CN1206023A - Fully degradeable foamed material - Google Patents
Fully degradeable foamed material Download PDFInfo
- Publication number
- CN1206023A CN1206023A CN 97109174 CN97109174A CN1206023A CN 1206023 A CN1206023 A CN 1206023A CN 97109174 CN97109174 CN 97109174 CN 97109174 A CN97109174 A CN 97109174A CN 1206023 A CN1206023 A CN 1206023A
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- China
- Prior art keywords
- fully
- degradeable
- foamed
- gram
- starch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The foamed plastic uses starch as main raw material and is prepared through mixing fully with talcum powder, octadecylate, paper pulp or powder, foaming agent and water and moulding at high temperature. It can be degraded biologically and thus will not pollute environment; is light, cheap, heat insulated and shockproof; and can be used to replace formed EPS plastic in producing disposable tableware, shockproof packing material, building partition, heat-isolating material, etc.
Description
The present invention relates to a kind of lightweight foam material of easy degraded, can be used for fields such as fast food lunch-box, shock resistant packaging, building partition, heat-insulation and heat-preservation.
Because the needs of environment protection, the developing country that western developed country and some environmental consciousnesses are stronger is more and more stricter to the use restriction of EPS foamed glue.The many famous-brand and high-quality goods of China are owing to used the EPS foamed glue and by many national import prohibitions in the packing material.Aspect fast food lunch-box, the EPS foamed glue is limited to use too.At present, the most of key city of China and the railway system have all prohibited and have used the porous plastics lunch box.Its reason is that the EPS foamed glue can not be degraded by biological, causes serious " white pollution " after abandoning.
The present invention is exactly that be developed at the not biodegradable of EPS foamed glue a kind of has the structural form that is similar to the EPS foamed glue and the biodegradable foam material-fully degradeable foamed material of physicals.
The present invention is based on starch, and the divalence or trivalent metal salt, paper pulp or paper powder, whipping agent and the water etc. that mix talcum powder, octadecanoic acid make by the hot press moulding shaping behind thorough mixing.
The proportioning of various materials is as follows:
Material share (weight)
Starch 1
Talcum powder 0.4~1
Paper pulp or paper powder 0~2
Octadecane hydrochlorate 0.01~0.1
Blowing agent H 0.01~0.1
Urea 0.08~0.2
Alum 0.10~0.35
Sodium bicarbonate 0.05~0.2
Water is an amount of
The consumption of water is generally 55~75% of total amount in this prescription.
Concrete making method is:
1. earlier the water of 4~5 times of starch and starch weight is stirred evenly, under agitation heating makes abundant gelatinization.
2. blowing agent H and octadecane hydrochlorate are pulverized.
3. alum, sodium bicarbonate and urea are dissolved in respectively in an amount of water.
4. all material mixing and supply the water of formula ratio in will filling a prescription fully integrates into compound.
5. with mold heated to 180~260 of tool exhaust seam ℃.
6. get an amount of compound, insert the die cavity, the matched moulds that have heated.Perhaps inject an amount of compound with injection system to die cavity, back depanning to be dried can be similar to the goods of foamed glue sample material.
This material can be made the goods of shock resistant packaging material, disposable tableware or other purposes as required.
The octadecane hydrochlorate that uses in this invention means the divalence or the trivalent salt of octadecanoic acid.As octadecanoic acid calcium, octadecanoic acid zinc, octadecanoic acid aluminium etc.Whipping agent also can be selected other organic or inorganic whipping agents for use.
The material of the degradable foaming glue sample of making according to this invention has light weight, advantage such as inexpensive, and has and the similar anti-seismic performance of EPS foamed glue.
Embodiment:
1. be blended into 250 ml waters in 50 gram starch, stir evenly, heating makes its abundant gelatinization, then, adds 10 gram octadecanoic acid zinc fine powders, 5 gram blowing agent H fine powders, 10 gram sodium bicarbonate and 10 gram urea respectively and adds the solution that 150 ml waters form, and stirs evenly.Add 20 gram talcum powder, 100 grams again through being ground into the disregard message paper of fiber fines shape, the solution that 17.5 gram alum and 220 ml waters form through fully rubbing up, makes it even.
With mold heated to 250 ℃, get above-mentioned compound and inject die cavity in right amount, depanning after about 3 minutes, the shock resistant packaging material is oblique, its density is 0.2 gram/cubic centimetre, ultimate compression strength
2. be blended into 250 ml waters in 50 gram starch, stir evenly, heating makes its abundant gelatinization, then, adds 7 gram octadecanoic acid zinc fine powders, 3.5 gram blowing agent H fine powders, 8 gram sodium bicarbonate and 7 gram urea respectively and adds the solution that 100 ml waters form, and stirs evenly.Add the solution that 30 gram talcum powder, 95 grams disregard message paper, 15 gram alum and 150 ml waters through being ground into fiber fines form again,, make it even through fully rubbing up.
