CN101289554A - Environment protection material for wiping pencil lead and production process thereof - Google Patents
Environment protection material for wiping pencil lead and production process thereof Download PDFInfo
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- CN101289554A CN101289554A CNA200710054240XA CN200710054240A CN101289554A CN 101289554 A CN101289554 A CN 101289554A CN A200710054240X A CNA200710054240X A CN A200710054240XA CN 200710054240 A CN200710054240 A CN 200710054240A CN 101289554 A CN101289554 A CN 101289554A
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Abstract
The invention relates to a novel environment-friendly pencil eraser material and a method for producing the same. The compound is prepared according to the steps that: epoxidized soybean oil and four auxiliary agents are added into butylbenzene rubber and natural rubber, then natural calcium carbonate is added into the mixture to be mixed. The butylbenzene rubber in the invention has good performance and low cost, reduces the production cost; the epoxidized soybean oil has no toxicity and no peculiar smell, so the epoxidized soybean oil has no pollution and steady service performance; and the material and the method have simple process and low production cost, are easy to control the quality, and are suitable for large-scale production.
Description
Technical field
The invention belongs to the culture and education articles for use, be applicable to the material of wiping pencil writing product.
Background technology
The rubber of present wiping pencil writing both domestic and external mostly is greatly with plastic pvc and adds plastics fragrance rubber that a little spices are made and the rubber rubber made from rubber.The erasing rubber made from plastic pvc is aging easily, deposit half a year after, wipe the word soil removal efficiency and obviously reduce.Owing to the osmosis of softening agent in the plastic pvc erasing rubber, also can damage other plastics when putting together in addition when mixing with other plastics.In the process of producing erasing rubber with plastic pvc, environmental pollution is arranged also.And make its complex manufacturing of erasing rubber with rubber, consume a large amount of vegetables oil and paraffin oil (as Chinese patent application 00119024.5), because the erasing rubber that this method makes is wiped skin plasticity-is arranged, it is low to wipe the word soil removal efficiency, when rub body is used to a certain degree and another piece rub body kneading graphite of incorporating former rub body when using can cause secondary pollution to paper, and paraffin oil is toxic, can cause environmental pollution.
Technology contents
The purpose of this invention is to provide a kind of environment protection material for wiping pencil lead and production method thereof, the present invention is, by the natural rubber particle, and natural whiting, epoxy soybean oil and 4 kinds of auxiliary agents are formed, and their component is:
Material component is by weight:
Styrene-butadiene rubber(SBR) 10～15
Natural rubber 4～7
Natural whiting 45～55
Epoxy soybean oil 25～30
4 kinds of auxiliary agents 1.6～2.5
4 kinds of adjuvant components are EBS 0.3～0.6 Zinic stearas 0.7～0.9
Antioxidant D ED0.2～0.4 stabilizer for plastics 0.4～0.6.
The invention provides a kind of environment protection material for wiping pencil lead, its preferred component is:
The material component weight part is:
Styrene-butadiene rubber(SBR) 12.5
Natural rubber 5.7
Natural whiting 52
Epoxy soybean oil 27.7
4 kinds of auxiliary agents 2.1
4 kinds of auxiliary agents are EBS0.5 Zinic stearas 0.8
Antioxidant D ED 0.3 stabilizer for plastics 0.5
The production method that the invention provides a kind of environment protection material for wiping pencil lead is: styrene-butadiene rubber(SBR), natural rubber particle, epoxy soybean oil and 4 kinds are helped (component is EBS, Zinic stearas, antioxidant D ED, stabilizer for plastics) to add to carry out 30 minutes temperature of stirring heating in the agitator kettle be raised to 108 ℃～112; Then to slow adding natural whiting; granulation fully takes the dish out of the pot after mixing 20 minutes; set the tablets press temperature: one section heating: 146 ℃, two sections heating: 144 ℃, three sections heating: 142 ℃, four sections heating: 138 ℃, five sections heating: 136 ℃, six sections heating: 134 ℃, seven sections heating: 132 ℃, eight sections heating: 130 ℃, nine sections heating: 128 ℃, die head temperature: 126 ℃; the raw material that stirs is packed in the tablets press hopper; carry out granulation, get particulate material.
