CN109734987A - A kind of bamboo fibre microcellular foam material and its manufacturing method - Google Patents
A kind of bamboo fibre microcellular foam material and its manufacturing method Download PDFInfo
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- CN109734987A CN109734987A CN201910037363.5A CN201910037363A CN109734987A CN 109734987 A CN109734987 A CN 109734987A CN 201910037363 A CN201910037363 A CN 201910037363A CN 109734987 A CN109734987 A CN 109734987A
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- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 67
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 67
- 241001330002 Bambuseae Species 0.000 title claims abstract description 67
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 67
- 239000011425 bamboo Substances 0.000 title claims abstract description 67
- 239000000835 fiber Substances 0.000 title claims abstract description 65
- 239000006261 foam material Substances 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- -1 polyethylene Polymers 0.000 claims abstract description 30
- 229920000573 polyethylene Polymers 0.000 claims abstract description 28
- 239000004698 Polyethylene Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 26
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000007822 coupling agent Substances 0.000 claims abstract description 21
- 239000011256 inorganic filler Substances 0.000 claims abstract description 20
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 20
- 239000004014 plasticizer Substances 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 8
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 20
- 238000001125 extrusion Methods 0.000 claims description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 6
- JUQRWCMITUNYSA-UHFFFAOYSA-N O=S(=O)=NN=S(=O)=O Chemical compound O=S(=O)=NN=S(=O)=O JUQRWCMITUNYSA-UHFFFAOYSA-N 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000005453 pelletization Methods 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 125000004423 acyloxy group Chemical group 0.000 claims 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims 1
- 239000001993 wax Substances 0.000 claims 1
- 238000005187 foaming Methods 0.000 abstract description 9
- 229920003023 plastic Polymers 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 3
- 239000002023 wood Substances 0.000 abstract description 3
- 230000000116 mitigating effect Effects 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 description 8
- 238000005406 washing Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000004088 foaming agent Substances 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 2
- HBGPNLPABVUVKZ-POTXQNELSA-N (1r,3as,4s,5ar,5br,7r,7ar,11ar,11br,13as,13br)-4,7-dihydroxy-3a,5a,5b,8,8,11a-hexamethyl-1-prop-1-en-2-yl-2,3,4,5,6,7,7a,10,11,11b,12,13,13a,13b-tetradecahydro-1h-cyclopenta[a]chrysen-9-one Chemical compound C([C@@]12C)CC(=O)C(C)(C)[C@@H]1[C@H](O)C[C@]([C@]1(C)C[C@@H]3O)(C)[C@@H]2CC[C@H]1[C@@H]1[C@]3(C)CC[C@H]1C(=C)C HBGPNLPABVUVKZ-POTXQNELSA-N 0.000 description 1
- PFRGGOIBYLYVKM-UHFFFAOYSA-N 15alpha-hydroxylup-20(29)-en-3-one Natural products CC(=C)C1CCC2(C)CC(O)C3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 PFRGGOIBYLYVKM-UHFFFAOYSA-N 0.000 description 1
- MEJAPGGFIJZHEJ-UHFFFAOYSA-N 5-acetamido-1,3,4-thiadiazole-2-sulfonyl chloride Chemical compound CC(=O)NC1=NN=C(S(Cl)(=O)=O)S1 MEJAPGGFIJZHEJ-UHFFFAOYSA-N 0.000 description 1
- SOKRNBGSNZXYIO-UHFFFAOYSA-N Resinone Natural products CC(=C)C1CCC2(C)C(O)CC3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 SOKRNBGSNZXYIO-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229940005657 pyrophosphoric acid Drugs 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Landscapes
- Molding Of Porous Articles (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A kind of bamboo fibre microcellular foam material is made of the raw material that following weight matches: 30-70 parts of polyethylene, 20-70 parts of bamboo fibre, and 0.1-1 parts of titanate coupling agent, 4,4 ' -1-10 parts of oxobenzenesulfonyl hydrazide, 1-15 parts of plasticizer, 4-15 parts of inorganic filler.The present invention also provides the manufacturing methods of above-mentioned bamboo fibre microcellular foam material.Density is smaller after bamboo fibre microcellular foam material of the invention has an advantage that foaming, is conducive to the weight for mitigating product, reduces environmental pollution caused by due to abandoning nondegradable plastics；Material shaping high stability greatly reduces shrink material rate；Impact strength is high, and impact strength reaches 3.1 kg.cm/cm or more；There is good cushion performance after foaming.Moreover, the present invention uses bamboo fibre as one of main component, compared with timber, bamboo wood growth cycle is short, and resource relative abundance, cost is relatively low.