With mold heated to 240 ℃, get above-mentioned compound and inject die cavity in right amount, depanning after about 4 minutes, the shock resistant packaging material, its density is 0.21 gram/cubic centimetre, ultimate compression strength
3. be blended into 250 ml waters in 50 gram starch, stir evenly, heating makes its abundant gelatinization, then, adds 8 gram octadecanoic acid calcium fine powders, 2.5 gram blowing agent H fine powders, 7 gram sodium bicarbonate and 5 gram urea respectively and adds the solution that 100 ml waters form, and stirs evenly.Add the solution that 50 gram talcum powder, 100 grams pulp board, 13 gram alum and 100 ml waters through being ground into the fiber fines shape form again,, make it even through fully rubbing up.
Welding bell is heated to 220 ℃, and it is an amount of to get above-mentioned compound, filling die cavity, matched moulds, and depanning after about 1.5 minutes gets the disposable fast food bowl.
4. be blended into 150 ml waters in 50 gram starch, stir evenly, heating makes its abundant gelatinization, then, adds 4 gram octadecanoic acid aluminium fine powders, 1 gram blowing agent H fine powder, 7 gram sodium bicarbonate and 5 gram urea respectively and adds the solution that 45 ml waters form, and stirs evenly.Add the solution that 40 gram talcum powder, 40 grams pulp board, 13 gram alum and 45 ml waters through being ground into the fiber fines shape form again,, make it even through fully rubbing up.
Welding bell is heated to 200 ℃, and it is an amount of to get above-mentioned compound, loading mould cavity, matched moulds, and depanning after about 1.5 minutes gets the disposable fast food bowl.
Claims (4)
1. a fully degradeable foamed material is characterized in that described fully degradeable foamed material is based on starch, mixes talcum powder, octadecane hydrochlorate, paper pulp or paper powder, whipping agent and water etc. and makes by the hot press moulding shaping behind thorough mixing.
2. fully degradeable foamed material according to claim 1 is characterized in that each material component, the proportioning of described foamed glue is as follows:
Material share (weight)
Starch 1
Talcum powder 0.4~1
Paper pulp or paper powder 0~2
Octadecane hydrochlorate 0.01~0.1
Blowing agent H 0.01~0.1
Urea 0.08~0.2
Alum 0.1~0.35
Sodium bicarbonate 0.05~0.2
Water is 55~75% of total amount
3. as claim 1,2 described fully degradeable foamed materials, the making method that it is characterized in that described foamed glue is: earlier with starch pasting, compound is sneaked into and fully integrated into to other components in will filling a prescription again, then with mold heated to 180~260 of tool exhaust seam ℃, get an amount of compound mold pressing, be drying to obtain.
4. as fully degradeable foamed material as described in the claim 1,2,3, it is characterized in that described octadecane hydrochlorate means the divalence or the trivalent metal salt of octadecanoic acid.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN97109174A CN1098303C (en) | 1997-07-22 | 1997-07-22 | Fully degradeable foamed material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN97109174A CN1098303C (en) | 1997-07-22 | 1997-07-22 | Fully degradeable foamed material |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1206023A true CN1206023A (en) | 1999-01-27 |
CN1098303C CN1098303C (en) | 2003-01-08 |
Family
ID=5170985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN97109174A Expired - Fee Related CN1098303C (en) | 1997-07-22 | 1997-07-22 | Fully degradeable foamed material |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1098303C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104817709A (en) * | 2015-04-29 | 2015-08-05 | 桐城市福润包装材料有限公司 | Starch packaging film preparation process |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4613627A (en) * | 1982-12-13 | 1986-09-23 | Usg Acoustical Products Company | Process for the manufacture of shaped fibrous products and the resultant product |
CH671961A5 (en) * | 1987-02-27 | 1989-10-13 | Amrotex Ag | |
GB2208651B (en) * | 1987-08-18 | 1991-05-08 | Warner Lambert Co | Shaped articles made from pre-processed starch |
US5256711A (en) * | 1991-10-04 | 1993-10-26 | Director-General Of Agency Of Industrial Science | Starch-containing biodegradable plastic and method of producing same |
-
1997
- 1997-07-22 CN CN97109174A patent/CN1098303C/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104817709A (en) * | 2015-04-29 | 2015-08-05 | 桐城市福润包装材料有限公司 | Starch packaging film preparation process |
Also Published As
Publication number | Publication date |
---|---|
CN1098303C (en) | 2003-01-08 |
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