The optimal way that the invention provides a kind of environment protection material for wiping pencil lead production method is: styrene-butadiene rubber(SBR), natural rubber particle, epoxy soybean oil and 4 kinds are helped (component is an EBS Zinic stearas antioxidant D ED stabilizer for plastics) to add to carry out 30 minutes temperature of stirring heating in the agitator kettle be raised to 110 ℃; Slowly add natural whiting then; granulation fully takes the dish out of the pot after mixing 20 minutes; set the tablets press temperature: one section heating: 146 ℃, two sections heating: 144 ℃, three sections heating: 142 ℃, four sections heating: 138 ℃, five sections heating: 136 ℃, six sections heating: 134 ℃, seven sections heating: 132 ℃, eight sections heating: 130 ℃, nine sections heating: 128 ℃, die head temperature: 126 ℃; the raw material that stirs is packed in the tablets press hopper; carry out granulation, get the particulate material of White-opalescent shape.
The invention provides a kind of environment protection material for wiping pencil lead and production method thereof, this environment protection material for wiping pencil lead is to add by adding epoxy soybean oil and 4 kinds of auxiliary agents that natural whiting is mixing to be made by a kind of general purpose synthetic rubber styrene-butadiene rubber(SBR) and natural rubber again.Styrene-butadiene rubber(SBR) among the present invention has good tackiness, wear resistance and ageing resistance, and can with natural rubber and multiple synthetic rubber and usefulness, the styrene-butadiene rubber(SBR) high comprehensive performance is the raw material of the tool price advantage of general purpose synthetic rubber.So improved product performance greatly, reduced manufacturing cost.The epoxy soybean oil that uses among the present invention is a kind of nonpoisonous and tasteless softening agent stablizer of holding concurrently, have good-toughness, intermiscibility is good, volatility is good, transport property is little, prolong the effect of digestion time, so this product have do not hinder after nontoxic, free from extraneous odour, the wiping paper, free from smutting during, durable, be easy to paintedly, use properties is stablized advantages such as non-environmental-pollution.Styrene-butadiene rubber(SBR) and natural rubber have adhesive attraction to graphite in the pencil writing etc., through repeatedly experiment, the eraser that the composition of interpolation epoxy soybean oil is made is wiped the word soil removal efficiency up to 30.5%, and the eraser that the composition that adds other vegetables oil is made is wiped the word soil removal efficiency 15%～22%, and therefore the effect of adding epoxy soybean oil is all better than the effect of other any vegetables oil.This method can be widely used in multiple product forming modes such as forcing machine, injection moulding machine, mold pressing; the recycling fully of rim charge, clout and waste material; and do not change performance, reduce waste, simplified processing process; save power consumption of polymer processing and device resource; reduce production costs, improve work efficiency, processing aid and compounding aid are less; quality is easier to control, is fit to large-scale production.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment 1
Be weight part 11 parts of styrene-butadiene rubber(SBR) earlier; 8 parts of natural rubber particles; 29 parts of epoxy soybean oils and 2 parts 4 kinds help component, and (EBS 0.3; Zinic stearas 0.8; antioxidant D ED0.4; stabilizer for plastics 0.6) carries out stirring heating in the adding agitator kettle; temperature is raised to 108 ℃ after 30 minutes; slowly add the abundant granulation that takes the dish out of the pot after mixing 20 minutes of 50 parts of natural whitings then; set the tablets press temperature: one section heating: 146 ℃; two sections heating: 144 ℃; three sections heating: 142 ℃; four sections heating: 138 ℃; five sections heating: 136 ℃; six sections heating: 134 ℃; seven sections heating: 132 ℃; eight sections heating: 130 ℃; nine sections heating: 128 ℃; die head temperature: 126 ℃; the raw material that stirs is packed in the tablets press hopper, carry out granulation and get particulate material.
Embodiment 2
Earlier 10 parts of styrene-butadiene rubber(SBR); 7 parts of natural rubber particles; 30 parts of epoxy soybean oils and 2.5 parts 4 kinds help component, and (EBS 0.6; Zinic stearas 0.9; antioxidant D ED0.4; stabilizer for plastics 0.6) carries out stirring heating in the adding agitator kettle; temperature is raised to 108 ℃ after 30 minutes; slowly add the abundant granulation that takes the dish out of the pot after mixing 20 minutes of 50 natural whitings then; set the tablets press temperature: one section heating: 146 ℃; two sections heating: 144 ℃; three sections heating: 142 ℃; four sections heating: 138 ℃; five sections heating: 136 ℃; six sections heating: 134 ℃; seven sections heating: 132 ℃; eight sections heating: 130 ℃; nine sections heating: 128 ℃; die head temperature: 126 ℃; the raw material that stirs is packed in the tablets press hopper, carry out granulation and get particulate material.
Embodiment 3
Earlier 12.5 parts of styrene-butadiene rubber(SBR); 5.7 part natural rubber particle; 27.7 epoxy soybean oil and 2.1 parts 4 kinds auxiliary agent (adjuvant component EBS0.5; Zinic stearas 0.8; antioxidant D ED 0.3; plastics are decided agent 0.5) add in the agitator kettle and carry out stirring heating; temperature is raised to 110 ℃ after 30 minutes; slowly add the abundant granulation that takes the dish out of the pot after mixing 20 minutes of 52 parts of natural whitings then; set the tablets press temperature: one section heating: 146 ℃; two sections heating: 144 ℃; three sections heating: 142 ℃; four sections heating: 138 ℃; five sections heating: 136 ℃; six sections heating: 134 ℃; seven sections heating: 132 ℃; eight sections heating: 130 ℃; nine sections heating: 128 ℃; die head temperature: 126 ℃; the raw material that stirs is packed in the tablets press hopper, carry out granulation and get particulate material.
Embodiment 4
Earlier 15 parts of styrene-butadiene rubber(SBR); 4 parts of natural rubber particles; 30 parts of epoxy soybean oils and 2.0 parts 4 kinds help component, and (EBS 0.6; Zinic stearas 0.7; antioxidant D ED0.3; stabilizer for plastics 0.4) carries out stirring heating in the adding agitator kettle; temperature is raised to 112 ℃ after 30 minutes; slowly add the abundant granulation that takes the dish out of the pot after mixing 20 minutes of 49 parts of natural whitings then; set the tablets press temperature: one section heating: 146 ℃; two sections heating: 144 ℃; three sections heating: 142 ℃; four sections heating: 138 ℃; five sections heating: 136 ℃; six sections heating: 134 ℃; seven sections heating: 132 ℃; eight sections heating: 130 ℃; nine sections heating: 128 ℃; die head temperature: 126 ℃; the raw material that stirs is packed in the tablets press hopper, carry out granulation and get particulate material.
The embodiment 5 of elder generation
Earlier 14 parts of styrene-butadiene rubber(SBR); 5 parts of natural rubber particles; 29.5 (EBS 0.6 for part epoxy soybean oil and 2.5 parts of 4 kinds of auxiliary agents; Zinic stearas 0.9; antioxidant D ED0.4; stabilizer for plastics 0.6) carries out stirring heating in the adding agitator kettle; temperature is raised to 112 ℃ after 30 minutes; slowly add the abundant granulation that takes the dish out of the pot after mixing 20 minutes of 50 parts of natural whitings then; set the tablets press temperature: one section heating: 146 ℃; two sections heating: 144 ℃; three sections heating: 142 ℃; four sections heating: 138 ℃; five sections heating: 136 ℃; six sections heating: 134 ℃; seven sections heating: 132 ℃; eight sections heating: 130 ℃; nine sections heating: 128 ℃; die head temperature: 126 ℃; the raw material that stirs is packed in the tablets press hopper, carry out granulation and get particulate material.
Claims (4)
1, a kind of environment protection material for wiping pencil lead, by styrene-butadiene rubber(SBR), the natural rubber particle, natural whiting, epoxy soybean oil and 4 kinds of auxiliary agents are formed;
The raw material that the mixed rubber erasing rubber is wiped composition is by weight:
Styrene-butadiene rubber(SBR) 10～15
Natural rubber 4～7
Natural whiting 45～55
Epoxy soybean oil 25～30
4 kinds of auxiliary agents 1.5～3.0
4 kinds of auxiliary agents are EBS 0.3～0.6 Zinic stearas 0.7～0.9 by weight
Antioxidant D ED0.2～0.4 stabilizer for plastics 0.4～0.6;
2, environment protection material for wiping pencil lead according to claim 1, the raw material that it is characterized by mixed rubber erasing rubber wiping composition is by weight:
Styrene-butadiene rubber(SBR) 12.5
Natural rubber 5.7
Natural whiting 52
Epoxy soybean oil 27.7
4 kinds of auxiliary agents 2.1
4 kinds of auxiliary agents are EBS0.5 Zinic stearas 0.8 by weight
Antioxidant D ED 0.3 one package stabilizer 0.5
3, the production method of environment protection material for wiping pencil lead according to claim 1 and 2 is:
A, styrene-butadiene rubber(SBR), natural rubber particle, epoxy soybean oil and 4 kinds are helped (component is EBS, Zinic stearas, antioxidant D ED, stabilizer for plastics) to add to carry out 30 minutes temperature of stirring heating in the agitator kettle be raised to 108 ℃～112;
B and then slowly add natural whiting fully takes the dish out of the pot after mixing 20 minutes
C, setting tablets press temperature: one section heating: 146 ℃, two sections heating: 144 ℃, three sections heating: 142 ℃, four sections heating: 138 ℃, five sections heating: 136 ℃, six sections heating: 134 ℃, seven sections heating: 132 ℃, eight sections heating: 130 ℃, nine sections heating: 128 ℃, die head temperature: 126 ℃; the raw material that the B step is stirred is packed in the tablets press hopper; carry out granulation, get particulate material.
4, the production method of environment protection material for wiping pencil lead according to claim 3 is characterized by: temperature is 110 ℃ in the described steps A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710054240XA CN101289554B (en) | 2007-04-17 | 2007-04-17 | Environment protection material for wiping pencil lead and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710054240XA CN101289554B (en) | 2007-04-17 | 2007-04-17 | Environment protection material for wiping pencil lead and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101289554A true CN101289554A (en) | 2008-10-22 |
| CN101289554B CN101289554B (en) | 2011-02-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710054240XA Expired - Fee Related CN101289554B (en) | 2007-04-17 | 2007-04-17 | Environment protection material for wiping pencil lead and production process thereof |
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| Country | Link |
|---|---|
| CN (1) | CN101289554B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231343A (en) * | 2014-08-29 | 2014-12-24 | 朱其贵 | Rubber material with extremely thin rubber flavor |
| CN110054814A (en) * | 2019-04-30 | 2019-07-26 | 邵淑华 | A kind of India rubber wipes the preparation method of material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034891A (en) * | 1988-02-03 | 1989-08-23 | 郭澄玉 | resin erasing rubber and production method thereof |
| CN1084352C (en) * | 1999-06-25 | 2002-05-08 | 曹金平 | Multifunctional adhesive |
| US6441091B1 (en) * | 2001-07-27 | 2002-08-27 | Binney & Smith | Eraser |
-
2007
- 2007-04-17 CN CN200710054240XA patent/CN101289554B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231343A (en) * | 2014-08-29 | 2014-12-24 | 朱其贵 | Rubber material with extremely thin rubber flavor |
| CN110054814A (en) * | 2019-04-30 | 2019-07-26 | 邵淑华 | A kind of India rubber wipes the preparation method of material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101289554B (en) | 2011-02-02 |
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Granted publication date: 20110202 Termination date: 20120417 |