Description
Technical field
The present invention relates to foamed materials, and in particular to a kind of bamboo fibre microcellular foam material and its manufacturing method.
Background technique
With the quickening of industrialization degree, China's timber resources is more and more deficienter, can not meet the demand in market.Plastic wood
The composite material that powder is combined is inexpensive with its, the extensive pass of industry and academia is received with timber appearance, anti-insect etc.
Note, but the composite material still has several drawbacks (such as timber resources scarcity, poor toughness, density are big), seriously affects material
Therefore application range needs to research and develop new material, substitutes the composite material.
Summary of the invention
It is this technical problem to be solved by the invention is to provide a kind of bamboo fibre microcellular foam material and its manufacturing method
Bamboo fibre microcellular foam material density is smaller, is conducive to the weight for mitigating product, and reduction is caused because abandoning nondegradable plastics
Environmental pollution, and material shaping stability is high, and impact strength is high.The technical solution adopted is as follows:
A kind of bamboo fibre microcellular foam material, it is characterised in that be made of the raw material that following weight matches: 30-70 parts of polyethylene,
20-70 parts of bamboo fibre, 0.1-1 parts of titanate coupling agent, 4,4 ' -1-10 parts of oxobenzenesulfonyl hydrazide are 1-15 parts of plasticizer, inorganic
4-15 parts of filler.
It is preferred that the polyethylene is the high pressure polyethylene that melt index is 10-20g/10min.
It is preferred that the bamboo fibre is the bamboo fibre that mesh number is 30-200.It is preferred that water content≤6%wt of above-mentioned bamboo fibre；
Water content≤2%wt of more preferable above-mentioned bamboo fibre.Bamboo fibre contained humidity can be made to evaporate by drying, to make bamboo fibre
Water content reaches requirement.
It is preferred that the titanate coupling agent is that (two is pungent for (the dioctyl phosphoric acid acyloxy) titanate esters of isopropyl three or isopropyl three
Base pyrophosphoric acid acyloxy) titanate esters.Above-mentioned titanate coupling agent can be such that bamboo fibre preferably merges with polyvinyl resin one
It rises.
The 4,4 '-oxobenzenesulfonyl hydrazide is foaming agent.The side of control material additive amount and injection pressure can be passed through
Formula, controls the foaming degree of foamed material, to change the intensity and density of material.
It is preferred that the plasticizer is polyethylene glycol or polyethylene wax.
It is preferred that the inorganic filler is talcum powder, titanium dioxide or calcium carbonate.Inorganic filler is mainly used for controlling material
Density.
The present invention also provides the manufacturing methods of above-mentioned bamboo fibre microcellular foam material, it is characterised in that includes the following steps:
(1) by weight, it is equipped with following raw material: 30-70 parts of polyethylene, 20-70 parts of bamboo fibre, titanate coupling agent 0.1-1
Part, 4,4 ' -1-10 parts of oxobenzenesulfonyl hydrazide, 1-15 parts of plasticizer, 4-15 parts of inorganic filler；
(2) polyethylene, bamboo fibre, titanate coupling agent, plasticizer and inorganic filler are added in batch mixer, utilize stirring
Device stirs 5-10 minute, and the revolving speed of blender is 500-1000 revs/min, make polyethylene, bamboo fibre, titanate coupling agent,
Plasticizer and inorganic filler are uniformly mixed, and obtain mixed material；
(3) extruding pelletization
Extrusion equipment uses double screw extruder, and the barrel front end of double screw extruder is equipped with main spout, is equipped in the middle part of barrel
Side spout, barrel rear end are equipped with extrusion die, and main spout is connected with main feeder, and side spout is connected with side feeder；
By mixed material and 4,4'- bis--sulfohydrazide diphenyl ether is added separately in main feeder and side feeder；Be switched on Shi Xiankai
Main feeder is opened, after waiting the extrusion die discharging of double screw extruders to stablize, is then turned on side feeder injection 4,4'-, bis--sulphonyl
Hydrazine diphenyl ether；The barrel temperature of double screw extruder be 170-190 DEG C, 200-300 revs/min of screw speed under conditions of into
Row melt blending is squeezed out, and is granulated, and obtains graininess bamboo fibre microcellular foam material.
