CN102276923A - Foamed polypropylene material - Google Patents
Foamed polypropylene material Download PDFInfo
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- CN102276923A CN102276923A CN2011102505204A CN201110250520A CN102276923A CN 102276923 A CN102276923 A CN 102276923A CN 2011102505204 A CN2011102505204 A CN 2011102505204A CN 201110250520 A CN201110250520 A CN 201110250520A CN 102276923 A CN102276923 A CN 102276923A
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Abstract
The invention provides a foamed polypropylene (PP) material which is prepared from the following components in parts by weight: 80-95 parts of PP:T30S, 5-20 parts of polyethylene (PE), 0.8-1.5 parts of foaming agent, 0.5-1 part of foaming aid, 0.2-0.8 part of cross-linking agent, 0.2-0.5 part of nucleating agent and 0.5-1.2 parts of assistant cross-linking agent. In the foamed PP material provided by the invention, the cost can be lowered because of the addition of the PE, the consumption of the PP is greatly reduced at the same volume of a syringe core rod, and the foamed PP material has the advantages of easy shaping, uniform product foaming, good mechanical strength and the like and is favorable for lowering the cost and protecting the environment.
Description
Technical field
The present invention relates to the material modified field of medical PP, the PP that is specifically related to a kind of syringe core rod is material modified.
Background technology
China is disposable syringe big producing country, has 13,000,000,000 approximately in 1 year, and how annual a large amount of polypropylene (PP) starting material that consume under the more and more nervous situation of petroleum resources, save the use to material at present, become numerous producers urgent problem.And the micropore foamed polymer density of material is than the preceding a kind of novel thermoplastic macromolecule material that reduces 5 %～98 % of foaming.Have that density is low, excellent properties such as high impulse strength, specific tenacity, fatigue resistance and thermostability.The core bar of syringe does not contact soup, and is lower to the requirement of PP, but the present core bar of syringe on the market all adopts plain polypropylene injection molding, all does burning disposal as medical waste after the use.Not only consume a large amount of polypropylene starting material, also environment has been caused certain pollution.
Summary of the invention
In order to save polyacrylic usage quantity as far as possible, and do not reduce the physical strength of syringe core rod, the purpose of this utility model is to provide a kind of light weight, specific tenacity height, cost low foaming polypropylene material that is applied to syringe core rod.
In order to achieve the above object, the present invention has adopted following technical scheme:
A kind of expanded polypropylene material, count this material by weight ratio and make by following composition:
PP:T30S 80-95 part
PE:5-20 part
Whipping agent: 0.8-1.5 part
Frothing aid: 0.5-1 part
Linking agent: 0.2-0.8 part
Nucleator: 0.2-0.5 part
Auxiliary crosslinking agent: 0.5-1.2 part
Above-mentioned whipping agent is that particle diameter is the azo diformazan phthalein amine of 4 μ m, and this heat release type whipping agent has that gas forming amount is big, low price, good dispersity, resolvent are nontoxic, odorless, advantage such as do not pollute.
Above-mentioned frothing aid is a zinc oxide.
Above-mentioned linking agent is a dicumyl peroxide.The softening temperature and the melting temperature of polypropylene (PP) are more approaching, and after it reached melt temperature, melt viscosity sharply descended, and cause polypropylene expanded temperature range less.The melt strength that the present invention improves PP by little crosslinked (linking agent of employing is a dicumyl peroxide) improves the PP foam performance.
Above-mentioned nucleator is that granularity is 5000 purpose talcum powder.
Above-mentioned auxiliary crosslinking agent is a Vinylstyrene.
A kind of preparation method of expanded polypropylene material, this method may further comprise the steps:
(1) whipping agent, frothing aid are pressed above-mentioned formula ratio uniform mixing, and ground to form the fine powder of 100 mesh sieves, i.e. modified foaming agent.
