take off after waiting to do, the weight ratio of natural rubber and rubber auxiliary is 6: 1 or 12: 1, and wherein the rubber auxiliary is formulated by following step:
(1) altax, TM monex TD, zinc oxide, antioxidant A W, sulphur and distilled water are mixed, carry out levigate stirring and form first mixture;
(2) casein food grade, ammoniacal liquor and distilled water are stirred and form second mixture;
(3) with potassium hydroxide and distilled water stirring and dissolving and form the 3rd mixture;
(4),, thereby make the rubber auxiliary again with the 3rd mixture mixing and stirring with after first mixture and the second mixture mixing and stirring.
2. the preparation method of soft mould of natural rubber as claimed in claim 1, it is characterized in that: the altax in first mixture, TM monex TD, zinc oxide, antioxidant A W, sulphur and distilled water are by weight with 2: 2: 3: 2: 2: 12 ratio is mixed.
3. the preparation method of soft mould of natural rubber as claimed in claim 1, it is characterized in that: the casein food grade in second mixture, ammoniacal liquor and distilled water mix with 2: 1: 20 ratio by weight.
4. the preparation method of soft mould of natural rubber as claimed in claim 1, it is characterized in that: potassium hydroxide in the 3rd mixture and distilled water mix with 1: 1 ratio by weight.
5. the preparation method of soft mould of natural rubber as claimed in claim 1, it is characterized in that: first mixture, second mixture and the 3rd mixture mix with 115: 20: 8 ratio by weight.
6. the preparation method of soft mould of natural rubber as claimed in claim 1 is characterized in that: natural rubber is 10～30 with the pass of evenly smearing or being sprayed on the replica after the rubber auxiliary mixes fully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99114708 CN1266864A (en) | 1999-03-12 | 1999-03-12 | Process for preparing soft mould of natural rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99114708 CN1266864A (en) | 1999-03-12 | 1999-03-12 | Process for preparing soft mould of natural rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1266864A true CN1266864A (en) | 2000-09-20 |
Family
ID=5277757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99114708 Pending CN1266864A (en) | 1999-03-12 | 1999-03-12 | Process for preparing soft mould of natural rubber |
Country Status (1)
| Country | Link |
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| CN (1) | CN1266864A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104844851A (en) * | 2015-05-14 | 2015-08-19 | 中国化工株洲橡胶研究设计院有限公司 | Sizing material for producing hard alloy blank soft mode and soft mode production method |
-
1999
- 1999-03-12 CN CN 99114708 patent/CN1266864A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104844851A (en) * | 2015-05-14 | 2015-08-19 | 中国化工株洲橡胶研究设计院有限公司 | Sizing material for producing hard alloy blank soft mode and soft mode production method |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |