CN103408823A - Highly-calcium-carbonate-filled highly-resilient soft foamed polyethylene material and preparation method thereof - Google Patents
Highly-calcium-carbonate-filled highly-resilient soft foamed polyethylene material and preparation method thereof Download PDFInfo
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- CN103408823A CN103408823A CN201310302239XA CN201310302239A CN103408823A CN 103408823 A CN103408823 A CN 103408823A CN 201310302239X A CN201310302239X A CN 201310302239XA CN 201310302239 A CN201310302239 A CN 201310302239A CN 103408823 A CN103408823 A CN 103408823A
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Abstract
The invention discloses a highly-calcium-carbonate-filled highly-resilient soft foamed polyethylene material. The highly-calcium-carbonate-filled highly-resilient soft foamed polyethylene material comprises, by mass, 15-20 parts of PE, 5-20 parts of an elastomer, 60-80 parts of modified calcium carbonate, 1-10 parts of a foaming agent and 0.5-1.5 parts of a cross-linking agent. A preparation method of the highly-calcium-carbonate-filled highly-resilient soft foamed polyethylene material is characterized in that the preparation method comprises the following steps: 1, drying calcium carbonate powder; 2, fully mixing the calcium carbonate powder obtained in step 1 with a coupling agent; 3, plasticating the PE and the elastomer in an open mill; 4, sequentially adding the modified calcium carbonate obtained in step 2, the foaming agent and the cross-linking agent into a system obtained in step 3, and mixing; and 5, carrying out one-time hot pressing foaming or two-time hot pressing foaming of a mixture obtained after the mixing.
Description
Technical field
The present invention relates to the high flexible foamed polythene material of high resilience and preparation method thereof of filling of a kind of calcium carbonate.
Background technology
The polyethylene foamed material surface is smooth, and impact absorbency is good, bumper and absorbing shock and rebound resilience excellence, tensile strength is high, and good chemical stability, good anti-environmental aging and weathering resistance are arranged, insulation, heat insulation, and cheap, be to apply at present maximum foam materials.The deficiencies such as but current polyethylene foam-material still exists flexural strength, compressive strength and poor heat resistance, and rigidity and hardness are low, limited its application.For this reason, people are everlasting in the forming materials course of processing and add mineral filler, can improve on the one hand rigidity, hardness and other mechanical properties of polyethylene foamed material, can reduce again on the other hand the cost of material.
Summary of the invention
The object of the present invention is to provide the high flexible foamed polythene material of high resilience and preparation method thereof of filling of a kind of calcium carbonate.
The technical solution used in the present invention is:
The high flexible foamed polythene material of high resilience of filling of a kind of calcium carbonate, its raw material by following mass parts forms: the whipping agent of the elastomerics of the PE of 15-20 part, 5-20 part, the modified calcium carbonate of 60-80 part, 1-10 part, the linking agent of 0.5-1.5 part.
Described PE is at least a in LDPE, HDPE, LLDPE.
Described elastomerics is at least a in POE, EVA, SEBS, SBS, EPDM, EPR.
Described modified calcium carbonate is coupling agent modified calcium carbonate, and the order number of described calcium carbonate >=500 orders, described coupling agent are at least a in titanate coupling agent, aluminate coupling agent, aluminium titanium composite coupler.
Described whipping agent is that Cellmic C 121, zinc oxide, Zinic stearas are according to mass ratio 1:(1-1.5): (0.15-2) mix and form.
Described linking agent comprises dicumyl peroxide, 2,5-dimethyl-2,5-bis-(tert-butyl peroxy base) hexane.
The high preparation method who fills the flexible foamed polythene material of high resilience of a kind of calcium carbonate comprises the following steps:
1) order number >=500 purpose Paris whites are dried to moisture content≤0.1%;
2) dried Paris white is mixed 100:0.5～3 in mass ratio fully with coupling agent;
3) PE and elastomerics are placed in to mill and plasticate, 110～120 ℃ of plasticating temperatures, plasticate 2～5 minutes time;
4) by step 2) in the coupling agent modified calcium carbonate, whipping agent, the linking agent that the make system that is sequentially added into upper step carry out mixing, 120～130 ℃ of melting temperatures, mixing time 10～15 minutes;
5) material after mixing is placed in mould, mould is placed in to vulcanizing press, at 160～180 ℃, under 5～15MPa condition, hot-pressing and foaming is 5～15 minutes, and die sinking is taken out, and light compression set type can make the polyethylene foamed material; Or the material after mixing is placed in mould, mould is placed in to vulcanizing press, at 145～165 ℃, under 5～15MPa condition, foamed 3～10 minutes, be cooled to the room temperature demoulding, the foamed after the demoulding can be made to the polyethylene foamed material in 5～10 minutes at 170～180 ℃ of lower second time of foaming.