Above-mentioned material is when double screw extruder is squeezed out since temperature and pressure does not reach the double benzene of foaming agent 4,4 '-oxo
The foaming critical point of sulfohydrazide, will not occur foaming effect.When graininess bamboo fibre microcellular foam material is in injection molding machine 210
When being molded at a temperature of DEG C, required since temperature reaches foaming, so material starts to foam, by the pressure and injection molding being molded
The foaming degree of amount control material.
Density is smaller after bamboo fibre microcellular foam material of the invention has an advantage that (1) foaming, is conducive to mitigate system
The weight of product reduces environmental pollution caused by due to abandoning nondegradable plastics；(2) material shaping high stability greatly drops
Low shrink material rate (washing shrinkage can reach 0.6% hereinafter, and common polythene is 1-1.5%)；(3) impact strength is high, and impact is strong
Degree reaches 3.1 kg.cm/cm or more；(4) foaming agent is directly added in double screw extruder, and obtained graininess bamboo fibre is micro-
Hole foamed material does not need any processing, so that it may and it is directly used in common injection machine production and obtains foamed products, it is easy to use；
(5) there is good cushion performance after foaming.Moreover, the present invention uses bamboo fibre as one of main component, compared with timber,
Bamboo wood growth cycle is short (about 2~3 years), and resource relative abundance, cost is relatively low.Bamboo fibre microcellular foam material of the invention can be with
Many industrial circles are widely applied to, including being used as light, high-intensitive component, production container, sports equipment etc. in the car.
Specific embodiment
Embodiment 1
In the present embodiment, the manufacturing method of bamboo fibre microcellular foam material includes the following steps:
(1) by weight, be equipped with following raw material: 60 parts of polyethylene (is the poly- second of high pressure that melt index is 10g/10min
Alkene), 35 parts of bamboo fibre (its mesh number is 40, water content 2%wt), 0.6 part of titanate coupling agent (is that (two is pungent for isopropyl three
Base phosphoric acid acyloxy) titanate esters), 4,4 ' -2 parts of oxobenzenesulfonyl hydrazide, 2 parts of plasticizer (being polyethylene wax), inorganic filler 5
Part (being calcium carbonate)；
(2) polyethylene, bamboo fibre, titanate coupling agent, plasticizer and inorganic filler are added in batch mixer, utilize stirring
Device stirs 8 minutes, and the revolving speed of blender is 800 revs/min, make polyethylene, bamboo fibre, titanate coupling agent, plasticizer and
Inorganic filler is uniformly mixed, and obtains mixed material；
(3) extruding pelletization
Extrusion equipment uses double screw extruder, and the barrel front end of double screw extruder is equipped with main spout, is equipped in the middle part of barrel
Side spout, barrel rear end are equipped with extrusion die, and main spout is connected with main feeder, and side spout is connected with side feeder；
By mixed material and 4,4'- bis--sulfohydrazide diphenyl ether is added separately in main feeder and side feeder；Be switched on Shi Xiankai
Main feeder is opened, after waiting the extrusion die discharging of double screw extruders to stablize, is then turned on side feeder injection 4,4'-, bis--sulphonyl
Hydrazine diphenyl ether；It is melted under conditions of the barrel temperature of double screw extruder is 170-190 DEG C, 250 revs/min of screw speed
Melt blending, squeeze out, and be granulated, obtains graininess bamboo fibre microcellular foam material.
