CN1552759A - Upgrading acrylonitrile-butadiene rubber gloves - Google Patents
Upgrading acrylonitrile-butadiene rubber gloves Download PDFInfo
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- CN1552759A CN1552759A CNA031386253A CN03138625A CN1552759A CN 1552759 A CN1552759 A CN 1552759A CN A031386253 A CNA031386253 A CN A031386253A CN 03138625 A CN03138625 A CN 03138625A CN 1552759 A CN1552759 A CN 1552759A
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Abstract
A modified butadiene acrylonitrile rubber gloves is prepared by adding the carboxymethyl cellulose as thickening agent to the emulsoid mixture of butadiene acrylonitrile rubber. It has the thickness of 0.12-0.15 mm and tension strength of 18-30 MPa.
Description
Technical field
The present invention relates to a kind of acrylonitrile butadiene glove of upgrading.It is that intensifier is added into the gloves that make in the latex mixture of paracril, and its thickness is between 0.120-0.150mm; Tensile strength is between 18-30Mpa; The stress of the relaxation property after 6 minutes is to be lower than 50% of its former stress.Intensifier is to be selected from carboxymethyl cellulose.Have antiwear characteristic that improves gloves and the effect of dressing comfortableness.
Background technology
As everyone knows, it is by the synthetic materials manufacturing that a series of traditional gloves are arranged, synthetic materials comprises: NBR (paracril), PVC (polyvinyl chloride), PU (polyurethane), PE (polyethylene), CR (Polychloroprene, sovprene) etc., be used for replacing the gloves of caoutchouc latex made, and wherein general with NBR (paracril) gloves.
United States Patent (USP) the 5th, 014, reach invention (Reissue) Re.35 again for No. 362, be for No. 616 by Tillotson etc. invent, it discloses a kind of NBR elastomerics gloves, it is characterized in that: gloves waterproof (containing steam), with the sample of gloves thickness between 4-4.5mils, tested according to the ASTMD-412 standard, record its tensile strength (tensilestrength) and be at least about 1500psi.And the Tillotson United States Patent (USP) is invented Re.35 again, when No. 616 thickness was 4.5mils (0.1143mm), its tensile strength was 2200psi (according to the test of ASTMD412 method), and the 5th, 014, No. 362 case does not disclose the thickness of its gloves and the relation between wear-resisting (opposing abrasion) characteristic.
Tradition comprises following method in order to the method that increases the gloves antiwear characteristic:
1, make filamentary material gluing on the layer material of gloves;
2, make most protective layers lamination (lamination) in addition;
3, the prescription of improvement gloves is to increase the thickness of gloves, in order to promote its antiwear characteristic etc.
The major defect of traditional method is: though above-mentioned traditional method has increased the thickness of gloves, but, comfortableness when but reducing its tensile strength or influence wearing gloves especially when the medical operating cover is used to prevent to touch harmful or deleterious pollutent or sharp sharper, influences especially to some extent.
Summary of the invention
The acrylonitrile butadiene glove that the purpose of this invention is to provide a kind of upgrading, by in the latex mixture of paracril, adding the carboxymethyl cellulose intensifier, the tensile strength that makes gloves is 18～30Mpa, the thickness of gloves is between 0.12-0.15mm, the stress of the relaxation property after 6 minutes is to be lower than 50% of former stress, reaches antiwear characteristic that improves gloves and the purpose of dressing comfortableness.
The object of the present invention is achieved like this: a kind of acrylonitrile butadiene glove of upgrading is characterized in that: it is that intensifier is added into the gloves that make in the latex mixture of paracril, and its thickness is between 0.120-0.150mm; Its tensile strength is between 18-30Mpa; The stress of the relaxation property after 6 minutes is to be lower than 50% of its former stress.
This intensifier is to be selected from carboxymethyl cellulose.The centre of the palm thickness of these gloves is between 0.120-0.135mm, and its finger tip thickness is between 0.135-0.150mm.The adding weight of this intensifier is 2% of this paracril.
Further specify below in conjunction with preferred embodiment.
Embodiment
The acrylonitrile butadiene glove of upgrading of the present invention is the gloves that add the intensifier preparation in latex (latex) design of mixture.Be preferably and select carboxymethyl cellulose (Carboxy methyl celluose for use; CMC) as intensifier.
The latex formula of preferred embodiment of the present invention is counted with parts by weight:
A, paracril (NBR): 100 parts,
B, zinc oxide: 1.9 parts,
C, accelerator (accelerating agent): 1.7 parts,
D, sulphur: 0.59 part,
E, antioxidant: 0.45 part,
F, potassium hydroxide: 0.3 part,
G, pigment: 0.189 part,
H, intensifier (CMC): 2 parts.
Certainly, the proportioning of above-mentioned each composition is preferred embodiment of the present invention only, is not unique, can allocate as required, and the variation of its different proportionings all belongs within protection scope of the present invention.