The invention has the beneficial effects as follows: the present invention can prepare calcium carbonate-filled amount up to 55～75% the flexible foamed polythene material of high calcium carbonate filled high resilience, keeping, on the elastic basis of foam material, improving density, rigidity, hardness and the compressive strength of this material.Production technique of the present invention is simple, can greatly reduce costs, economical and practical.
Embodiment
The high flexible foamed polythene material of high resilience of filling of a kind of calcium carbonate, its raw material by following mass parts forms: the whipping agent of the elastomerics of the PE of 15-20 part, 5-20 part, the modified calcium carbonate of 60-80 part, 1-10 part, the linking agent of 0.5-1.5 part.
Described PE is at least a in LDPE, HDPE, LLDPE.
Described elastomerics is at least a in POE, EVA, SEBS, SBS, EPDM, EPR.
Described modified calcium carbonate is coupling agent modified calcium carbonate, and the order number of described calcium carbonate >=500 orders, described coupling agent are at least a in titanate coupling agent, aluminate coupling agent, aluminium titanium composite coupler; Described coupling agent modified calcium carbonate is preparation like this:
1) order number >=500 purpose Paris whites are dried to moisture content≤0.1%;
2) dried Paris white is carried out getting final product sufficient the mixing in 100:0.5～3 with coupling agent in mass ratio.
Described whipping agent is that Cellmic C 121, zinc oxide, Zinic stearas are according to mass ratio 1:(1-1.5): (0.15-2) mix and form.
Described linking agent comprises dicumyl peroxide, 2,5-dimethyl-2,5-bis-(tert-butyl peroxy base) hexane.
Corresponding, the high preparation method who fills the flexible foamed polythene material of high resilience of a kind of calcium carbonate comprises the following steps:
1) order number >=500 purpose Paris whites are dried to moisture content≤0.1%;
2) dried Paris white is mixed 100:0.5～3 in mass ratio fully with coupling agent;
3) PE and elastomerics are placed in to mill and plasticate, 110～120 ℃ of plasticating temperatures, plasticate 2～5 minutes time;
4) by step 2) in the coupling agent modified calcium carbonate, whipping agent, the linking agent that the make system that is sequentially added into upper step carry out mixing, 120～130 ℃ of melting temperatures, mixing time 10～15 minutes;
5) material after mixing is placed in mould, mould is placed in to vulcanizing press, at 160～180 ℃, under 5～15MPa condition, hot-pressing and foaming is 5～15 minutes, and die sinking is taken out, and light compression set type can make the polyethylene foamed material; Or the material after mixing is placed in mould, mould is placed in to vulcanizing press, at 145～165 ℃, under 5～15MPa condition, foamed 3～10 minutes, be cooled to the room temperature demoulding, the foamed after the demoulding can be made to the polyethylene foamed material in 5～10 minutes at 170～180 ℃ of lower second time of foaming.
The present invention is described further below in conjunction with specific embodiment:
Embodiment 1:
At first get 50 gram Low Density Polyethylenes and 50 gram POE and mix and put into 115 ℃ of two roller mills and plasticated 3 minutes, then (model: AT2-TMC-311w) modified calcium carbonate, 6 gram Cellmic C 121s, 4 gram zinc oxide, 1 gram Zinic stearas, 0.5 gram dicumyl peroxide are mixing 15 minutes at 130 ℃ to add successively 200 gram 500 purpose titanate coupling agents.Then the material after mixing is placed in to mould, then mould is put into to vulcanizing press, at 165 ℃, under 10MPa, reaction is 10 minutes, and material is taken out in die sinking, gently presses the cooling target foam material that namely makes.
Described 500 purpose titanate coupling agent modified calcium carbonate are preparations like this:
1) by the order number, be that 500 purpose Paris whites are dried to moisture content≤0.1%;
2) (model: AT2-TMC-311w) 100:0.5 is placed in high-speed mixer and mixes fully 5min and get final product in mass ratio for the Paris white upper step obtained and titanate coupling agent.