By graininess bamboo fibre microcellular foam material obtained in injection molding machine with 210 DEG C under the conditions of carry out injection molding,
Standard mechanics test bars are obtained, after tested, washing shrinkage 0.4%, density 0.85g/cm3L, tensile strength 30MPa break
Splitting elongation is 43%, and impact strength is 3.9 kg.cm/cm, and heat distortion temperature (HDT) is 120 DEG C.
Embodiment 2
In the present embodiment, the manufacturing method of bamboo fibre microcellular foam material includes the following steps:
(1) by weight, be equipped with following raw material: 50 parts of polyethylene (is the poly- second of high pressure that melt index is 20g/10min
Alkene), 42 parts of bamboo fibre (its mesh number is 100, water content 1%wt), 1 part of titanate coupling agent (is three (dioctyl of isopropyl
Phosphoric acid acyloxy) titanate esters), 4,4 ' -1 part of oxobenzenesulfonyl hydrazide, 3 parts of plasticizer (being polyethylene wax), 4 parts of inorganic filler
(being calcium carbonate)；
(2) polyethylene, bamboo fibre, titanate coupling agent, plasticizer and inorganic filler are added in batch mixer, utilize stirring
Device stirs 10 minutes, and the revolving speed of blender is 500 revs/min, make polyethylene, bamboo fibre, titanate coupling agent, plasticizer and
Inorganic filler is uniformly mixed, and obtains mixed material；
(3) extruding pelletization
Extrusion equipment uses double screw extruder, and the barrel front end of double screw extruder is equipped with main spout, is equipped in the middle part of barrel
Side spout, barrel rear end are equipped with extrusion die, and main spout is connected with main feeder, and side spout is connected with side feeder；
By mixed material and 4,4'- bis--sulfohydrazide diphenyl ether is added separately in main feeder and side feeder；Be switched on Shi Xiankai
Main feeder is opened, after waiting the extrusion die discharging of double screw extruders to stablize, is then turned on side feeder injection 4,4'-, bis--sulphonyl
Hydrazine diphenyl ether；It is melted under conditions of the barrel temperature of double screw extruder is 170-190 DEG C, 300 revs/min of screw speed
Melt blending, squeeze out, and be granulated, obtains graininess bamboo fibre microcellular foam material.
By graininess bamboo fibre microcellular foam material obtained in injection molding machine with 210 DEG C under the conditions of carry out injection molding,
Standard mechanics test bars are obtained, after tested, washing shrinkage 0.3%, density 0.95g/cm3L, tensile strength 25MPa break
Splitting elongation is 30%, impact strength 4.5kg.cm/cm, and heat distortion temperature (HDT) is 115 DEG C.
Embodiment 3
In the present embodiment, the manufacturing method of bamboo fibre microcellular foam material includes the following steps:
(1) by weight, it is equipped with following raw material: 70 parts of polyethylene (being the high pressure polyethylene that melt index is 20g/10min),
20 parts of bamboo fibre (its mesh number is 60, water content 3%wt), 0.4 part of titanate coupling agent (are that (dioctyl is burnt for isopropyl three
Phosphoric acid acyloxy) titanate esters), 4,4 ' -3 parts of oxobenzenesulfonyl hydrazide, 3 parts of plasticizer (being polyethylene wax), inorganic filler 10
Part (being calcium carbonate)；
(2) polyethylene, bamboo fibre, titanate coupling agent, plasticizer and inorganic filler are added in batch mixer, utilize stirring
Device stirs 5 minutes, and the revolving speed of blender is 1000 revs/min, make polyethylene, bamboo fibre, titanate coupling agent, plasticizer and
Inorganic filler is uniformly mixed, and obtains mixed material；
(3) extruding pelletization
Extrusion equipment uses double screw extruder, and the barrel front end of double screw extruder is equipped with main spout, is equipped in the middle part of barrel
Side spout, barrel rear end are equipped with extrusion die, and main spout is connected with main feeder, and side spout is connected with side feeder；
By mixed material and 4,4'- bis--sulfohydrazide diphenyl ether is added separately in main feeder and side feeder；Be switched on Shi Xiankai
Main feeder is opened, after waiting the extrusion die discharging of double screw extruders to stablize, is then turned on side feeder injection 4,4'-, bis--sulphonyl
Hydrazine diphenyl ether；It is melted under conditions of the barrel temperature of double screw extruder is 170-190 DEG C, 200 revs/min of screw speed
Melt blending, squeeze out, and be granulated, obtains graininess bamboo fibre microcellular foam material.
