JP2625576C - - Google Patents
Info
- Publication number
- JP2625576C JP2625576C JP2625576C JP 2625576 C JP2625576 C JP 2625576C JP 2625576 C JP2625576 C JP 2625576C
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- temperature
- foamed
- sheet
- blowing agent
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 173
- 239000007788 liquid Substances 0.000 claims description 97
- 229920000642 polymer Polymers 0.000 claims description 71
- 239000002861 polymer material Substances 0.000 claims description 42
- 239000004604 Blowing Agent Substances 0.000 claims description 31
- 239000006261 foam material Substances 0.000 claims description 28
- 239000006260 foam Substances 0.000 claims description 26
- 238000005187 foaming Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 25
- 238000002156 mixing Methods 0.000 claims description 25
- 239000004033 plastic Substances 0.000 claims description 24
- 229920003023 plastic Polymers 0.000 claims description 23
- 238000001125 extrusion Methods 0.000 claims description 16
- 239000011148 porous material Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 11
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 10
- 238000000137 annealing Methods 0.000 claims description 8
- 238000010899 nucleation Methods 0.000 claims description 8
- 239000001569 carbon dioxide Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000010924 continuous production Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 238000009738 saturating Methods 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 229920000106 Liquid crystal polymer Polymers 0.000 claims 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 claims 1
- 235000013372 meat Nutrition 0.000 claims 1
- 239000007789 gas Substances 0.000 description 20
- 230000003068 static Effects 0.000 description 13
- 239000000243 solution Substances 0.000 description 12
- 239000012530 fluid Substances 0.000 description 10
- 239000011344 liquid material Substances 0.000 description 9
- 238000009792 diffusion process Methods 0.000 description 8
- 229920000915 polyvinyl chloride Polymers 0.000 description 8
- 239000004800 polyvinyl chloride Substances 0.000 description 8
- 239000007858 starting material Substances 0.000 description 5
- 238000001000 micrograph Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 239000004698 Polyethylene (PE) Substances 0.000 description 2
- 230000001413 cellular Effects 0.000 description 2
- 239000002666 chemical blowing agent Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920002959 polymer blend Polymers 0.000 description 2
- 239000012047 saturated solution Substances 0.000 description 2
- ZNAMMSOYKPMPGC-HTOAHKCRSA-N (2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-(2-phenylethylsulfanyl)oxane-3,4,5-triol Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1SCCC1=CC=CC=C1 ZNAMMSOYKPMPGC-HTOAHKCRSA-N 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- 229920000426 Microplastic Polymers 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000008258 liquid foam Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012229 microporous material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained Effects 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Family
ID=
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