Embodiment 2:
At first get 40 gram Low Density Polyethylenes, 40 gram POE and 20 gram linear low density polyethylenes mix to be put into 120 ℃ of two roller mills and plasticated 3 minutes, then (model: AT2-TMC-311w) modified calcium carbonate, 5 gram Cellmic C 121s, 4 gram zinc oxide, 1 gram Zinic stearas, 1 gram dicumyl peroxide are mixing 15 minutes at 135 ℃ to add successively 150 gram 500 purpose titanate coupling agents.Then the material after mixing is placed in to mould, then mould is put into to vulcanizing press, at 170 ℃, under 10MPa, reaction is 10 minutes, and material is taken out in die sinking, gently presses the cooling target foam material that namely makes.
Described 500 purpose titanate coupling agent modified calcium carbonate are preparations like this:
1) by the order number, be that 500 purpose Paris whites are dried to moisture content≤0.1%;
2) (model: AT2-TMC-311w) 100:3 is placed in high-speed mixer and mixes fully 10min in mass ratio for the Paris white upper step obtained and titanate coupling agent.
Embodiment 3:
At first get 50 gram high density polyethylene(HDPE)s, 25 gram Low Density Polyethylenes and 25 gram POE mix and put into 130 ℃ of two roller mills and plasticated 5 minutes, then (model: AT2-TMC-311w) modified calcium carbonate, 4 gram Cellmic C 121s, 6 gram zinc oxide, 1 gram Zinic stearas, 0.8 gram dicumyl peroxide are mixing 15 minutes at 130 ℃ to add successively 210 gram 1000 purpose titanate coupling agents.Then the material after mixing is placed in to mould, then mould is put into to vulcanizing press, at 160 ℃, under 10MPa, reaction is 5 minutes, cooling and demolding, then the material after the demoulding is warming up to 180 ℃ (no longer exerting pressure) foaming 5 minutes, can make the target foam material.
Described 1000 purpose titanate coupling agent modified calcium carbonate are preparations like this:
1) by the order number, be that 1000 purpose Paris whites are dried to moisture content≤0.1%;
2) (model: AT2-TMC-311w) 100:1 is placed in high-speed mixer and mixes fully 20min in mass ratio for the Paris white upper step obtained and titanate coupling agent.
Embodiment 4:
At first get 50 gram Low Density Polyethylenes, 40 gram high density polyethylene(HDPE)s and 10 gram POE mix and put into 110 ℃ of two roller mills and plasticated 5 minutes, add successively 240 gram 1250 purpose titanate coupling agent modified calcium carbonate, 7 gram Cellmic C 121s, 3 gram zinc oxide, 1 gram Zinic stearas, 1.5 gram dicumyl peroxides mixing 15 minutes at 125 ℃.Then the material after mixing is placed in to mould, then mould is put into to vulcanizing press, at 160 ℃, under 10MPa, reaction is 5 minutes, and cooling and demolding is warming up to 180 ℃ (no longer exerting pressure) foaming 5 minutes, can make the target foam material.
Described 1250 purpose titanate coupling agent modified calcium carbonate are preparations like this:
1) by the order number, be that 1250 purpose Paris whites are dried to moisture content≤0.1%;
2) (model: AT2-TMC-311w) 100:2 is placed in high-speed mixer and mixes fully 20min in mass ratio for the Paris white upper step obtained and titanate coupling agent.
Embodiment 5:
At first get 80 gram Low Density Polyethylenes, 10 gram high density polyethylene(HDPE)s and 10 gram POE mix and put into 125 ℃ of two roller mills and plasticated 5 minutes, add successively 250 gram 1500 purpose titanate coupling agent modified calcium carbonate, 5 gram Cellmic C 121s, 4 gram zinc oxide, 0.8 gram Zinic stearas, 1 gram dicumyl peroxide mixing 15 minutes at 135 ℃.Then the material after mixing is placed in to mould, then mould is put into to vulcanizing press, at 170 ℃, under 10MPa, reaction is 5 minutes, and cooling and demolding is warming up to 180 ℃ (no longer exerting pressure) foaming 10 minutes, can make the target foam material.