By graininess bamboo fibre microcellular foam material obtained in injection molding machine with 210 DEG C under the conditions of carry out injection molding,
Standard mechanics test bars are obtained, after tested, washing shrinkage 0.6%, density 0.75g/cm3L, tensile strength 48MPa break
Splitting elongation is 100%, and impact strength is 3.1 kg.cm/cm, and heat distortion temperature (HDT) is 100 DEG C.
Claims (9)
1. a kind of bamboo fibre microcellular foam material, it is characterised in that be made of the raw material that following weight matches: polyethylene 30-70
Part, 20-70 parts of bamboo fibre, 0.1-1 parts of titanate coupling agent, 4,4 ' -1-10 parts of oxobenzenesulfonyl hydrazide, 1-15 parts of plasticizer,
4-15 parts of inorganic filler.
2. bamboo fibre microcellular foam material according to claim 1, it is characterized in that: the polyethylene is that melt index is
The high pressure polyethylene of 10-20g/10min.
3. bamboo fibre microcellular foam material according to claim 1, it is characterized in that: it is 30- that the bamboo fibre, which is mesh number,
200 bamboo fibre.
4. bamboo fibre microcellular foam material according to claim 1 or 3, it is characterized in that: the water content of the bamboo fibre≤
6%wt.
5. bamboo fibre microcellular foam material according to claim 4, it is characterized in that: water content≤2% of the bamboo fibre
wt。
6. bamboo fibre microcellular foam material according to claim 1, it is characterized in that: the titanate coupling agent is isopropyl
Three (dioctyl phosphoric acid acyloxy) titanate esters or isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters.
7. bamboo fibre microcellular foam material according to claim 1, it is characterized in that: the plasticizer is polyethylene glycol or gathers
Ethylene waxes.
8. bamboo fibre microcellular foam material according to claim 1, it is characterized in that: the inorganic filler is talcum powder, two
Titanium oxide or calcium carbonate.
9. the manufacturing method of bamboo fibre microcellular foam material described in claim 1, it is characterised in that include the following steps:
(1) by weight, it is equipped with following raw material: 30-70 parts of polyethylene, 20-70 parts of bamboo fibre, titanate coupling agent 0.1-1
Part, 4,4 ' -1-10 parts of oxobenzenesulfonyl hydrazide, 1-15 parts of plasticizer, 4-15 parts of inorganic filler；
(2) polyethylene, bamboo fibre, titanate coupling agent, plasticizer and inorganic filler are added in batch mixer, utilize stirring
Device stirs 5-10 minute, and the revolving speed of blender is 500-1000 revs/min, make polyethylene, bamboo fibre, titanate coupling agent,
Plasticizer and inorganic filler are uniformly mixed, and obtain mixed material；
(3) extruding pelletization
Extrusion equipment uses double screw extruder, and the barrel front end of double screw extruder is equipped with main spout, is equipped in the middle part of barrel
Side spout, barrel rear end are equipped with extrusion die, and main spout is connected with main feeder, and side spout is connected with side feeder；
By mixed material and 4,4'- bis--sulfohydrazide diphenyl ether is added separately in main feeder and side feeder；Be switched on Shi Xiankai
Main feeder is opened, after waiting the extrusion die discharging of double screw extruders to stablize, is then turned on side feeder injection 4,4'-, bis--sulphonyl
Hydrazine diphenyl ether；The barrel temperature of double screw extruder be 170-190 DEG C, 200-300 revs/min of screw speed under conditions of into
Row melt blending is squeezed out, and is granulated, and obtains graininess bamboo fibre microcellular foam material.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110272524A (en) * | 2019-06-18 | 2019-09-24 | 郭俊伶 | A kind of composite foam material and its preparation process |
| CN113372862A (en) * | 2021-06-21 | 2021-09-10 | 海程新材料(芜湖)有限公司 | Foaming type high-strength epoxy adhesive and preparation method thereof |
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