(2) modified foaming agent that PP, PE, nucleator, linking agent, auxiliary crosslinking agent and the step (1) of above-mentioned formula ratio obtained joins high mixing in the pot and mixed 10 minutes, and rotating speed is 600 r/min.
(3) mix after, promptly get expanded polypropylene material.
Performance of the present invention has been done following examining report, and reporting the result sees Table 1.
Table 1 Performance Detection account of the present invention.
Contrast with performance test results of the present invention and pure PP material: the tensile strength of material of the present invention (microporous foam PP material) reduces about 20% than pure PP; The Izod notched Izod impact strength improves about 30% than pure PP, and density has reduced about 20%.
The beneficial effects of the utility model are: the adding of PE can reduce cost in the utility model; significantly reduce with the syringe core rod PP materials under the volume, it is easy to have a moulding, the goods uniform in foaming; advantages such as mechanical strength is good help reducing cost and protecting environment.
Specific embodiment
Embodiment 1
Taking by weighing particle diameter is the azo diformazan phthalein amine 0.8kg of 4 μ m, and zinc oxide 0.5kg mixes, and grinds to form the fine powder of 100 mesh sieves, i.e. modified foaming agent.
With the PP:T30S of 80kg, 5kgPE, the 0.2kg granularity is 5000 purpose talcum powder, and 0.2kg dicumyl peroxide, the modified foaming agent that 0.5kg Vinylstyrene and abovementioned steps obtain join high mixing in the pot to be mixed 10 minutes, and rotating speed is 600 r/min.Mix and promptly get expanded polypropylene material of the present invention.
Embodiment 2
Taking by weighing particle diameter is the azo diformazan phthalein amine 1.2kg of 4 μ m, and zinc oxide 0.8kg mixes, and grinds to form the fine powder of 100 mesh sieves, i.e. modified foaming agent.
With the PP:T30S of 88kg, 13kgPE, the 0.35kg granularity is 5000 purpose talcum powder, and 0.5kg dicumyl peroxide, the modified foaming agent that 0.8kg Vinylstyrene and abovementioned steps obtain join high mixing in the pot to be mixed 10 minutes, and rotating speed is 600 r/min.Mix and promptly get expanded polypropylene material of the present invention.
Embodiment 3
Taking by weighing particle diameter is the azo diformazan phthalein amine 1.5kg of 4 μ m, and zinc oxide 1kg mixes, and grinds to form the fine powder of 100 mesh sieves, i.e. modified foaming agent.
With the PP:T30S of 95kg, 20kgPE, 0. 5kg granularity is 5000 purpose talcum powder, and 0.8kg dicumyl peroxide, the modified foaming agent that 1.2kg Vinylstyrene and abovementioned steps obtain join high mixing in the pot to be mixed 10 minutes, and rotating speed is 600 r/min.Mix and promptly get expanded polypropylene material of the present invention.
Claims (7)
1. expanded polypropylene material is characterized in that: count this material by weight ratio and made by following composition:
PP:T30S 80-95 part
PE:5-20 part
Whipping agent: 0.8-1.5 part
Frothing aid: 0.5-1 part
Linking agent: 0.2-0.8 part
Nucleator: 0.2-0.5 part
Auxiliary crosslinking agent: 0.5-1.2 part.
2. expanded polypropylene material according to claim 1 is characterized in that: described whipping agent is that particle diameter is the azo diformazan phthalein amine of 4 μ m.
3. expanded polypropylene material according to claim 1 is characterized in that: described frothing aid is a zinc oxide.
4. expanded polypropylene material according to claim 1 is characterized in that: described linking agent is a dicumyl peroxide.
5. expanded polypropylene material according to claim 1 is characterized in that: described nucleator is that granularity is 5000 purpose talcum powder.
6. expanded polypropylene material according to claim 1 is characterized in that: described auxiliary crosslinking agent is a Vinylstyrene.