Described 1500 purpose titanate coupling agent modified calcium carbonate are preparations like this:
1) by the order number, be that 1500 purpose Paris whites are dried to moisture content≤0.1%;
2) (model: AT2-TMC-311w) 100:2.5 is placed in high-speed mixer and mixes fully 20min in mass ratio for the Paris white upper step obtained and titanate coupling agent.
In the present invention, the model of LDPE used, HDPE, LLDPE is respectively: LDPE 1810D, HDPE F120A, LLDPE 218W.
The expansion ratio of the foam material that the present invention is prepared is greater than 7 times.The gained foam material is made to the standard batten, and compressive strength is tested according to GB/T 18942-1 speed of 100mm/min under normal temperature.Through test, the foam material compressive strength >=0.1MP of gained, compression set≤7%.
Claims (7)
1. a calcium carbonate height is filled the flexible foamed polythene material of high resilience, and it is characterized in that: its raw material by following mass parts forms: the whipping agent of the elastomerics of the PE of 15-20 part, 5-20 part, the modified calcium carbonate of 60-80 part, 1-10 part, the linking agent of 0.5-1.5 part.
2. the high flexible foamed polythene material of high resilience of filling of a kind of calcium carbonate according to claim 1 is characterized in that: described PE is at least a in LDPE, HDPE, LLDPE.
3. the high flexible foamed polythene material of high resilience of filling of a kind of calcium carbonate according to claim 1 is characterized in that: described elastomerics is at least a in POE, EVA, SEBS, SBS, EPDM, EPR.
4. a kind of calcium carbonate height according to claim 1 is filled the flexible foamed polythene material of high resilience, it is characterized in that: described modified calcium carbonate is coupling agent modified calcium carbonate, the order number of described calcium carbonate >=500 orders, described coupling agent are at least a in titanate coupling agent, aluminate coupling agent, aluminium titanium composite coupler.
5. a kind of calcium carbonate height according to claim 1 is filled the flexible foamed polythene material of high resilience, and it is characterized in that: described whipping agent is that Cellmic C 121, zinc oxide, Zinic stearas are according to mass ratio 1:(1-1.5): (0.15-2) mix and form.
6. a kind of calcium carbonate height according to claim 1 is filled the flexible foamed polythene material of high resilience, and it is characterized in that: described linking agent comprises dicumyl peroxide, 2,5-dimethyl-2,5-bis-(tert-butyl peroxy base) hexane.
7. a kind of calcium carbonate height claimed in claim 1 is filled the preparation method of the flexible foamed polythene material of high resilience, it is characterized in that: comprise the following steps:
1) order number >=500 purpose Paris whites are dried to moisture content≤0.1%;
2) dried Paris white is mixed 100:0.5～3 in mass ratio fully with coupling agent;
3) PE and elastomerics are placed in to mill and plasticate, 110～120 ℃ of plasticating temperatures, plasticate 2～5 minutes time;
4) by step 2) in the coupling agent modified calcium carbonate, whipping agent, the linking agent that the make system that is sequentially added into upper step carry out mixing, 120～130 ℃ of melting temperatures, mixing time 10～15 minutes;
5) material after mixing is placed in mould, mould is placed in to vulcanizing press, at 160～180 ℃, under 5～15MPa condition, hot-pressing and foaming is 5～15 minutes, and die sinking is taken out, and light compression set type can make the polyethylene foamed material; Or the material after mixing is placed in mould, mould is placed in to vulcanizing press, at 145～165 ℃, under 5～15MPa condition, foamed 3～10 minutes, be cooled to the room temperature demoulding, the foamed after the demoulding can be made to the polyethylene foamed material in 5～10 minutes at 170～180 ℃ of lower second time of foaming.
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| CN112409674A (en) * | 2020-11-24 | 2021-02-26 | 苏州艾尔杰新材料科技有限公司 | Foaming preparation process of high-hardness PE material |
| CN114058105A (en) * | 2021-12-20 | 2022-02-18 | 东莞市通元高分子材料科技有限公司 | Polyethylene foam material and preparation method thereof |
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| CN103408823B (en) | 2015-11-18 |
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Effective date of registration: 20161101 Address after: 510000 Guangdong city of Guangzhou province Panyu District Shawan Town Nishimura Xi Gang Industrial Zone two ranked No. 4 of three Patentee after: GUANGZHOU SHITOUZAO ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: 510631 College of chemistry and environment, South China Normal University, Guangdong, Guangzhou, China Patentee before: South China Normal University |
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