The manufacture method of gloves of the present invention comprises the following steps:
1, according to above-mentioned prescription allotment latex formula agent;
2, the model (form) with gloves floods (dipping) in described latex formula agent;
3, order impregnated in the latex material maturation under suitable maturation temperature (for example: 300) on the rubber cast;
4, glove model is taken off the emgloves of maturation, made gloves product of the present invention.
Its thickness and the physical property (testing method) of being correlated with are as follows:
Tensile strength: 18～30MPa (ASTM-D412),
Unit elongation (Elongation): 550-680% (ASTM-D412),
The thickness at position, the centre of the palm: 0.120～0.135mm (ASTM-D3767),
The thickness of pad of finger: 0.135～0.150mm (ASTM-O3767).
The test data and the prior art United States Patent (USP) of the invention described above product are invented Re35 again, and No. 616 test data is listed in table 1
The test data of table 1 product of the present invention and prior art Re35, No. 616 test data relatively
| Sample | Thickness mm | Ultimate compression strength psi |
| The present invention | ????0.12-0.15 | ????2611-4351 |
| ????Re35,616 | ????0.1016-0.1143 | ????1500-2200 |
By table 1 test data as seen:
1, the thickness of gloves of the present invention is invented Re.35 again than United States Patent (USP) between 0.12～0.15mm, and thickness 0.1016～0.1143mm of No. 616 is much thick.
2, the tensile strength of gloves of the present invention is invented Re.35 up to 2611-4351psi (being 18-30Mpa) again than United States Patent (USP), and No. 616 tensile strength 1500-2200psi is much higher.
The tensile strength of the gloves that the present invention makes and unit elongation 550～680% all meet the regulation of the medical gloves of American Standard of Testing Materials ASTMD 412-92.
When making gloves of the present invention carry out wear-resisting (or abrasion) test, sample of gloves of the present invention is after wear test, its weight in average rate of loss is atomic, and the gloves after will wearing away, the intensity of testing its tensile strength gained reduction again is also minimum, shows that thus product of the present invention has good antiwear characteristic.
Because product of the present invention has excellent tensile strength and preferable thickness, so the NBR gloves that make according to the present invention can prolong its work-ing life, the occasion that is applied to medical operating or other curative activity is especially durable, can prevent to be injured by the sharp instruments that medical treatment is used, also can avoid touching deleterious poisonous substance or pollutent, have preferable superiority than traditional gloves.
The stress of the relaxation property (relaxation property) of NBR gloves of the present invention after 6 minutes is lower than 50% of former stress, so gloves of the present invention are very comfortable, both not too tight, also not too loose in wearing the time spent.
All those skilled in the art do the modification or the change of appropriateness under spirit of the present invention, all belong within protection scope of the present invention.
Claims (4)
1, a kind of acrylonitrile butadiene glove of upgrading is characterized in that: it is that intensifier is added into the gloves that make in the latex mixture of paracril, and its thickness is between 0.120-0.150mm; Its tensile strength is between 18-30Mpa; The stress of the relaxation property after 6 minutes is to be lower than 50% of its former stress.
2, the acrylonitrile butadiene glove of upgrading according to claim 1 is characterized in that: this intensifier is to be selected from carboxymethyl cellulose.
3, the acrylonitrile butadiene glove of upgrading according to claim 1 is characterized in that: the centre of the palm thickness of these gloves is between 0.120-0.135mm, and its finger tip thickness is between 0.135-0.150mm.
4, the acrylonitrile butadiene glove of upgrading according to claim 1 is characterized in that: the adding weight of this intensifier is 2% of this paracril.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03138625 CN1264907C (en) | 2003-05-27 | 2003-05-27 | Upgrading acrylonitrile-butadiene rubber gloves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03138625 CN1264907C (en) | 2003-05-27 | 2003-05-27 | Upgrading acrylonitrile-butadiene rubber gloves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1552759A true CN1552759A (en) | 2004-12-08 |
| CN1264907C CN1264907C (en) | 2006-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03138625 Expired - Fee Related CN1264907C (en) | 2003-05-27 | 2003-05-27 | Upgrading acrylonitrile-butadiene rubber gloves |
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| CN (1) | CN1264907C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107488306A (en) * | 2017-09-10 | 2017-12-19 | 新沂市中诺新材料科技有限公司 | A kind of preparation method of novel corrosion resistant rubber gloves |
| CN112029207A (en) * | 2020-08-05 | 2020-12-04 | 百通达科技（东台）有限公司 | Polyvinyl chloride gloves free of low-molecular solvent and preparation process thereof |
-
2003
- 2003-05-27 CN CN 03138625 patent/CN1264907C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107488306A (en) * | 2017-09-10 | 2017-12-19 | 新沂市中诺新材料科技有限公司 | A kind of preparation method of novel corrosion resistant rubber gloves |
| CN112029207A (en) * | 2020-08-05 | 2020-12-04 | 百通达科技（东台）有限公司 | Polyvinyl chloride gloves free of low-molecular solvent and preparation process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1264907C (en) | 2006-07-19 |
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