7. the preparation method of an expanded polypropylene material as claimed in claim 1, it is characterized in that: this preparation method is:
(1) whipping agent, frothing aid are pressed above-mentioned formula ratio uniform mixing, and ground to form the fine powder of 100 mesh sieves, i.e. modified foaming agent;
(2) modified foaming agent that PP, PE, nucleator, linking agent, auxiliary crosslinking agent and the step (1) of above-mentioned formula ratio obtained joins high mixing in the pot and mixed 10 minutes, and rotating speed is 600 r/min;
(3) mix after, promptly get expanded polypropylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110250520 CN102276923B (en) | 2011-08-29 | 2011-08-29 | Foamed polypropylene material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110250520 CN102276923B (en) | 2011-08-29 | 2011-08-29 | Foamed polypropylene material |
Publications (2)
| Publication Number | Publication Date |
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| CN102276923A true CN102276923A (en) | 2011-12-14 |
| CN102276923B CN102276923B (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110250520 Active CN102276923B (en) | 2011-08-29 | 2011-08-29 | Foamed polypropylene material |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232626A (en) * | 2013-04-03 | 2013-08-07 | 宁波高新区辉门科技有限公司 | High temperature-resistant chemically cross-linked polyethylene foam material |
| CN103254507A (en) * | 2012-02-16 | 2013-08-21 | 合肥杰事杰新材料股份有限公司 | Stress-whitening-resistant filling-modified polypropylene composite material and preparation method thereof |
| CN103304889A (en) * | 2012-03-13 | 2013-09-18 | 明天塑料(上海)有限公司 | Foamed board for vehicle seat |
| CN103360711A (en) * | 2012-03-29 | 2013-10-23 | 上海杰事杰新材料(集团)股份有限公司 | Micro-pore foamed polypropylene material and preparation method thereof |
| CN103509245A (en) * | 2013-09-18 | 2014-01-15 | 湖北南泽汽车复合材料有限公司 | Production method of one-step method polypropylene foam material |
| CN103554658A (en) * | 2013-10-18 | 2014-02-05 | 深圳职业技术学院 | Porous plastic material and preparation method thereof |
| CN104311993A (en) * | 2014-09-24 | 2015-01-28 | 简淦欢 | Polypropylene sheet foaming technology |
| CN104987585A (en) * | 2015-06-03 | 2015-10-21 | 湖北南泽汽车复合材料有限公司 | Foamed automobile interior decorating material prepared from calcium sulfate whisker and polypropylene through mixing |
| CN105037932A (en) * | 2015-07-07 | 2015-11-11 | 福州海燕塑胶机械有限公司 | Polypropylene in-mold molded foamed product, and formula and making process thereof |
| CN107383563A (en) * | 2017-09-07 | 2017-11-24 | 苏州浩焱精密模具有限公司 | A kind of antibiotic plastic and preparation method thereof |
| CN107501593A (en) * | 2017-08-22 | 2017-12-22 | 成都新柯力化工科技有限公司 | It is a kind of with nanoscale polypropylene powder non-melt state blown foams method |
| CN108329597A (en) * | 2018-03-21 | 2018-07-27 | 惠州市峄董塑胶科技有限公司 | A kind of PP and PE alloy structure foaming plates and preparation method thereof |
| CN109181098A (en) * | 2018-07-16 | 2019-01-11 | 苏州润佳工程塑料股份有限公司 | A kind of low smell environmental protection PP composite material and preparation method thereof |
| CN113831646A (en) * | 2021-09-08 | 2021-12-24 | 南京雷泰克材料科技有限公司 | Preparation method of polypropylene foam |
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| CN1611539A (en) * | 2003-10-30 | 2005-05-04 | 中国石油化工股份有限公司 | Foamed poly propylene material and its preparing method |
