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CN1206023A - Fully degradeable foamed material - Google Patents

Fully degradeable foamed material Download PDF

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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
Authority
CN
China
Prior art keywords
fully
degradeable
foamed
gram
starch
Prior art date
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.)
Granted
Application number
CN 97109174
Other languages
Chinese (zh)
Other versions
CN1098303C (en
Inventor
张蕾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN97109174A priority Critical patent/CN1098303C/en
Publication of CN1206023A publication Critical patent/CN1206023A/en
Application granted granted Critical
Publication of CN1098303C publication Critical patent/CN1098303C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

Fully degradeable foamed material
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.
CN97109174A 1997-07-22 1997-07-22 Fully degradeable foamed material Expired - Fee Related CN1098303C (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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