| CN101081914A (en) * | 2007-07-06 | 2007-12-05 | 天津市润生塑胶制品有限公司 | Polypropylene expanded material and method for manufacturing same |
| CN101353460A (en) * | 2008-09-11 | 2009-01-28 | 丹阳市华东工程塑料有限公司 | Environment-friendly type micro-foaming polypropylene sheet and preparation thereof |
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2011
- 2011-08-29 CN CN 201110250520 patent/CN102276923B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1611539A (en) * | 2003-10-30 | 2005-05-04 | 中国石油化工股份有限公司 | Foamed poly propylene material and its preparing method |
| CN101081914A (en) * | 2007-07-06 | 2007-12-05 | 天津市润生塑胶制品有限公司 | Polypropylene expanded material and method for manufacturing same |
| CN101353460A (en) * | 2008-09-11 | 2009-01-28 | 丹阳市华东工程塑料有限公司 | Environment-friendly type micro-foaming polypropylene sheet and preparation thereof |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103254507A (en) * | 2012-02-16 | 2013-08-21 | 合肥杰事杰新材料股份有限公司 | Stress-whitening-resistant filling-modified polypropylene composite material and preparation method thereof |
| CN103304889A (en) * | 2012-03-13 | 2013-09-18 | 明天塑料(上海)有限公司 | Foamed board for vehicle seat |
| CN103360711B (en) * | 2012-03-29 | 2017-06-27 | 上海杰事杰新材料(集团)股份有限公司 | A kind of microporous foam polypropylene material and preparation method thereof |
| CN103360711A (en) * | 2012-03-29 | 2013-10-23 | 上海杰事杰新材料(集团)股份有限公司 | Micro-pore foamed polypropylene material and preparation method thereof |
| CN103232626A (en) * | 2013-04-03 | 2013-08-07 | 宁波高新区辉门科技有限公司 | High temperature-resistant chemically cross-linked polyethylene foam material |
| CN103509245A (en) * | 2013-09-18 | 2014-01-15 | 湖北南泽汽车复合材料有限公司 | Production method of one-step method polypropylene foam material |
| CN103509245B (en) * | 2013-09-18 | 2014-12-03 | 湖北南泽汽车复合材料有限公司 | Production method of one-step method polypropylene foam material |
| CN103554658A (en) * | 2013-10-18 | 2014-02-05 | 深圳职业技术学院 | Porous plastic material and preparation method thereof |
| CN104311993A (en) * | 2014-09-24 | 2015-01-28 | 简淦欢 | Polypropylene sheet foaming technology |
| CN104987585A (en) * | 2015-06-03 | 2015-10-21 | 湖北南泽汽车复合材料有限公司 | Foamed automobile interior decorating material prepared from calcium sulfate whisker and polypropylene through mixing |
| CN104987585B (en) * | 2015-06-03 | 2017-12-08 | 湖北南泽汽车复合材料有限公司 | The automotive trim expanded material that calcium sulfate crystal whiskers are mixed with polypropylene |
| CN105037932A (en) * | 2015-07-07 | 2015-11-11 | 福州海燕塑胶机械有限公司 | Polypropylene in-mold molded foamed product, and formula and making process thereof |
| CN107501593A (en) * | 2017-08-22 | 2017-12-22 | 成都新柯力化工科技有限公司 | It is a kind of with nanoscale polypropylene powder non-melt state blown foams method |
| CN107383563A (en) * | 2017-09-07 | 2017-11-24 | 苏州浩焱精密模具有限公司 | A kind of antibiotic plastic and preparation method thereof |
| CN108329597A (en) * | 2018-03-21 | 2018-07-27 | 惠州市峄董塑胶科技有限公司 | A kind of PP and PE alloy structure foaming plates and preparation method thereof |
| CN109181098A (en) * | 2018-07-16 | 2019-01-11 | 苏州润佳工程塑料股份有限公司 | A kind of low smell environmental protection PP composite material and preparation method thereof |
| CN113831646A (en) * | 2021-09-08 | 2021-12-24 | 南京雷泰克材料科技有限公司 | Preparation method of polypropylene foam |
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|---|---|
| CN102276923B (en) | 2013-05-15 |
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